基于衍射光学元件精密模压技术的装配式建筑预制构件模具设计

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中图分类号：TG376.2 文献标志码：A

Abstract： In order to improve the manufacturing accuracy and efficiency of prefabricated building component molds， research is conducted on the design of prefabricated building component molds based on diffraction optical element（DOE） precision molding technology. Analyze the difficulties in mold preparation， input molding parameters and diffraction design parameters into a precision molding machine，and successfully mold prefabricated building component molds using resin as raw material. To verify the performance of the mold， ANSYS finite element software was used to analyze the deformation and stress of the mold. The experimental results show that the mold designed using this method undergoes lateral deformation under the ultimate load in the X direction，with increased displacement at theleft end but no damage;Under the ultimate load in the Y direction，the mold undergoes vertical deformation and the displacement at the bottom increases，but the sample structure remains intact，proving that the raw materials used for the mold are of high quality and still maintain good elasticity after molding and etching. During the molding preparation process，an increase in speed will cause an increase in mold stress and an increase in surface equivalent stress values. The increase in speed leads to an increase in the impact and pressure on the mold，making it prone to excessive local stress. However， the stress change of the mold does not exceed 7MPa ， indicating that the mold can meet the requirements of relevant application scenarios.

Key words： diffractive optical element（DOE）； precision molding technology；assembled type; prefabricated building components; component mold; ANSYS finite element software

0 引言

在装配式建筑预制构件模具设计中，精密模压技术是关键所在[]，该技术通过加热软化或熔融状态的塑料材料，将其放人模具中，并施加巨大压力，使塑料材料紧密贴合模具形状2。（剩余9343字）