论文部分内容阅读
发动机气缸盖,有一部分是铸铝的。这种缸盖经长期使用后,由于受冷却水的化学腐蚀,往往在水口附近发生金属剥离。有的缸盖在燃烧室顶部和鼻梁之间以及水口和螺栓孔之间出现裂缝。由于铸铝缸盖材质较软,缸盖上的连接螺纹也易滑扣。出现上述损坏现象后,需要用气焊焊修。现将我厂焊修铸铝气缸盖的工艺介绍如下。一、焊条采用自制铝焊条。制作过程:先做一铁勺。
Engine cylinder head, some are cast aluminum. This long-term use of the cylinder head, due to the chemical corrosion of the cooling water, often occurs near the nozzle metal stripping. Some cylinder heads crack between the top of the combustion chamber and the bridge of the nose and between the nozzle and the bolt holes. As cast aluminum cylinder head material is softer, cylinder head connection thread is also easy to slip. After the above phenomenon of damage, you need to use gas welding repair. Now I plant welding cast aluminum cylinder cover process described below. First, the electrode using homemade aluminum rod. Production process: First make an iron spoon.