VIM Furnaces by Therelek
Vacuum Induction Melting furnace (VIM) is used in secondary refining or in metallurgy, to refine alloys in a fluid state, by bringing some change in temperature and their chemical compositions. This in a way, improves the quality of the raw materials used in many complex alloys of the complex devices of aerospace engineering.
The improvising of the materials eventually makes them homogeneous and thereby clean them by churning out all the dissolved and bonded impurities. The vacuum levels are set to be in the range of 10-1 to 10-4 mbar during this type of refining phase and requires precise control for melting.
Compared to other kinds, the melting process is quite easier in VIM, attributing the independent control of time, pressure, temperature, and transport through melt stirring. In the process of vacuum induction melting, it is important to have flexibility in controlling the alloy composition by sampling and mixing up of the required alloys.
Some important usage of vacuum induction melting are:
# Refining of finest impurities from metals and alloys
# Electrodes for remelting
# Investment casting
# Making casts of aircraft engine components
Features & Specifications
|Furnace Type||Cold Wall (front loading, top loading)|
|Temperature Range||800°C to 2200°C (furnace)|
|Standard Applications||Vacuum Induction Melting|
|Vacuum||5 x 10-6 m.bar|
|Vacuum System||Rough Vacuum by Rotary-Roots combination | High Vacuum by Diffusion pump / Turbo Molecular pump|
|Heating Elements||Induction Coil|
|Instrumentation & Automation||Induction Coil Controller, Pyrometer, PLC, SCADA, HMI|
More about Vacuum Induction Melting Furnace VIM
- Used in aircraft engine components for casting
- Used in making superalloys
- High purity metals and alloys are refined
- Re-melting of electrodes
- Investment casting
- Strip casting
- Small batch sizes
- A quick change in the program of steels and alloys
- Easy operation
- Reduction in Oxidation losses
- Compositional tolerance achieved
- Precise Temperature control
- Low environmental pollution
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