高合金钢P9模铸工艺优化实践

Process Optimization Practice of Mould Casting for High Alloy Steel P9

针对P9等高合金钢成分及凝固特性,钢锭容易产生缩孔、疏松、内部裂纹等缺陷,对钢种特点、模铸工艺和钢锭模等工艺要点进行研究,提出了改进P9系列高合金钢的工艺措施。通过对钢水温度和浇注速度的控制,可以有效解决缩孔过大的问题,降低了生产成本,提高了产品质量。

According to the composition and solidification characteristics of P9 high alloy steel, ingots are prone to have shrinkage, porosity, internal cracks and other defects. The characteristics of steel grades, die casting process and ingot mould are studied, and the technological measures for improving P9 series high alloy steel are put forward. By controlling the temperature and casting speed of molten steel, the problem of excessive shrinkage can be effectively solved, the production cost is reduced and the product quality is improved.