CN104338747B - One subtracts sizing production line and production method thereof - Google Patents
One subtracts sizing production line and production method thereof Download PDFInfo
- Publication number
- CN104338747B CN104338747B CN201410560391.2A CN201410560391A CN104338747B CN 104338747 B CN104338747 B CN 104338747B CN 201410560391 A CN201410560391 A CN 201410560391A CN 104338747 B CN104338747 B CN 104338747B
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- Prior art keywords
- sizing
- pinch roll
- subtract
- mill
- pinch
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
-
- 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
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses one and subtract sizing production line and production method thereof, this production line is subtracting the disconnected former configuration pinch roll cut of sizing card, and pinch roll is cut close proximity to card is disconnected, configures hot metal detector before pinch roll.Subtract sizing pinch roll and typically take head and omnidistance two kinds of clamping working methods, in the case of reducing-sizing mill sky is crossed, use full folder mode or the mode taking head to pinch, in the case of using reducing-sizing mill rolling, subtract sizing pinch roll and use whole process to pinch mode.The present invention can reduce rolled piece and shake in water tank or soaking zone, make rolled piece nip smoothly and subtract precision mill, avoid at finish rolling or heap steel in subtracting sizing collecting receptacle, water tank nozzle and the abrasion of soaking zone guide groove can be reduced simultaneously, ensure that rolled piece cools down uniformly on same cross section, eliminate rolled piece surface and the situation of " zebra-stripe " occurs, reduce the finished product Out-gauge number of turns.
Description
Technical field
The invention belongs to Rolling production technical field, relate to high-speed wire production line and rolling process side thereof
Method, particularly relates to one and subtracts sizing production line and production method thereof.
Background technology
The technological process that high-speed wire production line is common: cold and hot base feeding → conveying weighs (→ defective rejecting)
→ push away steel enter stove → heat → come out of the stove de-scaling (→ defective rejecting) → roughing mills rolling → l# shear end to end →
Intermediate mill rolling → 2# flying shear crop end → pre-finishing mill group rolling (rolling a water-cooled) → pre-water-cooled → 3# shears
End to end → no-twist finishing mill rolling (rolling a water-cooled) → water-cooled → pinch, volume of weaving silk → dissipate control cooling → collection volume
→ fortune is wrapping with hook → P&F line transporter transport → quality examination, sampling, shears → compress bundling → coil end to end
Weigh → hang label → unload volume → warehouse-in → delivery.In order to improve high-speed rod-rolling mill production operational availability and meet line
The requirement that wire size precision, surface quality, mechanical performance etc. are improved constantly by material user, a lot of production lines exist
Add again between finishing mill and pinch roll/Laying head and subtract precision mill.In order to improve the interior tissue of wire rod,
Improving product mechanical performance, production technology all uses thermal mechanical rolling or the method for normalizing rolling, this just requires control
Make the rolled piece temperature into reducing-sizing mill, so all strengthen mm finishing mill unit and reducing sizing mill when Technology designs
Distance (general more than 40 meters) between group, arrange here three to four can realize that rolled piece quickly cools down big
Water amount water tank；Distance between reducing-sizing mill and pinch roll/Laying head increases to about 30 meters the most accordingly,
Arrange two around here and can realize the big yield water tank that rolled piece quickly cools down, to control laying temperature.
The wire rod production line that production high-quality steel and steel alloy are main at present mostly is 8 frame mm finishing mill unit band 4 framves and subtracts calmly
The 8+4 arrangement form of footpath unit, the wire rod production line also having a lot of upgrading is then in original 10 frame finish rolling
2 framves or 10+2 or the 10+4 arrangement form of 4 frame reducing-sizing mill is increased on unit.
When use subtracts sizing production, the rolled piece of part larger product therefrom rolls, pre-finish rolling outlet directly enters to subtract
Sizing unit roll, rolled piece sky is the most distant, shake in water tank nozzle and guide groove bigger than normal, resistance is excessive and
Mistake easily causes water tank nozzle and guide groove rapid wear, subtracts precision mill heap steel, rolled piece surface appearance " speckle end to end
Ma Wen " and the finished product Out-gauge number of turns technology trouble such as too much；For raising product intensity and comprehensive mechanical performance
The TMCP controlled rolling and controlled cooling production technology taked, adds the cooling water pressure of water tank, the water yield, so that rolled piece,
Particularly spiral resistance in water tank becomes big, simple passes out to subtract fixed diameter rolling or direct by finishing mill
Before delivering to Laying head, pinch roll easily causes heap steel, it is difficult to meet the production needs of modernization；For 10+2 or
Although the finishing mill arrangement form of 10+4 can be thrown away when necessary subtracts precision mill directly with finishing mill production greatly
Part steel grade, but before subtracting the empty out-of-date mm finishing mill unit of sizing and Laying head, pinch roll is apart from each other, and rolled piece can produce
Bigger shake, and mistake will also result in water tank nozzle and guide groove rapid wear, water-cooled line heap steel, finish rolling end to end
Machine heap steel, the faults such as unrest of weaving silk.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, it is an object of the invention to provide one and subtract sizing production line
And production method, rolled piece can be reduced and shake in water tank or soaking zone, make rolled piece nip smoothly and subtract sizing and roll
Machine, it is to avoid at finish rolling or heap steel in subtracting sizing collecting receptacle, can reduce water tank nozzle and soaking zone guide groove simultaneously
Abrasion, it is ensured that rolled piece cools down uniformly on same cross section, eliminates rolled piece surface and the situation of " zebra-stripe " occurs,
Reduce the finished product Out-gauge number of turns.
The purpose of the present invention is achieved through the following technical solutions:
One subtracts sizing production line, it is characterised in that subtracts sizing production line described in: and includes mm finishing mill unit, finishing mill
Water-cooled, the first online diameter measurement instrument after group, subtract sizing pinch roll, card disconnected cut, reducing-sizing mill, reducing sizing mill
Pinch roll, Laying head before rear water-cooled, the second online diameter measurement instrument, Laying head, disconnected the cutting of described card is positioned at reducing sizing mill
Group porch, subtracts before sizing pinch roll is arranged on that card is disconnected and cuts, and abuts against card and break and cut place, is subtracting sizing
With before pinch roll, hot metal detector is set.
In the present invention, after mm finishing mill unit, water-cooled includes one group of 3-4 water tank and the soaking zone being positioned between water tank, subtracts
After sizing mill, water-cooled includes two water tanks and soaking zone therebetween.
A kind of production method subtracting sizing production line, it is characterised in that the method specific requirement is as follows:
1) in the case of reducing-sizing mill sky is crossed, for bright finish wire rod or φ 6mm, the spiral shell of φ 8mm
Stricture of vagina steel, subtracts sizing pinch roll and all uses full folder mode, to reduce rolled piece shake when by water tank, in heat
Metal detector is detected with during steel signal starting to pinch；Rolling φ 14mm, the screw-thread steel of φ 16mm specification
Time, take not press from both sides mode, it is to avoid affect the shape of spiral；Rolling φ 10mm, the screw-thread steel of φ 12mm
Time, owing to water tank is much greater, in order to ensure that rolled piece passes through water to the resistance ratios bright finish wire rod of screw-thread steel
Case, takes the mode that head pinches, and pinches when hot metal detector is detected with steel signal time delay；
2) in the case of using reducing-sizing mill rolling, subtract sizing pinch roll and use whole process to pinch mode.
The present invention subtracts sizing pinch roll in the disconnected former configuration cut of card, and described in subtract sizing pinch roll and try one's best
Cuts near card is disconnected, described subtract sizing pinch roll before configure hot metal detector.Described subtract sizing pinch roll
Typically take head and omnidistance two kinds of clamping working methods.
The invention has the beneficial effects as follows: it is flat that the production line of the present invention can make rolled piece run in water tank and soaking zone
Surely, reduce shake, make rolled piece nip smoothly and subtract precision mill, it is to avoid at finish rolling or heap steel in subtracting sizing collecting receptacle,
Water tank nozzle and the abrasion of soaking zone guide groove can be reduced simultaneously, ensure that rolled piece cools down uniformly on same cross section,
Eliminate rolled piece surface and the situation of " zebra-stripe " occurs, reduce the finished product Out-gauge number of turns.
Accompanying drawing explanation
Fig. 1 be in the present invention finishing mill to technology arrangement figure between Laying head.
In Fig. 1,1, mm finishing mill unit, 2, water-cooled after mm finishing mill unit, 3, online diameter measurement instrument, 4, subtract sizing and use
Pinch roll, 5, subtract that sizing card is disconnected to be cut, 6, reducing-sizing mill, 7, water-cooled after reducing sizing mill, 8, survey online
Footpath instrument, 9, pinch roll before Laying head, 10, Laying head.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.
As it is shown in figure 1, one subtracts sizing production line, production line includes water-cooled after mm finishing mill unit 1, mm finishing mill unit
2, online diameter measurement instrument 3, subtract sizing pinch roll 4, card disconnected cut 5, water after reducing-sizing mill 6, reducing sizing mill
Pinch roll 9, Laying head 10 before cold 7, online diameter measurement instrument 8, Laying head.Card is disconnected to be cut 5 and is positioned at reducing-sizing mill
6 entrances, after mm finishing mill unit, water-cooled 2 includes three to four water tanks and soaking zone therebetween.Water-cooled after reducing sizing mill
7 include two water tanks and soaking zone therebetween.Have in the disconnected former configuration cutting 5 of card and subtract sizing pinch roll 4,
And subtract sizing pinch roll 4 and cut 5 close proximity to card is disconnected, before subtracting sizing pinch roll 4, configure thermometal inspection
Survey device.
A kind of production method subtracting sizing production line, specific requirement is as follows:
Reducing-sizing mill 6 is empty cross in the case of, the screw-thread steel the highest for bright finish wire rod, prescription or φ
The screw-thread steel of 6mm, φ 8mm, subtracts sizing pinch roll 4 and all uses full folder mode, to reduce rolled piece logical
Cross shake during water tank, start to pinch when hot metal detector is detected with steel signal；Rolling φ 14mm,
During the screw-thread steel of φ 16mm specification, can be to take not press from both sides mode, it is to avoid affect the shape of spiral；Rolling
φ 10mm, φ 12mm screw-thread steel time, owing to water tank is much greater to the resistance ratios bright finish wire rod of screw-thread steel,
Therefore to ensure that rolled piece passes through water tank, take the mode that head pinches, detect at hot metal detector
Pinch when having steel signal time delay.
In the case of using reducing-sizing mill 6 rolling, subtract sizing pinch roll 4 and all can use the whole process side of pinching
Formula.
Claims (3)
1. one kind subtracts sizing production line, it is characterized in that: described in subtract water-cooled after sizing production line includes mm finishing mill unit, mm finishing mill unit, the first online diameter measurement instrument, subtract sizing pinch roll, card disconnected cut, pinch roll, Laying head before water-cooled, the second online diameter measurement instrument, Laying head after reducing-sizing mill, reducing sizing mill, disconnected the cutting of described card is positioned at reducing-sizing mill porch, subtract before sizing pinch roll is arranged on that card is disconnected and cuts, and abut against that card is disconnected cuts place, before subtracting sizing pinch roll, hot metal detector is set.
The most according to claim 1 subtract sizing production line, it is characterised in that: after mm finishing mill unit, water-cooled includes one group of 3-4 water tank and the soaking zone being positioned between water tank, and after reducing sizing mill, water-cooled includes two water tanks and soaking zone therebetween.
3. the production method subtracting sizing production line described in a claim 1, it is characterised in that this production method specific requirement is as follows:
1) in the case of reducing-sizing mill sky is crossed, for bright finish wire rod or φ 6
Mm, φ 8 screw-thread steel of mm, subtracts sizing pinch roll and all uses whole process to pinch mode, to reduce rolled piece shake when by water tank, start to pinch when hot metal detector is detected with steel signal；During rolling φ 14 mm, φ 16 screw-thread steel of mm specification, take not press from both sides mode, it is to avoid affect the shape of screw-thread steel；When rolling the screw-thread steel of φ 10mm, φ 12mm, owing to water tank is much greater to the resistance ratios bright finish wire rod of screw-thread steel, in order to ensure that rolled piece passes through water tank, takes the mode that head pinches, pinch when hot metal detector is detected with steel signal time delay；
2) in the case of using reducing-sizing mill rolling, subtract sizing pinch roll and use whole process to pinch mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410560391.2A CN104338747B (en) | 2014-10-21 | 2014-10-21 | One subtracts sizing production line and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410560391.2A CN104338747B (en) | 2014-10-21 | 2014-10-21 | One subtracts sizing production line and production method thereof |
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| Publication Number | Publication Date |
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| CN104338747A CN104338747A (en) | 2015-02-11 |
| CN104338747B true CN104338747B (en) | 2016-08-24 |
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| CN106077082B (en) * | 2016-06-21 | 2018-08-24 | 江苏永钢集团有限公司 | Reinforcing bar skids cataclasm judgment method on a kind of high-speed rod |
| CN114850211B (en) * | 2022-03-18 | 2023-09-26 | 江阴兴澄特种钢铁有限公司 | Production method of hot rolled wire rod with diameter of 4.5mm for drawing |
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| US5170653A (en) * | 1990-09-07 | 1992-12-15 | Bethlehem Steel Corporation | Method for coiling twist free steel bars |
| CN103191916B (en) * | 2013-03-28 | 2015-06-17 | 攀钢集团成都钢钒有限公司 | Rolling method for round steel |
| CN103639195B (en) * | 2013-11-28 | 2015-11-04 | 攀钢集团江油长城特殊钢有限公司 | A kind of method of producing beta titanium alloy wire rod |
| CN103706634B (en) * | 2014-01-07 | 2016-04-06 | 中冶赛迪工程技术股份有限公司 | Close-coupled wire and rod rolling line |
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| CN104338747A (en) | 2015-02-11 |
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