FIELD: powder metallurgy and methods of a gas low-temperature chemicothermal treatment.
SUBSTANCE: the invention is dealt with the powder metallurgy and methods of a gas low-temperature chemicothermal treatment, in particular with methods of nitriding of metal materials on the base of iron alloy. The offered method of a chemicothermal treatment of a material on the base of iron alloy provides, that a billet made out of a sintered powder material based on iron alloy is impregnated with copper or its alloy. Then it is kept in a mixture of nitrogen- and oxygen-containing gases, subjected at heating to action of a catalyst ensuring increase of speed of reactions of hydrogen oxidation and dissociation of the gases molecules with formation of the atomic oxygen and nitrogen. There is a description of the material and a component of a block of the immersion centrifugal pump produced by this method. Technical result is an increase of mechanical strength and rust resistance.
EFFECT: the invention allows to increase mechanical strength and rust resistance of the metal materials and components of equipment based on the iron alloy.
43 cl, 2 dwg, 2 ex
