气缸体是发动机总成中技术要求较高的基础件,一般为灰口铸铁。常见的气缸体缺陷有:螺纹滑扣、裂纹、渗漏、局部磨损和缺损,如不及时修复,将会影响发动机的使用性能和寿命。在修理时,首先要详细分析缸体缺陷的性质、缺陷所在位置的刚性,几何形状的复杂程度、有无自由热胀冷缩的可能性以及修复质量要求等,然后针对缺陷采取相应的措施修 Cylinder block is a high technical requirements in the engine assembly of the basic components, usually gray cast iron. Common cylinder body defects are: thread slip, cracks, leakage, local wear and tear, if not repaired in time, will affect the engine performance and life expectancy. In the repair, we must first analyze in detail the nature of the cylinder defects, the location of the defect stiffness, the complexity of the geometry, the possibility of free thermal expansion and contraction and repair the quality requirements, and then take appropriate measures to repair defects