Title:
MANUFACTURE OF FAUCET SECTION FOR METAL TUBE AND COMPOSITE TUBE
Document Type and Number:
Japanese Patent JP3164599
Kind Code:
B2
Abstract:
PURPOSE: To provide a method of forming an even tube end face without recesses and projections as the manufacturing method for a faucet section by enlarging the diameter of an end of a metal tube or a composite tube.
CONSTITUTION: The diameter of a tube end is enlarged by compressing a bulge forming rubber 44 in the tube and expanding the same in the diameter direction in the state of setting a tube 42 and a given inner mold 43 in an outer mold 41, and then a projected section 42c on a tube end face 42b is eliminated by thrusting the end face 42b of an enlarged tube end 42a by the tapered face 43a of an inner mold 43.
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Inventors:
Mitsuhiro Watanabe
Tetsuhiro Okuyama
Tetsuhiro Okuyama
Application Number:
JP15020691A
Publication Date:
May 08, 2001
Filing Date:
June 21, 1991
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
B29C57/02; B21D41/02; B21D41/04; (IPC1-7): B21D41/02
Domestic Patent References:
JP569028A | ||||
JP211233A | ||||
JP2130126A | ||||
JP2130127A | ||||
JP4367336A |