Gas-Assist Process Creates Tubes With Turns, Fastening Points

IVP Plastics of Washington, Illinois uses a gas-assist molding technology to create a one-shot injection-molded, non-linear hollow shape with 90 degree turns and molded fastening points, according to the company’s sales manager, James Mechowski.

Advantages of the process, which is used to produce tubular cooling system parts for automotive engines, are:

  • Shortened manufacturing time;
  • Elimination of traditional welding, brazing and plating processes;
  • Creation of a more dimensionally accurate component with no chance of rust;
  • Reduction of component cost and weight by as much as 50 percent.

As engine compartments are becoming smaller and more compact, design engineers are looking for replacements for traditional metal tubing and rubber hoses. IVP is using engineering plastics such as polyphenylene sulfide (PPS) that hold up in in high heat and aggressive operating conditions. One material IVP uses is Celanese Fortron PPS, a semi-crystalline polymer that has temperature performance up to 464ºF.

About Doug Smock

Former Chief Editor at Plastics World and Senior Technical Editor Design News
Automotive, Gas-Assist Injection Molding, North America, Polyphenylene sulfide , , , ,

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