By using solidification and melted slag theory,series mold powders of low alloy steel,plain carbon steel and high carbon steel,were developed and used in production successfully.

• 运用凝固理论和熔渣理论,研制开发了适用于低合金钢、普碳钢、高碳钢的系列保护渣并成功地应用于连铸生产。