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GR series crucible well resistance furnace. Rated temperature: 800 ℃, general crucible capacity is 100kg, 150kg, 250kg, etc., and non-standard crucible can also be customized according to the user's needs. The furnace of the equipment has two kinds of brick and full fiber for the user's reference.

 

 

 

The control system adopts solid state relay with PID regulation and over temperature alarm function.

 

 

 

This series of electric furnace structure consists of furnace body, heating element, crucible, furnace cover, tilting mechanism, temperature control system, etc.

 

The shell of the furnace is welded into cylinder shape with steel, and the shaft furnace is built with 0.6g/cm3 ultra light refractory brick inside. The gap between the furnace and the shell is filled with aluminum silicate refractory fiber and diatomite bulk material for heat insulation and insulation, so as to improve the heat insulation performance of the furnace

 

The heating element is spirally wound with Fe Cr Al alloy (0cr25al5) wire, which is placed on the brick laying around the furnace and fixed with the socket brick laying to prevent it from falling out when tilting. The heating element is connected with the power supply through the extraction furnace.

 

The crucible is a steel casting, made of chrome steel (zg40cr9si2), and the service temperature is about 800 ℃. The crucible is placed in the center of the furnace. The molten metal is inclined in the crucible for heat preservation. If we brush zinc oxide and talcum powder coating in the process of using, the result is better.

 

The furnace panel is equipped with two semicircle furnace covers, one end of which is fixed on the furnace panel through a rotating shaft, and the other end has a handle, which can open and close the furnace cover flexibly. The furnace cover is filled with aluminum silicate refractory fiber for heat preservation.

 

The inclining mechanism adopts mechanical inclining and worm reducer to incline.

 

There is a leakage hole at the lower end of the front of the furnace body. When the crucible is cracked due to corrosion and oxidation, the solution in the furnace can flow out of the furnace through this hole, so as to prevent the heating elements and furnace lining from greater damage. The leakage hole is usually blocked with several layers of paper and other inflammables, so as to prevent the cold air outside the furnace from entering the furnace.

 

The temperature control system adopts PID zero crossing trigger thyristor and intelligent meter to control temperature. High temperature control accuracy, up to ± 2 ℃.