Nitrogen Machine Used In Plastics Manufacture And Injection Molding
January 06, 2023
Nitrogen Machine Used In Plastics Manufacture And Injection Molding
The plastics industry has most applications, including the use of nitrogen. Nitrogen is used in plastic manufacturing to prevent oxidation and discoloration, helping to maintain the integrity of the polymer. Nitrogen is also used as a propellant to aid the injection molding process. These applications include gas-assisted injection molding, tank blanking, and extrusion processes. Our tested and proven PSA Nitrogen Generator technology can separate the readily available nitrogen in the air we breathe.
The air is 78% nitrogen; Our systems mechanically filter out other gases and concentrate nitrogen in tanks for your process. Clean, dry compressed air enters one of two adsorption vessels containing carbon molecular sieves (CMS). Smaller oxygen and residual molecules are adsorbed into the CMS, allowing larger nitrogen molecules to pass through and enter the storage tank for later process use. After saturation, the second absorption vessel comes online, while the first one regenerates and releases its captured gas.
This type of injection molding uses nitrogen as an inert gas to push the polymer from the tank into the mold. This helps to fill the part completely and also reduces shrinkage. Nitrogen gas is pushed into the mold under high pressure, ensuring that the polymer reaches all areas of the mold. Nitrogen can also be used as a propellant for blow molding applications that require hollow parts. By using nitrogen as a propellant, you eliminate the polymer's ability to come into contact with oxygen, thereby reducing oxidation and discoloration of the polymer.
