发明名称 |
Device for supporting weld underbead |
摘要 |
An elastomeric mandrel has a shallow groove around the outer diameter. A woven sleeve of ceramic fiber surrounds the mandrel; which in turn is covered with a woven sleeve of fiberglass. The mandrel with coverings is inserted into tubing to be joined by welding with the shallow groove positioned under the joint. The mandrel is diametrically expanded by means located outside of the tubing to press the coverings against the inside of the tubing during time of welding, and the height of the weld underbead is controlled by the groove in the mandrel acting as a mold.
|
申请公布号 |
US4465220(A) |
申请公布日期 |
1984.08.14 |
申请号 |
US19830479430 |
申请日期 |
1983.04.25 |
申请人 |
THE BOEING COMPANY |
发明人 |
LEDLOW, JIMMIE E.;STOOPS, PAUL M. |
分类号 |
B23K9/035;(IPC1-7):B23K5/22 |
主分类号 |
B23K9/035 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|