绞吸式挖泥船Hardox400耐磨钢板焊接工艺试验及应用

详细信息

Welding Process Test and Application of Hardox400 Wear-resisting Steel Plate in Cutter Suction Dredger

1. Shanghai Zhenhua Heavy Industries Qidong Marine Engineering Co. Ltd, Qidong 226200, China;
2. School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

摘要: 研究了Hardox400耐磨钢焊接工艺。预热后采用船用4Y等级药芯焊丝进行打底及部分填充焊接，采用耐磨焊丝继续填充及盖面焊接，焊缝综合性能良好，根部熔和良好，同时表面耐磨层焊缝与母材的硬度相当，焊缝性能达到设计要求。
- 绞吸式挖泥船 /
- Hardox400 /
- 焊接工艺
Abstract: The welding process of Hardox400 wear-resistant steel was established by welding test. First, 4Y grade flux-cored wire is used for base and partial filling welding after preheating, then wear-resistant wire is adopted for filling and cover welding after secondary preheating. The results show that there is no crack in the weld, the root fusion is well, and the hardness of the wear-resistant layer weld is equal to that of the base material. The weld scheme has been formulated, and the welding of the product has been completed.
- cutter suction dredger /
- Hardox400 /
- welding process