CN105149358A - Composite material roller sleeve for aluminum alloy continuous cast rolling and manufacturing process thereof - Google Patents
Composite material roller sleeve for aluminum alloy continuous cast rolling and manufacturing process thereof Download PDFInfo
- Publication number
- CN105149358A CN105149358A CN201510574666.2A CN201510574666A CN105149358A CN 105149358 A CN105149358 A CN 105149358A CN 201510574666 A CN201510574666 A CN 201510574666A CN 105149358 A CN105149358 A CN 105149358A
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- copper
- steel
- roller shell
- copper alloy
- sleeve
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- 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
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention relates to a composite material roller sleeve for aluminum alloy continuous cast rolling and a manufacturing process thereof. The composite material roller sleeve comprises a metal outer sleeve and a copper alloy inner sleeve which are compound. The thickness of the metal outer sleeve is 10-30 mm, the thickness of the copper alloy inner sleeve is 20-40 mm, and the metal outer sleeve is a copper outer sleeve or a copper alloy outer sleeve. The thermal conductivity of the copper alloy inner sleeve is 100-420 W/M.K. The composite material roller sleeve is used for aluminum alloy continuous cast rolling. Through the seamless compounding of the metal outer sleeve (made of copper or copper alloy) and the copper alloy inner sleeve, on one hand, the roller sleeve has high hardness and rigidity and good high temperature resistance, heat fatigue resistance and thermal deformation resistance, and it is guaranteed that the roller sleeve has a long service life; on the other hand, the composite material roller sleeve has good heat conductivity; in the aluminum alloy continuous cast rolling process, liquid aluminum alloy can be quickly crystallized, the running speed of the roller sleeve and the production capacity of a device are improved.
Description
Technical field
The present invention relates to aluminium technical field of processing equipment, be specifically related to a kind of aluminium alloy continuous casting and rolling composite roller shell and manufacturing process thereof.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structural material in industry, widely applies in Aeronautics and Astronautics, automobile, machine-building, boats and ships and chemical industry.Along with science and technology and the develop rapidly of industrial economy in recent years, increasing to the demand of aluminum alloy strip structural member, along with the continuous increase of demand, intensified competition, the innovation reducing production cost will receive an acclaim certainly.At present, domestic aluminium processing industry nearly 1300-1500 bar continuous casting and rolling production line, the life-span of every bar steel roller shell is 6 months, each roller shell needs to change 2-3 every year, need roller shell 6000-8000 bar every year, the roller shell of domestic most of continuous casting and rolling production lines is steel, steel rod cover has higher intensity and hardness, there are high temperature resistant, thermal fatigue resistance and thermal deformation resistant performance preferably, but use steel rider cover to carry out the speed of continuous casting and rolling comparatively slowly, the actual motion speed in strip casting process is approximately 1m/min.
The roller shell of external many continuous casting and rolling production lines has use copper alloy roller shell, for the copper roller shell that Germany produces, the design and operation speed of copper roller shell is 1.5-2m/min, and copper roller shell price per ton is 26-30 ten thousand yuan, each roller shell just needs 40-60 ten thousand yuan, and use cost is higher.The thermal conductivity factor of fine copper is the thermal conductivity factor being only second to silver, it is one of best metal of heat conductivility, have and close report, the thermal conductivity factor of copper alloy is compared with copper, and difference is comparatively large, and the thermal conductivity factor of H80-H96 type copper alloy is 141-243.9W/M.K, illustrate in copper material after adding other metals, can optimize its performance, but thermal conductivity factor decreases more.Use copper roller shell can improve the speed of production of aluminium sheet in continuous casting and rolling process, but because the intensity of copper, hardness and anti-fatigue performance are all not as steel rod cover, the life-span of copper roller shell is lower than steel rod cover.
Summary of the invention
The object of the invention is the deficiency for solving the problems of the technologies described above, a kind of aluminium alloy continuous casting and rolling composite roller shell and manufacturing process thereof are provided, not only there is higher hardness and intensity, high temperature resistant, thermal fatigue resistance and thermal deformation resistant performance preferably, make the service life of roller shell longer, but also there is good thermal conductivity, liquid aluminium alloy rapid crystallization can be made, improve the speed of service of roller shell and the production capacity of equipment.
The present invention is for solving the problems of the technologies described above, and the technical scheme provided is: a kind of aluminium alloy continuous casting and rolling composite roller shell, comprise the metal-coating of compound and copper alloy inner sleeve, described metal-coating is steel overcoat or copper alloy sheaths.
Further optimization as a kind of aluminium alloy of the present invention continuous casting and rolling composite roller shell: copper-steel composite material roller shell comprises the steel overcoat of compound and copper alloy inner sleeve, the thickness of steel overcoat is 10-30mm, the thickness of copper alloy inner sleeve is 20-40mm, wherein, the hardness of steel overcoat material is HB200-420, room temperature tensile intensity is 300-1400MPa, and when 600 DEG C, tensile strength is 250-750MPa; In copper alloy inner sleeve material, Cu content is 80-99%, the thermal conductivity factor 100-420W/MK of material.
The material of described steel overcoat is 3MoV, 32Cr3MoV, 20Cr3MoWV, 35CrMnMo, 45MnMWV or CrNi3MoV.
Another kind of prioritization scheme as a kind of aluminium alloy of the present invention continuous casting and rolling composite roller shell: copper-steel composite material roller shell comprises the copper alloy sheaths of compound and copper alloy inner sleeve, the thickness of copper alloy sheaths is 10-30mm, the thickness of copper alloy inner sleeve is 20-40mm, wherein, the hardness of copper alloy sheaths material is HB200-420, room temperature tensile intensity is 300-500MPa, and when 600 DEG C, tensile strength is 200-450MPa; In copper alloy inner sleeve material, Cu content is 80-99%, the thermal conductivity factor 100-420W/MK of material.
A kind of manufacturing process of aluminium alloy continuous casting and rolling composite roller shell: first make cylindrical metal overcoat and cylindric steel inner core, steel inner core is placed in metal-coating and forms copper liquid casting die, and coat releasing agent at the outer wall of steel inner core, then copper liquid is poured in mould, steel inner core is sloughed after cooling, namely obtain composite roll cover blank, after machined, obtain roller shell finished product.
As the further optimization of the manufacturing process of a kind of aluminium alloy of the present invention continuous casting and rolling composite roller shell, specifically comprise the following steps:
1) conventional casting techniques or Forging Technology, is adopted to make cylindrical metal external sleeve blank, through further machining, metal-coating blank is processed into the metal-coating meeting design size, by metal-coating through cleaning, drying, as die coat, for subsequent use;
2), cylindric steel inner core is made, through machining, the diameter of steel inner core is made to meet the design size of roller shell inwall, use as mold core, coat releasing agent at the outer wall of steel inner core, metal-coating and steel inner core are placed on the cast copper fixture made, then mould upstream is fixed, be combined into copper liquid casting mold, for subsequent use.
3), copper liquid casting mold is put in vacuum tank, reserved vacuum exhaust pipe and sprue gate, vacuum tube is connected with vavuum pump for vacuumizing, sprue gate is connected for pouring copper liquid into vacuum drying oven, then vavuum pump and vacuum melting furnace is opened, after reaching design temperature, by copper liquid in the automatic pouring progressive die tool of sprue gate, through natural cooling, slough steel inner core, i.e. obtained copper-steel composite material roller shell blank, further across Technology for Heating Processing and Ageing Treatment, obtain the copper-steel composite material roller shell blank conformed to quality requirements, eventually pass mechanical processing technique, be made into copper-steel composite material roller shell finished product.
Described copper liquid pouring temperature is 1180-1250 DEG C.
beneficial effect
Composite roll cover of the present invention is used for aluminium alloy continuous casting and rolling, by the seamless compound of metal-coating (steel or copper alloy) with Cu alloy material inner sleeve, roller shell itself has higher hardness and intensity on the one hand, high temperature resistant, thermal fatigue resistance and thermal deformation resistant performance, ensure that roller shell has longer service life preferably; On the other hand, also there is good thermal conductivity, in aluminium alloy continuous casting and rolling process, liquid aluminium alloy rapid crystallization can be made, improve the speed of service of roller shell and the production capacity of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of copper-steel composite material roller shell of the present invention;
Mark in figure: 1, metal-coating, 2, copper alloy inner sleeve.
Detailed description of the invention
As shown in Figure 1: a kind of aluminium alloy continuous casting and rolling composite roller shell, comprise the metal-coating of compound and copper alloy inner sleeve, described metal-coating is steel overcoat or copper alloy sheaths.The thickness of metal-coating 1 is 10-30mm, the thickness of copper alloy inner sleeve 2 is 20-40mm, if metal-coating 1 selects steel, the hardness of steel overcoat material is HB200-420, room temperature tensile intensity is 300-1400MPa, and when 600 DEG C, tensile strength is 250-750MPa; In copper alloy inner sleeve material, Cu content is 80-99%, the thermal conductivity factor 100-420W/MK of material.The material of steel overcoat can be 3MoV, 32Cr3MoV, 20Cr3MoWV, 35CrMnMo, 45MnMWV or CrNi3MoV.If metal-coating 1 selects copper alloy material, the hardness of copper alloy sheaths material is HB200-420, and room temperature tensile intensity is 300-500MPa, and when 600 DEG C, tensile strength is 200-450MPa; In copper alloy inner sleeve material, Cu content is 80-99%, the thermal conductivity factor 100-420W/MK of material.
This aluminium alloy continuous casting and rolling manufacturing process of copper-steel composite material roller shell, specifically comprises the following steps:
1) conventional casting techniques or Forging Technology, is adopted to make cylindrical metal external sleeve blank, through further machining, metal-coating blank is processed into the metal-coating meeting design size, by metal-coating through cleaning, drying, as die coat, for subsequent use;
2), cylindric steel inner core is made, through machining, the diameter of steel inner core is made to meet the design size of roller shell inwall, use as mold core, coat releasing agent at the outer wall of steel inner core, metal-coating and steel inner core are placed on the cast copper fixture made, then mould upstream is fixed, be combined into copper liquid casting mold, for subsequent use.
3), copper liquid casting mold is put in vacuum tank, reserved vacuum exhaust pipe and sprue gate, vacuum tube is connected with vavuum pump for vacuumizing, sprue gate is connected for pouring copper liquid into vacuum drying oven, then vavuum pump and vacuum melting furnace is opened, after reaching design temperature, by copper liquid in the automatic pouring progressive die tool of sprue gate, through natural cooling, slough steel inner core, i.e. obtained copper-steel composite material roller shell blank, further across Technology for Heating Processing and Ageing Treatment, obtain the copper-steel composite material roller shell blank conformed to quality requirements, eventually pass mechanical processing technique, be made into copper-steel composite material roller shell finished product.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, , in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. an aluminium alloy continuous casting and rolling composite roller shell, is characterized in that: comprise the metal-coating of compound and copper alloy inner sleeve, described metal-coating is steel overcoat or copper alloy sheaths.
2. a kind of aluminium alloy continuous casting and rolling composite roller shell as claimed in claim 1, it is characterized in that: comprise the steel overcoat of compound and copper alloy inner sleeve, the thickness of steel overcoat is 10-30mm, the thickness of copper alloy inner sleeve is 20-40mm, wherein, the hardness of steel overcoat material is HB200-420, and room temperature tensile intensity is 300-1400MPa, and when 600 DEG C, tensile strength is 250-750MPa; In copper alloy inner sleeve material, Cu content is 80-99%, the thermal conductivity factor 100-420W/MK of material.
3. a kind of aluminium alloy continuous casting and rolling composite roller shell as claimed in claim 2, is characterized in that: the material of described steel overcoat is 3MoV, 32Cr3MoV, 20Cr3MoWV, 35CrMnMo, 45MnMWV or CrNi3MoV.
4. a kind of aluminium alloy continuous casting and rolling composite roller shell as claimed in claim 1, it is characterized in that: comprise the copper alloy sheaths of compound and copper alloy inner sleeve, the thickness of copper alloy sheaths is 10-30mm, the thickness of copper alloy inner sleeve is 20-40mm, wherein, the hardness of copper alloy sheaths material is HB200-420, and room temperature tensile intensity is 300-500MPa, and when 600 DEG C, tensile strength is 200-450MPa; In copper alloy inner sleeve material, Cu content is 80-99%, the thermal conductivity factor 100-420W/MK of material.
5. a kind of manufacturing process of aluminium alloy continuous casting and rolling composite roller shell as described in claim arbitrary in claim 1-4, it is characterized in that: first make cylindrical metal overcoat and cylindric steel inner core, steel inner core is placed in metal-coating and forms copper liquid casting die, and coat releasing agent at the outer wall of steel inner core, then copper liquid is poured in mould, slough steel inner core after cooling, namely obtain composite roll cover blank, after machined, obtain roller shell finished product.
6. the manufacturing process of a kind of aluminium alloy continuous casting and rolling composite roller shell as claimed in claim 5, is characterized in that: specifically comprise the following steps:
1) conventional casting techniques or Forging Technology, is adopted to make cylindrical metal external sleeve blank, through further machining, metal-coating blank is processed into the metal-coating meeting design size, by metal-coating through cleaning, drying, as die coat, for subsequent use;
2), cylindric steel inner core is made, through machining, the diameter of steel inner core is made to meet the design size of roller shell inwall, use as mold core, coat releasing agent at the outer wall of steel inner core, metal-coating and steel inner core are placed on the cast copper fixture made, then mould upstream is fixed, be combined into copper liquid casting mold, for subsequent use;
3), copper liquid casting mold is put in vacuum tank, reserved vacuum exhaust pipe and sprue gate, vacuum tube is connected with vavuum pump for vacuumizing, sprue gate is connected for pouring copper liquid into vacuum drying oven, then vavuum pump and vacuum melting furnace is opened, after reaching design temperature, by copper liquid in the automatic pouring progressive die tool of sprue gate, through natural cooling, slough steel inner core, i.e. obtained copper-steel composite material roller shell blank, further across Technology for Heating Processing and Ageing Treatment, obtain the copper-steel composite material roller shell blank conformed to quality requirements, eventually pass mechanical processing technique, be made into copper-steel composite material roller shell finished product.
7. the manufacturing process of a kind of aluminium alloy continuous casting and rolling composite roller shell as claimed in claim 6, is characterized in that: described copper liquid pouring temperature is 1180-1250 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574666.2A CN105149358A (en) | 2015-09-11 | 2015-09-11 | Composite material roller sleeve for aluminum alloy continuous cast rolling and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574666.2A CN105149358A (en) | 2015-09-11 | 2015-09-11 | Composite material roller sleeve for aluminum alloy continuous cast rolling and manufacturing process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105149358A true CN105149358A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510574666.2A Pending CN105149358A (en) | 2015-09-11 | 2015-09-11 | Composite material roller sleeve for aluminum alloy continuous cast rolling and manufacturing process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380671A (en) * | 2018-02-27 | 2018-08-10 | 攀枝花市仁通钒业有限公司 | A kind of roll sheath for cold-rolling mill work roll |
| CN109127734A (en) * | 2018-09-06 | 2019-01-04 | 湖南三泰新材料股份有限公司 | Roll sleeve, the manufacturing method of roll sleeve and roll |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5191925A (en) * | 1989-10-02 | 1993-03-09 | Usinor Sacilor | Roll for a device for the direct continuous casting of thin strips of molten metal |
| WO2003060168A2 (en) * | 2002-01-16 | 2003-07-24 | Paul Wurth S.A. | Cooling plate for a metallurgical furnace and method for manufacturing such a cooling plate |
| CN101249555A (en) * | 2008-03-19 | 2008-08-27 | 厦门大学 | Core-shaped self-assembled compound material and method of preparing the same |
| CN104694780A (en) * | 2015-02-06 | 2015-06-10 | 中国能建集团装备有限公司北京技术中心 | Cu-Ni-Si alloy material and cooling roller sleeve containing alloy |
-
2015
- 2015-09-11 CN CN201510574666.2A patent/CN105149358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5191925A (en) * | 1989-10-02 | 1993-03-09 | Usinor Sacilor | Roll for a device for the direct continuous casting of thin strips of molten metal |
| WO2003060168A2 (en) * | 2002-01-16 | 2003-07-24 | Paul Wurth S.A. | Cooling plate for a metallurgical furnace and method for manufacturing such a cooling plate |
| CN101249555A (en) * | 2008-03-19 | 2008-08-27 | 厦门大学 | Core-shaped self-assembled compound material and method of preparing the same |
| CN104694780A (en) * | 2015-02-06 | 2015-06-10 | 中国能建集团装备有限公司北京技术中心 | Cu-Ni-Si alloy material and cooling roller sleeve containing alloy |
Non-Patent Citations (1)
| Title |
|---|
| 朱警雷等: ""硬质合金复合辊环复合工艺的研究进展"", 《粉末冶金技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380671A (en) * | 2018-02-27 | 2018-08-10 | 攀枝花市仁通钒业有限公司 | A kind of roll sheath for cold-rolling mill work roll |
| CN109127734A (en) * | 2018-09-06 | 2019-01-04 | 湖南三泰新材料股份有限公司 | Roll sleeve, the manufacturing method of roll sleeve and roll |
| CN109127734B (en) * | 2018-09-06 | 2020-05-22 | 湖南三泰新材料股份有限公司 | Roll sleeve, method for producing roll sleeve, and roll |
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Application publication date: 20151216 |
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