FIELD: metallurgy.
SUBSTANCE: composition for marking of metal products produced by powder metallurgy method includes not more than 50% of wt % of luminophor and 50 wt % and more of binding-lubricating agent being fatty acid derivatives or powders of synthetic wax and/or paraffin. Marking of metal products by this composition consists in mixing of alloy metal powder with marking composition, which consists of at least one inorganic agent with property to provide luminescence at irradiation and binding-lubricating agent with subsequent pressing of obtained mixture and its sintering at temperature not exceeding 900°C.
EFFECT: possibility of products marking during their production by powder metallurgy method, simplifying marking technology and providing safety.
15 cl, 1 dwg, 8 ex
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