Other

Saint-gobain Vitrage

Wsp Ingenieurgesellschaft Fur Warmetechnik, Stromungstechnik Und

Bayer Aktiengesellschaft

Degussa Aktiengesellschaft

Mercedes-benz Aktiengesellschaft

Swiss Aluminium Ltd.

Glasstech, Inc.

Palitex Project Company Gmbh

Sundwiger Eisenhutte Maschinenfabrik Gmbh & Co.

Sundwiger Eisenhutte Maschinenfabrik Gmbh

Duerr Gmbh

Ingenieurgemeinschaft Wsp Prof. Dr. Ing. Carl Kramer, Prof. H.j. Gerhardt M.sc.

Ingenieurgemeinschaft Wsp, Prof. Dr.-ing. C. Kramer, Prof. Dipl.-ing. H. J. Gerhardt M. S.

Ingenieurgemeinschaft Wsp, Prof. Dr.-ing C Kramer, Prof. Dipl.-ing H.j.

Carl Kramer

Hans J Gerhardt

Bernd Konrath

Bernd Berger

Peter Reinthal

Eckehard Fiedler

Reinhard Grundmann

Hans-Werner Kuster

Ronald A McMaster

Bernhard Hilge

Martin Knoch

Hans W Kuster

Karl-Eugen Metzger

Ulrich Kreft

Hans-Joachim Gerhardt

Dieter Ahrens

Karl-Heinz Dicks

Jean C Coulon

Wolfgang Schaefer

Markus Becker

Hans Sustmann

Claude Le Marrec

Klaus Berns

Dirk Menzler

A device for heat treating metallic webs in-line, in particular for operation with a low-density protective gas, comprises stabilising nozzle systems which stabilise the course of the web and effect heat transfer, primarily by forced convection, in the heating portion and at least in the first portion of cooling. The web is guided in a non-contact process in the treatment portion localized by rollers. The course of the web exhibits a concave curvature (as viewed from above), at least in a partial area in the treatment portion. The area of said concave curvature can be in a fluid which is different from the fluid with which the web is blown in the heating portion and at least in the first portion of the cooling area.

Device for heat treating metallic webs in-line

The invention relates to a device for guiding bands in a suspended manner and for stabilizing bands, preferably wide metal bands, for the purpose of heat treating the same. In the device, the band is blown on both sides with the aid of suspended nozzle sections, and two respective radial ventilators with 360&deg; spiral casings are arranged on the side walls of the device in the vicinity of both sides of the band. The intake openings of the radial ventilators point toward the middle of the device. The axes of the radial ventilators are vertical in relation to the side walls, and the radial ventilators are arranged in such a way that they deliver air into air delivery channels ( ) of the length of at least one hydraulic diameter in a manner parallel to the longitudinal direction of the device, that is, in a direction of movement of the band. The air delivery channels ( ) are adjacent to the upper casing ( ) or the lower casing of the device via a side wall. Elbows are respectively connected to the air delivery channels ( ). The volume stream delivered from said elbows by the radial ventilator enters a collecting receptacle which extends as at least one piece over the entire length of the device and which is provided with the nozzle section on the side facing the band, said nozzle field being approximately equal in width to that of the collecting receptacle. The gas stream blown on the band predominantly flows away and up to the longitudinal sides of the device and enters from the sides of the device into the suction area between the radial ventilators above and below the band ( ).

Device for guiding bands in a suspended manner

A nozzle array for levitational guidance of web material. The nozzle array includes a sequence of nozzle areas in the transport direction of the web which are peripherally encompassed at least in part by fanned jets and their width varies in the direction transversely to the web transport direction. The nozzle areas may be equipped with orifice nozzles. Located between the nozzle areas are return flow zones which may be configured as return flow passageways open towards the web, whereby their cross-section is flared in the direction of the edges of the nozzle array. The nozzle areas may be v-shaped relative to their longitudinal axis oriented in the transport direction of the web. Clusters of nozzle areas may be arranged juxtaposed as viewed in the web transport direction.

Nozzle array for levitational guidance of web material

The invention relates to a device for cooling extruded profiles (,) comprising slotted air nozzles (,U,,O) arranged above and below the extruded profile moving on an exit runway (,) and oriented transversely to the direction of movement of the profile, and water impingement nozzles (,) for impinging the extruded profile with water, wherein the water impingement nozzles are arranged separately from the slotted air nozzles (,U,,O) in tubes (,) oriented in the direction of movement of the profile such that the impingement portions of the individual water impingement nozzles (,) supplement to achieve a homogenous impingement of the extruded profile (,).

Device for cooling extruded profiles

An apparatus for levitational guidance of a continuous web of material for the purpose of its heat-treatment is configured of individual zones. The form ducting of the zones has the shape of an U in the vertical longitudinal center section above and below the web in each case, the legs of the U being located parallel to the transport direction of the web. The legs adjacent to the web are equipped on the side facing the web with levitation nozzle ribs or nozzle areas. In the legs facing away from the web, a radial fan is incorporated in each U, the delivery direction of which is directed towards the turn joining the two U legs. Heating means are arranged to advantage in the heating zones in the region between the two legs of the U. Coolers may be incorporated to advantage in the region of the turn joining the two U legs.

Apparatus for levitational guidance of web material

Wind tunnel having a free jet test section for simulating wind direction

Apparatus for cooling extrusion press profile sections

A device for removing liquid from the surface of a moving strip (B), more particularly a rolled strip on a roll stand, by means of a gas, more particularly air, blown on to the moving strip (B), is characterized according to the invention in that disposed transversely of the direction (L) in which the strip runs is a slot nozzle (3) which is directed at the strip surface at an angle (.beta.) of 45.degree. to 90.degree. of its jet oppositely to the direction (L) in which the strip runs, the ratio between the distance (h) of the slot nozzle (3) from the moving strip (B) and the width (s) of the slot is in the range h/s=2 to h/s=10, so that the velocity of emergence of the gas jet blown by the slot nozzle (3) on to the strip (B) is in the range of 0.3&lt;Mach&lt;2, and a suctional removal gap (4) is disposed above the strip (B) at a distance of 5 to 25 nozzle distances (h) in the direction (L) in which the strip (B) runs upstream of the line of impingement of the gas jet emerging from the slot nozzle (3).

Device for removing liquid from the surface of a moving strip

A quench station (14) including apparatus for quenching a heated glass sheet G conveyed by rolls (22) of a roller conveyor (20) is disclosed as including upper and lower sets of blastheads (32) having outlets (34) that are positioned closer to the conveyed glass sheet than the conveyor roll radius R and which are oriented and sized to provide highly efficient quenching such as during heat strengthening or tempering. These blasthead outlets (34) are preferably round and the blastheads (32) are vertically aligned with each other to provide aligned locations (36) of impingement with the oppositely facing surfaces of the glass sheet. In one embodiment, a set of upper roll mimics (38) located above the conveyor rolls (22) in a vertically aligned relationship provide symmetry that results in uniform quenching of both the upper and lower glass sheet surfaces. In another embodiment, the upper set of blastheads (32') each have a greater dimension along the direction of conveyance than the lower set of blastheads (32') to balance the average gas pressures at the upper and lower glass sheet surfaces.

Apparatus for performing high efficient symmetrical quenching of roller

The invention relates to a device for cooling a laminar material, more particularly a metal strip 2, by liquid nozzles 11a, 11b, 12a, 12b disposed on both sides. The liquid nozzles 11a, 11b, 12a, 12b take the form of full-jet nozzles and so act upon the surface of the material 2 to be cooled by rebounding jets that zones of shooting flow SS are formed around the point of impingement of the individual rebounding jets.

Device for cooling a laminar material, more particularly a metal strip

The invention relates to an apparatus for the preferable two-dimensional arching of glass sheets heated to the softening temperature comprising a following cooling section, the horizontal guiding of the glass sheets taking place on a plurality of movable transport rods and rollers which form a horizontal surface. The transport rods are provided in two groups which project outwardly from a respective mounting at the two lateral edges of the roller hearth furnace into the roller hearth furnace surface; the two groups of the transport rods are pivotal by a pivot movement via their respective mountings downwardly between linear forming elements, in particular forming rods, the joint upper tangential surface of which corresponds to the contour of the lower side of the arched glass sheet. Alternatively, at least one edge region of some transport rods may be pivoted upwardly to arch glass sheets or panes having one or two bends, for example bus windows or display case panes.

Apparatus for the arching of glass sheets heated to the softening

The invention is directed to an attachment assembly for securing two membrane strips loosely laid parallel to each other and overlapping with each other. The attachment assembly incorporates a load distribution plate having short and long lateral lever-arm extension means and a bore hole defined in the plate, a fastener screw operatively connected to the load distribution plate through the bore hole, and a fastener screw operatively connected to the load distribution plate through the bore hole. The short and long lateral lever-arm extension means of the plate extend in directions relative to the fastener screw. The short lateral lever arm extension means operates with forces due to the billowing of the roofing membrane so as to uplift a long edge of the load distribution plate and thereby introduce a first force corresponding to a lever arm ratio at the long lateral lever arm extension means at an area opposite to the bore hole. The long lateral lever arm extension means operates with the first force such that the first force generates a pinching action between the roofing membrane and the load distribution plate.

Attachment assembly for securing roofing membranes

An apparatus for the bilateral blowing of a treatment gas onto a web-shaped material comprises a treatment space for the approximately rectilinearly moved web-like or sheet-like material, nozzle ribs arranged on both sides of the web-like or sheet-like material for introducing the treatment gas stream into the treatment space and radial fans for generating the treatment gas stream on the one hand and symmetrical extraction of the treatment gas from the treatment space on the other hand; each radial fan is installed into a 360.degree. spiral housing; the two radial fans are arranged point symmetrical at 180.degree. and each blow into a blow-out duct disposed on the longitudinal side of the apparatus; and each blow-out duct comprises a first region of constant or approximately constant cross-setion and a distributor piece with cross-section diminishing in the flow direction.

Apparatus for the bilateral blowing onto a web-like or sheet-like

A high-convection gas jet nozzle section for a sheet-like material guided over rollers, in particular for thermal prestressing or tempering of thin flat glass sheets, comprises a lower nozzle field having nozzle ribs disposed centrally parallel between the rollers and provided with nozzle apertures and an upper nozzle field of which the nozzle ribs provided with nozzle apertures are arranged symmetrically to the vertical axis of each respective lower nozzle rib; the nozzle bottoms of the upper nozzle ribs have the cross-section of a letter 'M' extended by a center strip; the width of the nozzle bottom of the upper nozzle ribs is greater than the horizontal distance between the rollers and smaller than the roller pitch; the center strip and the two upwardly tilted inner legs of the upper nozzle bottoms are provided with nozzle apertures; and the smallest distance of the upper nozzle ribs from the upper side of the material is greater than the smallest distance of the lower nozzle ribs from the lower side of the material; the downwardly directed outer legs of the upper nozzle bottoms constrict the downflow region for the gas emerging from the nozzle apertures of the upper nozzle ribs on either side of the upper nozzle ribs, giving as a whole a very symmetrical gas action on the material from above and below.

High-convection gas jet nozzle section for sheet-like material guided

In a floodwater and a process for floodwashing workpieces wherein the workpiece is immersed in a bath of washing liquid and a workpiece surface is acted upon by at least one jet of washing liquid issuing from a nozzle, in order to achieve optimum cleaning efficiency of the jets with as low pumping capacity as possible, it is proposed that a free jet be used as jet and that the nozzle be guided at a distance from the workpiece surface which at most is approximately twice the length of the jet core of the free jet.

Floodwashing process and floodwasher

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Aachen, Germany

Carl Kramer