Introduction to Cast Aluminum Outdoor Furniture

Outdoor cast aluminum furniture refers to outdoor cast aluminum garden style leisure furniture. As for the specific name, there has been no consensus in the industry, and its main raw material is aluminum alloy.

Aluminum, with the chemical formula AL, is one of the commonly used non-ferrous metals with a density of 2.7. Compared to iron with a density of 7.9 and copper with a density of 8.93, aluminum is a lightweight non-ferrous metal. Pure aluminum is easy to process and shape. In order to increase the strength of aluminum, non-ferrous metals such as silicon, manganese, zinc, and magnesium are added to aluminum, which greatly improves the performance, strength, and toughness of the aluminum alloy. Combined with its easy cutting and forming characteristics. It is widely used in industrial and civilian fields, such as aviation, aerospace, automotive, machinery manufacturing, shipbuilding, and chemical industry.

Cast aluminum leisure furniture is divided into two categories: cast aluminum and die cast aluminum. Casting aluminum furniture is the process of melting aluminum ingots in a furnace, maintaining the temperature of the aluminum solution at 680-700 degrees Celsius (the melting point of aluminum is 660 degrees Celsius), and introducing it into a pre-set mold cavity. After the aluminum solution naturally cools and solidifies, the mold is opened, and the cast blank is taken out and quenched. It is rapidly cooled in cold water to change the internal structure of the aluminum alloy, improve the strength and toughness of the aluminum casting, and change the brittleness of elemental aluminum through quenching.

After quenching, the next process is to flash and deburr, followed by rough grinding. After rough grinding, the parts are welded, and after welding, they are finely polished. After fine polishing, spray paint and coloring. Common colors for cast aluminum outdoor furniture are antique bronze, white, and black.

Aluminum leisure furniture is generally cast separately and then combined into a complete piece of furniture through welding and splicing (screw fixation).

Die cast aluminum leisure furniture is formed by stamping with a mold. Die cast aluminum, also known as stamped aluminum, is formed by impacting a steel mold on a stamping machine. Stamping molds are generally not too large in size, and cast aluminum leisure furniture cannot be formed in one go. It can only be stamped in pieces and then welded together.

The difference between cast aluminum outdoor furniture and die cast aluminum outdoor furniture lies in their appearance: the surface of die cast aluminum is smooth, the curvature is excessively natural, there are no traces of polishing, and the gaps are transparent without burrs; There are fine polishing marks on the surface of the cast aluminum, and there are burrs or adhesions between the gaps. Burrs are caused by injecting high-temperature aluminum solution into the gaps between the molds during casting, which forms burrs or burrs after cooling.

The price of cast aluminum outdoor furniture mainly depends on the raw material price of aluminum alloy, and with reference to the production process, the price of complex production processes is slightly higher.

Advantages of Cast Aluminum Leisure Furniture:

1. High end atmosphere, thick and steady, giving people a rich and noble atmosphere;

2. Better performance than solid wood outdoor furniture, UV resistance, and the surface paint will not crack or peel off after being exposed to wind and rain;

3. Non rusting, high hardness and elasticity, wear-resistant and long-lasting use;

4. Comfortable sitting experience, when used in the north, the armrests and backrests may feel a bit cool in winter.

Scope of application: High end residential areas, commercial streets, municipal squares, villa gardens, parks, leisure resorts, scenic spots, home balconies, etc., with an extremely wide range of applications.