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LDMC-75A ion nitriding furnace for DIN 42CrMo4 steel heating
LDMC-75 Pit type Vacuum nitriding furnace Main parameters :NameDescriptionLDMC-75AIon Plasma Nitriding FurnaceVacuum furnace bodyΦ900×1200mmOutput voltage0-900V Continuous adjustableMaximum output average current75APeak pulse current150APulse frequency1000HzWorking temperature<=650ºCThe rated load800kgsLimited vacuum≤6.67PaRising rate≤0.13Pa/minPumping to 20Pa cost time≤30minArcing time≤15μsControl temperature precision±1ºCControl pressure precision±1PaThe technological processAutomatic control
| Name | Specification introduce | Qty |
| Vacuum furnace body: | Chamber size:φ900×1200mmH | 1 |
| Vacuum pump | 2X-15 | 1 |
| Electric vacuum butterfly valve | China GID-50 | 1 |
| Vacuum solenoid valve | China DDC-JQ50 | 1 |
| Mass flow controller | China D07 | 3 |
| 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 |
| Model | LDMC-75A ion nitriding furnace for DIN 42CrMo4 steel heating |
| Working chamber | Ø900*1200mm |
| Max Working temperature | 650ºC |
| Common working temp | 500±50ºC |
| Ultimate vacuum | ≤6.7Pa/30Min |
| Pressure rising rate | ≤0.13Pa/min |
| Model | LDMC-75A ion nitriding furnace for DIN 42CrMo4 steel heating |
| Maximum average output current | 75A |
| Maximum peak output current | 150A |
| Max nitride area | 60000cm2 |
| Max loading weight | 800kgs |
| Output supply | 75KW |
| Output status | Rectangular web |
| Frequency | 1000HZ |
| The arc velocity | ≤20 Microsecond |
| Control method | Fixed frequency width |
| Occupy space rate | 0-85% continue adjustable |
Nitriding furnace Images:
1. what is the different about Nitriding furnace and Vaccum furnace?
Ion nitriding, also known as glow nitriding, is carried out using the principle of glow discharge. Ion nitriding is to use the metal workpiece as the cathode furnace body as the anode in a low-vacuum furnace filled with nitrogen gas. After being energized,the nitrogen and hydrogen atoms in the medium are ionized under the high-voltage DC electric field, forming a plasma region between the cathodes. to adsorption and diffusion, nitrogen penetrates into the surface of the workpiece.
Under the action of a strong electric field in the plasma area, the positive ions of nitrogen and hydrogen bombard the surface of the workpiece at a high speed. The high kinetic energy of ions is converted into thermal energy, heating the surface of the workpiece to the required temperature. Due to the bombardment of ions, atomic sputtering is generated on the surface of the workpiece, which is purified. At the same time, due to adsorption and diffusion, nitrogen penetrates into the surface of the workpiece.
The gas nitridingsystem workpiece is placed in the furnace, and the NH3 gas is directly injected into the nitride furnace at 500 to 550ºC, which is maintained for 20 to 100 hours, so that NH3 gas is decomposed into atomic (N) gas and (H) gas for nitriding. The main purpose is to produce a wear-resistant and corrosion-resistant compound layer on the surface of the steel.
2. Precautions for ion nitriding
The cleaning workpiece is nitridized with gas, but it is best to dry or cool and then put it into the furnace to save arcing time.
The workpiece should be evenly loaded into the furnace. The interval between the workpiece and the cathode and anode must be more than 30mm, so as to avoid the excessive current density between the two poles and the local temperature of the workpiece being too high. Do a good job of anti-seepage. Any hole less than 2mm must be shielded, and the sample must be placed in a position that can be consistent with the temperature of the workpiece.
3.what kind of work piece can be use with Nitriding furnace ?
4Cr5MoSiV1(H13),3Cr3Mo3W2V,5Cr4W5Mo2V ,20 steel,40 steel,20Cr,20CrMnTi,40Cr/38CrMoAl,42CrMo, 50CrV,,1Cr18Ni9Ti,40 steel,alloy structural steel, bearing steel, spring steel, die steel, tool steel and other materials.
4. what's the max temperature nitriding furnace working for ?
Normal steel working temperature around 520-550 degree,if the Titanium alloy heating temperature must be around 750-800 degrees,this is customized type,you can inquire our sales technical manage.
5. what the work piece layer after nitriding heat treatment?
It according to the work piece features
Samy Heat Treatment Equipment
specializes in the production of ion nitriding, ion nitrocarburizing, and gas
nitriding furnaces, as well as the development and application of multiple co-infiltration processes and special process equipment. our company has been committed to the development and research of ion nitriding equipment and technology. we are independently developed the first generation of ion nitriding equipment in China. After more than 30 years of continuous progress, it has developed into the current LDMC
series computer-controlled ion ammonia permeation device.
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