Method for bonding ceramic casting cores

Details Method for bonding ceramic casting cores Method for bonding ceramic casting cores

1987-09-21

1988-08-30

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156242, 156245, 264 60, 264 62, 264 63, 2643282, B32B 1800

Patent

active

047674792

ABSTRACT:
The surface of green (unsintered) casting cores which contain ceramic particles and a thermoplastic binder are bonded to each other by softening the binder in each core and applying a layer of ceramic particles to the surface of at least one of the cores to be joined, assembling the cores to each other such that the core surfaces are in close contact with each other; causing the binder to reharden; and then heating the cores to volatilize the thermoplastic binder and to sinter the ceramic particles in the cores to each other.

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