Green Sand Castings
Green sand casting process has been widely used
worldwide, and many types of metal castings were produced by this
process.
Green sand materials are very cheap and recyclable. They could be
used to produce small and middle sizes and weights castings. In
addition, this material is also suitable for both small amount and
large batch production. However, it is only suitable for making iron
castings, not for steel castings.
The followings are some green
sand castings produced by our foundry.
1. Valve Bodies
Butterfly valve
bodies normally have many models, but small annual demand.
So, they are suitable for green sand. Both GGG40 and GGG50 ductile
irons are suitable material grades for these products. Our foundry
are producing valve bodies from DN50 to DN500.
2. Tractor Parts
Tractor and auto parts have large annual
demand, and have high requirements to the dimensional tolerance and
material quality. Therefore, we produced these parts by automatic
molding line. We are produced tractors parts for John Deere and some
auto parts manufacturer in China.
3. Brackets for trucks
Ductile iron brackets are very important casting parts for
engineering trucks, especially for hydraulic system. High percent of
spheroidization and less iron casting defects are the key aspects of
product quality. We are producing many cradle brackets for our
clients in Italy, Germany and UK.
4. Stove grates
Stove grates and burners do not have high requirements to
the material grade. Normally, GG15 and GG20 are very suitable.
However, the surface smoothness and less sand holes are very
important. Green sand could meet the middle requirements, and shell
molding could meet the high requirements, but which is more costly.
5. Boiler ash doors
Boiler parts normally required to add
some content of Cr to resist high temperature. Of course, surface
quality is also important for ash doors.
However, most of boiler parts do not have large annual demand, so
green sand castings are suitable for these products.
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