Vacuum melting furnace
is under the condition of vacuum, using the medium frequency induction heating principle, the metal melting complete vacuum smelting equipment.
The vacuum melting furnace in use after a long period of time will appear some fault, this is inevitable.
Lin electromechanical equipment small make up today will when failure occurs, and you talk about what to do.
Vacuum melting furnace common failure what 1, failure phenomenon: vacuum melting furnace running normally, but in normal over-current protection action when burned more is KP thyristor and the fast fuse.
Analysis: when the over-current protection in order to power grid, flat wave reactor of energy released by the rectifier rectifier bridge state to the inverter state, at this time if the alpha & gt;
, it is possible to cause active inverter subversion and burned more than thyristor and the fast fuse, switch jump is accompanied by huge short-circuit current explosion, a large current and electromagnetic force impact of transformer, serious when damage to the device.
2, fault phenomenon: vacuum melting furnace running normally, but working in the area near a high voltage equipment is not stable, dc voltmeter, shaking device with a squeaky voice, this situation is extremely easy to cause subversion burned thyristor inverter bridge.
Analysis: this kind of fault more difficult to eliminate, multiple light was born in spite of a high pressure equipment (
Vacuum melting furnace the connection of copper platoon joint screw loosening caused lighter (
Circuit breaker main joint oxidation lighter (
Compensation capacitor connection screw loosening, flint, compensation capacitance internal resistance capacity to absorb the electric spark (
Water-cooled radiator insulated part too dirty or carbonized to strike (
Vacuum melting furnace induction coil, furnace lining on the furnace shell/furnace bottom lighter, induction coil, furnace lining too close to turn spacing, turn-to-turn lighter or arc.
Fixed the insulation of induction coil, furnace lining sparking discharge column due to the high temperature carbonization (
Thyristor light inside.
Above is the vacuum melting furnace manufacturer analysis of two common failure.
You know why?
If you have not understand, also can call consultation.
Given the important role played by in ensuring proper functioning of continuous casting and rolling, every individual must take an interest towards improving induction heating furnace for forging.
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