化粪池模具设计要考虑尽量简化模具结构及降低模具零件的加工难度。塑件设计时要考虑模具零件尤其是成型零件的加工工艺性。材料选择时的质量控制塑料材料的选择是否合适不仅影响产品的使用性能,而且影响产品的整个生产过程、生产成本和生产效率,以及成型工艺规程的编制、产品成型的难易程度以及产品的质量等。因此,化粪池模具设计者在选择塑件材料时应注意以下问题:材料的性能要满足产品的使用要求。要充分分析塑件的使用环境和实际使用要求,选择物理性能、化学性能、力学性能、热性能和电性能等方面都能满足塑件使用要求的材料。

The design of septic tank mold should consider simplifying the mold structure and reducing the processing difficulty of the mold parts. In the design of plastic parts, the processing technology of the mould parts, especially the forming parts, should be considered. The choice of the materials and the quality control of plastic material selection is appropriate performance not only influences the effect of the product, and the production cost and production efficiency, production process, and forming process design, molding difficult degree and quality of products. Therefore, the designer of septic tank should pay attention to the following problems when selecting plastic parts: the performance of the material should meet the requirements of the product. To fully analyze the use environment and practical application requirements of plastic parts, the materials which can meet the requirements of plastic parts are selected, such as physical properties, chemical properties, mechanical properties, thermal properties and electrical properties.