熔炼型低氢高韧性焊剂的研究

A NEW FUSED FLUX FOR LOW HYDROGEN HIGH TOUGHNESS WELDS

摘要: 本文对影响埋弧焊熔炼型焊剂焊缝金属扩散氢含量、韧性和焊接工艺性能的主要因素——焊剂碱度、CaF₂与SiO₂组份比例及钛、硼、稀土等微量元素过渡等做了研究探讨,在此基础上研制了一种中性CaO-SiO₂-TiO₂-CaF₂渣系的低氢高韧性YD504A焊剂,已应用于海洋平台用钢和压力容器用钢的焊接,其各项有关性能优良。
- 焊剂 /
- 韧性 /
- 研究
Abstract: Of a fused type flux for submerged arc welding, the main factors affecting the diffusible hydrogen content, the toughness of weld metal and the weldability——the basicity of flux, ratio between CaF₂ and SiO₂, transition of microalloy elements such as titanium, boron and rare earth——have been studied. The authors have succeeded in the development of a new flux of the CaO-SiO₂-TiO₂-CaF₂ neutral slag system, the YD504 flux for low hydrogen and high toughness welds. This type of flux has been successfully applied to the welding of steel offshore structures and pressure vessels.
- Fused flux /
- Toughness /
- Study

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