19/11/2013 Industrial Equipment
After decades of development,Chinese foundry industry has made remarkable achievements.China's casting productions reached 42.5million tons in 2012,accounting for 44% of world production,which has ranked first in the global casting production for 12 consecutive years.As we all know,castings are widely used in many fields,and we may be familiare with valve casting,pump casting parts,harware casting.However,how many people really know the characteristic of casting foundry?
Casting blank forming methods is more economic, more can show it to complicated shape parts of the economy.Such as automobile engine cylinder block and cylinder head,Marine propeller and exquisite works of art, etc. Some difficult to cutting the parts, such as gas turbine nickel-based alloy parts forming without casting method.
In addition,the size and weight of casting parts to adapt to the range is very wide,almost unlimited types metal; Parts in the general mechanical properties,but also has wear-resisting,corrosion resistant,shock absorption, such as comprehensive performance,is other metal forming methods,such as forging, rolling, welding, punching,etc.So using produced by the method of casting blank parts in the machine manufacturing industry,on the number and tonnage so far is still the most.
Casting production often want to use the material with various metals,coke,wood,plastics,gas and liquid fuels, molding materials,etc.Smelting metal required equipment have to use all kinds of the stove,with all kinds of sand mixer,sand mixing with various molding machine molding core making,core making machine, have clean castings with shakeout machine,shot blasting machine,etc.And for special casting machinery and equipment and many transportation and materials handling equipment.
Casting production have different characteristics with other technology, wide adaptability, more materials and equipment will be needed, pollute the environment. Casting production will produce dust, harmful gases, and noise pollution to the environment, compared with other mechanical manufacturing process is more serious, need to take measures to control it.
For casting engineers and mechanical structure design engineer, heat treatment is a very meaningful and very high value to improve the method of material quality, through heat treatment can change or influence the organization and properties of cast iron, and can obtain higher strength, hardness, and improve the wear resistance and so on.
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