CN103894567A - Method for prolonging service life of quick-cooling roller - Google Patents
Method for prolonging service life of quick-cooling roller Download PDFInfo
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- CN103894567A CN103894567A CN201410117834.0A CN201410117834A CN103894567A CN 103894567 A CN103894567 A CN 103894567A CN 201410117834 A CN201410117834 A CN 201410117834A CN 103894567 A CN103894567 A CN 103894567A
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- group structure
- cooling roller
- roller
- annular sheet
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Abstract
The invention provides a method for prolonging service life of a quick-cooling roller, and belongs to the field of manufacture of new materials. The method is applicable to quick-cooling rollers used in the manufacturing process of quickly cooled and solidified materials. A plurality of annular metal sheets are piled up together to form a cylindrical component, namely an annular sheet group structure, with the same length as a water-cooling roller. The plane orientation of the metal sheets is perpendicular to the axial direction of the water-cooling roller. The cylindrical component sleeves the water-cooling roller, and is connected with the water-cooling roller through a connection layer. Each annular sheet of the annular sheet group structure is perpendicular to a roller shaft, and gaps formed by the annular sheet group structure can effectively relieve circular heat stress, so that generation of fatigue cracks are restrained. The quick-cooling roller is of a structure of split assembly of the 'annular sheet group structure' and a 'roller core', and the annular sheet group structure can be replaced by a new annular sheet group structure when the surface of the annular sheet group structure is damaged to some extent after long-time use, so that the quick-cooling roller can be reused, and scrapping of the overall quick-cooling roller is not needed, and production cost can be greatly reduced.
Description
Technical field
The invention belongs to new material and manufacture field, relate to a kind of chilling roller method in service life that improves, this invention is applicable to chill roll rapidly used in the material manufacturing process of cooled and solidified rapidly.
Background technology
Adopt rapid quench method that the material of melting is solidified to be rapidly widely used a kind of material manufacturing process, this technique can allow material obtain some excellent character, has a wide range of applications in new material research and development and manufacture view.
" chilling roller " is the critical component in material quench solidification technique, is a metallic roll hollow and that be connected with cooling water.Under chilling roller high-speed rotation state, in running, high-temperature fusion liquid is cast in the surface of transfer roller with the form of a thread, makes chilling roller surface produce the cyclic thermal stres of high frequency, causes surface to produce gradually segmentation crack.After when serious, one stove high-temperature fusant pours, just there is clearly be full of cracks in roller surface.This has very seriously affected the condensation effect to melt liquid in follow-up work process, also greatly shortens the service life of chilling roller.
Therefore, need to find and a kind ofly can effectively suppress the method that chilling roller surface cracks, to extend the service life of chilling roller.
Summary of the invention
The object of this invention is to provide a kind of chilling roller method in service life that improves.
Improve the chilling roller structure in service life, it is characterized in that:
Many ring-like laminar metals stack, and forming a cylindric assembly identical with water cooled rolls length is ring plate group structure; The planar orientation of described laminar metal is according to the axial direction perpendicular to water cooled rolls; This cylindric assembly is enclosed within the outside of water cooled rolls; Between this cylindric assembly and water cooled rolls, be connected by articulamentum.
Improve the chilling roller method in service life, it is characterized in that step is as follows:
Many ring-like laminar metals are stacked and formed, form a cylindric assembly identical with water cooled rolls length; The planar orientation of described laminar metal is according to the axial direction perpendicular to water cooled rolls; This cylindric assembly is enclosed within the outside of water cooled rolls; Between this cylindric assembly and water cooled rolls, be connected by articulamentum.
Further, between this cylindric assembly and water cooled rolls, be combined with each other by soldering or adhesive connecting process.
Further, the gauge of laminar metal is the scope of 0.1 millimeter to 2 millimeters.
This structure, in the situation of surface breakdown, because cylindric assembly and water cooled rolls have adopted Split type structure, is only changed cylindric assembly.
In order to address the above problem, the technical solution adopted in the present invention is to adopt " ring plate group structure " to reduce thermal cycling stresses on round roller surface, thereby suppresses the generation of the crackle on roller surface.Ring plate group structure is to be stacked and formed by many ring-like laminar metals, forms a cylindric assembly identical with round roller length.The cylindric assembly that this ring plate group structure forms is enclosed within the outside of water cooled rolls.So the outer round surface of chilling roller is actually the thin slice composition stacking perpendicular to axial direction.Being connected between ring plate group and water cooled rolls can connect technique by soldering or the routine such as bonding and be combined with each other.The feature of this ring plate group structure is that the periphery of roller is not overall bulk metal surface, but is overlapped together by many laminar rings, and the planar orientation of thin slice is according to the axial direction perpendicular to cold roller, between sheet and sheet, is close together.The gauge of thin slice is conventionally the scope of 0.1 micron to 2 millimeters, but is not limited to above-mentioned size, is requirement and cost consideration for processing thin slice technique, and the more thin generation that is more conducive to suppress crackle.
Principle of the present invention is: adopt perpendicular to cold roll shaft to ring plate structure in, have many gaps perpendicular to roller surface, and these gaps are all parallel to the Plane of rotation of roller, namely pour into a mould plane.In the time that high-temperature fusant is poured into ring plate group surface, roller surface will produce transient heat and expand.Due to the existence in above-mentioned gap, can effectively alleviate the surface heat stress perpendicular to ring plate direction, simultaneously according to poisson effect, the surface heat stress that is parallel to ring plate direction also can necessarily be alleviated.So the surface heat pulsating stress that melt cast produces is effectively alleviated, thereby suppress generation and the expansion of surface fatigue crackle.
The invention has the advantages that:
(1) in ring plate group structure, each ring plate is perpendicular to the direction of roll shaft, and cyclic thermal stres can be effectively alleviated in the gap of its formation, thereby suppresses the generation of fatigue crack.
(2) chilling roller adopts the structure of " ring plate group structure " and " roller core " separable assembled, in the time that ring plate group body structure surface reaches certain degree of injury after long-term use, can replace by new ring plate group structure, just can reuse, and will not scrap by whole chilling roller, can greatly reduce production costs.
Accompanying drawing explanation
Fig. 1 is chilling roll structure schematic diagram of the present invention.Wherein the left side is along the cutaway view of axially cutting open; The right is perpendicular to the cutaway view that axle is cut open.
In figure: 1. ring plate group structure; 2. articulamentum; 3. water-cooled roller core; 4. recirculated water.
The specific embodiment
Lamination the present invention being adopted below in conjunction with drawings and Examples further illustrates.
Improve the chilling roller method method in service life, described " ring plate group structure " is closely to be stacked and form by many ring-like laminar metals, forms a cylindric assembly identical with round roller length.The cylindric assembly that this ring plate group structure forms is enclosed within the outside of " water-cooled roller core ", between water-cooled roller core and ring plate group structure, is closely connected by " articulamentum ".Each ring plate of described water-cooled roller core and composition ring plate group structure is to be made by the good metal of heat conductivility, and material can select the metal such as copper, molybdenum and associated alloys thereof.The material of water-cooled roller core and ring plate can be selected commaterial, also can select not same material, and each ring plate in ring plate group also can select commaterial, can be also different materials.The thickness of each ring plate is the scope of 1 micron to 2 millimeters.Described articulamentum is the material layer that adopts conventional connection technique formation such as welding, bonding, for connecting water-cooled roller core and ring plate group structure.The material of articulamentum can specifically need to select the corresponding conventional process materials that connects according to adopted connection technique.As selected common metal class cored solder to connect layer in soldering processes; If adopt technique for sticking, select corresponding adhesives to connect layer.
Below further introduce with three embodiment.
embodiment 1:
As shown in Figure 1, " ring plate group structure " 1 adopts Mo, and the each ring plate in structure is to be manufactured and formed by molybdenum sheet, and molybdenum sheet and molybdenum sheet closely overlap together, and forms cylinder dress " ring plate group structure " 1.Wherein the thickness of each molybdenum sheet adopts 0.1 millimeter.What the inner surface of " ring plate group structure " 1 was closely connected is " articulamentum " 2, and the material of articulamentum 2 adopts conventional heat-conducting glue, for the ring plate group structure of cylinder dress and the water-cooled roller core 3 in cylinder are bonded together.The material of water-cooled roller core 3 adopts fine copper to manufacture.The chilling roller of said structure composition, after the melt continuous pouring test of 3000 kilograms 1600 ℃, there is not be full of cracks in roller surface.
embodiment 2:
Ring plate group structure 1 in embodiment 2 is the same with the design feature in embodiment 1, is formed by many ring plate close contacts.Ring plate in " ring plate group structure " 1 adopts copper sheet and two kinds of materials of molybdenum sheet, and copper sheet and molybdenum sheet alternately closely overlap together, and forms cylinder dress " ring plate group structure " 1.Wherein the thickness of each copper sheet adopts 1 micron, and the thickness of each molybdenum sheet adopts 0.5 millimeter.What the inner surface of " ring plate group structure " 1 was closely connected is " articulamentum " 2, and the material of articulamentum 2 adopts elargol, for the ring plate group structure of cylinder dress and the water-cooled roller core 3 in cylinder are bonded together.The material of water-cooled roller core 3 adopts molybdenum alloy to manufacture.The chilling roller of said structure composition, after the melt continuous pouring test of 4500 kilograms 1600 ℃, there is not be full of cracks in roller surface.
embodiment 3:
In embodiment 3, the ring plate in " ring plate group structure " 1 adopts brass alloys sheet material, between latten(-tin) and latten(-tin), closely overlaps together, and forms cylinder dress " ring plate group structure " 1.Wherein the thickness of each latten(-tin) adopts 2 millimeters.What the inner surface of " ring plate group structure " 1 was closely connected is " articulamentum " 2, and the material of articulamentum 2 adopts common metal cored solder, for the ring plate group structure of cylinder dress and the water-cooled roller core 3 in cylinder are welded together.The material of water-cooled roller core 3 adopts brass alloys to manufacture.The chilling roller of said structure composition, after the melt continuous pouring test of 2500 kilograms 1600 ℃, there is not be full of cracks in roller surface.
Claims (5)
1. improve the chilling roller structure in service life, it is characterized in that:
Many ring-like laminar metals stack, and form a cylindric assembly identical with water cooled rolls length; The planar orientation of described laminar metal is according to the axial direction perpendicular to water cooled rolls; This cylindric assembly is enclosed within the outside of water cooled rolls; Between this cylindric assembly and water cooled rolls, be connected by articulamentum.
2. application rights requires structure described in 1 to improve the chilling roller method in service life, it is characterized in that step is as follows:
Many ring-like laminar metals are stacked and formed, form a cylindric assembly identical with water cooled rolls length; The planar orientation of described laminar metal is according to the axial direction perpendicular to water cooled rolls; This cylindric assembly is enclosed within the outside of water cooled rolls; Between this cylindric assembly and water cooled rolls, be connected by articulamentum.
3. a kind of chilling roller method in service life that improves according to claim 2, is characterized in that:
Between this cylindric assembly and water cooled rolls, be combined with each other by soldering or adhesive connecting process.
4. a kind of chilling roller method in service life that improves according to claim 2, is characterized in that:
The gauge of laminar metal is the scope of 0.1 micron to 2 millimeters.
5. application rights requires the method for structure described in 1, it is characterized in that:
This structure, in the situation of surface breakdown, because cylindric assembly and water cooled rolls have adopted Split type structure, is only changed cylindric assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117834.0A CN103894567B (en) | 2014-03-26 | 2014-03-26 | A kind of method improving chilling roller service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117834.0A CN103894567B (en) | 2014-03-26 | 2014-03-26 | A kind of method improving chilling roller service life |
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| Publication Number | Publication Date |
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| CN103894567A true CN103894567A (en) | 2014-07-02 |
| CN103894567B CN103894567B (en) | 2016-03-09 |
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| CN201410117834.0A Active CN103894567B (en) | 2014-03-26 | 2014-03-26 | A kind of method improving chilling roller service life |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218729A (en) * | 1997-08-08 | 1999-06-09 | 克瓦纳金属连铸有限公司 | Casting rolls |
| KR20040020492A (en) * | 2002-08-30 | 2004-03-09 | 주식회사 포스코 | A method for manufacturing the austenitic high manganese strip with evaporated volatile fume capturing device of a twin-roll strip caster |
| CN1481945A (en) * | 2002-09-11 | 2004-03-17 | 王树敏 | Steel billet feeding cylinder and the method of making and repairing it |
| CN2863305Y (en) * | 2005-11-02 | 2007-01-31 | 张子益 | Roll sheath with novel surface structure |
| CN201823912U (en) * | 2010-03-23 | 2011-05-11 | 罗泰莱克 | Splice stirring roller of slab continuous caster and metal slab continuous caster fitting same |
| CN202667593U (en) * | 2012-05-23 | 2013-01-16 | 中冶连铸技术工程股份有限公司 | Roller way with detachable roller sleeve |
-
2014
- 2014-03-26 CN CN201410117834.0A patent/CN103894567B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218729A (en) * | 1997-08-08 | 1999-06-09 | 克瓦纳金属连铸有限公司 | Casting rolls |
| KR20040020492A (en) * | 2002-08-30 | 2004-03-09 | 주식회사 포스코 | A method for manufacturing the austenitic high manganese strip with evaporated volatile fume capturing device of a twin-roll strip caster |
| CN1481945A (en) * | 2002-09-11 | 2004-03-17 | 王树敏 | Steel billet feeding cylinder and the method of making and repairing it |
| CN2863305Y (en) * | 2005-11-02 | 2007-01-31 | 张子益 | Roll sheath with novel surface structure |
| CN201823912U (en) * | 2010-03-23 | 2011-05-11 | 罗泰莱克 | Splice stirring roller of slab continuous caster and metal slab continuous caster fitting same |
| CN202667593U (en) * | 2012-05-23 | 2013-01-16 | 中冶连铸技术工程股份有限公司 | Roller way with detachable roller sleeve |
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| Publication number | Publication date |
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| CN103894567B (en) | 2016-03-09 |
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Effective date of registration: 20201014 Address after: 215600 station 0002, 20th floor, building A-1, shazhouhu science and Technology Innovation Park, Huachang Road, yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province (cluster registration) Patentee after: Youbiao e-commerce (Suzhou) Co.,Ltd. Address before: 100089 Beijing Haidian District Huayuan Road No. 2 peony building 4 floor 1424 room Patentee before: Beijing Zhonglian Technology Service Co.,Ltd. Effective date of registration: 20201014 Address after: 100089 Beijing Haidian District Huayuan Road No. 2 peony building 4 floor 1424 room Patentee after: Beijing Zhonglian Technology Service Co.,Ltd. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology |