What is Metal Casting?
Many new buyers may be confused about what
is metal casting. Herein, we
will briefly introduce some main characters of metal castings.
Sometimes, as a buyer, you will find the requirements of producing
by casting process. The casting process is a serial production
process, mainly include melting pig iron or steel scraps, adding
alloys, pouring the liquid iron into molds, then after cooling, the
metal castings will be made out. So, what is metal casting? Casting
is a kind of production method, and sometimes, it also means the
product made by this method.
According to the main materials, the metal castings could be divided
into iron castings,
steel castings, aluminum
castings, alloy castings, bronze castings, etc. According to the
molds and processes, they could be divided into
sand castings, metal mold
castings, die castings, lost wax castings, lost foam castings etc.
Where can we find metal castings in our life and
Metal castings could be used for many areas, sometimes, metal
castings were called as the base of industrial. For example, many
metal parts of automotive and machinery such as car, truck, tractor,
weeding machine were made by metal castings. Moreover, the castings
could be made into various stove and boiler parts, pump and valve
parts, pipe fittings, manholes, and many metal parts. In a short
word, if you saw something that have metal parts, them most of these
parts will be made by casting process.
Of course, most of rough
castings without machining could not be used directly, so
the further machining process will be necessary. If you want to get
special characters, then the alloy, heat treatment and surface
coating will be also required. Finally, you will see a very
dedicated metal part.
Why the metal castings could be used so widely?
It is mainly because the metal castings are cheaper than other
processes, their inside and outside structures could be very
complex, could reach very high production rate, and better physical
characters after adjusting the materials, production process and
The factory who produce metal castings was called as metal foundry.
There are many iron and steel foundries in China. The workers in a
metal foundry could be several to hundreds. The annual output for
metal castings could be hundreds to ten thousands of tons.