Home / News / Company News

Knowledge of garden decoration aluminum casting, do you know?

Nov. 19, 2019

Our company is major in garden decoration aluminum casting and garden decoration cast part. Besides the garden decoration casting design is colorful and beautiful, our products are of good quality and excellent price, they have won unanimous praise from people inside and outside the industry.

During the garden decoration casting designwe should do that. 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. Usually,The following structural problems should be paid attention to in preventing cracks in metal mold casting castings: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 ,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.

Cast Aluminium Fence

Cast Aluminium Fence

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. Therefore, our garden decoration aluminum castingare made of aluminum.

Now I will tell you something about garden decoration cast part now. EPC steel castings are prone to carbon enrichment defects. At present, there is no good method to completely solve this defect in our country, which is also one reason why many casting manufacturers dare not go to EPC or EPC production line but cannot produce in batch. The main reason for the carbon increase defect is that the foam material contains carbon. During pouring, the foam burns and decomposes free carbon, which invades the molten steel. After tests, it is found that there is a certain regularity in the carbon increase, that is, the surface of the casting increases carbon while the core hardly increases carbon. There is no carbon increase near the inner gate, but the further away from the inner gate, the more serious the carbon increase. The following corresponding measures can be taken to make the casting composition basically within the technological requirements

Contact Us
  • +86 411 8263 7319
  • wang@ljmetals.com
  • No. 8, 10/F, No. 15, Renmin Road, Zhongshan District, Dalian City, Liaoning Province