CN110014044A - A kind of high pressure descaling case interior lining panel - Google Patents
A kind of high pressure descaling case interior lining panel Download PDFInfo
- Publication number
- CN110014044A CN110014044A CN201810017379.5A CN201810017379A CN110014044A CN 110014044 A CN110014044 A CN 110014044A CN 201810017379 A CN201810017379 A CN 201810017379A CN 110014044 A CN110014044 A CN 110014044A
- Authority
- CN
- China
- Prior art keywords
- interior lining
- lining panel
- high pressure
- transition area
- chamfered transition
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
Abstract
The invention discloses a kind of high pressure descaling case interior lining panels, by carrying out segment design to interior lining panel medial surface shape, and it is provided with corresponding Liang Ge chamfered transition area, it is damaged so as to effectively avoid slab corner and interior lining panel that friction occurs, hot-strip quality of edges is improved, hot-rolled product competitiveness is improved.
Description
Technical field
The present invention relates to the recovery techniques of tubing, more specifically refer to a kind of high pressure descaling case interior lining panel.
Background technique
Please refer to Fig. 1, the process flow of hot rolling producing line substantially has that heating furnace 1, roughing 2, finish rolling 3, layer are cold 4, batch 5 etc. five
Process.The process flow of roughing region is as follows: 210~250mm thickness continuous casting plate billet is heated to 1200 degree of left sides by hot-rolling heating furnace
The right side rolls a time into first rack 7a of roughing, later at roughing second after 6 de-scaling of 1# high-pressure water descaling case
Rack 7b carries out five passages of rolling, finally passes through each a time of the third and fourth rack 7c, 7d of roughing, finally rolls into thickness and exist
The intermediate base of 36-65mm range, while according to strip finished product different in width target value, it completes slab and subtracts width.
Fig. 2 is referred to, 1# high pressure descaling case is for removing the iron scale for being attached to hot base upper and lower surface.De-scaling box position peace
Loaded on de-scaling roller-way 11, internal two sides are equipped with interior lining panel 12.De-scaling case lid 13, which can be opened, carries out internal check operation.It is high
Pressing De-scaling box includes two pairs of descaling headers 14, and each pair of collector can spray high pressure water individually or simultaneously.In order to as far as possible
The water for going out De-scaling box is reduced, and prevents the interference between two pairs of collectors, De-scaling box is provided with gear in De-scaling box entrance and exit
Water installations 15.
Fig. 3 is referred to, in hot rolling actual production process, occasionally there are edge scratch class quality to lack for discovery steel edge portion
It falls into, is mainly distributed on strip two sides 20~60mm of edge, degree is different, influences hot-rolled product quality and competitiveness.
For this purpose, have passed through multiple defect verification test, by repeatedly opening De-scaling box, to De-scaling box interior lining panel surface inspection
And measurement, it is found that the place abrasion of table angle contact on liner plate and slab is the most serious.This is because in hot rolling production process,
Slab is extracted out from heating furnace, and since pumping steel position precision is inaccurate or mat conveyor roller-way sideslip, following table corner is passed through on slab
Uneven friction occurs when De-scaling box, between meeting and interior lining panel, causes slab corner position impaired, to roll subsequent
Drawbacks described above is generated in journey.
Summary of the invention
The purpose of the present invention is in view of the foregoing drawbacks, providing a kind of high pressure descaling case interior lining panel, slab can be effectively avoided
Steel edge portion mass defect caused by corner is damaged.
To achieve the goals above, the present invention uses following technical scheme.
A kind of high pressure descaling case interior lining panel, interior lining panel medial surface are designed as upper, middle and lower segment plane and upper, midplane
Between upper chamfered transition area and in, the lower chamfered transition area between lower section plane, wherein midplane height A, lower chamfering mistake
Cross the radius R1 in area, the calculation formula of the radius R2 in upper chamfered transition area is respectively as follows:
A is midplane height, unit mm in formula；
Ti is cast different slab thicknesses by continuous casting working procedure；
Ni is cast the corresponding block number of different-thickness slab by continuous casting working procedure；
K0For thickness empirical coefficient after heating of plate blank；
X in formulajFor the lower machine wear liner measurement in lower chamfered transition area；
MjFor the lower machine liner plate tricks of measurement abrasion；
K1For the empirical coefficient in lower chamfered transition area；
Y in formulajFor the lower machine wear liner measurement in upper chamfered transition area；
MjFor the lower machine liner plate tricks of measurement abrasion；
K2For the empirical coefficient in upper chamfered transition area.
The lower end initial position of the midplane height A is increased high by roller table surface benchmark relative position in De-scaling box
It spends A ' to obtain, the value range of A ' is 5~20mm.
The value range of the i is 1~6.
The K0Value range be 1.03~1.10.
The value range of the j is 10~20.
The K1Value range be 1.07~1.17.
The K2Value range be 1.03~1.13.
In above-mentioned technical proposal of the invention, high pressure descaling case interior lining panel of the invention, by interior lining panel medial surface
Shape carries out segment design, and is provided with corresponding Liang Ge chamfered transition area, so as to effectively avoid slab corner and liner
Plate occurs friction and is damaged, and improves hot-strip quality of edges, improves hot-rolled product competitiveness.
Detailed description of the invention
Fig. 1 is the heating furnace of hot rolling rolling line to the structural schematic diagram of roughing；
Fig. 2 is the structural schematic diagram of traditional high pressure descaling case；
Fig. 3 is the structural schematic diagram of interior lining panel of the invention.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawing.
High pressure descaling case interior lining panel of the invention is as shown in figure 3, its two sides for being symmetrically set in de-scaling roller-way, each interior lining panel
Total height and thickness with conventional liner plate before there is no difference.Difference is, medial surface be designed as upper, middle and lower segment plane and
Upper chamfered transition area upper, between midplane and in, the lower chamfered transition area between lower section plane, wherein midplane is high
Degree A, the radius R1 in lower chamfered transition area, upper chamfered transition area the calculation formula of radius R2 be respectively as follows:
1, corresponding different hot rolling producing lines, hot rolling high pressure descaling case interior lining panel can be by corresponding upstream continuous casting working procedure institute moulding plates
Base different-thickness group square, midplane height A is determined according to formula 1；
Wherein A --- midplane height (unit: mm)；
Ti --- continuous casting working procedure is cast different slab thicknesses (within the usual value 6 of i)；
Ni --- the corresponding block number of the cast different-thickness slab of continuous casting working procedure；
K0--- thickness empirical coefficient (value range 1.03~1.10) after heating of plate blank；
2, under hot rolling high pressure descaling case interior lining panel chamfered transition area design, determine its chamfer radius R1, according to lower machine
Wear liner degree measurement value XjAverage value obtains:
Xj--- machine wear liner measurement under lower chamfer site (within the usual value 10~20 of j)；
Mj--- the lower machine liner plate tricks of measurement abrasion；
K1--- lower chamfered part empirical coefficient (value range 1.07~1.17)；
3, on hot rolling high pressure descaling case interior lining panel chamfered transition area design, equally can be by lower machine wear liner degree
It measures and determines its chamfer radius R2:
Yj--- machine wear liner measurement under upper chamfer site (within the usual value 10~20 of j)；
Mj--- the lower machine liner plate tricks of measurement abrasion；
K2--- upper chamfered part empirical coefficient (value range 1.03~1.13)；
4, the design of the lower end initial position of De-scaling box midplane, can be by roller table surface benchmark in De-scaling box with respect to position
It sets increase height A ' to obtain, A ' value range is in 5~20mm.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (7)
1. a kind of high pressure descaling case interior lining panel, which is characterized in that interior lining panel medial surface be designed as upper, middle and lower segment plane and it is upper,
Upper chamfered transition area between midplane and in, the lower chamfered transition area between lower section plane, wherein midplane height A,
The radius R1 in lower chamfered transition area, upper chamfered transition area the calculation formula of radius R2 be respectively as follows:
A is midplane height, unit mm in formula；
Ti is cast different slab thicknesses by continuous casting working procedure；
Ni is cast the corresponding block number of different-thickness slab by continuous casting working procedure；
K0For thickness empirical coefficient after heating of plate blank；
X in formulajFor the lower machine wear liner measurement in lower chamfered transition area；
MjFor the lower machine liner plate tricks of measurement abrasion；
K1For the empirical coefficient in lower chamfered transition area；
Y in formulajFor the lower machine wear liner measurement in upper chamfered transition area；
MjFor the lower machine liner plate tricks of measurement abrasion；
K2For the empirical coefficient in upper chamfered transition area.
2. high pressure descaling case interior lining panel as described in claim 1, it is characterised in that: the lower end of the midplane height A
Initial position increases height A ' by roller table surface benchmark relative position in De-scaling box and obtains, and the value range of A ' is 5~20mm.
3. high pressure descaling case interior lining panel as described in claim 1, it is characterised in that: the value range of the i is 1~6.
4. high pressure descaling case interior lining panel as described in claim 1, it is characterised in that: the K0Value range be 1.03~
1.10。
5. high pressure descaling case interior lining panel as described in claim 1, it is characterised in that: the value range of the j is 10~20.
6. high pressure descaling case interior lining panel as described in claim 1, it is characterised in that: the K1Value range be 1.07~
1.17。
7. high pressure descaling case interior lining panel as described in claim 1, it is characterised in that: the K2Value range be 1.03~
1.13。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810017379.5A CN110014044B (en) | 2018-01-09 | 2018-01-09 | Lining plate of high-pressure descaling box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810017379.5A CN110014044B (en) | 2018-01-09 | 2018-01-09 | Lining plate of high-pressure descaling box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110014044A true CN110014044A (en) | 2019-07-16 |
| CN110014044B CN110014044B (en) | 2020-07-28 |
Family
ID=67187650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810017379.5A Active CN110014044B (en) | 2018-01-09 | 2018-01-09 | Lining plate of high-pressure descaling box |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08290221A (en) * | 1995-04-18 | 1996-11-05 | Nippon Kokan Light Steel Kk | Opening device for linear plate |
| CN201543650U (en) * | 2009-10-20 | 2010-08-11 | 宝山钢铁股份有限公司 | Vertical roll with surface curve being quartic equation |
| CN202377264U (en) * | 2011-11-11 | 2012-08-15 | 酒泉钢铁(集团)有限责任公司 | Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel |
| CN102699028A (en) * | 2012-02-24 | 2012-10-03 | 宝山钢铁股份有限公司 | Method for eliminating linear edge defects of hot-rolled low-carbon steel |
| CN204486488U (en) * | 2014-11-28 | 2015-07-22 | 宝山钢铁股份有限公司 | A kind of effective high pressure descaling case baffle device for water improving steel edge portion quality |
| CN204503789U (en) * | 2015-04-03 | 2015-07-29 | 唐山不锈钢有限责任公司 | A kind of finishing mill outlet transition guide plate |
-
2018
- 2018-01-09 CN CN201810017379.5A patent/CN110014044B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08290221A (en) * | 1995-04-18 | 1996-11-05 | Nippon Kokan Light Steel Kk | Opening device for linear plate |
| CN201543650U (en) * | 2009-10-20 | 2010-08-11 | 宝山钢铁股份有限公司 | Vertical roll with surface curve being quartic equation |
| CN202377264U (en) * | 2011-11-11 | 2012-08-15 | 酒泉钢铁(集团)有限责任公司 | Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel |
| CN102699028A (en) * | 2012-02-24 | 2012-10-03 | 宝山钢铁股份有限公司 | Method for eliminating linear edge defects of hot-rolled low-carbon steel |
| CN204486488U (en) * | 2014-11-28 | 2015-07-22 | 宝山钢铁股份有限公司 | A kind of effective high pressure descaling case baffle device for water improving steel edge portion quality |
| CN204503789U (en) * | 2015-04-03 | 2015-07-29 | 唐山不锈钢有限责任公司 | A kind of finishing mill outlet transition guide plate |
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| Publication number | Publication date |
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| CN110014044B (en) | 2020-07-28 |
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