A Brief Introduction to Plastic Injection Molding

one of PTMS plastic injection molded parts

With plastic injection molding, it’s possible to produce many parts with quick cycle times and great accuracy. Generally, the injection molding process includes heating, melting, and injecting a certain amount of polymer materials into a mold under high pressure. Following are the main units of an injection molding machine:

Feed hopper
Heated barrel
Injection unit (or crew)
Clamp unit, which holds the mold together
Ejection unit, which removes the part from the mold

Benefits

Injection molding provides a plethora of benefits, including:

Cost savings

Automated plastic injection molding tools augment the efficient, already fast process of manufacturing quality parts. Compared to the traditional manufacturing process, injection molding produces less waste.

Flexible choice of color and material

To produce the right effect and properties for your particular product, you can choose from a number of color blend choices and coloring systems.

Strength

The proper balance of material and design choice can help manufacture parts that will stand up to their intended use.

Fast, efficient production

Thanks to injection molding’s fast production times, achieving greater profit margins and increased revenue is no longer a distant dream.

power-connector

Ideal for designing complex parts

Using the right design, complex parts can be built in high volumes. Plus, the subsequent production runs to ensure that they’re virtually identical.

With a combination of a good design and a manufacturability test, you can prevent the mistakes in determining whether or not plastic injection molding is the right choice for a project. By paying attention to design and testing, you’ll create a mold that will consistently produce parts in flawless condition.

Types

There are many types of injection molding. While certain prototypes require a water-free environment, others require timeproof and highly stable materials. This versatility is another advantage of injection molding. The following are 5 types of injection molding:

LIM (liquid injection molding)
Metal injection molding
Gas-assisted injection molding
MMM (multi-material injection molding)
Thin wall molding

Industries where injection molding is used

Injection molding is a very effective tool that may be applied to any field one could possibly imagine. Flawless and precise regulars are appealing to many manufacturers in industries like electronics, cosmetics, optics, medicine, etc. Following are the top 5 industries where injection molding is used:

Consumer electronics
Automotive components
Cosmetics
Optics
Medical devices

Get high-quality products with PTMS’ injection molding services

Since 2002, PTMS has been working in injection molding mass production. With more than 20 years of experience and 80% of employees having previously worked in multinational corporations, PTMS is the leading injection molding manufacturer in China you should trust.

Get in touch with them for more information on their injection molding!

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