A METHOD TO PRODUCE A TAPE OUT OF A METAL POWDER Russian patent published in 2004 - IPC

FIELD: powder metallurgy. SUBSTANCE: the invention presents a method of production of a tape out of a metal powder and may be used in the powder metallurgy, in particular in production of a powdered tape. The invention offers a method of production of a tape out of a metal powder by rolling. At that the pressure in the hydropressing roller system, providing the working rolling pressure is created by a compressed gas, the volume of which is determined by the following formula: V_c.g = 2πR²h_o(1±η), where πR² - the area of the pressing roller; h₀ - the height of the dispersible mass in the pressing roller section area; η = (γ_max-γ_min)/γ_m - a relative change of the bulk density of fed to the center of the powder deformation; γ_max -the maximal density of the powder; γ_min - the minimum density of the powder; γ_m - average density of the powder. EFFECT: the invention allows to produce a powder tape of the given density along the full length of the tape. 1 tbl