橡胶密封模具设计参数的研究

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英文篇名：Study on Design Parameters of Rubber Seal Mold 作者：武建军 ; 王欢 ; 向宇 ; 邱召佩 英文作者：WU Jianjun;WANG Huan;XIANG Yu;QIU Zhaopei;Guangzhou Mechanic Engineering Research Institute;National Engineering Research Center of Rubber and Plastic Sealing; 关键词：橡胶密封制品 ; 模具 ; 设计参数 ; 线膨胀系数 ; 位移云图 英文关键词：rubber sealing product;;mold;;design parameter;;coefficient of linear thermal expansion;;displacement nephogram 中文刊名：XJKJ 英文刊名：Rubber Science and Technology 机构：广州机械科学研究院有限公司;国家橡塑密封工程技术中心; 出版日期：2019-01-15 出版单位：橡胶科技 年：2019 期：v.17;No.289 基金：广州市珠江科技新星专项(201610010161) 语种：中文; 页：XJKJ201901018 页数：5 CN：01 ISSN：10-1121/TQ 分类号：48-52

摘要

以Y形密封圈为例,研究橡胶密封模具设计参数。模具壁厚主要取决于模具材料的屈服强度、橡胶密封制品胶料的硬度和流动性。模具热膨胀主要影响橡胶制品的直径,不会对模具型腔配合面造成不良影响,对模具断面尺寸的影响可以忽略不计。锁模力对橡胶制品尺寸的影响非常小,可以忽略不计。模具型腔内部压力主要影响橡胶制品的断面尺寸,严重时模具型腔配合面会产生缝隙。设计橡胶密封模具型腔尺寸时需重点考虑橡胶制品胶料的硬度、流动性、线膨胀系数和硫化温度以及模具材料的屈服强度和线膨胀系数。
        Taking Y-shaped sealing ring as an example,the design parameters of rubber seal mold were studied. The mold wall thickness mainly depended on the yield strength of mold materials,the hardness and fluidity of rubber compounds. The thermal expansion of mold mainly affected the diameter of rubber product,and had no adverse effect on the fitting surface of mold cavity,and the influence of thermal expansion on the cross dimensions of mold could be neglected. The influence of clamping force on the size of rubber products was very small and could be neglected. The cavity pressure of mold mainly affected the cross dimensions of the rubber product,and caused cracks in the fitting surface of the mold cavity in severe cases. The hardness,fluidity,coefficient of linear thermal expansion,vulcanization temperature of rubber compounds,as well as the yield strength and coefficient of linear thermal expansion of mold materials should be taken into account in the design of size of mold cavity.

引文

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