采用统计分析的方法系统研究了原料粉末特性如粒度和粒度分布、颗粒形状、粉末比表面积对PIM工艺过程的影响规律,从原料粉末的特性参数中筛选出显著影响喂料性能和PIM工艺过程的参数,并建立相应的经验模型.振实密度与粉末特性的关系式为:ft=235.0+0.20Dv+32.18σ-29.17Sw-26.81Ar,粉末流动性与粉末特性的关系式为Mi=240.38-33.54Sw-32.08Ar,注射温度、注射压力和保压时间与粉末特性表达式分别为Ti=12.35+1.86σ-16.0Sw+145.5Ar,Pp=-289.63-18.35Sw+256.28Ar,th=-2.36+5.63Ar+0.10Dv-0.95Sw.
参考文献
| [1] | EYLON D;NEWMAN J R;THONE J K.Titanium and titanium alloy casting[A].ASM International,1992:634-646. |
| [2] | 罗国珍;周廉;邓炬 .钛在中国的研究进展[J].稀有金属材料与工程,1997,26(05):1-6. |
| [3] | KANEKO Y .Injection molding of Ti powder[J].Journal of the Japan Society of Powder and Powder Metallurgy,1988,35(07):74-78. |
| [4] | GERMAN R M;曲选辉.粉末注射成形[M].长沙:中南大学出版社,2001 |
| [5] | R.M.German .Worldwide Market and Technology for Powder Injection Molding[J].International Journal of Powder Metallurgy,1997(4):23-26. |
| [6] | 郭世柏,曲选辉.金属注射成形粘结剂的研究进展[J].粉末冶金技术,2004(03):178-182. |
| [7] | GUO Shi-bo;QU Xuan-hui;HE Xin-bo .Mechanical properties and microstructure of Ti-6Al-4V compacts by metal injection molding[J].Transactions of Nonferrous Metals Society of China,2004(6):1055-1061. |
| [8] | HAUGHEY D P;BEVERIDGE G .Structural properties of packed beds-a review[J].Canadian Journal of Chemical Engineering,1969,47(01):130-170. |
| [9] | JIA X;WILLIAMS R A .A packing algorithm for particles of arbitrary shapes[J].Powder Technology,2001,120(03):175-186. |
| [10] | SOHN H Y .The effect of particle size distribution on packing density[J].Canadian Journal of Chemical Engineering,1968,46:162-175. |
| [11] | HSIEH H P .Effect of particle size distribution and shape on bulk properties of Calcines Alumina[J].Journal of Powder and Bulk Solids Technology,1986,10(02):1-6. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%