LDMC-200 Series Pulse Power Supply Glow Ion Nitriding Furnace
Samy
LDMC-200
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LDMC-200 series pulse ion nitriding equipment
Main technical indicators:
Output voltage | 0-900V continuously adjustable |
Maximum output average current | 200A |
Pulse peak current | 400A |
Pulse frequency | 1000Hz |
Furnace working volume | φ1600×2000mm |
Working temperature | ≦650℃ |
Rated load | 4000KG |
Ultimate vacuum degree | ≤6.67Pa |
Pressure rise rate | ≤0.13Pa/min |
Vacuum to 20Pa time | ≤30min |
Arc extinguishing time | ≤15μs |
Temperature control accuracy | ±1°C |
Pressure control accuracy | ±1Pa |
Process | Automatic control |
Features of pulse ion nitriding equipment:
The pulse ion nitriding process is to pass ammonia gas into the vacuum furnace, that is, start the mechanical pump to pump air after the work-piece is loaded into the vacuum furnace. Continue vacuuming to maintain the vacuum degree in the furnace. After the furnace temperature reaches the required nitriding temperature, keep it warm for a certain period of time, then stop vacuuming, and pass dry ammonia gas into the furnace to raise the furnace pressure to 50-70Pa. Keep it for a certain period of time, then evacuate and keep it for a certain period of time, and then pass in ammonia gas, and repeat this many times until the seepage layer meets the requirements. The furnace temperature was kept constant throughout the nitriding process.
Due to the resistance of the pulse power supply to the arc discharge, the arc light acts on the surface of the part for a very short time, and a high-quality surface can be obtained; because the temperature uniformity is improved by the pulse power supply, the part is not easy to deform. Due to the increase of adjustable parameters, at the same time The quality and depth of the nitriding layer are all improved under the condition of internal or unfavorable for ammonia permeation.
Pulse ion nitriding has short process time (the shallower the nitriding effect is more dramatic), energy saving, gas saving, no pollution (so it is called the first ecological method or "green" hardening method), work-piece deformation Small size, controllable nitride layer structure, and wide application range (almost all types of steel materials can be ion nitriding treatment), etc., are gradually replacing gas nitriding and salt bath nitriding, and are widely used in industrial production practice.
LDMC-200 series pulse ion nitriding equipment configuration table
Name | Specification introduce | Qty |
Vacuum furnace body | Chamber size ：φ1600×2000mmH | 1 |
Vacuum pump | 2X-30 | 2 |
Electric vacuum butterfly valve | China GID-65 | 2 |
Vacuum solenoid valve | China DDC-JQ65 | 2 |
Mass flow controller | China D07 | 2 |
Film type absolute pressure vacuum gauge | China ZJ-1C | 1 |
Pressure control | Japan SR3 | 1 |
Temperature control | Japan SRS13 | 1 |
Rectifier transformer | China (36KVA oil-immersed) | 1 |
PLC(Programmable controller) | Mitsubishi FX series from Japan | 1 |
Industrial PC | 15＂ color touch-able display | 1 |
Cooling tower (tank) | Flow ≥2M3/h | 1 |
Selection and function of ion nitriding furnace
Model | LDMC-200 | LDMC-200AZ |
Chamber size | ¢1600x2000mm | ¢1600x2000mm |
Heating power（kw） | 200 | 200 |
Limited vacuum（Pa） | ≤6.7 | ≤6.7 |
Rising rate（Pa/min） | ≤0.13Pa | ≤0.13Pa |
Max loading（kg） | 4000 | 4000 |
Treated maximum surface area | 20㎡ | 20㎡ |
Normal operating temperature(℃) | 500±50 | 500±50 |
Maximum operating temperature(℃) | ≤650 | ≤650 |
Maximum peak current(A) | 400 | 400 |
Maximum current(S) | 200 | 200 |
Maximum output voltage(V) | 0-900V Continuously adjustable | 0-900V Continuously adjustable |
Frequency(Hz) | 1000 | 1000 |
Control mode | Fixed frequency width adjustment | Fixed frequency width adjustment |
Output waveform | Rectangular square wave | Rectangular square wave |
Arc Speed | ≤15μs | ≤15μs |
Temperature control mode | PID Automatic control | PID Automatic control |
Pressure control mode | Manual control | PID Automatic control |
Pressure sensor type | Absolute pressure transmitte | Absolute pressure transmitte |
Flow control mode | Manual control | PID Automatic control |
Ammonia flow-meter type | Glass rotor flow-meter | Mass flow-meter |
Carbon flow-meter type | Glass rotor flow-meter | Mass flow-meter |
Parameter input mode | Key input | Touch screen input |
Parameter recording mode | Recorder (temperature) | Computer automatic input |
Manual operation mode | Yes | Yes |
Automatic operation mode | No | Yes |
Programmable controller(PLC) | No | Yes |
Industrial control computer | No | Yes |
Furnace cooling mode | Multi-channel water inlet manual adjustment | Multi-channel water inlet manual adjustment |
Control cabinet size | 1400*700*2000mm | |
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