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日本富士电波工业公司开发出了一种简易型真空铸造炉,这种铸造炉即使是在大气中进行浇铸,其混入的氮、氧等气体也可比以前采用的方法减少一半,其浇铸质量基本上与真空浇铸相同。 该铸造炉的出铁口更换成铝制圆板(厚度为1mm以下的薄板),浇铸时,通过铝板的破损这种方式进行出铁,不需要像以前那样开关真空阀的操作,故可以大大缩短水与大气的接触时间,从而实现了杂质少的高质量浇铸。
Fuji Electric Industries, Ltd. of Japan has developed a simple vacuum casting furnace, the casting furnace even in the air for casting, mixed with nitrogen, oxygen and other gases than the previous method can be used to reduce its casting quality basically Same as vacuum casting. When the tapping hole of the foundry furnace is replaced with an aluminum circular plate (a thin plate having a thickness of 1 mm or less), tapping of the aluminum plate during casting is performed, and the vacuum valve is not required to be opened and closed as before, Shorten the contact time of water and atmosphere, so as to realize high quality casting with less impurities.