在生产中,许多压铸件需要有螺纹孔。在一定工艺条件下,锌、铝、镁合金可压铸螺纹,但因条件所限,有些零件直接压铸螺纹有困难,可采用压铸螺纹预制孔的方法。 一、铝合金铸件 的应用实例 1.小尺寸螺纹孔 图1为电源箱面板。外形尺寸为220×135mm,壁厚为2mm,板上有16个M3螺纹孔,每4个M3螺纹孔围绕一较大圆孔,有两个方 In production, many die-castings require threaded holes. In a certain process conditions, zinc, aluminum, magnesium alloy die-casting threads, but due to limited conditions, some parts of the direct die-casting thread difficulties, the use of die-casting thread prefabricated hole method. First, the application of aluminum alloy castings 1. Small-size threaded holes Figure 1 for the power box panel. Dimensions are 220 × 135mm, wall thickness is 2mm, the board has 16 M3 threaded holes, each of the four M3 threaded holes around a larger hole, there are two parties