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在以前的文献中曾叙述过,在自动封闭的“绝对真空抽吸模”内,铁合金凝固时和凝固后所放出的游离态氢量与钢中的总氢量具有近似直线的关系,而且,放出的氢量能反映出材料在锭模内冷却时的扩散能
It has been previously described in the prior art that the amount of free hydrogen released during solidification and after solidification of the iron alloy in an automatically closed “absolute vacuum suction mold” has a nearly linear relationship with the total amount of hydrogen in the steel and is released The amount of hydrogen can reflect the material diffusion in the ingot mold cooling