Menene Roll Foring?
Roll forming tsari ne da ke amfani da saitin nadi da aka ɗora daidai gwargwado don yin ƙarar lankwasawa zuwa tsiri mai ci gaba da ciyar da ƙarfe.Ana ɗora rollers a cikin saiti akan tsayawar jere tare da kowane abin nadi yana kammala ƙaramin mataki ɗaya na tsari. Ana yin nadi a hankali ta amfani da ƙirar fure, wanda ke gano sauye-sauyen jeri zuwa tsiri na ƙarfe.An halicci siffar kowane abin nadi daga sassa ɗaya na ƙirar furen.
Kowane launi a cikin ƙirar furen da ke sama yana kwatanta ɗayan ƙarar lanƙwasa da ake amfani da ita don kammala sashin.Launuka guda ɗaya aikin lanƙwasawa ɗaya ne.Ana amfani da fassarar CAD ko CAM don daidaita tsarin yin nadi domin a iya hana kurakurai ko lahani kafin samarwa.Amfani da aikace-aikacen software, injiniyoyi na iya zaɓar ƙira da bayanan martaba don nadawa ko kusurwoyi na lanƙwasa don ƙirƙirar sabbin geometries ta danna linzamin kwamfutansu.
Tsarin Ƙirƙirar Mirƙira
Kowane mai yin nadi yana da matakai daban-daban don tsarin yin nadi.Ba tare da la'akari da bambance-bambancen ba, akwai saiti na asali matakan duk masu samarwa ke amfani da su.
Tsarin yana farawa da babban nada na takarda wanda zai iya zama daga inch 1 zuwa 30 faɗi da kauri daga 0.012 inch zuwa 0.2 inch.Kafin a iya loda coil, dole ne a shirya don aiwatarwa.
Hanyoyin Ƙirƙirar Roll
A) Lankwasawa
Ana iya amfani da jujjuyawar lanƙwasa don manyan faranti na ƙarfe masu kauri.Rollers uku suna lanƙwasa farantin don samar da lanƙwan da ake so.Wurin da aka sanya na rollers yana ƙayyade ainihin lanƙwasa da kusurwa, wanda ke sarrafawa ta nisa tsakanin rollers.
Mirgine Ƙirƙirar Lankwasawa
B) Girgizar ƙasa
Asalin nau'in nadi shine lokacin da kayan ƙarshen ke da sashin giciye na rectangular.A cikin lallausan mirgina, rollers biyu masu aiki suna jujjuyawa a saɓani dabam-dabam.Ratar da ke tsakanin rollers biyu ya ɗan ƙasa da kauri daga cikin kayan, wanda aka tura ta hanyar juzu'i tsakanin kayan da rollers, wanda ke haɓaka kayan saboda raguwar kauri.Tashin hankali yana iyakance adadin nakasawa a cikin fasfo ɗaya yana yin tafiye-tafiye da yawa dole.
C) Siffar Mirgina/Siffar Siffar Mirgina/Birnin Bayanan Bayani
Juyawa siffa yana yanke siffofi daban-daban a cikin aikin aikin kuma baya haɗa da wani canji a cikin kauri na ƙarfe.Yana samar da sassa masu gyare-gyare kamar tashoshi marasa tsari da datsa.Siffofin da aka kafa sun haɗa da I-beams, L-beams, U tashoshi, da dogo don hanyoyin jirgin ƙasa.
D) Ring Rolling
A cikin mirgina zobe, ana mirgina zobe na ƙaramin diamita workpiece tsakanin rollers biyu don samar da zobe mai girman diamita.Ɗayan abin nadi shine abin nadi, yayin da ɗayan nadi ba ya aiki.Nadi mai kaifi yana tabbatar da cewa ƙarfe zai sami faɗin tsayin daka.Rage nisa na zobe yana ramawa ta hanyar diamita na zobe.Ana amfani da tsari don ƙirƙirar manyan zobba maras kyau.
Radial-axial Ring Rolling Process
E) Rufe Plate
Farantin mirgina inji mirgine zanen gado na karfe a cikin tam siffar Silinda.Abubuwan nau'ikan nau'ikan nau'ikan nau'ikan kayan aikin guda biyu sune ɓarke guda huɗu da kuma roller uku.Tare da nau'in abin nadi guda huɗu, akwai babban abin nadi, abin nadi, da rollers na gefe.Siffar nadi uku tana da duk rollers uku masu samar da matsi tare da biyu a sama da ɗaya a ƙasa.Hoton da ke ƙasa akwai tsarin abin nadi guda huɗu waɗanda ke yin silinda.
Lokacin aikawa: Janairu-04-2022