发明名称 |
Laser barrier material |
摘要 |
In the laser drilling of a hole through a wall of a gas turbine blade into a cavity within the blade there is provided an injectable PTFE substitute for injection into the cavity before laser drilling. The PTFE substitute prevents strike-through of laser light to the opposite wall of the cavity. The PTFE substitute used is fluorinated ethylene propylene or a copolymer having a PTFE backbone and fully fluorinated alkoxy side groups. |
申请公布号 |
US5140127(A) |
申请公布日期 |
1992.08.18 |
申请号 |
US19910737467 |
申请日期 |
1991.07.30 |
申请人 |
ROLLS-ROYCE PLC |
发明人 |
STROUD, DAVID;CORFE, ARTHUR G. |
分类号 |
B23K26/18;B23K26/38;B23K35/22 |
主分类号 |
B23K26/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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