The application of plaster mold on development of loose sintering in combination CIP process

• Main Authors: Jiann Shing Lee, 李建興
• Other Authors: S. Wang
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/49361112241464212369

碩士 === 國立臺灣科技大學 === 機械工程研究所 === 83 === Presently MIM is a hotest topic in P/M industry, because the process can produce high density of complicate shaped parts. However, MIM has a major disadvantage, namely the debinding time is too long, and also has a limitation that fine powder must be used. In this study, plaster mould will be applied in the com- bined work of loose sintering and CIP process. If fine powders (3.8μm) are used in this process, the aim is to eliminate the mixing, granulating and debinding steps and time reguired in the MIM process. If 150μm powder are used, it is intended to break the limitation of fine powder in the MIM process. In conclusion: (1).plaster mould can be used in loose sintering. (2).CIP can not show it's contribution on densification of loose sintering parts clearly. (3).150μm powders does not be loose sintering easily, but it can be easy in air at 500℃ and be reduced densification sintering completed in hydrogen.