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近年来,化工部泸天化等八家化工厂,从美国引进成套化工设备,该设备上的重要易损备件一叶轮,因结构复杂,质量要求高,一直靠花费巨资从美国进口备件。我厂受泸天化等化工厂委托,先后采用熔模精铸法和陶瓷灌浆精铸法试制成14孔双流道叶轮,3孔单流道叶轮、5孔双流道叶轮、12孔导轮等。经使用其性能和寿命均达到和超过美国进口零件,从而填补了我国大型化肥备件的一项空白。下面就以较典型的14孔、5孔叶轮为例,谈谈我们在试制工作中的一些经验和体会。
In recent years, eight chemical plants, including Lutianhua Chemical Company of the Ministry of Chemical Industry, have introduced complete chemical equipment from the United States. One important impeller of the equipment is an impeller. Because of its complicated structure and high quality requirements, it has been importing huge quantities of spare parts from the United States. I plant by Lutianhua other chemical plant commissioned, has adopted the investment casting method and ceramic grouting casting method made 14-hole dual-flow impeller, three-hole single-flow impeller, five-hole dual-flow impeller, 12-hole guide wheel Wait. After using its performance and longevity have reached and exceeded the United States imports of parts, thus filling China’s large-scale fertilizer spare parts of a blank. Below to a more typical 14-hole, 5-hole impeller, for example, to talk about our trial in some of the experience and experience.