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Cylinder Plasma Nitriding Machine With PID Control Heat Treatment
Cylinder Plasma Nitriding Machine is mainly used for tempering and stress relieving treatment of metal parts and alloy parts. The furnace is suitable for heat treatment at 650℃.
The composition of ion nitriding furnace bottom
The ion nitriding furnace consists of five parts: furnace body,
power transmission device, vacuum acquisition system, power supply
system, gas supply system and temperature measurement.
1. The furnace body is composed of a furnace cover, a cylinder
body, a furnace chassis and a bottom frame. The furnace cover, the
cylinder body and the furnace chassis are interlayered with cooling
water. The furnace is equipped with stainless steel and alloy
aluminum double-layer heat shields. There are double layers of
tempered glass for observing the situation in the furnace during
the ion nitriding process.
2. There are two sets of cathode power transmission devices on the
furnace cover, a set of thermocouple hanging columns, and a hanging
plate on it. The user should design a hoisting tool according to
the parts to be processed, and hang the workpiece on the hanging
plate through the hoisting tool. .
3. The vacuum obtaining system of the furnace body is generally
composed of two rotary vane vacuum pumps and a pipeline system with
a butterfly valve in series. The function of the butterfly valve is
to adjust the suction volume by closing or rotating at different
angles to maintain the air volume under different conditions. For
the measurement of furnace pressure and vacuum degree, use the
matching vacuum gauge to read the vacuum value.
4. The inlet of the gas supply pipe of the furnace body is set on
the furnace shell cylinder, and there is one rotameter for hydrogen
calibration and nitrogen calibration.
Basic parameters of ion nitriding furnace
project | unit | 25A | 50A | 75A | 100A |
Ultimate vacuum | Pa | 6.67 | |||
Pressure rise rate | Pa/min | 0.0133 | |||
vacuum pump | pc | 2x-4 | 2x-8 | 2x-8 | 2x-8 |
2x-4 | 2x-8 | 2x-8 | 2x-15 | ||
Furnace chamber size | mm | Φ760*800 | Φ1060*950 | Φ920*1200 | Φ1100*1200 |
Maximum heating area | cm² | 1.25*104 | 2.5*104 | 3.5*104 | 5*104 |
loading capacity | Kg | 600 | 800 | 1000 | 1200 |
Maximum operating temperature | ℃ | 650 | 650 | 650 | 650 |
Comparison of workpieces after ion nitridation
The process of the nitriding process in the nitriding furnace is simply to introduce ammonia gas into the vacuum sealed tank of the nitriding furnace, and then heat it to 520 ℃. It is determined that it is generally 3 to 90 hours, so that a nitrogen-containing strengthening layer is formed on the surface of the workpiece, thereby improving the hardness, wear resistance and fatigue strength of the workpiece.