By comparison with manual arc welding, it is found that the thermit welding is a efficiency, energy saving and high quality process for repair welding of steel ingot die.
根据对比铝热焊与手弧焊修复工艺，阐明了用铝热焊修复钢锭模是一种高效、节能、焊接质量好的新方法。
2
The composite steel pipe made by the technology of SHS thermit centrifugal casting has excellent wear resistance and can be widely used in mines, electric power and building materials industry.