Ukushisela kusho izinto zokushisela ngaphansi kwezimo ezichaziwe zokwakhiwa kwelungu ngokwezidingo zokuklama, kanye nekhono lokuhlangabezana nezidingo zenkonzo enqunywe kusengaphambili.Ngokufaka izinto zokushisela, ukushisela, uhlobo lwengxenye kanye nezidingo zokusebenzisa ezithinta izici ezine.

I-low carbon steel welding
Ngenxa yokuqukethwe kwekhabhoni yensimbi enekhabhoni ephansi (isb: ipayipi lensimbi ye-carbon), i-manganese, okuqukethwe kwe-silicon kuncane, ngakho ngokuvamile ngeke kube nokushisela okunamandla okucisha izicubu eziqinile noma izicubu.I-carbon steel weld joint joints plasticity kanye nokuqina komthelela kuhle, ukushisela, ngokuvamile ngaphandle kokushisa, ukulawula izinga lokushisa nokushisa phakathi kwezingqimba, usebenzisa ukwelashwa kokushisa kwe-post-weld akuthuthukisi inhlangano, yonke inqubo ayidingi ukuthatha izinyathelo ezikhethekile zenqubo yokushisela, ukushisela.

Medium carbon steel welding
Ingxenye ye-carbon mass engu-0.25% ~ 0.60% yensimbi ye-carbon steel.Lapho ingxenye enkulu yekhabhoni ne-manganese ecishe ibe ngu-0.25% ingephezulu, i-weldability enhle.Ngokukhula kokuqukethwe kwekhabhoni, ukushisela kwehla kancane kancane.Uma okuqukethwe kwekhabhoni kucishe kube ngu-0.45%, kuyilapho kusekelwe phezu kwenqubo yokushisela yensimbi emnene esetshenziswa lapho endaweni ethintekile ekushiseni kungase kukhiqize i-brittle martensite, kulula ukuqhekeka, ukuthi ukwakheka kokuqhekeka okubandayo.Lapho Welding, inani base material liyancibilika zibe weld, i-weld ukuze okuqukethwe carbon anda, ukukhuthaza ngokuqhekeka ezishisayo in the weld, ikakhulukazi lapho ukulawula okuqinile ukungcola isulfure, kungenzeka kakhulu.Lo mfantu uzwela kakhulu ku-crater ekusabalaliseni ukushisa ekuqhekekeni kwe-weld kanye nemigqa yama-scaly e-wavy perpendicular to the weld.

High carbon steel welding
Lapho okuqukethwe kwekhabhoni yensimbi enekhabhoni ephezulu kungaphezu kuka-0.60%, ukuqina, ukuzwela kwe-welding crack ngemuva kokuthambekela kukhulu futhi ngenxa yalokho ukushisela okungekuhle, akukwazi ukusetshenziswa ekwenzeni izakhiwo ezishiselwe.Kudingeka ukuthi kusetshenziswe kakhudlwana ekwakhiweni kobulukhuni noma ukuhuzuka kwezingxenye nezingxenye, umsebenzi wokushisela ngokuyinhloko ulungisa ukushisela.Ngenxa yamandla aqinile we-carbon steel ikakhulukazi ku-675MPa noma ngaphezulu, ngakho imodeli evamile ye-electrode E7015, E6015, ingakhetha u-E5016, ukwakheka kwe-electrode E5015 lapho amalungu ecela okuningi.Ngaphezu kwalokho, singasebenzisa i-chrome-nickel austenitic steel electrode ukushisela.Ngenxa yezingxenye eziphezulu ze-carbon steel ukuze kutholwe ubulukhuni obuphezulu nokumelana nokugqoka, impahla ngokwayo ingaphansi kokwelashwa kokushisa, i-welding kufanele yandulelwe ngokuyi-anneal ukuze i-welded.Kufanele kwenziwe ngaphambi kwe-welding preheat, izinga lokushisa lokufudumala livame ukuba ngaphezu kuka-250 ~ 350 ℃, inqubo yokushisela akumele ibe ngaphansi kwezinga lokushisa longqimba lokubamba phakathi kokushisa okushisa.Ukushisela ngemva kokushisela kwakudinga ukushisa okupholile okupholile futhi ngokushesha kungene esithandweni ku-650 ℃ ukuze kutholakale ukwelashwa kokushisa kwengcindezi.