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弓形板是我厂二号轧机一构件,材质为42SiMn调质钢,在使用中从颈部断裂,按有关技术要求应予报废,但从生产和经济上考虑,决定采用焊接修复。
Bow-shaped plate is a component of our mill No. 2 mill. The material is 42SiMn quenched and tempered steel. When it is used, it should be scrapped from the neck. It should be scrapped according to relevant technical requirements. However, from the perspective of production and economy, it is decided to adopt welding repair.