摘要:
The invention relates to a flashing cover with at least one internal corner, apt to seal constructions installed within a roof of the building, in a form of a thin substantially flat sheet of metal provided at its periphery with at least one polygonal cutout. At least two sides of this cutout are one-sidedly slanted forming the walls of the cover joined together into a uniform flange (11) connected with the cover main part (12). Among these two adjacent walls of the flange, at least one wall is a wall (13) non-perpendicular relative to the cover main part (12), At a corner of the flange (11), a radius of a curvature of the flange is many times smaller than a radius of a curvature of the base of the flange. A method of manufacturing a flashing cover according to the present invention comprises the first step of forming in a sheet of metal an embossed area having a bottom of a shape and dimensions corresponding to given desired shape and dimensions of the final produced cover cutout, and subsequently realized the second step of cutting out the bottom of the embossed area from the sheet of metal thus forming a cutout in the cover.
摘要:
A method of manufacturing scored reverse buckling rupture disc (16) of desired reversal rupture pressure including the steps of forming a concave-convex dome (20) in a sheet of metal, selecting the depth and the variation in depth in a direction towards the periphery of the dome of scores (24) to be formed in a surface of the dome, adjusting score forming means according to said sections and forming the scores on a surface of said dome thereby creating lines of weakness therein, said scores extending outwardly from a central portion of the dome towards the periphery. Appalatus of the invention can include an anvil cooperat ing with a curved edged blade in such a way that they are reiati- vely movable, by rotational or longitudinal movement, so that the variation in depth of the grooves from the centre outwardly can be altered.
摘要:
A torque converter has an end cover (10) or input shell which is stamped from a sheet metal plate and has a stiffening portion (12) and an outer flow formed annular rim (26). Fastening lugs (18) are welded to the end cover.
摘要:
The present invention relates to a method for manufacturing frames for ventilation grilles and the ventilation grilles themselves, a frame and ventilation grille thus manufactured, and the use of the frames for manufacturing ventilation grilles.
摘要:
The invention relates to a vehicle component, comprising a cavity with at least one opening for containing hydraulic fluid and a closing means, sealing said opening, whereby the means is embodied as a domed closure disc (1, 7) which may be inserted in the opening (5) and deformed with radial extension by application of an axial force.
摘要:
Die Erfindung betriff ein Verfahren und eine Vorrichtung zur Herstellung einer schalenförmigen, metallischen Dichtungsmembran (1) großer Abmessungen, insbesondere für Industrieofentüren (z.B. Koksofentüren). Diese Dichtungsmembran wird aus einer relativ dünnen Blechplatte in einer Presse plastisch verformt, wofür zwei im wesentlichen aneinander anschließende Formgebungsschritte von Bedeutung sind, nämlich das Biegen der schalenartigen Form in einem ersten Schritt und ein kombinierter Stauch-Schneidvorgang in einem zweiten Schritt, in dem dann entsprechende Umfangsrandabschnitte des gebogenen Werkstückes zwecks Ausbildung einer Dichtleiste (3) verdickt werden, wobei gleichzeitig eine durchgehende Nut (4) in diese Dichtleiste eingeformt wird. Es ergibt sich auf diese Weise eine äußerst einfache und kostensparende Herstellung.