{"id":816,"date":"2025-01-06T03:28:04","date_gmt":"2025-01-06T03:28:04","guid":{"rendered":"https:\/\/www.ylfastener.com\/?p=816"},"modified":"2025-01-06T03:28:04","modified_gmt":"2025-01-06T03:28:04","slug":"coarse-threads-vs-fine-threads","status":"publish","type":"post","link":"https:\/\/www.ylfastener.com\/ro\/coarse-threads-vs-fine-threads\/","title":{"rendered":"Fire grosiere vs. Fire fine"},"content":{"rendered":"<p>Ce este mai bun, fire grosiere sau fire fine? Aceasta este o \u00eentrebare frecvent auzit\u0103 la compania noastr\u0103\u00a0relativ at\u00e2t la inser\u021bii, c\u00e2t \u0219i la elementele de fixare cu filet tat\u0103 \u0219i este de p\u0103rere c\u0103 firele grosiere au multe avantaje \u0219i beneficii fa\u021b\u0103 de firele fine.<\/p>\n<h2><strong><b>Fire grosiere<\/b><\/strong><\/h2>\n<p>Firele grosiere sunt mai durabile \u0219i au o rezisten\u021b\u0103 mai mare la decapare \u0219i filetare \u00eencruci\u0219at\u0103. \u00cen\u0103l\u021bimea fiec\u0103rui filet este mai mare dec\u00e2t firul fin corespunz\u0103tor, astfel \u00eenc\u00e2t exist\u0103 mai mult material \u00eentre fiecare fir, ceea ce face cuplarea flancului mai mare.<\/p>\n<p>Firele grosiere sunt mai pu\u021bin susceptibile de a fi t\u0103iate sau deteriorate, a\u0219a c\u0103 nu trebuie s\u0103 fie \u201emanipulate cu grij\u0103\u201d la fel de mult ca firele fine. O t\u0103ietur\u0103 pe un fir fin poate cauza o problem\u0103 mai mare, propor\u021bional, din cauza superficialit\u0103\u021bii firului, de ex. calajarea sau asamblarea.<\/p>\n<p>Elementele de fixare cu filet grosier se instaleaz\u0103 mult mai repede dec\u00e2t elementele de fixare cu filet fin. Un \u0219urub\u00a01\/2\u201d-13\u00a0UNC\u00a0se asambla \u00een 65% din timpul necesar pentru asamblarea unui \u0219urub\u00a01\/2\u201d-20UNF. \u0218urubul de 1\/2\u201d-20UNF avanseaz\u0103 cu un inch \u00een 20 de rota\u021bii, \u00een timp ce \u0219urubul de 1\/2\u201d-13UNC avanseaz\u0103 cu un inch \u00een doar 13 rota\u021bii.<\/p>\n<p>Firele grosiere nu sunt afectate de acumularea de placare la fel de mult ca firele fine. Aceea\u0219i cantitate de placare pe un fir grosier ar folosi o cantitate mai mare din aloca\u021bia de placare pe un fir fin. Filetele fine se confrunt\u0103 cu mai multe probleme de calaj \u0219i asamblare din cauza acumul\u0103rii de placare dec\u00e2t firele grosiere, deoarece exist\u0103 mai pu\u021bin material \u00eentre fiecare flanc al filetului.<\/p>\n<p>C\u00e2nd utiliza\u021bi inser\u021bii de blocare sau alte elemente de fixare cu filet, firele grosiere sunt mult mai pu\u021bin susceptibile de a suferi uzuri dec\u00e2t firele fine. Firele fine au mai multe rota\u021bii, a\u0219a cum am discutat anterior, iar acest lucru, \u00eempreun\u0103 cu potrivirile cu diametrul mai apropiat al firelor fine, cre\u0219te tendin\u021ba firelor fine de a experimenta uzura firului.<\/p>\n<h2><strong><b>Fire fine<\/b><\/strong><\/h2>\n<p>\u0218uruburile cu filet fin sunt mai puternice dec\u00e2t \u0219uruburile cu filet grosier corespunz\u0103toare de aceea\u0219i duritate. Aceasta este at\u00e2t \u00een tensiune, c\u00e2t \u0219i \u00een forfecare datorit\u0103 \u0219uruburilor cu filet fin care au o zon\u0103 de tensiune de trac\u021biune pu\u021bin mai mare \u0219i un diametru minor.<\/p>\n<p>Firele fine au mai pu\u021bin\u0103 tendin\u021b\u0103 de a se sl\u0103bi sub vibra\u021bii datorit\u0103 unghiului de spiral\u0103 mai mic dec\u00e2t firele grosiere. Bobinele de prindere cu inser\u021bie de blocare cu filet fin sunt mai flexibile dec\u00e2t bobinele de prindere cu inser\u021bie cu filet grosier de dimensiunea corespunz\u0103toare \u0219i sunt mai pu\u021bin susceptibile s\u0103 accepte un set \u00een condi\u021bii de vibra\u021bie.<\/p>\n<p>Firele fine, datorit\u0103 pasului lor mai fin permit ajust\u0103ri mai fine \u00een acele aplica\u021bii care au nevoie de aceast\u0103 caracteristic\u0103.<\/p>\n<p>Firele fine pot fi \u00eentinse mai u\u0219or \u00een materiale dificil de lovit \u0219i \u00een sec\u021biunile cu pere\u021bi sub\u021biri.<\/p>\n<p>Filetele fine necesit\u0103 un cuplu de str\u00e2ngere mai mic pentru a dezvolta pre\u00eenc\u0103rc\u0103ri echivalente cu dimensiunile corespunz\u0103toare \u0219uruburilor cu filet grosier.<\/p>\n<h2><strong><b>Rezumat<\/b><\/strong><\/h2>\n<p>\u00cen mod normal, un fir grosier este specificat pentru majoritatea aplica\u021biilor industriale, cu excep\u021bia cazului \u00een care exist\u0103 un motiv conving\u0103tor pentru a nu face acest lucru. Aplica\u021biile militare \u0219i aerospa\u021biale folosesc \u00een general fire grosiere pe dimensiunile 8-32 \u0219i mai mici. La elementele de fixare metrice, \u00een general, dimensiunile grosiere sunt cele mai frecvent utilizate, pasurile mai fine fiind mai pu\u021bin disponibile.<\/p>","protected":false},"excerpt":{"rendered":"<p>Which is better, coarse threads or fine threads? This is a frequently heard question at our company\u00a0relative to both inserts and male threaded fasteners, and it is our opinion that coarse threads have many advantages and benefits over fine threads. Coarse Threads Coarse threads are more durable and have greater resistance to stripping and cross-threading. [\u2026]<\/p>","protected":false},"author":1,"featured_media":340,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-816","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.11 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Coarse Threads vs. Fine Threads - HANDAN YANLANG FASTENER CO., LTD<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ylfastener.com\/ro\/coarse-threads-vs-fine-threads\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Coarse Threads vs. Fine Threads - HANDAN YANLANG FASTENER CO., LTD\" \/>\n<meta property=\"og:description\" content=\"Which is better, coarse threads or fine threads? This is a frequently heard question at our company\u00a0relative to both inserts and male threaded fasteners, and it is our opinion that coarse threads have many advantages and benefits over fine threads. Coarse Threads Coarse threads are more durable and have greater resistance to stripping and cross-threading. 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