The rapid development of China automobile, motorcycles, household appliances and other industries, the industrial products meet performance requirements become more sophisticated at the same time. This requires that the manufacturers of these products does not make molds, mold manufacturing industry was the fastest speed, lowest cost and highest quality products. To meet these requirements, mold will only be able to use advanced management tools and integrated manufacturing technologies in an invincible position in the fierce market competition.

Foundry production will inevitably meet with some questions and concerns, explained in focusing on both of the following common issues.

First, why did die polishing aluminum castings scotomata?

The prospect, we die quickly, China mould industry's annual import and export volume has reached $ 4 billion, of which considerable import and export levels will be about $ 2 billion. Suppliers Association official Luo Baihui International mould ＆ plastic mold industry not only large and level are more and more rich prospects.

For years, China's mold industry is in the geographical distribution of the output, Southeast of rapid development of faster development in the Central and Western parts of the South than in the North of the Pearl River Delta and Yangtze River Delta region's output value accounted for more than two-thirds of the country's highest concentration of mould production regional imbalances.

China's mould industry is more developed Pearl River Delta, the Yangtze River Delta area and extends north to the Mainland, the new mold production is concentrated in area industrial layout, Beijing, Tianjin, Changsha, Chengdu, Chongqing, Wuhan, in Central Anhui region collect mold develop new features, die (city, a gathering place, and so on) continue to appear. Has formed to the East, and Wuxi, Kunshan precision mold production base in the industrial clusters, Wuhu automobile production base, botou industrial clusters; huangyan, Ningbo, Shenzhen, Dongguan production base of large, precision tooling industry clusters.

Appeared a large number of Chinese mold industry leader in private enterprise, the rise of private enterprise is in the mold of the main, took up the whole mold the absolute leading position in the market of the private mold mould industry in industrial structure adjustment to accelerate rapid development. Mold industry in China is General optimistic China mold industrial in in recent years accelerated reform of pace and mechanism conversion, and industry structure became more reasonable, main for large, and precision, and complex, and long life mold standard growth than overall growth of industry; larger proportions of plastic mold and die-cast mold; increased of number and capacity of to market for oriented of professional mold manufacturer faster; with economic reform of in-depth, "specializing in" and private development quickly.

There are two reasons:

First is the potential development of a Silicon oxide or aluminium oxide. Solution is very simple, is to use green aluminum ingots. Another possibility is that too much mould release agents, or high organic matter content of the spray release agent. Release agent in the organic material in the hot temperature of molten aluminum, carbon reduction, some organic polymers. These molecules and polymers in aluminum casting process have been mixed, is contained in the surface layers, as we see in the spots. Solution: excess release agent can reduce the concentration of aerosols if mold release organic content is too high, you can switch to a different sprays, or after a longer time, in order to reduce the accumulation of carbon and polymer resistance spray hair.

Second, why the aluminum casting hole allowances should not exceed 0.25 mm, please?

Suitable for die casting, aluminum die casting, coupled with the amount of Silicon (SI). Condensation and Silicon in aluminum alloy die floats to the surface, forming a thin layer of the Silicon film. This layer of silicon thin-film hardness is very big and very wearable. Some OEM designers porous surface with the immediate goal of this feature is to be used as a support surface (surface layer of silicon), die castings. It is generally between 0.2 and 0.9 mm, processing too much, it will shorten the service life of the bearing surface.