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国家经济建设需要大量的钢材,品种要多,质量也要好。对于许多重要的钢种来说,比如优质碳素钢和含合金元素的高强度结构钢,含氢量如果超过一定的限度,就会显著地降低质量,甚至造成废品。这是因为氢在钢的内部能形成气泡,疏松和裂纹,即使它的危害性还没有达到这样严重的程度,钢的韧性也会显著降低。因此,在炼钢过程中了解氢的来源,从而设法降低钢中氢的含量,是
The national economic construction requires a large amount of steel, with more varieties and better quality. For many important steel grades, such as high-quality carbon steels and high-strength structural steels containing alloying elements, if the hydrogen content exceeds a certain limit, the quality will be significantly reduced, and even waste products will result. This is because hydrogen can form bubbles, looseness and cracks in the interior of the steel, and even if its harmfulness has not reached such a serious level, the toughness of the steel will be significantly reduced. Therefore, understanding the source of hydrogen in the steelmaking process and trying to reduce the hydrogen content in the steel is