Method of coldworking metal pieces

Details Method of coldworking metal pieces Method of coldworking metal pieces

1976-03-23

1976-12-07

Lanham, C.W.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

252 336, 252 52A, B21J 300

Patent

active

039954650

ABSTRACT:
Improved method of coldworking a metal workpiece involves using a low smoking lubricating composition containing certain amounts of water, potassium nitrite, potassium soap of a sulfurized fatty acid, glycerine, defoaming agent and a block copolymer of ethylene oxide grafted on a polypropylene oxide which copolymer has both a molecular weight range and contains an amount of ethylene oxide content sufficient to cause the composition to remain homogeneous between ambient temperature and the composition's boiling temperature.

REFERENCES:
patent: 2237096 (1941-04-01), Dearborn
patent: 2981686 (1961-04-01), Reamer
patent: 3227652 (1966-01-01), Ackerman
patent: 3278430 (1966-10-01), Williams
patent: 3526596 (1970-09-01), Kress et al.
Bastian, "Metalworking Lubricants" (1951), p. 19.

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