| 铌合金注射成形脱脂工艺研究 |
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| 引用本文： | 段柏华,商继章,王德志,曲选辉,张德智. 铌合金注射成形脱脂工艺研究[J]. 稀有金属快报, 2011, 0(1): 54-57 |
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| 作者姓名： | 段柏华 商继章 王德志 曲选辉 张德智 |
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| 作者单位： | 中南大学材料科学与工程学院;中航工业哈尔滨东安发动机集团有限公司;北京科技大学材料科学与工程学院; |
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| 基金项目： | 中南大学校基金项目(C2009092) |
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| 摘 要： | 设计了一种适合于铌合金注射成形的低残碳粘结剂体系，为68％PW-5％LDPE-22％PMMA-5％SA（质量分数），并研究其脱脂工艺。结果表明：脱脂时间、温度及样品厚度对溶剂脱脂率影响显著。采用三氯乙烯为溶剂，在脱脂温度为40℃，溶剂脱脂6h，即可使粘结剂脱除率达到52．8％，使后继热脱脂时间缩短至7．5h。以粘结剂的DSC差热分析结果为指导，可快速制定合理的热脱脂工艺，在真空热脱脂气氛条件下可使脱脂坯残余碳、氧含量得到有效控制，分别为0．18％．0．25％．
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| 关 键 词： | 粉末注射成形 铌合金 粘结剂 溶剂脱脂 热脱脂 |
Research on Debinding Process of Niobium Alloys Compact by Powder Injection Molding |
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| DUAN Bohua,SHANG Jizhang,WANG Dezhi,QU Xuanhui,ZHANG Dezhi Corporation LTD,Harbin ,China). Research on Debinding Process of Niobium Alloys Compact by Powder Injection Molding[J]. Rare Metals Letters, 2011, 0(1): 54-57 |
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| Authors: | DUAN Bohua SHANG Jizhang WANG Dezhi QU Xuanhui ZHANG Dezhi Corporation LTD Harbin China) |
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| Affiliation: | DUAN Bohua1,SHANG Jizhang2,WANG Dezhi1,QU Xuanhui3,ZHANG Dezhi3(1.School of Materials Science and Engineering,Central South University,Changsha 410083,China)(2.AVIC Harbin Dongan Engine(Group) Corporation LTD,Harbin 150066,China)(3.School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China) |
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| Abstract: | A new type wax-based multi-component polymer binder suitable for niobium alloys,which was composed of 68 %(mass fraction,similarly hereinafter) paraffin wax(PW),5% low density polyethylene(LDPE),22 % polymethyl methacrylate(PMMA) and 5 % stearic acid(SA),was designed and the debinding process of compacts by powder injection molding was investigated.The results showed that the effects of solvent debinding temperature,time and sample thickness on the debinding rate were dominant.The removal rate of binder,abo... |
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| Keywords: | powder injection molding niobium alloy binder solvent debinding thermal debinding |
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