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日产汽车公司的高真空压铸技术是在关闭压铸模具的状态下,由设置在压铸模内的真空阀减压,从压铸模内到压铸套筒内均实施减压,利用产生的压差,从压铸套筒下部的孔,经由供给金属熔液的管道向压铸套筒内吸引金属熔液。因此,金属熔液与空气的接触较少,减少了在压射及充填过程中卷入的空气,从而生产出高品质的薄壁铸件。介绍高真空压铸的主要基础技术,及其在机体铸造中的应用。
Nissan Motor Corporation’s high-vacuum die-casting technology is the state in the closed die-casting mold, the vacuum valve provided in the die-casting mold decompression from the die-casting mold to die-casting sleeve are implemented within the decompression, the use of the resulting pressure difference from The hole in the lower part of a die-cast sleeve is made to draw molten metal in a die-cast sleeve via the pipe which supplies molten metal. As a result, the molten metal comes into less contact with the air, reducing the amount of air entrapped during the shot-press and filling to produce high-quality thin-walled castings. Introduce the main basic technology of high vacuum die casting and its application in the body casting.