Nco ntsoov ntawm kev siv vuam vias flange

Nco ntsoov ntawm kev siv vuam vias flange:
1. Txhawm rau tiv thaiv qhov xeb ntawm qhov muag vim qhov cua sov ntawm flange npog, lub vuam tam sim no yuav tsum tsis txhob loj heev, tsawg dua 20% dua li cov pa roj carbon steel electrode, arc yuav tsum tsis txhob ntev dhau, txheej yog cauj txias, thiab lub vuam weld nqaj yog haum.
2. Lub tshuab hluav taws xob yuav tsum ceev kom qhuav thaum siv. Cov titanium calcium hom yuav tsum ceev cia hauv 150 ° C rau 1 teev. Qhov qis hom tshuaj hydrogen no yuav tsum tau ceev nyob rau ntawm 200-250 ° C rau 1 teev kom tiv thaiv cov txheej txheem electrode los ntawm txhawm rau roj thiab lwm cov av, kom tsis txhob ua rau cov weld seam. Ua kom muaj cov pa roj carbon ntau ntxiv thiab cuam tshuam rau qhov tsis zoo ntawm kev sib dhos.