Method of manufacturing a heat-resistant resinous tube

Details Method of manufacturing a heat-resistant resinous tube Method of manufacturing a heat-resistant resinous tube

1993-11-19

1995-07-18

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264334, 264347, B29C 4108

Patent

active

054339138

ABSTRACT:
A method of manufacturing and mass-producing a seamless heat-resistant resinous tube with a uniform tube wall thickness and circumference, which includes the steps of coating the precursor solution of a tube material to the surface of a core at a thickness greater than the tube wall thickness; passing a metallic die having a wider inside diameter than the diameter of the core along the outside of the core by utilizing the resistant force of the precursor solution without restricting the metallic die or the core, thus forming a tube around the core; treating the tube around the core to give it strength as a tube; and separating the tube from the core.

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patent: 3840384 (1974-10-01), Reade et al.
patent: 4105733 (1978-08-01), Bonfanti
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patent: 4898702 (1990-02-01), Elkins et al.
patent: 5116551 (1992-05-01), Davidson et al.
patent: 5176666 (1993-01-01), Conway et al.
patent: 5201952 (1993-04-01), Yahagi et al.
European Search Report dated Mar. 7, 1994.
Japanese Patent Abstract of JP1156017 filed Jun. 19, 1989.

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