Iron sponge briquetting press
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United States of America Patent
Stats
-
Jun 1, 1993
Grant Date -
N/A
app pub date -
Jun 27, 1991
filing date -
Jun 28, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an iron sponge briquetting press having two opposite rollers. The rollers consist of a roller base body and a coating affixed thereto, in which the moulding recesses for shaping the briquettes are formed. In order to provide less expensive roller coatings as compared with the segments used formerly as coating, which have moreover longer service lives, the invention provides that the coating is produced as a closed ring from a chromium nickel molybdenum steel and is held in press fit on the roller base body. Open grooves are produced in the sleeve surface of the roller base body or on the inner side of the ring as cooling ducts, their open sides being covered by the inner side of the ring or the sleeve surface of the base body in the assembled condition of the rollers.
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