Metal deforming – With cleaning – descaling – or lubrication of work or product – Lubricating
Patent
1983-03-25
1983-11-22
Husar, Francis S.
Metal deforming
With cleaning, descaling, or lubrication of work or product
Lubricating
72 42, 72 46, 252 18, 252 495, B21B 4502
Patent
active
044161328
ABSTRACT:
The present invention relates to a lubricant for use in the drawing and ironing of black plate steel during the manufacture of enclosed containers such as cans. The lubricant comprises an aqueous solution of an active component, such as a major portion of molybdenum disulfide, together with minor amounts of waxes and other materials. In performing the method of the present invention, a lubricant system is employed. The lubricant system comprises a dual lubricant coating. The first, or outside, coating is applied to that portion of the black plate steel which ultimately becomes the outside surface of the can body. The outside coating is applied, such as by spraying or gravure or offset printing, at a rate of about 25 to about 200 milligrams per square foot of steel surface. This coating is dried, as through the use of a heat source, such as infrared heat or hot air. A second, or inside, coating is applied to that portion of the black plate steel which ultimately becomes the inside surface of the can body. The inside coating may also be applied to the surface of the black plate steel in a manner similar to that used for the application of the outside coating. After the can body is produced, the outside and inside lubricants must be totally removed. Such removal may be achieved by washing the can bodies in an alkaline solution (pH about 7.5 to 11.5) having a temperature of about 140.degree. to about 160.degree. F.
REFERENCES:
patent: 1948194 (1934-02-01), Williams
patent: 2686488 (1954-08-01), Montgomery
patent: 3629112 (1971-12-01), Gower et al.
patent: 3843529 (1974-10-01), Bertrand
patent: 3873458 (1975-03-01), Parkinson
patent: 4292095 (1981-09-01), Schlinsog
patent: 4303537 (1981-12-01), Laepple et al.
E/M Lubricants, Inc.
Husar Francis S.
Jones David B.
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