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| Research on preparation and application of the catalytic debinding feedstock for 304 stainless steel powder injection molding |
| JING Xiao-long，CHEN Hui，LIU Bing，DENG Ying |
| Research Institute for New Materials Technology， Chongqing University of Arts and Sciences， Chongqing 402160， China |
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Abstract With the polyoxymethylene (POM) as the main components of catalytic debinding binder， the feedstock for 304 stainless steel powder injection molding was prepared. The weight-loss process， debinding process and linear shrinkage ratio were analyzed， and the properties of sintered bars were detected. Results show that the suitable injection temperature is 180-200 ℃， the debinding temperature is below 250 ℃. The average density of injection blank is 5.399 g/cm3， and the average density of sintered samples is 7.829 g/cm3. The linear shrinkage ratio in the direction of length， width and height are 14.11%，14.02% and 14.21%， respectively. The microstructure of the sintered compacts is typical austenite.
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Received: 03 June 2016
Published: 09 June 2017
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| [1] Amir Arifin, Abu Bakar Sulong, et.al. Powder injection molding of HA/Ti6Al4V composite using palm stearin as based binder for implant material [J],Materials and Design,2015,65:1028-1034[2] H. Abolhasani, N. Muhamad, A new starch-based binder for metal injection molding[J], Journal of Materials Processing Technology, 2010,210:961-968[3]Muhammad Rafi Raza, Faiz Ahmad, Norhamidi Muhamad, et al, Effects of solid loading and cooling rate on the mechanical properties and corrosion behavior of powder injection molded 316L stainless steel[J], Powder technology, 2016, 289:135-142[4]H.Ozkan Gulsoy, Serdar Parzarliogly, Nagihan Gulsoy, et al, Effect of Zr, Nb and Ti addition on injection molded 316L stainless steel for bio-applications: Mechanical, electrochemical and biocompatibility properties[J], Journal of the mechanical behavior of biomedical materials, 2015,51:215-224[5]周红翠，范景莲，成会朝等. WC-Co硬质合金刀片注射成型参数优化研究[J]. 硬质合金. 2013,30(4):210-216[6]郭亚杰，王宏，陈俊之等. 后护理强化注射成形316L不锈钢精密件研究[J]. 热加工工艺. 2014, 43(14):175-177[7]Bloemacher M, Acetyl based feedstock for injection moulding and catalytic debinding[J], Metal Powder Report, 1998,53(1):40[8]周大纲,谢鸽成. 塑料老化与防老化技术[M].中国轻工业出版社, 1998,29-31[9]徐小明, 李笃信,吴谓等. 改进型催化脱脂型粘结剂及其应用研究[J].粉末冶金工艺,2015, 25(5):36-41[10] Gang Chen, Peng Cao, Guian Wen, et al, Debinding behavior of water soluble PEG/PMMA binder for Ti metal injection moulding[J], Meterials Chemistry and Physics, 2013,139:557-565[11]陈静，郭宝华，司文捷. 聚甲醛在新型陶瓷注射成型催化脱脂工艺中的应用[J]. 中国塑料.2002, 16(6):47-50[12]刘文胜，龙路平，马运柱. 催化脱脂型粘结剂组分的相容性[J]. 中国有色金属学报. 2012, 22(7):2097-2102[13]李笃信，黄伯云，曲选辉等. 新型金属注射成形催化脱脂型粘结剂的催化快速分解研究[J]. 2001, 9(3):256-258 |
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2017, Vol. 27 
