Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1998-01-09
2000-03-28
Ortiz, Angela
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264275, 264DIG54, B29C 4514, B29C 7070
Patent
active
06042771&
ABSTRACT:
Method and apparatus for manufacturing a composite insulator including an FRP core rod which is integrally provided with a sheath and a plurality of sheds formed of an electrically insulating polymeric material. The core rod has a longitudinal end portion provided with a seat for a metal fitting, which is integral with the sheath. To manufacture such a composite insulator, the core rod is placed in a mold cavity of a mold assembly, with a seat forming member detachably fitted to the end portion of the core rod and arranged between a pair of mold halves. An inner space is formed between the seat forming member and a core rod, which is in communication with the mold cavity. An electrically insulating polymeric material is introduced into the mold cavity to form the sheath and sheds, while admitting the polymeric material into the space between the seat forming member and the core rod so as to form a seat for the metal fitting, which is essentially free from burrs.
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NGK Insulators Ltd.
Ortiz Angela
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