Mara kyauERW karfe bututuan kasu kashi-kashi na geometric maras sumul da na zahiri.Geometric sumul na ERW karfe bututu ne don cire ciki da kuma waje burrs.

Tun da tsarin tsarin cirewa na ciki da kayan aiki na ci gaba da ingantawa da kuma cikakke, matsakaici da babban diamita na bututun ƙarfe a cikin cire burr ya kasance mai kyau.A cikin burr za a iya sarrafawa a -0.2mm ~ + O.5mm haka.Yana nufin microstructure na jiki maras nauyi a ciki, akwai bambanci tsakanin kayan tushe da yanki na weld wanda ya haifar da raguwar kaddarorin inji, buƙatar ɗaukar matakan da za a sa shi daidai da daidaiton fasaha.ERW karfe bututu ne ga high-mita waldi thermal tsari da kuma haifar da wani zafin jiki gradient, wanda yake kusa da gefen tube da forming wani narkakkar yankin, da Semi-narkakkar yankin, overheating nama, al'ada yankin, yankunan ba cikakken normalizing, tempering zones. na yankin fasalin.Wanne overheated zone tissue saboda soldering zafin jiki sama da 1000℃, Austenite hatsi girma da ban mamaki a cikin sanyaya yanayi zai samar da wani wuya da gaggautsa m crystalline lokaci, ban da gaban wani zafin jiki gradient zai samar da walda danniya.Don haka, samuwar yankin weld ƙasa da kaddarorin kayan aikin ƙarfe na yanayin yanayin shine ta hanyar tsarin jiyya na walƙiya mara ƙarfi wanda ke amfani da na'urar dumama na al'ada ta gida za ta kasance mai zafi zuwa AC3 (927).℃), sannan tsayin 60m, saurin 20m / min yayin sanyaya iska, sanyaya ruwa lokacin da ya cancanta.Ana amfani da wannan hanyar don cimma nasarar kawar da damuwa, tausasa da kuma tsaftace ƙungiyar don inganta kayan aikin injiniya na HAZ.A halin yanzu, na'urar ERW ta ci gaba ta duniya an yi amfani da ita sosai don sarrafa walda ta sami sakamako mai kyau.Quality ba za a iya jãyayya da cewa ba kawai ERW bututu welds da weld coefficient na 1, gane da kungiyoyin yanki na weld da tushe karfe na wasan.