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用电弧焊方法焊接陶瓷与不锈钢 ,研究了焊接电流、电弧长度等工艺参数对焊接质量的影响。结果表明 ,在陶瓷金属复合材料的陶瓷层上焊接不锈钢 ,焊接加热不仅可以改善复合钢管中陶瓷与金属的结合方式 ,在焊接区实现陶瓷与金属的微冶金结合 ,而且焊接后的陶瓷内衬复合钢管的压 剪强度明显增加 ,焊缝为柱状枝晶组织 ,焊接熔合区的陶瓷受焊接热作用由原来的树枝晶改变为细小的等轴晶 ,陶瓷与母材呈现微冶金结合方式 ,焊接热影响区陶瓷仍保留树枝晶特征。
The arc welding method of welding ceramic and stainless steel, welding current, arc length and other process parameters on the welding quality. The results show that the welding of stainless steel on the ceramic layer of ceramic-metal composite can not only improve the combination of ceramic and metal in the composite pipe, but also realize the micro-metallurgical bonding between ceramic and metal in the welding area. And the ceramic- The compressive shear strength of the steel pipe is obviously increased, the weld is columnar dendritic structure, and the ceramic in the welding fusion zone is changed from original dendrite to fine equiaxed crystal by the welding heat effect. The metallurgical bonding mode between ceramic and base metal is present, Affected area ceramics still retain dendrite characteristics.