{"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\/cy\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/","title":{"rendered":"Beth yw'r gwahaniaeth rhwng bollt ag edafedd rholio ac un gydag edafedd wedi'i dorri?"},"content":{"rendered":"

Edau o glymwr mecanyddol, ni waeth a yw'n a\u00a0bollt pen<\/u>,\u00a0gwialen<\/u>, neu\u00a0siopa tu mewn<\/u>, gellir ei gynhyrchu trwy dorri neu rolio. Disgrifir gwahaniaethau, camsyniadau, manteision ac anfanteision pob dull isod.<\/p>\n

Trywyddau Rholio<\/b><\/strong><\/h3>\n

Mae edafu rholiau yn broses lle mae dur yn cael ei allwthio i ffurfio rhan edafeddog clymwr, yn hytrach na'i dynnu fel mewn edafu wedi'i dorri. Yn y broses hon, mae bollt yn cael ei gynhyrchu o far crwn \u00e2 diamedr llai. Er enghraifft, mae bollt 1\u2033 mewn diamedr yn cael ei gynhyrchu o far crwn diamedr .912. Mae'r deunydd \u201cdiamedr traw\u201d hwn tua'r pwynt canol rhwng diamedr mawr (copaon) a diamedr bychan (cymoedd) yr edafedd. Mae'r bollt yn cael ei \u201crholio\u201d trwy set o farw edafu sy'n dadleoli'r dur ac yn ffurfio'r edafedd. Y canlyniad terfynol yw clymwr gyda darn edafedd llawn 1\u2033 mewn diamedr ond diamedr corff llai (.912). Mae edafu rholiau yn broses hynod o effeithlon ac yn aml yn arwain at arbedion cost sylweddol. Felly, bydd Portland Bolt yn rholio edafedd pryd bynnag y bo modd.<\/p>\n

 <\/p>\n

Yn dechnegol, gellir cynhyrchu unrhyw fanyleb ac eithrio bolltau strwythurol A325 ac A490 gyda chorff llai ac edafedd rholio.<\/p>\n

 <\/p>\n

Bydd bollt gyda chorff llai yn wannach na bollt gyda chorff maint llawn.<\/p>\n

Ardal wannaf unrhyw glymwr mecanyddol yw diamedr bychan yr edafedd. Gan fod dimensiynau edau edau wedi'u torri a chlymwr edau rholio yn union yr un fath, nid oes unrhyw wahaniaeth o gwbl mewn cryfder. Gellid dadlau mewn gwirionedd y gall y caledu gwaith sy'n digwydd yn ystod y broses edafu rholiau hyd yn oed wneud y clymwr ag edafedd rholio yn gryfach. Yn ogystal, mae edafu wedi'i dorri'n torri ar draws strwythur grawn naturiol y bar crwn tra bod edafu rholio yn ei ddiwygio. Gellid dadlau eto y gall torri i mewn i raen bar crwn wrth edafu wedi'i dorri gynhyrchu edafedd sydd \u00e2 llai o gyfanrwydd strwythurol na rhan sydd wedi'i rholio edafu.<\/p>\n

Manteision Threading Roll<\/i><\/em><\/p>\n

    \n
  1. Mae amseroedd llafur sylweddol fyrrach yn golygu costau is.<\/li>\n
  2. Oherwydd bod gan bollt edafedd rholio ddiamedr corff llai, mae'n pwyso llai na'i gorff llawn Mae'r gostyngiad pwysau hwn yn lleihau cost y dur, galfaneiddio, trin \u00e2 gwres, platio, cludo nwyddau, ac unrhyw gostau eraill sy'n gysylltiedig \u00e2'r clymwr sy'n seiliedig ar bwysau.<\/li>\n
  3. Mae gweithio oer yn gwneud edafedd yn fwy gwrthsefyll difrod wrth eu trin.<\/li>\n
  4. Mae edafedd wedi'i rolio yn aml yn llyfnach oherwydd effaith llosg y gweithrediad treigl.<\/li>\n<\/ol>\n

    \u00a0<\/i><\/em><\/p>\n

    Anfanteision Trywydd Rholio<\/i><\/em><\/p>\n

      \n
    1. Mae argaeledd bar crwn diamedr traw yn gyfyngedig ar gyfer rhai graddau deunydd.<\/li>\n<\/ol>\n

      \u00a0<\/i><\/em><\/p>\n

      \u00a0<\/i><\/em><\/p>\n

      Torri Trywyddau<\/b><\/strong><\/h3>\n

      Mae edafu wedi'i dorri yn broses lle mae dur yn cael ei dorri i ffwrdd, neu ei dynnu'n gorfforol, o far crwn o ddur i ffurfio'r edafedd. Mae bollt 1\u2033 diamedr, er enghraifft, yn cael ei gynhyrchu trwy dorri edafedd i gorff llawn diamedr 1\u2033 o'r bollt.<\/p>\n

      Manteision Threading Torri<\/i><\/em><\/p>\n

        \n
      1. Ychydig o gyfyngiadau o ran diamedr a hyd edau.<\/li>\n
      2. Gellir cynhyrchu pob manyleb ag edafedd wedi'i dorri.<\/li>\n<\/ol>\n

         <\/p>\n

        Anfanteision Threading Torri<\/i><\/em><\/p>\n

        Mae amseroedd llafur sylweddol hirach yn golygu costau uwch.<\/p>","protected":false},"excerpt":{"rendered":"

        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":"\nWhat 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\/cy\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\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. 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 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ylfastener.com\/cy\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\" \/>\n<meta property=\"og:site_name\" content=\"HANDAN YANLANG FASTENER CO., LTD\" \/>\n<meta property=\"article:published_time\" content=\"2025-01-06T03:24:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-06T03:25:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ylfastener.com\/wp-content\/uploads\/2024\/12\/20230220165201267.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"437\" \/>\n\t<meta property=\"og:image:height\" content=\"245\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 funud\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.ylfastener.com\/#\/schema\/person\/6c326a47e95f6824b65a22ff33f53a9c\"},\"headline\":\"What is the difference between a bolt with rolled threads and one with cut threads?\",\"datePublished\":\"2025-01-06T03:24:37+00:00\",\"dateModified\":\"2025-01-06T03:25:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\"},\"wordCount\":502,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.ylfastener.com\/#organization\"},\"articleSection\":[\"Technical\"],\"inLanguage\":\"cy\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\",\"url\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\",\"name\":\"What is the difference between a bolt with rolled threads and one with cut threads? 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