某型滑轨组件焊接工艺研究

摘要

某型滑轨组件采用结构钢基体与厚度为1.5mm的无油自润滑轴承衬板焊接而成。结构钢基体采用18Cr2Ni4WA材料，具有支撑、保证整体刚性的作用。将自润滑衬板冲压成形与滑轨紧密贴合后，边缘采用电子束焊接工艺进行连接。提出一种抗脱落、耐摩擦、精度高、摩擦系数小、成本低、能承受较大载荷的高压燃油柱塞泵滑轨的结构设计方案及加工工艺。%A type of slide rail sub-assembly is constructed with an oil-free self-lubricating bearing lining plate of 1.5mm thickness welded onto a structural steel frame. The structural steel is made of 18Cr2Ni4WA alloy, and is used for supporting and ensuring the overall rigidity of the sub-assembly. The oil-free self-lubricating bearing lining plate is iftted into the slide rail tightly by stamping, of which the edges is jointed closely via electron beam welding. The study puts forward a structural design and manufacturing process for slide rail of high pressure fuel ram pump, which has the properties of anti shedding, fric-tion resistant, high precision, low friction coefifcient, low cost, and can withstand greater loads.