Bambanci tsakanin zafi shimfiɗa rage bututu da LSAW karfe bututu ne m yana da wadannan maki biyu:
1, Sakamakon da bambanci a kan ingancin samfur saboda daban-daban matakai, zafi mikewa rage kuma za'ayi wani tsari bayan high-mita waldi tsari da lsaw karfe bututu ba zai iya samu -- Longitudinal ba bayyananne line ciki da kuma waje burrs. Kasancewar Burr zai shafi ruwan bututu - kwarara, burr yana toshe ruwa na yau da kullun, yana haifar da guguwa. Dangane da ka'idodin injiniyoyi na ruwa, waldi dole ne ya haɓaka matsawa na gida, dakatarwar sa bututun aminci factor kuma an rage shi sosai, shimfidar zafi yana rage tsarin samar da ƙarfe - cikakken la'akari da kasancewar haɗarin burrs, don iyakance cire burr, sanya shi uniform. kauri, babu bambanci a cikin bayyanar da sumul. Don haka daga wannan ra'ayi, zafi mai zafi yana rage haɗin gwiwar bututun kuma ya kammala canjin yanayi mara kyau.

2, Weld ingancin kai tsaye kayyade ingancin welded bututu, sumul bututu ne welded da mafi girma bambanci karya. Dogayen bayan da high-mita waldi, madaidaiciya kabu kafa carbon ba za a iya kawar, weld da iyaye kawai tare tare da ba gaba daya fused cikin daya - ba zai iya jure gwajin lokaci da matsa lamba. Hot stretch rage high-mita waldi karfe bututu bayan dumama zuwa ta hanyar dukan, da overall annealing zafin jiki na 800 digiri, sa'an nan bude canji tsari, bayan da jerin matakai, da walda da iyaye kungiyar yi - ya kasance iri daya ga cikakken narkewa, da kyau an yi daga kabu zuwa canji maras kyau.