A karkashin sanyi yanayi low-carbon karfe waldi, da sanyaya kudi na welded hadin gwiwa, wanda ya sanya fatattaka hali ya karu, musamman a farkon weld Heavy Tsarin mai saukin kamuwa da fatattaka, shi wajibi ne a dauki wadannan matakai na tsari:

1) Ba zai yiwu ba a ƙarƙashin yanayin ƙarancin zafin jiki na lankwasawa, gyare-gyare da welding taro.

2) Preheat, 16Mn m karfe bututu waldi tsari tsananin kiyaye interlayer zafin jiki kada fada kasa da preheating zafin jiki.

3) Hydrogen ko ultra-low hydrogen waldi.

4) Dole ne a kammala dukkan ɗinkin ɗinkin ci gaba da walda don guje wa katsewa.

5) A lokacin da saka waldi ƙara waldi halin yanzu, waldi gudun slows saukar, saboda ƙara tack welds giciye-section yankin da tsawon, preheated idan ya cancanta.

6) Ba za a yi a kan wani tushe abu arc tsagi surface wanin bukatar cika ramin lokacin da bacewar.