陶瓷壳体零件制作工艺的研究  

Research on Manufacturing Process of Ceramic Shell Parts

作　　者：廖瑞 王小平 王德林 曹天池 向明 LIAO Rui;WANG Xiao-ping;WANG De-lin;CAO Tian-chi;XIANG Ming(School of Mechanical and Electronic Engineering,Jingdezhen Ceramic University,Jiangxi 333403,China;Ceramic Materials and Engineering Experiment Center,Jingdezhen Ceramic University,Jiangxi 333403,China)

机构地区：[1]景德镇陶瓷大学机械电子工程学院,景德镇333403 [2]景德镇陶瓷大学陶瓷材料工程实验中心,景德镇333403

出　　处：《佛山陶瓷》2024年第8期45-46,55,共3页Foshan Ceramics

基　　金：景德镇市科技局协同创新项目(20202GYZD013-02)。

摘　　要：陶瓷材料可以被用来制作壳体类零件。由于陶瓷坯体在干燥和烧结过程中的收缩率较大,约5%-20%,并且受到多种因素影响,导致壳体零件尺寸精度较低,限制了陶瓷壳体的应用。为了提高陶瓷壳体零件的尺寸精度,本文首先利用注浆成型的方法制作了一个圆柱形陶瓷壳体试件,测量尺寸,计算材料收缩率。然后设计了一个电器仪表外壳,根据收缩率数据将模型放大,采用3D打印的方法制作模芯,并利用此模芯制作石膏模具。最后采用相同的注浆成形工艺参数,制作出陶瓷壳体零件。实验结果表明,这种二次注浆成形工艺能够抵消陶瓷材料收缩,并避免影响因素,使壳体零件尺寸的相对误差小于1%。Ceramic materials can be used to make shell parts.Due to the large shrinkage rate of ceramic body during the drying and sintering process,about 5%-20%,which is influenced by many factors,the dimensional accuracy of shell parts is low.This limits the application of ceramic shell parts.In order to improve the dimensional accuracy,a cylindrical ceramic shell specimen was made using slip casting method.Dimensions of the specimen were measured and shrinkage rates were calculated.Then,outer shell of an electrical instrument was designed,and the model was enlarged based on the shrinkage rate.3D printing method was used to make the mold core,with which a gypsum mold was made.Using the same process parameters of slip casting,a ceramic shell part was made.The experimental results show the two-step slip casting process can compensate for the shrinkage of ceramic materials and avoid the influencing factors,resulting in a dimensional error of less than 1%for shell parts.

关 键 词：陶瓷壳体零件 二次注浆成形 收缩率 

分 类 号：TQ174.6[化学工程—陶瓷工业]