Marking powder for and method of marking a metallic article
First Claim
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1. A marking powder for marking a metallic article, comprising a binding agent, a pigment and zinc powder in an amount in the range of 20 to 70% by weight of the marking powder.
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Abstract
A marking powder is disclosed for marking metallic bodies, in particular hot metallic bodies, which may be steel or other ferrous metal. Zinc is present in the marking powder in an amount 20 to 70% by weight, and it found that this results in improved legibility, which lasts for longer.
The powder may be prepared by adding zinc powder to a known aluminum-based marking powder in an appropriate ratio.
Coarse zinc powder was found to be better.
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11 Claims
- 1. A marking powder for marking a metallic article, comprising a binding agent, a pigment and zinc powder in an amount in the range of 20 to 70% by weight of the marking powder.
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9. A marking powder for marking a hot metallic article, containing:
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8 parts by weight aluminium powder; 5 parts by weight bentonite; 2 parts by weight TiO2 ; and 6 to 24 parts by weight zinc powder. - View Dependent Claims (10, 11)
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Specification