Supply of ultra-high temperature vacuum sintering furnace

Ultra-high temperature vacuum sintering furnace, 6mm thick steel plate welded vertical water-cooled furnace shell structure, the use of tungsten rods heating, heating rods arranged in the side of the furnace, the furnace from 8 to 9 layers of metal heat shield, clean the furnace, degassing fast , Easy to achieve high vacuum, vertical structure, the liner is not easily deformed, all-metal heat shield (2 to 3 layers of tungsten + 4 to 5 layers of molybdenum +2 to 3 layers of high temperature stainless steel), easy to achieve rapid cooling; , With manual opening and pressing device, fan, heat exchanger, material table in the lower part;
By the heat-resistant fan, copper tube heat exchanger, diversion system composed of fast cooling system, so that the cooling rate after sintering can be reasonably accelerated, increased efficiency, process flexibility;
The main pump is a diffusion pump, the booster pump is a Roots pump, the foreclass pump is a rotary vane pump, which is composed of a three-stage vacuum and is equipped with a high-vacuum valve, a pipe and a vacuum gauge to form a high-vacuum unit;
Bypass extraction system with mechanical filtration and liquid filtration to prevent the exhaust gas from sintering from polluting the vacuum unit;
The main circuit of the control system is controlled by the transformer step-down + thyristor voltage regulator module, the temperature fluctuation is small; the temperature program of the temperature control program, PID regulation, expert self-tuning, advanced and reliable temperature regulation, temperature, vacuum, cooling water fault alarm

First, the purpose

Sintering furnace is mainly used for sintering diamond saw blade can also be used for copper, annealing and other heat treatment.
Ultra-high temperature inorganic materials, ceramic materials, functional materials, high melting point oxides, rapid annealing of high temperature metal materials, special ultra-high temperature sintering experiment and research.

Second, the working principle

When AC power is input to the sensor, an alternating electromagnetic field is formed in the sensor. When alternating magnetic field flux through a special composite ceramic material, due to electromagnetic induction in the composite ceramic material to produce a closed induced current. This current is called the eddy current, the eddy current strength is proportional to the size of the induced potential, and the eddy current loop is inversely proportional to the reactance. Due to the low reactance of the composite ceramic material, the eddy current can reach a very high value, so a great amount of heat is generated inside the composite ceramic material, and the temperature increases accordingly.

Application areas

Sintering furnace is mainly used in the steel industry, metallurgical industry
Vacuum induction high temperature sintering furnace, is a high temperature, the ceramic green solid particles are mutually linked, grain growth, voids (pores) and grain boundaries are gradually reduced, through the material transfer, the total volume contraction, The density increases, and finally becomes a compact polycrystalline sintered body having a certain microstructure.