Manufacturing method for a multi-channel copper tube, and manufacturing apparatus for the tube
US8336604B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 14, 2007 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jun 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12292
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This manufacturing apparatus for a multi-channel tube having a plurality of parallel channels includes: a crucible; and a die set for forming the multi-channel tube from molten copper supplied from the crucible, the die set including: a hollow portion having an inner surface shaped like the profile of the multi-channel tube; punches which are inserted into the hollow portion from an inlet end of the hollow portion to define a space between the inner surface of the hollow portion and each of the punches; and a feed passage which is disposed between the crucible and the space, and configured to feed the molten copper from the crucible to the space, the molten copper being supplied from the crucible to the space within the die set through the feed passage to solidify as it passes through the hollow portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.