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28.7. Tsis muaj fusion thiab tsis tiav kev nkag siab nkag tsis taus?

Thaum lub sij hawm vuam txheej txheem, muaj ib feem ntawm cov hlau phaj uas tsis muaj tus pas nrig vuam, uas tuaj yeem ua rau muaj kev tsis txaus siab lossis tsis muaj fusion thaum lub sij hawm vuam. Lub tiav tsis tiav qhov tsis muaj qhov tseeb tsuas yog tshwm sim ntawm lub hauv paus ntawm welded sib koom ua ke, tshwj xeeb tshaj yog thaum cov tuab ntawm cov phaj tsis tiav lawm, ua kom tsis tiav qhov tshwm sim. Nyob rau hauv lub vuam txheej txheem ntawm kauv hlau kav, qhov tsis muaj fusion yuav tshwm sim hauv ib feem ntawm Weld. Nws tuaj yeem pom tau tias kev nkag tsis tiav thiab tsis muaj qhov tsis xws luag