Abstract: A method for the manufacture of a profile having a cross-section of different thicknesses from a flat metal strip is provided. In this process, a roller pair produces at least one first recess on at least one side of the metal strip, the recess being widened by following roller pairs with incrementally enlarged recess width to form a region with a reduced material thickness. The aim of the invention is to improve the production process, in particular to avoid the formation of undulations during the production of the profile. For this purpose, the invention provides that regions of the flat metal strip which are arranged adjacent to the at least one recess are bent up before and/or during an engagement of a roller pair.
Type:
Grant
Filed:
September 12, 2008
Date of Patent:
February 11, 2014
Assignee:
Welser Profile AG
Inventors:
Thomas Welser, Kurt Aigner, Harald Schachinger
Abstract: The invention relates to a method for the manufacture a profile with a cross-section of different thicknesses from a flat metal strip (7) by means of roll-profiling. In this process, a roller pair (2.1, 2.2) produces at least one first recess on at least one side of the metal strip (7), said recess being widened by following roller pairs with incrementally enlarged recess width to form a region with a reduced material thickness (12.1, 12.2). The aim of the invention is to improve the production process, in particular to avoid the formation of undulations during the production of the profile. For this purpose, the invention provides that regions of the flat metal strip (7) which are arranged adjacent to the at least one recess (9.1, 9.2) are bent up before and/or during an engagement of a roller pair (2.1, 2.2).
Type:
Application
Filed:
September 12, 2008
Publication date:
December 23, 2010
Applicant:
WELSER PROFILE AG
Inventors:
Thomas Welser, Kurt Aigner, Harald Schachinger
Abstract: Retaining rail (1) for holding down roofing membranes of flat roofs comprises a web (13) and lateral edge folds (14,14?). The web (13) is provided with openings (11) for attaching fastening means (10). Each of the lateral edge folds (14,14?) forms bearing-side shoulders (21,21?). The web (13) lies above the bearing plane (26) defined by the bearing-side shoulders (21,21?).
Type:
Application
Filed:
March 20, 2007
Publication date:
February 26, 2009
Applicants:
SIKA TECHNOLOGY AG, WELSER PROFILE AG
Inventors:
Norbert Tholl, Reto Bucher, Walter Hintersteiner
Abstract: The invention refers to a method for the production of a metal mining plug with grooves applied to the exterior thereof. In order to achieve an easy and simple manufacture of the metal mining plug and to achieve at the same time a long durability of the metal mining plug when being used in rock mass, a metal mining plug is formed of a flat material which is provided with grooves and which is formed to a tube by means of cold rolling.
Abstract: Method for production of an eyelet, during connection of workpieces where material of an outermost workpiece is pulled through openings in the other workpieces, using a single feed movement of rim hole or eyelet punch to both shape the eyelet from the one workpiece and generate the openings, in the other workpieces by breaking out one or more pieces of materials, providing a reduction in the number of operating steps and simplifying such steps.