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发明公开
CN108907090A 一种高锰钢履带板的铸造工艺 无效 - 撤回

一种高锰钢履带板的铸造工艺
摘要：
本发明涉及一种高锰钢履带板的铸造工艺。该铸造工艺的具体步骤如下：第一步，确定制造模具；第二步，制造砂型、下芯合箱；第三步，冶炼废钢，制备浇注钢水；1)在冶炼之前加入合金元素钒和钛做生核剂；2)在冶炼还原期过程中连续造白渣，并控制磷含量应在0.035％以下；第四步，浇注；浇注钢水的出钢温度1590-1620度，并且浇注前导包一次，使浇注温度在1415～1435度；第五步，开箱，浇注后50分钟后开箱。本发明降低了高锰钢铸造履带板裂纹率和断裂几率，显著提高了使用寿命。
摘要（英）：

The invention relates to a casting process for high-manganese steel track plates. The casting process comprises the following specific steps: (1) a manufacturing mold is determined; (2) a sand mold and a lower core box are manufactured; (3) waste steel is smelted to prepare pour steel; 1) alloy elements of vanadium and titanium are added before smelting as nucleating agents 2) white slag is continuously prepared in the smelting reduction process; and the content of phosphorous is controlled below 0.035%; (4) pouring: the tapping temperature of the pour steel is 1590-1620 DEG C; and the bag guidance is performed once before pouring, so that the pouring temperature is 1415-1435 DEG C; and (5) unpacking: the pouring is performed by 50 minutes for unpacking. The casting process reduces the crack rate and the rupture probability of the high-manganese steel track plates, and prominently prolongs the service life.

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