1. 型腔布置。根据玻璃钢件的几何结构特点、尺寸精度要求、批量大小、模具制造难易、模具成本等确定型腔数量及其排列方式。
1. Cavity layout. According to the geometric structure characteristics of FRP parts, dimensional accuracy requirements, batch size, difficulty in die manufacturing, die cost and so on, the number of cavity and its arrangement are determined.
对于压制模来说，玻璃钢制件精度，温度控制方式，固化时间及动作先后工序等。
For the pressing die, the precision of FRP parts, temperature control mode, curing time and operation sequence, etc.
2. 确定分型面。分型面的位置要有利于模具加工，排气、脱模及成型操作，玻璃钢制件的表面质量等。
2. Determine the parting surface. The position of parting surface should be beneficial to die processing, zhongyaogui.71ix.comzhenkongdai.37ix.com.cnshuitong.71ix.comdibanms.37ix.com.cn langan.37ix.com.cnbaiyangdian.37ix.com.cnexhaust, demoulding and forming operation, surface quality of FRP parts, etc.
3. 确定布料方式（SMC、DMC、BMC的形状、位置、大小）和排气系统（排气的方法、排气槽位置、大小）。
3. Determine the distribution mode (SMC, DMC, BMC shape, location, size) and the exhaust system (exhaust method, exhaust slot location, size).
4. 选择顶出方式（顶杆、顶管、推板、组合式顶出），决定侧凹处理方法、抽芯方式。
4. Choose the ejection method (jacking rod, pipe jacking, pushing plate, combined ejection), determine the side concave treatment method and core pulling method.
5. 决定冷却、加热方式及加热冷却沟槽的形状、位置、加热元件的安装部位。
5. Determine the cooling and heating mode, the shape and position of the cooling groove and the installation position of the heating element.
6. 根据模具材料、强度计算或者经验数据，确定模具零件厚度及外形尺寸，外形结构及所有连接、定位、导向件位置。
6. According to the die material, strength calculation or empirical data, determine the thickness and size of the die parts, the shape structure and the position of all the connecting, positioning and guiding parts.
7. 确定主要成型零件，结构件的结构形式。
7. Determine the structural form of the main forming parts and structural parts.
8. 考虑模具各部分的强度，计算成型零件工作尺寸。
8. Considering the strength of each part of the die, the working dimensions of the forming parts are calculated.