| 摘要 |
An elongated metallic strip is provided which has oppositely disposed convolutions constituted by sinuosities, corrugations, nodes, or the like, and said convolutions are constituted by nadir and zenith convolutions. Provided on the nadir and zenith convolutions are cooperative hinge and locating means assisting in the juxtaposition of said nadir and zenith convolutions to one another, said integral hinge means being provided thereon to facilitate the disposition of such strip into a helical configuration. A seal is provided which is created by helically winding the strip to locate edges thereof in a cylindrical sealing configuration by juxtaposing the convolutions of the strip in operative relationship with one another and welding said convolutions to one another. The method of fabricating the aforesaid seal includes the progressive deformation of the metallic strip into a helical configuration with successive convolutions of said strip having juxtaposed zenith and nadir portions whose juxtaposition is facilitated by the provision of the cooperative locating and hinge means thereupon and the subsequent step of welding the juxtaposed zenith and nadir portions of the strip together. This invention relates to a honeycomb core strip, a seal fabricated from said honeycomb core strip and the method of fabricating said seal. It also relates to a flat configured panel fabricated from said core strip. Although the invention will be described as utilized to fabricate seals for use in jet engines, steam turbines and the like, the teachings of the invention can be applied with equal cogency in other applications and it is not intended, by disclosing the use of the invention in a particular application, to limit the use thereof. |
