High-manganese steel and preparation method thereof

一种高锰钢及其制造方法

  • Inventors: SUN QIANG
  • Assignees: 孙强
  • Publication Date: October 09, 2013
  • Publication Number: CN-103343290-A

Abstract

The invention discloses high-manganese steel and a preparation method thereof, belonging to the technical field of wear-resistant materials. The high-manganese steel contains the following chemical ingredients in percentage by mass: 1.0-1.5% of carbon, 15-20% of manganese, 0.3-0.6% of silicon, 1-3% of chromium, 0.2-0.5% of molybdenum, 0-0.1% of cuprum, 0.001-0.005% of boron, 0-0.03% of rare earth, not higher than 0.03% of phosphorus, not higher than 0.03% of sulfur and the balance of ferrum. The preparation method of the high-manganese steel, disclosed by the invention, comprises the following steps of: (a) preparing: selecting scrap steel and waste manganese steel as raw materials, and preparing an appropriate alloy raw material; (b) molding; (c) smelting; (d) casting: controlling the casting temperature to be 1,500-1,550 DEG C and the time for heat preservation to be 3 h; (e) carrying out sand cleaning: controlling the sand cleaning time according to the size and thickness of a cast part; (f) burnishing and checking the size of the cast part; and (g) carrying out heat treatment: heating to the temperature of 1,050-1,110 DEG C, carrying out heat preservation for 4 h, and carrying out quick tapping and air cooling. The high-manganese steel and the preparation method thereof have the beneficial effects that the impact resistance and toughness of the high-manganese steel are improved, the production process is simple, the cost is low, and the market prospects are good.
本发明公开了一种高锰钢及其制造方法,属于耐磨材料技术领域,所述的高锰钢含有下列质量百分比的化学成分::碳:1.0%~1.5%,锰:15%~20%,硅:0.3%~0.6%,铬:1%~3%,钼:0.2%~0.5%,铜:0~0.1%,硼:0.001%~0.005%,稀土:0~0.03%,磷≤0.03%,硫≤0.03%,其余为铁。本发明的一种高锰钢制造方法,包括以下步骤:a)准备工作:选择废钢和废旧锰钢作为原材料,配制合适的合金原材料;b)造型;c)冶炼;d)浇注:浇注温度控制在1500℃~1550℃,保温时间为3小时;e)清砂:根据铸件大小及厚度来控制清砂时间;f)打磨、检验铸件尺寸;g)热处理:升温到1050℃~1110℃,保温4小时;快速出炉进行空冷。有益效果是提高其抗冲击性及韧性;生产工艺简单、成本低,市场前景好。

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