Yıl 2012,
Cilt: 27 Sayı: 2, 0 - , 19.02.2013
Öz
Bu çalışmada; steatitin enjeksiyonla hatasız kalıplanması için en uygun reoloji, bağlayıcı giderme ve kalıplamaparametreleri belirlenmiştir. Kılcal ve tork reometre çalışması ile dört farklı besleme stoğu için erime akışindeksi (554 - 988 g/10 dakika), akış davranış indeksi (0,507 - 0,601), akıcılık (5,21 - 8,99 x10-3Pa-1s-1) veaktivasyon enerjisi (26,9 - 39,1 kJ/mol) değerleri belirlenerek en ideal besleme stoğu tespit edilmiştir. Reolojikaçıdan en ideal besleme stoğu Steatit + polietilenglikol (PEG) + polipropilen (PP) + stearik asit (SA)’den oluşankarışımdır. Bu besleme stoku için farklı akış hızı (15-25 cm3), silindir sıcaklığı (185-200 0C) ve enjeksiyonbasıncı (1000-1350 bar) değerleri için kalıplama yapılmıştır. Kalıplanmış numunelere bağlayıcı giderme işlemiçözgen ve ısıl olmak üzere iki şekilde gerçekleştirilmiştir. Isıl bağlayıcı giderme 100C/dakika ve 10C/dakikaısıtma hızında gerçekleştirilmiştir. Sonrasında optimum reoloji, bağlayıcı giderme ve kalıplama parametreleri ileüretilmiş numunelere SEM incelemesi yapılmıştır. Çarpılma, iç çatlak ve deformasyona rastlanmayan finalparçaları elde edilmiştir.
Anahtar Kelimeler
STEATİTİN ENJEKSİYONLA KALIPLANABİLİRLİĞİNE BESLEME STOK REOLOJİLERİNİN ETKİSİNİN ARAŞTIRILMASI
Kaynakça
- German R.M., Powder Injection Molding, Metal
- Powder Industries Federation, Princeton, USA, 1990.
- German R.M. and Bose A., Injection Molding of
- Metals and Ceramics, Metal Powder Industries
- Federation, Princeton, USA, 1997.
- Mutsuddy B.C., R.G. Ford, Ceramic Injection
- Molding, Chapman and Hall, UK, 1995.
- Ahn S., Chung S.T., Atre S.V., Park S.J., German
- R.M., Integrated filling, packing, and cooling CAE
- analysis of powder injection molding parts, Powder
- Metallurgy,Vol. 51, No: 4, pp. 318–326, 2008.
- Yang W.W., Yang K.Y., Hon H.H., Solvent
- debinding mechanism for alumina injection molded
- compact with water-soluble binders, Ceramic
- International, 29 (7), 745-756, 2003.
- Bandyopadhyay G. and French K.W., Injection
- molded ceramics: critical aspects of the binder
- removal process and component fabrication, J. Eur.
- Ceram. Soc., 11, 23–34, 1993.
- Hwang K.S. and Tsou T.H., Thermal debinding of
- powder injection molded parts: observations and
- mechanisms, Metall. Trans., 23A, 2775–2782, 1992.
- Verweij H. and Bruggink W.H.M., Reactioncontrolled
- binder burnout of ceramic multilayer
- capacitors, J. Am. Ceram. Soc., 73, 226–231, 1990.
- Woodthorpe J., Edirisingheand M.J. and Evans
- J.R.G., Properties of ceramic injection moulding
- formulations, Part 3: Polymer Removal. J. Mater.
- Sci., 24, 1038–1048, 1989.
- Supati R., et al., Mixing and characterization of
- feedstock for powder injectionmolding, Materials
- Letters, 46, (2-3), 109-114, 2000.
- Lin, H. K. and Hawang, K.S., In situ dimensional
- changes of powder injection molded compact during
- solvent debinding, Acta. Mater., 46 (12), 4303-4309,
- -
- Goodship, V., Practical guide to injection
- moulding, Rapra Technology, Shawbury, 2004.
- Thomas-Vielma, A. Cervera, B. Levenfeld, A.
- Várez, Production of alumina parts by powder
- injection molding with a binder system based on high
- density polyethylene, Journal of the European
- Ceramic Society, 28(4), 763-771, 2008.
- Merz L., et al., Feedstock development for micro
- powder injection molding, Microsyst. Technol., 8,
- -132, 2002.
- Angermann H.H. and Biest O.V., Rev.
- Particulate Mater., 3, 35, 1995
- Gorjan L., Dakskobler A., Kosmač T., Partial
- wick-debinding of low-pressure powder injectionmoulded
- ceramic parts, Journal of the European
- Ceramic Society, 30 (15), 3013-3021, 2010.
- Redy J.J., Ravi N., Vijayakumar M., Simple
- model viscosity of powder injection mouldingmixez
- with binder content above powder critical binder
- volume concentration, J.Eur. Ceram. Soc., 20, 2183-
- , 2000.
- Hsu K.C., Lin C.C. Lo G.M., Efferct of wax
- composition on injection moulding of 304 L stainless
- steel powder, Powder Metal., 37, 272-276, 1994.
- Zhang T., Evans J.R.G., Woodhorpe J., Injection
- moulding of silicon carbide using on organic vehicle
- based on a preceramic polymer, J. Eur. Ceram. Soc.
- , 729-734, 1995
- Hens K.F., German R.M., Advanced processing of
- advanced materials via powder injection molding,
- Advances in Powder Mettalurgy and Particulate
- Materials, 5, 153-164, 1993.
- Amaya H.E., Solvent dewaxing: principles and
- application, in Proceedings of the Powder Metallurgy
- Conferences on Advances in Powder Metallurgy,
- , 233-246, 1990.
- Urtekin L., Toz Enjeksiyon Kalıplanmış Steatit
- Seramiklerin Özelliklerine Kalıplama Ve Sinterleme
- Parametrelerinin Etkisinin Deneysel Olarak
- İncelenmesi, Doktora Tezi, Gazi Üniversitesi Fen
- Bilimleri Enstitüsü, 2008.
- Mutsuddy B.C., Injection molding research paves
- way to ceramic engine parts, J. Ind. Res. Dev., 25b,
- -80, 1983.
- F. Moore, Rheology of ceramic systems, Institute
- of Ceramics, UK, 18, 1965.
- Edirisinghe M.J., Shaw H.M., Tomkins K.L., Flow
- behavior of ceramics injection moulding suspensions,
- Ceramic International, 18, 193-200, 1992.
- Shibo G., Xuanhui Q., Xinbo H., Ting Z.,
- Bohuave D., Powder injection molding of Ti–6Al–4V
- alloy, Journal of Materials Processing Technology,
- (3), 310-314, 2006.
- Yang W.W., Yang K.Y., Hon H.H., Effect of PEG
- molecular weight on rheological behaviour of alumina injection molding feedstock, Materials Chemistry
- and Physics, 78, 416-424, 2002.
- Karataş, Ç.,Sarıtaş, S., Powder Injection Molding:
- A High Technology Manufacturing Process, Journal
- of The Faculty of Engineering and Architecture of
- Gazi University, 13/2, 193-228,1998.
- Edirisinghe M.J., Evans J.R.G., Rheology of
- ceramic injection molding formulations, Ceramic
- Trans. J., 86, 18-22, 1987.
- Karatas C., Kocer A., Ünal H. I., Saritas S.,
- Rheological properties of feedstocks prepared with
- steatite powder and polyethylene-based thermoplastic
- binders, Journal of Materials Processing
- Technology, 152 (1), 77-831, 2004.
- CaO M.Y., Rhee B.O, Chuy CI., Usefulness of
- viscosity measurement of feedstock in powder
- injection molding, Advances in Powder Metallurgy,
- , MPIF, Princeton, NJ, USA, 1991.
- Urtekin L, Uslan I. and Tuc B., Investigation of
- Properties of Powder Injection-Molded Steatites,
- Journal of Materials Engineering and
- Performance, 21 (3), 358-365, 2012.
Yıl 2012,
Cilt: 27 Sayı: 2, 0 - , 19.02.2013
Öz
Kaynakça
- German R.M., Powder Injection Molding, Metal
- Powder Industries Federation, Princeton, USA, 1990.
- German R.M. and Bose A., Injection Molding of
- Metals and Ceramics, Metal Powder Industries
- Federation, Princeton, USA, 1997.
- Mutsuddy B.C., R.G. Ford, Ceramic Injection
- Molding, Chapman and Hall, UK, 1995.
- Ahn S., Chung S.T., Atre S.V., Park S.J., German
- R.M., Integrated filling, packing, and cooling CAE
- analysis of powder injection molding parts, Powder
- Metallurgy,Vol. 51, No: 4, pp. 318–326, 2008.
- Yang W.W., Yang K.Y., Hon H.H., Solvent
- debinding mechanism for alumina injection molded
- compact with water-soluble binders, Ceramic
- International, 29 (7), 745-756, 2003.
- Bandyopadhyay G. and French K.W., Injection
- molded ceramics: critical aspects of the binder
- removal process and component fabrication, J. Eur.
- Ceram. Soc., 11, 23–34, 1993.
- Hwang K.S. and Tsou T.H., Thermal debinding of
- powder injection molded parts: observations and
- mechanisms, Metall. Trans., 23A, 2775–2782, 1992.
- Verweij H. and Bruggink W.H.M., Reactioncontrolled
- binder burnout of ceramic multilayer
- capacitors, J. Am. Ceram. Soc., 73, 226–231, 1990.
- Woodthorpe J., Edirisingheand M.J. and Evans
- J.R.G., Properties of ceramic injection moulding
- formulations, Part 3: Polymer Removal. J. Mater.
- Sci., 24, 1038–1048, 1989.
- Supati R., et al., Mixing and characterization of
- feedstock for powder injectionmolding, Materials
- Letters, 46, (2-3), 109-114, 2000.
- Lin, H. K. and Hawang, K.S., In situ dimensional
- changes of powder injection molded compact during
- solvent debinding, Acta. Mater., 46 (12), 4303-4309,
- -
- Goodship, V., Practical guide to injection
- moulding, Rapra Technology, Shawbury, 2004.
- Thomas-Vielma, A. Cervera, B. Levenfeld, A.
- Várez, Production of alumina parts by powder
- injection molding with a binder system based on high
- density polyethylene, Journal of the European
- Ceramic Society, 28(4), 763-771, 2008.
- Merz L., et al., Feedstock development for micro
- powder injection molding, Microsyst. Technol., 8,
- -132, 2002.
- Angermann H.H. and Biest O.V., Rev.
- Particulate Mater., 3, 35, 1995
- Gorjan L., Dakskobler A., Kosmač T., Partial
- wick-debinding of low-pressure powder injectionmoulded
- ceramic parts, Journal of the European
- Ceramic Society, 30 (15), 3013-3021, 2010.
- Redy J.J., Ravi N., Vijayakumar M., Simple
- model viscosity of powder injection mouldingmixez
- with binder content above powder critical binder
- volume concentration, J.Eur. Ceram. Soc., 20, 2183-
- , 2000.
- Hsu K.C., Lin C.C. Lo G.M., Efferct of wax
- composition on injection moulding of 304 L stainless
- steel powder, Powder Metal., 37, 272-276, 1994.
- Zhang T., Evans J.R.G., Woodhorpe J., Injection
- moulding of silicon carbide using on organic vehicle
- based on a preceramic polymer, J. Eur. Ceram. Soc.
- , 729-734, 1995
- Hens K.F., German R.M., Advanced processing of
- advanced materials via powder injection molding,
- Advances in Powder Mettalurgy and Particulate
- Materials, 5, 153-164, 1993.
- Amaya H.E., Solvent dewaxing: principles and
- application, in Proceedings of the Powder Metallurgy
- Conferences on Advances in Powder Metallurgy,
- , 233-246, 1990.
- Urtekin L., Toz Enjeksiyon Kalıplanmış Steatit
- Seramiklerin Özelliklerine Kalıplama Ve Sinterleme
- Parametrelerinin Etkisinin Deneysel Olarak
- İncelenmesi, Doktora Tezi, Gazi Üniversitesi Fen
- Bilimleri Enstitüsü, 2008.
- Mutsuddy B.C., Injection molding research paves
- way to ceramic engine parts, J. Ind. Res. Dev., 25b,
- -80, 1983.
- F. Moore, Rheology of ceramic systems, Institute
- of Ceramics, UK, 18, 1965.
- Edirisinghe M.J., Shaw H.M., Tomkins K.L., Flow
- behavior of ceramics injection moulding suspensions,
- Ceramic International, 18, 193-200, 1992.
- Shibo G., Xuanhui Q., Xinbo H., Ting Z.,
- Bohuave D., Powder injection molding of Ti–6Al–4V
- alloy, Journal of Materials Processing Technology,
- (3), 310-314, 2006.
- Yang W.W., Yang K.Y., Hon H.H., Effect of PEG
- molecular weight on rheological behaviour of alumina injection molding feedstock, Materials Chemistry
- and Physics, 78, 416-424, 2002.
- Karataş, Ç.,Sarıtaş, S., Powder Injection Molding:
- A High Technology Manufacturing Process, Journal
- of The Faculty of Engineering and Architecture of
- Gazi University, 13/2, 193-228,1998.
- Edirisinghe M.J., Evans J.R.G., Rheology of
- ceramic injection molding formulations, Ceramic
- Trans. J., 86, 18-22, 1987.
- Karatas C., Kocer A., Ünal H. I., Saritas S.,
- Rheological properties of feedstocks prepared with
- steatite powder and polyethylene-based thermoplastic
- binders, Journal of Materials Processing
- Technology, 152 (1), 77-831, 2004.
- CaO M.Y., Rhee B.O, Chuy CI., Usefulness of
- viscosity measurement of feedstock in powder
- injection molding, Advances in Powder Metallurgy,
- , MPIF, Princeton, NJ, USA, 1991.
- Urtekin L, Uslan I. and Tuc B., Investigation of
- Properties of Powder Injection-Molded Steatites,
- Journal of Materials Engineering and
- Performance, 21 (3), 358-365, 2012.
Toplam 112 adet kaynakça vardır.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 19 Şubat 2013 |
| Gönderilme Tarihi | 19 Şubat 2013 |
| Yayımlandığı Sayı | Yıl 2012 Cilt: 27 Sayı: 2 |