In order to achieve the purpose of

In order to achieve the purpose of high performance, the die material should have high wear resistance, high corrosion resistance, good stability and good thermal conductivity. According to the characteristics of CD box forming, PP is used as the raw material. Therefore, Cr12 is used as the forming part. That is, the economy is reasonable. The heat treatment method adopted is quenching plus medium temperature tempering, HRC ≥ 55.<br>4.3.2 . the cavity should have enough wall thickness to bear the high pressure of plastic melt. Calculate the strength and rigidity of the cavity thickness respectively. Take the maximum pressure calculated by the cavity wall thickness as the standard. Therefore, the cavity of CD box is not too large, so it should be adopted<br>Strength calculation:<br>Thickness calculation of cavity sidewall

In order to achieve the purpose of high performance, the die material should have high wear resistance, high corrosion resistance, good stability and good thermal conductivity. According to the characteristics of CD box forming, PP is used as the raw material. Therefore, Cr12 is used as the forming part. That is, the economy is reasonable. The heat treatment method adopted is quenching plus medium temperature tempering, HRC ≥ 55.<br>4.3.2 . the cavity should have enough wall thickness to bear the high pressure of plastic melt. Calculate the strength and rigidity of the cavity thickness respectively. Take the maximum pressure calculated by the cavity wall thickness as the standard. Therefore, the cavity of CD box is not too large, so it should be adopted<br>Strength calculation:<br>Thickness calculation of cavity sidewall

为了达到高性能的目的，模具材料应具有高耐磨性、高耐腐蚀性、良好的稳定性和良好的导热性。根据光盘盒成型的特点，采用聚丙烯为原料。因此，采用Cr12作为成形件。也就是说，经济是合理的。热处理方法为淬火+中温回火，HRC≥55。<br>4.3.2条. 型腔应有足够的壁厚来承受塑料熔体的高压。分别计算空腔厚度的强度和刚度。以空腔壁厚计算的最大压力为标准。因此，CD盒的腔体不太大，应采用<br>强度计算：<br>空腔侧壁厚度计算<br>