飽和度對金屬射出成形製程中毛細吸附脫脂之影響

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：10

、訪客IP：18.217.109.151

姓名

鄭嘉雄(Jian-Xong Zhen ) 查詢紙本館藏

畢業系所

機械工程研究所

論文名稱

飽和度對金屬射出成形製程中毛細吸附脫脂之影響

相關論文

★ 迴轉式壓縮機泵浦吐出口閥片厚度對性能影響之研究	★ 鬆弛時間與動態接觸角對旋塗不穩定的影響
★ 電化學製作針錐微電極之製程研究與分析	★ 蚶線形滑轉板轉子引擎設計與實作
★ 利用視流法分析金屬射出成形脫脂製程中滲透度與毛細壓力之關係	★ 應用離心法實驗探求多孔介質飽和度與毛細力之關係
★ 利用網絡模型數值模擬粉末射出成形製程毛細吸附脫脂機制	★ 轉注成形充填過程之巨微觀流數值模擬
★ 二維熱流效應對電化學加工反求工具形狀之分析	★ 金屬粉末射出成形製程中胚體毛細吸附脫脂之數值模擬與實驗分析
★ 轉注成型充填過程巨微觀流交界面之數值模擬	★ 轉注成型充填過程中邊界效應之數值模擬
★ 鈦合金整流板電化學加工技術研發	★ 射出/壓縮轉注成型充填階段中流場特性之分析
★ 脈衝電化學加工過程中氣泡觀測與分析	★ 金屬粉末射出成型二維毛細吸附脫脂及飽和度之研究

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

金屬粉末射出成形中最複雜、也最耗時的毛細吸附脫脂過程是決
定產品良窳甚巨的重要製程之一。其不僅許多缺陷容易在此製程產
生，而且也是限制整個金屬射出成形產能的主要關鍵。
在毛細脫脂的過程中，當黏結劑因毛細力脫離胚體時，流動波前
會有指狀效應的產生。因此，在各個位置和時間會有不同的飽和度值
加入影響脫脂時間的參數。本文探討飽和度對整個毛細吸附脫脂機制
的影響。以數值模擬胚體和吸附材內部之黏結劑受毛細吸附作用後，
整個脫脂過程之壓力場和飽和度的分佈，並且預測毛細吸附脫脂的時
間，再將數值結果和沒有考慮飽和度時做比較。

摘要(英)

Wick-debinding process is the most intricate and time consuming
step in metal injection molding (MIM). It is not only the source of many
defects, but also the key point of the limitation in MIM process.
During the removal of the binder from the compact in wick-debinding
process, the fingering defect will occur on the flow front of the molten
binder. Therefore, there are different saturation at each place and affect the
total wick-debinding time. In this study, we discuss the influence of the
saturation to wick-debinding mechanism. The numerical method is used to
simulate the probability of pressure field and saturation on compact and
binder by wick-debinding process, and predict the wick-debinding time.
we also compare the relationship between with and without saturation
effect.

關鍵字(中)

★ 毛細吸附脫脂
★ 達西定律
★ 金屬射出成形
★ 飽和度

關鍵字(英)

★ Darcy’s law
★ metal injection molding
★ wick-debinding

論文目次

摘要…………………………………………………………………… Ⅰ
英文摘要……………………………………………………………… Ⅱ
目錄…………………………………………………………………… Ⅲ
表目錄………………………………………………………………… Ⅴ
圖目錄………………………………………………………………… Ⅵ
符號說明……………………………………………………………… Ⅶ
第一章、序論………………………………………………………… 1
1-1 簡介…………………………………………………… 1
1-2 MIM 的製造程序 …………………………………… 2
1-3 MIM 的工程問題 …………………………………… 3
1-4 文獻回顧……………………………………………… 9
1-5 研究目標……………………………………………… 17
第二章、理論模式…………………………………………………… 20
2-1 基本假設……………………………………………… 20
2-2 統御方程式的建立…………………………………… 20
2-3 飽和度………………………………………………… 21
2-4 毛細吸附脫脂機制之預測…………………………… 22
2-5 孔隙率………………………………………………… 23
2-6 滲透率………………………………………………… 23
2-7 毛細壓力……………………………………………… 24
2-8 無因次參數…………………………………………… 25
IV
第三章、數值方法…………………………………………………… 26
3-1 數值技巧……………………………………………… 26
3-2 數值計算流程………………………………………… 27
3-3 格點獨立性…………………………………………… 28
第四章、結果與討論………………………………………………… 29
4-1 數值模擬結果………………………………………… 29
4-2 無因次分析…………………………………………… 30
4-3 粉末粒徑對脫脂時間的影響………………………… 31
第五章、結論………………………………………………………… 33
第六章、參考文獻…………………………………………………… 35
表……………………………………………………………………… 42
圖……………………………………………………………………… 44

參考文獻

1. 陳文信, 金屬粉末射出成形技術, 機械工業雜誌, Vol. 154, pp.
148-158 (1996).
2. B. Haworth and P. J. James, “Injection Moulding of Powders”, Metal
Powder Report, pp. 146-149 (1986).
3. K. F. Hens, T. J. Roche, J. A. Grohowski, “Thermat Sets up for
Precision PIM”, Metal Powder Report, pp. 24~28 (1996).
4. Karl. F. Hens, “Thermat Expands Precision PIM Operation”, Metal
Powder Report, pp. 18~22 (1998).
5. R. M. German, K. F. Hens, “Key Issue in Powder Injection Molding”,
Ceramic Bulletin, Vol. 70, No. 8, pp. 1294-1302 (1991).
6. 劉世騏, 合金增進粉末射出成形鐵鎳基材料之性能, 台灣工業技術學
院機械工程研究所碩士論文 (1995).
7. 鄒宗漢, 射出成形法中脫脂製程之研究, 台灣大學材料科學與工程學
研究所碩士論文 (1991).
8. 周村裕幸, 金屬粉末射出成形製程, 粉末冶金月刊, p. 31-40 (1997).
9. R. M. German, Powder Injection Molding, Metal Powder Industries
Federation, Princetion, NJ, pp. 321-346 (1990).
10. J. Woodthorpe, M. J. Edirisinghe and J. R. G. Evans, “Properties of
Ceramic Injection Moulding Formation”, Metal. Sci., Vol. 24, pp.
1038-1048 (1989).
11. J. G. Zhang, M. J. Edirisinghe and J. R. G. Evans, ”A Catalogue of
Ceramic Injection Moulding Defects and Their Causes”, Industrial
36
Ceramics, 9, pp. 72-82 (1989).
12. 李孝忠, 金屬射出成形真空脫脂機構之研究, 台灣大學材料科學與
工程學研究所碩士論文 (1997).
13. 王令儀, 非鐵金屬材料粉末射出成型技術, 粉末冶金會刊, 第24 卷,
第3 期, pp. 160-169 (1999).
14. 黃坤祥, 台灣MIM 研究動態, 粉末冶金會刊, 第20 卷, 第3 期,pp.
175-179 (1995).
15. A. D. Hanson and S. C. Perruzza, “Optimizing Component Designs for
Metal Injection Molding”, Int. J. Powder Metall., Vol.36, No.3, pp. 37-42
(2000).
16. R. T. Fox and Daeyong Lee, ”Optimization of Metal Injection Molding :
Experimental Design”, Int. J. Powder Metall., vol. 26, No. 3, pp. 233-243
(1990).
17. J. R. Gaspervich, “Practical Application of Flow Analysis in Metal
Injection Molding”, Int. J. Powder Metall., Vol. 27, No. 2, pp. 133-139
(1991).
18. L. F. Pease III, “Present Status of PM Injection Moulding(MIM) – An
Overview”, MPR, pp. 242-254 (1988).
19. R. S. Libb, B. R. Patterson and H. A. Heilin, “Production and
Evaluation of PM Injection Moulding Feedstocks”, MPR, pp. 255-258
(1988).
20. G. R. White and R. M. German, “Effect of Processing Conditions on
Powder Injection Molded 316L Stainless Steel”, Adv. in Powder Metall.&
Part. Mater., Vol. 4, pp. 185 (1994).
37
21. K. M. Kulkarni, “Dimensional Precision of MIM Parts Under
Production Conditions”, Int. J. Powder Metall., Vol. 33, No. 4, pp. 29-41
(1997).
22. M. Dutilly, O. Ghouati and J. C. Gelin, “Finite-Element Analysis of the
Debinding and Desification Phenomena in the Process of Metal Injection
Molding”, J. Mater. Process. Tech., Vol. 83, pp. 170-175 (1998).
23. J. R. Merhar, “Overview of Metal Injection Moulding”, MPR, pp.
339-342 (1990).
24. K. M. Kulkarni, “Metal Powders and Feedstocks for Metal Injection
Molding”, Int. J. Powder Metall., Vol. 36, No. 3, pp. 43-52 (2000).
25. L. Nyborg, E. Carlstrom, A. Warren and H. Bertilsso, “Guide to
Injection Molding of Ceramics and Hardmetals : Special Consideration of
Fine Powder”, Powder Metall., Vol. 41, No. 1, pp. 41-45 (1998).
26. M. T. Martyn, D. A. Issitt, B. Haworth and P. J. James, “Injection
Moulding of Powders”, Powder Metall., Vol. 31, No. 2, pp. 106-111
(1988).
27. C. M. Kipphut and R. M. German, “Powder Selection for Shape
Retention in Powder Injection Molding”, Int. J. Powder Metall., Vol. 27,
No. 2, pp. 117-124 (1991).
28. R. Miura and S. Takamori, “Effects of Powder Characteristics and
Debinding Conditions on Deformation Behavior of Injection Molded
Compacts During Thermal Debinding”, ibid, Ref. 4, pp. 359 (1976).
29. B. K. Lograsso, A. Bose, B. J. Carpenter, C. I. Chung, K. F. Hens, D.
Lee, S. T. Lin, C. X. Liu, R. M. German, R. M. Messler, P. F. Murley, B.
O. Rhee, C. M. Sierra and J. Warren, “Injection of carbonyl iron with
Polyethylene Wax”, Int. J. Powder Metall., Vol. 25, No. 4, pp. 337-348
38
(1989).
30. K. C. Hsu and G. M. Lo, “Effect of Binder Composition on Rheology of
Iron Powder Injection Moulding Feedstocks : Experimental Design”,
Powder Metall., Vol. 39, No. 4, pp. 286-290 (1996).
31. K. C. Hsu, C. C. Lin and G. M. Lo, “Effect of Wax Composition on
Injection Moulding of 304L Stainless Steel Powder”, Powder Metall., Vol.
37, No. 4, pp. 272-276 (1994).
32. K. F. Hens, S. T. Lin, R. M. German and D. Lee, “The Effects of Binder
on the Mechanical Properties of Carbonyl Iron Products”, JOM, pp.
17-21 (1989).
33. H. H. Angermann, F. K. Yang and O. van der Biest, “Removal of Low
Molecular Weight Components During Thermal Debinding of Powder
Compacts”, J. Mater. Sci., Vol. 27, pp. 2534-2538 (1992).
34. H. H. Angermann and Omer van der Biest, “Removal of Low Molecular
Weight Components in Thermal Debinding of MIM Compacts”, Int. J.
Powder Metall., Vol. 30, No. 4, pp. 445-452 (1994).
35. D. P. Duncavage and C. W. Finn, “Debinding and Sintering of Metal
Injection Molded 316L Stainless Steel”, Adv. in Powder Metall. & Part.
Mater., Vol. 5, pp. 91 (1993).
36. Y. S. Zu, S. T. Lin, “Optimizing the Mechanical Properties of Injection
Molded W-4.9%Ni-2.1%Fe in Debinding”, J. Mater. Process. Tech., Vol.
71, pp. 337-342 (1997).
37. 楊偉文, 楊開雲, 洪敏雄, 金屬射出成形用水溶性黏結劑之研究,粉
末冶金會刊, 第24 卷, 第1 期, pp. 24-29 (1999).
38. C. W. Finn, “Vacuum Binder Removal and Collection”, Int. J. Powder
39
Metall., Vol. 27, No. 2, pp.127-132 (1991).
39. Tai-Shing Wei and Randall M. German, “Injection Molded Tungsten
Heavy Alloy”, Int. J. Powder Metall., Vol. 24, No. 4, pp. 327-335 (1988).
40. H. Zhang, R. M. German and A. Bose, “Wick Debinding Distortion of
Injection Molded Powder Pompacts” Int. J. Powder Metall., Vol. 26, No.
3, pp. 217- 230 (1990).
41. R. M. German, “Theory of Thermal Debinding”, Int. J. Powder Metall.,
Vol. 23, No. 4, pp. 237-245 (1987).
42. B. K. Lograsso, R. M. German, “Thermal Debinding of Injection
Molded Powder Compacts”, pmi, Vol. 22, No. 1, pp. 17-22 (1990).
43. B. R. Patterson and C. S. Aria, “Debinding Injection Molded Materials
by Melt Wicking”, JOM, pp. 22-24 (1989).
44. R. Vetter, M. J. Sanders, I. Majewska-Glabus, L. Z. Zhuang and J.
Duszczyk, “Wick-Debinding in Powder Injection Molding”, Int. J.
Powder Metall., Vol. 30, No. 1, pp. 115-124 (1994).
45. R. Vetter, W. R. Horninge, P. J. Vervoort, I. Majewska-Glabus, L. Z.
Zhuang, J. Duszczyk, “Squared Root Wick Debinding Model for Powder
Injection Moulding”, Powder Metall., Vol. 37, No. 4, pp. 265-271 (1994).
46. F. A. L. Pullien, Porous Media Fluid Transport and Pore Structure,
Academic Press, N.Y. (1979).
47. N. R. Morrow, reprinted as a chapter in “Flow Through Porous Media”,
Ind. Eng. Chem., Vol. 62, pp. 32 (1970).
48. N. R. Morrow, Bull. A. A. P. G., Vol. 55, pp. 514 (1971).
49. C. R. McEWEN, “A Numerical Solution of the Linear Displacement
Equation with Capillary Pressure”, Petroleum Transactions, AIME, Vol.
216, pp. 421-415 (1959).
40
50. K. S. Hwang, R. M. German and F. V. Lenel, “Capillary Forces Between
Spheres During Agglomeration and Liquid Phase Sintering”, Metall.
Trans., Vol. 18A, pp. 11-17 (1987).
51. A. Bose and R. M. German, “Sintering Atmosphere Effects on the
Ductility of W-Ni-Fe Heavy Metals”, Metall. Trans., Vol. 15A, pp.
747-754 (1984).
52. L. L. Bourguignon and R. M. German, “Sintering Temperature Effects
on a Tungsten Heavy Alloys”, Int. J. Powder Metall., Vol. 24, pp.
115-121 (1988).
53. Carlos A. Grattoni, Richard A. Dawe, ”Anisotropy in Pore Structure of
Porous Media”, Powder Technology, Vol. 85, pp. 143-151 (1995).
54. Y. Oyama, K. Yamaguchi, ”The Distribution of Liquid Content
Equilibrium of Powder Bed” ,Rep. Inst. Phys. Chem. Res., Vol. 38, pp.
392-400 (1962).
55. C. S. Aria, B.R. Petterson, “Influence of Process Variables on
Debinding by Melt Wicking“, Modern Development in Powder
Metallurgy, vol. 18, pp. 403-416 (1988).
56. 鄭育宗, 金屬射出成形二維毛細脫脂機制之數值模擬, 中央大學
機械工程研究所碩士論文 (1999).
57. 柳立明, 金屬射出成形中毛細吸附脫脂製成參數之最佳化分析,
中央大學機械工程研究所碩士論文 (1999).
58. 吳瑋芳, 利用視流法分析金屬射出成形脫脂製程中滲透度與毛細
壓力之關係, 中央大學機械工程研究所碩士論文 (2000).
41
59. 陳釧鋒, 利用網絡模型數值模擬粉末射出成形製程毛細吸附脫脂
機制, 中央大學機械工程研究所碩士論文 (2000).
60. 陳志誠, 金屬粉末射出成形製程中胚體毛細吸附脫脂之數值模擬
與實驗, 中央大學機械工程研究所博士論文 (2001).

指導教授

洪勵吾(Lih-Wu Hourng)

審核日期

2001-7-17

推文