Nitrogen Gas for Manufacturing Molded Plastics

Nitrogen gas is a key component of successful plastic manufacturing. Through various methods, nitrogen gas helps to prevent discoloration and oxidation during the manufacturing process. Additionally, it helps the plastic polymer stay strong, which is especially important when large molds are being used. Here is a closer look at how nitrogen gas is used in plastic manufacturing and why on site nitrogen gas makes it all the more efficient.

Plastic Manufacturing Methods that Rely on Nitrogen Gas

There are several different uses for nitrogen gas, some of which include:

  • Injection Molding– In this method, nitrogen is used as an inert gas to displace any oxygen that is in the mold. Oxygen holds moisture, so if it is molded into the plastics, it can lead to defects. By filling the mold with nitrogen, the manufacturers can be sure no oxygen is present.
  • Gas Assist Injection Molding (GAIM) – Gas assist injection molding is a multi-step process that is used when large plastic parts are being made. The issue with larger molds is that the formed plastic can shrink during the drying stage. However, when nitrogen is injected into the mold, the polymer expands to fill every empty cavity and ensures the polymer does not breakdown during the cooling phase.
  • Plastic Extrusion – In order to create plastic pipes, tubing, etc., a process called extrusion is used. In this method, the polymer is pressed through the molded shape to create a long, continuous form, and nitrogen gas is used to displace all oxygen. If present, the oxygen can lead to damage of both the equipment and the product being made.

On Site Gas Systems for Nitrogen Generation

Nitrogen is a key component of successful plastics manufacturing, so facilities can’t afford to run out. With an on site nitrogen generator from On Site Gas Systems, manufacturers can produce their own nitrogen gas on demand, so they always have it when they need it. They can also produce their own nitrogen at pressures above 3,000 PSIG to meet any needs of molded plastic manufacturers. They can improve efficiency since there is no managing the delivery, removal, or replacement of nitrogen cylinders, and they can save money because the ongoing expense of nitrogen gas is eliminated. Our nitrogen gas generators are ideal for plastic manufacturing and they can generate nitrogen at the purity necessary for flawless results.
If you rely on nitrogen for a quality product and a smooth production process, then you need to contact us today. We will work with you to create a nitrogen generator setup that meets your facility’s production demands, and we will demonstrate how the generator can pay for itself in a lot less time than you think.