{"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\/bs\/coarse-threads-vs-fine-threads\/","title":{"rendered":"Grube niti naspram fine niti"},"content":{"rendered":"<p>\u0160to je bolje, grubi ili fini niti? Ovo je pitanje koje se \u010desto \u010duje u na\u0161oj kompaniji\u00a0vezano i za umetke i za pri\u010dvr\u0161\u0107iva\u010de s mu\u0161kim navojem, a na\u0161e mi\u0161ljenje je da grubi navoji imaju mnoge prednosti i prednosti u odnosu na fine navoje.<\/p>\n<h2><strong><b>Coarse Threads<\/b><\/strong><\/h2>\n<p>Grubi navoji su izdr\u017eljiviji i imaju ve\u0107u otpornost na skidanje i popre\u010dno uvla\u010denje. Visina svakog navoja je ve\u0107a od odgovaraju\u0107eg finog navoja, tako da postoji vi\u0161e materijala izme\u0111u svakog navoja, \u010dime je zahvat na boku ve\u0107i.<\/p>\n<p>Grubi niti su manje podlo\u017eni urezivanju ili o\u0161te\u0107enju, tako da se njima ne mora \u201epa\u017eljivo rukovati\u201c kao s finim nitima. Zarez na finom navoju mo\u017ee uzrokovati ve\u0107i problem proporcionalno zbog plitkosti navoja, npr. gaming ili monta\u017ea.<\/p>\n<p>Pri\u010dvr\u0161\u0107iva\u010di s grubim navojem postavljaju se mnogo br\u017ee od pri\u010dvr\u0161\u0107iva\u010da s finim navojem. Vijak\u00a01\/2\u201d-13\u00a0UNC\u00a0sastavlja se u 65% vremena potrebnog za sklapanje\u00a01\/2\u201d-20UNF\u00a0vijka. 1\/2\u201d-20UNF\u00a0vijak napreduje za jedan in\u010d za 20 okretaja, dok 1\/2\u201d-13UNC\u00a0vijak napreduje za jedan in\u010d za samo 13 okretaja.<\/p>\n<p>Na grube niti ne utje\u010de talo\u017eenje toliko koliko na fine niti. Ista koli\u010dina prevlake na grubom navoju potro\u0161ila bi ve\u0107u koli\u010dinu dodatka za oblaganje na finom navoju. Fini navoji imaju vi\u0161e problema sa zalijevanjem i monta\u017eom zbog nakupljanja plo\u010da nego grubi navoji, jer ima manje materijala izme\u0111u svake strane navoja.<\/p>\n<p>Kada koristite umetke za zaklju\u010davanje ili druge pri\u010dvrsne elemente sa navojem, grubi navoji su mnogo manje skloni kidanju nego fini navoji. Fini navoji imaju vi\u0161e rotacija kao \u0161to smo ranije raspravljali, a to zajedno sa bli\u017eim pre\u010dnikom navoja finih navoja pove\u0107ava sklonost finim navojima da do\u017eive kidanje navoja.<\/p>\n<h2><strong><b>Fine Threads<\/b><\/strong><\/h2>\n<p>Vijci s finim navojem ja\u010di su od odgovaraju\u0107ih vijaka s grubim navojem iste tvrdo\u0107e. To je i zatezanje i smicanje zbog vijaka s finim navojem koji imaju ne\u0161to ve\u0107u povr\u0161inu zateznog naprezanja i manji pre\u010dnik.<\/p>\n<p>Fini navoji imaju manju tendenciju popu\u0161tanja pod vibracijama zbog toga \u0161to imaju manji ugao spirale od grubih niti. Zavojnice za dr\u017eanje umetka za zaklju\u010davanje finog navoja su fleksibilnije od zavojnica za dr\u017eanje umetka grubog navoja odgovaraju\u0107e veli\u010dine i manje je vjerovatno da \u0107e uzeti set u uvjetima vibracija.<\/p>\n<p>Fini navoji zbog svog finijeg koraka omogu\u0107avaju finija pode\u0161avanja u onim aplikacijama kojima je potrebna ova karakteristika.<\/p>\n<p>Fini navoji se mogu lak\u0161e urezati u materijale koji se te\u0161ko urezuju i tanke zidove.<\/p>\n<p>Fini navoji zahtijevaju manji moment zatezanja da bi razvili ekvivalentna prednaprezanja odgovaraju\u0107im veli\u010dinama vijaka za grubi navoj.<\/p>\n<h2><strong><b>Rezime<\/b><\/strong><\/h2>\n<p>Obi\u010dno je grub navoj specificiran za ve\u0107inu industrijskih primjena osim ako ne postoji uvjerljiv razlog da se to ne u\u010dini. U vojnim i svemirskim aplikacijama uglavnom se koriste grubi navoji veli\u010dine 8-32 i manje. Na metri\u010dkim pri\u010dvr\u0161\u0107iva\u010dima, uglavnom se naj\u010de\u0161\u0107e koriste grube veli\u010dine, dok su sitniji koraci manje dostupni.<\/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\/bs\/coarse-threads-vs-fine-threads\/\" \/>\n<meta property=\"og:locale\" content=\"bs_BA\" \/>\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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