Comparative study of pore structure evolution during solvent and thermal debinding of powder injection molded parts

1996 ◽  
Vol 27 (2) ◽  
pp. 245-253 ◽  
Author(s):  
K. S. Hwang ◽  
Y. M. Hsieh
Keyword(s):  
Comparative Study ◽  
Pore Structure ◽  
Structure Evolution ◽  
Powder Injection ◽  
Molded Parts ◽  
Thermal Debinding ◽  
Injection Molded

scholarly journals Behavior of Debinding and Sintering in Micron and Submicron-Sized Copper Powder Injection Molded Parts

2013 ◽  
Vol 79 (807) ◽  
pp. 1593-1603 ◽  
Author(s):  
Kazuaki NISHIYABU ◽  
Daiki TANABE ◽  
Yasuhiro KANOKO ◽  
Shigeo TANAKA
Keyword(s):  
Copper Powder ◽  
Powder Injection ◽  
Molded Parts ◽  
Injection Molded

S041021 Effects of Feedstock and Molding Conditions on Density of Soft Magnetic Powder Injection Molded Parts

2011 ◽  
Vol 2011 (0) ◽  
pp. _S041021-1-_S041021-5
Author(s):  
Kenji MASUNAGA ◽  
Kazuaki NISHIYABU ◽  
Jyunji MORIMOTO ◽  
Tomohisa HASHIMOTO ◽  
Shigeo TANAKA
Keyword(s):  
Powder Injection ◽  
Magnetic Powder ◽  
Soft Magnetic ◽  
Molded Parts ◽  
Injection Molded

Atmosphere control during debinding of powder injection molded parts

1995 ◽  
Vol 4 (3) ◽  
pp. 275-282 ◽  
Author(s):  
J. A. Moore ◽  
B. P. Jarding ◽  
B. K. Lograsso ◽  
I. E. Anderson
Keyword(s):  
Powder Injection ◽  
Molded Parts ◽  
Atmosphere Control ◽  
Injection Molded

New insights on the porous network created during solvent debinding of powder injection-molded (PIM) parts, and its influence on the thermal debinding efficiency

2021 ◽  
Vol 295 ◽  
pp. 117163
Author(s):  
Sébastien Rolere ◽  
Ulrich Soupremanien ◽  
Marc Bohnke ◽  
Myriam Dalmasso ◽  
Céline Delafosse ◽  
...  
Keyword(s):  
Powder Injection ◽  
Porous Network ◽  
Thermal Debinding ◽  
Injection Molded

Effects of Different Debinding Atmosphere on the Properties of Powder Injection Molded AlN Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 1028-1030
Author(s):  
Xue Li Du ◽  
Ming Li Qin ◽  
Islam S. Humail ◽  
Pei Zhong Feng ◽  
Xuan Hui Qu
Keyword(s):  
Thermal Conductivity ◽  
Secondary Phase ◽  
Nitrogen Atmosphere ◽  
Raw Material ◽  
Powder Injection ◽  
Phase Identification ◽  
High Temperature Synthesis ◽  
Thermal Debinding ◽  
Injection Molded ◽  
Debinding Process

In the present work the influence of two different thermal debinding atmosphere, vacuum and air, on the properties of 5wt% Y2O3-doped aluminum nitride (AlN) ceramics was investigated. The AlN powder as a raw material was synthesized by self-propagating high-temperature synthesis (SHS) and compact was fabricated by employing powder injection molding technique. The polymer-wax binder consists of 60wt% paraffin wax (PW), 35wt% polypropylene (PP) and 5wt% stearic acid (SA). The binder was removed through debinding process in two steps, solvent debinding followed by thermal debinding. After the removal of binder, specimens were sintered at 1850˚С in nitrogen atmosphere at atmospheric pressure. The result reveals that debinding atmosphere has significant effect on the thermal conductivity and densification of AlN ceramics. The microstructure and secondary phase identification was determined by scanning electron microscopy and X-ray diffraction. The thermal conductivity and density of injection molded AlN ceramics are 177.3W·m-1·K-1 and 3.31g·cm-3 in the air and 200.8W·m-1·K-1 and 3.28g·cm-3 in the vacuum.

Opportunities for producing dimensionally enhanced powder-injection-molded parts

2018 ◽  
Vol 73 (2) ◽  
pp. 68-71 ◽  
Author(s):  
Volker Piotter ◽  
Alexander Klein ◽  
Tobias Mueller ◽  
Klaus Plewa
Keyword(s):  
Powder Injection ◽  
Molded Parts ◽  
Injection Molded

A Study on the Birefringence Measurement in Injection Molded Parts Using Two Different Laser Sources and R-G-B Separation of White Light

2006 ◽  
Vol 326-328 ◽  
pp. 187-190
Author(s):  
Jong Sun Kim ◽  
Chul Jin Hwang ◽  
Kyung Hwan Yoon
Keyword(s):  
White Light ◽  
Low Cost ◽  
Main Idea ◽  
Injection Molding Process ◽  
Molding Process ◽  
Laser Method ◽  
High Productivity ◽  
Molded Parts ◽  
Injection Molded ◽  
Plastic Parts

Recently, injection molded plastic optical products are widely used in many fields, because injection molding process has advantages of low cost and high productivity. However, there remains residual birefringence and residual stresses originated from flow history and differential cooling. The present study focused on developing a technique to measure the birefringence in transparent injection-molded optical plastic parts using two methods as follows: (i) the two colored laser method, (ii) the R-G-B separation method of white light. The main idea of both methods came from the fact that more information can be obtained from the distribution of retardation caused by different wavelengths. The comparison between two methods is demonstrated for the same sample of which retardation is up to 850 nm.

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