For China's industry rapid development fly, nodular casting
credit is indispensable , nodular casting is our country industry
very heavy development project, natural ductile casting
development will promote the development of our country to the
work, nodular casting application range is very wide range of
ductile casting main application neighborhood, electronic
electrician, light industry, bearing industry, auto industry,
and other parts processing, because these behavior for ductile
casting requirement is very high. And if ductile casting quality
is bad words can directly influence the mechanical life, after
machining of nodular casting, paint before must use metal
cleaner or clean industrial gasoline for leaching or scrub,
ensure thoroughly clean the surface of the oil pollution and
other dirt, nodular casting usually use waterproof technology to
line burnish, in order to prevent nodular casting surface rust,
so must the antirust water burnish. It can improve the ductile
casting film of flatness, improve the luster of the film. The
advantages of ductile casting is ductile casting dimension
accuracy is high, uniform, was not done up box, nodular casting
won't produce flash, burr wait for a phenomenon, the production
process will not cause pollution, environmental protection.
Nodular casting surface smoothness is close to precision
casting, ductile casting internal structure is quite stable.
Affect nodular casting performance is annealing treatment. Due
to the ductile casting design shape, wall thickness, and cooling
speed is different, so to ductile casting especially large
ductile casting internal produce casting stress, the casting
stress not handled in time, it will make ductile casting in the
subsequent machining or in use process produce deformation or
crack, in order to eliminate the ductile casting casting’s
stress, then the annealing process for casting processing.
Nodular casting ductile casting smelting also affect nodular
casting quality of the main factors, the certificate cupola
melting process is melting zone melting iron drop in coke
surface rolling falling, it caused a hot metal microscopic
increase carbon nonuniformity, so the crystal cold is lesser,
crystal grain refinement, is not easy to produce white Chuan
electric furnace melting and electric furnace melting molten
iron is in isolation carbon cases, at the same time cause the
distribution of carbon atoms homogenization, make its
crystallization degree of supercooling increases, make ductile
casting surface white tend to increase. The heart say ductile
casting melting or the cupola melting is better.
My company main produce all kinds of ductile casting, grey iron
casting, pump body, impeller pump shell skeleton, alloy casting,
etc. We have various kinds of material casting, high quality and
reasonable price.
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