A fanninbututun ƙarfe, ƙa'idodin bututun ƙarfe madaidaiciya da aka haɗa da arc welded suna da mahimmanci. Ɗaya daga cikin ƙa'idodin shine GB/T3091-2008, wanda ya shafi nau'ikan bututun ƙarfe madaidaiciya, kamar juriya mai yawa-mita.bututun ƙarfe da aka walda (ERW), bakin da ke nutsewabututun ƙarfe da aka haɗa (SAWL)da bututun ƙarfe da aka haɗa da bututun ƙarfe mai kauri (SAWH).
Don jigilar ruwa mai ƙarancin matsin lamba, GB/T3091-2008 ya kuma ƙayyade amfani dabututun ƙarfe mai walda da galvanizedAna amfani da waɗannan bututun ƙarfe masu walda ta lantarki, waɗanda aka fi sani da fararen bututu, don jigilar ruwa, iska, iska, mai, tururi mai dumama, ruwan ɗumi, da sauransu. An bayyana ƙayyadaddun waɗannan bututun ƙarfe a cikin diamita na musamman, kuma diamita na waje da kauri na bango sun bi ƙa'idodin GB/T21835. Bugu da ƙari, tsawon bututun ƙarfe na iya kasancewa daga 300mm zuwa 1200mm, kuma ana iya daidaita shi tsawonsa ko tsawonsa biyu.
Idan ana maganar matsalolin inganci, zafin jiki a lokacin huda yana da babban tasiri. Bututun ƙarfe na faɗaɗa zafi yawanci suna kaiwa yanayin zafi kusan 1200°C, kodayake abubuwan da ke cikin carbon da abubuwan da ke haɗa ƙarfe na iya rage yanayin zafi kaɗan. Wani muhimmin al'amari da za a yi la'akari da shi shine rage yawan sikelin yayin lanƙwasawa mai zafi, domin wannan na iya shafar rayuwar kayan aiki da ingancin saman.
Aikin dumama muhimmin tsari ne wajen samar dabututun ƙarfe mai kauri 16Mn madaidaiciyaTunda yawancin sarrafawa suna faruwa ne a yanayin zafi, daidaitaccen tsarin kula da zafin jiki yana da mahimmanci don tabbatar da ingancin samfurin ƙarshe.
Domin kiyaye inganci da ƙa'idodi, sarrafa zafin jiki yayin sarrafa huda yana da matuƙar muhimmanci. Tsarin bututun ƙarfe na madaidaiciya na GB/T3091-2008 yana ƙayyade bambance-bambancen da aka yarda a girma, siffa, nauyi da diamita na waje da kauri bango. Bambancin da aka yarda da kauri na bango mai daidaito ya bambanta dangane da matakin karkacewa, daga S1 zuwa S5, kuma kowane mataki yana ƙayyade kashi da ya dace da kuma mafi ƙarancin karkacewa.
Baya ga jurewar kauri na bango da aka daidaita, ana kuma la'akari da jurewar kauri na bango da ba a daidaita ba. Matakan karkacewa (misali NS1 zuwa NS4) sun haɗa da takamaiman karkacewar kashi don tabbatar da ingancin sarrafawa. Ya kamata a lura cewa S yana wakiltar kauri na bango na bututun ƙarfe, kuma D yana wakiltar diamita na waje na bututun ƙarfe.
Tabbatar da bin waɗannan ƙa'idodi yana da matuƙar muhimmanci wajen samar da bututun ƙarfe masu inganci masu tsayin tsayi waɗanda aka yi da walda a ƙarƙashin ruwa. Ta hanyar kiyaye daidaitaccen iko kan zafin jiki da kuma kula da karkacewar da aka yarda, masana'antun za su iya biyan buƙatun abokan ciniki da kuma samar da samfura masu inganci da dorewa.
Lokacin Saƙo: Nuwamba-10-2023