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我厂750公斤空气锤锤身是采用立式造型和浇注工艺。现在仅就浇注工艺作一简单介绍。(锤身的造型工艺见图7) 一、立式浇注工艺的特点我们在七○年接受了制造750公斤空气锤的任务。由于当时设备条件所限,主要是熔炼和起重设备不足,使我们不能采用卧式浇注,而用立式。因为这样可减轻砂型重量。但是,除了考虑设备条件之外,我们也考虑到立式浇注有其独特的优点: (1)缸体中下部在高的静压头下产生气孔的可能性较小,表面质量好。而这正是
Our factory 750 kilograms of air hammer hammer is the use of vertical modeling and casting process. Now just pouring process for a brief introduction. (Hammer body modeling process shown in Figure 7) First, the characteristics of vertical casting process We in 70 years to accept the task of manufacturing 750 kg air hammer. Due to the limited equipment conditions at the time, there were not enough smelting and lifting equipment so that we could not use horizontal pouring instead of upright. Because it can reduce the sand weight. However, aside from the equipment considerations, we also consider that vertical pouring has its unique advantages: (1) The lower part of the cylinder is less likely to generate blowholes under a high hydrostatic head and the surface quality is good. And this is exactly