Title:
MANUFACTURE OF COMPOSITE METALLIC TUBE
Document Type and Number:
Japanese Patent JP3695192
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method for a composite metallic tube, excellent in the efficiency of manufacture and cost-wise advantageous without needing to separately prepare two metallic tubes.
SOLUTION: An aluminum material 13 is drawn, by the rotation of a rotary wheel 1, into a path 4 which is constituted of a groove part 2 on the outer periphery of the rotary wheel 1 and shoe block 3 with which a specified circular- arc length of the groove part 2 of the rotary wheel 1 is covered and fed into a material collecting chamber 5 where is at the back of the path 4. A copper tube 8 is fed into the through-hole 7 of the shoe block 3, introduced to the material collecting chamber 5 and an extruding die 6 which is communicated to the chamber and, after coating the circumference of the copper tube 8 with the aluminum material 13, the tube is extruded from the extruding die 6.
Inventors:
Tatsuya Sotoki
Application Number:
JP1471199A
Publication Date:
September 14, 2005
Filing Date:
January 22, 1999
Export Citation:
Assignee:
Hitachi Cable Ltd.
International Classes:
B21C37/06; B21C1/22; B21C23/21; B21C23/22; F16L9/02; F16L9/14; (IPC1-7): B21C37/06; B21C1/22; B21C23/21; B21C23/22; F16L9/02; F16L9/14
Domestic Patent References:
| JP1284422A | ||||
| JP5076925A | ||||
| JP61170502A | ||||
| JP57159213A |
Attorney, Agent or Firm:
Tadao Hirata
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