10CrNi3MoV(L)低合金高强钢自动埋弧焊焊接性能研究

详细信息

Weldability of High Strength Low Alloy 10CrNi3MoV(L) Steel

摘要: 采用等强匹配的10MnNi2MoTi合金焊丝和705-ch熔炼焊剂,通过改变焊接线能量及道间温度对不同碳含量连铸10CrNi3MoV低合金高强钢板焊接性进行了研究。结果表明,连铸10CrNi3MoV钢板具有较好的接头力学性能和焊接工艺适应性,但在较大线能量条件下(～40kJ/cm),接头韧性降低。为保证连铸10CrNi3MoV钢接头韧性水平,在限制自动埋弧焊线能量的同时,还应提高钢板韧性,控制钢板碳含量。
- 连铸 /
- 高强钢 /
- 自动埋弧焊
Abstract: Weldability of high strength low alloy steel plate of continuously cast 10CrNi3MoV with different carbon-content is investigated adopting strength-matching wire 10MnNi2MoTi and fused flux 705-ch in different welding heat input and temperature.The welding joint exhibits good mechanical properties and fabrication weldability, but the toughness of the joint decreases in high heat input (～40kJ/cm). To improve the HAZ toughness, the heat input should be controlled no higher than 40kJ/cm and the carbon content of 10CrNi3MoV steel should be controlled within a narrow range for the sake of the toughness of 10CrNi3MoV steel plate.
- Continuously cast /
- High strength steel /
- Submerged arc welding