CN113976641B - Finishing mill export antifriction transition board - Google Patents
Finishing mill export antifriction transition board Download PDFInfo
- Publication number
- CN113976641B CN113976641B CN202111106781.9A CN202111106781A CN113976641B CN 113976641 B CN113976641 B CN 113976641B CN 202111106781 A CN202111106781 A CN 202111106781A CN 113976641 B CN113976641 B CN 113976641B
- Authority
- CN
- China
- Prior art keywords
- welt
- plate
- weight
- parts
- outlet
- 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.)
- Active
Links
- 230000007704 transition Effects 0.000 title claims abstract description 40
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 208000024780 Urticaria Diseases 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 21
- 239000010959 steel Substances 0.000 abstract description 21
- 238000012423 maintenance Methods 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a finishing mill outlet wear-resistant transition plate, which comprises: the transition plate base plate and welt, the welt sets up the top at the transition plate base plate, the welt includes entry welt and export welt, just entry welt sets up the place ahead at the export welt, be provided with the countersunk bolt that is connected with the transition plate base plate on entry welt and the export welt respectively, entry welt and export welt adopt titanium alloy plate respectively. Through the mode, the outlet wear-resistant transition plate of the finishing mill is specially designed with the inlet lining plate and the outlet lining plate, has the characteristics of high temperature resistance, wear resistance, impact resistance and the like, is long in service life, can be spliced by adopting small sub lining plates, prevents the problem of deformation, is singly replaced after being damaged, reduces the maintenance cost, and avoids the problems of steel piling, lower surface hot scratch and the like of strip steel at the outlet of the finishing mill by utilizing the design of chamfering and lower than a rolling horizontal line.
Description
Technical Field
The invention relates to the field of hot continuous rolling mills, in particular to an outlet wear-resistant transition plate of a finishing mill.
Background
Because the distance between the last stand working roll of the finishing mill and the outlet roller way is wider, about 2 meters, a transition device is needed to be arranged between the last stand working roll of the finishing mill and the outlet roller way to improve the threading performance of the strip steel, but the friction between the strip steel and the transition device is avoided, particularly the temperature of the finish rolling outlet strip steel is high and soft, and the hot scratch of the strip steel is easy to generate even pile steel when the head and the tail of the strip steel are in a tension-free state and when waves appear.
At present, in order to reduce the scratch and steel stacking probability of strip steel, most steel mills select materials such as wear-resistant steel, heat-resistant steel, bakelite and the like to manufacture a transition plate arranged between a finish rolling mill end frame working roll and an outlet roller way, but the transition plate has the characteristics of no impact resistance, easy deformation, easy peeling and the like, has short service life, is frequently maintained and replaced, generally needs to be replaced once every week, can be replaced after taking a plurality of people for several hours each time, has high maintenance cost, influences normal production and needs to be improved.
Disclosure of Invention
The invention mainly solves the technical problems of providing the wear-resistant transition plate for the outlet of the finishing mill, reducing the scratch problem of the lower surface of strip steel, reducing maintenance cost and improving durability.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a finishing mill outlet wear-resistant transition plate, comprising: the transition plate base plate and welt, the welt sets up the top at the transition plate base plate, the welt includes entry welt and export welt, just entry welt sets up the place ahead at the export welt, be provided with the countersunk bolt that is connected with the transition plate base plate on entry welt and the export welt respectively, entry welt and export welt adopt titanium alloy plate respectively.
In a preferred embodiment of the invention, the front end of the top surface of the inlet liner plate is provided with a chamfer, and the inlet liner plate is flush with the top surface of the outlet liner plate.
In a preferred embodiment of the present invention, the inlet liner plate and the outlet liner plate respectively comprise a plurality of sub liner plates which are distributed side by side.
In a preferred embodiment of the present invention, the transition plate substrate adopts a monolithic structure or a split structure corresponding to the inlet lining plate and the outlet lining plate one by one.
In a preferred embodiment of the invention, the lining plate is arranged between the working roll of the end stand of the finishing mill and the outlet roller way, and the height of the top surface of the lining plate is 50-60 mm lower than the rolling horizontal line of the lining plate.
In a preferred embodiment of the invention, countersunk holes corresponding to the countersunk bolts one by one are arranged on the inlet lining plate and the outlet lining plate, and threaded holes corresponding to the countersunk bolts one by one are arranged on the transition plate base plate.
In a preferred embodiment of the invention, the titanium alloy plate comprises the following components in parts by weight:
81-91 parts of Ti;
0.012-0.018 parts by weight of C;
0.08-0.12 part by weight of Si;
0.064-0.096 parts by weight of Fe;
4.0-6.0 parts by weight of Al;
mo 2.38-4.08 weight portions;
cr 2.38-4.08 weight portions;
zr 0.85-1.27 weight portions;
o is less than or equal to 0.06 weight part.
In a preferred embodiment of the invention, the titanium alloy plate comprises the following components in parts by weight:
81 parts by weight of Ti;
c0.012 parts by weight;
0.08 parts by weight of Si;
0.064 parts by weight of Fe;
al 4.0 parts by weight;
mo 2.38 parts by weight;
cr 2.38 parts by weight;
zr 0.85 parts by weight;
o0.3 parts by weight.
In a preferred embodiment of the invention, the titanium alloy plate comprises the following components in parts by weight:
91 parts by weight of Ti;
0.018 parts by weight of C;
0.12 parts by weight of Si;
0.096 parts by weight of Fe;
6.0 parts by weight of Al;
mo 4.08 parts by weight;
cr 4.08 weight portions;
zr 1.27 parts by weight;
0.06 parts by weight of O.
In a preferred embodiment of the invention, the titanium alloy plate comprises the following components in parts by weight:
87 parts by weight of Ti;
0.015 parts by weight of C;
0.09 parts by weight of Si;
0.08 parts by weight of Fe;
4.9 parts by weight of Al;
mo 3.6 parts by weight;
cr 3.25 parts by weight;
zr 1.11 parts by weight;
o0.04 parts by weight.
The beneficial effects of the invention are as follows: the outlet wear-resistant transition plate of the finishing mill is specially designed with an inlet lining plate and an outlet lining plate, has the characteristics of high temperature resistance, wear resistance, impact resistance and the like, is long in service life, can be spliced by adopting small sub lining plates, prevents the problem of deformation, is singly replaced after the sub lining plates are damaged, reduces the maintenance cost, avoids the problems of steel piling, lower surface hot scratch and the like of strip steel at the outlet of the finishing mill by utilizing the design of chamfer angles and lower than a rolling horizontal line, is beneficial to reducing the maintenance frequency and cost, and improves the production efficiency.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view of a preferred embodiment of a finishing mill outlet wear-resistant transition plate of the present invention;
fig. 2 is a top view of fig. 1.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 2, an embodiment of the present invention includes:
the finishing mill outlet wear-resistant transition plate as shown in fig. 1 is installed between a finishing mill end frame work roll 5 and an outlet roller table 4, and comprises: the transition plate base plate 1 and the lining plate 2, the lining plate 2 is arranged at the top of the transition plate base plate 1, in this embodiment, the lining plate 2 comprises an inlet lining plate 22 and an outlet lining plate 21, the inlet lining plate 22 is arranged in front of the outlet lining plate 21, the inlet lining plate 22 is flush with the top surface of the outlet lining plate 21, and a split structure is adopted, so that deformation and maintenance cost can be reduced.
The front end of the top surface of the inlet lining plate 22 is provided with a chamfer, the height of the top surface of the lining plate 2 is 50-60 mm lower than the rolling horizontal line of the lining plate, and strip steel is transited through the lining plate 2 to improve the strip steel threading performance and avoid the problems of piling up steel, hot scratch of the lower surface and the like of the strip steel at the outlet of a finishing mill.
In this embodiment, countersunk bolts 3 connected with the transition plate base plate 1 are respectively arranged on the inlet lining plate 22 and the outlet lining plate 21, so that the structure is firm, countersunk holes 23 corresponding to the countersunk bolts 3 one by one are arranged on the inlet lining plate 22 and the outlet lining plate 21, the heads of the countersunk bolts 3 are hidden, threaded holes 11 corresponding to the countersunk bolts 3 one by one are arranged on the transition plate base plate 1, and the disassembly and assembly are convenient.
As shown in fig. 2, the inlet lining board 22 and the outlet lining board 21 respectively comprise a plurality of sub lining boards distributed side by side, and the sub lining boards are distributed by adopting small blocks, so that the deformation problem can be reduced, and the sub lining boards are singly replaced after being damaged, so that the maintenance cost is reduced. The transition plate base plate 1 adopts an integral structure or a split structure corresponding to the inlet lining plate 22 and the outlet lining plate 21 one by one, and the inlet lining plate 22 and the outlet lining plate 21 are carried by the transition plate base plate 1.
The inlet lining plate 22 and the outlet lining plate 21 are respectively made of titanium alloy plates, and the titanium alloy plates are utilized to improve the high temperature resistance, the wear resistance and the shock resistance.
Example 1:
in this embodiment, the titanium alloy sheet includes the following components in parts by weight:
81 parts by weight of Ti;
c0.012 parts by weight;
0.08 parts by weight of Si;
0.064 parts by weight of Fe;
al 4.0 parts by weight;
mo 2.38 parts by weight;
cr 2.38 parts by weight;
zr 0.85 parts by weight;
0.3 parts by weight of O;
and unavoidable impurities.
Example 2:
in this embodiment, the titanium alloy sheet includes the following components in parts by weight:
91 parts by weight of Ti;
0.018 parts by weight of C;
0.12 parts by weight of Si;
0.096 parts by weight of Fe;
6.0 parts by weight of Al;
mo 4.08 parts by weight;
cr 4.08 weight portions;
zr 1.27 parts by weight;
0.06 parts by weight of O; and unavoidable impurities.
Example 3:
in this embodiment, the titanium alloy sheet includes the following components in parts by weight:
87 parts by weight of Ti;
0.015 parts by weight of C;
0.09 parts by weight of Si;
0.08 parts by weight of Fe;
4.9 parts by weight of Al;
mo 3.6 parts by weight;
cr 3.25 parts by weight;
zr 1.11 parts by weight;
0.04 parts by weight of O, and unavoidable impurities.
And (3) melting and casting the raw materials in parts by weight to obtain a platy blank, carrying out finish milling and drilling on the surface, and finally polishing to remove burrs to obtain a smooth inlet lining plate 22 and an outlet lining plate 21.
The test tensile strength is 1085Mpa, the yield strength is 983.5 Mpa, the area shrinkage is 61%, the elongation is 16.5%, and the fracture toughness is 124 MPa-m 1/2 Has the characteristics of high temperature resistance, wear resistance and impact resistance.
In conclusion, the wear-resistant transition plate for the outlet of the finishing mill disclosed by the invention has the advantages that the strip steel is transited and protected at the outlet of the finishing mill, the service life is prolonged, and the maintenance frequency is reduced.
The foregoing is only illustrative of the present invention and is not to be construed as limiting the scope of the invention, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present invention or by other related art, either directly or indirectly, are intended to be included within the scope of the invention.
Claims (5)
1. A finishing mill outlet wear resistant transition plate comprising: transition board base plate and welt, the welt sets up the top at the transition board base plate, the welt includes entry welt and export welt, just entry welt sets up the place ahead at export welt, be provided with the countersunk bolt that is connected with the transition board base plate on entry welt and the export welt respectively, entry welt and export welt include several sub-welts that distribute side by side respectively, entry welt and export welt adopt titanium alloy plate respectively, titanium alloy plate includes the component of following weight portion:
87 parts by weight of Ti;
0.015 parts by weight of C;
0.09 parts by weight of Si;
0.08 parts by weight of Fe;
4.9 parts by weight of Al;
mo 3.6 parts by weight;
cr 3.25 parts by weight;
zr 1.11 parts by weight;
o0.04 parts by weight.
2. The finishing mill outlet wear resistant transition plate of claim 1, wherein the inlet liner top surface front end is provided with a chamfer, the inlet liner being flush with the top surface of the outlet liner.
3. The finishing mill outlet wear-resistant transition plate of claim 1, wherein the transition plate base plate adopts an integral structure or a split structure corresponding to the inlet lining plate and the outlet lining plate one by one.
4. The finishing mill outlet wear-resistant transition plate according to claim 1, wherein the transition plate is arranged between a finishing mill end frame working roll and an outlet roller way, and the top surface position of the lining plate is 50-60 mm lower than the rolling horizontal line.
5. The finishing mill outlet wear-resistant transition plate according to claim 1, wherein counter sunk holes in one-to-one correspondence with counter sunk bolts are arranged on the inlet lining plate and the outlet lining plate, and threaded holes in one-to-one correspondence with the counter sunk bolts are arranged on the transition plate base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106781.9A CN113976641B (en) | 2021-09-22 | 2021-09-22 | Finishing mill export antifriction transition board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106781.9A CN113976641B (en) | 2021-09-22 | 2021-09-22 | Finishing mill export antifriction transition board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113976641A CN113976641A (en) | 2022-01-28 |
| CN113976641B true CN113976641B (en) | 2024-03-22 |
Family
ID=79736187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111106781.9A Active CN113976641B (en) | 2021-09-22 | 2021-09-22 | Finishing mill export antifriction transition board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113976641B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289527B (en) * | 2021-12-17 | 2024-05-14 | 张家港宏昌钢板有限公司 | Finishing mill outlet transition plate with wear-resisting high temperature resistance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005193273A (en) * | 2004-01-07 | 2005-07-21 | Hitachi Metals Ltd | Apron made of ceramic |
| 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 |
| CN203018464U (en) * | 2012-12-04 | 2013-06-26 | 上海梅山钢铁股份有限公司 | Transition plate capable of preventing flying shear outlet recurved steel scrap |
| CN204657110U (en) * | 2015-04-22 | 2015-09-23 | 首钢京唐钢铁联合有限责任公司 | A kind of hot finisher outlet liner plate |
| CN206122354U (en) * | 2016-09-30 | 2017-04-26 | 马鞍山钢铁股份有限公司 | Platen is led in rolling mill export |
| CN108624798A (en) * | 2018-05-14 | 2018-10-09 | 合肥东方节能科技股份有限公司 | A kind of rolling mill guiding liner plate of high-wearing feature |
| CN110170537A (en) * | 2019-05-21 | 2019-08-27 | 河钢股份有限公司承德分公司 | Finishing mill outlet transition guide platform |
| CN212442587U (en) * | 2020-04-13 | 2021-02-02 | 马鞍山钢铁股份有限公司 | Composite push plate for push bed of cogging mill |
-
2021
- 2021-09-22 CN CN202111106781.9A patent/CN113976641B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005193273A (en) * | 2004-01-07 | 2005-07-21 | Hitachi Metals Ltd | Apron made of ceramic |
| 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 |
| CN203018464U (en) * | 2012-12-04 | 2013-06-26 | 上海梅山钢铁股份有限公司 | Transition plate capable of preventing flying shear outlet recurved steel scrap |
| CN204657110U (en) * | 2015-04-22 | 2015-09-23 | 首钢京唐钢铁联合有限责任公司 | A kind of hot finisher outlet liner plate |
| CN206122354U (en) * | 2016-09-30 | 2017-04-26 | 马鞍山钢铁股份有限公司 | Platen is led in rolling mill export |
| CN108624798A (en) * | 2018-05-14 | 2018-10-09 | 合肥东方节能科技股份有限公司 | A kind of rolling mill guiding liner plate of high-wearing feature |
| CN110170537A (en) * | 2019-05-21 | 2019-08-27 | 河钢股份有限公司承德分公司 | Finishing mill outlet transition guide platform |
| CN212442587U (en) * | 2020-04-13 | 2021-02-02 | 马鞍山钢铁股份有限公司 | Composite push plate for push bed of cogging mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113976641A (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113976641B (en) | Finishing mill export antifriction transition board | |
| CN113416818A (en) | Heat treatment process of high-strength and high-toughness bainite/martensite multiphase bainite steel rail | |
| CN101918154B (en) | Rolling mill, and tandem rolling mill having the same | |
| CN201432200Y (en) | Steel rail straightener | |
| CN201676899U (en) | Non-porous rough rolling mill sliding guide | |
| CN201959990U (en) | Adjustable combined sliding guide | |
| CN100451243C (en) | Double t-shaped steel bulkhead profile | |
| CN201669277U (en) | Assembly type temper mill set tension roller with scrap guide groove | |
| CN2899986Y (en) | High rigidity four roller convertable fine rolling cold rolling mill | |
| CN215430823U (en) | Improved step pad for rolling mill | |
| CN208470553U (en) | It is a kind of to prevent metal bar material surface from wiping the bar collection construction scratched | |
| CN111589872A (en) | Roll assembly for rolling mill and heterogeneous rolling method thereof | |
| CN114289527B (en) | Finishing mill outlet transition plate with wear-resisting high temperature resistance | |
| CN2451224Y (en) | Mill roller | |
| CN201300141Y (en) | Up and down splitting entire roller box type 20 grinding mill | |
| CN201618729U (en) | Guide plate for rolling round steel | |
| Bhooplapur et al. | Upgrading existing plate mills for higher strength product | |
| CN201279524Y (en) | Composite roll | |
| CN218872395U (en) | Cement mill lining plate structure | |
| CN216172876U (en) | Novel lining structure of ball mill and use its ball mill | |
| CN2579515Y (en) | Double metal composite jaw plate | |
| CN2782248Y (en) | Mechanical clamping type wear-proof cast iron gruide board | |
| CN215203819U (en) | Bimetal chromium carbide wear-resistant composite steel plate | |
| CN220991115U (en) | Semi-autogenous mill feed end composite lining plate and semi-autogenous mill | |
| CN203356206U (en) | Working roll door locking plate of horizontal rolling mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |