Titanium alloy powder nitriding device

Abstract

The invention discloses a titanium alloy powder nitridation device. The device comprises a gas supply device, an intelligent heating and temperature controlling device, a powder circulating device and a driving interface device, wherein the intelligent heating and temperature controlling device comprises an electric heating wire, a heating tube cavity, an intelligent power control panel and a spark generator; a gas inlet of the heating tube cavity is connected with the gas supply device; the electric heating wire is wound on the heating tube cavity or arranged in the heating tube cavity; the powder circulating device comprises a main circulating tube, a spark discharging nozzle, a powder combustion bin with a feeding hole, a powder separating interface and a powder re-feeding interface; the spark discharging nozzle is arranged in the powder combustion bin; the spark generator is connected with the spark discharging nozzle; the inlet end of the main circulating tube is connected with the gas outlet of the heating tube cavity and the outlet of the powder re-feeding interface respectively; the outlet end of the main circulating tube is connected with the spark discharging nozzle of the powder combustion bin; a discharging hole of the powder combustion bin is connected with the inlet of the powder separating interface; the powder separating interface is communicated with a nitridation product outlet and the powder re-feeding interface respectively.

Description

technical field [0001] The invention relates to a titanium alloy powder nitriding device, which belongs to the technical field of material processing. Background technique [0002] With the rapid development of modern industry, the demand for high-quality ceramic powders such as high-quality spherical TiN powders continues to increase, and at the same time, preparation technologies with lower energy consumption are also required. Most of the existing titanium alloy powder nitriding treatment technologies are prepared based on self-propagating combustion synthesis and its improved methods (such as adding diluents, adjusting the self-propagating combustion atmosphere, etc.). However, since the nitriding synthesis process of titanium powder is a strong exothermic reaction, the adiabatic reaction temperature can even exceed the reaction product (usually TiN x ) melting point, leading to the nitriding of traditional titanium alloy powder often causes a series of problems, such a...

AI Technical Summary

Problems solved by technology

However, since the nitriding synthesis process of titanium powder is a strong exothermic reaction, the adiabatic reaction temperature can even exceed the reaction product (usually TiN x ) melting point, leading to the nitriding of traditional titanium alloy powder often causes a series of problems, such as: the reaction product sticks, melts and even directly forms too large irregular particles, which is not conducive to high-quality spherical Ti-N ceramic powder It is difficult to meet the needs of production practice in some occasions involving high-precision and special processing fields that require high-quality and large-sized spherical titanium nitride powder

Images