Method for producing a cooled ring carrier

Details Method for producing a cooled ring carrier Method for producing a cooled ring carrier

2008-04-15

2008-04-15

Bryant, David P. (Department: 3726)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C092S227000

Reexamination Certificate

active

10519271

ABSTRACT:
The invention relates to a method for producing a cooled ring carrier (1) for an aluminium piston pertaining to an internal combustion engine and produced according to a casting method, comprising a cooling channel (6) which is embodied on the rear (3) of the ring carrier as a downwardly open turned groove (4) According to the invention, salt granules are pressed into the turned groove (4) at a pressure of between 100 and 300 N/mm2, in such a way that a salt core (5) is formed in the turned groove (4) The composite consisting of the ring carrier and the salt core is then immersed in an alfin bath.

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