Thursday, 24 January 2013

Design your mould and plastic products with your custom parts at SINOMOULD

SINO offer you not only moulds or machines, but also plastic parts molding solutions. We have more than 20 sets plastic injection molding machines can used for making productions.
The process of plastic injection molding as below:

Injection molding is one of the most common methods of shaping plastic raw material. It is accomplished by injection molding machines of various plastic materials. Granular plastic is fed to the machine through the hopper and colorants are usually fed to the machine directly after the hopper. The resins enter the injection barrel by gravity though the feed throat. Upon entrance into the barrel, the resin is heated to the appropriate melting temperature. The resin is injected into the mold by a reciprocating screw or a ram injector. The reciprocating screw apparatus is attached to the screw motor drive in the above illustration. The reciprocating screw offers the advantage of being able to inject a smaller percentage of the total shot (amount of melted resin in the barrel). The ram injector must typically inject at least 20% of the total shot while a screw injector can inject as little as 5% of the total shot. Essentially, the screw injector is better suited for producing smaller parts. The mold is the part of the machine that receives the plastic and shapes it appropriately.  The mold is cooled constantly to a temperature that allows the plastic to solidify and be cool to the touch. The mold plates are held together by hydraulic or mechanical force. The clamping force is defined as the injection pressure multiplied by the total cavity projected area. Each resin compound has a calculated shrinkage value associated with it.
China mould maker and plastic injection molding maker—SINO Holdings is a china Mold-making factory specializing in plastic injection moldings and injection molds manufacturing, exporting to worldwide with Europe and USA standard.
SINO offers crate moldings, chair moldings, plastic packaging product moldings, pipe fitting moldings, medical use products moldings and etc. According to customers’ special requirement, SINO also design the products or moulds in order to customer custom parts.
SINO persist in high quality mold making, good service and responsibility. We believe quality is the only and the best way to compete and survive. Please do not hesitate to contact us if you have any further question or requirements. SINO welcome your new enquiries.


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