There are many products that can be made by blow mould

Injection blow molding is widely referred to as a manufacturing
process. This process combines the precision of injection molding with
minimal waste and rapid Blow Mould.
It can work with plastic. It specializes in creating divine shapes such
as bottles. Because blow molding methods are less expensive than
manufacturing methods, these methods are commonly used to make larger
containers by using extrusion blow molding. The output of this technique
is usually not clear glass seams.

The blow mould process involves three stages, including injecting
material into a preform mold, blow molding, and final product discharge
from the machine. The commonly used machine configuration is a blow
molding machine with these stages. The machine can rotate 120 inches at
each stage of the molding process.

The injection phase begins when molten glass or plastic is injected
into the preform mold on the mandrel. It can form the interior of the
parison, you can also complete the neck. Then, the parison is separated
from the mold and then inserted into the blow mold. In the blow mould,
the parison will be pressurized air to inflate. Then, after cooling, the
product will be discharged from the machine. The final step is to test
whether the product leaks and then move it to another station for
collation or labeling.

When designing a model of the product you are about to make, you have
to think about some important issues. You must consider choosing the
right thermoplastic resin for your application, designing the geometry
of the mold, shrinking the material during the cooling phase, and
calculating the amount of material to be injected. Another important
factor you have to consider is choosing the right pressure to inflate
the parison. At design time, the tolerances of the mandrel and the
preform mold must be taken into account so that core erosion can be
perfectly placed on the center of the mold and the parison can have a
constant wall thickness. There are many products that can be made by
blow mould, especially bottles, cans, and small containers. Mould Maker - pet-mould.com

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