CN202377264U - Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel - Google Patents

Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel Download PDF

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Publication number
CN202377264U
CN202377264U CN 201120444907 CN201120444907U CN202377264U CN 202377264 U CN202377264 U CN 202377264U CN 201120444907 CN201120444907 CN 201120444907 CN 201120444907 U CN201120444907 U CN 201120444907U CN 202377264 U CN202377264 U CN 202377264U
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CN
China
Prior art keywords
vertical
conical
vertical roller
hole pattern
edge
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.)
Expired - Fee Related
Application number
CN 201120444907
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Chinese (zh)
Inventor
田矫健
魏大宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiuquan Iron and Steel Group Co Ltd
Original Assignee
Jiuquan Iron and Steel Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiuquan Iron and Steel Group Co Ltd filed Critical Jiuquan Iron and Steel Group Co Ltd
Priority to CN 201120444907 priority Critical patent/CN202377264U/en
Application granted granted Critical
Publication of CN202377264U publication Critical patent/CN202377264U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a vertical roller hole pattern for eliminating a streaky peeling defect of an edge part of stainless steel hot-rolled strip steel, which has a box type symmetrical structure and is designed in a seven-section mode. The vertical roller hole pattern comprises an upper vertical surface, a middle vertical surface and a lower vertical surface, wherein the upper vertical surface is smoothly transited to the middle vertical surface through a first conical surface and a second conical surface sequentially; and the middle vertical surface is smoothly transited to the lower vertical surface through a third conical surface and a fourth conical surface sequentially. According to the vertical roller hole pattern, the previous five-section type of a vertical roller box type hole pattern is changed into a seven-section type, so that the conical surfaces on the upper and lower edges of a vertical roller are prevented from contacting a dog-bone-shaped rolled piece; a process of rolling the vertical roller in high rolling reduction can be realized, so that the control capacity of the vertical roller on the width of a steel coil and the rolling stability of the vertical roller are improved; and simultaneously, the streaky peeling defect of the edge part of the hot-rolled strip steel can be thoroughly eliminated, the problem of damages to the steel caused by the vertical roller is solved, the rolling yield of products is improved, and defects generated in the process of producing finished products are reduced. Simultaneously, compared with a curved roller pattern, the vertical roller hole pattern is easy to machine and has long service life.

Description

Eliminate the edger roll pass of stainless steel hot-rolling strip edge portion wire peeling defective
Technical field
The utility model relates to the hot-rolled stainless steel technical field, specifically refers to a kind of edger roll pass that can eliminate stainless steel hot-rolling strip edge portion wire peeling defective.
Background technology
Current, along with the development of steel rolling technology and the raising that the stainless steel product surface quality is required, and when realizing that high accuracy is spreaded control, improved the product lumber recovery and reduced production cost.The edger roll pass is studied as the emphasis steel rolling equipment; Domestic steel production enterprise has been carried out a large amount of research work; Wherein Chinese patent CN201720251U has proposed a kind of scuffing defective of forming owing to friction avoided between steel band and the import guide and guard, has improved product quality.Chinese patent CN201543650U, CN101745538A and CN201132167 have proposed the different designs through edger roll pass curve, reach the edger roll pass design of control strip edge portion black line (or claiming slit).But do not find to overcome band steel upper and lower surfaces produces wire peeling defective because of extruding the improved patent of edger roll pass.
The utility model content
The utility model provides a kind of edger roll pass that can thoroughly eliminate stainless steel hot-rolling strip edge portion wire peeling defective.
For this reason; Adopt following technical scheme: a kind of edger roll pass of eliminating stainless steel hot-rolling strip edge portion wire peeling defective; Said edger roll pass is the box symmetrical structure and adopts the design of 7 segmentations; It comprises the three sections vertical planes in upper, middle and lower, saidly go up, between the middle vertical plane successively by first, second conical surface rounding off, said in, down between the vertical plane successively by the 3rd, the 4th conical surface rounding off.
The horizontal sextant angle of said the first, the 4th conical surface is 12 °~18 °; The vertical angle of said second, third conical surface is 8 °~12 °.
The lower edge and the high height of rolling line fiducial mark of vertical plane in said.
The utility model is compared prior art and is had following advantage:
The utility model is made amendment original edger roll box pass parameter and is changed the box pass into 7 segmentations by 5 segmentations in earlier stage; Avoided contacting of the lower edge conical surface 3,4 (shown in Figure 1) and rolled piece dog bone 2 (shown in Figure 1) on the edger roll; And can realize rollingly, improve control ability and the rolling stability of edger roll, thoroughly eliminate strip edge portion's wire peeling defective and the edger roll steel problem of uttering a sound or a word simultaneously the coil of strip width than the edger roll of heavy reduction; Improve the product lumber recovery, and reduction manufactures a finished product.Compare with the curve roll shape simultaneously, the roll shape handling ease, and also service life is longer.
Description of drawings
Fig. 1 is the former pass operation of rolling of an edger roll sketch map;
Fig. 2 is the utility model structural representation.
The specific embodiment
are done further detailed explanation below in conjunction with accompanying drawing to the utility model and beneficial effect.
The hot-rolled stainless steel technological process is in the utility model: continuous casting steel billet---heats---de-scaling---universal mill (band edger roll before the roughing mill)---flying shear---steekle mill---laminar flow cooling---coiling machine---steel coils packing.Continuous casting steel billet thickness 220mm; Width of plate slab 1030mm~1550mm, roughing mill 7 passages are rolling, and vertical miller is in the odd-numbered pass input in the operation of rolling; Vertical miller is all-hydraulic screw-down; Has automatic width control (AWC) and short stroke control (SSC) function, vertical miller maximum reduction 50mm, 500 tons of maximum rolling forces.
Strip edge portion wire peeling defective mechanism of production; As can beappreciated from fig. 1, rolling line datum grade 12 and edger roll active section body of roll lower edge height such as grade, promptly middle vertical plane 8 body of roll height 235mm of edger roll active section; Rolled piece dog bone 2 shapes as shown in Figure 1 can appear in steel plate end face in the edger roll operation of rolling; With roughing first passage is example, considers hot varied in thickness of steel plate and distortion varied in thickness (dog-bone thickens), and operation of rolling light plate limit portion actual (real) thickness can reach 255mm; And real work section body of roll height has only 235mm; Therefore the lower edge directly contacts generation crimp on dog bone drum face that operation of rolling light plate face deformation produces and edger roll, causes the steel slab surface metal accumulation, through put down roll after generation limit portion wire peeling defective.In addition, when nose or discount appearred in slab, slab directly contacted with upper edge or outer end, lower edge during through the edger roll pass, caused the steel plate limit portion steel defective that occurs uttering a sound or a word end to end.
A kind of edger roll pass of eliminating stainless steel hot-rolling strip edge portion wire peeling defective; Comprise edger roll 1; Said edger roll 1 pass is the box symmetrical structure and adopts the design of 7 segmentations; It comprises three sections vertical planes in upper, middle and lower 5,8,11, saidly go up, middle vertical plane 5, between 8 successively by first, second conical surface 6,7 rounding ofves, said in, down vertical plane 8, between 11 successively by the 3rd, the 4th conical surface 9,10 rounding ofves.
The horizontal sextant angle of said the first, the 4th conical surface 6,10 is 12 °, 15 ° or 18 °; The vertical angle of said second, third conical surface 7,9 is 8 °, 10 ° or 12 °.
The working depth of vertical plane 8 is 235mm in said, and the total height of the said middle vertical plane 8 and first, second, third, fourth conical surface 6,7,9,10 is 385mm, 389mm or 405mm.
Lower edge and rolling line datum grade 12 height such as grade of vertical plane 8 in said, be for fear of operation of rolling light plate lower surface and edger roll lower edge promptly the 4th conical surface 10 contact, cause being with steel lower surface limit portion appearance wiping scuffing mass defect.
Before the utility model did not use, strip edge portion wire peeling defective frequently took place, and particularly the ferritic stainless steel defective is very serious, and it is very big to cause being with steel toe tail and limit portion to cut the damage amount.After the new pass The field of edger roll, strip edge portion wire peeling defective thoroughly disappears, and accomplishes the end in view.

Claims (3)

1. edger roll pass of eliminating stainless steel hot-rolling strip edge portion wire peeling defective; Comprise edger roll (1); It is characterized in that: said edger roll (1) pass is the box symmetrical structure and adopts the design of 7 segmentations; It comprises three sections vertical planes in upper, middle and lower (5,8,11), saidly go up, between the middle vertical plane (5,8) successively by first, second conical surface (6,7) rounding off, said in, down between the vertical plane (8,11) successively by the 3rd, the 4th conical surface (9,10) rounding off.
2. edger roll pass according to claim 1 is characterized in that: the horizontal sextant angle of said the first, the 4th conical surface (6,10) is 12 °~18 °; The vertical angle of said second, third conical surface (7,9) is 8 °~12 °.
3. edger roll pass according to claim 1 is characterized in that: the lower edge and the height such as rolling line datum grade (12) grade of vertical plane (8) in said.
CN 201120444907 2011-11-11 2011-11-11 Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel Expired - Fee Related CN202377264U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120444907 CN202377264U (en) 2011-11-11 2011-11-11 Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120444907 CN202377264U (en) 2011-11-11 2011-11-11 Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel

Publications (1)

Publication Number Publication Date
CN202377264U true CN202377264U (en) 2012-08-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120444907 Expired - Fee Related CN202377264U (en) 2011-11-11 2011-11-11 Vertical roller hole pattern for eliminating streaky peeling defect of edge part of stainless steel hot-rolled strip steel

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105945066A (en) * 2016-06-27 2016-09-21 莱芜美澳冶金科技有限公司 Working roller and rolling method of hot-rolled steel plate with different-thickness cross section and nonuniform deformation
CN110014044A (en) * 2018-01-09 2019-07-16 宝山钢铁股份有限公司 A kind of high pressure descaling case interior lining panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105945066A (en) * 2016-06-27 2016-09-21 莱芜美澳冶金科技有限公司 Working roller and rolling method of hot-rolled steel plate with different-thickness cross section and nonuniform deformation
CN110014044A (en) * 2018-01-09 2019-07-16 宝山钢铁股份有限公司 A kind of high pressure descaling case interior lining panel

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120815

Termination date: 20121111