How to make a new type of pressurized gas nitriding furnace?

In the prior art, in order to improve the hardness, abrasion resistance and corrosion resistance of the surface layer of metal workpieces, a nitrogen chemical heat treatment process is used to infiltrate nitrogen atoms into the surface layer of steel. There are many nitriding methods. Gas nitriding and ion nitriding are two commonly used nitriding methods. At present, the gas nitriding method is widely used in production, the process performance is stable, and the nitriding effect is good. The specific process is as follows: Put the metal workpiece in a sealed heat-resistant steel tank, introduce flowing nitrogen or ammonia gas, heat it and keep it for a long time, and then decompose the nitrogen or ammonia gas to generate active nitrogen atoms, and continuously adsorb it on the metal workpiece The surface diffuses into the metal body of the surface layer of the workpiece, and changes the chemical composition and structure of the surface layer to obtain excellent surface properties.

In order to solve the above problems, the utility model nitriding furnace uses the following technical solutions: a pressurized gas nitriding furnace including a furnace body, the furnace body includes a pressure tank body, a heating element, a heating nitriding chamber located inside the pressure tank body, The cooling system located outside the pressure tank body, the wall of the heating nitriding chamber is a refractory insulation layer, and the heating element is arranged on the refractory insulation layer.

The disclosed pressurized gas nitriding furnace can be shortened with multiple chemical nitriding heat treatment times, which solves the technical problem that the prior art nitriding treatment requires a long time to improve the nitriding treatment efficiency of the heat treatment device.