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我站承接一辆老式丰田面包车,水箱窜气,初步分析为气缸垫冲坏。打开缸盖,发现气缸盖(铝合金缸盖)因加注不合格的防冻液使缸盖水眼严重腐蚀,打算报废缸盖。因买不到缸盖,经研究决定把原缸盖腐蚀处修复。具体办法是:在原孔处用φ30mm 的钻头扩孔,切除腐蚀斑痕。孔下部用铝片垫住,把铝合金熔化后浇注入该孔中,冷却后用小锤敲打,在原孔中心钻φ6mm 的孔,并把缸盖面修平整。装合后,
I stand to undertake an old-fashioned Toyota van, water channeling gas, a preliminary analysis of the cylinder pad washed. Open the cylinder head and found that cylinder head (aluminum cylinder head) due to filling the unqualified antifreeze cylinder head water eye serious corrosion, intended to scrap the cylinder head. Can not buy the cylinder head, the study decided to repair the original cylinder head corrosion. The specific approach is: the original hole with φ30mm drill reaming, removal of corrosion marks. The lower part of the hole is padded with aluminum pieces. The aluminum alloy is melted and poured into the hole. After cooling, it is beaten with a small hammer. A hole of φ6 mm is drilled in the center of the original hole, and the surface of the cylinder head is repaired. After fitting,