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公开(公告)号:US5567335A
公开(公告)日:1996-10-22
申请号:US352546
申请日:1994-12-09
申请人: Peter Baessler , Alan Marriott , Urs Maurer , Marcel Oberholzer
发明人: Peter Baessler , Alan Marriott , Urs Maurer , Marcel Oberholzer
IPC分类号: B23K9/235 , B23K11/06 , B23K11/08 , B23K11/34 , B23K13/02 , B23K26/00 , B23K26/20 , B23K31/00 , B23K37/04 , B23K37/053 , H05B6/62 , H05B6/80 , B23K11/087 , B23K26/02
CPC分类号: B23K13/02 , B23K2201/16
摘要: Sheet metal edges to be welded are preheated prior to welding. At a given welding speed, this results in a smaller temperature gradient in the material to be welded. Consequently the welding speed can be increased, or material which would otherwise provide poor weld quality can be welded at a high temperature gradient. The preheating is carried out for example by high-frequency excitation of the material to be welded.
摘要翻译: 待焊接的钣金边缘在焊接前进行预热。 在给定的焊接速度下,这导致待焊接材料的温度梯度较小。 因此,可以提高焊接速度,否则将提供较差焊接质量的材料可以在高温梯度下焊接。 预热例如通过被焊接材料的高频激发来进行。
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公开(公告)号:US4161770A
公开(公告)日:1979-07-17
申请号:US834841
申请日:1977-09-19
申请人: Urs Maurer
发明人: Urs Maurer
CPC分类号: B64F1/205 , B64F1/20 , F21W2111/06
摘要: A device for producing an optical guide signal is disclosed. This device is particularly suitable for installation in airport runways and comprises a covered housing containing a light source and a prism wherein a portion of the prism projects above the cover of the housing such that light emitted from the source is both transmitted through the prism and is also internally reflected within the prism before emerging at one of the surfaces of the said projecting portion of the prism.
摘要翻译: 公开了一种用于产生光导信号的装置。 该装置特别适用于安装在机场跑道上,并且包括一个包含光源和棱镜的被覆盖的壳体,其中棱镜的一部分突出在壳体的盖上方,使得从源发射的光都透过棱镜,并且是 在棱镜的所述突出部分的一个表面出现之前也在棱镜内部反射。
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