Injection molding machine
from Dakumar machinery co.,ltd,Zhejiang with good reputation.
China injection molding
machine for injection plastic mold.
Injection molding machine select:
There are many sizes of injection
molding machine,it is based on the injection cycle time and the injection
volume to select machine for the mold.injection volume could be from ounce to
ponds for injection molding machine.
The plastic injection molding machine is
used for produce plastic products.
Injection molding machine have
two parts :melt material and injection system ,open and close mold system .
Melt material and injection
system have the following parts :
Hopper,barrel for heating
,injection plunger or screw .
Open and close mold system:
Hydraulic driver movable platen
and stationary platen,the mold will be mounted there.also,the injection molding
machine with many tyes ,horizontal type and vertical type.
Injection molding machine with
many kinds of design of the shape,generally,there have plunger and screw two
kinds.the biggest different is that the way of material feed from the hopper to
nozzel is not the same .
The rotating screw injection
molding machine is the most used machine ,due to it shorter injection
time,lower melt temperature,mix better .
There many kinds of equipments to
help test and control the clamping system,mold and injection system.The
following are the points which will be test and control:1.cylinder
temperature2.melt temperature in the screw tab3.nozzle temperature4.mold wall
temperature5.temperature of the cooling medium6.internal mold
pressure7.pressure in clamping cylinder8.mold deformation9.mold
breathing10.column elongation11.pressure in the screw tab12.screw advance
speed13.screw displacement14.hydraulic pressure15.oil temperature
Please pay attention to the above
points!
Injection molding machine
injection system used the pressure air for injection.,so the power is very
large.
Injection molding machine
suitable for produce the produce volume production.due to the injection machine
could produce hundreds or thousands products per hour.
Injection molding machine plastic
material choice:
Original,all thermoplastic resins
can be injection molded,but some are difficult for moulding ,need the special
equipments for injection.
From material of polymer
structure,it becomes evident that the resin with wide melting range mold easier
than those with a sharp or narrow melting points.But there still have the
following points should be take care of :the plastic temperature,absorption of
the resin, and the necessary properties required for the products.The acetal
resin has a sharp melting point,turning quickly to a liquid,which need exacting
temperature controls.Polycarbonate requires high injection temperatures,while
nylon absorbs moisture and will will corrode the internal parts of the
injection cylinder unless they are chrome plates.And also some products have
it's special requirements,some need the hardness,some need the transparent some
need the thickness and so on.
From demanders side,we think they
must need the high quality and most suitable Injection molding machine, the
most suitable ?
It should follow the
steps;suitable for the mold.Platic injection mold should be fit for the machine when install it.
When injection,should injection
the products perfect,then require injection molding machine with enough
injection pressure ,could injection enough material for products molding.
For machine itself,should with
high performance and stable characteristic,then the machine could enlong it's
lifecycle.
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export3@cnmould.com