{"id":161,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/mechanical-loosening\/"},"modified":"2026-05-23T22:52:05","modified_gmt":"2026-05-23T22:52:05","slug":"mechanical-loosening","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/mechanical-loosening\/","title":{"rendered":"Ce este sl\u0103birea mecanic\u0103? Deteriorarea progresiv\u0103"},"content":{"rendered":"<h1>\u00cen\u021belegerea sl\u0103birii mecanice<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Prim-plan senzor de vibra\u021bii Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Senzor optic (tahometru cu laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Baza magnetic\u0103.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Band\u0103 reflectorizant\u0103\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/161?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Sl\u0103bire mecanic\u0103<\/strong> este pierderea treptat\u0103 a for\u021bei de str\u00e2ngere, a tensiunii de fixare prin interferen\u021b\u0103 sau a rigidit\u0103\u021bii structurale \u00eentr-o \u00eembinare care a fost ini\u021bial asamblat\u0103 corect. De-a lungul lunilor sau anilor de func\u021bionare, aceasta se produce prin <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a>, cicluri termice, relaxarea materialului, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/corrosion\/\">coroziune<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/wear\/\">uzur\u0103<\/a>. Este important s\u0103 o distingem de cea ini\u021bial\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/looseness\/\">joc mecanic<\/a> cauzat\u0103 de o asamblare neglijent\u0103: sl\u0103birea este un proces lent <em>deterioration<\/em> a unei \u00eembin\u0103ri care ini\u021bial era str\u00e2ns\u0103 \u0219i cuplat\u0103 corespunz\u0103tor.<\/p>\n<p>Tocmai aceast\u0103 evolu\u021bie treptat\u0103 este cea care face ca sl\u0103birea elementelor de fixare s\u0103 fie periculoas\u0103. Deoarece procesul se desf\u0103\u0219oar\u0103 pe parcursul a mii de ore de func\u021bionare, de obicei trece neobservat p\u00e2n\u0103 c\u00e2nd vibra\u021biile cresc brusc sau elementul de fixare cedeaz\u0103 complet. \u00cen\u021belegerea mecanismelor care stau la baza acestui fenomen v\u0103 permite s\u0103 implementa\u021bi protocoale de inspec\u021bie \u0219i m\u0103suri preventive \u2014 depist\u00e2nd sl\u0103birea elementelor de fixare \u00eenc\u0103 din faza \u00een care poate fi remediat\u0103 cu ajutorul unei chei dinamometrice, \u00eenainte de a se ajunge la o defec\u021biune cauzat\u0103 de ruperea \u0219urubului.<\/p>\n<h2>1. Defini\u021bie: Sl\u0103bire vs. joc<\/h2>\n<p>Cele dou\u0103 no\u021biuni sunt adesea confundate, iar diferen\u021ba dintre ele este important\u0103 pentru diagnostic. <strong>Joc mecanic<\/strong> este o situa\u021bie \u00een care exist\u0103 un joc excesiv \u00eenc\u0103 de la \u00eenceput, de exemplu un \u0219urub care nu a fost str\u00e2ns conform specifica\u021biilor sau un rulment care a fost prelucrat prea slab. <strong>Loosening<\/strong> este un proces \u2014 o \u00eembinare care ini\u021bial a fost fixat\u0103 corespunz\u0103tor, dar care \u0219i-a pierdut for\u021ba de fixare \u00een timpul utiliz\u0103rii. \u00cen practic\u0103, ambele ajung s\u0103 arate similar \u00eentr-o <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectrul de vibra\u021bii<\/a>, \u00eens\u0103 m\u0103surile corective sunt diferite: jocul indic\u0103 o eroare de asamblare sau de proiectare, \u00een timp ce sl\u0103birea indic\u0103 o condi\u021bie de func\u021bionare care duce la deteriorarea treptat\u0103 a \u00eembin\u0103rii. Distingerea \u00eentre cele dou\u0103 reprezint\u0103 diferen\u021ba dintre o solu\u021bie definitiv\u0103 \u0219i o problem\u0103 recurent\u0103. Sl\u0103birea prezint\u0103 o asem\u0103nare cu <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/pedestal-looseness\/\">sl\u0103birea soclului<\/a> \u0219i un cadru de ma\u0219in\u0103 deformat provenind de la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/soft-foot\/\">picior moale<\/a>, toate acestea afect\u00e2nd rigiditatea structural\u0103 de care depinde o ma\u0219in\u0103.<\/p>\n<h2>2. Mecanismele de sl\u0103bire mecanic\u0103<\/h2>\n<h3>Sl\u0103birea provocat\u0103 de vibra\u021bii<\/h3>\n<p>Acesta este cel mai frecvent mecanism \u00eent\u00e2lnit la ma\u0219inile rotative. Vibra\u021biile provoac\u0103 un alunecaj microscopic la nivelul interfe\u021bei filetului: fiecare ciclu permite piuli\u021bei sau \u0219urubului s\u0103 se roteasc\u0103 cu o valoare infim\u0103, iar dup\u0103 mii de cicluri aceste mici deplas\u0103ri sl\u0103besc treptat elementul de fixare. Factorii cheie sunt amplitudinea \u0219i frecven\u021ba vibra\u021biilor, pre\u00eenc\u0103rcarea \u0219urubului, precum \u0219i coeficientul de frecare la nivelul filetului \u0219i sub capul \u0219urubului. Ca prag orientativ, amplitudinile vibra\u021biilor sus\u021binute care dep\u0103\u0219esc aproximativ <strong>0.5\u20131.0 g<\/strong> poate sl\u0103bi elementele de fixare \u00een timp.<\/p>\n<p>Mai r\u0103u, procesul se autoalimenteaz\u0103 \u2014 un <strong>spiral\u0103 cu auto-desfacere<\/strong>:<\/p>\n<ul>\n<li>Vibra\u021biile ini\u021biale provoac\u0103 o u\u0219oar\u0103 sl\u0103bire.<\/li>\n<li>Aceast\u0103 nou\u0103 sl\u0103bire amplific\u0103 vibra\u021biile prin efecte neliniare.<\/li>\n<li>Vibra\u021biile mai intense accelereaz\u0103 procesul de sl\u0103bire.<\/li>\n<li>Acest feedback pozitiv poate transforma o deteriorare lent\u0103 \u00eentr-una rapid\u0103.<\/li>\n<\/ul>\n<h3>Relaxare termic\u0103<\/h3>\n<p>Varia\u021biile de temperatur\u0103 reduc treptat for\u021ba de str\u00e2ngere \u00een dou\u0103 moduri. <strong>Expansiune diferen\u021bial\u0103<\/strong> se produce deoarece \u0219urubul \u0219i piesele fixate au coeficien\u021bi de dilatare termic\u0103 diferi\u021bi sau func\u021bioneaz\u0103 la temperaturi diferite; \u00eenc\u0103lzirea poate reduce tensiunea \u0219urubului, iar ciclurile repetate de \u00eenc\u0103lzire-r\u0103cire provoac\u0103 o solicitare alternativ\u0103 cunoscut\u0103 sub numele de \u201eefect de clichet termic\u201d. La temperaturi ridicate, fluajul poate determina alungirea permanent\u0103 \u0219i sl\u0103birea \u0219urubului. \u00cen plus, <strong>deformarea permanent\u0103 a garniturilor \u0219i a elementelor de etan\u0219are<\/strong> Aspecte legate de flan\u0219ele cu \u0219uruburi: materialele garniturilor se comprim\u0103 permanent sub efectul sarcinii \u0219i al c\u0103ldurii, \u00een\u0103l\u021bimea de str\u00e2ngere se reduce, \u00eembinarea se a\u0219eaz\u0103, iar tensiunea \u0219uruburilor scade \u2014 motiv pentru care \u00eembin\u0103rile cu garnitur\u0103 necesit\u0103 str\u00e2ngerea periodic\u0103.<\/p>\n<h3>\u00cencorporarea \u0219i a\u0219ezarea materialului<\/h3>\n<ul>\n<li><strong>Distrugerea rugozit\u0103\u021bii suprafe\u021bei:<\/strong> v\u00e2rfurile microscopice de pe suprafe\u021bele de contact se aplatizeaz\u0103 sub ac\u021biunea sarcinii.<\/li>\n<li><strong>Sedimentarea ini\u021bial\u0103:<\/strong> componentele se rod \u00een primele ore sau zile de func\u021bionare.<\/li>\n<li><strong>Deformare permanent\u0103:<\/strong> o u\u0219oar\u0103 deformare a plasticului \u00een punctele supuse celor mai mari solicit\u0103ri.<\/li>\n<li><strong>Net effect:<\/strong> grosimea ansamblului de \u00eembin\u0103ri se reduce, iar pre\u00eenc\u0103rcarea \u0219uruburilor scade odat\u0103 cu aceasta.<\/li>\n<\/ul>\n<h3>Uzura prin frecare<\/h3>\n<p>Atunci c\u00e2nd dou\u0103 suprafe\u021be fixate una de alta sufer\u0103 o mi\u0219care relativ\u0103 la nivel microscopic, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/wear\/\">fretting wear<\/a> se \u00eendep\u0103rteaz\u0103 materialul de pe suprafe\u021bele de contact, jocurile cresc, iar \u00eembinarea se sl\u0103be\u0219te \u0219i mai mult. \u00cembin\u0103rile prin presare \u0219i cele cu canelur\u0103 sunt deosebit de vulnerabile, deoarece se bazeaz\u0103 pe o interferen\u021b\u0103 str\u00e2ns\u0103 care este erodat\u0103 treptat de frecare.<\/p>\n<h3>Coroziune \u0219i atac chimic<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/corrosion\/\">Coroziune<\/a> reduce sec\u021biunea transversal\u0103 \u0219i rezisten\u021ba elementului de fixare. Efectul de ridicare cauzat de rugin\u0103 poate ini\u021bial <em>cre\u0219te<\/em> tensiunea, \u00eenainte de a \u00eempinge \u00eembinarea spre cedare; coroziunea filetului poate face imposibil\u0103 str\u00e2ngerea ulterioar\u0103, iar ac\u021biunea galvanic\u0103 dintre metale diferite atac\u0103 \u00eembinarea din interior.<\/p>\n<h3>Oboseal\u0103<\/h3>\n<p>Solicit\u0103rile alternante care \u00eenso\u021besc vibra\u021biile provoac\u0103, de asemenea, oboseala \u0219uruburilor <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fatigue\/\">oboseal\u0103<\/a>. Fisurile se formeaz\u0103 \u0219i se extind p\u00e2n\u0103 c\u00e2nd elementul de fixare cedeaz\u0103 \u2014 \u0219i, ceea ce este esen\u021bial, acest lucru se poate \u00eent\u00e2mpla chiar \u0219i atunci c\u00e2nd \u0219urubul nu prezint\u0103 niciun semn vizibil de sl\u0103bire. \u00cen mediile cu vibra\u021bii intense, ruperea elementelor de fixare din cauza oboselii materialului reprezint\u0103 un risc constant.<\/p>\n<h2>3. Detectarea sl\u0103birii progresive<\/h2>\n<h3>Tendin\u021be privind vibra\u021biile<\/h3>\n<p>Primul semnal de avertizare vine de obicei de la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/trend-analysis\/\">tendin\u021be \u00een domeniul vibra\u021biilor<\/a> ca parte a unui <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/condition-monitoring\/\">monitorizarea st\u0103rii<\/a> program. Urm\u0103ri\u021bi:<\/p>\n<ul>\n<li>O cre\u0219tere treptat\u0103 a nivelului general de vibra\u021bii pe parcursul unor luni sau ani.<\/li>\n<li>Apari\u021bia \u0219i dezvoltarea <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/harmonics\/\">armonic<\/a> componente (sl\u0103birea acestora este cunoscut\u0103 pentru faptul c\u0103 genereaz\u0103 o serie de armonici la viteza de func\u021bionare).<\/li>\n<li>Cre\u0219tere <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/phase\/\">faz\u0103<\/a> dispersia de la o m\u0103sur\u0103toare la alta.<\/li>\n<li>O trecere de la un r\u0103spuns la vibra\u021bii clar \u0219i liniar la unul neliniar.<\/li>\n<\/ul>\n<h3>Verific\u0103ri periodice ale cuplului de str\u00e2ngere a \u0219uruburilor<\/h3>\n<ul>\n<li>Verifica\u021bi cuplul de str\u00e2ngere anual sau semestrial la \u00eembin\u0103rile importante.<\/li>\n<li>\u00cenregistra\u021bi valorile \u0219i analiza\u021bi tendin\u021bele, nu v\u0103 limita\u021bi doar la calificativele \u201eadmis\/respins\u201d.<\/li>\n<li>Relaxarea cuplului mai mare de aproximativ <strong>20%<\/strong> indic\u0103 o relaxare semnificativ\u0103.<\/li>\n<li>Re\u021bine\u021bi ordinea \u2014 care \u0219uruburi se sl\u0103besc mai \u00eent\u00e2i \u0219i care se sl\u0103besc cel mai mult.<\/li>\n<\/ul>\n<h3>Inspec\u021bie fizic\u0103<\/h3>\n<ul>\n<li>C\u0103uta\u021bi urmele care indic\u0103 mi\u0219carea dintre piese.<\/li>\n<li>Verifica\u021bi dac\u0103 vopseaua este uzat\u0103 sau cr\u0103pat\u0103 la nivelul \u00eembin\u0103rilor.<\/li>\n<li>Fi\u021bi aten\u021bi la petele de rugin\u0103, semn al mi\u0219c\u0103rii combinate cu umezeala.<\/li>\n<li>C\u0103uta\u021bi resturi de uzur\u0103 \u2014 o pulbere fin\u0103, neagr\u0103 sau ro\u0219iatic\u0103, la punctele de contact.<\/li>\n<\/ul>\n<h2>4. Strategii de prevenire<\/h2>\n<h3>M\u0103suri de proiectare<\/h3>\n<ul>\n<li><strong>Dimensiunea adecvat\u0103 a elementului de fixare:<\/strong> \u0218uruburile mai mari rezist\u0103 mai bine la sl\u0103birea cauzat\u0103 de vibra\u021bii.<\/li>\n<li><strong>Mai multe elemente de fixare:<\/strong> s\u0103 distribuie sarcina \u0219i s\u0103 asigure redundan\u021ba.<\/li>\n<li><strong>Cuplarea corect\u0103 a filetului:<\/strong> cel pu\u021bin o lungime egal\u0103 cu diametrul \u0219urubului pe filetul cuplat.<\/li>\n<li><strong>Optimizarea rigidit\u0103\u021bii:<\/strong> cea mai bun\u0103 m\u0103sur\u0103 de protec\u021bie este reducerea vibra\u021biilor la surs\u0103.<\/li>\n<\/ul>\n<h3>Practici de asamblare<\/h3>\n<p>Aplicarea corect\u0103 a cuplului de str\u00e2ngere este esen\u021bial\u0103: folosi\u021bi chei dinamometrice calibrate, respecta\u021bi ordinea de str\u00e2ngere specificat\u0103 (\u00een form\u0103 de stea pe flan\u0219ele circulare), str\u00e2nge\u021bi \u00een mai multe etape \u00eembin\u0103rile critice \u0219i verifica\u021bi cuplul final la fiecare element de fixare. Deoarece obiectivul este, de fapt, str\u00e2ngerea <em>for\u021b\u0103<\/em> \u00een loc s\u0103 v\u0103 baza\u021bi pe valoarea cuplului, este mai util s\u0103 v\u0103 ghida\u021bi dup\u0103 o specifica\u021bie corespunz\u0103toare \u2014 a noastr\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/bolt-tightening-torque\/\">Calculator de cuplu de str\u00e2ngere a \u0219uruburilor<\/a> transform\u0103 o pre\u00eenc\u0103rcare dorit\u0103 \u00eentr-o valoare a cuplului, \u00een timp ce <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/bolt-preload-calculator\/\">Calculator de for\u021b\u0103 de pre\u00eenc\u0103rcare a \u0219uruburilor<\/a> arat\u0103 c\u00e2t\u0103 for\u021b\u0103 de str\u00e2ngere poate exercita efectiv un \u0219urub \u0219i o clas\u0103 de rezisten\u021b\u0103 date.<\/p>\n<p>Pe l\u00e2ng\u0103 cuplul corect, dispozitivele de blocare pozitiv\u0103 <strong>metode de blocare<\/strong> \u00eempiedic\u0103 sl\u0103birea elementului de fixare:<\/p>\n<ul>\n<li><strong>Compu\u0219i de blocare a filetelor:<\/strong> adezivi anaerobi (Loctite \u0219i produse similare) care \u00eempiedic\u0103 rotirea.<\/li>\n<li><strong>Lock washers:<\/strong> \u0219aibe despicate, \u00een form\u0103 de stea \u0219i zim\u021bate \u2014 de\u0219i eficacitatea lor este contestat\u0103.<\/li>\n<li><strong>Lock nuts:<\/strong> inser\u021bii din nailon, filete deformate sau matisare.<\/li>\n<li><strong>Safety wire:<\/strong> blocare mecanic\u0103 sigur\u0103 pentru elementele de fixare critice.<\/li>\n<li><strong>Pl\u0103ci \u0219i cleme de fixare:<\/strong> dispozitive mecanice de blocare special concepute.<\/li>\n<\/ul>\n<h3>Selec\u021bia materialelor<\/h3>\n<ul>\n<li>Folosi\u021bi elemente de fixare de calitate corespunz\u0103toare \u2014 8.8 sau 10.9 pentru sarcini mari.<\/li>\n<li>Alege\u021bi materiale rezistente la coroziune \u00een medii cu condi\u021bii dificile.<\/li>\n<li>Lua\u021bi \u00een considerare utilizarea unor straturi de acoperire pentru a controla \u0219i stabiliza caracteristicile de frecare.<\/li>\n<\/ul>\n<h3>Practici opera\u021bionale<\/h3>\n<ul>\n<li><strong>Str\u00e2nge\u021bi din nou dup\u0103 rodaj:<\/strong> str\u00e2nge\u021bi din nou dup\u0103 primele 24\u201348 de ore de func\u021bionare, odat\u0103 ce fixarea \u0219i a\u0219ezarea s-au produs.<\/li>\n<li><strong>Verificare periodic\u0103:<\/strong> Verifica\u021bi periodic cuplul de str\u00e2ngere \u2014 cel pu\u021bin o dat\u0103 pe an, iar pentru echipamentele critice, o dat\u0103 pe trimestru.<\/li>\n<li><strong>Controlul vibra\u021biilor:<\/strong> maintain good <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/echilibrare\/\">echilibrare<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/misalignment\/\">aliniere<\/a> pentru a men\u021bine for\u021bele de sl\u0103bire la un nivel redus \u00eenc\u0103 de la \u00eenceput.<\/li>\n<li><strong>Documentare:<\/strong> s\u0103 \u00eenregistreze valorile cuplului \u0219i s\u0103 analizeze evolu\u021bia datelor \u00een timp.<\/li>\n<\/ul>\n<h2>5. Confirmarea \u0219i diagnosticarea sl\u0103birii pe teren<\/h2>\n<p>Deoarece sl\u0103birea se manifest\u0103 printr-o cre\u0219tere a nivelului general \u0219i a familiei de armonici, o po\u021bi confirma cu ajutorul unui instrument portabil care m\u0103soar\u0103 at\u00e2t amplitudinea, c\u00e2t \u0219i faza. Un analizor cu dou\u0103 canale, cum ar fi <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> v\u0103 permite s\u0103 \u00eenregistra\u021bi spectrul la o carcas\u0103 de rulment sau la o plac\u0103 de baz\u0103 suspect\u0103, s\u0103 observa\u021bi seria caracteristic\u0103 de armonici la viteza de func\u021bionare \u0219i s\u0103 urm\u0103ri\u021bi cum variaz\u0103 faza de la o rulare la alta \u2014 acea faz\u0103 care nu se repet\u0103 \u0219i care distinge o \u00eembinare sl\u0103bit\u0103 de una \u00een stare perfect\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a>. M\u0103surarea la viteza de func\u021bionare, \u00een propriile suporturi ale ma\u0219inii, arat\u0103, de asemenea, dac\u0103 structura se rigidizeaz\u0103 la str\u00e2ngerea ulterioar\u0103, confirm\u00e2nd faptul c\u0103 sl\u0103birea \u2014 \u0219i nu o problem\u0103 a rotorului \u2014 a fost cauza. Acela\u0219i instrument verific\u0103 apoi dac\u0103 corectarea echilibr\u0103rii rotorului a eliminat for\u021ba care ducea la separarea \u00eembin\u0103rii.<\/p>\n<h2>6. C\u00e2nd sl\u0103birea semnaleaz\u0103 o problem\u0103 mai grav\u0103<\/h2>\n<p>Sl\u0103birea repetat\u0103 a unei \u00eembin\u0103ri este rareori boala \u00een sine \u2014 de obicei, este un simptom. Dac\u0103 o \u00eembinare nu r\u0103m\u00e2ne str\u00e2ns\u0103, c\u0103uta\u021bi cauza \u00een amonte:<\/p>\n<ul>\n<li><strong>Vibra\u021bii excesive:<\/strong> <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a>, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/misalignment\/\">nealiniere<\/a> sau <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/resonance\/\">rezonan\u021b\u0103<\/a> care genereaz\u0103 niveluri suficient de ridicate pentru a compromite fixarea obi\u0219nuit\u0103.<\/li>\n<li><strong>Proiectare necorespunz\u0103toare:<\/strong> elemente de fixare cu dimensiuni prea mici sau \u00een num\u0103r insuficient pentru sarcinile respective.<\/li>\n<li><strong>Probleme termice:<\/strong> cicluri de temperaturi extreme sau diferen\u021be mari de temperatur\u0103.<\/li>\n<li><strong>Coroziune:<\/strong> un mediu agresiv care afecteaz\u0103 constant elementele de fixare.<\/li>\n<li><strong>Oboseal\u0103:<\/strong> sarcini alternante care dep\u0103\u0219esc limita de rezisten\u021b\u0103 a elementului de fixare.<\/li>\n<\/ul>\n<p>\u00cen fiecare dintre aceste cazuri, simpla str\u00e2ngere a \u0219uruburilor nu aduce dec\u00e2t o u\u0219urare temporar\u0103. Pentru a g\u0103si o solu\u021bie permanent\u0103, trebuie identificat\u0103 \u0219i remediat\u0103 cauza principal\u0103.<\/p>\n<p>Sl\u0103birea mecanic\u0103 este un proces insidios care transform\u0103 \u00een t\u0103cere utilajele asamblate corespunz\u0103tor \u00een echipamente vibrante \u0219i nesigure. Monitorizarea proactiv\u0103 prin analiza tendin\u021belor vibra\u021biilor \u0219i inspec\u021bia fizic\u0103, combinate cu practici riguroase de asamblare \u0219i metode eficiente de fixare, \u00eempiedic\u0103 sl\u0103birea s\u0103 afecteze fiabilitatea \u0219i siguran\u021ba echipamentelor.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre sl\u0103birea mecanic\u0103, procesul progresiv prin care elementele de fixare \u0219i \u00eembin\u0103rile str\u00e2nse corect pierd treptat tensiunea din cauza vibra\u021biilor, ciclurilor termice \u0219i oboselii.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-161","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/161\/revisions"}],"predecessor-version":[{"id":101390,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/161\/revisions\/101390"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}