| 发明名称 |
HEAT EXCHANGER MANUFACTURING METHOD AND DIAMETER ENLARGEMENT TOOL |
| 摘要 |
A heat exchanger manufacturing method, including rolling a metal sheet into a roll shape to form a tube-shaped body, inserting the tube-shaped body through a through hole formed at a metal fin, and loosening the metal sheet that has been rolled into a roll shape to enlarge the diameter of the tube-shaped body and place an outer peripheral face of the tube-shaped body in contact with a hole wall of the through hole, and after enlarging the diameter, joining together a roll-overlap portion of the metal sheet that has been rolled into a roll shape. |
| 申请公布号 |
US2016361749(A1) |
申请公布日期 |
2016.12.15 |
| 申请号 |
US201415115069 |
申请日期 |
2014.10.15 |
| 申请人 |
SANOH INDUSTRIAL CO., LTD. |
发明人 |
Goto Naoya;Endo Takuma |
| 分类号 |
B21D39/20;B21D53/08 |
主分类号 |
B21D39/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A heat exchanger manufacturing method, comprising:
rolling a metal sheet into a roll shape to form a tube-shaped body; inserting the tube-shaped body through a through hole formed at a metal fin, and loosening the metal sheet that has been rolled into a roll shape to enlarge the diameter of the tube-shaped body and place an outer peripheral face of the tube-shaped body in contact with a hole wall of the through hole; and after enlarging the diameter, joining together a roll-overlap portion of the metal sheet that has been rolled into a roll shape. |
| 地址 |
Tokyo JP |
