{"id":807,"date":"2025-01-06T03:24:37","date_gmt":"2025-01-06T03:24:37","guid":{"rendered":"https:\/\/www.ylfastener.com\/?p=807"},"modified":"2025-01-06T03:25:25","modified_gmt":"2025-01-06T03:25:25","slug":"what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads","status":"publish","type":"post","link":"https:\/\/www.ylfastener.com\/ca\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/","title":{"rendered":"Quina difer\u00e8ncia hi ha entre un cargol amb fils enrotllats i un altre amb fils tallats?"},"content":{"rendered":"<p>Rosques d'un fixador mec\u00e0nic, independentment de si es tracta d'un\u00a0<u>parabolt de cap<\/u>,\u00a0<u>vareta<\/u>, o\u00a0<u>comprar dins<\/u>, es pot produir tallant o enrotllant. A continuaci\u00f3 es descriuen les difer\u00e8ncies, idees err\u00f2nies, avantatges i desavantatges de cada m\u00e8tode.<\/p>\n<h3><strong><b>Fils enrotllats<\/b><\/strong><\/h3>\n<p>El roscat de rotlles \u00e9s un proc\u00e9s pel qual s'extrudeix l'acer per formar la part roscada d'un element de fixaci\u00f3, en lloc d'eliminar-se com en el roscat tallat. En aquest proc\u00e9s, es fa un cargol a partir d'una barra rodona de di\u00e0metre redu\u00eft. Per exemple, un cargol d'1 polzada de di\u00e0metre es fabrica amb una barra rodona de 0,912 polzades de di\u00e0metre. Aquest material de \"di\u00e0metre de pas\" \u00e9s aproximadament el punt mitj\u00e0 entre el di\u00e0metre principal (pics) i el di\u00e0metre menor (valls) dels fils. El cargol s'\"enrotlla\" a trav\u00e9s d'un conjunt de matrius de rosca que despla\u00e7a l'acer i forma els fils. El resultat final \u00e9s un fixador amb una part roscada completa d'1 polzada de di\u00e0metre per\u00f2 un di\u00e0metre corporal redu\u00eft (.912). El roscat de rotlles \u00e9s un proc\u00e9s extremadament eficient i sovint comporta un estalvi de costos important. Per tant, Portland Bolt rodar\u00e0 fils sempre que sigui possible.<\/p>\n<p>&nbsp;<\/p>\n<p>T\u00e8cnicament, qualsevol especificaci\u00f3 amb l'excepci\u00f3 dels cargols estructurals A325 i A490 es pot produir amb un cos redu\u00eft i fils enrotllats.<\/p>\n<p>&nbsp;<\/p>\n<p>Un cargol amb un cos redu\u00eft ser\u00e0 m\u00e9s feble que un cargol amb un cos de mida completa.<\/p>\n<p>La zona m\u00e9s feble de qualsevol fixaci\u00f3 mec\u00e0nica \u00e9s el di\u00e0metre menor dels fils. Com que les dimensions del fil d'un fil tallat i d'un subjectador de fil enrotllat s\u00f3n id\u00e8ntiques, no hi ha absolutament cap difer\u00e8ncia de for\u00e7a. En realitat, es podria argumentar que l'enduriment del treball que es produeix durant el proc\u00e9s d'enroscat del rotllo fins i tot pot fer que el fixador amb fils enrotllats sigui m\u00e9s fort. A m\u00e9s, el roscat tallat interromp l'estructura natural del gra de la barra rodona, mentre que el roscat del rodet la reforma. Es podria tornar a argumentar que tallar el gra d'una barra rodona quan es talla el fil pot produir fils que tenen menys integritat estructural que una pe\u00e7a que s'ha roscat en rotllo.<\/p>\n<p><em><i>Avantatges del roscat de rotlles<\/i><\/em><\/p>\n<ol>\n<li>Temps de treball significativament m\u00e9s curts significa costos m\u00e9s baixos.<\/li>\n<li>Com que un cargol roscat en rotlle t\u00e9 un di\u00e0metre del cos m\u00e9s petit, pesa menys que el seu cos complet. Aquesta reducci\u00f3 de pes redueix el cost de l'acer, galvanitzaci\u00f3, tractament t\u00e8rmic, revestiment, transport i qualsevol altre cost associat amb la fixaci\u00f3 que es basen en el pes.<\/li>\n<li>El treball en fred fa que els fils siguin m\u00e9s resistents als danys durant la manipulaci\u00f3.<\/li>\n<li>Els fils enrotllats solen ser m\u00e9s llisos a causa de l'efecte de brunyit de l'operaci\u00f3 de laminaci\u00f3.<\/li>\n<\/ol>\n<p><em><i>\u00a0<\/i><\/em><\/p>\n<p><em><i>Inconvenients de l'enroscat de rotlles<\/i><\/em><\/p>\n<ol>\n<li>La disponibilitat de barra rodona de di\u00e0metre de pas est\u00e0 limitada per a determinades qualitats de material.<\/li>\n<\/ol>\n<p><em><i>\u00a0<\/i><\/em><\/p>\n<p><em><i>\u00a0<\/i><\/em><\/p>\n<h3><strong><b>Tallar fils<\/b><\/strong><\/h3>\n<p>El tall de rosca \u00e9s un proc\u00e9s pel qual l'acer es talla, o s'elimina f\u00edsicament, d'una barra rodona d'acer per formar els fils. Un cargol d'1 polzada de di\u00e0metre, per exemple, es produeix tallant fils en un cos complet d'1 polzada de di\u00e0metre del cargol.<\/p>\n<p><em><i>Avantatges del fil tallat<\/i><\/em><\/p>\n<ol>\n<li>Poques limitacions pel que fa al di\u00e0metre i la longitud del fil.<\/li>\n<li>Totes les especificacions es poden fabricar amb fils tallats.<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p><em><i>Desavantatges del tall de fil<\/i><\/em><\/p>\n<p>Temps de treball significativament m\u00e9s llargs significa costos m\u00e9s elevats.<\/p>","protected":false},"excerpt":{"rendered":"<p>Threads of a mechanical fastener, regardless of whether it is a\u00a0headed bolt,\u00a0rod, or\u00a0bent bolt, can be produced by either cutting or rolling. The differences, misconceptions, advantages, and disadvantages of each method are described below. Rolled Threads Roll threading is a process by which steel is extruded to form the threaded portion of a fastener, instead [\u2026]<\/p>","protected":false},"author":1,"featured_media":335,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-807","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>What is the difference between a bolt with rolled threads and one with cut 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\/ca\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the difference between a bolt with rolled threads and one with cut threads? - HANDAN YANLANG FASTENER CO., LTD\" \/>\n<meta property=\"og:description\" content=\"Threads of a mechanical fastener, regardless of whether it is a\u00a0headed bolt,\u00a0rod, or\u00a0bent bolt, can be produced by either cutting or rolling. 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