Welding pụtara maka ịgbado ọkụ ihe n'okpuru kọwaa ọnọdụ maka owuwu nke otu dị ka imewe chọrọ, na ike izute chọrọ nke predetermined ọrụ.Site na ịgbado ọkụ ihe, ịgbado ọkụ, akụrụngwa ụdị na ojiji chọrọ na-emetụta anọ ihe.

Obere carbon ígwè ịgbado ọkụ
N'ihi ọdịnaya carbon nke obere carbon ígwè (dịka ọmụmaatụ: carbon steel pipe), manganese, silicon ọdịnaya dị obere, yabụ na-emekarị agaghị enwe nnukwu ịgbado ọkụ na-emenyụ anụ ahụ ma ọ bụ anụ ahụ siri ike.Low carbon ígwè weld nkwonkwo plasticity na mmetụta siri ike dị mma, ịgbado ọkụ, n'ozuzu na-enweghị preheating, ịchịkwa okpomọkụ na okpomọkụ n'etiti n'ígwé, na-eji post-weld okpomọkụ ọgwụgwọ adịghị mma nzukọ, dum usoro mkpa ọ dịghị pụrụ iche ịgbado ọkụ usoro jikoro, weldability.

Ọkara carbon ígwè ịgbado ọkụ
Akụkụ nke carbon carbon nke 0.25% ~ 0.60% maka ọkara carbon ígwè.Mgbe oke nke carbon na manganese nke ihe fọrọ nke nta ka ọ bụrụ 0.25% adịghị elu, ezigbo weldability.Site na mmụba nke ọdịnaya carbon, weldability ji nwayọọ nwayọọ na-akawanye njọ.Ọ bụrụ na ọdịnaya carbon bụ ihe dịka 0.45%, ma dabere na usoro ịgbado ọkụ nchara dị nro nke a na-eji mgbe mpaghara ọkụ emetụtara nwere ike mepụta martensite kenkuwa, dị mfe ịgbawa, na nguzobe nke mgbawa oyi.Mgbe ịgbado ọkụ, ego nke isi ihe na-agbaze n'ime weld, weld nke mere na carbon ọdịnaya mụbara, na-akwalite thermal cracking na weld, karịsịa mgbe ike ịchịkwa adịghị ọcha nke sọlfọ, yikarịrị.Nke a mgbape na-enwe mmetụta karị na olulu na nkesa nke okpomọkụ na weld cracking na scaly otú wavy ahịrị perpendicular na weld.

Akwa carbon ígwè ịgbado ọkụ
Mgbe elu-carbon ígwè carbon ọdịnaya bụ ukwuu karịa 0,60%, hardening, ịgbado ọkụ mgbape uche mgbe ọchịchọ bụ ukwuu na ya mere ogbenye weldability, ike ga-eji na mmepụta nke welded owuwu.Ọ dị mkpa ka a na-ejikarị eme ihe na-emepụta ike ma ọ bụ abrasion nke akụkụ na akụkụ, ọrụ ịgbado ọkụ bụ nrụzi ịgbado ọkụ.N'ihi na elu tensile ike carbon ígwè ukwuu n'ime na 675MPa ma ọ bụ karịa, otú ahụ nkịtị electrode nlereanya E7015, E6015, nwere ike họrọ E5016, E5015 electrode Ọdịdị mgbe òtù na-arịọ maka ukwuu.Na mgbakwunye, anyị nwere ike iji chrome-nickel austenitic ígwè electrodes maka ịgbado ọkụ.N'ihi akụkụ dị elu nke carbon ígwè iji nweta ike siri ike ma na-eyi nkwụsi ike, ihe ahụ n'onwe ya na-edozi ọgwụgwọ okpomọkụ, ịgbado ọkụ kwesịrị tupu ya annealing ya ka welded.Kwesịrị ime tupu ịgbado ọkụ preheat, na preheat okpomọkụ bụ n'ozuzu n'elu 250 ~ 350 ℃, ịgbado ọkụ usoro ekwesịghị ịbụ ala karịa okpomọkụ nke ejide oyi akwa n'etiti preheating okpomọkụ.Weldments mgbe ịgbado ọkụ chọrọ ngwa ngwa jụrụ okpomọkụ na ozugbo banye n'ọkụ na 650 ℃ maka nchegbu enyemaka okpomọkụ ọgwụgwọ.