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低压铸造首先在英国得到应用,在目前已能生产重量为0.15～41公斤的铝铸件。这种方法的实质归结如下(见附图):盛放铝液的铸铁坩埚15用气体加热,在通过支管16把铝液注入坩埚后,即用塞子把16堵住,坩埚用盖子14密闭,在盖子上通过中间垫板13而与金属型相连接。金属型由下半型3和上半型4、5组成;此外有导向杆7、横梁8以及用
Low-pressure casting was first applied in the United Kingdom, has been able to produce the weight of 0.15 to 41 kg of aluminum castings. The essence of this method is summarized as follows (see attached): The cast iron crucible 15, which holds the molten aluminum, is heated with gas. After the molten aluminum is injected into the crucible through the branch pipe 16, the plug 16 is plugged to seal the crucible with the lid 14, The lid is connected to the metal mold by means of an intermediate pad 13. Metal type from the lower half 3 and the upper half 4,5 constitute; in addition to the guide rod 7, the beam 8 and the use of