Relative analysis of ductile casting iron plate

19/11/2013 Industrial Equipment

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Ductile iron castings were successfully produced in 1950 in China.Annual production of ductile iron foundry in China was 8.7 million tons in2009,ranking first in the world.As the main development program of China casting industry,the development of ductile casting iron plate gives a deep impression,ductile casting iron tablets for casting industry in China's development is necessary let's do a quick rundown of ductile casting iron tablet related knowledge!Ductile casting iron tablet consists of steel plate and box type two kinds.


Ductile casting iron plate of the overall specifications largest is 4 m x 8 m, ductile cast iron plate on the push table, workpiece is smooth,no hair no hair acerbity feeling,convenient measurement,in order to ensure accurate measurement of ductile casting iron plate heat treatment is very important for flat performance will produce very big effect,so using the casting plate must choose economic meaning of cast iron materials,the methods of aging treatment to eliminate the residual stress of casting slab.Ductile casting iron plate flatness is refers to the package in the working face plate of the actual working face and the distance of the minimum distance between two parallel plane,its value can be according to the diagonal line method, the loop method of the test results are 'base level transformation is obtained. Ideals ductile casting iron plate on the surface of the plane relative to the actual concrete bearing plays a decisive role.Ideal for different azimuth plane and each point on the surface of the actual distance is different.Machining of micro quality refers to the processed profiles tiny tiny peak valley roughness spacing.


Ductile casting iron plate local error refers to the flat face flatness machining quality.The coarse degree. Microstructure are of good quality,resistance to wear, the service life of the tablet.And face small local distortion is within the scope of processing of uneven and deformation.This working face, a small scale for small tablet is local position, on the tablet is the local area.


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