Lubricant film coated steel sheet with excellent phosphatability

Details Lubricant film coated steel sheet with excellent phosphatability Lubricant film coated steel sheet with excellent phosphatability

1996-11-08

1998-12-29

Loney, Donald

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428145, 428149, 428172, 428219, 428469, 428471, 428640, 428659, 428702, 4273762, 4274192, B32B 300, B32B 900, B05D 302

Patent

active

058538500

ABSTRACT:
A lubricant film coated steel sheet having excellent phosphatability, in accordance with the present invention, is a lubricant film coated steel sheet produced by forming a coating containing silicic acid or silicate on a steel sheet or a plated steel sheet, wherein the surface roughness of the steel sheet or the plated steel sheet is 0.5 to 1.5 .mu.m as the centerline-average roughness RA and the PPI (cut-off value of 1.25 .mu.m) thereof is 75 to 300; and the content of silicic acid or silicate in the coating is 1 to 200 mg/m.sup.2 as corrected into dried SiO.sub.2 weight or the coating ratio of the coating is 1 to 60%.

REFERENCES:
patent: 5093180 (1992-03-01), Morgan

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