低碳钢与奥氏体不锈钢焊接工艺改进研究

摘要

针对低碳钢与奥氏体不锈钢在焊接过程中易产生裂纹、焊缝韧性较低、碳的迁移以及焊缝剥离等问题，通过对材料焊接性能的理论分析，并结合现场实践经验，提出了有效控制焊接过程中产生上述缺陷的相关措施。主要包括严格控制母材熔合比、焊接时采用过滤层、使用含镍量较高的填充材料等，并提出了一系列改进焊接工艺的建议，在实际工程中取得了良好的效果。%In consideration of the problems in the process of welding between low carbon steel and austenitic stainless steel , such as cracks , low toughness of welding seam , carbon migration and welding seam exfoliation , through theoretical analysis of material welding performance and in combination with field practical experience , the relevant countermeasures to effectively con-trol the above defects were carried out , including strict control over material blending ratio , adopting filter layer during welding process and using filling materials with high nickel content .Moreover , some suggestions to improve the welding technology were proposed, which proved that these measures have a favorable effect in practical applications .