EP1388379A1 - Device for drawing or stretching (wires, bars, tubes) with a quasi zero wear of the die and the reaching of optimal tribological conditions - Google Patents
Device for drawing or stretching (wires, bars, tubes) with a quasi zero wear of the die and the reaching of optimal tribological conditions Download PDFInfo
- Publication number
- EP1388379A1 EP1388379A1 EP02356158A EP02356158A EP1388379A1 EP 1388379 A1 EP1388379 A1 EP 1388379A1 EP 02356158 A EP02356158 A EP 02356158A EP 02356158 A EP02356158 A EP 02356158A EP 1388379 A1 EP1388379 A1 EP 1388379A1
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- EP
- European Patent Office
- Prior art keywords
- hardness
- die
- threaded
- tubes
- tube
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/02—Specified values of viscosity or viscosity index
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/12—Die holders; Rotating dies
- B21C3/14—Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
- B21C9/005—Cold application of the lubricant
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/062—Polytetrafluoroethylene [PTFE]
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/02—Groups 1 or 11
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/32—Wires, ropes or cables lubricants
Definitions
- the present invention relates to a device for drawing or to stretch ferrous or non-ferrous metals as wire, bar, tube or non-cylindrical profile by applying very high pressures in front of the working cone of the wire drawing process (7) of FIG. 2, thus creating an anti-wear film, thanks to selected lubricants.
- Metal drawing and drawing conditions tribological are such that the factories are faced with anticipated wear and tear on the supply chains, therefore budgets important, to anticipated wear of the Metallization, capstans, to excessive consumption of wire drawing soap, to creation of surface defects on the wires with all their unfortunate consequences for the final product. in addition lead the manufacturer to reduce by 30 to 50% the speed of machines, this, by force of circumstances, with the loss of consecutive productivity.
- the device according to the invention makes it possible to remedy, quantitatively and qualitatively to all these disadvantages inherent in the Trades supra.
- Threaded or not there are 3 dimensional models of tubes for be able to cover the whole range of wire diameters to be drawn.
- the part (3) is a square of 60X60m / m of steel (XC48) welded on the flanges of the casting machine after a meticulous alignment.
- the tube (1) of great thickness and high hardness, is terminated by a mirror-polished cone (8) which fits perfectly into the mirror-polished cone made of Tungsten carbide or other material of the die (11).
- the tightening under high pressure is done by the threaded sleeve of (2) which is fitted with a hexagon nut (10); a flat (9) allows the tube to be held during its plating in the cone of the die.
- the cylindrical dies (11), according to the European ISO model, are housed in a very thick metal ring (12), which itself is introduced into the die holder (13).
- the lubricant, greases or oils of high viscosity or lubricant powder flows into (5) by means of a translucent funnel adjusted to the diameter of the hole.
- the ring (14) allows to receive a die / guide with a diameter greater than 20 / 100 m / m to that of the diameter of the wire (18).
- the wire with its speed and its roughness causes lubricant "extreme pressure" in the cramped corridor (6) to (4) and thus plays the role a real compressor piston.
- Zone 4 benefits from a lamellar flow, of the hydrodynamic type which has the consequence of bending the metal before the point of impact on the carbide track or other material .
- the "drawing ring" on the tungsten carbide cone or other disappears and with it, the anticipated deterioration of the die, the "drawing ring” is a halo on the cone (8) of tungsten carbide due to the impact of metal arriving at high speed, generally soiled on its skin with metal particles of an earlier origin, and also due to the strong pressures to which the carbide track is subjected (8).
- This phenomenon anticipates death of the sector; it has always been known in the trade, but real solutions have not been provided; the device according to the invention acts on this precise point, and visceral for the wire drawing.
- the device according to the invention thus makes it possible to do away with the “Rumblege” operation, which is expensive and tedious for the manufacturer.
- the film (15) of high compactness and of lamellar structure, repeated several times will play a real anti-wear role; it constitutes the first device objective according to the invention so that the drawing machines can rotate at the speeds provided by the Manufacturers.
- the device according to the invention is particularly intended to create a zone (7) in FIG. 2 of very high pressures on a lubricant extreme pressure, of lamellar structure with strong anisotropy, non-limiting title, thus creating a hydrodynamic regime remarkable.
- the tube (1) acts as pre-die by "preparing" the final work of the die / grader.
- Figure 7 shows a more simplified variant of the Device according to the invention of Figure 1:
- a ring (12) made of non-ferrous or ferrous metal has 2 threaded holes (25), diametrically opposite, each receiving a screw (24) which presses the tube (1) by resting on a notch (9) which has been made in this tube; the tube (1) is conical according to the same criteria mentioned above on the preceding pages; it can be terminated, on the die side, either by a mirror-polished cone, according to the criteria defined above, or by a polished flat part which is applied vigorously against the die (11); at the entrance to this tube, a housing is provided, during its design, to receive a welded, brazed or other core (14) of tungsten carbide or other material; this core will play the role of : guide die and laminating lubricant die to use the principle of FIG.
- the screws are, without limitation, hardened steel of hardness 42/60 HRC having a fine thread for power resistant to high clamping pressures, plating the tube (1) against the die ( 11).
- the thick frusto-conical ring (12) will, as an indication, be made of high-strength bronze or hardened steel of hardness 48/60 HRC to save the duration of the threading.
- the ring (12) can receive 2, (see 3) dies (11) and (23) thus allowing to optimize the reduction of section in a single operation.
- the device according to the invention with its 2 variants, inexpensive, can easily be adapted to all kinds of casting machines, benches and multipasses.
- the device according to the invention is particularly intended for creating a film of residual lubricant, highly compacted, intended to perfect the tribological conditions during the shaping by the customers whose permanent concern is: the wear of their tools.
- the device According to a second variant of the invention, in the case of Wet Wire Drawing, all metals combined, the device will be mounted in a "enclosing" tube represented by FIG.
- the die 11, the non-threaded tube 16, the die 14 are all closed in a tube 19 of great thickness threaded at one end supporting a nut 20 of large caliber;
- the die 14 has a core / wire gap of 0 to a few hundredths of m / m, with a value of 5 to 10 1 / 100 'of m / m, as an indication; taking into account the film of lubricant which is "rolled” on the wire to increase its wettability, the velocities of the kinetic energies of the lubricant "crushed" on the wire by the roller clamp 21 being located just upstream from the "rolling machine”"; the device according to the invention creates a lubricant anti-return system; note that the quantity of this which passes through the air gap is 3 to 4 times greater than the quantity of the wire / flier interface film; this film undergoes a high degree of compacification thanks to the triple congested phenomenon of: exiguity of the air gap of the die (
- the materials of the dies will be of a hardness greater than 1500 HV by targeting 3500/4000 HV as an indication and not limiting; the polishing of the working cone will be 5/100 of Ra approximately and the working angle, commonly called 2 ⁇ will be 6 to 25 ° with an indicative value of 8 °.
- Liquid lubricants or pasty will preferably consist of molecules of large size, strong anisotropy, which have good resistance to strong Shear stresses and mechanical "aging" and thermal: either polymers, long chain copolymers, soaps soluble doped or not, waxes, paraffins, silicones, given without limitation.
- Page 7 gives, without limitation, a range of diameters inside the tubes which can be either cylindrical or preferably conical with an angle of 1.5 ° given as indicative, of unlimited length.
- the device according to the invention Due to its Tribological Objectives of the implementation of Metals in the form of Long Products, by drawing or drawing operation, the device according to the invention with its 2 main targets: Dry Way and Wet Way , all products and all shades combined, is really intended to honor the fundamental objectives of the aforementioned profession, namely: the productivity of the machines by applying the speeds designed by the Manufacturer, the reduction in the "Sector Budget", the Quality of the surface condition of the work hardened products, the Longevity of metallization of capstans and control of the costs of drawing lubricants.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Metal Extraction Processes (AREA)
Abstract
Description
La présente invention concerne un dispositif permettant de tréfiler ou d'étirer des métaux ferreux ou non ferreux sous forme de fil,barre,tube ou de profil non cylindrique en appliquant de très hautes pressions devant le cône de travail de la filière detréfilage (7)de la figure 2,créant ainsi un film anti-usure,grâce à des lubrifiants choisis. Dans l'état actuel de la Technique,soit le Métier du Tréfilage et de l'Etirage des métaux,les conditions tribologiques sont telles que les usines de production sont confrontées à des usures anticipées des filières,donc des budjets importants,à des usures anticipées de la Métallisation, des cabestans,à des consommations exagérées de savon de tréfilage, à la création de défauts de surface sur les fils avec toutes leurs conséquences fâcheuses sur le produit final.Tous ces points conjugées amènent en plus le fabricant à réduire de 30 à 50% la vitesse des machines,ceci,par la force des choses ,avec la perte de productivité consécutive.The present invention relates to a device for drawing or to stretch ferrous or non-ferrous metals as wire, bar, tube or non-cylindrical profile by applying very high pressures in front of the working cone of the wire drawing process (7) of FIG. 2, thus creating an anti-wear film, thanks to selected lubricants. In the current state of the art, Metal drawing and drawing, conditions tribological are such that the factories are faced with anticipated wear and tear on the supply chains, therefore budgets important, to anticipated wear of the Metallization, capstans, to excessive consumption of wire drawing soap, to creation of surface defects on the wires with all their unfortunate consequences for the final product. in addition lead the manufacturer to reduce by 30 to 50% the speed of machines, this, by force of circumstances, with the loss of consecutive productivity.
Le dispositif selon l'invention permet de remédier,quantitativement et qualitativement à tous ces inconvénients inhérents aux Métiers précités.The device according to the invention makes it possible to remedy, quantitatively and qualitatively to all these disadvantages inherent in the Trades supra.
Les dessins annexés illustrent l'invention:
- la figure 1 représente en vue de dessus un dispositif de l'invention. La figure 2 représente en coupe une zone précise de ce dispositif.La figure 3 représente les trois pièces mécaniques de ce dispositif, soit 1,2,3 (en vue de dessus).
- La figure 4 représente la pièce (4) en coupe.
- La figure 5 un tube (16) non fileté.
- La figure 6 représente un montage spécifiquement adapté au Tréfilage VOIE HUMIDE, oü les lubrifiants sont liquides et de faible Viscosité.
- La figure 7 représente un montage simplifié par rapport à celui de la fig 1 et s'applique plus particulièrement aux petites et moyennes filières cylindriques (ou non).
- Figure 1 shows a top view of a device of the invention. Figure 2 shows in section a specific area of this device. Figure 3 shows the three mechanical parts of this device, or 1,2,3 (in top view).
- Figure 4 shows the part (4) in section.
- Figure 5 a tube (16) not threaded.
- FIG. 6 represents an assembly specifically adapted to WET DRAWING, where the lubricants are liquid and of low viscosity.
- Figure 7 shows a simplified assembly compared to that of Fig 1 and applies more particularly to small and medium cylindrical (or not).
Pour la figure 1 :I1 existe 2 sortes de tubes (1) et (16) page 2/3
et 3/3: -les tubes filetés,qui font partie intégrante du dispositif
selon l'invention et les tubes non filetés.For figure 1: There are 2 kinds of tubes (1) and (16)
Filetés ou non,il existe 3 modèles dimensionnels de tubes pour pouvoir couvrir toute la gamme des diamètres de fils à tréfiler.Threaded or not, there are 3 dimensional models of tubes for be able to cover the whole range of wire diameters to be drawn.
Sur la figure 1, la pièce (3) est un carré de 60X60m/m en acier
(XC48) soudé sur les flasques de la couleuse après un alignement
méticuleux.Le tube (1) de forte épaisseur et de haute dureté,est
terminé par un cône poli-miroir (8) qui vient s'emboíter
parfaitement dans le cône poli-miroir en carbure de Tungstène ou
autre matériau de la filière (11).Le serrage en forte pression se
fait par le manchon fileté de (2) qui est muni d'un écrou 6 pans
(10);un méplat (9) permet de maintenir le tube pendant
son placage dans le cône de la filière. Sur la figure 1 :les 2
surfaces (8)ont subi un glaçage type poli-miroir soit un Ra
(rugosité)=5/100 de micron. Les filières cylindriques (11),selon
le modèle ISO Européen,sont logées dans une bague en métal (12) de
forte épaisseur,qui elle-même est introduite dans le porte-filières
(13). Le lubrifiant,graisses ou huiles de forte viscosité ou
lubrifiant en poudre ,coule en (5)par le moyen d'un entonnoir
translucide ajusté au diamètre du trou .La bague (14) permet de
recevoir une filière/guide de diamètre supérieur de 20/100 de m/m à
celui du diamètre du fil(18).Le fil,avec sa vitesse et sa rugosité
entraine du lubrifiant »extrême pression »dans le couloir exigu (6)
jusqu'en (4) et joue ainsi le rôle d'un véritable piston
compresseur. Les pressions en 7,figure 2, sont très élevées
supérieures à 5000 Bars en fonction du lubrifiant choisi,et quand
les valeurs de l'entrefer (6) et la longueur du tube (1) sont
optimisées ; le tableau de la page 5 donne des valeurs à titre non
limitatif.La zone 4 bénéficie d'un écoulement lamellaire,du type
hydrodynamique ce qui a pour conséquence d'infléchir le métal avant
le point d'impact sur la piste en carbure ou autre matériau .In figure 1, the part (3) is a square of 60X60m / m of steel (XC48) welded on the flanges of the casting machine after a meticulous alignment. The tube (1) of great thickness and high hardness, is terminated by a mirror-polished cone (8) which fits perfectly into the mirror-polished cone made of Tungsten carbide or other material of the die (11). The tightening under high pressure is done by the threaded sleeve of (2) which is fitted with a hexagon nut (10); a flat (9) allows the tube to be held during its plating in the cone of the die. In FIG. 1: the 2 surfaces (8) have undergone a mirror-polish type glazing, ie a Ra (roughness) = 5/100 of a micron. The cylindrical dies (11), according to the European ISO model, are housed in a very thick metal ring (12), which itself is introduced into the die holder (13). The lubricant, greases or oils of high viscosity or lubricant powder, flows into (5) by means of a translucent funnel adjusted to the diameter of the hole. The ring (14) allows to receive a die / guide with a diameter greater than 20 / 100 m / m to that of the diameter of the wire (18). The wire, with its speed and its roughness causes lubricant "extreme pressure" in the cramped corridor (6) to (4) and thus plays the role a real compressor piston. The pressures in 7, FIG. 2, are very high, greater than 5000 bars depending on the lubricant chosen, and when the values of the air gap (6) and the length of the tube (1) are optimized; the table on
De ce fait,la « bague de tréfilage » sur le cône en carbure de Tungstène ou autre disparait et avec elle,la détérioration anticipée de la filière ;la « bague de tréfilage » est une auréole sur le cône(8) du carbure de tungstène dûe à l'impact du métal qui arrive à grande vitesse ,souillé en général sur sa peau departicules de métal d'une origine antérieure, et dûe aussi aux fortes pressions auxquelles est sousmise la piste en carbure (8) .Ce phénomène anticipe la mort de la filière;il est connu depuis toujours dans le Métier, mais de vraies solutions n'ont pas été apportées ;le dispositif selon l'invention agit sur ce point précis, et viscéral pour le Tréfileur.Therefore, the "drawing ring" on the tungsten carbide cone or other disappears and with it, the anticipated deterioration of the die, the "drawing ring" is a halo on the cone (8) of tungsten carbide due to the impact of metal arriving at high speed, generally soiled on its skin with metal particles of an earlier origin, and also due to the strong pressures to which the carbide track is subjected (8). This phenomenon anticipates death of the sector; it has always been known in the trade, but real solutions have not been provided; the device according to the invention acts on this precise point, and visceral for the wire drawing.
Le dispositif selon l'invention permet ainsi de supprimerl'opération "Retapage » ,chère et fastidieuse pour le fabricant. Le film (15) de forte compacité et de structure lamellaire,répété plusieurs fois va jouer un véritable rôle Anti-usure ; il constitue l'objectif premier dispositif selon l'invention afin que les tréfileuses puissent tourner aux vitesses prévues par les Constructeurs.The device according to the invention thus makes it possible to do away with the “Retapage” operation, which is expensive and tedious for the manufacturer. The film (15) of high compactness and of lamellar structure, repeated several times will play a real anti-wear role; it constitutes the first device objective according to the invention so that the drawing machines can rotate at the speeds provided by the Manufacturers.
A titre d'exemple non limitatif,la cônicité intérieure des 2 types de tubes (1) et (16) fera encore augmenter les pressions de"compactage" du film de lubrifiant choisi;en particulier en (7) figure 2. la page 6 donne les caractéristiques des tubes filetés.La page 5 donne les caractéristiques des tubes non filetés,appelés aussi tubes flottants.Sur les multipasses ayant de 6 à 12 passes et plus, le dispositif selon l'invention est utilisé sur 50% des premières passes ; sur les autres 50% de la machine,le fabricant pourra utiliser les tubes flottants(non filetés). Il décidera lui-même de leur nombre sur la multipasse.Selon une variante de la figure 3, l'angle (17)sera de 0°(tube cylindrique) à 12, sachant que l'angle recommandé du dispositif selon l'invention est de 1,5°.Le dispositif selon l'invention décrit une série de tubes (1) filetés qui sont donnés par la page 6;La page 5 donne la gamme des tubes non filetés (flottants). La page 7 donne les indications de montage des tubes en fonction des diamêtres à tréfiler avec les 2 formules (a)et(b) de calcul de l'incrément diamètre intérieur (Φi)) des tubes. Les pages 5 et 6 donnent:une tranche de Dureté Rockwell C (HRC) de 58 à64 pour une nuance 100C6 à titre indicatif.L'échelle de dureté pourra aller de 58 HRC(dureté Rockwell C) à 3500 HV(dureté Vickers) en passant par des carbures métalliques ou des céramiques industrielles,tubes de forte épaisseur pour résister à l'éclatement.Les lubrifiants seront, selon le type de produit à écrouire:
- des graisses au graphite,ou au bisulfure de molybdène,ou avec des poudres métalliques, ou avec des ajouts d'alliages métalliques ,ou avec des polymères type anti-friction ou autres: Téflon,etc .... ).
- des graisses sans les additifs précités;à titre non limitatif, les Extrême-pression et autres. Ces 2 types de graisses coulantes auront une viscosité élevée,à titre non limitatif,de 200 à 15000 Centistokes, en visant la fourchette 800 à 3000 Centistokes à l'ambiante ( 20° environ) préférenciellement, ou encore,des savons nous,coulants,de viscosité également 200 à 15000Cst chargés en corps gras connus pour leurs propriétés extrême-pression et à utiliser quand les produits finis nécessitent un lavage à l'eau;cité à titre d'exemple non limitatif.Les filières seront en carbure de Tungstène de type"micro-grains",réalisées selon le procédé HIP(haute pression isostatique), fabriquées par les grands carburiers actuels.A titre ion limitatif,les filières utilisées avec le dispositif selon l'invention pourront être constituées par des céramiques industrielles de très haute dureté,par exemple:les cermets.,les nitrures de Silicium ,les nitrures de Bore,carbures de Bore,les Diamants tous type etc ....
- greases with graphite, or with molybdenum disulphide, or with metallic powders, or with additions of metallic alloys, or with anti-friction type polymers or others: Teflon, etc.).
- greases without the aforementioned additives; non-limiting, Extreme-pressure and others. These 2 types of flowing fats will have a high viscosity, without limitation, from 200 to 15,000 Centistokes, targeting the range 800 to 3000 Centistokes at room temperature (approximately 20 °), or even soaps, soaps, also of viscosity 200 to 15000Cst loaded with fatty substances known for their extreme-pressure properties and to be used when the finished products require washing with water; cited as a non-limiting example. The dies will be made of Tungsten carbide type "micro-grains", produced according to the HIP process (high isostatic pressure), manufactured by current large carburetors. By way of limitation, the dies used with the device according to the invention may be constituted by industrial ceramics of very high hardness , for example: cermets., silicon nitrides, boron nitrides, boron carbides, diamonds of all types, etc.
Le dispositif selon l'invention est particulièrement destiné à créer une zone (7)figure 2 de très hautes pressions sur un lubrifiant extrême-pression,de structure lamellaire de forte anisotropie, à titre non limitatif, créant ainsi un régime hydrodynamique remarquable.Dans ces conditions optimales,le tube (1) fait office de pré-filière en "préparant" le travail final de la filière/calibreuse. La figure 7 représente une variante plus simplifiée du Dispositif selon l'invention de la Figure 1 :The device according to the invention is particularly intended to create a zone (7) in FIG. 2 of very high pressures on a lubricant extreme pressure, of lamellar structure with strong anisotropy, non-limiting title, thus creating a hydrodynamic regime remarkable.In these optimal conditions, the tube (1) acts as pre-die by "preparing" the final work of the die / grader. Figure 7 shows a more simplified variant of the Device according to the invention of Figure 1:
Une bague(12)en métal non ferreux ou ferreux possède 2 trous
filetés(25),diamêtralement opposés,recevant chacun une vis(24)qui
vient plaquer le tube(1)en prenant appui sur une échancrure(9)qui a
été pratiqué dans ce tube ; le tube(1)est cônique selon les mêmes
critères précités aux pages précédentes ;il peut être terminé,côté
filière,soit par un cône poli-miroir,selon les critères définis
précédemment,soit par une partie plane polie venant s'appliquer
énergiquement contre la filière(11) ;à l'entrée de ce tube, un
logement est prévu ,lors de sa conception,pour recevoir un noyau(14)
soudé,brasé ou autre en carbure de Tungstène ou autre matériau ;ce
noyau jouera le rôle de : filière-guide et filière lamineuse de
lubrifiant pour reprendre le principe de la figure 6,déjà exposé.
Les vis ,au nombre de deux ou plus,sont, à titre non limitatif en
Acier trempé de dureté 42/60 HRC possédant un filetage fin pour
Pouvoir résistant à de fortes pressions de serrage,de placage du
Tube (1)contre la filière (11). La bague (12) tronc-cônique, de forte
épaisseur,sera,à titre indicatif,en bronze haute résistance ou en
acier trempé de dureté 48/60 HRC pour sauvegarder la durée du
filetage. Quand l'écrouissage prévu est important e>25%, la bague
(12)peut recevoir 2,(voir 3) filières (11)et(23)permettant ainsi
d'optimiser la réduction de section en une seule opération.Par
métal à écrouire,une Courbe préalable de Mesures de Contraintes de
Tréfilage est à établir ;(But :connaítre le rapport entre l'Effort
De tréfilage nécessaire et la résistance du fil, pour éviter sa
Rupture en phase de fabrication).
la bague(12)équipée de son tube 1 ,de sa ou ses filières 11+23,de
ses vis 24 est enfilé dans son porte-filière 13,généralement
refroidi à l'eau ,par système water-jacket.
les critères/Matériau et dimensionnels sur :le tube(1),la bague
porteuse 12,les vis 24,la ou les filières 11+23 sont donnés à titre
non limitatif ; les tableaux des pages 5,6,7,8 donnent néanmoins
des éléments conduisant directement vers une optimisation de la Mise
en OEuvre des Métaux et autres matériaux.A ring (12) made of non-ferrous or ferrous metal has 2 threaded holes (25), diametrically opposite, each receiving a screw (24) which presses the tube (1) by resting on a notch (9) which has been made in this tube; the tube (1) is conical according to the same criteria mentioned above on the preceding pages; it can be terminated, on the die side, either by a mirror-polished cone, according to the criteria defined above, or by a polished flat part which is applied vigorously against the die (11); at the entrance to this tube, a housing is provided, during its design, to receive a welded, brazed or other core (14) of tungsten carbide or other material; this core will play the role of : guide die and laminating lubricant die to use the principle of FIG. 6, already explained. The screws, two or more in number, are, without limitation, hardened steel of hardness 42/60 HRC having a fine thread for power resistant to high clamping pressures, plating the tube (1) against the die ( 11). The thick frusto-conical ring (12) will, as an indication, be made of high-strength bronze or hardened steel of hardness 48/60 HRC to save the duration of the threading. When the work hardening is important e> 25%, the ring (12) can receive 2, (see 3) dies (11) and (23) thus allowing to optimize the reduction of section in a single operation. to work, a preliminary Curve of Wire Drawing Constraints is to be established; (Purpose: to know the relationship between the required Wire Drawing Effort and the resistance of the wire, to avoid its Breakage during the manufacturing phase).
the ring (12) equipped with its
Le dispositif selon l'invention avec ses 2 variantes,peu onéreux,
peut s'adapter facilement sur toutes les sortes de couleuses,bancs
et multipasses.
le dispositif selon l'invention est particulièrement destiné à crée
un film de lubrifiant résiduel,fortement compacté,destiné à parfaire
les conditions tribologiques lors de la mise en forme par les
clients dont le souci permanent est: l'usure de leurs outillages.
Selon une deuxième variante de l'invention,dans le cas du
Tréfilage en Voie Humide, tous métaux confondus,le dispositif sera
monté dans un tube "enfermant" représenté par la figure 4:
la filière 11,le tube non fileté 16,la filière 14 sont tous fermés
dans un tube 19 de forte épaisseur fileté à une extrémité supportant
un écrou 20 de gros calibre;la filière 14 possède un entrefer
noyau/fil de 0 à quelques centièmes de m/m,avec une valeur de 5 à 10
1/100'de m/m,à titre indicatif; compte tenu du film de lubrifiant
qui est "roulé" sur le fil pour augmenter sa mouillabilité, les
vitesses des énergies cinétiques du lubrifiant "écrasé" sur le fil
par la pince à rouleaux 21 se trouvant juste à l'amont de la filière
"lamineuse" ; le dispositif selon l'invention crée un système
Anti-Retour de lubrifiant ; à noter que la quantité de celui-ci qui
passe par l'entrefer est 3 à 4 fois supérieure à la quantité du film
d'interface fil/flière;ce film subit un haut degré de compacification
grâce au triple phénomène congugé de: l'exiguité de
l'entrefer de la filière (14),de l'effet de couloir du tube de
longueur et d'entretoise non limitées et du phénomène de "coin" du
couloir cônique d'un angle 17 de 1,7° donné à titre non limitatif.
Les deux joints cuivre 22 assure l'étanchéité de l'ensemble.The device according to the invention with its 2 variants, inexpensive, can easily be adapted to all kinds of casting machines, benches and multipasses.
the device according to the invention is particularly intended for creating a film of residual lubricant, highly compacted, intended to perfect the tribological conditions during the shaping by the customers whose permanent concern is: the wear of their tools. According to a second variant of the invention, in the case of Wet Wire Drawing, all metals combined, the device will be mounted in a "enclosing" tube represented by FIG. 4: the
Dans le cas du Tréfilage en Voie H,et surtout pour les métaux très durs (+ de 2000 MPa),les matériaux des filières seront d'une dureté supérieures à 1500 HV en visant 3500/4000 HV à titre indicatif et non limitatif ; le polissage du cône de travail sera de 5/100 de Ra environ et l'angle de travail,communément appelé 2α sera de 6 à 25° avec une valeur,à titre indicatif,de 8°.Les lubrifiants liquides ou pâteux seront constitués de préférence,par des molécules de grande taille,de forte anisotropie,qui ont une bonne tenue aux fortes Contraintes de Cisaillement et au "vieillissement" mécanique et thermique: soit des polymères,copolymères à longue chaine, des savons solubles dopés ou non,des cires,des paraffines,des silicones,donnés à titre non limitatif. Pour augmenter la compressibilité du lubrifiant,celui-ci devra être dépourvu de micro-bulles d'air dans sa masse,en citant à titre d'exemple non limitatif, les Huiles de transmission de puissance, à titre non limitatif. La conjugaison optimisée des Critères précités permet d'avoir en (7) de très hautes pressions,d'infléchir le métal en 4 ,et,par conséquent,l'obtention d'un Régime hydrodynamique à faciès lamellaire ,par suite du bon lubrifiant précité, et la minimisation considérable du "point d'impact" du métal arrivant à grande vitesse;ces conditions réunies font disparâitre la présence de la "Bague de Tréfilage" qui existe même sur les matériaux trés durs,les diamants,en t'autre; en conséquence,les filières "s'usent",mais sans s'abimer ;le Roulement Interne en Atelier des filières devient enfin possible et avec conséquence pour le Producteur du métal impliqué,la suppression de l'opération "Retapage"qui est chère et fastidieuse;sur les Multipasses,seules les filières du "Fini" sont neuves ; les autres dans le corps de la machine proviennent du système RITA :Roulement Interne sur le Tas ,des filières, cité précédemment.In the case of H-wire Drawing, and especially for very heavy metals hard (more than 2000 MPa), the materials of the dies will be of a hardness greater than 1500 HV by targeting 3500/4000 HV as an indication and not limiting; the polishing of the working cone will be 5/100 of Ra approximately and the working angle, commonly called 2α will be 6 to 25 ° with an indicative value of 8 °. Liquid lubricants or pasty will preferably consist of molecules of large size, strong anisotropy, which have good resistance to strong Shear stresses and mechanical "aging" and thermal: either polymers, long chain copolymers, soaps soluble doped or not, waxes, paraffins, silicones, given without limitation. To increase the compressibility of the lubricant, it must be free of micro air bubbles in its mass, by quoting by way of nonlimiting example, the Oils of power transmission, without limitation. The conjugation optimized from the above-mentioned Criteria makes it possible to have in (7) very high pressures, to bend the metal in 4, and, therefore, obtaining of a hydrodynamic regime with lamellar facies, as a result of the good aforementioned lubricant, and the considerable minimization of the "point impact "of metal arriving at high speed; these conditions met remove the presence of the "Wire Drawing Ring" that exists even on very hard materials, diamonds, in others; in Consequently, the dies "wear out", but without being damaged; Intern in the Supply Chain Workshop finally becomes possible and with consequence for the Producer of the metal involved, the removal of the expensive and tedious "Retapage" operation; Multipasses, only the "Finished" sectors are new; others in the machine body come from the RITA system: Bearing Internal on the Heap, of the sectors mentioned above.
La page 7 donne à titre non limitatif une gamme des diamètres
intérieurs des tubes qui peuvent être,soit cylindriques,ou
préférenciellement coniques d'un angle de 1,5° donné à titre
indicatif,de longueur non limitée.
De part ses Objectifs de nature Tribologique de la mise en oeuvre des Métaux sous forme de Produits Longs, par opération de Tréfilage ou Etirage, le dispositif selon l'invention avec ses 2 grandes cibles :Voie Sèche et Voie Humide,tous produits et toutes nuances confondues,est vraiment destiné à honorer les objectifs fondamentaux du Métier précité,soit:la productivité des machines en appliquant les vitesses conçues par le Constructeur,la diminution du "Budjet Filières",la Qualité de l'état de surface des produits écrouis, la Longévité de la métallisation des Cabestans et la Maítrise des Coûts des lubrifiants de tréfilage. Due to its Tribological Objectives of the implementation of Metals in the form of Long Products, by drawing or drawing operation, the device according to the invention with its 2 main targets: Dry Way and Wet Way , all products and all shades combined, is really intended to honor the fundamental objectives of the aforementioned profession, namely: the productivity of the machines by applying the speeds designed by the Manufacturer, the reduction in the "Sector Budget", the Quality of the surface condition of the work hardened products, the Longevity of metallization of capstans and control of the costs of drawing lubricants.
Soit,machine immergée ou semi-émergée ou par barbotage. Savons liquides ou pâteux/graisseux. Tableau des dimensions de tubes pour 2 types de Filières Diamant cylindriques: 42 X 30 et 28 X 16.(diamêtre et épaisseur). en m/m. donné à titre d'exemple et non limitatif.
- Gamme de fils tréfilés
- angle (α) : angle intérieur du tube (cônique).
Nota: Dans la phase de Pré-Qualification du dispositif selon l'invention,il est recommandé,à titre de comparaison,de commencer avec des tubes à intérieur cylindriques (angle =O). - Nuance des tubes/manchon : Inox austénitiques (anti-corrosion).
- Range of drawn wires
- angle (α): internal angle of the tube (conical).
Note: In the Pre-Qualification phase of the device according to the invention, it is recommended, for comparison, to start with tubes with cylindrical interior (angle = O). - Grade of tubes / sleeve: Austenitic stainless steel (anti-corrosion).
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02356158A EP1388379A1 (en) | 2002-08-08 | 2002-08-08 | Device for drawing or stretching (wires, bars, tubes) with a quasi zero wear of the die and the reaching of optimal tribological conditions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02356158A EP1388379A1 (en) | 2002-08-08 | 2002-08-08 | Device for drawing or stretching (wires, bars, tubes) with a quasi zero wear of the die and the reaching of optimal tribological conditions |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1388379A1 true EP1388379A1 (en) | 2004-02-11 |
Family
ID=30129258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02356158A Withdrawn EP1388379A1 (en) | 2002-08-08 | 2002-08-08 | Device for drawing or stretching (wires, bars, tubes) with a quasi zero wear of the die and the reaching of optimal tribological conditions |
Country Status (1)
Country | Link |
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EP (1) | EP1388379A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2871078A1 (en) * | 2004-06-04 | 2005-12-09 | Roger Marcel Sabau | Ferrous and non-ferrous wires, rods and tubes surface defects repairing device for use in e.g. wire drawing machine, has die heads fitted in ring engaged in diestock where contact surfaces between ring and diestock has firm polishing |
CN103464493A (en) * | 2013-09-15 | 2013-12-25 | 无锡平盛科技有限公司 | Final assembly structure of water box drawbench mould box |
IT201800002835A1 (en) * | 2018-02-20 | 2019-08-20 | Ravarini Castoldi & C S R L | LUBRICATION METHOD FOR DRAWING AND LUBRICANT FOR THIS METHOD |
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FR2143193A1 (en) * | 1971-06-24 | 1973-02-02 | Benteler Werke Ag | |
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EP0341688A1 (en) * | 1988-05-10 | 1989-11-15 | Hitachi, Ltd. | A method for manufacturing electrically conductive substances with a lubricant composition |
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FR2820660A1 (en) * | 2001-02-14 | 2002-08-16 | Roger Marcel Sabau | Apparatus for metal drawing without significant wear of the die comprises a threaded tube screwed into threaded sleeve that is inserted into a large rectangular block |
FR2821769A1 (en) * | 2001-03-09 | 2002-09-13 | Roger Marcel Sabau | Device with two variants allowing the drawing of metal wires, bars and tubes optimising the degree of drawing to a maximum without breaching the well-being of the product |
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2002
- 2002-08-08 EP EP02356158A patent/EP1388379A1/en not_active Withdrawn
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2871078A1 (en) * | 2004-06-04 | 2005-12-09 | Roger Marcel Sabau | Ferrous and non-ferrous wires, rods and tubes surface defects repairing device for use in e.g. wire drawing machine, has die heads fitted in ring engaged in diestock where contact surfaces between ring and diestock has firm polishing |
CN103464493A (en) * | 2013-09-15 | 2013-12-25 | 无锡平盛科技有限公司 | Final assembly structure of water box drawbench mould box |
CN103464493B (en) * | 2013-09-15 | 2015-07-29 | 无锡平盛科技有限公司 | The total assembling structure of water box drawbench mould box |
IT201800002835A1 (en) * | 2018-02-20 | 2019-08-20 | Ravarini Castoldi & C S R L | LUBRICATION METHOD FOR DRAWING AND LUBRICANT FOR THIS METHOD |
WO2019162796A1 (en) * | 2018-02-20 | 2019-08-29 | Ravarini Castoldi & C. S.R.L. | Lubricating method for drawing and lubricant for said method |
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