AU5537898A - Method and plant for producing sheathed continuously cast products - Google Patents
Method and plant for producing sheathed continuously cast products Download PDFInfo
- Publication number
- AU5537898A AU5537898A AU55378/98A AU5537898A AU5537898A AU 5537898 A AU5537898 A AU 5537898A AU 55378/98 A AU55378/98 A AU 55378/98A AU 5537898 A AU5537898 A AU 5537898A AU 5537898 A AU5537898 A AU 5537898A
- Authority
- AU
- Australia
- Prior art keywords
- sheathing
- metal
- mold
- casting
- melt
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 25
- 238000005266 casting Methods 0.000 claims description 40
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 230000004907 flux Effects 0.000 description 15
- 238000007711 solidification Methods 0.000 description 9
- 230000008023 solidification Effects 0.000 description 9
- 238000003466 welding Methods 0.000 description 9
- 239000002893 slag Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000161 steel melt Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron metals Chemical class 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/008—Continuous casting of metals, i.e. casting in indefinite lengths of clad ingots, i.e. the molten metal being cast against a continuous strip forming part of the cast product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
AUSTRAL IA Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Applicant(s): SMS SCHLOEMANN-SIEMAG
AKTIENGESELLSCHAFT
Invention Title: METHOD AND PLANT FOR PRODUCING SHEATHED CONTINUOUSLY CAST
PRODUCTS
S.
S.
S
S
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S
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S S
S
*5
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S S 55 S. S S S The following statement is a full description of this invention, including the best method of performing it known to me/us: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of producing thin metal strip, wherein the liquid molten metal is contacted with and welded to a flat metal product, preferably a hot strip of steel. The present invention also relates to a plant for carrying out the method by means of an oscillating mold, i.e., stationary mold, or a travelling mold, preferably a two-roller casting unit, in which the flat metal product of hot strip is continuously introduced in such a way that it surrounds the entering molten metal on all sides and is discharged through a delivery system.
2. Description of the Related Art Flat products having thicknesses of less than 2mm are to date primarily produced by rolling hot strip which can then also be cold rolled down to thicknesses of 0.2mm. The requirements with respect to sectional dimensions and planarity of the cold strip must already be adjusted by percentage during the hot rolling process because a percentage correction of the accuracy to dimension is no longer possible during the cold rolling process. Starting at a width/thickness ratio of about 100/1, the resistance to flow in the roller gap becomes practically infinitely large in the width direction, so that a percentage correction of sectional dimension and planarity is no longer possible. For this reason, developments of casting technologies which attempt to realize, for example, sizes with widths of greater than 1,000mm and thicknesses of less than 10mm have up to now essentially not gone past the status of a semi-production unit.
When casting thin sizes with an oscillating mold with the formation of a slag film thickness inherent in the system and with the prerequisite of the same production as it is achieved in a conventional slab unit, the main problem is that, corresponding to the lowering of the casting thickness and the increase of the casting speed, the surface area produced per unit of time increases by a multiple and the slag film thickness decreases simultaneously. Also increasing at the same time are the solidification heat released per unit of time and, thus, the heat flux in the mold.
Fig. 1 of the drawing illustrates the resulting heat flux in dependence on the casting thickness and the casting speed. For example, if the critical heat flux of a conventionally produced S slab having a thickness of 200mm and being cast with Im/min is about 1MW/m 2 the lowering of the casting thickness to, for example, 50mm while simultaneously increasing the casting speed to 6m/min results in an increase of the heat flux to 2.8MW/m 2 Corresponding to the shrinkage index, the danger of the occurrence of longitudinal cracks increases to 2.8 from the standardized value 1 in the case of a standard slab, the susceptibility to longitudinal cracks is 2.8 times greater than in a standard slab with the width being equal.
The limit analysis of the partial illustrations of Fig. 1 exhibits a minimum relative slag film thickness of 0.001 or 0.02mm and essentially reflects the conditions when casting without casting powder. The integral heat flux reaches a value of about 5MW/m 2 and can also be found in billet plants in which casting is carried without casting powder or casting slag.
0Similar conditions with respect to the heat flux also exist when casting strip with travelling molds. The lack of slag also results in these processes in heat fluxes on the level of the limit analysis.
When transferring these results to strip plants, the following becomes clear: i. The slag-free casting results in a significantly higher heat flux in the mold during the solidification and, thus, 2. results in a significantly higher shrinkage during the casting process, as well as 3. causes a correspondingly higher thermal load of'the mold which leads to the danger of longitudinal cracks in the strip surface and leads to lower service lives of the mold.
At the present time, the problems described above lead to uncontrollable surface defects when casting thin strands having a thickness of less than 30mm in plants with a travelling mold, for example, in accordance with the two-roller method (Bessemer principle), the Hazelett method or in belt units and the oneroller method.
The best results have so far been achieved using twin rollers. In this method, liquid steel is cast symmetrically
S
between two rollers which rotate in opposite directions, the steel solidifies in the narrowest gap between the rollers, i.e., the kissing point, and is discharged through a delivery unit.
The surface quality which is achieved by this method and particularly the accuracy to dimension in thickness direction and width direction, planarity and sectional size, are not reproducible and cannot be realized with the percentage tolerances for cold strip demanded by the market. This is particularly true for the production of C-steel.
The explanation for this is the solidification behavior of the steel. Under the casting conditions present in the twin rollers, the steel solidifies on a "cold" roller surface in a very short time. The heat flux of about 5MW/m 2 flows radially into the roller surface and is decreased by the roller cooling means.
S The following effects occur in this connection: The roller-type mold which is subjected to a high thermal load has, for example, a cylindrical cold dimension and expands in the contact area due to the thermal increase with the solidifying strand and imparts a negative crown on the strip.
However, a correction of the sectional dimensions during further processing in the rolling mill is practically no longer possible because of the lacking transverse flux in the roller gap in the case of the width/thickness ratios of greater than or equal to 100/1.
The strand surface shrinks during the solidification parallel to the roller surface in the casting direction as well as in the width direction, so that a tensional stress exists in the strand shell and a compressive stress exists in the mold surface. Simultaneously, the mold surface expands during a rotation cycle due to the heat flux in radial direction as well as in axial direction and produces a tensile stress in the strand surface in both directions.
The superposition of these stresses with the stresses caused by the shrinkage of the strand shell leads to a shrinkage and adherence of the strand shell to the mold surface. This, in turn, leads to the formation of longitudinal cracks due to the axially acting stresses, transversely of the casting direction, and to transverse cracks due to the radially acting stresses, longitudinally of the casting direction. With increasing width of the cast sizes, the absolute value and, thus, the influence of the axial shrinkage on the danger of the eo longitudinal crack formation and on the adjustment of a percentage acceptable planarity and freedom from cracks also -K increase.
Various patent documents, for example, DE 34 40 234, DE 34 235, DE 34 40 237, report about travelling molds in the form of strips and/or rollers. In these instances, it is attempted to improve the surface quality by minimizing the friction between the solidifying surface of the molten metal and the mold material, in order to avoid cracks and achieve a uniform surface quality. A connection or welding between the cold surfaces and the crystallized material are intentionally avoided.
In accordance with another proposal disclosed in DE 34 06 730, a metal foil is continuously supplied into the mold of a horizontal continuous casting plant for the purpose of lubricating the mold wall.
Not solved in the prior art until today are the problems of the high heat flux and the profile and planarity tolerances in the casting of strips, preferably of steel, having widths of between 400mm and 1600mm and thicknesses of less than 9 9e SUMMARY OF THE INVENTION Therefore, it is the primary object of the present invention to propose a continuous casting method and a plant for carrying out the method on the basis of an oscillating or travelling mold in which the heat flux from the solidifying melt is controlled in such a way that the shrinkage constitutes a subcritical value, a welding connection between the solidifying melt and the flat product, for example, a hot strip, takes place simultaneously, and an optimum strip geometry with respect to sectional size and planarity is ensured.
In accordance with the present invention, the solidus temperature of the metal sheathing is always smaller than or equal to the solidus temperature of the molten metal.
p In the mold of the plant according to the present invention, the sheathing material is guided along at least one of the wall surfaces of the mold.
ova* The unexpected solution according to the present invention 4 *e resides in the fact that the critical shrinkage of the solidifying strand surface which is subjected to a tensile stress is compensated by the superposition of an oppositely acting compressive stress caused by the expansion of the sheathing which is located between the mold and the liquid metal.
The sheathing itself initially absorbs the heat flux capacitively and, consequently, remains relatively cold at the side facing the mold wall and is capable of absorbing greater stress on this side without the formation of cracks. i The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of the disclosure. For a better understanding of the invention, its operating advantages, specific objects attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
e e BRIEF DESCRIPTION OF THE DRAWING In the drawing: Fig. 1 is a diagram showing the heat fluxes occurring in dependence on casting thickness and casting speed; Fig. 2 is a schematic illustration of a two-roller casting machine according to the present invention; Fig. 3 is a diagram explaining the basic requirements for a composite material connection between the solidifying melt and the sheathing; and Fig. 4 is a perspective view, on a larger scale, showing the casting procedure.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Fig. 1 of the drawing is discussed above.
Fig. 2 of the drawing shows a two-roller casting machine according to the present invention.
Liquid steel is introduced from a distributor 1 through a steel supply system 2 into the sheathing 4 which is continuously supplied at least on one side between the melt 3 and a travelling mold 5 and is discharged with the solidifying melt. In the solidifying zone, which simultaneously constitutes the welding zone 6, the solidifying melt 7 or strand shell is welded to the sheathing 4. The complete solidification of the metal strip 13 is concluded at the kissing point, the roller apex 8 or in the area of the strand guide means 10. The strand guide means may be composed of rollers or plates and can be used for reducing the strand thickness. This facilitates an increase of the casting o speed, and thus, of the capacity by moving the final solidification 9 out of the roller apex 8 or kissing point.
oe A cooling system 14 is arranged immediately following the travelling mold 5. The area of the strand guiding means is /3 provided with a housing 15 and may be operated in a gascontrolled and/or temperature-controlled manner.
The method according to the present invention takes place as shown in connection with the example of the twin-roller unit as follows: The energy released during the solidification of the steel melt 3 heats the sheathing 4 located between the travelling mold and the steel melt 3 or the strand shell 7 up to 7o sheathing on the melt side, which leads to welding of the strand shell to the sheathing 4 in the active area of the mold, the welding zone 6. In addition, substances 18 for reducing the melting point and for reinforcing the welding process can be applied to g the side of the sheathing facing the liquid melt. Due to the composite material connection of sheathing and solidified melt 7, the strand shell, the tensile stress 12 existing in the strand shell 7 is superimposed and compensated by the compressive stress 11 existing in the sheathing 4.
*e This makes it possible to control the planarity and profile of the strip to be produced and to avoid longitudinal cracks.
e The thermal load acting, for example, on roller-type molds, is substantially reduced by the capacitive heating of the sheathing,
I
so that the service life of the mold is increased at the same time.
By using sheathings of, for example, high-grade steel, aluminum, copper or other non-iron metals, the invention makes it possible to produce composite materials, particularly coated materials, such as stainless coated carbon steel as well as flat or also long products.
Fig. 3 of the drawing shows the basic requirements for a composite material connection between solidifying melt and sheathing.
The solidus temperature of the material serving as sheathing must always be smaller than or equal to the solidus temperature of the melt being used, i.e, TS Sch TS U.
When the melt solidifies at the sheathing, energy is still discharged even when the strand shell cools from T S Sch to T s which is helpful to the welding action.
SFor example, a construction steel melt is used with a solidus temperature of, for example, 1,520 0 C which is cast into a sheathing of high-grade steel having a solidus temperature of, for example, 1,460 0 C. The released solidification heat of the construction steel heats the sheathing up to 1,4600C and the steel is welded to the sheathing. Because of the solidus temperature difference of 600C., the high-grade steel layer is partially melted and forms the welding zone during the subsequent common cooling.
The present invention can be used in Hazelett plants as well as casting wheels, as shown in Fig. 4.
The present invention, examples of which have been described above, provides the following advantages: Controlled production of a 100% composite material o connection by a certain welding between the melt and the sheathing of high-grade steel, non-iron metal or other steel qualities; Defined surface in size and planarity; C go Casting of qualities which are sensitive to heat cracks with high casting speeds; Substantial cost reduction by substituting, for example, solid stainless steel products by a composite material having at least one stainless surface; Freely selectable final and coating thicknesses; New material combinations; Connection of the casting process with the rolling process is possible in-line; No scaling because of specified cooling; Low thermal load of the mold due to capacitive heating
S.
S* of the sheathing; Possibility of increasing the casting speed (capacity) by moving the final solidification from the roller apex or kissing point; and So Increase of the mold service life.
While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, i'1 it will be understood that the invention may be embodied otherwise without departing from such principles.
I
Claims (14)
1. A method of continuously casting metal with an oscillating or travelling mold for manufacturing sheathed material, the method comprising casting a metal melt between a metal sheathing which continuously travels with casting speed, wherein the solidus temperature of the metal sheathing is'always smaller than or equal to the solidus temperature of the metal melt.
2. The method according to claim 1, wherein the metal melt is liquid steel.
3. The method according to claim 1, wherein the metal and the sheathing are of steel.
4. The method according to claim i, wherein the sheathing is of stainless steel.
5. The method according to claim i, wherein the sheathing *is of a non-iron metal.
6. The method according to claim 1, wherein the sheathing is less than 50of of total thickness. is less than 50%~ of total thickness. I I /7
7. The method according to claim i, wherein the sheathing material is heated prior to use up to at most the solidus temperature.
8. A plant for manufacturing sheathed material by continuously casting a metal melt in an oscillating or travelling mold, comprising means for casting the metal melt between a metal sheathing travelling continuously with casting speed, the mold having a wall surface, wherein the sheathing material is guided along at least one of the wall surfaces of the mold.
9. The plant according to claim 8, comprising means for controlling the temperature of the mold. o
10. The plant according to claim 8, wherein the mold comprises a two-roller mold.
11. The plant according to claim 8, wherein the mold is of a metal or ceramic material. 98
12. The plant according to claim 8, comprising a strand guiding means for reducing the cross-section of a sheathed metal strip with liquid core. strip with liquid core. 4 S
13. The plant according to claim 8, comprising means for applying substances for reducing the melting point onto a surface of the sheathing facing the melt for reinforcing a composite material connection between the sheathing and the solidifying melt.
14. The plant according to claim 8, further comprising a gas-controlled housing, wherein the sheathed metal strip is guided through the housing. DATED THIS 19TH DAY OF FEBRUARY 1998 SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT By its Patent Attorneys: GRIFFITH HACK Fellows Institute of Patent Attorneys of Australia 4. 0 4
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19651324A DE19651324C2 (en) | 1996-12-11 | 1996-12-11 | Method and device for producing coated continuous cast products |
EP97119937A EP0852165A3 (en) | 1996-12-11 | 1997-11-14 | Method and apparatus for producing of coated continuous casting products |
JP10022361A JPH11221651A (en) | 1996-12-11 | 1998-02-03 | Method for making forged product subjected to coating and apparatus therefor |
BR9806394-4A BR9806394A (en) | 1996-12-11 | 1998-02-17 | Process and device for the production of products involved in continuous casting. |
CA002229750A CA2229750A1 (en) | 1996-12-11 | 1998-02-18 | Method and plant for producing sheathed continuously cast products |
AU55378/98A AU5537898A (en) | 1996-12-11 | 1998-02-19 | Method and plant for producing sheathed continuously cast products |
ZA981366A ZA981366B (en) | 1996-12-11 | 1998-02-19 | Sheathed continuously cast products |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19651324A DE19651324C2 (en) | 1996-12-11 | 1996-12-11 | Method and device for producing coated continuous cast products |
JP10022361A JPH11221651A (en) | 1996-12-11 | 1998-02-03 | Method for making forged product subjected to coating and apparatus therefor |
BR9806394-4A BR9806394A (en) | 1996-12-11 | 1998-02-17 | Process and device for the production of products involved in continuous casting. |
CA002229750A CA2229750A1 (en) | 1996-12-11 | 1998-02-18 | Method and plant for producing sheathed continuously cast products |
AU55378/98A AU5537898A (en) | 1996-12-11 | 1998-02-19 | Method and plant for producing sheathed continuously cast products |
ZA981366A ZA981366B (en) | 1996-12-11 | 1998-02-19 | Sheathed continuously cast products |
Publications (1)
Publication Number | Publication Date |
---|---|
AU5537898A true AU5537898A (en) | 1999-09-02 |
Family
ID=31950875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU55378/98A Abandoned AU5537898A (en) | 1996-12-11 | 1998-02-19 | Method and plant for producing sheathed continuously cast products |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0852165A3 (en) |
JP (1) | JPH11221651A (en) |
AU (1) | AU5537898A (en) |
BR (1) | BR9806394A (en) |
CA (1) | CA2229750A1 (en) |
DE (1) | DE19651324C2 (en) |
ZA (1) | ZA981366B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19850213C2 (en) * | 1998-01-23 | 2001-08-30 | Sms Demag Ag | Casting process for a thin metal strip and associated casting device |
DE10333589B9 (en) * | 2003-07-24 | 2010-06-10 | Federal-Mogul Wiesbaden Gmbh & Co. Kg | Method for producing a band-shaped composite material for slide bearing production and apparatus for carrying out the method |
DE102006057858A1 (en) | 2006-12-08 | 2008-08-21 | Vladimir Volchkov | Continuous casting method for steels which are highly alloyed and have high carbon content comprises casting melt on to strip of unalloyed, low-carbon steel whose edges are brought together around it and welded together |
DE102012017682A1 (en) | 2012-08-31 | 2014-03-06 | Vladimir Volchkov | Continuous casting of non-ferrous metals involves pouring melt of non-ferrous metal in continuously formed movable metallic sheath, forming continuous cast block, and continuously welding edge strips in controlled protective atmosphere |
DE102012017684A1 (en) | 2012-08-31 | 2014-03-06 | Vladimir Volchkov | Continuous casting of non-ferrous metals, comprises casting a melt of non-ferrous metal on movable metallic sheath, which is made of band, subjecting band edges to continuous welding to form melt, and wrapping continuous cast block |
BR112019002668B1 (en) | 2016-08-10 | 2022-07-26 | Nucor Corporation | APPARATUS AND METHOD FOR CONTINUOUS CASTING OF METAL STRIP; SIDE DAM RETAINER AND SIDE DAM ASSEMBLY FOR CONTINUOUS METAL STRIP FOUNDRY |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2055980A (en) * | 1933-04-12 | 1936-09-29 | Alfred J Liebmann | Method of casting or molding metals |
US2128943A (en) * | 1936-04-01 | 1938-09-06 | American Rolling Mill Co | Formation of encased structures by direct casting |
FR1435936A (en) * | 1965-03-08 | 1966-04-22 | Siderurgie Fse Inst Rech | Method and device for the continuous casting of liquid products |
DE3340844C1 (en) * | 1983-11-11 | 1984-12-20 | Mannesmann AG, 4000 Düsseldorf | Continuous casting mold with cooling device for casting metal, especially steel |
JPH0360848A (en) * | 1989-07-31 | 1991-03-15 | Nippon Steel Corp | Production of 18-8 series austenite stainless steel strip |
US5476725A (en) * | 1991-03-18 | 1995-12-19 | Aluminum Company Of America | Clad metallurgical products and methods of manufacture |
-
1996
- 1996-12-11 DE DE19651324A patent/DE19651324C2/en not_active Expired - Lifetime
-
1997
- 1997-11-14 EP EP97119937A patent/EP0852165A3/en not_active Withdrawn
-
1998
- 1998-02-03 JP JP10022361A patent/JPH11221651A/en not_active Withdrawn
- 1998-02-17 BR BR9806394-4A patent/BR9806394A/en not_active Application Discontinuation
- 1998-02-18 CA CA002229750A patent/CA2229750A1/en not_active Abandoned
- 1998-02-19 ZA ZA981366A patent/ZA981366B/en unknown
- 1998-02-19 AU AU55378/98A patent/AU5537898A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE19651324A1 (en) | 1998-06-18 |
CA2229750A1 (en) | 1999-08-18 |
EP0852165A3 (en) | 1999-01-07 |
EP0852165A2 (en) | 1998-07-08 |
JPH11221651A (en) | 1999-08-17 |
BR9806394A (en) | 1999-12-21 |
ZA981366B (en) | 1998-09-30 |
DE19651324C2 (en) | 1999-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK1 | Application lapsed section 142(2)(a) - no request for examination in relevant period |