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铜合金的低压铸造采用尚不普遍,理论上的研究亦较少,目前还缺少一套完整的工艺设计参数.我们分厂广大革命职工发扬敢想、敢干的革命精神,从66年开始,经过实践、认识、再实践、再认识,多次反复试验,先后成功地应用石墨型和水玻璃砂型低压铸造新工艺制造船用螺旋桨,消除了氧化物夹渣,减少了铸件毛坯加工余量,降低了加工工时.现将我们试验应用情况介绍于下.
Low-pressure casting of copper alloy is not yet universal, the theoretical research is also less, there is still a lack of a complete set of process design parameters. Our vast number of revolutionary workers in our factory to carry forward the courage and dare to do a revolutionary spirit, starting from 66, After practice, understanding, re-practice, re-understanding, repeated trial and error, it has successfully applied graphite and sodium silicate low-pressure casting new craft to manufacture marine propeller, eliminating the oxide slag, reducing the casting blank machining allowance and reducing The processing time. Now we test the application of the situation in the next.