焊前預熱 的英文怎麼說
中文拼音 [hànqiányùrè]
焊前預熱
英文
weld preheating-
Before repairing, basing on the actual working condition, concerning the weldability, stress and deformation issues, the scheme of the cold welding technology whose essential being gtaw, low temperature preheating, postweld hammer the welded seam was established
修理前，圍繞兼顧解決焊接性、應力和變形問題，結合實際施工條件制定了以手工鎢極氬弧焊、鎳基焊絲、焊前低溫預熱、焊后錘擊焊縫為要素的冷堆焊工藝。Wdl is a certain steel which has lower sensitivity to weld cold crack and need not or a little warm - up before weld
國產wdl鋼種是一種對焊接冷裂紋敏感性低、焊接前不要預熱或稍加預熱而不產生焊接冷裂紋的鋼板。
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