Arrangement for holding and cooling work pieces positioned next

Details Arrangement for holding and cooling work pieces positioned next Arrangement for holding and cooling work pieces positioned next

1991-04-19

1993-03-23

Jones, W. Gary

Coating apparatus

With heat exchange, drying, or non-coating gas or vapor...

Cooling

118500, 432223, 19880301, B65G 2900

Patent

active

051960621

ABSTRACT:
An arrangement for holding and cooling bearing shell blanks (2) positioned one next to the other during a coating process in a vacuum chamber, has cooling body and work piece holding pairs (3) which are detachable from each other and which are connected to one another via a cooling surface (9) and a heat transmission surface (7). A work piece holding part (5) of the cooling body and the work piece holding pair (3) is implemented so that the bearing shell blanks (2) are placed in a concave bearing surface (32) of the holding part during the coating process and are kept, over their entire surface, at a temperature determined by the cooling surface temperature. A temperature gradient can be formed if teflon foil strips are placed on the bearing surface. These allow only a direct heat contact of the apex of the bearing shell blanks (2) with the bearing surface. At the apex then, a deposition of fine particles with a high surface hardness, and at the margins a deposition of coarse particles with a correspondingly lesser surface hardness, take place. During the coating, the work piece holding parts (5) can already be loaded whereby the pass in the production of bearing shells (2) can be considerably shortened.

REFERENCES:
patent: 4891009 (1990-01-01), Pivit et al.
patent: 5058731 (1991-10-01), Corniani et al.

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