Corrosion resistant article and method of production thereof

Details Corrosion resistant article and method of production thereof Corrosion resistant article and method of production thereof

2007-01-09

2007-01-09

Lavilla, Michael E. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S659000, C428S681000, C428S632000, C428S332000, C428S446000, C428S450000, C411S378000, C411S427000

Reexamination Certificate

active

11140710

ABSTRACT:
The disclosure relates to a corrosion resistant article comprising a metal body and a protective coating applied on at least one surface of said metal body, said protective coating comprising: (a) a zinc layer comprising metallic zinc; (b) a silicate layer comprising at least one silicate; and (c) a lubricant layer comprising at least one lubricant such as, for example, polyethylene wax. In particular, the disclosure relates to a corrosion resistant bolt and/or nut having a protective coating for use in motor vehicles. The protective coating is substantially free of chromates and phosphates and, hence, environmentally acceptable. The article has an excellent coefficient of friction, temperature resistance and anti-corrosion properties.

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