FR2508829A1 - Cooling and lubrication of walls of continuous casting moulds - where single liq. consisting of oil or emulsion of oil in water performs both functions - Google Patents

Cooling and lubrication of walls of continuous casting moulds - where single liq. consisting of oil or emulsion of oil in water performs both functions Download PDF

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Publication number
FR2508829A1
FR2508829A1 FR8113219A FR8113219A FR2508829A1 FR 2508829 A1 FR2508829 A1 FR 2508829A1 FR 8113219 A FR8113219 A FR 8113219A FR 8113219 A FR8113219 A FR 8113219A FR 2508829 A1 FR2508829 A1 FR 2508829A1
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France
Prior art keywords
oil
liq
cooling
wall
walls
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Granted
Application number
FR8113219A
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French (fr)
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FR2508829B1 (en
Inventor
Bernard Lacoste
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Fives Cail Babcock SA
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Fives Cail Babcock SA
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Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to FR8113219A priority Critical patent/FR2508829A1/en
Publication of FR2508829A1 publication Critical patent/FR2508829A1/en
Application granted granted Critical
Publication of FR2508829B1 publication Critical patent/FR2508829B1/fr
Granted legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12Accessories for subsequent treating or working cast stock in situ
    • B22D11/124Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1245Accessories for subsequent treating or working cast stock in situ for cooling using specific cooling agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/07Lubricating the moulds

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

A cooling liq. which is also a lubricant is circulated along the rear surfaces of the mould walls. At least the upper part of the walls is porous; and the pressure of the liq. is controlled so that a predetermined amt. flows through the wall to lubricate the surface of the mould wall in contact with the metal being cast. The pref. cooling liq. consists of a mineral oil; a vegetable oil; or an emulsion of oil in water. The overall result is the simplification of continuous casting plant by using the same liq. for both cooling and lubricating the mould.

Description

La présente invention concerne les lingotières de coulée continue constituées par un tube ouvert à ses deux extrémités et dans lesquelles le métal en fusion est introduit en continu à l'une des extrémités, le produit coulé, partiellement solidifié, étant extrait également en continu à l'autre extrémité. The present invention relates to continuous casting ingot molds constituted by a tube open at its two ends and into which the molten metal is introduced continuously at one of the ends, the cast product, partially solidified, being also extracted continuously at l 'other end.

Les parois des lingotières sont refroidies par circulation d'eau soit dans des canaux ou des rainures percés dans leur épaisseur, soit dans des passages formés par des chemises doublant les parois. Ce refroidissement provoque la solidification du métal en contact avec la paroi de la lingotiereet la formation d'une peau dont l'épaisseur croit de l'entrée jusqu'à la sortie de la lingo tiere et qui doit être suffisamment résistante pour résister à la pression~du métal liquide à l'extérieur de la lingotière. The walls of the molds are cooled by circulation of water either in channels or grooves drilled in their thickness, or in passages formed by liners lining the walls. This cooling causes the solidification of the metal in contact with the wall of the ingot mold and the formation of a skin whose thickness increases from the entry to the exit of the ingot mold and which must be sufficiently resistant to withstand the pressure. ~ liquid metal outside the mold.

Par ailleurs, la surface intérieure de la paroi de la lingotière est lubrifiée pour empêcher la peau de métal solidifiée d'y adhérer Pour cela, on introduit dans la partie supérieure de la lingotière, le long de sa surfa- ce intérieure, un lubrifiant constitué par eemple par Ulle huile minérale ou végétale. In addition, the internal surface of the wall of the ingot mold is lubricated to prevent the solidified metal skin from adhering to it. To do this, a lubricant consisting of, along its internal surface, is introduced into the upper part of the ingot mold. for example by Ulle mineral or vegetable oil.

Le but de la présente invention est de simplifier les installations annexées à la lingotière en utilisant le même liquide pour son refroidissement et sa lubrification. The object of the present invention is to simplify the installations annexed to the ingot mold by using the same liquid for its cooling and lubrication.

Conformément à la présente invention, on utilise comme liquide de refroidissement un lubrifiant que l'on fait circuler au contact de la paroi de la lingotière, dont la partie supérieure au moins est poreuse, et sous une pression réglée pour qu'un débit prédéterminé de lubrifiant pénètre dans la lingotière à travers la partie poreuse de la paroi. La paroi de la lingotière peut être formée d'un matériau poreux ou percée de canaux de faible section. In accordance with the present invention, a lubricant which is circulated in contact with the wall of the ingot mold, the upper part of which at least is porous, and under a pressure adjusted so that a predetermined flow rate of lubricant enters the mold through the porous part of the wall. The wall of the mold can be formed of a porous material or pierced with channels of small section.

On peut utiliser comme liquide de refroidissement les lubrifiants suivants : huile minérale à point d'éclair élevé pour utilisation dans une atmosphère à haute température (supérieure à 1500C), huile végétale telle que huile de colza, émulsion d'huile ou de graisse dans l'eau.  The following lubricants can be used as coolant: mineral oil with a high flash point for use in a high temperature atmosphere (above 1500C), vegetable oil such as rapeseed oil, oil or fat emulsion in l 'water.

La description qui suit se réfère au dessin l'accompagnant qui montre, à titre d'exemple, une lingotière utilisable pour la mise en oeuvre de l'invention. The following description refers to the accompanying drawing which shows, by way of example, an ingot mold which can be used for implementing the invention.

L'unique figure de ce dessin est une coupe longitudinale d'une lingotière de coulée continue à axe vertical. The only figure in this drawing is a longitudinal section of a continuous casting mold with a vertical axis.

Cette lingotière de forme tubulaire, ouverte à ses deux extrémités, comporte une paroi de forte épaisseur 10, généralement en cuivre ou en alliage de cuivre qui définit la cavité de moulage. Elle peut etre monobloc ou formée de plaques assemblées par des vis ou par des dispositifs de serrage permettant de modifier sa section. This tubular ingot mold, open at its two ends, has a very thick wall 10, generally made of copper or a copper alloy which defines the molding cavity. It can be in one piece or formed of plates assembled by screws or by clamping devices allowing its section to be modified.

La partie supérieure de la paroi 10 est poreuse; .elle peut etre formée d'un matériau poreux, par exemple un métal fritté à base d'alliages de cuivre, comme représenté sur la partie droite de la figure, ou percée dans toute son épaisseur de canaux de très faible section, dont le diamètre est inférieur à 1 mm, comme représenté sur la partie gauche de la figure. The upper part of the wall 10 is porous; .it can be formed from a porous material, for example a sintered metal based on copper alloys, as represented on the right part of the figure, or drilled in all its thickness of channels of very small section, whose diameter is less than 1 mm, as shown on the left side of the figure.

La lingotière comporte une chemise 12, qui peut autre formée de caissons fixés sur la paroi 10, et une pompe 14 permet de faire circuler un liquide de refroidissement dans les passages ménagés entre la paroi et la chemise. The ingot mold has a jacket 12, which may further be formed from boxes fixed to the wall 10, and a pump 14 makes it possible to circulate a cooling liquid in the passages formed between the wall and the jacket.

On utilise comme liquide de refroidissement un lubrifiant tel que de l'huile minérale, de l'huile de colza, une émulsion d'huile dans l'eau, etc ..., et la pression à la sortie de la pompe 14 est réglée pour qu'un débit prédéterminé de ce liquide pénètre dans la lingotière, à travers la partie poreuse de la paroi, de façon à former un film lubrifiant entre la paroi et la peau du produit coulé 16.  A lubricant such as mineral oil, rapeseed oil, an oil-in-water emulsion, etc., is used as coolant, and the pressure at the outlet of pump 14 is adjusted. so that a predetermined flow rate of this liquid enters the ingot mold, through the porous part of the wall, so as to form a lubricating film between the wall and the skin of the cast product 16.

Claims (2)

REVENDICATIONS 1. Procédé de refroidissement et de lubrification de la1. Method of cooling and lubricating the paroi d'une lingotière de coulée continue, refroidie wall of a continuous casting mold, cooled par circulation d'un liquide, caractérisé en ce qu'on by circulation of a liquid, characterized in that utilise comme liquide de refroidissement un lubrifiant uses lubricant as coolant que l'on fait circuler au contact de la paroi de la that we circulate in contact with the wall of the lingotière, dont la partie supérieure au moins est poreu ingot mold, at least the upper part of which is porous se, et sous une pression réglée pour qu'un débit pré se, and under a pressure set so that a pre flow déterminé de lubrifiant pénètre dans la lingotière à determined lubricant enters the mold at travers la partie poreuse de la paroi. through the porous part of the wall. 2. Procédé selon la revendication 1, caractérisé en ce2. Method according to claim 1, characterized in that qu'on utilise comme lubrifiant une huile minérale, une that we use as a lubricant a mineral oil, a huile végétale ou une émulsion d'huile dans l'eau.  vegetable oil or an oil in water emulsion.
FR8113219A 1981-07-06 1981-07-06 Cooling and lubrication of walls of continuous casting moulds - where single liq. consisting of oil or emulsion of oil in water performs both functions Granted FR2508829A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8113219A FR2508829A1 (en) 1981-07-06 1981-07-06 Cooling and lubrication of walls of continuous casting moulds - where single liq. consisting of oil or emulsion of oil in water performs both functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8113219A FR2508829A1 (en) 1981-07-06 1981-07-06 Cooling and lubrication of walls of continuous casting moulds - where single liq. consisting of oil or emulsion of oil in water performs both functions

Publications (2)

Publication Number Publication Date
FR2508829A1 true FR2508829A1 (en) 1983-01-07
FR2508829B1 FR2508829B1 (en) 1983-10-14

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FR8113219A Granted FR2508829A1 (en) 1981-07-06 1981-07-06 Cooling and lubrication of walls of continuous casting moulds - where single liq. consisting of oil or emulsion of oil in water performs both functions

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0449771A1 (en) * 1990-03-26 1991-10-02 Alusuisse-Lonza Services Ag Controlled feeding of molten metal into the moulds of an automatic continuous casting plant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1083522A (en) * 1952-05-08 1955-01-10 Porous mold for continuous metal casting
US2949652A (en) * 1957-02-13 1960-08-23 Ici Ltd Continuous casting of metals
CH363129A (en) * 1958-12-11 1962-07-15 Concast Ag Process for the continuous casting of metal strands and a permanent mold for carrying out the process
FR1486339A (en) * 1966-07-11 1967-06-23 Vaw Ver Aluminium Werke Ag Method of supplying lubricant in the continuous casting of metals in stationary ingot molds

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1083522A (en) * 1952-05-08 1955-01-10 Porous mold for continuous metal casting
US2949652A (en) * 1957-02-13 1960-08-23 Ici Ltd Continuous casting of metals
CH363129A (en) * 1958-12-11 1962-07-15 Concast Ag Process for the continuous casting of metal strands and a permanent mold for carrying out the process
FR1486339A (en) * 1966-07-11 1967-06-23 Vaw Ver Aluminium Werke Ag Method of supplying lubricant in the continuous casting of metals in stationary ingot molds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0449771A1 (en) * 1990-03-26 1991-10-02 Alusuisse-Lonza Services Ag Controlled feeding of molten metal into the moulds of an automatic continuous casting plant
AU634638B2 (en) * 1990-03-26 1993-02-25 Alusuisse Technology & Management Ltd. Program-controlled feeding of molten metal into the dies of an automatic continuous casting plant

Also Published As

Publication number Publication date
FR2508829B1 (en) 1983-10-14

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