CA2049781A1 - Internally cooled roll having a copper sheath - Google Patents
Internally cooled roll having a copper sheathInfo
- Publication number
- CA2049781A1 CA2049781A1 CA002049781A CA2049781A CA2049781A1 CA 2049781 A1 CA2049781 A1 CA 2049781A1 CA 002049781 A CA002049781 A CA 002049781A CA 2049781 A CA2049781 A CA 2049781A CA 2049781 A1 CA2049781 A1 CA 2049781A1
- Authority
- CA
- Canada
- Prior art keywords
- shell
- core
- internally cooled
- roll
- cooled roll
- 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
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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Rolls And Other Rotary Bodies (AREA)
- General Induction Heating (AREA)
Abstract
ABSTRACT
An internally cooled roll, of the type used in a continuous casting plant, such as support and guide rolls, having a shell which is attached to and surrounds a core of iron material. To obtain a dimensionally stable roll with internal cooling an high heat conductivity which at the same time is of simple construction, the shell of the roll is composed of copper or a copper alloy.
N:3245-93.PAT
An internally cooled roll, of the type used in a continuous casting plant, such as support and guide rolls, having a shell which is attached to and surrounds a core of iron material. To obtain a dimensionally stable roll with internal cooling an high heat conductivity which at the same time is of simple construction, the shell of the roll is composed of copper or a copper alloy.
N:3245-93.PAT
Description
` q I ~ n ~7 2~ 1 . ' '. d ~ 1 1 F ~ I P n 1 ~ T ~ n ~
~0~197 FllE~ 0~ llIE INV~3NTIC)N
The prescnt invention relates lo an internally cooled roll wherein ~he core is co~nposed Of ~ ul~ up~x:r or a wpper alloy so as [o Incre~se heal conducti~rity between a bar and the surf~ce of a roll.
` q l ~1 2 . 1 1 ~ O I 5 1 2 1 r l 2 ~4 8 - C OHE~I PO~ITR~ 6 )'7 BA~C~KGRO~ OF ~lE INYEN'I'ION
The present invcntion relales to an int~rnally cooled roll, of lhe ~ype usec-i in a continuolls c~9ting plant, such as supyort and guide ~ollers, havin~ 2~ shell which surrounds ~nd is attached to ~ ~or~ ~f ilon material.
]t has been a ~oal in continuous castin~, in additiQn to increasing the casting rate, to dispense with se~ondary eoolillg by spray water of ~n emerging bar, as well as all the inherent disatlvMta~es tl1erein (i.e., ~ge cracks). One proposal along these lines is referenced in paîent 1~ 20 972 from the Pederal Republic of ~erm~ny. The patent relates to a device for the indirect coolin~ of an emergin~ bar frorn ~ continuous castillg Inold~ e bar is cooled an(l guidecl vla resiliently appl;eci coolant-wettecl sli~ie shoes and ~uide rolls. Tlle slid~ shoes and g~lide rolls are ar~anged alte~lately one behind lh~ other in the directiQIl of cas~ . Tb~ obJect Or tlle guide rolls ig tQ level the surface of lhe bar after passage throug~h ~he zones h~v;ng slide shoes.
}lowever, the derormation of the outsid~ of lhe bar, wh;ch is inherent thereill, leads tP
segregations and internal cracks upon the casting of sla~ sections~
From yel anolher paten~, namely patellt 3~ 31 433 C2 from the Pederal Republic of Germany, an internally cooled support and/or pinch roll is disclosed. The pinch roll consists of A stcel core Md a jacket of sleel ~hich surrounds the core and which ig attached to il. On the surf~ce of the corc there is provided a cool~nl ch~lnel which i9 connected wilh coolant cvnnections conta~lled ill journals of lhe core. The jacket is weld~ to the arms of lhe core which remains between the coolant channels over the cntire length of lheir mu~ual contac~
~urhcc. ~hc wclding of thc j~c};ct and the corc t~ cach olhc:r ovcr their entire surfac~ ~f conlacl N~ 45-93.~T
~0~197 FllE~ 0~ llIE INV~3NTIC)N
The prescnt invention relates lo an internally cooled roll wherein ~he core is co~nposed Of ~ ul~ up~x:r or a wpper alloy so as [o Incre~se heal conducti~rity between a bar and the surf~ce of a roll.
` q l ~1 2 . 1 1 ~ O I 5 1 2 1 r l 2 ~4 8 - C OHE~I PO~ITR~ 6 )'7 BA~C~KGRO~ OF ~lE INYEN'I'ION
The present invcntion relales to an int~rnally cooled roll, of lhe ~ype usec-i in a continuolls c~9ting plant, such as supyort and guide ~ollers, havin~ 2~ shell which surrounds ~nd is attached to ~ ~or~ ~f ilon material.
]t has been a ~oal in continuous castin~, in additiQn to increasing the casting rate, to dispense with se~ondary eoolillg by spray water of ~n emerging bar, as well as all the inherent disatlvMta~es tl1erein (i.e., ~ge cracks). One proposal along these lines is referenced in paîent 1~ 20 972 from the Pederal Republic of ~erm~ny. The patent relates to a device for the indirect coolin~ of an emergin~ bar frorn ~ continuous castillg Inold~ e bar is cooled an(l guidecl vla resiliently appl;eci coolant-wettecl sli~ie shoes and ~uide rolls. Tlle slid~ shoes and g~lide rolls are ar~anged alte~lately one behind lh~ other in the directiQIl of cas~ . Tb~ obJect Or tlle guide rolls ig tQ level the surface of lhe bar after passage throug~h ~he zones h~v;ng slide shoes.
}lowever, the derormation of the outsid~ of lhe bar, wh;ch is inherent thereill, leads tP
segregations and internal cracks upon the casting of sla~ sections~
From yel anolher paten~, namely patellt 3~ 31 433 C2 from the Pederal Republic of Germany, an internally cooled support and/or pinch roll is disclosed. The pinch roll consists of A stcel core Md a jacket of sleel ~hich surrounds the core and which ig attached to il. On the surf~ce of the corc there is provided a cool~nl ch~lnel which i9 connected wilh coolant cvnnections conta~lled ill journals of lhe core. The jacket is weld~ to the arms of lhe core which remains between the coolant channels over the cntire length of lheir mu~ual contac~
~urhcc. ~hc wclding of thc j~c};ct and the corc t~ cach olhc:r ovcr their entire surfac~ ~f conlacl N~ 45-93.~T
2 ~ 2 ~ 7 ~ II E N p ~l N T R II I ~ 7 4~'78~.
reslllts in a roll o~ st~ble shape. As a result, Ihe roll diameter ~nd ~he distance between ~he individunl rolls when pl~c~t one behind the oliler can be simul~aneously ~ ced. Moreover, kul~ing of the bar c~ also b~ redllcecl. :Howevcr, w;th tllc re~luclion in th~ di~m~.~er, the.
useable heat exchan~e surf.tce of the roll which is in linear contact wilh t1~e bnr i9 also redu~¢d, Ulldc~ these circumst~nces an~ in eombinatioll with the poor ile~t collductlvity of the sleel jackcl, dispensing with secondary coolin~ requires a reduction ;n ~he casting rate, ~ urthermol~e, since t~le roll~ are sul~jected to a large amount of wear by ~he bar, rega~dless of whether the bar is pllllecl ~elween the rolls or is conveyecl by driven rolls, it has beell attempt~d ~o use materials ~or the shell of the rolls whicll ~re as resis~t to wear as possible, Prlor arl, n~tnely Stahl an~l ~isen, ~ (8~ o~ 22, ~a~e 117~ sllows tllat, f~r exan~ple, 21 Cr Mo V S l l was ~onsidered a par~lculMly advan~a~eous material for lhc corc of con~int~ous ~sling rolls whi~e stccl with a 12 ~o 15% chromium ~onlent was COllSiti~l`ed particularly advantng~ous for use as a wcar t~nd corrosion resist~nt coaîinX for the rolls~
N:3245.5~3.PAT -3-æ , 2 1 2 9 7 2 5 1~, C O H E ~I P O II T Q ~I I q ~
g'7~3L
SU~E~Y OF ~IE INVlE~TON
An object of the present invention is to provide a dimensioll~lly stable roll with internal cooling and high heat conductivity which, a~ the same lilne, is of simple construcliol~.
This object is achieved in the case of an inlernally cooled roll in an extr~Jsion casting plant by producing a shell compose~ of a n~e~al comprising of copper or copper alloys.
In accordance with the in-~ention, the us¢ of copper of coppcr alloys for the shell as a heat-exch~n~e wall be~ween coolant and bar resul~s in a roll having high heat con~uctivity.
Due to the high heat conductivity of the copper shell, the heat to bc 1~1 away from the bar is dislributed over the circumference of the shell, The r;ldial ~emperalllr~ proflle in lhe sllell is more uniform Rnd, there~ore, the thermal cxpansion stresses and thus th~ heat alternatin~ stresses per revolutlon are slight as comp.lred with a shell uf steel uf ~ow therlnal c onductivity~ As a res~lll of less thermal stress, the roll, despite pc>orer s~ren~th v~}ues of thc shell, is dlmensionally stable~ Accordlngly, the bar is not subjected to any detrimental deformation by eccentrically rotatin~ roller~ as a result of ~lis~ortion occurring during opera~ion. Furthermore, due lo lhe dimensional stability, the roll can be n~ade witll a relatively small dia(ncter. ~s a result of the small diameter, a r~lction in the spacing Qf the rolls one behind the other in the diroction of travel ~f the bar is possible, so as ~o oplimi~e lhe gllidance Or ~he ~ar. Allhough Ihe heal exchange surf~ce ~etween the roll and the bar is reduced by lhe ~educlion in ~he diame~er, secondary cooling can be dispensed wilh, wish lhe roll Or lhe presen~ invenLion, even in the case of slab sections, as a result of the hi~h thermal cond~lctivi~y of the shell which consists of c~pper or a copper alloy. I~olls, in accord~nce with paten~ 32 31 433 C2 ~rom the Federal Republic N:32J5 9~.P~T -4-0 6 ~ 1 2 ~, 2 5 4 9, I` Q H E II P CI ~I T R ll l Q p ;~:1[)4L9~7~3~
of C;erlllany previously menlioned, have a solidincalion Çac~or of about 24.6 mm/millS WittlUUt sp~y water and 26.4 mm/minU5 with spray water In compar~son, Witll the roll of the present inven~ion, these values are incre~ased to at least 26.0 mrm/mill~S without spray ~vater and to 28.0mm/min~ 5 wilh spr~y w~ter. ~ue ~o ~he po~sibili~y of hi&her castin~ speuls, an incrc519c in lhe capacil~ of the plant are realized.
Furthermore, because of its high thermal conductivity, a roll in accordance with the present lnvention does not become as st~ongly heated as rolls having a steel shel~ This leads to a reduction in the susceptibility to heat cracks, an increase in the resistancc to wear, and a reaiuctioll in the dan~er o.f melting the ~oll shell togethel with molten mate~al in the event of bar l)reak-out. Purthermo~e, ~le roll i~ part3cll1a~1y t^eslst~n~ lo corroslon, especi~lly ill the region of the foot roll and jn an oven directly acljacent to support an(l &uide rolls, where corro~lve casling slags h~ combin~ion with spray wa~er ~re present~
The n~t~chment between the core and the ~acket whieh Is cicveloped as a snug ~It, for e~atnple~ particularly~ as a shrtnk attachment, represents a slrucluraily simple solution. In addition, there is the addcd advant~e that liftin~ of the sllell from the care due to thelltlal expansion during ope~tion does n~t take place in view of the hi~h ~hermal conductivity of the shell. In thls manner, a means for dependably gui~lin~ c coolant in the ch~nnels without leakage is obtained. Furlhermore, th~ shell/core connectioll makes it p~ssible ~o at~ach ~he she]l to lhe core o~lly at one edge, such as by a wGld connection. It is, of ~ou~e, AISO possible to weld the shell to the core on bot~l edges~
N:3U5-93.PAT 5 2 ~ !; 1 2 1 2 ~ 7 2 5 4 ~ 7 ~ ~ H E N P tl l l T R ~ 3 ;~ 7 F I~ESCRIlPT~C:)N OF TlIE D~AYVING
The invention will be explnined below wi~h refi~rence to ~he drawing, in wllich FIG. I s~ows a lol~gitudin~l ~w~ion ~hrou~h ~ roll wi~h a helical cool~nt cllannel.
N:3245-9~.PAT -6-;S I ~ I 2 ~, 2 5 413 ~ C l:l H E II P Q II T I~
i78~1.
I)ETAILED DESCR~PrION
OF TI~E P~I3NTLY rI~EFEI~lED E~C);~)II\~ENT
The roll as s71own in Fla. I consisl~s essenti~ily of æ. c~re I of iron ma~erial and a shell ~ of a copp~r or coppcr alloy surroundin~ Ille co~c 1. Tlle shell 2 is connccted wilh lhc core 1 by a snug fit, such as a shrink att~chment. ~urthermore, the shell 2 is fastened to the core I at le~st at one ecige ~ by a wcld connec~ion 4. Of coursel other nlanners of attachment are possible, I`or instanee via screweci stops. A sin~le or multiple thread or flighted coolant ~hannel S in the form of i~ llelical grooYe in ~he longitudln~ ion 1, of thc core I is ~vorke~l inlo ~he~ sur~ace of thc core 1. The ~ool~u~t ~hannel 5 is covered by the cylintiric~ll shell 2.
Within the re~ion of the eclges ~3 of thG shell 2, th~ cOOl~llt channel 5 is connect~i to Coo].~lt connections 7 by a .radially extendillg holcs ~ The coolant conneclions 7 ar~ arr~nged con~enlnca11y in the core 1 nnd adjoining journals 8. The diamelef of the roll is desi~nated ~
and is within the range of abo~lt 80 - 400mm. Thc wa.ll thickn~ss of the shell d is at le~st aboul 5mm and increases up to about 7ûmm in lhe case of rolls of lar~e diarneter.
Thc ;n~ention has ~een described, with ref~rence to a roll having a helic~l coolant channel but it can ~Iso be used in rolls having other configurations ior the coolant chanllels (for inst~lce, radially ~r axially extending channels, channels formed aS grooves in the shell, or worked partiaily in the shell and partially in the co~.) It should be understood that the prererre~i embodin~ent considcred is for illustrative purposes only and is not ~o be constmed as limi~ing ~he scope of tile pres~nt in~ention which Is properly delineated only in the appended claims.
N~3245.~,~T -7-;
reslllts in a roll o~ st~ble shape. As a result, Ihe roll diameter ~nd ~he distance between ~he individunl rolls when pl~c~t one behind the oliler can be simul~aneously ~ ced. Moreover, kul~ing of the bar c~ also b~ redllcecl. :Howevcr, w;th tllc re~luclion in th~ di~m~.~er, the.
useable heat exchan~e surf.tce of the roll which is in linear contact wilh t1~e bnr i9 also redu~¢d, Ulldc~ these circumst~nces an~ in eombinatioll with the poor ile~t collductlvity of the sleel jackcl, dispensing with secondary coolin~ requires a reduction ;n ~he casting rate, ~ urthermol~e, since t~le roll~ are sul~jected to a large amount of wear by ~he bar, rega~dless of whether the bar is pllllecl ~elween the rolls or is conveyecl by driven rolls, it has beell attempt~d ~o use materials ~or the shell of the rolls whicll ~re as resis~t to wear as possible, Prlor arl, n~tnely Stahl an~l ~isen, ~ (8~ o~ 22, ~a~e 117~ sllows tllat, f~r exan~ple, 21 Cr Mo V S l l was ~onsidered a par~lculMly advan~a~eous material for lhc corc of con~int~ous ~sling rolls whi~e stccl with a 12 ~o 15% chromium ~onlent was COllSiti~l`ed particularly advantng~ous for use as a wcar t~nd corrosion resist~nt coaîinX for the rolls~
N:3245.5~3.PAT -3-æ , 2 1 2 9 7 2 5 1~, C O H E ~I P O II T Q ~I I q ~
g'7~3L
SU~E~Y OF ~IE INVlE~TON
An object of the present invention is to provide a dimensioll~lly stable roll with internal cooling and high heat conductivity which, a~ the same lilne, is of simple construcliol~.
This object is achieved in the case of an inlernally cooled roll in an extr~Jsion casting plant by producing a shell compose~ of a n~e~al comprising of copper or copper alloys.
In accordance with the in-~ention, the us¢ of copper of coppcr alloys for the shell as a heat-exch~n~e wall be~ween coolant and bar resul~s in a roll having high heat con~uctivity.
Due to the high heat conductivity of the copper shell, the heat to bc 1~1 away from the bar is dislributed over the circumference of the shell, The r;ldial ~emperalllr~ proflle in lhe sllell is more uniform Rnd, there~ore, the thermal cxpansion stresses and thus th~ heat alternatin~ stresses per revolutlon are slight as comp.lred with a shell uf steel uf ~ow therlnal c onductivity~ As a res~lll of less thermal stress, the roll, despite pc>orer s~ren~th v~}ues of thc shell, is dlmensionally stable~ Accordlngly, the bar is not subjected to any detrimental deformation by eccentrically rotatin~ roller~ as a result of ~lis~ortion occurring during opera~ion. Furthermore, due lo lhe dimensional stability, the roll can be n~ade witll a relatively small dia(ncter. ~s a result of the small diameter, a r~lction in the spacing Qf the rolls one behind the other in the diroction of travel ~f the bar is possible, so as ~o oplimi~e lhe gllidance Or ~he ~ar. Allhough Ihe heal exchange surf~ce ~etween the roll and the bar is reduced by lhe ~educlion in ~he diame~er, secondary cooling can be dispensed wilh, wish lhe roll Or lhe presen~ invenLion, even in the case of slab sections, as a result of the hi~h thermal cond~lctivi~y of the shell which consists of c~pper or a copper alloy. I~olls, in accord~nce with paten~ 32 31 433 C2 ~rom the Federal Republic N:32J5 9~.P~T -4-0 6 ~ 1 2 ~, 2 5 4 9, I` Q H E II P CI ~I T R ll l Q p ;~:1[)4L9~7~3~
of C;erlllany previously menlioned, have a solidincalion Çac~or of about 24.6 mm/millS WittlUUt sp~y water and 26.4 mm/minU5 with spray water In compar~son, Witll the roll of the present inven~ion, these values are incre~ased to at least 26.0 mrm/mill~S without spray ~vater and to 28.0mm/min~ 5 wilh spr~y w~ter. ~ue ~o ~he po~sibili~y of hi&her castin~ speuls, an incrc519c in lhe capacil~ of the plant are realized.
Furthermore, because of its high thermal conductivity, a roll in accordance with the present lnvention does not become as st~ongly heated as rolls having a steel shel~ This leads to a reduction in the susceptibility to heat cracks, an increase in the resistancc to wear, and a reaiuctioll in the dan~er o.f melting the ~oll shell togethel with molten mate~al in the event of bar l)reak-out. Purthermo~e, ~le roll i~ part3cll1a~1y t^eslst~n~ lo corroslon, especi~lly ill the region of the foot roll and jn an oven directly acljacent to support an(l &uide rolls, where corro~lve casling slags h~ combin~ion with spray wa~er ~re present~
The n~t~chment between the core and the ~acket whieh Is cicveloped as a snug ~It, for e~atnple~ particularly~ as a shrtnk attachment, represents a slrucluraily simple solution. In addition, there is the addcd advant~e that liftin~ of the sllell from the care due to thelltlal expansion during ope~tion does n~t take place in view of the hi~h ~hermal conductivity of the shell. In thls manner, a means for dependably gui~lin~ c coolant in the ch~nnels without leakage is obtained. Furlhermore, th~ shell/core connectioll makes it p~ssible ~o at~ach ~he she]l to lhe core o~lly at one edge, such as by a wGld connection. It is, of ~ou~e, AISO possible to weld the shell to the core on bot~l edges~
N:3U5-93.PAT 5 2 ~ !; 1 2 1 2 ~ 7 2 5 4 ~ 7 ~ ~ H E N P tl l l T R ~ 3 ;~ 7 F I~ESCRIlPT~C:)N OF TlIE D~AYVING
The invention will be explnined below wi~h refi~rence to ~he drawing, in wllich FIG. I s~ows a lol~gitudin~l ~w~ion ~hrou~h ~ roll wi~h a helical cool~nt cllannel.
N:3245-9~.PAT -6-;S I ~ I 2 ~, 2 5 413 ~ C l:l H E II P Q II T I~
i78~1.
I)ETAILED DESCR~PrION
OF TI~E P~I3NTLY rI~EFEI~lED E~C);~)II\~ENT
The roll as s71own in Fla. I consisl~s essenti~ily of æ. c~re I of iron ma~erial and a shell ~ of a copp~r or coppcr alloy surroundin~ Ille co~c 1. Tlle shell 2 is connccted wilh lhc core 1 by a snug fit, such as a shrink att~chment. ~urthermore, the shell 2 is fastened to the core I at le~st at one ecige ~ by a wcld connec~ion 4. Of coursel other nlanners of attachment are possible, I`or instanee via screweci stops. A sin~le or multiple thread or flighted coolant ~hannel S in the form of i~ llelical grooYe in ~he longitudln~ ion 1, of thc core I is ~vorke~l inlo ~he~ sur~ace of thc core 1. The ~ool~u~t ~hannel 5 is covered by the cylintiric~ll shell 2.
Within the re~ion of the eclges ~3 of thG shell 2, th~ cOOl~llt channel 5 is connect~i to Coo].~lt connections 7 by a .radially extendillg holcs ~ The coolant conneclions 7 ar~ arr~nged con~enlnca11y in the core 1 nnd adjoining journals 8. The diamelef of the roll is desi~nated ~
and is within the range of abo~lt 80 - 400mm. Thc wa.ll thickn~ss of the shell d is at le~st aboul 5mm and increases up to about 7ûmm in lhe case of rolls of lar~e diarneter.
Thc ;n~ention has ~een described, with ref~rence to a roll having a helic~l coolant channel but it can ~Iso be used in rolls having other configurations ior the coolant chanllels (for inst~lce, radially ~r axially extending channels, channels formed aS grooves in the shell, or worked partiaily in the shell and partially in the co~.) It should be understood that the prererre~i embodin~ent considcred is for illustrative purposes only and is not ~o be constmed as limi~ing ~he scope of tile pres~nt in~ention which Is properly delineated only in the appended claims.
N~3245.~,~T -7-;
Claims (6)
1. An internally cooled roll, of the type used in a continuous casting plant, comprising:
a) a core composed of an iron containing metal, said core having an outer surface, two opposed ends and a longitudinal axis;
b) a shell surrounding said core, said shell having an inner surface and two lateral edges and being composed of a metal having high thermal conductivity;
c) means for attaching said shell to said core; and d) means disposed in heat-transfer relation with said shell for cooling said roll.
a) a core composed of an iron containing metal, said core having an outer surface, two opposed ends and a longitudinal axis;
b) a shell surrounding said core, said shell having an inner surface and two lateral edges and being composed of a metal having high thermal conductivity;
c) means for attaching said shell to said core; and d) means disposed in heat-transfer relation with said shell for cooling said roll.
2. The internally cooled roll according to claim 1, wherein said means for attaching said shell to said core comprises means for attaching said core to said shell at least at one of said edges of said shell in a snug fit manner.
3. The internally cooled roll according to claim 1, wherein said means for attaching said shell to said core includes a weld at least at one of said edges of said shell so as to attach said core to said shell.
N:3245-93.PAT
N:3245-93.PAT
4. The internally cooled roll according to claim 1, wherein said core additionally comprises at least one coolant channel having a coolant connection, said coolant channel being disposed on said surface of said core and in the form of an open grove, and said coolant channel being bounded by said inner surface of said shell.
5. The internally cooled roll according to claim 4, wherein said coolant channel is arranged in a helical manner around said longitudinal axis of said core and said cooling connection is disposed at one of said ends of said core.
6. the internally cooled roll according to claim 10, wherein said core having a bore connecting said coolant channel and said coolant connection.
N:3245-93.PAT
N:3245-93.PAT
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4027224.9-24 | 1990-08-24 | ||
| DE4027224A DE4027224C1 (en) | 1990-08-24 | 1990-08-24 | Internally cooled support and guide roll - comprises core of iron-base material with copper (alloy) jacket having helical groove(s) on core surface for cooling channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2049781A1 true CA2049781A1 (en) | 1992-02-25 |
Family
ID=6413097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002049781A Abandoned CA2049781A1 (en) | 1990-08-24 | 1991-08-23 | Internally cooled roll having a copper sheath |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPH04251644A (en) |
| KR (1) | KR920004062A (en) |
| BE (1) | BE1004774A3 (en) |
| CA (1) | CA2049781A1 (en) |
| DE (1) | DE4027224C1 (en) |
| DK (1) | DK149991A (en) |
| FI (1) | FI913971A (en) |
| LU (1) | LU87989A1 (en) |
| NL (1) | NL9101429A (en) |
| NO (1) | NO913039L (en) |
| SE (1) | SE9102358L (en) |
| ZA (1) | ZA916516B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100596547B1 (en) * | 2004-12-23 | 2006-07-06 | 재단법인 포항산업과학연구원 | Cooling Roll for manufacturing the metal strip by the melt drag casting process |
| EP2481512A1 (en) * | 2011-01-26 | 2012-08-01 | Voestalpine Stahl GmbH | Method for producing a roller having a layer made by build up welding ; Roller for guiding and/or supporting a string from a string moulding assembly with such a layer |
| DE102011050728A1 (en) * | 2011-05-30 | 2012-12-06 | Cetto Maschinenbau Gmbh & Co. Kg | Strand guide roller of strand guide device useful for guiding cast metal strand in continuous casting plant, comprises tube formed on peripheral side of strand guide roller, roller core arranged at inner side of tube, and recess |
| AT524483A1 (en) | 2020-08-19 | 2022-06-15 | Primetals Technologies Austria GmbH | Strand guide roller with a wear-resistant overlay |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1527650A1 (en) * | 1966-01-28 | 1970-03-19 | Willi Manthey | Conveyor roller for hot goods |
| FR2314788A1 (en) * | 1975-06-17 | 1977-01-14 | Fives Cail Babcock | INTERNAL COOLED TYPE ROLLERS IMPROVEMENTS |
| JPS56114562A (en) * | 1980-02-13 | 1981-09-09 | Fuji Kogyosho:Kk | Composite roll for continuous casting |
| DE3231433C2 (en) * | 1982-08-20 | 1985-07-11 | Mannesmann AG, 4000 Düsseldorf | Internally cooled support and / or transport roller and process for their production |
| JPS5966954A (en) * | 1982-10-08 | 1984-04-16 | Kawasaki Steel Corp | Roll for production of quickly cooled light-gage strip |
-
1990
- 1990-08-24 DE DE4027224A patent/DE4027224C1/en not_active Expired - Fee Related
-
1991
- 1991-08-05 NO NO91913039A patent/NO913039L/en unknown
- 1991-08-10 KR KR1019910013813A patent/KR920004062A/en not_active Application Discontinuation
- 1991-08-14 LU LU87989A patent/LU87989A1/en unknown
- 1991-08-15 SE SE9102358A patent/SE9102358L/en not_active Application Discontinuation
- 1991-08-16 ZA ZA916516A patent/ZA916516B/en unknown
- 1991-08-21 JP JP3234024A patent/JPH04251644A/en active Pending
- 1991-08-21 BE BE9100765A patent/BE1004774A3/en not_active IP Right Cessation
- 1991-08-22 FI FI913971A patent/FI913971A/en not_active Application Discontinuation
- 1991-08-23 CA CA002049781A patent/CA2049781A1/en not_active Abandoned
- 1991-08-23 NL NL9101429A patent/NL9101429A/en not_active Application Discontinuation
- 1991-08-23 DK DK149991A patent/DK149991A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA916516B (en) | 1992-08-26 |
| LU87989A1 (en) | 1992-03-03 |
| SE9102358D0 (en) | 1991-08-15 |
| DE4027224C1 (en) | 1991-10-10 |
| BE1004774A3 (en) | 1993-01-26 |
| FI913971A0 (en) | 1991-08-22 |
| NO913039L (en) | 1992-02-25 |
| SE9102358L (en) | 1992-02-25 |
| NL9101429A (en) | 1992-03-16 |
| NO913039D0 (en) | 1991-08-05 |
| FI913971A (en) | 1992-02-25 |
| JPH04251644A (en) | 1992-09-08 |
| KR920004062A (en) | 1992-03-27 |
| DK149991A (en) | 1992-02-25 |
| DK149991D0 (en) | 1991-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |