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海口钢结构仓库常用解决方案【澳钢钢构铁艺】
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不同的零件对淬透性要求不一样。如弹簧要求淬透,而齿轮即不要求淬透。三、影响淬透性的因素影响钢的淬透性的决定性因素是临界冷却速度(vk),临界冷却速度越小,淬透性越大。影响因素有:1、含碳量 :共析点附近淬透性,远离S点差。2、合金元素: 除Co外,几乎所有的合金元素都降低钢的临界冷却速度,即提高钢的淬透性。共析碳钢C曲线的建立,如图所示:2、共析钢C曲线分析☆①为珠光体转变区。3、奥氏体化:温度越高,保温时间越长,钢的淬透性增大。
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