There are different processes of plastic
molding. Injection molding is one of them. It is a system used to
develop parts from plastic materials. Usually the process starts by
injecting a molten plastic into a mold at high pressure. Then it is
injected into the inverse design of the desired shape to develop the
exact shape it needs to be designed. Some of the other types of molding
are blow molding, film insert molding, compression molding, rotational
molding, thermoforming and structural foam molding.
The growths of the companies which make
use of this technique are high today due to the heavy demands of the
customer’s for the products. Most of the industries make use of molds.
Some of the industries include oil and gas, agriculture, medical,
construction, electrical, food, consumer products and many other
industries are making use of injection molds abundantly. Moreover we can
say the China plastic mold services now serve several industries.
Types of plastic molding processes:-
Injection molding:-In this process the
melted plastic is injected into mold cavity. After it gets cool, the
mold is removed. Usually the plastic molding process is commonly used
for mass production of a product. The injection molding machines are
used to mass produce toys, bottle caps, kitchen utensils and cell phone
stands and many more.
Compression molding:-In this process a
slug of hard plastic is pressed between two heated mold halves. This
plastic molding process normally uses vertical presses. The horizontal
presses are used for bow and injection molding. After heating the parts
formed are then cooled.
Film insert molding:-This technique sets
an image under the surface of molded part. Then a material like fabric
or film is inserted into a mold. Then the plastic is injected.Gas assist
molding:-This is also called as gas injection molding. It is used to
create plastic parts with hollow interiors. Then partial shot of plastic
is followed by high pressure in order to fill the mold cavity with
plastic.
Structural foam molding:-This is a process of plastic molding normally used for the parts which requires thicker wall than standard injection molding China. The walls will be thicker by inserting a small amount of chemical blow agent into the plastic material.
Now we can have many utensils and other
tools as they can be manufactured with plastic and very cheaply. If
plastic is not there then we would have to pay a lot for our standard
household items. It might be impossible for some people to obtain them.
However, plastic is cheap, very stable and extremely malleable.
