FR2579494A1 - Method for casting alloyed steels and alloys, by gravity, in a permanent mould, permitting the manufacture of a finished metal product of the ingot type, of radio soundness and in a small quantity - Google Patents

Method for casting alloyed steels and alloys, by gravity, in a permanent mould, permitting the manufacture of a finished metal product of the ingot type, of radio soundness and in a small quantity Download PDF

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Publication number
FR2579494A1
FR2579494A1 FR8504632A FR8504632A FR2579494A1 FR 2579494 A1 FR2579494 A1 FR 2579494A1 FR 8504632 A FR8504632 A FR 8504632A FR 8504632 A FR8504632 A FR 8504632A FR 2579494 A1 FR2579494 A1 FR 2579494A1
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France
Prior art keywords
alloys
product
casting
half shells
molybdenum
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Application number
FR8504632A
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French (fr)
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FOUQUET JEAN PAUL
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FOUQUET JEAN PAUL
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Publication date
Application filed by FOUQUET JEAN PAUL filed Critical FOUQUET JEAN PAUL
Priority to FR8504632A priority Critical patent/FR2579494A1/en
Publication of FR2579494A1 publication Critical patent/FR2579494A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/08—Divided ingot moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D9/00—Machines or plants for casting ingots
    • B22D9/006—Machines or plants for casting ingots for bottom casting

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Device for casting alloyed steels or alloys based on nickel, chromium, molybdenum, cobalt, copper, etc., in a device formed of 2 metal half-shells. The system makes it possible to obtain ingots or castings with simple cross-sections, in a small quantity and in an economic manner. The device consists of a shell holder which can receive sets of 2 half-shells which constitute the mould for the desired product. A casting system in refractory permits filling of the moulds. A feeder (volume of molten metal) ensures that the product is supplied throughout cooling. The shells are designed so as to obtain a more or less sound product. The device according to the invention is intended particularly for manufacturing remelting ingots and castings which have to undergo further conversion, such as billets and shafts.

Description

Procédé de coulée par gravité d'aciers alliés et d'alliages dans une empreinte permanente, permettant la fabrication d'un-produit métallique fini du type lingot, de santé radio et en faible quantité.Gravity casting process for alloy steels and alloys in a permanent imprint, allowing the manufacture of a finished metal product of the ingot type, of radio health and in small quantities.

Le produit est actuellement fabriqué dans des empreintes en sable non permanentes, pour des petites quantités mais de santé médiocre, ou en grosses quantités par coule continue ou laminage de gros lingots.The product is currently produced in non-permanent sand imprints, for small quantities but of poor health, or in large quantities by continuous casting or rolling of large ingots.

L'invention permet de fabriquer des lingots d'une santé pouvant être parfaite, de formes diverses, en petite quantité et dans des nuances très chargées en éléments tels que nickel, chrome, molybdène, cobalt, etc..0 ainsi que des
alliages à base nickel, cobalt, molybdène, chrome, etc...The invention makes it possible to manufacture ingots of possibly perfect health, of various shapes, in small quantities and in shades heavily loaded with elements such as nickel, chromium, molybdenum, cobalt, etc. as well as
alloys based on nickel, cobalt, molybdenum, chromium, etc ...

L'invention est basée sur un dispositif de coulée dans deux demies coquilles
métalliques de formes et dimensions calculées afin d'obtenir un refroidissement
dirigé et contrôlé du métal liquide; l'ensemble étant alimenté par une masse
lotte (réservoir de métal liquide) calculée pour l'obtention d'un produit
sain.The invention is based on a device for casting in two half shells
metallic shapes and dimensions calculated to obtain cooling
directed and controlled liquid metal; the whole being powered by a mass
monkfish (liquid metal tank) calculated to obtain a product
healthy.

Cette méthode s'applique à un produit de section cylindrique, parallèlépipédi-
que, etc... d'une section hors tout de trois cents millimètres par trois cents
millimètres d'une hauteur de 2 mètres maximum et d'un poids maximum de 2 tonnes.This method applies to a product with a cylindrical, parallelepiped section.
that, etc ... of an overall section of three hundred millimeters by three hundred
millimeters with a height of 2 meters maximum and a maximum weight of 2 tonnes.

L'invention (fig. 1 page 1/3) consiste à couler un métal ou alliage liquide
par un système de coulée (i), en poterie réfractaire (2), qui vient remplir
une empreinte (3), formée par deux demies coquilles métalliques (4 et 4') qui
donnent la forme du produit final (5) (fig. 3 page 2/3) désirs, L'ensemble
étant alimenté par une masselotte (6), calculée pour l'alimentation du produit,
assurant sa santé métallurgique. Les deux demies coquilles sont de formes étu
diées pour reproduire le produit et lui permettre une solidification dirigée
et contr81ée. Ces coquilles sont recouvertes d'un enduit permettant le décol
lage du lingot des demies coquilles. Les demies coquilles ainsi que les poteries réfractaires sont maintenues en place par un dispositif spécial (7 et 7').The invention (fig. 1 page 1/3) consists in casting a metal or liquid alloy
by a casting system (i), in refractory pottery (2), which fills
an imprint (3), formed by two half metal shells (4 and 4 ') which
give the shape of the final product (5) (fig. 3 page 2/3) desires, The whole
being fed by a counterweight (6), calculated for feeding the product,
ensuring its metallurgical health. The two half shells are stu
diées to reproduce the product and allow a directed solidification
and controlled. These shells are covered with a coating allowing the takeoff
ingage of the ingot of the half shells. The half shells as well as the refractory pottery are held in place by a special device (7 and 7 ').

Ce dernier est conçu pour palier aux dilatations lors de la coule du métal
liquide (fig. 5 page 3/3). Plusieurs ensembles de coquilles peuvent être
emmagasinées dans le dispositif spdoial. The latter is designed to compensate for expansions during the casting of metal
liquid (fig. 5 page 3/3). Several sets of shells can be
stored in the spdoial device.

L'invention permet d'obtenir un produit fini (fi. 3 page 2/s), de formes
simples, dans des nuances très élaborées (carçre'es en éléments d'alliages)
en petite quantité, avec une santé parfaite0 The invention makes it possible to obtain a finished product (fi. 3 page 2 / s), of shapes
simple, in very elaborate nuances (squares in elements of alloys)
in small quantities, with perfect health0

Claims (10)

REVENDICATIONS 1) Dispositif permettant la coulée par gravité d'aciers à fortes teneurs en éléments d'additions ou d'alliages base nickel, chrome, molybdène ou cobalt, dans une empreinte permanente formée-de deux demies coquilles (4 et 4') pour la fabrication économique d'un produit fini type lingot, de santé parfaite en petite quantité. 1) Device allowing the gravity casting of steels with high contents of additives or alloys based on nickel, chromium, molybdenum or cobalt, in a permanent impression formed by two half shells (4 and 4 ') for the economical manufacturing of an ingot-type finished product, of perfect health in small quantities. 2) Dispositif selon la revendication (1) caractérisée en ce que le produit métallique est de section cylindrique, parallèlépipédique, etc... et de longueur inférieure ou égale à dix fois le diamètre moyen. 2) Device according to claim (1) characterized in that the metal product is of cylindrical section, parallelepiped, etc. ... and of length less than or equal to ten times the average diameter. 3) Dispositif selon la revendication (i) caractérisée en ce que la forme de5 demies coquilles est dimensionnée afin d'obtenir un produit sain et de forme désirée. Leurs dimensions sont étudiées en fonction du produit à obtenir et de son critère de santé. L'épaisseur des demies coquilles suit une règle permettant un refroidissement dirigé assurant la santé de la pièce: e +4 x  3) Device according to claim (i) characterized in that the shape of 5 half shells is dimensioned in order to obtain a healthy product and of desired shape. Their dimensions are studied according to the product to be obtained and its health criterion. The thickness of the half shells follows a rule allowing controlled cooling ensuring the health of the part: e +4 x 4 100 4,100 4) Dispositif selon la revendication (1) caractérisée en ce que le système d'alimentation est calculé afin d'obtenir un produit sain. Celui-ci suit la règle de refroidissement: Tfig. masselotte = 1,2 Tfigo pièce. 4) Device according to claim (1) characterized in that the supply system is calculated in order to obtain a healthy product. This follows the cooling rule: Tfig. counterweight = 1.2 Tfigo each. 5) Dispositif selon la revendication (1) caractérisée en ce que tous les alliages et principalement les alliages comprenant de fortes quantités d'éléments tels que nickel, chrome, molybdène, cuivre, cobalt, etc... ainsi que les alliages à base nickel, chrome, molybdène, cuivre, cobalt, etc... peuvent 8tre coulés. 5) Device according to claim (1) characterized in that all the alloys and mainly the alloys comprising large amounts of elements such as nickel, chromium, molybdenum, copper, cobalt, etc ... as well as nickel-based alloys , chromium, molybdenum, copper, cobalt, etc ... can be poured. 6) Dispositif selon la revendication (1) caractérisée en ce que l'ensemble de coulée du métal est assuré par un système de poteries réfractaires (2), calculées pour obtenir un remplissage calme de l'empreinte. 6) Device according to claim (1) characterized in that the metal casting assembly is provided by a system of refractory pottery (2), calculated to obtain a calm filling of the imprint. 7) Dispositif selon la revendication (i) caractérisée en ce que ltenveloppe support, de conception permanente, comprend des dispositifs de manutentions ainsi que des artifices permettant la dilatation lors de la coulée(fig. 5 page 3/3 ) composé d'un poussoir (8) et d'un ressort de rappel (9). 7) Device according to claim (i) characterized in that the support lten envelope, of permanent design, includes handling devices as well as devices allowing expansion during casting (fig. 5 page 3/3) composed of a pusher (8) and a return spring (9). 8) Dispositif selon la revendication (1) caractérisée en ce que le nombre d'ensemble composé par les demies coquilles n'est pas limité. Ce nombre est en général un multiple de 2 pour facilité le remplissage calme sauf en ce qui concerne les gros lingots où ce nombre est limité à 1.  8) Device according to claim (1) characterized in that the number of assembly composed by the half shells is not limited. This number is generally a multiple of 2 to facilitate calm filling, except for large ingots where this number is limited to 1. 9) Dispositif selon la revendication (1) caractérisée en ce que la nature de l'enveloppe support peut être Bn moulé, mécanosoudé, ou autre matériaux résistant à la chaleur. 9) Device according to claim (1) characterized in that the nature of the support envelope can be molded Bn, mechanically welded, or other heat resistant materials. 10) Dispositif selon la revendication (1) caractérisé en ce que l'utilisation de gaz neutres tel qu'azote ouargon peuvent être employds pour éviter l'oxydation des alliages coulés. 10) Device according to claim (1) characterized in that the use of neutral gases such as nitrogen or argon can be employed to avoid oxidation of the cast alloys.
FR8504632A 1985-03-28 1985-03-28 Method for casting alloyed steels and alloys, by gravity, in a permanent mould, permitting the manufacture of a finished metal product of the ingot type, of radio soundness and in a small quantity Withdrawn FR2579494A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8504632A FR2579494A1 (en) 1985-03-28 1985-03-28 Method for casting alloyed steels and alloys, by gravity, in a permanent mould, permitting the manufacture of a finished metal product of the ingot type, of radio soundness and in a small quantity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8504632A FR2579494A1 (en) 1985-03-28 1985-03-28 Method for casting alloyed steels and alloys, by gravity, in a permanent mould, permitting the manufacture of a finished metal product of the ingot type, of radio soundness and in a small quantity

Publications (1)

Publication Number Publication Date
FR2579494A1 true FR2579494A1 (en) 1986-10-03

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Family Applications (1)

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FR8504632A Withdrawn FR2579494A1 (en) 1985-03-28 1985-03-28 Method for casting alloyed steels and alloys, by gravity, in a permanent mould, permitting the manufacture of a finished metal product of the ingot type, of radio soundness and in a small quantity

Country Status (1)

Country Link
FR (1) FR2579494A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6244328B1 (en) * 1997-05-14 2001-06-12 Heinrich Wagner Sinto Maschinenfabrik Gmbh Mold for automatically working mold systems and a process for the manufacture of the molds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6244328B1 (en) * 1997-05-14 2001-06-12 Heinrich Wagner Sinto Maschinenfabrik Gmbh Mold for automatically working mold systems and a process for the manufacture of the molds

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