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汽缸体及汽缸盖是一种形状复杂的鑄鉄件,同时各部分厚薄的变化很大,因此厚薄部分的組織及机械性能就有可能不一致。汽缸体及汽缸盖又是一种承受复杂动載荷的零件,在某些部位焊修后要求在一定条件下保持密致性,在某些部位焊修后要保証有良好的加工性。我厂在焊修3-203、3-51汽缸体及汽缸盖的过程中,对于汽缸体上下列的損坏部分:与缸盖接触面上的双头螺栓孔与水套之間的裂紋,与缸盖接触面上的进汽門与排汽门之間的裂紋,汽門室加强筋上的裂紋或
Cylinder block and cylinder head is a complex shape castings, while the various parts of the thickness of the great changes, so the thickness of the mechanical and mechanical properties may not be consistent. Cylinder block and cylinder head is a kind of complex dynamic load bearing parts, after some repairs in some parts required to maintain consistency under certain conditions, in some parts after welding repair to ensure good workability. I plant welding repair 3-203,3-51 cylinder block and cylinder head process, the cylinder block on the following damage: the contact surface with the cylinder head bolt hole between the water jacket cracks, And the cylinder head contact surface on the door and the exhaust valve cracks between the cracks in the valve chamber ribs or