EP0069616A1 - Device for cooling steel wire spirals in the rolling heat - Google Patents
Device for cooling steel wire spirals in the rolling heat Download PDFInfo
- Publication number
- EP0069616A1 EP0069616A1 EP82401083A EP82401083A EP0069616A1 EP 0069616 A1 EP0069616 A1 EP 0069616A1 EP 82401083 A EP82401083 A EP 82401083A EP 82401083 A EP82401083 A EP 82401083A EP 0069616 A1 EP0069616 A1 EP 0069616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- upper wall
- wing
- turns
- box
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 238000005096 rolling process Methods 0.000 title 1
- 238000005098 hot rolling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 210000002816 gill Anatomy 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 description 4
- 241000826860 Trapezium Species 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
-
- 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
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
- B21C47/262—Treatment of a wire, while in the form of overlapping non-concentric rings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
Definitions
- the present invention relates to the cooling of turns of steel wires in the hot rolling mill.
- Certain coils cooling devices currently used include a conveyor formed by a series of blowing boxes above which the coils move in spread form and are cooled by blowing air through openings, or vents, present on the boxes. in such a way that the transformation ⁇ ⁇ a of the steel occurs at a determined speed.
- the object of the present invention is precisely to solve the problem described above. More particularly, the object of the invention is to provide a device making it possible to improve the efficiency and the homogeneity of the cooling of turns of steel wires.
- the subject of the invention is a device for the accelerated cooling of turns of steel wires in the hot rolling, of the type of those which include a conveyor formed by a series of blowing boxes whose upper wall has openings lateral and central, known as "gills", by which air is blown on the turns of wires which move above the upper wall of the boxes, the downstream part relative to the direction of movement of the turns of each of said gills being provided with a plate, called “wing”, which is inclined towards the inside of the box and towards the upstream part of the hearing.
- a conveyor formed by a series of blowing boxes whose upper wall has openings lateral and central, known as "gills”, by which air is blown on the turns of wires which move above the upper wall of the boxes, the downstream part relative to the direction of movement of the turns of each of said gills being provided with a plate, called “wing”, which is inclined towards the inside of the box and towards the upstream part of the hearing.
- the device is characterized in that, at least for some of the gills, the angle of inclination of the wing relative to the upper wall of the box is less than 20 ° and said wing is extended by a plate, called "fin", which is parallel to the upper wall of the box.
- the wing is a rectangular plate whose sides are provided with vertical edges.
- the wing is a plate which has the shape of a trapezoid whose large base corresponds to the downstream part of the louver and whose sides, provided with vertical edges, an angle of 60 ° to 85 ° with the downstream part of the hearing.
- the wing is a plate which has the shape of a rectangular trapezium whose large base corresponds to the downstream part of the gutter and whose sides are provided with vertical edges, the side located towards the central part of the box making an angle of 60 ° to 85 ° with the downstream part of the hearing.
- a water nozzle is placed at the outlet of the passage delimited between the fin and the upper wall of the box, said nozzle being oriented so that the water jet is parallel to the wing.
- water can be injected in the form of finely divided droplets or in the form of vapor.
- the configuration of the vents of the device according to the invention allows more uniform continuous cooling.
- the blown air circulates at high speed along the bed of the turns of the wires. It should be noted that the air blown by the passage delimited between the upper wall of the boxes and the fin allows a turbulent flow plated at its outlet from the hearing against the upper wall, which allows very effective cooling.
- vents according to the invention are only necessary in the cooling zones where there is a risk of recalescence of the steel wires.
- the cooling device is located after the finishing cages and a winding head (not shown in the figures) placed in series.
- This device constitutes a conveyor comprising a series of blower boxes 1, called “ventilation”, the upper wall 2 of which has openings called “openings”, namely, two lateral series of openings 3 and 4 and a central series of openings 5.
- the turns of steel wires 6 move in direction A (indicated by the arrow) by means of conveyor chains 7 and 7 ′ which are mounted above the upper wall 2 of the boxes.
- each box 1 is provided with a fan 8 in order to blow air through the openings 3, 4 and 5 on the turns 6.
- each box 1 comprises several openings 3, 4 and 5 on its upper wall 2, although FIG. 2 only shows a hole 5 to simplify the explanations.
- the plate 9 has the shape of a trapezoid for the central vents 5, and the shape of a rectangular trapezium for the lateral vents 3 and 4.
- This preferred configuration allows a better cooling of the portions of turns 6 at the level of the chains 7 and 7 ′: in fact, the air arrives through the passage 11, delimited between the fin 10 and the upper wall 2 of the box; it then circulates on the inclined plate 9 and, thanks to the particular geometry of this plate 9, is oriented towards the chains 7 and 7 '.
- the angle of inclination a of the wing 9 is less than 20 ° and preferably about 10 °.
- the plate 10 of rectangular shape called "fin", which is parallel to the upper wall 2 so as to delimit the passage of the blown air 11, can be fixed to the wing 9 by suitable means, for example by welding.
- the nozzle 12 is placed at the outlet of the passage 11, that is to say in the vicinity of the end of the fin 10 adjacent to the wing 9.
- the nozzle 12 is connected to a tube 13 which passes through the fin and which is itself connected to a water pipe 14.
- the nozzle 12 is preferably of the flat jet type. It is oriented so that the water jet is parallel to wing 9.
- Water is preferably injected in the form of steam.
- the injected vapor is cooled by the blown air and transformed into a very fine mist, which is preferable for obtaining rapid and homogeneous cooling of the turns of the wires 6.
- FIG. 2 shows a compact water-compressed air ramp 15 placed above the bed of the turns of wires 6.
- the compact ramp 15 is supplied with water by a tube 16 and with air by a tube 17. can use this compact boom 15 independently or simultaneously with the nozzle 12.
- the steel wires are cooled with water to a temperature of 650 to 800 ° C. and put into turns by means of a head (not shown in the figures) for the depositing turns on the conveyor chains 7 and 7 '.
- the spread turns of wire 6 thus formed are then moved by chains 7 and 7 'a short distance above the upper walls 2 of the boxes 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
La présente invention concerne le refroidissement de spires de fils en acier dans la chaude de laminage.The present invention relates to the cooling of turns of steel wires in the hot rolling mill.
Pour donner aux fils en acier des caractéristiques déterminées, il est connu de leur faire subir un traitement thermique, dit patentage, directement dans la chaude de laminage. De façon plus précise, ce traitement consiste à refroidir les fils, à la sortie des cages finisseuses, par arrosage d'eau à partir d'une température d'environ 1000°C jusqu'à une température de 650 à 800°C. On met ensuite les fils sous forme de spires qu'on envoie alors à un dispositif de refroidissement.To give steel wires specific characteristics, it is known to subject them to a heat treatment, known as patenting, directly in the hot rolling mill. More precisely, this treatment consists in cooling the wires, at the outlet of the finishing cages, by sprinkling water from a temperature of approximately 1000 ° C. to a temperature of 650 to 800 ° C. The wires are then put in the form of turns which are then sent to a cooling device.
Certains dispositifs de refroidissement de spires utilisés actuellement comportent un convoyeur formé par une série de caissons soufflants au-dessus desquels les spires se déplacent sous forme étalée et sont refroidies par soufflage d'air au travers d'ouvertures, ou ouïes, présentes sur les caissons de façon à ce que la transformation γ → a de l'acier se produise à une vitesse déterminée.Certain coils cooling devices currently used include a conveyor formed by a series of blowing boxes above which the coils move in spread form and are cooled by blowing air through openings, or vents, present on the boxes. in such a way that the transformation γ → a of the steel occurs at a determined speed.
Toutefois, lors du refroidissement des spires dans des dispositifs de ce type, il peut se produire une forte recalescence de l'acier due à l'enthalpie de la transformation γ → a . Ce phénomène ralentit la vitesse de refroidissement et par conséquent diminue la résistance mécanique des fils. Afin de résoudre ce problème, on a proposé d'injecter de l'eau pulvérisée sur les spires de fils au cours du refroidissement. Mais les gouttes d'eau formées produisent un refroidissement non homogène des spires, ce qui nuit à leurs propriétés mécaniques.However, during the cooling of the turns in devices of this type, there can be a strong recalescence of the steel due to the enthalpy of the transformation γ → a. This phenomenon slows down the cooling rate and consequently decreases the mechanical resistance of the wires. In order to solve this problem, it has been proposed to inject water spray on the turns of the wires during cooling. However, the drops of water formed produce uneven cooling of the turns, which affects their mechanical properties.
Le but de la présente invention est justement de résoudre le problème décrit ci-dessus. Plus particulièrement, le but de l'invention est de fournir un dispositif permettant d'améliorer l'efficacité et l'homogénéité du refroidissement de spires de fils en acier.The object of the present invention is precisely to solve the problem described above. More particularly, the object of the invention is to provide a device making it possible to improve the efficiency and the homogeneity of the cooling of turns of steel wires.
A cet effet, l'invention a pour objet un dispositif pour le refroidissement accéléré de spires de fils en acier dans la chaude de laminage, du type de ceux qui comportent un convoyeur formé par une série de caissons soufflants dont la paroi supérieure présente des ouvertures latérales et centrales, dites "ouîes", par lesquelles de l'air est soufflé sur les spires de fils qui se déplacent au-dessus de la paroi supérieure des caissons, la partie aval par rapport au sens de déplacement des spires de chacune desdites ouïes étant munie d'une plaque, dit "aile", qui est inclinée vers l'intérieur du caisson et vers la partie amont de l'ouïe. Selon l'invention, le dispositif est caractérisé en ce que, au moins pour certaines des ouïes, l'angle d'inclinaison de l'aile par rapport à la paroi supérieure du caisson est inférieur à 20° et ladite aile est prolongée par une plaque, dite "aileron", qui est parallèle à la paroi supérieure du caisson.To this end, the subject of the invention is a device for the accelerated cooling of turns of steel wires in the hot rolling, of the type of those which include a conveyor formed by a series of blowing boxes whose upper wall has openings lateral and central, known as "gills", by which air is blown on the turns of wires which move above the upper wall of the boxes, the downstream part relative to the direction of movement of the turns of each of said gills being provided with a plate, called "wing", which is inclined towards the inside of the box and towards the upstream part of the hearing. According to the invention, the device is characterized in that, at least for some of the gills, the angle of inclination of the wing relative to the upper wall of the box is less than 20 ° and said wing is extended by a plate, called "fin", which is parallel to the upper wall of the box.
Selon un mode de réalisation, l'aile est une plaque rectangulaire dont les côtés sont munis de rebords verticaux.According to one embodiment, the wing is a rectangular plate whose sides are provided with vertical edges.
Selon une variante de réalisation préférée, pour les ouïes centrales, l'aile est une plaque qui a la forme d'un trapèze dont la grande base correspond à la partie aval de l'ouïe et dont les côtés, munis de rebords verticaux, font un angle de 60° à 85° avec la partie aval de l'ouïe. Pour les ouïes latérales, l'aile est une plaque qui a la forme d'un trapèze rectangle dont la grande base correspond à la partie aval de l'ouïe et dont les côtés sont munis de rebords verticaux, le côté situé vers la partie centrale du caisson faisant un angle de 60° à 85° avec la partie aval de l'ouïe.According to a preferred embodiment, for the central louvers, the wing is a plate which has the shape of a trapezoid whose large base corresponds to the downstream part of the louver and whose sides, provided with vertical edges, an angle of 60 ° to 85 ° with the downstream part of the hearing. For the lateral gills, the wing is a plate which has the shape of a rectangular trapezium whose large base corresponds to the downstream part of the gutter and whose sides are provided with vertical edges, the side located towards the central part of the box making an angle of 60 ° to 85 ° with the downstream part of the hearing.
Selon un mode de réalisation de l'invention, un gicleur d'eau est placé à la sortie du passage délimité entre l'aileron et la paroi supérieure du caisson, ledit gicleur étant orienté de façon à ce que le jet d'eau soit parallèle à l'aile.According to one embodiment of the invention, a water nozzle is placed at the outlet of the passage delimited between the fin and the upper wall of the box, said nozzle being oriented so that the water jet is parallel to the wing.
Selon l'invention, l'eau peut être injectée sous forme de gouttelettes finement divisées ou sous forme de vapeur.According to the invention, water can be injected in the form of finely divided droplets or in the form of vapor.
Comme on pourra le comprendre, la configuration des ouïes du dispositif selon l'invention permet un refroidissement continu plus homogène. En effet, l'air soufflé circule à grande vitesse le long du lit des spires de fils. Il est à noter que l'air soufflé par le passage délimité entre la paroi supérieure des caissons et l'aileron permet un écoulement turbulant plaqué à sa sortie de l'ouïe contre la paroi supérieure, ce qui permet un refroidissement très efficace.As can be understood, the configuration of the vents of the device according to the invention allows more uniform continuous cooling. In fact, the blown air circulates at high speed along the bed of the turns of the wires. It should be noted that the air blown by the passage delimited between the upper wall of the boxes and the fin allows a turbulent flow plated at its outlet from the hearing against the upper wall, which allows very effective cooling.
Lorsqu'on injecte de l'eau pulvérisée par le gicleur qui est placé dans l'ouïe, cette eau se mélange à l'air soufflé, ce qui la transforme en brouillard. L'injection d'eau sous forme de vapeur conduit à un brouillard plus fin et permet donc un refroidissement plus homogène des spires de fils.When we inject water sprayed by the nozzle which is placed in the hearing, this water mixes with the blown air, which transforms it into mist. The injection of water in the form of vapor leads to a finer mist and therefore allows more homogeneous cooling of the turns of the wires.
La configuration des ouïes conforme à l'invention n'est nécessaire que dans les zones de refroidissement où il y a risque de recalescence des fils en acier.The configuration of the vents according to the invention is only necessary in the cooling zones where there is a risk of recalescence of the steel wires.
L'invention sera bien comprise et d'autres aspects et avantages ressortiront plus clairement au vu de la description qui suit, donnée à titre purement illustratif et en référence aux dessins annexés dans lesquels :
- - la figure 1 représente une vue de dessus d'une partie du dispositif pour le refroidissement de spires de fils ;
- - la figure 2 représente une vue en coupe, selon la ligne Y - Y de la figure 1, d'un mode de réalisation d'une ouïe selon l'invention.
- - Figure 1 shows a top view of a part of the device for cooling son turns;
- - Figure 2 shows a sectional view, along the line Y - Y of Figure 1, of an embodiment of a hearing according to the invention.
Comme on le sait, le dispositif de refroidissement se situe après les cages finisseuses et une tête de mise en spires (non représentées sur les figures) placées en série. Ce dispositif constitue un convoyeur comportant une série de caissons soufflants 1, dits de "ventilation" dont la paroi supérieure 2 présente des ouvertures dites "ouïes", à savoir, deux séries latérales d'ouïes 3 et 4 et une série centrale d'ouïes 5. Les spires de fils en acier 6 se déplacent dans le sens A (indiqué par la flèche) grâce à des chaînes de convoyage 7 et 7' qui sont montées au-dessus de la paroi supérieure 2 des caissons. Comme représenté sur la figure 2, chaque caisson 1 est muni d'un ventilateur 8 afin de souffler l'air par les ouïes 3, 4 et 5 sur les spires 6. Il va de soi que chaque caisson 1 comporte plusieurs ouïes 3, 4 et 5 sur sa paroi supérieure 2, bien que la figure 2 ne montre qu'une ouïe 5 pour simplifier les explications.As is known, the cooling device is located after the finishing cages and a winding head (not shown in the figures) placed in series. This device constitutes a conveyor comprising a series of blower boxes 1, called "ventilation", the
Dans le monde de réalisation représenté sur les figures 1 et 2, la plaque 9 a la forme d'un trapèze pour les ouïes centrales 5, et la forme d'un trapèze rectangle pour les ouïes latérales 3 et 4. Cette configuration préférée permet un meilleur refroidissement des portions de spires 6 au niveau des chaînes 7 et 7' : en effet, l'air arrive par le passage 11, délimité entre l'aileron 10 et la paroi supérieure 2 du caisson ; il circule alors sur la plaque inclinée 9 et, grâce à la géométrie particulière de cette plaque 9, est orienté vers les chaînes 7 et 7'.In the embodiment shown in FIGS. 1 and 2, the
Dans le dispositif selon l'invention, l'angle d'inclinaison a de l'aile 9 est inférieur à 20° et, de préférence, d'environ 10°. La plaque 10 de forme rectangulaire dite "aileron", qui est parallèle à la paroi supérieure 2 de façon à délimiter le passage de l'air soufflé 11, peut être fixée à l'aile 9 par des moyens appropriés, par exemple par soudage.In the device according to the invention, the angle of inclination a of the
Le gicleur 12 est placé à la sortie du passage 11, c'est-à-dire au voisinage de l'extrémité de l'aileron 10 adjacente à l'aile 9. Le gicleur 12 est connecté à un tube 13 qui traverse l'aileron et qui est lui-même connecté à une canalisation d'eau 14. Le gicleur 12 est, de préférence, du type à jet plat. Il est orienté de façon à ce que le jet d'eau soit parallèle à l'aile 9.The
L'eau est, de préférence, injectée sous iorme de vapeur. Dans ce cas, la vapeur injectée est refroidie par l'air soufflé et transformée en un brouillard très fin, ce qui est préférable pour obtenir un refroidissement rapide et homogène des spires de fils 6.Water is preferably injected in the form of steam. In this case, the injected vapor is cooled by the blown air and transformed into a very fine mist, which is preferable for obtaining rapid and homogeneous cooling of the turns of the wires 6.
On a représenté, sur la figure 2, une rampe compacte eau-air comprimé 15 placée au-dessus du lit des spires de fils 6. La rampe compacte 15 est alimentée en eau par un tube 16 et en air par un tube 17. On peut utiliser cette rampe compacte 15 indépendamment ou simultanément avec le gicleur 12.FIG. 2 shows a compact water-compressed
Le fonctionnement du dispositif selon l'invention est le suivant.The operation of the device according to the invention is as follows.
Comme on le sait, après le bloc finisseur, les fils en acier sont refroidis à l'eau jusqu'à une température de 650 à 800°C et mis en spires au moyen d'une tête (non représentée sur les figures) pour la dépose des spires sur les chaînes de convoyage 7 et 7'. Les spires étalées de fil 6 ainsi constitutées sont alors déplacées par les chaînes 7 et 7' à faible distance au-dessus des parois supérieures 2 des caissons 1.As is known, after the finishing block, the steel wires are cooled with water to a temperature of 650 to 800 ° C. and put into turns by means of a head (not shown in the figures) for the depositing turns on the
Par ailleurs, de l'air est aspiré dans le caisson 1 et s'écoule dans le passage 11. C'est ainsi que l'écoulement d'air par l'ouïe est mieux dirigé, ce qui permet un refroidissement efficace. L'air est alors orienté par l'aile 9 vers le lit des spires 6. Comme l'angle d'inclinaison a de l'aile 9 par rapport à la paroi supérieure 2 est inférieur à celui des dispositifs de type classique, l'air soufflé s'écoule le long du lit des spires de fils 6.Furthermore, air is sucked into the box 1 and flows through the
Lorsqu'on injecte de l'eau par le gicleur à jet plat 12, cette eau est mélangée avec l'air soufflé et donc transformée en brouillard. Comme le gicleur 12 est placé à la sortie du passage 11, il n'y a pas risque de formation de gouttes d'eau sur la face interne de la paroi supérieure 2. Comme on l'a déjà expliqué précédemment, l'injection d'eau sous forme de vapeur est préférable.When water is injected by the
Il va de soi que la présente invention n'est pas limitée aux modes de réalisation particuliers décrits.It goes without saying that the present invention is not limited to the particular embodiments described.
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8112456A FR2507930A1 (en) | 1981-06-22 | 1981-06-22 | DEVICE FOR COOLING SPIRITS OF STEEL WIRES IN HOT ROLLED |
FR8112456 | 1981-06-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0069616A1 true EP0069616A1 (en) | 1983-01-12 |
EP0069616B1 EP0069616B1 (en) | 1984-12-12 |
Family
ID=9259851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19820401083 Expired EP0069616B1 (en) | 1981-06-22 | 1982-06-15 | Device for cooling steel wire spirals in the rolling heat |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0069616B1 (en) |
DE (1) | DE3261534D1 (en) |
FR (1) | FR2507930A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0143488A2 (en) * | 1983-11-28 | 1985-06-05 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Plant to form and for the heat treatment of rolled products in coils and compact wound bundles |
EP0178799A2 (en) * | 1984-10-09 | 1986-04-23 | MORGAN CONSTRUCTION COMPANY (a Massachusetts corporation) | Apparatus for cooling hot rolled steel rod |
EP0359279A2 (en) * | 1988-09-16 | 1990-03-21 | Toa Steel Co., Ltd. | Method for rapid direct cooling of a hot-rolled wire rod |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1047637A (en) * | 1962-08-24 | 1966-11-09 | Morgan Construction Co | Improved hot rolled steel rod |
FR2071643A5 (en) * | 1969-12-01 | 1971-09-17 | Nippon Kokan Kk | |
US3940967A (en) * | 1975-01-10 | 1976-03-02 | Morgan Construction Company | Apparatus for controlled cooling hot rolled steel rod in direct sequence with rod mill |
FR2297679A1 (en) * | 1975-01-18 | 1976-08-13 | Kobe Steel Ltd | PROCESS AND MACHINE FOR COOLING BARS AFTER THEIR HOT ROLLING |
US4168993A (en) * | 1978-08-10 | 1979-09-25 | Morgan Construction Company | Process and apparatus for sequentially forming and treating steel rod |
-
1981
- 1981-06-22 FR FR8112456A patent/FR2507930A1/en active Granted
-
1982
- 1982-06-15 DE DE8282401083T patent/DE3261534D1/en not_active Expired
- 1982-06-15 EP EP19820401083 patent/EP0069616B1/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1047637A (en) * | 1962-08-24 | 1966-11-09 | Morgan Construction Co | Improved hot rolled steel rod |
FR2071643A5 (en) * | 1969-12-01 | 1971-09-17 | Nippon Kokan Kk | |
US3940967A (en) * | 1975-01-10 | 1976-03-02 | Morgan Construction Company | Apparatus for controlled cooling hot rolled steel rod in direct sequence with rod mill |
FR2297679A1 (en) * | 1975-01-18 | 1976-08-13 | Kobe Steel Ltd | PROCESS AND MACHINE FOR COOLING BARS AFTER THEIR HOT ROLLING |
US4168993A (en) * | 1978-08-10 | 1979-09-25 | Morgan Construction Company | Process and apparatus for sequentially forming and treating steel rod |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0143488A2 (en) * | 1983-11-28 | 1985-06-05 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Plant to form and for the heat treatment of rolled products in coils and compact wound bundles |
EP0143488A3 (en) * | 1983-11-28 | 1985-09-25 | Danieli & C. Officine Meccaniche S.P.A. | Plant to form and for the heat treatment of rolled products in coils and compact wound bundles |
EP0178799A2 (en) * | 1984-10-09 | 1986-04-23 | MORGAN CONSTRUCTION COMPANY (a Massachusetts corporation) | Apparatus for cooling hot rolled steel rod |
EP0178799A3 (en) * | 1984-10-09 | 1986-12-30 | MORGAN CONSTRUCTION COMPANY (a Massachusetts corporation) | Apparatus for cooling hot rolled steel rod |
EP0359279A2 (en) * | 1988-09-16 | 1990-03-21 | Toa Steel Co., Ltd. | Method for rapid direct cooling of a hot-rolled wire rod |
EP0359279A3 (en) * | 1988-09-16 | 1991-06-12 | Toa Steel Co., Ltd. | Method for rapid direct cooling of a hot-rolled wire rod |
Also Published As
Publication number | Publication date |
---|---|
FR2507930B1 (en) | 1983-11-10 |
FR2507930A1 (en) | 1982-12-24 |
EP0069616B1 (en) | 1984-12-12 |
DE3261534D1 (en) | 1985-01-24 |
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