Pусский
EspañolSurface treatment of cylinder head molds is a critical step in ensuring mold performance, durability and manufacturing accuracy. Surface treatment is designed to improve the hardness, wear resistance, corrosion resistance of the mold, and reduce the friction coefficient, thereby extending the service life of the mold.
Hard chrome plating: Hard chromium plating is a common surface treatment method that improves the hardness and wear resistance of the mold by forming a layer of extremely hard chromium plating on the surface of the mold. This is particularly important for cylinder head molds, because the mold needs to have good wear resistance and hardness to maintain the stability of the mold in a high-temperature and high-pressure working environment.
Nitriding treatment: Nitriding is a heat treatment method that penetrates nitrogen gas into the mold surface at high temperature to form a nitrided layer. Nitriding treatment can significantly improve the hardness, wear resistance and corrosion resistance of the mold. For cylinder head molds, the surface after nitriding treatment is stronger and can resist the effects of high temperature, high pressure and corrosion.
Grinding and polishing: Precision grinding and polishing processes can improve the finish and flatness of the mold surface, help reduce the friction coefficient, and improve the surface quality of the mold. For cylinder head molds, this helps ensure the sealing and appearance quality of the cylinder head.
Coating technology: Surface coating can provide additional protection, such as anti-corrosion, anti-oxidation, etc. In cylinder head molds, coatings can improve the surface hardness of the mold and reduce the friction coefficient, thereby reducing wear. Some common coatings include titanium coating, nitride coating, etc.
Ceramic Coating: Ceramic coating is an effective surface treatment for cylinder head molds that require extremely high wear and high temperature resistance. Ceramic coatings can maintain hardness under high temperature conditions and have excellent wear resistance, making them suitable for high-load, high-speed working environments.
Shot peening: Shot peening uses high-speed spraying of particles, such as sand, steel balls, etc., to impact the mold surface to remove oxides, residues, etc., while increasing surface roughness. This helps improve mold adhesion and lubricity.
Chemical treatment: Chemical treatment includes pickling, nickel plating and other methods, which can be used to remove surface oxides, improve surface flatness, and increase the corrosion resistance of the mold.
