一般塑料注塑模具加工厂家进行模具加工在选择分型面的选择会影响到开模后的注塑件是滞留在动模型腔中，还是滞留在定模型腔中，进而影响到产品能否顺利脱模，还会影响到模具型腔的加工性。塑料注塑模具加工厂家分型面处是否会产生飞边或分型面的痕迹线是否会影响到注塑件尺寸、形状、壁厚、模具结构、模具排气及注塑件膜模。故选择分型面时，要综合考虑各方面影响因素、条件和要求，合理地选择分型面。塑料注塑模具加工厂家分享模具加工在选择分型面应考虑的因素：
Generally, when plastic injection mold processing manufacturers select the parting surface for mold processing, it will affect whether the injection parts after mold opening are retained in the moving mold cavity or in the fixed mold cavity, and then affect whether the products can be demoulded smoothly, as well as the processability of the mold cavity. Whether there will be flash or trace line on the parting surface at the plastic injection mold processing factory, and whether it will affect the size, shape, wall thickness, mold structure, mold exhaust and film mold of injection parts. Therefore, when selecting the parting surface, we should comprehensively consider all influencing factors, conditions and requirements, and reasonably select the parting surface. Plastic injection mold manufacturers share the factors that should be considered in selecting parting surface for mold processing:
1、一般情况下，塑料注塑模具加工厂家注塑件应滞留在动模型腔中，越便于产品的脱模；
1. In general, the injection parts of plastic injection mold manufacturers should stay in the dynamic mold cavity, which is more convenient for product demoulding;
2、应避开“障碍体”的阻碍，避免运动干涉，方便产品脱模和模具型腔的加工；
2. The obstruction of "obstacle body" shall be avoided to avoid motion interference, so as to facilitate product demoulding and mold cavity processing;
3、应尽量设在不显眼和易去除飞边、毛刺及容易加工的位置上；
3. It shall be set in an inconspicuous and easy to remove flash, burr and easy to process position as far as possible;
4、应设在无凹陷及圆弧R的切点之外的位置上；
4. It shall be set outside the tangent point of arc r without depression;
5、应考虑到浇口位置的设置及其形状；
5. The setting of gate position and its shape shall be considered;
6、有利于浇注系统和排气系统的布置；
6. It is conducive to the layout of gating system and exhaust system;
7、不影响模具加工的尺寸及其精度；
7. It does not affect the size and accuracy of die processing;
8、应考虑塑料的性能及填充条件；
8. The properties and filling conditions of plastics shall be considered;
9、应考虑成型的工艺性及效率；
9. The processability and efficiency of molding shall be considered;
10、模具的结构简单、使用方便稳定。
10. The die has the advantages of simple structure, convenient and stable use.
