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一、问题的提出:高速钢由于其化学成份所决定的铸造组织的特点,其塑性较差,所以国内各厂均采用锻锤将钢锭锻成小坯(或再改轧成小规格轧材用的二次坯),然后供型材轧机直接轧成不同规格的钢材。我厂75年以前也基本是用这一条工艺路线,但是由于我厂锻造开坯能力差,能锻高工的有5T锤一台,3T锤一台,而5T锤由于加热设备条件限制,红钢不易回炉,因而只有3T锤开坯,3T锤成了我厂高工钢和难变形高合金钢开坯的唯一设备,随着我厂高合金钢产量的增加,锻造能
First, the question put forward: High-speed steel due to its chemical composition of the foundry organization features poor plasticity, so the domestic plants are used forging hammer forging the ingot into a small billet (or re-rolled into a small size rolling with Of the second billet), and then for the rolling mill directly into different specifications of the steel. 75 years ago, I also basically use this process line, but because I plant forging billet poor ability to forging a 5T hammer a hammer, hammer 3T, and hammer 5T due to heating equipment conditions, red Steel is not easy to return, so only 3T Hammer open blanks, 3T Hammer has become my factory high-tech steel and difficult to deform high-alloy steel billet the only equipment, with my plant high alloy steel production increased forging energy