一种液压缸活塞类零件焊接避免气孔的新方法

A New Method of Avoiding Air Hole for Welding Hydraulic Cylinder Piston Parts

焊接作为机械制造行业中的一种工艺方法,在机械加工中被广泛应用,而焊接的质量则更多地取决于其工艺过程,在合理的产品结构基础上靠反复的工艺评定来确定最可靠的工艺参数,以稳定的工艺参数和过程来保证产品质量,而事后检测则往往是不得已而采取的高成本、低可靠性的控制手段。液压缸活塞杆与活塞之间的焊接是不允许在高压下有任何的泄漏,该文通过对造成焊接气孔的失效分析与反复的试验研究,结合生产实际探索出的一种低成本高效率的新型焊接方法,从而减少甚至避免焊接缺陷的产生,保证产品焊接质量。

Abcde As a process method in the mechanical manufacturing industry,welding is widely used in the mechanical processing,and the quality of welding depends more on its process.On the basis of reasonable product structure,the most reliable process parameters are determined by repeated process evaluation,and the product quality is guaranteed by stable process parameters and processes,while the post inspection is often necessary High cost and low reliability control means.The welding between the piston rod and the piston of the hydraulic cylinder is not allowed to have any leakage under the high pressure.In this paper,through the failure analysis and repeated experimental research of the welding porosity,combined with the production practice,a new welding method with low cost and high efficiency is explored,so as to reduce or even avoid the generation of welding defects and ensure the welding quality of products.