method of obtaining u0442u0435u0440u043cu043eu0441u0442u043eu0439u043au043eu0433u043e u0441u0432u0435u0440u0445u0442u0432u0435u0440u0434u043eu0433u043e atmosphere material based on modified powders of diamond and cubic boron u043du0438u0442u0440u0438u0434u0430

摘要

the invention belongs to the field of u0441u0432u0435u0440u0445u0442u0432u0435u0440u0434u044bu0445 composite diamond material and is intended for the manufacture of the ruling, u0444u043eu0440u043cu043eu043eu0431u0440u0430u0437u0443u044eu0449u0435u0433u043e and u043bu0435u0437u0432u0438 u0439u043du043eu0433u043e cutting tool.method includes annealing powders of diamond and cubic boron u043du0438u0442u0440u0438u0434u0430 in protective atmosphere in pairs u043au0440u0435u043cu043du0438u0439u0441u043eu0434u0435u0440u0436u0430u0449u0438u0445 compounds and further sintering obtained supreme you're in the conditions of high pressure and temperature, and the invention u043eu0442u0436u0438u0433u0430u044eu0442 diamond powder at a temperature of 850 1000u00b0u0441 for 1 to 4 hours, the amount of silicon pic le annealing at u0437u0435u0440u043du0430u0445 powder diamond is within 8 to 30 mas.percent of the mass of the powder of diamond, cubic boron u043eu0442u0436u0438u0433u0430u044eu0442 u043du0438u0442u0440u0438u0434u0430 powder at a temperature of 850 1000u00b0u0441 within 1 to 2 h, the amount of silicon after annealing at u0437u0435u0440u043du0430u0445 u043fu043eu0440u043e u043du0438u0442u0440u0438u0434u0430 covered cubic boron is within 8 - 15 mas.per cent of the initial mass of cubic boron u043du0438u0442u0440u0438u0434u0430 size grains, powders of diamond and cubic boron u043du0438u0442u0440u0438u0434u0430 is within a range of 1 to 40 microns, the mass ratio of u0440u043eu0448u043au043eu0432 diamond and cubic boron u043du0438u0442u0440u0438u0434u0430 in u0448u0438u0445u0442u0435 falls within the range of 1: 1 to 5: 1, and the sintering is at high pressures and temperatures are in the range of yes u0432u043bu0435u043du0438u0439 5.0 - 6.0 gpa at 1650 - 2000u00b0u0441 within 30 - 60.to improve the fusibility of the material in the u0448u0438u0445u0442u0443 from powders of diamond and cubic boron u043du0438u0442u0440u0438u0434u0430 u043au0440u0435u043cu043du0438u0435u0432u044bu043c coated with amorphous boron powder in u043au043eu043bu0438u0447u0435u0441 lead additives u0442u0432u0435 0.5 - 1.5 mas.% and / or aluminium powder of 1 to 5 mas.%.the application of the present invention can reduce the cost of the manufacturing process u0441u0432u0435u0440u0445u0442u0432u0435u0440u0434u043eu0433u043e material, improve the physical mechanical and cutting u0441u0432u043eu0439u0441 twa tool based on it.