Abstract
In a new approach to powder injection moulding, BASF has developed a new, polyacetal-based binder system. The rheological properties of the binder enable part dimensions and shapes that were previously impossible to mould. Debinding is achieved by a new catalytic process: The polyacetal binder is depolymerised in the presence of an acidic gas and volatilises as formaldehyde. Debinding proceeds from the surface inward with a speed of up to 2 mm/h, which is more than ten times faster than the conventional debinding technology allows. The low debinding temperature excludes warping, sagging or slumping.
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References
M.J. Edirisinghe and J.R.G. Evans, Int. J. High Technology Ceramics 2 (1986) 1–31
M.J. Edirisinghe and J.R.G. Evans, Int. J. High Technology Ceramics 2 (1986) 249–278
R.E. Wiech, US Patent 4 404 166 (1983)
S. Ito and T. Mizuno, European Patent 0 125 912 (1987)
K. Kato, M. Shirai and A. Nagoya, German Patent 36 30 690 (1989)
M. Inoue, Y. Kihara and Y. Arakida, Interceram. 2 (1989) 53–57
T. Miyashita, Y. Ueno, H. Nishio and S. Kubodera, European Patent 0 202 852 (1990)
S. Sasaki, US Patent 4 701 106 (1987)
T. Matsuhisa, S. Sasaki, German Patent 35 07 804 (1989)
C.L. Ouackenbush, K. French and J.T. Neil, Ceram. Eng. Sci. Proc. 1 (1982) 20–34
J.A. Mangels and W. Trela, Adv. Ceramics 2 (1984) 220–233
G. Farrow and A.B. Conciatori, European Patent 0 114 746 (1989)
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© 1992 Elsevier Science Publishers Ltd and MPA Stuttgart
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Ter Maat, J.H.H., Ebenhöch, J., Sterzel, HJ. (1992). Fast Catalytic Debinding of Injection Moulded Parts. In: Carlsson, R., Johansson, T., Kahlman, L. (eds) 4th International Symposium on Ceramic Materials and Components for Engines. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2882-7_58
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DOI: https://doi.org/10.1007/978-94-011-2882-7_58
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-85166-776-5
Online ISBN: 978-94-011-2882-7
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