To make a performance indoor treadmill, which material is better, iron or aluminum alloy? For example, the cost of cast iron engines is relatively low. Therefore, for engineering vehicles, diesel engines, and other engines that require greater working pressure and torque, cast iron is generally used. Advantages of aluminum alloy: aluminum alloy has low density, but relatively high strength, is close to or exceeds high-quality steel, has good plasticity, can be processed into various profiles, has excellent electrical conductivity, thermal conductivity, and corrosion resistance, and is widely used in industry. Second only to steel. Disadvantages of aluminum alloy: in the production process of aluminum alloy, casting defects such as shrinkage cavities, blisters, pores, and slag inclusion are prone to appear. Advantages of cast iron: The tensile strength, plasticity, and toughness of cast iron are lower than that of carbon steel. But it also has good wear resistance, high vibration damping, low notch sensitivity, and excellent cutting performance. In addition, cast iron has a high carbon content and its composition is close to eutectic composition. Therefore, the melting point of cast iron is low, about 1200°C, and the molten iron has good fluidity. Therefore, it is usually used as castings by […]