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我厂担负着250型及东风牌三轮摩托车的修理及部分配件任务。在修理过程中发现缸体中镶的钢套磨损较严重,维修中占很大的工作量。针对提高气缸体耐磨性的要求,我们经多次反复试验,试制成一种铸铝合金松孔镀铬的气缸体。它有如下的优点。 1.铸铝合金气缸体,采用金属型铸造,散热片厚度可铸成2毫米。表面光滑、美观,散热条件好,重量轻,毛重为2.5公斤,净重为2.2公斤。 2.铝合金气缸体经镀铬松孔后比镶钢套的气缸体耐磨性提高5～7倍。
I plant responsible for the 250-type and Dongfeng three-wheeled motorcycle repair and parts of the task. In the repair process found in the cylinder block set of steel wear more serious repair accounted for a lot of workload. To improve the wear resistance of the cylinder body requirements, we have repeatedly tested, trial and error into a cast aluminum alloy loose hole chrome cylinder block. It has the following advantages. 1. Cast aluminum alloy cylinder body, the use of metal casting, heat sink thickness can be cast into 2 mm. Surface smooth, beautiful, good cooling conditions, light weight, gross weight of 2.5 kg, net weight of 2.2 kg. 2. Aluminum cylinder body after chrome-plated holes than the set of steel cylinder body wear resistance increased by 5 to 7 times.