How to improve the wear resistance and corrosion resistance of Conical Screw Barrel?

In industrial production, it is very important to improve the wear resistance and corrosion resistance of Conical Screw Barrel.
Material selection: Select high-quality alloy steel, such as the commonly used 45, 40Cr and 38CrMoAlA alloy steels. The yield strength of these materials can reach about 900MPa. After nitriding treatment, the hardness is above 950HV, which has good wear resistance and corrosion resistance. You can also consider using surface hardened materials, such as tungsten carbide alloy materials, which have extremely high hardness and wear resistance and can effectively resist the wear and corrosion of materials.
Surface treatment process: Electroplating is a common method. For example, chrome plating is performed on screws with severe wear. Chromium is a wear-resistant and corrosion-resistant metal that can improve the surface hardness and corrosion resistance, but it should be noted that the hard chrome layer may be easy to fall off. Thermal spraying technology is also a good choice. For example, HVOF (high-speed oxygen fuel spraying) is used to spray a layer of wear-resistant alloy, such as tungsten carbide alloy, on the surface of the screw to enhance its wear resistance. Chemical plating is also a feasible way to improve its corrosion resistance and wear resistance by forming a uniform alloy coating on the surface of the conical screw barrel.
Optimize processing technology: During the manufacturing process, accurately control the processing accuracy to ensure that the matching clearance between the screw and the barrel is reasonable, and reduce the wear and corrosion caused by friction and material leakage. Grind and polish the inner surface of the barrel to reduce the surface roughness, so that the material flows more smoothly in the barrel and reduces the adhesion and wear of the material on the inner wall of the barrel. Using advanced heat treatment processes, such as quenching and tempering, can improve the organizational structure of the material, improve its strength, hardness and toughness, thereby enhancing wear resistance and corrosion resistance.
Use and maintenance measures: Reasonably set process parameters to avoid excessive extrusion temperature and pressure, and prevent high temperature and high pressure from accelerating the wear and corrosion of equipment. Clean and lubricate the conical screw barrel regularly to remove residual materials and deposits, and use suitable lubricants to reduce friction.