Casting is one of the
oldest of the procedures performed in the metal. Products that use this method.
Here is an attempt to improve the knowledge of casting parts.
Casting
is one of four types: sand casting, permanent molding and
plaster molding. All those kinds of castings and disadvantages. Depending on
the characteristics of the product that is building and to determine the
casting.
Sand
Casting: Sand Casting is the oldest cast on. These shapes form
the texture of 1950.The use depends on the product used in sand casting. As the
final smooth finish later. Generally speaking, iron, Sand
Casting Steel, brass, copper, aluminum and magnesium,
which also often include the use of lead, tin and zinc.
Continuous
Casting: the permanent mold used two parts of the mold. Merged
porous matrices and molten metal into the mold. This means that the cooling of
hot metal and mold parts are separated. Some products have an extruded metal,
which is removed by grinding or hand flash. Usually made of tin, lead, zinc,
and with this method.
Plaster:
The plaster is one of the easiest ways. As always be used for metals with a low
melting point, such as zinc, Aluminum cobut and. This is the simplest process,
the mold can easily inhibit the process.
Die
Casting: This is done by introducing molten metal into the mold
die casting high or low. And before only the injection molding of low pressure,
but is now in the high pressure Castings
India on a larger scale. Models are well designed to make
complex products with incredible precision and a smooth finish. It is made of
high quality stainless steel has a higher melting point. It can be reused many
times these models. It can be a mold cavity that only a single component,
multi-cavity that simultaneously produce multiple identical parts, the
different parts of die and die unit produces combination that produces results
different parts together. Zinc alloy is commonly used based on copper,
aluminum, magnesium, tin, lead and tin smelting.
Using We cast products
with pore-free products that do not allow the passage of gas well and strong.
And the use of two types of casting machines. Cold and hot casting department.
Use molding department hot
metal high liquidity. The first is that the molten metal the swan neck to
collect and released in the metal mold. The advantage of this method is / min
increasing. But the downside is that the metal support high melting point and
aluminum particles of iron absorption.
Used foundry cold room
where you can not hot circuit can be used. In this process, the molten metal to
the injector tip, and then injected into the mold metal. Metals with high
melting point are launched with this process, but the downside is that the slow
hot pie.
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