It is shown that the steel has excellent cold crack resistant ability.
试验表明该钢具有优良的抗冷裂性能.
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When the gap of butt joint increases, cold crack rate gradually decreases.
随着接头间隙的增大, 裂纹率逐渐减少.
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It's an effective method for preventing from cold crack to control quantity of hydrogen.
加工中严格控制氢的含量,是直接和有效防止冷裂纹产生的手段.
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