The plastic injection moulding machines derive from the machine of smelting to pressure for metals, according to some references, the first machine of I mold it was patented in 1872 for the injection of cellulose nitrate, but due to his flamabilidad and dangerousness, the process did not bloom.

Injection molding is a proces that involves injecting semi polymer or ceremic in liquid status (molten) in a closed mold under pressure  and cold, through a gate.

Thus the mold after injection plastic or material used solidifies starting to crystallize in semicrystalline polymers. Finally, part or parts is achieved by opening the mold and removing it from the cavity where it has been molded.


The plastic injection moulding is one of the plastic processing technologies most famous, as it represents a relatively simple manufacturing of components with complicated shapes. This requires an injection machine that includes a mold whose cabide the shape and size with the same as for the piece to be obtained. In the cavity is made molten plastic injection, which solidifies and maintains the molded shape.


Thanks to injection molding method, there are a variety of pieces that can be made. The advantages of these injection techniques are the speed of manufacture, processes, scalable design from rapid prototypes and molds, high levels of production and low cost, complicated geometries impossible with other techniques, the resulting pieces require little or no finish extra since they obtain the desired surface, color and transparency.
 

If you are interested please visit our catalog of injection molding machines of different brands:

• Plastic injection molding machines under 5000 KN
• Plastic injection molding machines over 5000 KN
• Electric injection molding machines