Processes of phosphating surfaces of iron and of steel with mang

Details Processes of phosphating surfaces of iron and of steel with mang Processes of phosphating surfaces of iron and of steel with mang

1980-07-03

1982-01-19

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

252135, 252156, 252173, 25217425, C23F 710

Patent

active

043115365

ABSTRACT:
The invention relates to a process of phosphating surfaces of iron and of steel with manganese.
The abovesaid process is characterized by the fact on the one hand, that it does not include a refining treatment preceding the proper phosphating, and on the other hand, that the alkali degreasing bath has a pH of 9 to 12 and includes in suspension bivalent manganese in orthophosphate form.

REFERENCES:
patent: 2516008 (1950-07-01), Lum
patent: 3510365 (1970-05-01), Rausch et al.

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