The injection molding is the most important step to get the finished part after the mold complete; the precondition is verified injection mold, proper dried up resin, proper injection press, and experienced process engineer; simply ,Injection molding is a process of  Injection molding machine press the melted plastic into the mold and get the desired shape of plastic part after cooling and ejection up, comparing with other processing method, injection molding has advantage of efficient, productivity, it has strictly requirement for mold construction and injection press , so it is mainly for high-volume production of injection molded parts.

Injection molding machine commonly used plunger cylinder / screw cylinder. Injection molding process: Dry up the resin to required tempture within 2~4 hours, feed the plastic raw material from the hopper into the barrel, the plunger start to rotating, the plastic raw material is pushed into a heating barrel and then through the bypass shuttle, the molten plastic through the nozzle into the mold cavity, then water or oil run through the designed cooling system to cool down the mold to get a plastic article. Injection molded parts from the mold cavity is typically required for proper treatment to remove the stress generated during molding process to have good dimensional stability and performance.

There are a lot of products produced by injection molding, most of the articles we frequently use in our office or our home, industrial application, automotive, medication, etc. it contributes a lots to production efficiency and makes low cost production is realistic.

Advantages of Injection Molding
The major advantage of plastic injection molding is that it is very cost effective and fast. Unlike a “cutting” manufacturing process, injection molding reduces the possibility of undesired sharp edges. This process produces smooth and finished products that require no further finishing. Not only is the injection molding process simpler and more reliable than others methods, but it is also extremely efficient. Here are some of the top advantages of the injection molding process

Fast and efficient: The plastic injection molding process is extremely fast compared to other methods and the high production output rate makes this process even more efficient and cost-effective. Once the injection molds have been designed to specifications the actual molding process is very fast compared with other methods of molding, allowing for more parts to be manufactured from a single mold. Manufacturing speed is dependent on the complexity of a mold design, but on average only about 15 to 30 seconds pass between cycle times.

Complexity of part design: Injection molding can handle extremely complex parts, and uniformity, as well as the ability to make millions of virtually identical parts. Since the plastic injection molds are subjected to extremely high pressure it is possible to add a large amount of detail to the part’s design.

Waste reduction: A high-volume injection molding company shares a commitment to quality, sustainability, and optimal safety. The benefit to the environment is by only using required amount of plastic to build parts. Recycling excess plastic benefits environment and minimizes waste.

Lower labor costs: Much of the injection molding process is automated and controlled by a single operator or mold technician. This keeps labor costs at a minimum. The molding equipment typically runs with a self-gating, automatic tool to keep operations streamlined and production ongoing, requiring minimal supervision.

Strength: While it is possible to use fillers in the injection molds, these fillers reduce the density of the plastic while being molded and help add to its finished strength after the molding process. Finding the proper balance of design considerations determine the part’s need for strength and stability. The strength and durability of plastics has increased over the years. Modern lightweight thermoplastics can withstand even the most rugged environments.

Versatility in materials and color: Choosing the right material and color for a project are two of the essential factors in creating plastic parts. One mold can produce may variations of your product. Color and material type are relatively easy to change in injection molding machines.