Polishing device
AssigneeMesser Griesheim GmbH
InventorsJohannes Lubbering, Peter Ihme, Jurgen Busse, Erwin Schmitz, Wolfgang Volker
Life of this patent
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Abstract
A polishing device has a working area into which cold gas is fed continuously in order to cool the partial work-piece surfaces where work is to be performed to a temperature at which no changes occur to the work-piece surface except for polishing.
Claims14
In a polishing device having a rotatable polishing disc which is movably mounted relative to the surface being treated, the improvement being in that a lambskin hood is mounted over the exposed work surface of said polishing disc, a feed line communicating with the area of said lambskin hood, means for feeding a cold-gas flow through said feed line and directed into said lambskin hood area during operation of said polishing device, said work surface being entirely disposed toward the surface being treated, said cold-gas flow being directed to exit from said entire work surface to be directed at the surface being treated, and said cold gas being selected from the group consisting of cold air and nitrogen and carbon dioxide having a temperature below minus 20.degree. C.
Dependencies are inferred from the claim text.