Portable Plastic Tool Box Injection Mould

Our Zhejiang Ceeto Mold Company has 10 years of professional experience in the Middle East market and is particularly a world leader in Customized Portable Plastic Tool Box Injection Mould. Medical Syringe Plastic Injection Mould,Power Tools Aluminium Die Casting Mould field also has a global reputation.

In combination with skilled mold designers, software technology, and the use of expensive CNC Machinery, MSI builds molds for plastic injection that are used to produce high quality molded plastic parts. Our injection molding experts look forward to working with you on your mold build project as the next step toward manufacturing your custom molded parts. If you’re looking for an injection mold supplier, we have you covered.

Molds For Plastic Injection

Receiving high-quality plastic parts starts with buying a quality built mold. We’ll work with you every step of the way to ensure you’re familiar with the different types of molds for plastic injection that are available, and we’ll make sure you’re completely informed before you buy.

Injection Molding Process

Plastic injection molding requires three primary components – an injection molding machine, a mold, and raw plastic material. Molds for plastic injection consist of high strength aluminum and steel components that have been machined to operate in two halves. The mold halves come together inside the molding machine to form your custom plastic part.

The machine injects molten plastic into the mold, where it solidifies to become the final product. The injection molding process is actually a complex process with many variables of speed, time, temperatures and pressures. The complete process cycle for making each custom part can range from no more than a few seconds to several minutes. Below we offer you a very brief explanation of four steps of the molding process

STEP 1

Clamping

Before the plastic is injected into the mold, the machine closes the two halves of the injection mold with tremendous forces which prevent the mold from opening during the plastic injection step of the process.

STEP 2

Injection

Raw plastic, generally in the form of small pellets, is fed into the injection molding machine at the feed zone area of a reciprocating screw. The plastic material heats up by temperature and compression as the screw conveys the plastic pellets through heated zones of the machine barrel. The amount of melted plastic that is conveyed to the front of the screw is a strictly controlled dosage because that will be the amount of plastic which will become the final part after injection. Once the proper dosage of melted plastic reaches the front of the screw and the mold is fully clamped, the machine injects it into the mold, pushing it into the endpoints of the mold cavity under high pressures.

STEP 3

Cooling

As soon as the molten plastic contacts the internal mold surfaces, it begins to cool. The cooling process solidifies the shape and rigidity of the newly molded plastic part. The cooling time requirements for every plastic molded part depends on the thermodynamic properties of the plastic, the wall thickness of the part, and the dimensional requirements for the finished part.

STEP 4

Ejection

After the part is cooled inside the mold and the screw has prepared a new shot of plastic for the next part, the machine will unclamp and open the plastic injection mold. The machine is equipped with mechanical provisions that work with mechanical features designed within the plastic injection mold to eject the part. The custom molded part is pushed out of the mold during this stage and once the new part is fully ejected, the mold is ready for use on the next part.