# Aluminum bronze bushing

Aluminum bronze has many uses
With aluminum as the primary alloying element. Aluminum bronze has higher mechanical properties than brass and tin bronze. The aluminum bronze used in conventional use has an aluminum content of 5% ~ 12%, and the plasticity of aluminum bronze containing 5% ~ 7% aluminum is the best, which is suitable for cold production. After the aluminum content is more than 7% ~ 8%, the strength is improved, but the plasticity drops sharply. Aluminum bronze has higher wear resistance and corrosion resistance in the atmosphere, seawater, seawater carbonic acid and most organic acids than brass and tin bronze. Aluminum bronze can be used to make gear, shaft sleeve, worm gear and other high strength anti-wear parts and high corrosion resistance elastic components. High hardness aluminum bronze has higher hardness, anti-friction and excellent corrosion resistance. It can be made by electric welding and gas welding, and can be used as a substitute for high tin bronze. Suitable for wear resistant sliding blocks, guide rail, stretching mold, bearing, shaft sleeve, gear, turbine, etc... Aluminum bronze is used for making corrosion-resistant and wear-resistant components and bearing spring parts under heavy load, also used for casting gear, axle sleeve and marine propeller with high load.

Aluminum bronze is an important alloy material, with excellent mechanical properties and corrosion resistance, and has been widely used in industrial fields. The production process of aluminum bronze is described below.

The production process of aluminum bronze mainly includes the steps of raw material preparation, melting, casting and heat treatment.

First of all, raw material preparation is an important link in the production of aluminum bronze. Under normal circumstances, aluminum, copper and a small amount of other alloying elements (such as manganese, nickel, etc.) are the key raw materials for the preparation of aluminum bronze. These raw materials need to be precisely proportioned and crushed to ensure the composition and properties of the alloy.

Next, smelting is the process of melting raw materials at high temperatures. Electric furnace or argon arc furnace is usually used for melting, and the raw materials are completely melted and fully mixed by controlling the heating temperature and time. In the melting process, it is also possible to increase the melting effect and reduce the impurity content by adding an appropriate amount of flux and slag removal agent.

After smelting is complete, the molten alloy needs to be cast. The common casting methods of aluminum bronze include continuous casting, die casting and sand casting. Among them, continuous casting is an efficient production process, which can produce aluminum bronze materials with complex shapes. And die casting is suitable for the production of high precision and large quantities of aluminum bronze products. Sand casting is often used to produce aluminum bronze parts of larger sizes and unconventional shapes.

Finally, heat treatment is one of the key steps in the production of aluminum bronze. Heat treatment can improve the mechanical properties and corrosion resistance of aluminum bronze by adjusting the structure and properties of the material. Common heat treatment methods include solution treatment and aging treatment. Solution treatment is to heat the aluminum bronze to a certain temperature, so that the alloying elements are dissolved in the matrix, and then the structure is fixed by rapid cooling. Aging treatment is to heat the material to a certain temperature for a period of time after solution treatment, so that the alloying elements are redistributed and a stable organizational structure is formed.

In summary, the production process of aluminum bronze includes steps such as raw material preparation, smelting, casting and heat treatment. Through precise process control and alloy ratio, aluminum bronze materials with excellent mechanical properties and corrosion resistance can be prepared, which are widely used in various industrial fields.