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有些铸铝件表面有不能进行机械加工的细槽,当宽度在5毫米以下,深度在2毫来以上时,用普通砂型就很难铸出清晰的轮廓。由于生产批量小,又不宜采用其它铸造方法。如我们厂生产的“脱盐水过滤器”上,有一指示器壳,材料为ZL102,表面细槽宽3毫米,深2.5毫米,其设计形状不能用机械加工的方法形成。我们就采用铸入铜条的方法来成型,此法与铝合金的细孔铸造用铜管型芯法原理一
Some cast aluminum parts can not be machined on the surface of fine grooves, when the width of 5 mm below the depth of 2 millimeters or more, the common sand is difficult to cast a clear outline. Due to the small batch of production, it is not appropriate to use other casting methods. As our factory production of “desalinated water filter”, there is an indicator shell, the material is ZL102, the surface of the groove width of 3 mm, 2.5 mm deep, the design shape can not be formed by machining. We use the method of casting into the copper bar to form, this method and the aluminum alloy fine-casting copper tube core method for a