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我公司推土机铲刀提升液压缸活塞杆在作业时出现了焊缝断裂现象。根据断口形藐分析开裂原因,我们进行了焊接接头的改进设计,制定了焊接工艺试验
My company bulldozer blade to enhance the hydraulic cylinder piston rod welding seam fracture occurred in the operation. According to the analysis of fracture shape destructive analysis, we conducted an improved design of welded joints, developed a welding test