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As a world-leading solutions provider to the plastics industry, Linde offers its PLASTINUM family of technology and solutions.

Linde’s PLASTINUM family of precision metering, cooling, pressure boosting and control systems include:

  1. Cost-effective, high-pressure CO2 system for enhanced Gas-Assist Injection Molding (eGAIM)
  2. High-pressure nitrogen boosting system for traditional Gas-Assist Injection Molding (GAIM)
  3. Spot cooling system for mold hot spots
  4. High-pressure CO2 metering system for extrusion foaming

Linde is a leading industrial gas and engineering company providing solutions for plastics and polymer processing. Liquid carbon dioxide (CO2) and nitrogen (N2) play an important role in the advanced processing of injection-molded plastics, as well as in reducing ozone-depleting blowing agents in PS/PUR foaming operations.

Three trends, in particular, are driving the shift toward greater use of CO2 and N2 solutions: 1) lower production costs/faster cycle times, 2) more demanding parts design/performance requirements, and 3) corporate sustainability goals. With global expertise, Linde incorporates these solutions into manufacturing operations using precision gas pressure and metering systems. A reliable supply of the inert gas is always part of the solution.

Our core expertise includes:

Injection Molding

Spot Cooling

Spot cooling of “hot spots” inside injection molds using cryogenic CO2 or N2 can be a straightforward solution to many types of injection molding challenges, including better mold release and reduced cycle times.

Gas-Assist Injection Molding (GAIM) / Enhanced GAIM (EGAIM)
Precise injection of gases in gas-assist injection molding (GAIM) operations can improve cycle times and processing efficiencies. Enhanced GAIM (EGAIM) can improve mold filling for intricate part geometries such as automotive bezels or hollow channel parts such as appliance handles, or parts for certain medical devices, with an even greater reduction of cycle time due to the cooling effects of CO2.

Typical End Uses of Injection-Molded Parts

  • Automotive / Aerospace. High-performance designs with varying wall thicknesses.
  • Medical. Tubular parts, e.g. for injectable devices.
  • Appliances. Hollow parts such as handles.
  • Machine Parts. For consumer, industrial and electronic equipment.

Plastics Foaming
The use of high pressure cryogenic CO2 (or N2) as blowing agents in polystyrene (PS/EPS) and polyurethane (PUR) foaming and extruding operations can improve gas flow through the polymer matrix for more consistent cell structure and better cycle times. Linde high-purity industrial gases can also and also help meet corporate sustainability goals by reducing the need for ozone-depleting compounds (ODP) as blowing agents.

Typical End Uses of Injection-Molded Parts

  • Insulation. PUR / PS insulation board / foam board for construction and appliances.
  • Packaging. Shaped PS foam for vibration resistance in shipping sensitive parts and equipment.
  • Upholstery. PUR foams for seat cushions and upholstery for cars, furniture, etc.