1. Dab tsi yog daim ntawv thov ntawm welded kav hauv kev tsim kho?
Siv rau:
Scaffolding kav
Piling
Steel qauv kab
Cov kav dej thiab hluav taws
2. Daim ntawv thov hauv nroog engineering yog dab tsi?
Cov kav dej kav dej
Cov dej phwj tuaj
Lub nroog gas pipelines
Cable casing
3. Dab tsi yog weld hlaws?
Weld hlaws yog cov hlau tsa uas tsim los ntawm qhov vuam seam. Nws yuav tsum du thiab tsis xws luag -dawb.
4. Dab tsi yog weld nkag mus?
Kev nkag mus txhais tau hais tias cov hlau weld siab nkag mus rau hauv cov yeeb nkab phab ntsa. Kev nkag mus tsis tiav yog qhov tsis xws luag.
5. Dab tsi ua rau cov yeeb nkab ovality?
Ua rau:
Kev tsim tsis ruaj khov
Kev txias txias tsis sib xws
Kev thauj mus los tsis raug lossis kev teeb tsa
