CN114289527A - Finishing mill outlet transition plate with wear-resisting and high-temperature-resisting performances - Google Patents
Finishing mill outlet transition plate with wear-resisting and high-temperature-resisting performances Download PDFInfo
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- CN114289527A CN114289527A CN202111554037.5A CN202111554037A CN114289527A CN 114289527 A CN114289527 A CN 114289527A CN 202111554037 A CN202111554037 A CN 202111554037A CN 114289527 A CN114289527 A CN 114289527A
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- transition plate
- plate
- finishing mill
- wear
- transition
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- 230000007704 transition Effects 0.000 title claims abstract description 93
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 17
- 239000010959 steel Substances 0.000 abstract description 17
- 238000006748 scratching Methods 0.000 abstract description 4
- 230000002393 scratching effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001342 Bakelite® Polymers 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Images
Abstract
The invention discloses a finishing mill outlet transition plate with wear-resisting and high-temperature-resisting properties, which comprises a transition plate substrate and a transition plate lining plate; the transition plate lining plate is arranged on the top surface of the transition plate substrate and is tightly attached to the top surface of the transition plate substrate; the transition plate lining plate is made of a titanium alloy material and comprises the following chemical components in percentage by mass: c: 0.012-0.018%, Si: 0.08-0.12%, Fe: 0.064-0.096%, Al: 4.0-6.0%, Mo: 2.38-4.08%, Cr: 2.38-4.08%, Zr: 0.85 to 1.27%, O: less than or equal to 0.06 percent, and the balance of Ti and impurities. The transition plate lining plate has the advantages of high temperature resistance, wear resistance, impact resistance and the like, and effectively solves the problems of steel piling, thermal scratching of the lower surface and the like of strip steel at the outlet of a finishing mill.
Description
Technical Field
The invention relates to the technical field of steel rolling, in particular to an outlet transition plate of a finishing mill with wear resistance and high temperature resistance.
Background
The finishing mill group is a main process for determining the product quality, the distance between a working roll of a last stand of the finishing mill and an outlet roller way is wider (about 2 meters), and transition equipment is required to be arranged between the working roll and the outlet roller way so as to improve the threading performance of the strip steel. The friction between the strip steel and the transition plate can be avoided, particularly, the strip steel at the finish rolling outlet has high temperature and soft material, and is easy to generate hot scratch under the condition that the head and the tail of the strip steel have no tension, and even causes steel piling in serious conditions. At present, in order to reduce the probability of scratching and piling steel, most steel mills select materials such as wear-resistant steel, heat-resistant steel, bakelite and the like to manufacture a transition plate between a working roll of a finishing mill end frame and an outlet roller way, but the materials have the following defects:
1. the leather is not impact-resistant, is easy to deform and peel, has short service life, is frequently replaced, is generally replaced once per week, and can be replaced after 4 persons spend about 6 hours each time, thereby wasting time and labor.
2. The transition plate made of materials such as bakelite and the like has the cost of about 2.5 ten thousand for each set of lining plate and has high material price.
Aiming at the defects of the prior art, an outlet transition plate of a finishing mill with wear resistance and high temperature resistance is urgently needed, and the problem of scratching of the lower surface of strip steel is solved.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a transition plate with wear resistance and high temperature resistance for an outlet of a finishing mill.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a finishing mill export cab apron with wear-resisting high temperature resistance performance which characterized in that: comprises a transition plate substrate and a transition plate lining plate;
the transition plate lining plate is arranged on the top surface of the transition plate substrate and is tightly attached to the top surface of the transition plate substrate;
the transition plate lining plate is made of a titanium alloy material and comprises the following chemical components in percentage by mass: c: 0.012-0.018%, Si: 0.08-0.12%, Fe: 0.064-0.096%, Al: 4.0-6.0%, Mo: 2.38-4.08%, Cr: 2.38-4.08%, Zr: 0.85 to 1.27%, O: less than or equal to 0.06 percent, and the balance of Ti and impurities.
As a further preferred feature of the present invention, the bottom of the transition plate substrate is provided with a support frame, and the support frame is fixed on the ground; the transition plate base plate is arranged parallel to the ground.
As a further preferred aspect of the invention, the transition plate liner may be divided into several transition plate liner units.
As a further preferred aspect of the present invention, the plurality of transition plate lining units are fixed on the transition plate substrate by countersunk bolts.
As a further preferred feature of the invention, one end of the transition plate liner abuts against the finishing mill work roll and the other end of the transition plate liner abuts against the exit roller table.
As a further preferred aspect of the present invention, the end of the transition plate liner plate on the side close to the work roll of the finishing mill is provided with a chamfer.
Further preferably, the upper surface of the transition plate lining plate is 50-60 mm lower than the rolling horizontal plane of the work roll of the finishing mill.
The invention has the following beneficial effects:
1. the invention has the advantages of high temperature resistance, wear resistance, impact resistance and the like, and can effectively solve the problems of steel piling, thermal state scratch of the lower surface and the like of the strip steel at the outlet of the finishing mill.
2. The transition plate lining plate is made of a novel titanium alloy material, and the service life of the transition plate lining plate is far longer than that of a lining plate made of a conventional material.
3. The transition plate lining plate belongs to a quick-wear part, if the whole transition plate lining plate is replaced when the lining plate is damaged every time, unnecessary waste can be caused, and meanwhile, the workload of workers is increased. The transition plate lining plate adopts a unit assembling mode, only partial damaged lining plates can be replaced when the transition plate lining plate is damaged, and the production cost and the labor are saved.
4. The end part of the transition plate lining plate, which is close to one side of the finishing mill working roll, is provided with the chamfer, and meanwhile, the surface of the lining plate is arranged below the rolling horizontal plane of the finishing mill working roll, so that the deformation of the transition plate can be effectively prevented.
Drawings
FIG. 1 is a front view of an apparatus of the present invention for a finishing mill outlet transition plate having wear and high temperature resistance.
FIG. 2 is a top plan view of an apparatus of the present invention for a finishing mill outlet transition plate having wear and high temperature resistance.
Among them are: 1. a transition plate substrate; 2. a transition plate lining plate; 3. a support frame; 4. a transition plate liner unit; 5. a countersunk bolt; 6. a finishing mill work roll; 7. and (5) an outlet roller way.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
As shown in fig. 1, an outlet transition plate of a finishing mill with wear resistance and high temperature resistance is characterized in that: comprises a transition plate substrate 1 and a transition plate lining plate 2.
The bottom of the transition plate substrate 1 is provided with a support frame 3, and the support frame 3 is fixed on the ground; the transition plate substrate 1 is arranged at the top end of the support frame 3, and the transition plate substrate 1 is arranged in parallel to the ground.
The transition plate lining plate 2 is arranged on the top surface of the transition plate base plate 1 and is tightly attached to the top surface of the transition plate base plate 1; the transition plate lining plate 2 can be divided into a plurality of transition plate lining plate units 4, and the transition plate lining plate units 4 are all fixed on the transition plate substrate 1 through countersunk bolts 5. The transition plate lining plate belongs to a quick-wear part, if the whole transition plate lining plate is replaced when the lining plate is damaged at every time, unnecessary waste can be caused, the workload of workers is increased, the transition plate lining plate adopts a unit assembling mode, only part of the damaged lining plate can be replaced when the transition plate lining plate is damaged, and the production cost and the labor are saved.
One end of the transition plate lining plate 2 is tightly close to a working roll 6 of the finishing mill, and the other end of the transition plate lining plate 2 is tightly close to an outlet roller table 7.
A chamfer is arranged at the end part of one side of the transition plate lining plate 2 close to the working roll 6 of the finishing mill; the top surface of the transition plate lining plate 2 is 50-60 mm lower than the rolling horizontal plane of the working roll 6 of the finishing mill. The chamfer is arranged, and the upper surface of the lining plate is arranged below the rolling horizontal plane of the working roll of the finishing mill, so that the deformation of the transition plate can be effectively prevented
The transition plate lining plate 2 is made of a titanium alloy material and comprises the following chemical components in percentage by mass: c: 0.012-0.018%, Si: 0.08-0.12%, Fe: 0.064-0.096%, Al: 4.0-6.0%, Mo: 2.38-4.08%, Cr: 2.38-4.08%, Zr: 0.85 to 1.27%, O: less than or equal to 0.06 percent, and the balance of Ti and impurities.
Preferred embodiment 1
The transition plate lining plate comprises the following components: ti: 87.06%, C: 0.015%, Si: 0.09%, Fe: 0.08%, Al: 4.89%, Mo: 3.61%, Cr: 3.25%, Zr: 1.11%, O: 0.04% and the balance of impurities. The tensile strength is 1084Mpa, the yield strength is 983 Mpa, the reduction of area is 61.2 percent, the elongation is 16.6 percent, and the fracture toughness is 124.25 Mpa.m1/2It has the advantages of high temperature resistance, wear resistance, shock resistance and the like.
The transition plate lining plate 2 is made of titanium alloy materials, has the advantages of high temperature resistance, wear resistance, impact resistance and the like, can effectively solve the problems of steel piling, thermal scratching of the lower surface and the like of strip steel at the outlet of a finishing mill, and has the service life far longer than that of the lining plate made of conventional materials.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (7)
1. The utility model provides a finishing mill export cab apron with wear-resisting high temperature resistance performance which characterized in that: comprises a transition plate substrate (1) and a transition plate lining plate (2);
the transition plate lining plate (2) is arranged on the top surface of the transition plate substrate (1) and is tightly attached to the top surface of the transition plate substrate (1);
the transition plate lining plate (2) is made of a titanium alloy material and comprises the following chemical components in percentage by mass: c: 0.012-0.018%, Si: 0.08-0.12%, Fe: 0.064-0.096%, Al: 4.0-6.0%, Mo: 2.38-4.08%, Cr: 2.38-4.08%, Zr: 0.85 to 1.27%, O: less than or equal to 0.06 percent, and the balance of Ti and impurities.
2. The finishing mill outlet transition plate with wear and high temperature resistance of claim 1, wherein: the bottom of the transition plate substrate (1) is provided with a support frame (3), and the support frame (3) is fixed on the ground; the transition plate substrate (1) is arranged in parallel to the ground.
3. The finishing mill outlet transition plate with wear and high temperature resistance of claim 1, wherein: the transition plate lining plate (2) can be divided into a plurality of transition plate lining plate units (4).
4. The finishing mill outlet transition plate with wear and high temperature resistance of claim 3, wherein: the transition plate lining plate units (4) are fixed on the transition plate substrate (1) through countersunk bolts (5).
5. The finishing mill outlet transition plate with wear and high temperature resistance of claim 4, wherein: one end of the transition plate lining plate (2) is tightly close to the working roll (6) of the finishing mill, and the other end of the transition plate lining plate (2) is tightly close to the outlet roller table (7).
6. The finishing mill outlet transition plate with wear and high temperature resistance of claim 5, wherein: and a chamfer is arranged at the end part of one side of the transition plate lining plate (2) close to the working roll (6) of the finishing mill.
7. The finishing mill outlet transition plate with wear and high temperature resistance of claim 5, wherein: the upper surface of the transition plate lining plate (2) is 50-60 mm lower than the rolling horizontal plane of the work roll (6) of the finishing mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554037.5A CN114289527A (en) | 2021-12-17 | 2021-12-17 | Finishing mill outlet transition plate with wear-resisting and high-temperature-resisting performances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554037.5A CN114289527A (en) | 2021-12-17 | 2021-12-17 | Finishing mill outlet transition plate with wear-resisting and high-temperature-resisting performances |
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| Publication Number | Publication Date |
|---|---|
| CN114289527A true CN114289527A (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111554037.5A Pending CN114289527A (en) | 2021-12-17 | 2021-12-17 | Finishing mill outlet transition plate with wear-resisting and high-temperature-resisting performances |
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| CN (1) | CN114289527A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068003A (en) * | 1988-11-10 | 1991-11-26 | Sumitomo Metal Industries, Ltd. | Wear-resistant titanium alloy and articles made thereof |
| JPH03274238A (en) * | 1989-07-10 | 1991-12-05 | Nkk Corp | Manufacture of high strength titanium alloy excellent in workability and its alloy material as well as plastic working method therefor |
| CN101343705A (en) * | 2008-08-26 | 2009-01-14 | 沈阳铸造研究所 | Titanium alloy for high-rigidity cast and manufacturing method |
| CN102641906A (en) * | 2012-04-21 | 2012-08-22 | 合肥市泰通冶金科技有限公司 | Titanium alloy guide device |
| CN202527482U (en) * | 2012-01-31 | 2012-11-14 | 首钢京唐钢铁联合有限责任公司 | Outlet transition plate of finishing mill |
| CN105925843A (en) * | 2016-05-31 | 2016-09-07 | 西北有色金属研究院 | Medium-strength high-plasticity titanium alloy |
| CN208555512U (en) * | 2018-06-28 | 2019-03-01 | 江苏省沙钢钢铁研究院有限公司 | A kind of guide and guards for finishing mill outlet |
| CN113976641A (en) * | 2021-09-22 | 2022-01-28 | 常熟市福达金属制件有限公司 | Wear-resisting cab apron in finishing mill export |
-
2021
- 2021-12-17 CN CN202111554037.5A patent/CN114289527A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068003A (en) * | 1988-11-10 | 1991-11-26 | Sumitomo Metal Industries, Ltd. | Wear-resistant titanium alloy and articles made thereof |
| JPH03274238A (en) * | 1989-07-10 | 1991-12-05 | Nkk Corp | Manufacture of high strength titanium alloy excellent in workability and its alloy material as well as plastic working method therefor |
| CN101343705A (en) * | 2008-08-26 | 2009-01-14 | 沈阳铸造研究所 | Titanium alloy for high-rigidity cast and manufacturing method |
| CN202527482U (en) * | 2012-01-31 | 2012-11-14 | 首钢京唐钢铁联合有限责任公司 | Outlet transition plate of finishing mill |
| CN102641906A (en) * | 2012-04-21 | 2012-08-22 | 合肥市泰通冶金科技有限公司 | Titanium alloy guide device |
| CN105925843A (en) * | 2016-05-31 | 2016-09-07 | 西北有色金属研究院 | Medium-strength high-plasticity titanium alloy |
| CN208555512U (en) * | 2018-06-28 | 2019-03-01 | 江苏省沙钢钢铁研究院有限公司 | A kind of guide and guards for finishing mill outlet |
| CN113976641A (en) * | 2021-09-22 | 2022-01-28 | 常熟市福达金属制件有限公司 | Wear-resisting cab apron in finishing mill export |
Non-Patent Citations (1)
| Title |
|---|
| 路纲,张翥,惠松骁,李宗科,陈占乾,何书林: "Ti-18高温高强钛合金研制", no. 04, pages 271 - 276 * |
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