Process of zinc coating fasteners

Chemistry: electrical and wave energy – Processes and products

Patent

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Details

204 38B, C25D 534, C25D 702

Patent

active

040922243

ABSTRACT:
A process of zinc coating fasteners such as screws and nuts, wherein the fastener is first provided with a zinc coat by hot coating, which coat is then equalized chemically, whereafter there is applied a superficial zinc coat by electrocoating. If desired, the fastener may then be chromated.

REFERENCES:
patent: 1984335 (1934-12-01), Crapo

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