BE373874A - - Google Patents

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Publication number
BE373874A
BE373874A BE373874DA BE373874A BE 373874 A BE373874 A BE 373874A BE 373874D A BE373874D A BE 373874DA BE 373874 A BE373874 A BE 373874A
Authority
BE
Belgium
Prior art keywords
sheet
cut
stamped
fittings
stamping
Prior art date
Application number
Other languages
French (fr)
Publication of BE373874A publication Critical patent/BE373874A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/28Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29Making branched pieces, e.g. T-pieces
    • B21C37/296Making branched pieces starting from strip material; Making branched tubes by securing a secondary tube in an opening in the undeformed wall of a principal tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Volume Flow (AREA)

Description

       

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  Procédé de fabrication des raccords pour conduites tubulaires. 



   La présente invention a pour objet un procédé nouveau de fabrication rationnelle et économique des raccords pour con - duites tubulaires (conduites   d'eau,   gaz, air comprimé, vapeur, canalisations électriques), lequel s'applique aussi bien au cas des raccords en T, des coudés, etc. avec et sans couvercle ou voyant. 



   Jusqu'ici, ces raccords étaient obtenus par coulage de fonte malléable ou douce, tandis que, suivant l'invention, ils sont obtenus par découpage, emboutissage, cambrage, soudage et filetage d'une tôle d'acier.   L'invention   consiste essentielle - ment dans la combinaison des quatre opérations successives : découpage de la tôle, emboutissage, cambrage ou roulage, et   so udag e.    



   Les raccords ainsi fabriqués sont d'une grande solidité ; tout danger de fuite peut être évité, même aux fortes pressions, par exemple en soudant à   10 autogène.   La production en grande série et à grande vitesse permet de diminuer le prix de revient 

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 et libère les consommateurs des longs délais de livraison exigés des fondeurs. 



   Le dessin annexé montre le processus de fabrication de deux raccords en T, l'un avec et l'autre sans couvercle. 



   Dans les deux cas, on découpe   (fig.l)   dans une tôle d'acier, une pièce.,un plan de forme générale rectangulaire, à coins' coupés en arrondi. A l'aide d'une matrice, on emboutit alors   ( fig.2   et   3 )   cette pièce 1 de façon à redresser à angle droit par rapport au plan de la pièce, les bords des arrondis. La fig. 



  2 est une vue en plan et la fig.3 une vue de profil. 



   La pièce ainsi emboutie est alors roulée ou cambrée autour de l'axe   I-I,   pour l'amener dans la forme de la   fig.4,   après quoi les bords en   vis-à-vis  des parties redressées à l'emboutis- sage sont soudés, éventuellement à l'autogène et, si nécessaire, les extrémités des branches du T obtenu sont filetées. On voit qu'on peut, de cette manière, obtenir   (fig.5)   pour la partie 3 un diamètre différent de celui de la partie 4, par un choix judicieux des proportions du rectangle découpé ; rien n'empêche également de donner à la partie 3 une section transversale ova - le, rectangulaire, carrée ou autre. 



   Dans le cas d'un raccord en T avec couvercle ou voyant rapporté par vis ou autrement sur une ouverture du raccord, il suffit, fig.6et 7 , de découper dans la pièce de base, lors de l'emboutissage, une lumière 5 qui formera (fig.8 et   9)   la   lumiè-   re permettant de vérifier l'intérieur du raccord, surtout dans le cas de conduites électriques. Cette lumière sera fermée au moyen d'une plaquette de même forme, fixée amoviblement par des vis pénétrant dans les trous 6 forés dans le raccord. 



   Le procédé décrit s'applique à toutes formes de raccord, en une ou plusieurs pièces, assemblées par soudure et provenant d'un plan découpé et embouti partant d'un métal en feuille.



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  Manufacturing process of fittings for tubular conduits.



   The present invention relates to a new process for the rational and economical manufacture of fittings for tubular conduits (water, gas, compressed air, steam, electrical conduits), which applies equally well to the case of T-fittings. , cubits, etc. with and without cover or sight glass.



   Hitherto, these fittings have been obtained by casting malleable or soft iron, while, according to the invention, they are obtained by cutting, stamping, bending, welding and threading a sheet of steel. The invention consists essentially in the combination of the four successive operations: cutting the sheet, stamping, bending or rolling, and welding.



   The fittings thus manufactured are very solid; any danger of leakage can be avoided even at high pressures, for example by autogenous welding. Large-scale, high-speed production reduces the cost price

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 and frees consumers from the long delivery times demanded from founders.



   The accompanying drawing shows the manufacturing process for two T-fittings, one with and the other without a cover.



   In both cases, is cut (fig.l) in a sheet of steel, a piece., A generally rectangular plane, with rounded corners' cut. Using a die, this part 1 is then stamped (fig. 2 and 3) so as to straighten at right angles to the plane of the part, the edges of the rounded edges. Fig.



  2 is a plan view and FIG. 3 is a side view.



   The part thus stamped is then rolled or bent around axis II, to bring it into the shape of fig. 4, after which the edges facing the parts straightened by stamping are welded. , optionally with autogen and, if necessary, the ends of the branches of the obtained T are threaded. We see that we can, in this way, obtain (fig.5) for part 3 a diameter different from that of part 4, by a judicious choice of the proportions of the cut rectangle; there is also nothing to prevent part 3 from having an oval, rectangular, square or other cross section.



   In the case of a T-fitting with cover or sight glass attached by screw or otherwise on an opening of the fitting, it suffices, fig. 6 and 7, to cut in the base part, during stamping, a slot 5 which (fig. 8 and 9) will form the light allowing the inside of the fitting to be checked, especially in the case of electrical conduits. This lumen will be closed by means of a plate of the same shape, removably fixed by screws entering the holes 6 drilled in the fitting.



   The method described applies to all forms of connection, in one or more parts, assembled by welding and coming from a cut and stamped plane starting from a sheet metal.


    

Claims (1)

REVENDICATIONS. CLAIMS. 1. Procédé de fabrication de raccorde pour conduites métalliques tubulaires, caractérisé en ce que le raccord est fait d'une tôle d'acier découpée, emboutie puis soudée aux bords amenés en juxtaposition, c'est-à-dire partant du métal en feuille. 1. A method of manufacturing a connector for tubular metal conduits, characterized in that the connector is made of a cut steel sheet, stamped and then welded to the edges brought into juxtaposition, that is to say starting from the sheet metal . 2. Procéda suivant revendication 1, caractérisé en ce que la tôle, d'abord emboutie, est ensuite roulée, cambrée ou cintrée suivant l'axe voulu, puis soudée à 1 autogène ou autre aux bords amenée en juxtaposition. 2. Method according to claim 1, characterized in that the sheet, first stamped, is then rolled, bent or bent along the desired axis, then welded to 1 autogenous or other at the edges brought into juxtaposition. 3. Procédé suivant revendications 1 et 2, caractérisé en ce que, après l'emboutissage, on découpe dans la tôle une lumière qui recevra une plaquette-couvercle formant voyant. 3. Method according to claims 1 and 2, characterized in that, after stamping, a slot is cut from the sheet which will receive a cover plate forming an indicator. 4. Procédé suivant revendications 1 et 2, caractérisé en ce que la soudure est faite à l'autogène. 4. Method according to claims 1 and 2, characterized in that the welding is made with autogen.
BE373874D BE373874A (en)

Publications (1)

Publication Number Publication Date
BE373874A true BE373874A (en)

Family

ID=44733

Family Applications (1)

Application Number Title Priority Date Filing Date
BE373874D BE373874A (en)

Country Status (1)

Country Link
BE (1) BE373874A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780173A2 (en) * 1995-12-22 1997-06-25 J. Eberspächer GmbH & Co. Method of manufacturing a pipe section, particularly a branch pipe manifold and branch pipe manifold produced thereby
EP1242200A1 (en) * 1999-04-13 2002-09-25 McKenna, Joseph Method of forming t-connectors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780173A2 (en) * 1995-12-22 1997-06-25 J. Eberspächer GmbH & Co. Method of manufacturing a pipe section, particularly a branch pipe manifold and branch pipe manifold produced thereby
EP0780173A3 (en) * 1995-12-22 1998-10-21 J. Eberspächer GmbH & Co. Method of manufacturing a pipe section, particularly a branch pipe manifold and branch pipe manifold produced thereby
EP1242200A1 (en) * 1999-04-13 2002-09-25 McKenna, Joseph Method of forming t-connectors
EP1242200A4 (en) * 1999-04-13 2004-03-31 Joseph Mckenna Method of forming t-connectors

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