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Plastic is essential to our daily life
Release time: 2016年03月02日

Recently years, with the rapid development of plastic industry and the improvement of engineering plastic intensity & precision; plastic material products are used in many fields, such as home appliances,instruments,architectural material,automotive industry,daily metal parts etc, the plastics plays a vita role in our daily life. The trend of plastic application in industrial products and daily products are keeping rising. 

The first plastic injection molding process was used to produce hair combs, buttons and collar stays. Starting in the 1940s, when high demand existed for mass-produced products that were inexpensive to manufacture, the industry expanded exponentially. In 1946, at war's end, came the invention of the first screw-type injection machine, which provided for more precise control of a consistent shot, thereby improving the quality of the products being made. Molds were being made for any variety of applications and what was once used to make buttons and combs was now being employed to produce a wide range of items for many industries, including:

- Aerospace

- Automotive

- Consumer products

- Construction

- Medical

- Packaging

- Plumbing

- Toys

Raw materials used in the plastic injection molding process include thermoplastics, thermosets and elastomers. Also called polymers or resins, there are more than 20,000 unique formulations that can be injected into molds to produce parts with specific properties to be utilized for specific purposes. Examples of common thermosetting plastics include polymers such as epoxy and phenolic. Common thermoplastics are ABS, PC,PP, ABS+PC,PA66(nylon), PE(polyethylene) and PS(polystyrene).

Injection molding machines are fairly simple and straightforward, consisting of a hopper where raw material is placed, a heating cylinder and an injection plunger. Molds are typically made from steel or aluminum. Major advantages to using plastic injection molding for the manufacture of parts include:

- Available to complete high production rates

- Repeatability of high tolerances

- Low labor costs

- Minimal scrap loss

- Little need for finishing

-Long lifespan 

- Wide range of materials available for specific applications

Whether it's an electronic housing or a automotive parts being produced, injection molding is efficient and economical, especially if large numbers of items are being made. The only real disadvantage is initial start-up costs incidental to obtaining the necessary equipment and the time, expertise and resources required for mold design. Experienced mold design makes products molding smoothly. 

Injection molding is the most common plastic molding process and is used to create a huge variety of complex parts of different size and shape. Products can be produced of a highly complex geometry that other processes are unable to duplicate, and at a fraction of the cost. When one stops to think about the role plastics play in our everyday lives, it's difficult to imagine a life without this ubiquitous substance. Plastics are now available that are actually stronger than steel, more durable than almost any substance on earth and relatively inexpensive to produce and reproduce a million times over and again.

Professional plastic material parts maker, feel free to contact us for your projects!