Introduction to commonly used metal materials and surface treatments for mechanism components
Metal materials
45 steel: has good comprehensive mechanical properties, moderate strength and toughness, and is widely used in various types of mechanism installation components, such as some positioning pins, shaft components, etc.
Stainless steel: Common models include SUS304 and other models, which have excellent corrosion resistance and are suitable for environments with corrosion protection requirements, such as components in food machinery and medical equipment.
Aluminum alloy: such as AL6061, which is light in weight, high in strength and good in heat dissipation performance. It is often used in equipment with weight requirements, such as guide shaft supports, some light couplings, etc.
Cast iron: has high strength and good rigidity, can withstand large loads, and is suitable for installation components of heavy-duty equipment, such as base connectors of large machinery, etc.
Alloy tool steel: has high hardness and high wear resistance, and is often used in components with high requirements for precision and wear resistance, such as high-precision positioning pins, etc.
Surface treatment
Blackening treatment: A layer of ferroferric oxide protective film is formed on the metal surface, which can improve the rust resistance of the component. It is often used in positioning pins, couplings, etc.
Galvanizing/nickel plating: By plating a zinc layer or a nickel layer on the metal surface, the corrosion resistance and aesthetics of the component are enhanced. For example, guide shaft supports, couplings, etc. often use this treatment.
Anodizing: For components made of aluminum alloy, anodizing can improve the surface hardness, anti-aging performance and insulation, such as aluminum alloy guide shaft supports.
