Iziphene ezinokuthi zenzeke kwindawo ye-arc welding ephantsi kwamanzi ziquka ii-pores, ii-cracks ze-thermal, kunye ne-undercuts. 1. Amaqamza. Amaqamza avela kumbindi we weld. Isizathu esona sizathu kukuba i-hydrogen isafihliwe kwintsimbi edibeneyo ngendlela yamaqamza. Ke ngoko, amanyathelo okuphelisa...
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