POWDER MASS FOR DIE-CASTING AND A HARDWARE PRODUCT FOR A SURFACE OR AN UNDERGROUND CONSTRUCTION Russian patent published in 2005 - IPC

FIELD: powder metallurgy; die-casting.

SUBSTANCE: the invention is pertaining to the field of powder metallurgy, in particular, to a powder mass for die-casting and may be used for production of hardware products for construction. The powder mass for die-casting contains a metallic powder and a thermoplastic binding agent. In the capacity of the metallic powder it contains an austenitic steel with the low contents of nickel or a preproduct of the steel, free of nitrogen or with the low contents of nitrogen, or a mixture of components of the steel or its preproduct. The steel contains (in mass %): carbon - 0.11-0.7; silicon - no more than 2; manganese - no more than 17; chrome - 21-26; nickel - 0-2; molybdenum - no more than 1.5; tungsten - no more than 2; copper - no more than 4, in particular, - no more than 2.5; nitrogen - 0.7-1.7; iron and the imminent impurities - the rest. The technical result is increased corrosion resistance and strength.

EFFECT: the invention ensures increased corrosion resistance and strength of produced hardware products for construction.

3 cl, 1 dwg, 3 ex