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Contact: Packson
Company: Packson Mold Co., Ltd
No.2 Building,Rongtong Industrial Park,Wulian Village,Fenggang Town,Dongguan,China
dongguan 523695
China
E-Mail: Send Inquiry
Date/Time:  4/6/22 8:51 GMT
 

Silicone Rubber Injection Molding

Silicone rubber injection molding has more than a half-century history since
the late 1970s. There are two molding ways of silicone rubber injection molding
process: Liquid Silicone Rubber Injection Molding (LSR) and Solid Silicone
Rubber Molding. There are thousands of applications of silicone rubber
injection molding in various industries like medical, automotive, electronics,
etc.

As the one of professional silicone rubber molding company, Packson has been
working with silicone molded components for many years. Especially for liquid
silicone rubber injection molding, we have become OEMs supplier of BD medical
for producing medical rubber cathethers. We have the capability to offer liquid
silicone rubber injection molding service that start from prototyping to serial
production manufacturing.

At Packson, we have equipped with more than 9 liquid silicone rubber injection
molding machines with ISO class 8 cleanroom that meets the need of medical
contract manufacturing. We are able to provide quick, high-quality service and
our professional engineering team who has rich experience in liquid silicone
rubber injection molding, to help you in the whole project process. Contact
Packson today if you need liquid silicone rubber injection molding service.

Custom Silicone Rubber Injection Molding Service For Your Business
Liquid silicone rubber injection molding parts have the feature of durability
with good tensile strength and are used to high volume, tight tolerance.
Therefore it is widely used in various industries especially for medical parts.

Here are the advantages of liquid silicone rubber:

Excellent insulating properties, good for tight tolerance/precision components

Good tensile strength with high/low-temperature extremes

Good resistance for water, oxidation also some chemical solutions like acids.


Silicone Rubber Injection Molding ProcessThe silicone dousing unit starts in
two parts

Composed A and composed B pumps one Part A silicone and one Part B silicone via
separate hoses to the static mixer. Cylinder A contains the basic material.
while cylinder B contains a catalyst. In addition, color is pumped to the
static mixer via another hose. The mixed components are then fed into the
throat of the injection molding barrel by way of a shut-off valve. This is the
whole silicone rubber injection molding process.

Sealing against the Silicone Rubber Molded Parts

Once the silicone material is inside the barrel, a shot of the cool mixed
silicone advances to the mold as the nozzle seals firmly against the silicone
rubber liquid mold.

Injection

The nozzle shut-off valve opens and a measured shot of cool liquid silicone is
injected into a hot (275F to 390F) clamped silicone rubber molded parts.

Barrel retracts from the mold

The nozzle shut-off valve opens and the barrel retracts from the silicone
rubber liquid mold, while the screw begins to build another measured shot of
cold liquid silicone.

Closes and repeats the procedure

After the cycle is complete, the mold opens and the piece and flashing can be
taken off automatically or by an individual worker. After that, the mold
closes and repeats the procedure.

Post-molding process

After removing the article from the mold, the post-molding process may include
demisting, post-curation, inspection, and packing.


Silicone Rubber injection Molding Application
Molding Parts

-Silicone rubber injection molding can be qpplied in molding parts. Moulded
part is a good way for low quantity production from dozen to hundred of the
part even millions of parts. The molding part is better than the part machined
by CNC or 3D printing with the same material. The right choice for resin used
in the molding part allows for a wide range of properties. Mold is essential
medial for the molding part. So molds machined by CNC and Wire cut EDM with
high precision and tolerance are enable make thousands of parts.

Certifications

Rapid Prototye

As a professional precision mould part manufacturer, Packson Mold provides
custom molding services, medical grade plastics injection molding, clean room
injection molding and etc. We have amassed considerable experience and
understanding of the practical possibilities in this field. Contact us to know
more.

Minimum Order: 1 sets

Silicone Rubber Injection Molding
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