500KG vacuum induction melting casting furnace

Technical scheme of vacuum induction melting furnace

I. Overview:

The vacuum induction melting furnace uses the principle of intermediate frequency induction heating to melt and vacuum cast metal in a vacuum state or under the protection of inert gas.

   This vacuum induction melting furnace is of intermittent structure with a rated capacity of 500 kg. Under vacuum (or inert atmosphere) conditions, different metals such as super alloys, nickel-based alloys, cobalt-based alloys, stainless steel, steel, iron, copper, aluminum, magnesium, lithium, and titanium alloys can be smelted.

  In the smelting process, without affecting the vacuum of the smelting vacuum chamber, temperature measurement, supplementary feeding, alloy feeding and sampling can be realized. Auxiliary functions such as mold heating.

Vacuum induction melting furnace, vacuum melting, vacuum casting.

  Vacuum induction melting furnace is complete, mainly composed of melting casting chamber, intermediate frequency power supply, induction melting furnace, tilting furnace casting system, main feeding system, vacuum isolation valve, metal temperature measurement, vacuum system, hydraulic system, electric control system, cooling system , Pneumatic system, working platform, etc.

2. Technical parameters:

1. Technical parameters of smelting furnace:

Rated capacity: 500 kg

Metal specific gravity: 7.8g/cm3

Melting environment: vacuum or inert gas state.

Furnace lining material: suitable for alumina crucible, magnesia, graphite crucible, metal crucible

Maximum working temperature: 1750℃. (Working temperature depends on the crucible material)

Ultimate vacuum: 5.0X10-3Pa   0.0005mbar     (empty furnace, cold state)

Pressure rise rate: ≤3Pa/h

Power supply type: thyristor intermediate frequency power supply

Power supply: KGPS-500KW-1K

Frequency: 1000Hz

Three temperature measurement methods:

1) Tungsten rhenium thermocouple temperature measurement range 20-1600℃, insert into molten metal for temperature measurement.

 2) Infrared temperature measurement. Temperature measurement range 700-2000℃ Online temperature measurement.

  3) Thermocouple is installed on the wall of graphite crucible or metal crucible to measure temperature.

Tilting method: hydraulic cylinder pushes to tilt.

Tilting angle: -10̊-100 ̊̊

Number of ingot molds: 1-4

 Maximum height of ingot mold: ≤1600 mm (determined according to user requirements)

2. Power requirements:

Total power: 700KW

Power supply voltage: 380V±5%, 50-60Hz

Control voltage: 220V

3. Cooling water parameters

Cooling water circulation rate 75m3/h

   The highest water inlet temperature is 5℃-35℃;

   Outlet water temperature <55℃.

   Water inlet pressure 0.25-0.3MPa