CN107983769A - A kind of method for improving rolled wire poker characteristic uniformity - Google Patents
A kind of method for improving rolled wire poker characteristic uniformity Download PDFInfo
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- CN107983769A CN107983769A CN201610950853.0A CN201610950853A CN107983769A CN 107983769 A CN107983769 A CN 107983769A CN 201610950853 A CN201610950853 A CN 201610950853A CN 107983769 A CN107983769 A CN 107983769A
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- Prior art keywords
- roller
- wire rod
- way
- wire
- initial segment
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Classifications
-
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The present invention discloses a kind of method for improving rolled wire poker characteristic uniformity, ± 10 DEG C of Ts=Fs+85 DEG C of laying temperature+(Vs/0.3m/s) × 30 DEG C, wherein Fs is phase transition temperature, Vs is initial segment roller table speed, and the initial segment of cooling roller bed can move reciprocatingly perpendicular to roller-way direction of advance, long 1.2 1.5m, 50 60 times/min of reciprocating frequency, 0.10 0.15m of amplitude so that the changing of the relative positions occurs for wire rod density and overlap joint, so as to reduce the performance difference at edge and middle part.Using this method, the poker intensity difference of wire-rod roll can be controlled within 20MPa.
Description
Technical field
The invention belongs to Rolling production technical field, more particularly to a kind of side for improving rolled wire poker characteristic uniformity
Method, it is advantageously ensured that follow-up deep processing quality.
Background technology
At present the alloying of variety of Wire Rod steel is related to multiple element, and the wherein alloying element such as C, Mn, Cr, Mo, B adds
Add, the average tensile strength of wire rod can be greatly improved, meanwhile, the tissue of wire rod and tensile strength to the sensitiveness of cooling rate significantly
Improve, there were significant differences for the tissue that same component wire rod is formed under different cooling speed, causes the poker tensile strength of wire rod to fluctuate
Larger, i.e., the type of cooling after the tensile strength of wire rod and poker intensity homogeneity are rolled with wire rod is closely related.
In modern production of wirerods, use the cold mode of stelmor control, the high-speed rod after rolling passes through spinning more
Machine forms continual coiling, is then laid on stelmor cooling roller-way, is controlled by controlling the pace of roller-way
The stacking density of wire rod, and control wire rod cooling procedure, regulating roller by the way of subsection setup insulation cover, adjusting fan delivery
The cooling velocity of wire rod on road, achievees the purpose that to control wire rod intensity.In welding wire steel production, for the mesh for reducing wire rod intensity
, generally using low roller table speed, close insulation cover, close wind turbine by the way of to wire rod slow cooling, under such a type of cooling, this
The stack manner of edge and middle part wire rod is there are dramatically different on Tai Ermo cooling roller beds, and edge wire rod overlap joint phenomenon is serious, heap
It is slow to fold intensive cooling, and wire rod arrangement in middle part is loose and cools down rapidly, the tensile strength of same reel bar diverse location is often
There are larger difference., can with a batch of wire rod strength fluctuation for tensile strength in 500MPa and its steel alloy of the above
Reach 50-150MPa, even more high, and high tensile strength brought to the drawing Primary Processing of follow-up wire rod it is unfavorable.Difference is anti-
Work-hardening capacity of the wire rod of tensile strength in follow-up drawing is different, high-tensile wire rod work-hardening capacity meeting higher,
In drawing process, the tensile strength difference of semi-finished product and finished product can constantly increase, and can cause fracture of wire occur during drawing when serious,
Rhythm of production is seriously affected, improves throwing cost.Therefore how control spin after wire rod cooling procedure, reduce welding wire steel lead to
The cooling difference of bar wire rod, so that poker intensity homogeneity is improved while ensureing that wire rod intensity is relatively low, for follow-up drawing
Primary Processing is significant.
103406373 B of patent CN mention a kind of high-speed rod cooling device for hanging movement, are equipped with production line
Special spinneret, coiling steel supply line, coil a series of corollary equipments including steel collection device etc., by the entire volume disk after spinning
Bar is concentrated in collection device, is realized the insulation slow cooling of wire rod in the apparatus, is cooled down from being laid on roller-way, change into and hang over
Cooled down on steel wire rope, coiling steel poker is poor caused by solving the problems, such as the air-cooled line inhomogeneous cooling of stelmor.The one side party
The production line that method provides is only applicable to need the steel grade for carrying out delay chilling, needs standard type cold without other are produced at the same time
But, the ability of the steel grade of Cooling Mode, on the other hand the improvement cost of the production line is higher, and equipment is complicated, is unfavorable for letter
Change operation and reduce cost.
104307885 A of patent CN mention a kind of high line producer for controlling high-carbon steel wire rod with circle Mechanical Fluctuation
Method, this method ensure to coil being uniformly distributed on Stanermo wind-cooling linear, are started to walk by controlling by reducing the machine vibration that spins
The density degree of the speed control wire rod of roller-way, by controlling the good clever baffle controls of wind turbine to cool down wind speed, summary mode control
Wire rod processed uniformly cools down, to control wire rod even intensity.But in welding wire steel production, in order to reduce wire rod intensity.And welding wire steel is given birth to
Wire rod stacks intensive in production, can be limited come the effect of uniform wire rod cooling rate by reducing spinning machine vibration, and start to walk roller speed with
The control of good spirit baffle is even more to be not suitable for using herein.
103216789 A of patent CN mention a kind of welding wire steel manufacture method of low tensile strength, for the weldering of special component
Silk steel, control billet heating temperature, start rolling temperature, final rolling temperature, laying temperature and roller table speed, completes the slow cooling of welding wire steel.
But this method is only applicable to a certain extraordinary welding wire steel, and strength fluctuation is up to 40MPa.
At present, suitable for multi items wire steel rolling, ensure wire rod intensity reduced levels, poker tensile strength fluctuation it is small and
The production method of low cost is rarely reported.
The content of the invention
The object of the present invention is to provide a kind of production method for improving gas shield welding wire steel poker intensity homogeneity, pass through control
Spinneret service condition, spinning parameter and spinning back roller road situation, improve the annealing process of gas shield welding wire steel wire rod, reach reduction
And the effect of uniform wire rod intensity.
To achieve the above object, the present invention adopts the following technical scheme that：
(1) a kind of method for improving rolled wire poker characteristic uniformity, Ts=Fs+85 DEG C of laying temperature+(Vs/0.3m/
S) × 30 DEG C ± 10 DEG C, wherein Fs is phase transition temperature, and Vs is initial segment roller table speed, meets 0.13m/s≤Vs≤0.3m/s, is protected
Temperature cover, wind turbine Close All.
In wire-rod roll rolling process, in order to reduce wire rod intensity, it is necessary to reduce the cooldown rate of wire rod after spinning, make
Wire rod forms more soft phases in phase transition process.In the present invention, wire rod laying temperature is designed according to initial segment roller table speed, is spat
When silk temperature and the difference of starting temperature of transformation meet 85 DEG C+(Vs/0.3m/s) × 30 DEG C, to ensure that the phase transformation of wire rod occurs
Inside insulation cover；Initial segment roller speed 0.13-0.30m/s, ensure wire rod accumulation dense degree, with reference to insulation cover Close All,
Wind turbine Close All, comprehensive function reduce wire rod cooling rate so as to reduce wire rod tensile strength.
(2) spinneret produced Ф 6.0mm and its wire rod of dimensions above in advance, and spinneret output is in 200-
800t, vibration values are maintained at 3.0-3.5m/s, and Laying Radius is maintained at 0.9-1.1m.
In silking process, when other conditions are constant, spinneret state decides spinning cast, produces Ф 6.0mm in advance
And its spinneret of dimensions above wire rod can form a definite groove inside pipeline, production Ф 5.5mm and its with
During the welding wire steel of lower size, wire rod can advance along set groove, and spinning track is adequately controlled, and cast is neat；In addition, protect
Spinneret usage amount is demonstrate,proved in 200-800t, weakens due to spinneret uneven wear and causes spinning machine vibration, protect vibration values
Hold in 3.0-3.5m/s.Above-mentioned two aspects comprehensive function weakens due to the bad negative shadow even to wire rod inhomogeneous cooling of quality that spin
Ring.
(3) the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, long 1.2-1.5m,
Reciprocating frequency 50-60 times/min, amplitude 0.10-0.15m；
There is middle part wire rod be sparse and phenomenon that edge wire rod is intensive in traditional welding wire steel wire rod due to lopping dense accumulation,
The difference of cooling velocity at two is caused, causes the difference of intensity.By reequiping the initial segment roller-way of length 1.2-1.5m, make its with
50-60 times/min's of the frequency is interspersed perpendicular to roller-way forward direction motion, control wire rod, wire rod overlapped points is scatter,
Reduce wire rod temperature difference in cooling procedure, help to balance wire rod intensity, keep amplitude to prevent from enclosing in 0.10-0.15m
Shape is chaotic.
(4) the 4th section of stelmor cooling roller-way sets the pushing meanss that can step up at the same time to center, and long 1.2-1.5m is past
Multiple motion frequency 15-20 times/min, amplitude 0.05-0.10m；
During wire rod forwards transportation, since roller table speed is constantly accelerated, wire rod spacing slightly widens, and temperature constantly drops
Low, at this moment the different parts temperature difference constantly increases, wire rod temperature drift at overlapped points, and wire rod temperature is relatively low at non-overlapping point, control
Wire rod is close to center at the same time in advance, and the initial overlapped points of wire rod are able to the changing of the relative positions, and further uniformly follow-up wire rod is cooled
Journey.Clamping device length 1.2-1.5m, is moved back and forth, amplitude 0.05-0.10m, makes wire rod in mistake with the frequency of 15-20 times/min
It is unlikely to scratch while dynamic, influences wire rod surface quality.
Compared with prior art, beneficial effects of the present invention are at least embodied in following two aspects：
(1) present invention is by controlling laying temperature, control spinneret service condition, control initiating terminal roller-way move back and forth and
The clamping device of roller-way fourth stage is designed, the maximum pulling strength of wire rod, drops in the cooldown rate of uniform diverse location wire rod
Low >=30MPa, poker strength fluctuation≤20MPa, reduces wire rod tensile strength, improves the uniform of wire rod poker tensile strength
Property, and easy easily implementation, it is adapted to a variety of gas shield welding wire steel produced on-sites.
(2) wire-rod roll that the present invention designs wire broken rate after drawing can be reduced to 0.1 time/ton and following, reduction wire drawing
Cost, improves production efficiency.
Brief description of the drawings
Fig. 1 is wire rod distribution schematic diagram on initial segment roller-way in steel embodiment 1 of the present invention；
Fig. 2 is wire rod distribution schematic diagram on initial segment roller-way in steel comparative example 1 of the present invention；
Fig. 3 embodiments and comparative example Tensile strength data statistical result.
Embodiment
The present invention is described in further detail with comparative example with reference to embodiment.Embodiment is used with comparative example
Walking beam furnace-high pressure water dephosphorization-multi-pass high-speed rolling-spinning-stelmor delaying type cooling technology route, it is cooled
Journey insulation cover Close All, wind turbine Close All, collects volume after cooling.
1st, embodiment 1 is carried out in 600MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+98 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.13m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.5m, reciprocating frequency 50 times/min, amplitude 0.15m；
2nd, embodiment 2 is carried out in 550MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+100 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.15m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.4m, reciprocating frequency 52 times/min, amplitude 0.13m；
3rd, embodiment 3 is carried out in 550MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+107 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.22m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.3m, reciprocating frequency 57 times/min, amplitude 0.12m；
4th, embodiment 4 is carried out in 500MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+115 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.30m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.2m, reciprocating frequency 60 times/min, amplitude 0.10m；
5th, embodiment 5 is carried out in 600MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+98 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.13m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.5m, reciprocating frequency 50 times/min, amplitude 0.15m；The 4th section of stelmor cooling roller-way promotes dress
Put long 1.5m, reciprocating frequency 15 times/min, amplitude 0.10m；
6th, embodiment 6 is carried out in 550MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+100 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.15m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.4m, reciprocating frequency 52 times/min, amplitude 0.13m；The promotion that the 4th section of stelmor cooling roller-way
The long 1.4m of device, reciprocating frequency 17 times/min, amplitude 0.08m；
7th, embodiment 7 is carried out in 550MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+107 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.22m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.3m, reciprocating frequency 57 times/min, amplitude 0.12m；The promotion that the 4th section of stelmor cooling roller-way
Device, long 1.3m, reciprocating frequency 19 times/min, amplitude 0.07m；
8th, embodiment 8 is carried out in 500MPa grades of wire rods.Spinneret uses first, and laying temperature meets Ts=Fs+115 DEG C
± 10 DEG C, initial segment roller table speed Vs=0.30m/s, the initial segment of stelmor cooling roller-way can be perpendicular to roller-way direction of advance
Move reciprocatingly, long 1.2m, reciprocating frequency 60 times/min, amplitude 0.10m；The promotion that the 4th section of stelmor cooling roller-way
Device, long 1.2m, reciprocating frequency 20 times/min, amplitude 0.05m；
9th, embodiment 9 is carried out in 600MPa grades of wire rods.Spinneret used produced 800t, the 60# steel of Ф 6.0mm in advance
Wire rod, Laying head vibration values are maintained at 3.5m/s.Laying temperature meets Ts=Fs+98 DEG C ± 10 DEG C, initial segment roller table speed Vs
=0.13m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, long 1.5m, back and forth
Motion frequency 50 times/min, amplitude 0.15m；The 4th section of long 1.5m of pushing meanss of stelmor cooling roller-way, reciprocating frequency
15 times/min, amplitude 0.10m；
10th, embodiment 10 is carried out in 550MPa grades of wire rods.Spinneret used produced 600t, the 60# of Ф 6.5mm in advance
Steel wire rod, Laying head vibration values are maintained at 3.4m/s.Laying temperature meets Ts=Fs+100 DEG C ± 10 DEG C, initial segment roller table speed
Vs=0.15m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, and long 1.4m is past
Multiple motion frequency 52 times/min, amplitude 0.13m；The long 1.4m of pushing meanss of the 4th section of stelmor cooling roller-way, moves back and forth
Frequency 17 times/min, amplitude 0.08m；
11st, embodiment 11 is carried out in 550MPa grades of wire rods.Spinneret used produced 500t, the 60# of Ф 6.5mm in advance
Steel wire rod, Laying head vibration values are maintained at 3.2m/s.Laying temperature meets Ts=Fs+107 DEG C ± 10 DEG C, initial segment roller table speed
Vs=0.22m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, and long 1.3m is past
Multiple motion frequency 57 times/min, amplitude 0.12m；The pushing meanss that the 4th section of stelmor cooling roller-way, long 1.3m, moves back and forth
Frequency 19 times/min, amplitude 0.07m；
12nd, embodiment 12 is carried out in 500MPa grades of wire rods.Spinneret used produced 200t, the 60# of Ф 6.0mm in advance
Steel wire rod, Laying head vibration values are maintained at 3.0m/s.Laying temperature meets Ts=Fs+115 DEG C ± 10 DEG C, initial segment roller table speed
Vs=0.30m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, and long 1.2m is past
Multiple motion frequency 60 times/min, amplitude 0.10m；The pushing meanss that the 4th section of stelmor cooling roller-way, long 1.2m, moves back and forth
Frequency 20 times/min, amplitude 0.05m；
13rd, comparative example 1 is carried out in 600MPa grades of wire rods, ± 10 DEG C of Ts=Fs+140 DEG C of laying temperature, wherein Vs=
0.3m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, long 1.2m, move back and forth
Frequency 60 times/min, amplitude 0.10m；
14th, comparative example 2 is carried out in 550MPa grades of wire rods, ± 10 DEG C of Ts=Fs+100 DEG C of laying temperature, wherein Vs=
0.3m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, long 1.5m, move back and forth
Frequency 50 times/min, amplitude 0.15m；
15th, comparative example 3 is carried out in 550MPa grades of wire rods, ± 10 DEG C of Ts=Fs+125 DEG C of laying temperature, wherein initial segment
Roller table speed Vs=0.4m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, long
1.3m, reciprocating frequency 54 times/min, amplitude 0.13m；
16th, comparative example 4 is carried out in 500MPa grades of wire rods, ± 10 DEG C of Ts=Fs+125 DEG C of laying temperature, wherein initial segment
Roller table speed Vs=0.4m/s, using traditional stelmor cooling roller-way.
1 embodiment performance statistics of table
Claims (3)
1. it is a kind of improve rolled wire poker characteristic uniformity method, it is characterised in that laying temperature meet Ts=Fs+85 DEG C+
(Vs/0.3m/s) × 30 DEG C ± 10 DEG C, wherein Fs is phase transition temperature, and Vs is initial segment roller table speed, meet 0.13m/s≤Vs≤
0.3m/s, the initial segment of stelmor cooling roller-way can move reciprocatingly perpendicular to roller-way direction of advance, long 1.2-1.5m, back and forth
Motion frequency 50-60 times/min, amplitude 0.10-0.15m.
2. the production method according to claim 1, it is characterised in that the 4th section of stelmor cooling roller-way is set can be at the same time
The pushing meanss stepped up to center, long 1.2-1.5m, reciprocating frequency 15-20 times/min, amplitude 0.05-0.10m.
3. production method according to claim 1, it is characterised in that spinneret used produced in advance Ф 6.0mm and its with
The wire rod of upper size, and spinneret output is 200-800t, Laying head vibration values are maintained at 3.0-3.5m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950853.0A CN107983769A (en) | 2016-10-27 | 2016-10-27 | A kind of method for improving rolled wire poker characteristic uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950853.0A CN107983769A (en) | 2016-10-27 | 2016-10-27 | A kind of method for improving rolled wire poker characteristic uniformity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107983769A true CN107983769A (en) | 2018-05-04 |
Family
ID=62029237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610950853.0A Withdrawn CN107983769A (en) | 2016-10-27 | 2016-10-27 | A kind of method for improving rolled wire poker characteristic uniformity |
Country Status (1)
| Country | Link |
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| CN (1) | CN107983769A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555022A (en) * | 2018-04-03 | 2018-09-21 | 江苏省沙钢钢铁研究院有限公司 | A method of improving rolled wire poker characteristic uniformity |
| CN109465566A (en) * | 2018-11-21 | 2019-03-15 | 首钢集团有限公司 | Improve production method of the high-strength weathering gas shield welding wire with wire rod with circle performance |
| CN110434182A (en) * | 2019-08-30 | 2019-11-12 | 广东韶钢松山股份有限公司 | The control method of wire rod ring |
-
2016
- 2016-10-27 CN CN201610950853.0A patent/CN107983769A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555022A (en) * | 2018-04-03 | 2018-09-21 | 江苏省沙钢钢铁研究院有限公司 | A method of improving rolled wire poker characteristic uniformity |
| CN109465566A (en) * | 2018-11-21 | 2019-03-15 | 首钢集团有限公司 | Improve production method of the high-strength weathering gas shield welding wire with wire rod with circle performance |
| CN109465566B (en) * | 2018-11-21 | 2021-05-25 | 首钢集团有限公司 | Production method for improving same-circle performance of wire rod for high-strength weather-resistant gas-shielded welding wire |
| CN110434182A (en) * | 2019-08-30 | 2019-11-12 | 广东韶钢松山股份有限公司 | The control method of wire rod ring |
| CN110434182B (en) * | 2019-08-30 | 2021-06-01 | 广东韶钢松山股份有限公司 | Control method of wire coil shape |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180504 |
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| WW01 | Invention patent application withdrawn after publication |