On the Defects in Injection-Moulded Technical Ceramics

A heated sprue device for ceramic injection moulding was used to research the defects in injection-moulded technical ceramics. By use of the heated sprue device, the problem of sprue solidification was resolved and the density of the injection moulding specimens was increased while the defects elimi...

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Veröffentlicht in:Key engineering materials 2007-01, Vol.336-338, p.1025-1027
Hauptverfasser: Li, Jian Bao, Wu, Bo Lin, Xie, Zhi Peng, Yang, Jin Long, Yu, Xin Gang, Zuo, Yan Bin, Huang, Yong, Liu, Lan Yun, Wang, Lin, Gong, Yi
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container_end_page 1027
container_issue
container_start_page 1025
container_title Key engineering materials
container_volume 336-338
creator Li, Jian Bao
Wu, Bo Lin
Xie, Zhi Peng
Yang, Jin Long
Yu, Xin Gang
Zuo, Yan Bin
Huang, Yong
Liu, Lan Yun
Wang, Lin
Gong, Yi
description A heated sprue device for ceramic injection moulding was used to research the defects in injection-moulded technical ceramics. By use of the heated sprue device, the problem of sprue solidification was resolved and the density of the injection moulding specimens was increased while the defects eliminated. The influence of the processing parameters on the defects of the injection molding specimens was investigated in detail by X-ray radiography camera and photograph. It turns that the sprue solidification time has much influence on the defects in injection-moulded technical ceramics. Reasons causing the results above were also analyzed. Based on the research, bars of 20mm in diameter without macroscopic defects and turbine blade of fine property with Si3N4/SiC(w) materials were prepared by injection moulding.
doi_str_mv 10.4028/www.scientific.net/KEM.336-338.1025
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