Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1988-09-07
1991-07-16
Fisher, Richard V.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156667, 252 792, C25F 300
Patent
active
050322150
ABSTRACT:
Combinations of frictional and sealing elements made from hard substances, such as sintered aluminum oxide, are ground and lapped at their surfaces of engagement. At least one surface has at least some micro-blurred areas. The micro-blurring is produced by chemical etching. Phosphoric acid can be used as the chemical etching, and in thermal etching, the etching temperature is between 1400.degree. and 1560.degree. C.
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Dworak Ulf
Fingerle Dieter
Friederich Kilian
Olapinski Hans
Bruckner John J.
Feldmuhle Aktiengesellschaft
Fisher Richard V.
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