{"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\/pt\/coarse-threads-vs-fine-threads\/","title":{"rendered":"Fios grossos vs. fios finos"},"content":{"rendered":"<p>O que \u00e9 melhor, roscas grossas ou finas? Esta \u00e9 uma pergunta frequentemente ouvida em nossa empresa em rela\u00e7\u00e3o a insertos e fixadores com rosca macho, e \u00e9 nossa opini\u00e3o que roscas grossas t\u00eam muitas vantagens e benef\u00edcios sobre roscas finas.<\/p>\n<h2><strong><b>Fios Grossos<\/b><\/strong><\/h2>\n<p>Roscas grossas s\u00e3o mais dur\u00e1veis e t\u00eam maior resist\u00eancia a descascamento e enfiamento cruzado. A altura de cada rosca \u00e9 maior do que a rosca fina correspondente, ent\u00e3o h\u00e1 mais material entre cada rosca, tornando o engate do flanco maior.<\/p>\n<p>Roscas grossas s\u00e3o menos suscet\u00edveis a cortes ou danos, ent\u00e3o elas n\u00e3o precisam ser \u201cmanuseadas com cuidado\u201d tanto quanto as finas. Um corte em uma rosca fina pode causar mais problemas proporcionalmente devido \u00e0 superficialidade da rosca, por exemplo, calibra\u00e7\u00e3o ou montagem.<\/p>\n<p>Os fixadores com rosca grossa s\u00e3o instalados muito mais r\u00e1pido do que os fixadores com rosca fina. Um parafuso de 1\/2\u201d-13 UNC \u00e9 montado em 65% do tempo que levaria para montar um parafuso de 1\/2\u201d-20 UNF. O parafuso de 1\/2\u201d-20 UNF avan\u00e7a uma polegada em 20 revolu\u00e7\u00f5es, enquanto o parafuso de 1\/2\u201d-13 UNC avan\u00e7a uma polegada em apenas 13 revolu\u00e7\u00f5es.<\/p>\n<p>Roscas grossas n\u00e3o s\u00e3o afetadas pelo ac\u00famulo de revestimento tanto quanto as finas. A mesma quantidade de revestimento em uma rosca grossa usaria uma quantidade maior de margem de revestimento em uma rosca fina. Roscas finas apresentam mais problemas de calibragem e montagem devido ao ac\u00famulo de revestimento do que as grossas, pois h\u00e1 menos material entre cada flanco da rosca.<\/p>\n<p>Ao usar insertos de travamento ou outros fixadores roscados, as roscas grossas t\u00eam muito menos probabilidade de sofrer escoria\u00e7\u00f5es do que as roscas finas. As roscas finas t\u00eam mais rota\u00e7\u00f5es, como discutimos anteriormente, e isso, juntamente com os ajustes de di\u00e2metro de passo mais pr\u00f3ximos das roscas finas, aumenta a tend\u00eancia das roscas finas sofrerem escoria\u00e7\u00f5es.<\/p>\n<h2><strong><b>Fios finos<\/b><\/strong><\/h2>\n<p>Parafusos de rosca fina s\u00e3o mais fortes do que os parafusos de rosca grossa correspondentes da mesma dureza. Isso ocorre tanto em tens\u00e3o quanto em cisalhamento devido aos parafusos de rosca fina terem uma \u00e1rea de tens\u00e3o de tra\u00e7\u00e3o ligeiramente maior e di\u00e2metro menor.<\/p>\n<p>Roscas finas t\u00eam menos tend\u00eancia a se soltar sob vibra\u00e7\u00e3o devido a terem um \u00e2ngulo de h\u00e9lice menor do que as roscas grossas. Bobinas de aperto de Inserto de Travamento de rosca fina s\u00e3o mais flex\u00edveis do que bobinas de aperto de tamanho correspondente de inserto de rosca grossa e s\u00e3o menos propensas a se ajustar sob condi\u00e7\u00f5es de vibra\u00e7\u00e3o.<\/p>\n<p>Roscas finas, devido ao seu passo mais fino, permitem ajustes mais finos nas aplica\u00e7\u00f5es que necessitam dessa caracter\u00edstica.<\/p>\n<p>Roscas finas podem ser rosqueadas mais facilmente em materiais dif\u00edceis de rosquear e em se\u00e7\u00f5es de paredes finas.<\/p>\n<p>Roscas finas exigem menos torque de aperto para desenvolver pr\u00e9-cargas equivalentes aos tamanhos de parafusos de rosca grossa correspondentes.<\/p>\n<h2><strong><b>Resumo<\/b><\/strong><\/h2>\n<p>Normalmente, uma rosca grossa \u00e9 especificada para a maioria das aplica\u00e7\u00f5es industriais, a menos que haja uma raz\u00e3o convincente para n\u00e3o faz\u00ea-lo. Aplica\u00e7\u00f5es militares e aeroespaciais geralmente usam roscas grossas em tamanhos 8-32 e menores. Em fixadores m\u00e9tricos, geralmente os tamanhos grossos s\u00e3o os mais comumente usados, com os passos mais finos sendo menos prontamente dispon\u00edveis.<\/p>","protected":false},"excerpt":{"rendered":"<p>O que \u00e9 melhor, roscas grossas ou finas? Esta \u00e9 uma pergunta frequentemente ouvida em nossa empresa em rela\u00e7\u00e3o a insertos e fixadores com rosca macho, e \u00e9 nossa opini\u00e3o que roscas grossas t\u00eam muitas vantagens e benef\u00edcios sobre roscas finas. Roscas grossas Roscas grossas s\u00e3o mais dur\u00e1veis e t\u00eam maior resist\u00eancia a descascamento e rosqueamento cruzado. [\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\/pt\/coarse-threads-vs-fine-threads\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\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? 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