CA2099884A1 - Cooling roll - Google Patents
Cooling rollInfo
- Publication number
- CA2099884A1 CA2099884A1 CA002099884A CA2099884A CA2099884A1 CA 2099884 A1 CA2099884 A1 CA 2099884A1 CA 002099884 A CA002099884 A CA 002099884A CA 2099884 A CA2099884 A CA 2099884A CA 2099884 A1 CA2099884 A1 CA 2099884A1
- Authority
- CA
- Canada
- Prior art keywords
- sleeve
- roll
- arbor
- sleeve structure
- passages
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
- F28F5/02—Rotary drums or rollers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
-
- 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
- B22D11/0637—Accessories therefor
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Replacement Of Web Rolls (AREA)
- Electroplating Methods And Accessories (AREA)
- Coating With Molten Metal (AREA)
Abstract
A cooling roll comprises a rotatable arbor (1) with an annular sleeve (7) shrunk onto it. There are internal passages (25) in the sleeve for the flow of liquid coolant there along. The internal passages are in communication with ducts (19, 21) in the arbor and the liquid coolant passed along the passages from the ducts forms a thermal barrier in the sleeve between the outer periphery and the interface.
Description
i 2 / 0 0 0 0 8 ,~U J J ~ u'i h~ r - ~r~
A COOLING ROLL
This invention relates to a roll suitable for transferring heat between the roll and the material in contact with it. A particular, but not sole, application of the invention is to a roll suitable for use in a two-roll strip caster.
A strip caster usually consists of a pair of rolls, arranged side-by-side with their axes of rotation horizontal, and which are spaced apart to provide a gap between them. On the upper side of the rolls, the ends of the roll barrels can be provided with dams to form a space above the roll gap into which molten metal is poured. The rolls are usually liquid cooled to absorb heat from the molten metal which come into contact with them and form solidi~ied skins which thicken as the rolls rotate. As the rolls are rotated they ~orce the solidi~led skins o~ metal together and through the gap between the rolls to form a continuous metal strip.
In an effort to increase casting output, it is desirable to increase the speed of rotation o~ the rolls, but care has to be taken that the rolls absorb su~ficient heat from the metal in contact with them to form two solidified skins whose total thickness is greater than the end product.
US-A-4019846 discloses a roll employed in a briquetting machine. The roll comprises an arbor with an annular sleeve mounted on the arbor. There are axially extending passageways for cooling liquid in the sleeve and manifold ring assemblies mounted externally of the roll enable the cooIing liquid to be supplied to the passageways.
Two rings mounted externally of the roll are connected to opposite sides of the arbor and sleeve th¢reby preventing - : .
.
.
. , "~
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relative movement between them.
DE-A-3839110 discloses a roll for a twin-roll continuous caster. The roll comprises an arbor on the circumference of which are first and second sleeves. The first sleeve is a shrink fit on the arbor and the second sleeve is a shrink fit on the outer periphery of the first sleeve. Cooling liquid is supplied to the interface between the two sleeves and passes in the axial direction of the roll along the interface.
An object of the present invention is to provide an improved roll construction which permits greater throughput together with a stable roll design, which can readily be refurbished at the end of its useful life.
According to the present invention a cooling roll comprises a rotatable arbor; an annular sleeve structure mounted on the arbor with a shrink fit interface between the outer peripheral surface of the arbor and the inner surface of the annular sleeve structure; said sleeve structure having internal passages for the flow of liquid coolant therethrough; ducts in the arbor in communication with the internal passages whereby, in use, liquid coolant flows through the ducts and the passages to form an annular thermal barrier in the sleeve structure; characterised in that the sleeve structure comprises either a single annular sleeve or inner and outer sleeves joined together without a shrink fit interface between them.
The sleeve structure may be provided with a plurality of internal passages each extending paralLel to the longitudinal axis of the arbor. These passages may be formed by boring holes along the axis of the sleeve.
Alternatively, there may be a plurality of . "
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internal passages extending around the sleeve structure and coaxial with the periphery thereof.
In order to absorb as much heat as possible from the molten material, it is necessary for the part of the roll which contacts the molten material to be of a high conductivity metal, such as steel, copper, or any of their alloys.
The surface of the high conductivity metal may be covered with a protective surface layer, which for example could be a stainless steel with good thermal fatigue properties or a nickel or nickel/chrome layer or a metal matrix composite layer such as tungsten carbide/cobalt alloy or chrome carbide/nickel-chrome composite.
At the end of its useful life the 51eeve structure may be removed from the arbor by externally heating to expand the sleeve structure whilst omitting all cooling.
The sleeve structure could then be re~urbished prior to re-assembly.
The sleeve structure serVes as the roll barrel and, since an external force can be exerted upon it, there has to be a shrink fit between the sleeve and the arbor to prevent it rotating around the arbor.
In use, care has to be taken that the temperature of the sleeve structure relative to that o~ the arbor is not such that will cause differential expansion between the arbor and the sleeve structure so as to remove the interface joint between them. By arranging for a thermal barrier to be located between the outer surface of the sleeve structure and the i~te~face between-&le~ve structur~ and the arbor, a limited mini~um amount of the heat applied to the outer surface of the sle~ve structure penetrates to the interface between the sleeve and the arbor. At the same time, the liguid cooled sleeve structure efficiently removes heat ~rom the outer sur~ace of the sleeve structure thereby ~it~ :ri~ F ; i~ ()f~ T ~ r~ ~- ~- t P~T Ir.; -~! Av~'!catio:l 1 ~I~B Y~ . OOO 08 ~ ~ ~ J ~ e~ ?~
permitting rapid cooling of the material which iq in contact with it.
~ he interference fit betwesn the sleeve structure and the arbor provides a tensile stress in the sleeve structure which helps to negate the thermally induced compressive stresses.
In order that the invention may be more readily understood, it will now be described, by way of example only, with reference to the accompany drawings, in which:-Figure 1 i5 a view, partly in sect~on, of acooling roll in accordance with the present invention;
Figure 2 shows to an enlarged scale the part o~
the roll within the broken lines of Figure l; and Figure 3 shows a sectional view o~ an alternative cooling roll also in accordance with the invention.
A roll suitable for use in a metal caster comprises an elongate arbor 1 having cylindrical portions 3 ad~acent each end ~or receiving bearing assemblies (not shown). Substantially at the centre of the arbor there is a cylindrical sur~ace 5 on to which an annular copper-alloy sleeve stxucture 7 is shrunk. At one end of the surface 5 there is an annular rib 9 which i8 integral with the arbor.
An annular recess 10 is formed in the adjacent end wall 11 of the sleeve and a plurality of fitted bolts (not shown) extend through the rib into the sleeve 11 to provide additional securement for the sleeve on to the arbor. The recess 10 is closed off by an annular ring 12 which is secured to the rib 9 by a plurality of bolts 13.
An -ax-ial-- bore- i5 ex~ends-- into t~e arbor 1 from the non-drive end 16. A pair of annular channels 17A, o~ su~ T~
L~.= ..~
, ~92/ll959 ~ U~ PCT/GB92/OOOOX
17B are formed in the surface 5 of the arbor beneath the sleeve 7. A plurality of radial bores 19 extend from the channel 17A to the bore lS and, similarly, a plurality of radial bores 21 extend from the channel 17B
to 1:he bore 15. In the end face 11 of the sleeve 7, there is an annular channel 22 and a similar channel 23 is formed in the end wall of the opposite end of the sleeve. The two channels 22, 23 are connected by a multiplicity of passages 25 which extend between them in a direction substantially parallel to the longitudinal axis of the arbor 1. The passages 25 are spaced apart around the entire annular sleeue. In addition, the channel 22 is connected to the channel 17B by a bore 27 within the sleeve and, similarly, the channel 23 is connected to the channel 17A by an internal bore 28.
The channels 22, 23 are closed o~f by cover plates 29 which may be of the same material as the sleeve 7 and fixed in position by any convenient means such as welding along lines 30.
A tube 34 with a central enlarged outer diameter and seal 35 is located within bore 15 and provides a barrier between two annular areas 17A and 17B
one of which communicates with radial bores 19 and the other communicates with radial bores 21 for the passage of outgoing and incoming liquid coolant.
In use, liquid coolant, usually water, is passed along the space between the tube 34 the bore 15 and into each of the bores 19 where it flows to the channel 17A at the interface between the sleeve and the . .
~0 92/11959 ~ ~j J J ~ 6 - PCT/GB92/00008 arbor. The water then flows along the bore 28 to the channel 23 extending around the adjacent end face of the sleeve.
From this channel, the water floYs through the mu1tiplicity of bores 25 to the channel 22 in the end face 11 of the sleeve.
T~e water flowing through the passageways 25 cools the adjacent parts of the sleeve and, consequently, a cooled zone extends around the sleeve in the vicinity of the passageways. This cooled zone serves as a barrier which reduces the flow of heat from the outer surface of the sleeve to the interface between the sleeve and the arbor, thus preventing the temperature of the sleeve in the vicinity of the interface with the arbor from rising to a level where the shrink fit interface between the sleeve and the arbor is destroyed. The cooled zone serves to cool the outer surface of the sleeve thereby causing metal to solidify in contact ~ith the surface.
From the channel 22 the water flows along the bore 27 to the annular channel 17B and then via the bores 21 to the annulus formed by the pipe and bore 15 on the opposite side of the seal 35 and through the tube 34. The coolant may be made to flow in the reverse route to that described previously. A rotary coupling (not shown) is coupled to the end 16 of the ar~or to permit coolant to circulate through the roll as the roll is rotated.
An annular seal 33 is located at each end of ~ ' J ~ f i' &~
7 _ II ~ F~ n? ~ ~o ~
and between the sleeve and the arbor to prevent leakage of coolant from between the arbor and the sleeve. These seals can be fitted after assembly of the sleeve which will aid ~aintenance in the event o~ failure as vell as negate the requirement to assemble the seals prior to the shrink fitting of the sleeve 7 on to the arbor 1.
The sleeve can have a hard facing layex 31 on its outer periphery. This layer may comprise of chrome on nickel or stainless steel or a metal matrix composite such as tungsten carbide/cobalt alloy or chrome carbide/nickel-chrome composite. The barrel ends of sleeve 7 also can have similar hard facing layer 32.
Figure 3 shows sleeve structuxe 35 formed by welding or otherwise suitably joining together two separate sleeves 35a, 35b at joints 36. Coolant enters the arbor 38 along a hole 39 and then passes via radial bores 40 to a slot 41 at the shrink fit interface bet~een the sleeve structure and the arbor.
From ~lot 41, the cooling water passes through a series of radial holes 42 to circumferential grooves 43 at the interface between the two sleeves where it splits into two directions to pass circumferentially around the sleeve structure until the two flows unite to exit by a second series of radial holes 44. The cooling water passes from radial holes 44 to a second slot 45 which is connected to the outlet hole 46 in the arbor 38 by radial bores 47.
Figure 3 also shows an alternative method of providing the rib 9 shown in Figures 1 and 2. The rib is formed by ~ixing-a-disc 48-to_the arbor 38 wi-~ bolts 49.
' ~; SU 3S~1~ J5 ~;.
.. . .
.. : - :-
A COOLING ROLL
This invention relates to a roll suitable for transferring heat between the roll and the material in contact with it. A particular, but not sole, application of the invention is to a roll suitable for use in a two-roll strip caster.
A strip caster usually consists of a pair of rolls, arranged side-by-side with their axes of rotation horizontal, and which are spaced apart to provide a gap between them. On the upper side of the rolls, the ends of the roll barrels can be provided with dams to form a space above the roll gap into which molten metal is poured. The rolls are usually liquid cooled to absorb heat from the molten metal which come into contact with them and form solidi~ied skins which thicken as the rolls rotate. As the rolls are rotated they ~orce the solidi~led skins o~ metal together and through the gap between the rolls to form a continuous metal strip.
In an effort to increase casting output, it is desirable to increase the speed of rotation o~ the rolls, but care has to be taken that the rolls absorb su~ficient heat from the metal in contact with them to form two solidified skins whose total thickness is greater than the end product.
US-A-4019846 discloses a roll employed in a briquetting machine. The roll comprises an arbor with an annular sleeve mounted on the arbor. There are axially extending passageways for cooling liquid in the sleeve and manifold ring assemblies mounted externally of the roll enable the cooIing liquid to be supplied to the passageways.
Two rings mounted externally of the roll are connected to opposite sides of the arbor and sleeve th¢reby preventing - : .
.
.
. , "~
a~a ~ ~ J J
relative movement between them.
DE-A-3839110 discloses a roll for a twin-roll continuous caster. The roll comprises an arbor on the circumference of which are first and second sleeves. The first sleeve is a shrink fit on the arbor and the second sleeve is a shrink fit on the outer periphery of the first sleeve. Cooling liquid is supplied to the interface between the two sleeves and passes in the axial direction of the roll along the interface.
An object of the present invention is to provide an improved roll construction which permits greater throughput together with a stable roll design, which can readily be refurbished at the end of its useful life.
According to the present invention a cooling roll comprises a rotatable arbor; an annular sleeve structure mounted on the arbor with a shrink fit interface between the outer peripheral surface of the arbor and the inner surface of the annular sleeve structure; said sleeve structure having internal passages for the flow of liquid coolant therethrough; ducts in the arbor in communication with the internal passages whereby, in use, liquid coolant flows through the ducts and the passages to form an annular thermal barrier in the sleeve structure; characterised in that the sleeve structure comprises either a single annular sleeve or inner and outer sleeves joined together without a shrink fit interface between them.
The sleeve structure may be provided with a plurality of internal passages each extending paralLel to the longitudinal axis of the arbor. These passages may be formed by boring holes along the axis of the sleeve.
Alternatively, there may be a plurality of . "
;, . ', '~ J
L.,_ _. --: ._.. _.. _ ..... . .
~ ' ` ' . .,~ , -~' ~
';,' " ' p~:~&B q 2 . v ~ O 0 8 ~ ~ J J ~ Feb~r~
internal passages extending around the sleeve structure and coaxial with the periphery thereof.
In order to absorb as much heat as possible from the molten material, it is necessary for the part of the roll which contacts the molten material to be of a high conductivity metal, such as steel, copper, or any of their alloys.
The surface of the high conductivity metal may be covered with a protective surface layer, which for example could be a stainless steel with good thermal fatigue properties or a nickel or nickel/chrome layer or a metal matrix composite layer such as tungsten carbide/cobalt alloy or chrome carbide/nickel-chrome composite.
At the end of its useful life the 51eeve structure may be removed from the arbor by externally heating to expand the sleeve structure whilst omitting all cooling.
The sleeve structure could then be re~urbished prior to re-assembly.
The sleeve structure serVes as the roll barrel and, since an external force can be exerted upon it, there has to be a shrink fit between the sleeve and the arbor to prevent it rotating around the arbor.
In use, care has to be taken that the temperature of the sleeve structure relative to that o~ the arbor is not such that will cause differential expansion between the arbor and the sleeve structure so as to remove the interface joint between them. By arranging for a thermal barrier to be located between the outer surface of the sleeve structure and the i~te~face between-&le~ve structur~ and the arbor, a limited mini~um amount of the heat applied to the outer surface of the sle~ve structure penetrates to the interface between the sleeve and the arbor. At the same time, the liguid cooled sleeve structure efficiently removes heat ~rom the outer sur~ace of the sleeve structure thereby ~it~ :ri~ F ; i~ ()f~ T ~ r~ ~- ~- t P~T Ir.; -~! Av~'!catio:l 1 ~I~B Y~ . OOO 08 ~ ~ ~ J ~ e~ ?~
permitting rapid cooling of the material which iq in contact with it.
~ he interference fit betwesn the sleeve structure and the arbor provides a tensile stress in the sleeve structure which helps to negate the thermally induced compressive stresses.
In order that the invention may be more readily understood, it will now be described, by way of example only, with reference to the accompany drawings, in which:-Figure 1 i5 a view, partly in sect~on, of acooling roll in accordance with the present invention;
Figure 2 shows to an enlarged scale the part o~
the roll within the broken lines of Figure l; and Figure 3 shows a sectional view o~ an alternative cooling roll also in accordance with the invention.
A roll suitable for use in a metal caster comprises an elongate arbor 1 having cylindrical portions 3 ad~acent each end ~or receiving bearing assemblies (not shown). Substantially at the centre of the arbor there is a cylindrical sur~ace 5 on to which an annular copper-alloy sleeve stxucture 7 is shrunk. At one end of the surface 5 there is an annular rib 9 which i8 integral with the arbor.
An annular recess 10 is formed in the adjacent end wall 11 of the sleeve and a plurality of fitted bolts (not shown) extend through the rib into the sleeve 11 to provide additional securement for the sleeve on to the arbor. The recess 10 is closed off by an annular ring 12 which is secured to the rib 9 by a plurality of bolts 13.
An -ax-ial-- bore- i5 ex~ends-- into t~e arbor 1 from the non-drive end 16. A pair of annular channels 17A, o~ su~ T~
L~.= ..~
, ~92/ll959 ~ U~ PCT/GB92/OOOOX
17B are formed in the surface 5 of the arbor beneath the sleeve 7. A plurality of radial bores 19 extend from the channel 17A to the bore lS and, similarly, a plurality of radial bores 21 extend from the channel 17B
to 1:he bore 15. In the end face 11 of the sleeve 7, there is an annular channel 22 and a similar channel 23 is formed in the end wall of the opposite end of the sleeve. The two channels 22, 23 are connected by a multiplicity of passages 25 which extend between them in a direction substantially parallel to the longitudinal axis of the arbor 1. The passages 25 are spaced apart around the entire annular sleeue. In addition, the channel 22 is connected to the channel 17B by a bore 27 within the sleeve and, similarly, the channel 23 is connected to the channel 17A by an internal bore 28.
The channels 22, 23 are closed o~f by cover plates 29 which may be of the same material as the sleeve 7 and fixed in position by any convenient means such as welding along lines 30.
A tube 34 with a central enlarged outer diameter and seal 35 is located within bore 15 and provides a barrier between two annular areas 17A and 17B
one of which communicates with radial bores 19 and the other communicates with radial bores 21 for the passage of outgoing and incoming liquid coolant.
In use, liquid coolant, usually water, is passed along the space between the tube 34 the bore 15 and into each of the bores 19 where it flows to the channel 17A at the interface between the sleeve and the . .
~0 92/11959 ~ ~j J J ~ 6 - PCT/GB92/00008 arbor. The water then flows along the bore 28 to the channel 23 extending around the adjacent end face of the sleeve.
From this channel, the water floYs through the mu1tiplicity of bores 25 to the channel 22 in the end face 11 of the sleeve.
T~e water flowing through the passageways 25 cools the adjacent parts of the sleeve and, consequently, a cooled zone extends around the sleeve in the vicinity of the passageways. This cooled zone serves as a barrier which reduces the flow of heat from the outer surface of the sleeve to the interface between the sleeve and the arbor, thus preventing the temperature of the sleeve in the vicinity of the interface with the arbor from rising to a level where the shrink fit interface between the sleeve and the arbor is destroyed. The cooled zone serves to cool the outer surface of the sleeve thereby causing metal to solidify in contact ~ith the surface.
From the channel 22 the water flows along the bore 27 to the annular channel 17B and then via the bores 21 to the annulus formed by the pipe and bore 15 on the opposite side of the seal 35 and through the tube 34. The coolant may be made to flow in the reverse route to that described previously. A rotary coupling (not shown) is coupled to the end 16 of the ar~or to permit coolant to circulate through the roll as the roll is rotated.
An annular seal 33 is located at each end of ~ ' J ~ f i' &~
7 _ II ~ F~ n? ~ ~o ~
and between the sleeve and the arbor to prevent leakage of coolant from between the arbor and the sleeve. These seals can be fitted after assembly of the sleeve which will aid ~aintenance in the event o~ failure as vell as negate the requirement to assemble the seals prior to the shrink fitting of the sleeve 7 on to the arbor 1.
The sleeve can have a hard facing layex 31 on its outer periphery. This layer may comprise of chrome on nickel or stainless steel or a metal matrix composite such as tungsten carbide/cobalt alloy or chrome carbide/nickel-chrome composite. The barrel ends of sleeve 7 also can have similar hard facing layer 32.
Figure 3 shows sleeve structuxe 35 formed by welding or otherwise suitably joining together two separate sleeves 35a, 35b at joints 36. Coolant enters the arbor 38 along a hole 39 and then passes via radial bores 40 to a slot 41 at the shrink fit interface bet~een the sleeve structure and the arbor.
From ~lot 41, the cooling water passes through a series of radial holes 42 to circumferential grooves 43 at the interface between the two sleeves where it splits into two directions to pass circumferentially around the sleeve structure until the two flows unite to exit by a second series of radial holes 44. The cooling water passes from radial holes 44 to a second slot 45 which is connected to the outlet hole 46 in the arbor 38 by radial bores 47.
Figure 3 also shows an alternative method of providing the rib 9 shown in Figures 1 and 2. The rib is formed by ~ixing-a-disc 48-to_the arbor 38 wi-~ bolts 49.
' ~; SU 3S~1~ J5 ~;.
.. . .
.. : - :-
Claims (13)
1. A cooling roll comprising a rotatable arbor (1);
an annular sleeve structure (7) mounted on the arbor with a shrink fit interface between the outer peripheral surface (5) of the arbor and the inner surface of the annular sleeve structure;
said sleeve structure having internal passages (25,43) for the flow of liquid coolant therethrough;
ducts (19,40) in the arbor in communication with the internal passages whereby, in use, liquid coolant flows through the ducts and the passages to form an annular thermal barrier in the sleeve structure;
characterised in that the sleeve structure comprises either a single annular sleeve (7) or inner (35b) and outer (35a) sleeves joined together without a shrink fit interface between them.
an annular sleeve structure (7) mounted on the arbor with a shrink fit interface between the outer peripheral surface (5) of the arbor and the inner surface of the annular sleeve structure;
said sleeve structure having internal passages (25,43) for the flow of liquid coolant therethrough;
ducts (19,40) in the arbor in communication with the internal passages whereby, in use, liquid coolant flows through the ducts and the passages to form an annular thermal barrier in the sleeve structure;
characterised in that the sleeve structure comprises either a single annular sleeve (7) or inner (35b) and outer (35a) sleeves joined together without a shrink fit interface between them.
2. A cooling roll as claimed in claim 1 characterised in that the passages (25,43) in the sleeve structure are arranged so that, in use, the thermal barrier is located closer to the outer peripheral surface of the sleeve structure than it is to the interface.
3. A cooling roll as claimed in claim 1 or 2 characterised in that passages (25) in the sleeve structure extend parallel to the longitudinal axis of the arbor.
4. A cooling roll as claimed in claim 3 characterised in the provision of two circumferential distribution grooves (17A, 17B) at the interface between the arbor and the sleeve structure, and the ends of said passages (25) are connected to respective grooves.
5. A cooling roll as claimed in claim 1 or 2 characterised in that the sleeve structure comprises an outer annular sleeve (35a) mounted on and welded to an inner annular sleeve (35b) and the internal passages include circumferential grooves (43) at the interface between the inner and outer sleeves.
6. A cooling roll as claimed in claim 5 characterised in the provision of a slot (41) at the shrink fit interface between the arbor and the sleeve structure, and radial holes (42) in the inner annular sleeve connecting the slot and the circumferential grooves.
7. A roll as claimed in any preceding claim characterised in that the sleeve is of steel.
8. A roll as claimed in any of the claims 1 to 6 characterised in that the sleeve is of copper or copper alloy.
9. A roll as claimed in claim 7 or 8 characterised in that the periphery of the sleeve is protected by a thermally tough material which is harder than the sleeve.
10. A roll as claimed in claim 9 characterised in that the sleeve is protected by a layer of stainless steel.
11. A roll as claimed in claim 9 characterised in that the sleeve is protected by a layer of nickel/chrome.
12. A roll as claimed in claim 9 characterised in that the sleeve is protected by a metal matrix composite layer such as chrome carbide/nickel-chrome.
13. A roll as claimed in claim 9 characterised in that the sleeve is protected by a layer of tungsten carbide/cobalt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB919100151A GB9100151D0 (en) | 1991-01-04 | 1991-01-04 | Strip caster roll |
| GB9100151.1 | 1991-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2099884A1 true CA2099884A1 (en) | 1992-07-05 |
Family
ID=10687966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002099884A Abandoned CA2099884A1 (en) | 1991-01-04 | 1992-01-03 | Cooling roll |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0565586B1 (en) |
| JP (1) | JPH06507121A (en) |
| KR (1) | KR100229977B1 (en) |
| AT (1) | ATE165028T1 (en) |
| CA (1) | CA2099884A1 (en) |
| DE (1) | DE69225131T2 (en) |
| GB (1) | GB9100151D0 (en) |
| WO (1) | WO1992011959A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06182499A (en) * | 1992-12-22 | 1994-07-05 | Mitsubishi Heavy Ind Ltd | Cooling roll in continuous casting apparatus and manufacture thereof |
| KR100278534B1 (en) * | 1994-03-03 | 2001-01-15 | 로버트 에프. 도나휴 | Table driven automatic split field calculation method |
| JP2953304B2 (en) * | 1994-05-18 | 1999-09-27 | 関東特殊製鋼株式会社 | Roll outer tube material for continuous sheet casting machine |
| DE69425960T2 (en) * | 1994-06-13 | 2001-03-22 | Mitsubishi Jukogyo K.K., Tokio/Tokyo | Cooling roller for continuous casting and its production |
| CN1051262C (en) * | 1994-06-20 | 2000-04-12 | 三菱重工业株式会社 | Cooling cylinder in continous casting apparatus and method producing same |
| FR2723014B1 (en) * | 1994-07-29 | 1996-09-20 | Pechiney Rhenalu | METHOD AND DEVICE FOR CORRECTING THE OVALIZATION OF CONTINUOUS CASTING CYLINDERS OF METAL STRIP |
| AUPN053695A0 (en) * | 1995-01-13 | 1995-02-09 | Bhp Steel (Jla) Pty Limited | Casting roll |
| GB2324488A (en) * | 1997-04-24 | 1998-10-28 | Kvaerner Tech & Res Ltd | A casting roll with an interference fit between its inner core and outer shell |
| AUPO832897A0 (en) * | 1997-07-30 | 1997-08-28 | Bhp Steel (Jla) Pty Limited | Twin roll casting |
| CH690903A5 (en) * | 1999-08-20 | 2001-02-28 | Main Man Inspiration Ag | The strip casting machine with two casting rolls. |
| FR2799399B1 (en) * | 1999-10-06 | 2002-02-08 | Pechiney Rhenalu | CONTINUOUS CASTING CYLINDER OF METAL STRIP COMPRISING A COOLING CIRCUIT |
| KR100648232B1 (en) * | 2005-05-23 | 2006-11-23 | 주식회사 동방플랜텍 | The cooling structure of guide roller iron works |
| JP4686288B2 (en) * | 2005-07-25 | 2011-05-25 | キャストリップ・リミテッド・ライアビリティ・カンパニー | Casting roll |
| JP2007136485A (en) * | 2005-11-16 | 2007-06-07 | Ishikawajima Harima Heavy Ind Co Ltd | Roll for casting |
| KR100784150B1 (en) | 2006-12-18 | 2007-12-10 | 주식회사 포스코 | Apparatus for manufacturing compacted irons and apparatus for manufacturing molten irons |
| CN113430754A (en) * | 2021-07-19 | 2021-09-24 | 福建福田纺织印染科技有限公司 | Production process for improving crease of knitted fabric |
| CN116197240B (en) * | 2023-02-24 | 2023-08-15 | 浙江豪环新材料有限公司 | Processing technology and rolling mill for high-performance steel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019846A (en) * | 1975-06-05 | 1977-04-26 | Wean United, Inc. | Rolls in a briquetting machine or like machines |
| JPS56151149A (en) * | 1980-04-23 | 1981-11-24 | Kubota Ltd | Assembling type roll for continuous casting of slab |
| AU560682B2 (en) * | 1982-07-13 | 1987-04-16 | Allied Corporation | Two piece chilled casting wheel |
| JPH07121440B2 (en) * | 1987-11-19 | 1995-12-25 | 株式会社日立製作所 | Twin roll type continuous casting machine |
| FR2654372B1 (en) * | 1989-11-16 | 1992-01-17 | Siderurgie Fse Inst Rech | CYLINDER FOR A CONTINUOUS CASTING DEVICE ON OR BETWEEN TWO CYLINDERS. |
-
1991
- 1991-01-04 GB GB919100151A patent/GB9100151D0/en active Pending
-
1992
- 1992-01-03 KR KR1019930702018A patent/KR100229977B1/en not_active IP Right Cessation
- 1992-01-03 AT AT92902452T patent/ATE165028T1/en not_active IP Right Cessation
- 1992-01-03 CA CA002099884A patent/CA2099884A1/en not_active Abandoned
- 1992-01-03 DE DE69225131T patent/DE69225131T2/en not_active Expired - Fee Related
- 1992-01-03 JP JP4502164A patent/JPH06507121A/en active Pending
- 1992-01-03 WO PCT/GB1992/000008 patent/WO1992011959A1/en active IP Right Grant
- 1992-01-03 EP EP92902452A patent/EP0565586B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR930703096A (en) | 1993-11-29 |
| DE69225131D1 (en) | 1998-05-20 |
| KR100229977B1 (en) | 1999-11-15 |
| DE69225131T2 (en) | 1998-08-06 |
| ATE165028T1 (en) | 1998-05-15 |
| JPH06507121A (en) | 1994-08-11 |
| EP0565586B1 (en) | 1998-04-15 |
| EP0565586A1 (en) | 1993-10-20 |
| GB9100151D0 (en) | 1991-02-20 |
| WO1992011959A1 (en) | 1992-07-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |