A Brief Overview of the Features Applications of Nitriding Furnaces
Chemical Heat Treatment: This refers to a heat treatment process in which metal alloy workpieces are placed in an active medium at a specific temperature held there, allowing one more elements to diffuse into their surface layers to alter their chemical composition, microstructure, properties. Common chemical heat treatment processes include carburizing, nitriding, carbonitriding, aluminizing, boronizing. The primary objective of chemical heat treatment is to enhance the surface hardness, wear resistance, corrosion resistance, fatigue strength, oxidation resistance of steel components.
Pit-type Gas Nitriding Furnaces are primarily designed for the gas nitriding heat treatment of various steel mechanical parts, automotive crankshafts, motorcycle brake pads, molds, similar components.
The pit-type gas nitriding furnace features an energy-efficient furnace lining, a double-water-cooled furnace lid, vacuum rubber seals, a three-zone temperature control system (upper, middle, lower). These features significantly improve the furnace's thermal insulation, temperature uniformity, sealing integrity, nitriding rate. The outer shell of this series of pit-type gas nitriding furnaces is fabricated by welding steel plates structural steel sections. The furnace lining is constructed using ultra-lightweight, high-strength "Type 0.6" energy-saving refractory bricks, with a layer of aluminum silicate fiber insulation wool sandwiched between the lining the outer shell. The heating elements consist of high-temperature resistance ribbons wound into a V-shape mounted onto the refractory bricks of the furnace walls. The furnace is equipped with a stainless steel retort. The furnace lid features a dual-head stainless steel drip feeder used to introduce the nitriding medium, thereby ensuring a uniform temperature atmospheric distribution within the furnace chamber. The lid is also fitted with a sampling tube, an exhaust pipe, a decomposition rate analyzer. The interface between the retort the lid utilizes a water-cooled vacuum rubber seal is secured by clamping bolts. Waste gases generated within the furnace are expelled to the outside through the exhaust pipe.