Aqueous acidic lubricant coating composition and method

Details Aqueous acidic lubricant coating composition and method Aqueous acidic lubricant coating composition and method

1980-07-24

1981-09-15

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 615Z, 252 495, 252 498, 252 499, C23F 710

Patent

active

042895472

ABSTRACT:
A composition and a method for applying a lubricant coating to clean metal surfaces prior to subjecting them to metal forming operations. The composition comprises a concentrate which is adapted to be diluted with water, if desired, to produce an aqueous acidic operating bath containing a controlled effective amount of phosphate ions to form a phosphate coating on the clean metal surface in combination with an emulsified organic lubricant agent, an emulsifying agent and an iron chelating agent. The coating composition may further optionally contain a controlled amount of a corrosion inhibiting agent and heavy metal cations for activating the coating bath. The coating composition is applied to a clean metal surface such as by flooding, immersion, spraying, or the like, at temperatures from ambient up to about 200.degree. F. for a period of time sufficient to effect a desired coating magnitude whereafter the parts are dried, preferably at elevated temperatures before forming.

REFERENCES:
patent: 2840498 (1958-06-01), Logue et al.
patent: 2850418 (1958-09-01), Otto et al.
patent: 3525651 (1970-08-01), Smith

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