Method for the manufacture of thermoplastic heat exchangers

Details Method for the manufacture of thermoplastic heat exchangers Method for the manufacture of thermoplastic heat exchangers

B - Operations, Transporting

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26/147, 257/23

B23P 15/26 (2006.01) B29D 99/00 (2010.01) B23P 15/04 (2006.01) B29C 49/00 (2006.01) B29C 65/48 (2006.01) B29C 69/00 (2006.01) F28F 21/06 (2006.01)

Patent

CA 1329472

ABSTRACT OF THE DISCLOSURE A method is disclosed for the manufacture of panel heat exchangers from thermoplastic polymers. At least one sheet is coated with a coating that facilitates bonding of the polymer to itself under the influence of heat. Two sheets, at least one of which has been coated, are placed between moulds in a press. At least one of the moulds has grooves corresponding to the pattern of fluid flow passages to be provided in the panel heat exchanger. The moulds are heated and an inert gas e.g. nitrogen, is applied and passed through the fluid flow passages, to assist in the formation of the passages and to remove any volatile material from the coating. The preferred polymer is polyamide and the preferred coating is benzyl alcohol, phenol and polyamide. The heat exchangers may be used in a variety of end-uses, especially in automotive end-uses.

596060

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