US3710436A - Method for the production of plates - Google Patents
Method for the production of plates Download PDFInfo
- Publication number
- US3710436A US3710436A US00032459A US3710436DA US3710436A US 3710436 A US3710436 A US 3710436A US 00032459 A US00032459 A US 00032459A US 3710436D A US3710436D A US 3710436DA US 3710436 A US3710436 A US 3710436A
- Authority
- US
- United States
- Prior art keywords
- shaping
- slabs
- bar
- zone
- section
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49989—Followed by cutting or removing material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
Definitions
- ABSTRACT 5/1971 Stone et al ..l64/76 X Primary Examiner-J. Spencer Overholser Assistant Examiner-John E. Roethel Attorney-Brumbaugh, Graves, Donohue & Raymond 5 7] ABSTRACT
- the invention relates to a method for the production of plates from continuously cast slabs. Immediately after the continuously cast bar has solidified and as soon as its marginal zone has reached a mean temperature of 800 to 1000C while the core zone is still of higher temperature, a continuously cast bar is shaped in a preliminary One-step shaping process in which primarily the core zone is shaped.
- the slabs After shear ing to length, the slabs are cooled, re-heated to rolling temperature and shaped in a multi-step rolling process proper wherein essentially the marginal zones of the slabs are subjected to shaping so that finally a uniform degree of shaping is achieved over the total cross section of the slabs.
- the invention relates to a method for the production of plates from continuously cast slabs.
- rolled products show satisfactory technological characteristics'only when the cast product receives at least a fourfold, preferably at least a sixfold shaping so that the as-cast structure is destroyed and one may be certain that thematerial is transformed not only in the marginal zones but also in the core of the rolled product to obtain a uniform as-rolled structure.
- a total of a sixfold shaping may include only a threefold shaping in the core of the rolled product.
- the degree of shaping must be as high as possible because the marginal zones which are turned towards the rolls, are always shaped to a greater extent than the core zone.
- the invention is aimed at avoiding these drawbacks and difficulties and, in a method for the production of plates from continuously cast slabs, wherein these slabs are heated to rolling temperature and shaped in several steps, resides in that the cast bar prior to being shorn to length, immediately after its solidification in the continuous casting process, is shaped in one step as soon as its marginal zone has reached a mean temperature of 800 to 1000C while the core zone is still of a higher temperature, preferably of a temperature that is higher by atleast 100C.
- the core zone that is shaped, while the marginal zone remains substantially unshaped. Only later, after shearing to length, cooling, re-heating of the slabs, in the multi-step rolling process proper, the marginal zone is shaped so that finally a uniform degree of shaping is achieved over the total cross section.
- the core zone which amounts to from about one fifth to about one third of the total bar cross section is subjected to a 1.3 to 2.5 fold shaping during the one-step shaping process of the bar and the entire cross section of the continuously cast bar is reduced by 7 to percent.
- the one-step shaping process according to the invention suitably takes place by means of a customary shaping stand arranged after the secondary cooling zone of the continuous casting plant,
- the first shaping is carried out by exploiting the sensible heat of the bar. Owing to the fact that the resistance to shaping. increases with declining temperature and increases greatly at temperatures below about 900C, the core zone of a bar having a high temperature will be shaped to a greater extent than its marginal zones having relatively low temperatures; in other Words, the core zone will be shaped thoroughly while the marginal zones will hardly be shaped at all.
- the surface may be cleaned, if desired, before the slab is introduced into the pusher-type furnace where it is heated to rolling temperature.
- the multi-step second rolling process takes place in known manner on a customary train of rolls at normal rolling temperatures; i.e. the slabs to be rolled are uniformly heated. What has been described in the introduction will happen now in this second rolling process, i.e. the core zone is shaped to a lesser degree than the marginal zones. Seeing, however, that the initial thickness of the continuously cast slab was reduced by the first shaping process in the stand of rolls arranged after the continuous casting plant, the second shaping process further improves the shaped condition of the core zone or center.
- the second rolling process thus serves to equalize the different degree of shaping resulting from the first rolling process.
- An examination of the cross section of the plate shows that shaping has been effected in a highly uniform manner. Plates produced according to this method have a thickness of about 50 to 100 mm and boast improved technological characteristics although shaping has been effected only to a three or fourfold degree.
- Example 1 illustrates the shaping of a bar having an initial cross section of 210 mm which is shaped to a final cross section of 75 mm in two steps, namely in a preliminary shaping process after complete solidification of the bar and in a rolling process after heating the continuously cast slat to rolling temperature.
- the core zone received a 1.75 fold shaping in the first rolling process while the marginal zones received only a 1.08 fold shaping.
- the core zone received a 1.6 fold shaping while the marginal zones received a 2.6 fold shaping.
- the finished plate shows a uniform 2.8 fold shaping throughout its cross section.
- Example 2 illustrates the shaping of a bar whose core zone C was assumed to amount to not more than onefifth one of the entire diameter D.
- the core zone shows a 2.5 fold shaping, while the degree of shaping of the marginal zones is extremely low with 1.05.
- the marginal zones received a 2.35 fold shaping, while the core zone received only a 1.05 fold shaping.
- Example 3 illustrates the shaping of a bar whose core zone C was assumed to amount to not more than about one-fifth of the total diameter D; also, it was assumed that the entire reduction of the cross section achieved in the first rolling process amounts to only 7.5 percent.
- the core zone receives a 1.33 fold shaping in the first rolling process, while the marginal zones receive a l .03 fold shaping only.
- the marginal zones are shaped to a substantially higher degree than the core zone so that finally a plate is obtained showing in total a 2.67 fold shaping of the core zone and a 3.2 fold shaping of the marginal zone which again does not greatly deviate from the average total degree of shaping of 3.08.
- the method according to the invention makes it possible to use continuously cast slabs for the production of thick plates, whereas until now it had been necessary for this purpose to use heavy slabs having a thickness of more than 600 mm.
- a method for the production of plates from continuously cast bars comprising continuously casting a bar subjecting said bar to a one-step shaping operation when the mean temperature of the marginal zone is in the range from about 800 to 1000C, the temperature of the core zone is greater than the temperature of the marginal zone, and the core zone comprises about one-fifth to one-third of the cross section of the bar, shaping said core zone about 1.3 to 2.5 fold by said one-step shaping operation,
- the temperature of the core zone is in the range from about 800 to 1000C and the temperature of the core zone :is greater, reducing the cross section of the bar about 7 percent to 20 percent by said one-step shaping operation, shearing said bar to form individual slabs and allowing said slabs to cool, re-heating said slabs to rolling temperature, and subjecting said slabs to a rolling process to form plates.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a method for the production of plates from continuously cast slabs. Immediately after the continuously cast bar has solidified and as soon as its marginal zone has reached a mean temperature of 800* to 1000* C while the core zone is still of higher temperature, a continuously cast bar is shaped in a preliminary one-step shaping process in which primarily the core zone is shaped. After shearing to length, the slabs are cooled, re-heated to rolling temperature and shaped in a multistep rolling process proper wherein essentially the marginal zones of the slabs are subjected to shaping so that finally a uniform degree of shaping is achieved over the total cross section of the slabs. By this new method it becomes possible to produce plates with a cross section of 50 to 100 mm by using continuously cast slabs whose initial thickness does not exceed 300 mm.
Description
United States Patent 11 1 Schoffmann [451 Jan. 16, 1973 1541 METHOD FOR THE PRODUCTION OF 3,554,269 1/1911 11mm et al. 164/76 x PLATES 3,580,032
Inventor: Rudolf Scholtmann, Linz, Austria Assignee: Vereiniate Oster-reichische Eisenund Stahlwerke Aktiengesellschaft, Linz, Austria Filed: April 27, 1970 Appl. No.: 32,459
Foreign Application Priority Data May 9, 1969 Austria ..A 4444/69 References Cited UNITED STATES PATENTS Cofer et al 1 65/76 Tarmann et al. Tarmann et a1. Pearson ..29/527.7
5/1971 Stone et al ..l64/76 X Primary Examiner-J. Spencer Overholser Assistant Examiner-John E. Roethel Attorney-Brumbaugh, Graves, Donohue & Raymond 5 7] ABSTRACT The invention relates to a method for the production of plates from continuously cast slabs. Immediately after the continuously cast bar has solidified and as soon as its marginal zone has reached a mean temperature of 800 to 1000C while the core zone is still of higher temperature, a continuously cast bar is shaped in a preliminary One-step shaping process in which primarily the core zone is shaped. After shear ing to length, the slabs are cooled, re-heated to rolling temperature and shaped in a multi-step rolling process proper wherein essentially the marginal zones of the slabs are subjected to shaping so that finally a uniform degree of shaping is achieved over the total cross section of the slabs. By this new method it becomes possible to produce plates with a cross section of 50 to 100 mm by using continuously cast slabs whose initial thickness does not exceed 300 mm.
2 Claims, No Drawings METHOD FOR THE PRODUCTION OF PLATES The invention relates to a method for the production of plates from continuously cast slabs.
It is of advantage to use slabs produced according to the continuous casting method as processing material in the rolling mill because theirthickness need not even amount to about 300 mm so that substantially less shaping work is necessary when small final dimensions are produced. In order to 'fully benefit from the economic advantages of continuous casting the determination of the dimensions of the final product should be based on an initial thickness of the slabs of less than 300 mm.
It has been known that rolled products show satisfactory technological characteristics'only when the cast product receives at least a fourfold, preferably at least a sixfold shaping so that the as-cast structure is destroyed and one may be certain that thematerial is transformed not only in the marginal zones but also in the core of the rolled product to obtain a uniform as-rolled structure. When deciding the degree of shaping one has to consider that a total of a sixfold shaping may include only a threefold shaping in the core of the rolled product. In other words, the degree of shaping must be as high as possible because the marginal zones which are turned towards the rolls, are always shaped to a greater extent than the core zone.
When using continuously cast slabs having an initial cross section of about 200 to 300 mm and if a six fold shaping is desired, it will, in general, be possible only to produce plates with a final thickness of about 35 to 50 mm. It is very difficult to produce from continuously cast slabs plates of more than 50 mm, for example of up to about 100 mm, with satisfactory quality. If the normal rolling technique were employed such plates would be insufficiently shaped in the core and thus the mechanical properties would be wanting both in longitudinal and transverse direction.
The invention is aimed at avoiding these drawbacks and difficulties and, in a method for the production of plates from continuously cast slabs, wherein these slabs are heated to rolling temperature and shaped in several steps, resides in that the cast bar prior to being shorn to length, immediately after its solidification in the continuous casting process, is shaped in one step as soon as its marginal zone has reached a mean temperature of 800 to 1000C while the core zone is still of a higher temperature, preferably of a temperature that is higher by atleast 100C.
In this one-step preliminary shaping process it is primarily the core zone that is shaped, while the marginal zone remains substantially unshaped. Only later, after shearing to length, cooling, re-heating of the slabs, in the multi-step rolling process proper, the marginal zone is shaped so that finally a uniform degree of shaping is achieved over the total cross section. Preferably the core zone which amounts to from about one fifth to about one third of the total bar cross section is subjected to a 1.3 to 2.5 fold shaping during the one-step shaping process of the bar and the entire cross section of the continuously cast bar is reduced by 7 to percent.
The one-step shaping process according to the invention suitably takes place by means of a customary shaping stand arranged after the secondary cooling zone of the continuous casting plant, Thus, the first shaping is carried out by exploiting the sensible heat of the bar. Owing to the fact that the resistance to shaping. increases with declining temperature and increases greatly at temperatures below about 900C, the core zone of a bar having a high temperature will be shaped to a greater extent than its marginal zones having relatively low temperatures; in other Words, the core zone will be shaped thoroughly while the marginal zones will hardly be shaped at all. After this first shaping process the surface may be cleaned, if desired, before the slab is introduced into the pusher-type furnace where it is heated to rolling temperature.
The multi-step second rolling process takes place in known manner on a customary train of rolls at normal rolling temperatures; i.e. the slabs to be rolled are uniformly heated. What has been described in the introduction will happen now in this second rolling process, i.e. the core zone is shaped to a lesser degree than the marginal zones. Seeing, however, that the initial thickness of the continuously cast slab was reduced by the first shaping process in the stand of rolls arranged after the continuous casting plant, the second shaping process further improves the shaped condition of the core zone or center. The second rolling process thus serves to equalize the different degree of shaping resulting from the first rolling process. An examination of the cross section of the plate shows that shaping has been effected in a highly uniform manner. Plates produced according to this method have a thickness of about 50 to 100 mm and boast improved technological characteristics although shaping has been effected only to a three or fourfold degree.
It has already been proposed to cast and roll continuously. Thus, a continuous furnace, a descaling device and a Sendzimir-rolling stand together with all necessary post-positioned rolling mill devices have been provided immediately succeeding a continuous casting plant in order to produce sheets directly from the cast bar. However, this process is not suitable for the production of thick plates; nor would a direct and onestep shaping process amount to any progress over the art, i.e. the core would still be shaped to a lesser degree than the marginal zone.
According to another proposal tending to improve the quality of cast bars the bar is shaped before it has solidified completely, i.e. when it has still a liquid core. This process, however, is suitable only for billets.
The method according to the invention is illustrated by the following examples:
Example 1 illustrates the shaping of a bar having an initial cross section of 210 mm which is shaped to a final cross section of 75 mm in two steps, namely in a preliminary shaping process after complete solidification of the bar and in a rolling process after heating the continuously cast slat to rolling temperature.
marginal zone core zone M= mm C=70 mm (=l9% reduction of cross section) cross section after the second rolling process D"=75 mm M"+C"+M"=D" M"=25 mm C"=25 mm Shaping of the M'/M"=2,6 C'/C"=1 ,6 individual zones total degree of shaping M/M"=2,8 C/C"=2 in the first and second rolling process Example 2 illustrates the shaping of a bar with an initial cross section of 250 mm, which, as described in Example 1, is first subjected to a preliminary shaping process, whereupon the continuously cast slab is heated to rolling temperature and then secondary shaping is effected in a rolling process; the final cross section amounts to 100 mm marginal zone core zone initial cross section D=250 mrn M+C+M=D cross section after the first rolling process D'=2 10 mm M+C'+M'=D shaping of the individual zones mean degree of shaping in the first rolling process M=l00 mm C=50 mrn (=16 reduction of cross section) cross section after the second rolling process D"=l00 mm u u iv n shaping of the individual zones mean degree of shaping in the second rolling process total degree of shaping in the first and second rolling process means degree of total shaping in the first and second shaping processes Example 3 illustrates the reduction of a bar with an initial cross section of 200 mm to a final cross section of 65 mm marginal zone M core 20l1 initial cross section D=200 mm M+C+M=D cross section after the first rolling process D'=l85 mm M'+C'+M=D' shaping of the individual zones mean degree of shaping in the first rolling M=80 mm C=40 mm The data given in the Examples are based on simplified assumptions: The cross section of the bar or of the slab respectively is regarded to be composed of three parts, and each of the three zones (marginal, core, marginal zone) is assumed to be shaped independently of the others. Obviously, this will not happen in actual practice; rather, there will be a gradual transition from one zone to the other.
As becomes obvious from Example 1, the core zone received a 1.75 fold shaping in the first rolling process while the marginal zones received only a 1.08 fold shaping. In the second rolling process it is the other way round: the core zone received a 1.6 fold shaping while the marginal zones received a 2.6 fold shaping. Finally, however, the finished plate shows a uniform 2.8 fold shaping throughout its cross section.
Example 2 illustrates the shaping of a bar whose core zone C was assumed to amount to not more than onefifth one of the entire diameter D. After the first shaping process the core zone shows a 2.5 fold shaping, while the degree of shaping of the marginal zones is extremely low with 1.05. In the second shaping process the marginal zones received a 2.35 fold shaping, while the core zone received only a 1.05 fold shaping. The
plate finally has a degree of core shaping of 2.63 as compared to a marginal zone shaping degree of 2.47, which equally does not represent a great deviation from the average 2.5 fold total shaping; this plate, too, has excellent technological properties.
Example 3 illustrates the shaping of a bar whose core zone C was assumed to amount to not more than about one-fifth of the total diameter D; also, it was assumed that the entire reduction of the cross section achieved in the first rolling process amounts to only 7.5 percent. The core zone receives a 1.33 fold shaping in the first rolling process, while the marginal zones receive a l .03 fold shaping only. In the second rolling process the marginal zones are shaped to a substantially higher degree than the core zone so that finally a plate is obtained showing in total a 2.67 fold shaping of the core zone and a 3.2 fold shaping of the marginal zone which again does not greatly deviate from the average total degree of shaping of 3.08. This shows that already at a relatively lower degree of total shaping in the first rolling process a considerable improvement in the quality of the plates is afforded by the method according to the invention as compared to plates manufactured according to the conventional rolling technology.
The method according to the invention makes it possible to use continuously cast slabs for the production of thick plates, whereas until now it had been necessary for this purpose to use heavy slabs having a thickness of more than 600 mm.
What I claim is: 1. A method for the production of plates from continuously cast bars comprising continuously casting a bar subjecting said bar to a one-step shaping operation when the mean temperature of the marginal zone is in the range from about 800 to 1000C, the temperature of the core zone is greater than the temperature of the marginal zone, and the core zone comprises about one-fifth to one-third of the cross section of the bar, shaping said core zone about 1.3 to 2.5 fold by said one-step shaping operation,
is in the range from about 800 to 1000C and the temperature of the core zone :is greater, reducing the cross section of the bar about 7 percent to 20 percent by said one-step shaping operation, shearing said bar to form individual slabs and allowing said slabs to cool, re-heating said slabs to rolling temperature, and subjecting said slabs to a rolling process to form plates.
Claims (2)
1. A method for the production of plates from continuously cast bars comprising continuously casting a bar subjecting said bar to a one-step shaping operation when the mean temperature of the marginal zone is in the range from about 800* to 1000*C, the temperature of the core zone is greater than the temperature of the marginal zone, and the core zone comprises about one-fifth to one-third of the cross section of the bar, shaping said core zone about 1.3 to 2.5 fold by said one-step shaping operation, shearing said bar to form individual slabs and allowing said slabs to cool, re-heating said slabs to rolling temperature, and subjecting said slabs to a rolling process to form plates.
2. A method for the production of plates from continuously cast bars comprising continuously casting a bar subjecting said bar to a one-step shaping operation when the mean temperature of the marginal zone is in the range from about 800* to 1000*C and the temperature of the core zone iS greater, reducing the cross section of the bar about 7 percent to 20 percent by said one-step shaping operation, shearing said bar to form individual slabs and allowing said slabs to cool, re-heating said slabs to rolling temperature, and subjecting said slabs to a rolling process to form plates.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT444469A AT291898B (en) | 1969-05-09 | 1969-05-09 | Process for machining a cast steel strand |
Publications (1)
Publication Number | Publication Date |
---|---|
US3710436A true US3710436A (en) | 1973-01-16 |
Family
ID=3564094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00032459A Expired - Lifetime US3710436A (en) | 1969-05-09 | 1970-04-27 | Method for the production of plates |
Country Status (12)
Country | Link |
---|---|
US (1) | US3710436A (en) |
AT (1) | AT291898B (en) |
BE (1) | BE750119A (en) |
CA (1) | CA939173A (en) |
CH (1) | CH504258A (en) |
CS (1) | CS155239B2 (en) |
DE (1) | DE2019700A1 (en) |
ES (1) | ES379080A1 (en) |
FR (1) | FR2046435A5 (en) |
GB (1) | GB1307562A (en) |
SE (1) | SE371944B (en) |
SU (1) | SU401036A3 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4170815A (en) * | 1977-05-23 | 1979-10-16 | Chugairo Kogyo Kaisha Ltd. | Method of operating a reheating furnace in hot rolling line |
US4352697A (en) * | 1979-10-01 | 1982-10-05 | Southwire Company | Method of hot-forming metals prone to crack during rolling |
US4422884A (en) * | 1977-10-20 | 1983-12-27 | Concast Ag | Method of treating a continuously cast strand formed of stainless steel |
US6158498A (en) * | 1997-10-21 | 2000-12-12 | Wagstaff, Inc. | Casting of molten metal in an open ended mold cavity |
US20090056906A1 (en) * | 2005-07-19 | 2009-03-05 | Giovanni Arvedi | Process and Related Plant for Manufacturing Steel Long Products Without Interruption |
US20090159234A1 (en) * | 2005-07-19 | 2009-06-25 | Giovanni Arvedi | Process and Plant for Manufacturing Steel Plates Without Interruption |
CN104475447A (en) * | 2014-10-21 | 2015-04-01 | 山东钢铁股份有限公司 | Ocean platform pile leg steel raw material rolling method |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2545935C2 (en) * | 1975-10-14 | 1984-04-26 | Mannesmann AG, 4000 Düsseldorf | Method and rolling mill for rolling a slab, preferably a continuously cast slab, into a billet with a square or approximately square cross-section |
LU83262A1 (en) * | 1981-03-27 | 1983-02-22 | Huwaert Leo Cloostermans | PROCESS AND INSTALLATION FOR THE MANUFACTURE OF AN ELONGATED ALUMINUM PRODUCT |
JPS581012A (en) * | 1981-06-25 | 1983-01-06 | Nippon Steel Corp | Production of homogeneous steel |
EP0105368B1 (en) * | 1982-02-04 | 1988-06-01 | Southwire Company | Method of hot-forming metals prone to crack during rolling |
DE3803592A1 (en) * | 1988-02-06 | 1989-08-17 | Schloemann Siemag Ag | METHOD AND PLANT FOR ROLLING TUBES PRESENTED ON A BELT CASTING PLANT |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3317994A (en) * | 1964-08-19 | 1967-05-09 | Southwire Co | Method of conditioning metal for hot forming |
US3416222A (en) * | 1964-05-05 | 1968-12-17 | British Iron Steel Research | Manufacture of elongate articles |
US3491823A (en) * | 1966-04-22 | 1970-01-27 | Boehler & Co Ag Geb | Process for the manufacture of continuous castings |
US3491824A (en) * | 1966-12-06 | 1970-01-27 | Boehler & Co Ag Geb | Process of producing rolled stock from a high-melting metal by continuous casting and rolling operations |
US3554269A (en) * | 1969-08-21 | 1971-01-12 | Demag Ag | Method of deforming and straightening a curved continuous casting strand |
US3580032A (en) * | 1969-04-17 | 1971-05-25 | United Eng Foundry Co | Apparatus for reducing the width of metallic slabs |
-
1969
- 1969-05-09 AT AT444469A patent/AT291898B/en not_active IP Right Cessation
-
1970
- 1970-04-13 SE SE7004990A patent/SE371944B/xx unknown
- 1970-04-23 DE DE19702019700 patent/DE2019700A1/en active Pending
- 1970-04-23 FR FR7014871A patent/FR2046435A5/fr not_active Expired
- 1970-04-27 US US00032459A patent/US3710436A/en not_active Expired - Lifetime
- 1970-04-27 ES ES379080A patent/ES379080A1/en not_active Expired
- 1970-04-30 SU SU1433635A patent/SU401036A3/ru active
- 1970-05-06 CH CH677870A patent/CH504258A/en not_active IP Right Cessation
- 1970-05-08 GB GB2243170A patent/GB1307562A/en not_active Expired
- 1970-05-08 CA CA082,248A patent/CA939173A/en not_active Expired
- 1970-05-08 BE BE750119D patent/BE750119A/en unknown
- 1970-05-08 CS CS321570A patent/CS155239B2/cs unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3416222A (en) * | 1964-05-05 | 1968-12-17 | British Iron Steel Research | Manufacture of elongate articles |
US3317994A (en) * | 1964-08-19 | 1967-05-09 | Southwire Co | Method of conditioning metal for hot forming |
US3491823A (en) * | 1966-04-22 | 1970-01-27 | Boehler & Co Ag Geb | Process for the manufacture of continuous castings |
US3491824A (en) * | 1966-12-06 | 1970-01-27 | Boehler & Co Ag Geb | Process of producing rolled stock from a high-melting metal by continuous casting and rolling operations |
US3580032A (en) * | 1969-04-17 | 1971-05-25 | United Eng Foundry Co | Apparatus for reducing the width of metallic slabs |
US3554269A (en) * | 1969-08-21 | 1971-01-12 | Demag Ag | Method of deforming and straightening a curved continuous casting strand |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4170815A (en) * | 1977-05-23 | 1979-10-16 | Chugairo Kogyo Kaisha Ltd. | Method of operating a reheating furnace in hot rolling line |
US4422884A (en) * | 1977-10-20 | 1983-12-27 | Concast Ag | Method of treating a continuously cast strand formed of stainless steel |
US4352697A (en) * | 1979-10-01 | 1982-10-05 | Southwire Company | Method of hot-forming metals prone to crack during rolling |
US6158498A (en) * | 1997-10-21 | 2000-12-12 | Wagstaff, Inc. | Casting of molten metal in an open ended mold cavity |
US6260602B1 (en) | 1997-10-21 | 2001-07-17 | Wagstaff, Inc. | Casting of molten metal in an open ended mold cavity |
US20090056906A1 (en) * | 2005-07-19 | 2009-03-05 | Giovanni Arvedi | Process and Related Plant for Manufacturing Steel Long Products Without Interruption |
US20090159234A1 (en) * | 2005-07-19 | 2009-06-25 | Giovanni Arvedi | Process and Plant for Manufacturing Steel Plates Without Interruption |
US7967056B2 (en) | 2005-07-19 | 2011-06-28 | Giovanni Arvedi | Process and related plant for manufacturing steel long products without interruption |
CN101193712B (en) * | 2005-07-19 | 2012-02-22 | 乔瓦尼·阿尔韦迪 | Method and device for manufacturing steel plate without interruption |
US8162032B2 (en) | 2005-07-19 | 2012-04-24 | Giovanni Arvedi | Process and plant for manufacturing steel plates without interruption |
CN104475447A (en) * | 2014-10-21 | 2015-04-01 | 山东钢铁股份有限公司 | Ocean platform pile leg steel raw material rolling method |
Also Published As
Publication number | Publication date |
---|---|
BE750119A (en) | 1970-10-16 |
ES379080A1 (en) | 1972-09-01 |
SU401036A3 (en) | 1973-10-01 |
SE371944B (en) | 1974-12-09 |
CH504258A (en) | 1971-03-15 |
AT291898B (en) | 1971-08-10 |
GB1307562A (en) | 1973-02-21 |
CA939173A (en) | 1974-01-01 |
DE2019700A1 (en) | 1970-11-19 |
FR2046435A5 (en) | 1971-03-05 |
CS155239B2 (en) | 1974-05-30 |
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