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采用一般涂料生产欧Ⅱ汽车发动机缸体、缸盖时,在缸体、缸盖内腔会有大量粘砂,用振击吹砂方式进行清理,效果不够理想。在本试验中,采用喷丸和吹气相结合的方式清理欧Ⅱ缸体、缸盖的粘砂,取得了理想的效果。最佳喷吹工艺为:对缸体喷丸流量0.3 kg/s,两个侧面各3孔,每孔喷20 s,吹气10 s;对缸盖喷丸流量0.2 kg/s,侧面3孔,每孔喷10 s,吹气10 s。
The use of general paint production Europe Ⅱ car engine cylinder block, cylinder head, cylinder, cylinder head cavity there will be a lot of sticky sand, with vibrating blow sand way to clean, the effect is not ideal. In this experiment, the combination of shot peening and blowing clean the Europe Ⅱ cylinder block, cylinder head of the sticky sand, and achieved the desired results. The best injection process is as follows: the shot blasting of the cylinder is 0.3 kg / s, the two sides are 3 holes, each hole is sprayed for 20 seconds and the air is blown for 10 seconds; the shot blasting of the cylinder head is 0.2 kg / s, , Each hole spray 10 s, inflatable 10 s.