Our company mainly adopts the German original IPSEN controlled atmosphere multi-purpose furnace for carburizing, carbonitriding, isothermal (grading) quenching and other treatment processes. An oxygen probe is used to continuously measure the oxygen potential of the furnace atmosphere, and the carbon concentration of the gas in the furnace is quickly calculated by the carbon controller. Instantly regulate multiple variables such as temperature, carbon potential, time, and depth of the layer. The quenching and cooling after carburizing is automatically completed in the furnace, and the equipment can control the factors affecting the cooling quality (including stirring force, stirring direction, stirring time, cooling time, etc.). The processing technology can be reasonably designed according to customer requirements to ensure product quality.

(1) Process performance and application

● After carburizing and carbonitriding treatment, a thin layer of carbon-nitrogen martensite with high hardness, high strength and high abrasion resistance is obtained on the surface of the workpiece, and the core still has high toughness and plasticity, so it is suitable for low, medium and high. Carbon steel and low alloy steel. The distribution of carbon concentration in the layer is easy to control, and the necessary adjustment can be made according to different needs. The infiltrated layer is excellent, and the depth of the layer can be precisely controlled in a wider range (0.1 to 8.0 mm). Widely used in wear parts with a certain impact load and high anti-wear, high toughness hardware.

● Isothermal (grading) quenching can choose different isothermal temperatures to obtain martensite, bainite single-phase or multi-phase structure, so that the toughness of the workpiece can be reasonably matched to improve the fatigue strength, wear resistance and elastic limit value. And the deformation of the workpiece after heat treatment can be reduced.

(2) device photo