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Today let us discuss the garden decoration aluminum casting, in the garden the garden decoration is very important. Through the garden decoration cast part, we can infer the garden is beautiful and unique. The foundry design of garden adornment should be strict, because it can represent the taste of host.
Garden decoration aluminum casting refers to the equipment and devices of pure aluminum or aluminum alloy obtained by casting.
Generally, the aluminum or aluminum alloy heated as liquid is poured into the mold cavity by sand mold or metal mold, and the aluminum parts or aluminum alloy parts of various shapes and sizes are usually called aluminum die casting.
The density of cast aluminum alloy is smaller than that of cast iron and cast steel, but the specific strength is higher. Therefore, aluminum alloy castings can reduce the weight of the structure under the same load. Therefore, aluminum alloy castings are widely used in the aviation industry, power machinery and transportation machinery manufacturing.
Aluminum alloy has good surface luster and good corrosion resistance in the atmosphere and fresh water, so it has a wide range of applications in the manufacture of civil utensils.
Pure aluminum has good corrosion resistance in oxidizing acid medium such as nitric acid and acetic acid, so aluminum casting has certain application in chemical industry.
Pure aluminum and aluminum alloy have good thermal conductivity. The heat exchange device used in chemical production and the parts required to have good thermal conductivity in power machinery, such as cylinder head and piston of internal combustion engine, are also suitable for manufacturing with aluminum alloy.
As the casting cools and solidifies faster in the metal mold than in the sand mold, and the metal mold has no tolerance, the casting stress generated in the casting is larger than that in the sand mold and has a greater tendency to crack, and it is also prone to defects such as insufficient pouring, cold insulation, white mouth for the casting.
Prevent cracks in metal mold casting:
the requirements for uniform wall thickness, moderate transition and connection between walls, and proper fillet at corners should be stricter than sand casting.
Vertically connected walls should be replaced by obliquely connected walls, and protruding parts such as bosses, ribs and flanges that hinder the free shrinkage of castings shall be minimized.And when reinforcing ribs are arranged on the casting, the influence of the reinforcing ribs on the shrinkage of the casting should also be considered.
In the garden decoration casting design the choice of paving materials should also consider their practicability, i.e. their use value should be fully explored and their aesthetic value should be taken into account. If the material is practical, but lacks aesthetic feeling and has not enough aesthetics, then the viewer's interest in garden architecture will be lost. Therefore, it is necessary to give consideration to both the practical principles and the aesthetics principle
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