CN106337109A - Anti-breaking device on continuous annealing processing line for thick type high strength strip steel - Google Patents
Anti-breaking device on continuous annealing processing line for thick type high strength strip steel Download PDFInfo
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- CN106337109A CN106337109A CN201611002779.6A CN201611002779A CN106337109A CN 106337109 A CN106337109 A CN 106337109A CN 201611002779 A CN201611002779 A CN 201611002779A CN 106337109 A CN106337109 A CN 106337109A
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- burner
- branch road
- high strength
- continuous annealing
- igniter
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses an anti-breaking device on continuous annealing processing line for thick type high strength strip steel. The device comprises: heating and annealing unit, linear burner and igniter which is installed on the linear burner. Rollers are mounted below the linear burner and also below the strip steel; the gas feeding pipe, wherein both sides of the fuel gas feeding branch are connected to the fuel gas sources and the mixer respectively. Both sides of the air feeding branch are connected to the air source and mixer respectively. Both sides of the ignition branch are connected to the fuel gas feeding branch and igniter respectively; the control unit, wherein the ignition conductor with the igniter is connected to the linear burner and also adjacent to the igniter, the temperature monitor is located above the linear burner, the flame detector is disposed in the linear burner, PLC controller is linked to the electrical parts. The invention upgrades the quality of thick type high strength strip steel, eradicates the stress of the welding seam, increases the toughness and strength of the welding seam, makes sure the welding seam not to break due to the repeated bending and extending on the processing line.
Description
Technical field
The invention belongs to Ferrous Metallurgy, cold rolling production equipment technical field, more particularly, to one kind are used for the high-strength band of think gauge
The anti-tape cutter of steel continuous annealing treatment production line, makes annealing treatment to the attachment weld of two strip steel of in front and back, eliminates weldering
The stress of seam.
Background technology
Continuous annealing treatment production line is the cold rolling main process line producing strip steel.Continuous annealing treatment production line include into
Mouth section equipment, central sections vertical annealing furnace, planisher and outlet section equipment.In entrance passage, in strip steel 100 moving direction
Entrance welding machine 200, width notcher 400 and idler roller a500, idler roller b600 are set gradually on transport channel, strip steel is entering production
Before line, by entrance welding machine, two strip steel of in front and back are welded, after the completion of welding, the idler roller a500 on line and idler roller b600
Drive strip steel forward it is achieved that high speed (maximal rate is 600m/min) in annealing production line for the strip steel continuously produces.
The entrance welding machine that continuous annealing treatment production line uses at present is narrow overlap resistance welding machine, and this welding machine is on the thick rule of welding
When lattice (more than 1.4mm), high strength band steel (more than dp600 steel grade), the welding quality of strip steel is subject to welding machine body equipment and band rigidity
The impact of energy is larger, and welding condition is difficult to accurately select it is impossible to ensure the reliability and stability welded, and strip steel weld joint exists
Under production line alternating bending and stretching action, it is easy to the broken belt accident occurring weld seam to snap or neatly rupture and cause, generally
The outer broken belt process time of stove needs 8-12 hour, and in stove, broken belt process time needs 28-32 hour, and the broken belt accident treatment time is long, no
Only affect normal production, and cause larger economic loss；Additionally, more seriously, due to above-mentioned restriction, our company
The production order of think gauge high strength car sheet cannot be accepted at all.
Content of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide at a kind of think gauge high strength band steel continuous annealing
Reason production line anti-tape cutter, improve think gauge high-strength steel welding quality, it is to avoid occur weld seam snap or neatly fracture and
The broken belt accident causing.
In order to realize above-mentioned goal of the invention, the present invention employs the following technical solutions:
A kind of anti-tape cutter of think gauge high strength band steel continuous annealing treatment production line, be arranged at entrance welding machine and width notcher it
Between, this device includes supply air line, heating anneal unit and control unit, and described heating anneal unit has a linear burner
And an igniter burner, igniter burner is arranged on linear burner, is provided with roller and is placed under strip steel on the downside of linear burner
Side；Described supply air line has a gas inlet branch road, an air inlet branch road, an igniting branch road and a blender, wherein fires
Gas air inlet branch road one end connects fuel gas source, and the other end connects blender, and air inlet branch road one end connects air source, and the other end is even
Connect blender, gaseous mixture is connected to combustion by the air inlet pipe conveying extending to immediately below above-mentioned linear burner, igniting branch road one end
In gas air inlet branch road, the other end connects above-mentioned igniter burner；Described control unit have a plc controller, a temperature monitor,
One flame detector and a lighter, the harness of lighter is connected on above-mentioned linear burner, and is located at igniter burner
Side, temperature monitor is placed in the top of above-mentioned linear burner, for the heating-up temperature of real-time detection strip steel weld joint；Flame is examined
Survey device to be arranged in above-mentioned linear burner, for timely feedback linearization burner stable burning, close igniter burner；Plc is controlled
Device processed respectively with temperature monitor, flame detector, lighter, the motor of drive mechanism, the electromagnetic valve a of air inlet branch road and
Regulating valve a, the electromagnetic valve b of gas inlet branch road and regulating valve b, the electromagnetic valve c of igniting branch road realize electrical connection, and plc controls
Logical interlock control realized by the controller of device and above-mentioned entrance welding machine.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described plus
Thermal annealing unit includes linear burner, igniter burner and the drive mechanism for driving linear burner to move back and forth；Linearly
Burner has a car body with cavity and is placed in row's circular hole burner on cavity, and the length of circular hole burner arrangement is 1.8m,
Gaseous mixture is delivered in cavity air inlet pipe, the combustion gas here burning coming from blender, and to think gauge high strength band steel, weld seam heats
To 650 DEG C～750 DEG C, natural cooling is annealed, and effective width of heating 50mm(is more than 13mm weld width)；Due to circular hole burner with
There is the gap of 3-4mm, in order to ensure circular hole burner heating uniformity, the vehicle bottom of linear burner sets between circular hole burner
It is equipped with four rolling, drive mechanism connects linear burner, carries out reciprocal 50mm motion in strip steel weld joint direction.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described confession
Air pipe includes gas inlet branch road, air inlet branch road, igniting branch road and blender, and air inlet props up route pipeline and sets successively
There are air source, ball valve of calming the anger, pressure of compressed air table, electromagnetic valve a and regulating valve a and connect to blender, gas inlet props up route pipe
Road is sequentially provided with fuel gas source, fuel gas ball valve, gas pressure gage, electromagnetic valve b and regulating valve b and connects to blender；Igniting branch road
Be connected on the pipeline between electromagnetic valve b and regulating valve b, igniting branch road pipeline on be sequentially provided with regulating valve c and electromagnetic valve c and
Connect to igniter burner.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described drive
Motivation structure includes motor, pedestal and crank connecting link, and motor is vertically arranged, crank connecting link lower end be connected to motor output shaft and by
Pedestal limits, and upper end is limited by pedestal.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described enter
One section of metal hose is equipped with trachea and igniting branch road, the collapsing length of metal hose is more than 50mm, above-mentioned linear burner
When reciprocating it is ensured that supply stability and reliability.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described temperature
Degree detector is noncontact electric thermo-couple temperature detector, its model bte-tc, associated technical parameters: 1), type: K-type；2),
Temperature-measuring range: 0～1300 DEG C；3), export: the strip steel weld joint temperature (5 DEG C of precision +/-) of heating is delivered to and is moved back by 4～20ma in real time
Fiery Setup Controller, and design temperature compares, when equal, annealing device controller sends " annealing completes " information to welding machine control
Device processed.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described fire
Flame detector is the ultraviolet flame detector of market sale, its model jzs-102, associated technical parameters: 1), power supply 220v
±10% 50/60hz；2), fire defector uv sensor；3), detect response time≤0.2 second；4) spectral response range
190/280nm；5), sensor and controller line≤20 meter.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described point
Firearm is high-energy igniter, its model dgs-03, associated technical parameters: 1), supply voltage 220v ± 10% 50hz；2), fit
Use fuel gas；3), output voltage 2500v；4), spark rate 10hz；5), arc light energy 3j；6), igniter head is resistance to
Temperature is long-term 1300 DEG C.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described plc
Controller is siemens plc s7-200.
In the anti-tape cutter of above-mentioned think gauge high strength band steel continuous annealing treatment production line, optionally, described combustion
Source of the gas is propane, natural gas or mixed gas, and described air source is compressed air or combustion fan, and the optimal combustion gas of the present invention makes
With propane, air uses compressed air, and pressure is 0.05mba.
During using the present invention, it is first turned on calm the anger ball valve, fuel gas ball valve and regulating valve c, ignitor is for ignition condition；Enter
Before and after mouth welding machine controller 201 control, in entrance welding machine 200 welding position, welding completes for the overlapping the slot end to end of two strip steel 100
Afterwards, idler roller 500 and 600 is controlled to drive strip steel to walk forward, rotating pulse generator 700 number of delivering letters on idler roller 500 arrives
Entrance welding machine controller 201 note calculates the distance of walking, when reaching fixed range 1220mm, controls idler roller to drive and stops, sending
" Relocation complete signal " gives plc controller, and after plc controller receives " Relocation complete signal ", plc controller first sends igniting letter
Number, lighter produces continuous impulse high voltage discharge spark before igniter burner, then opens igniter solenoid valve, and combustion gas is in a baked wheaten cake
Ignite at mouth burning, flame detector detects stable burning, close ignition signal, linear burner can be lighted a fire；Band
After steel weld seam positions above linear burner, plc controller first opens regulating valve to igniting amount, opens within latter 3 seconds combustion gas and adjusts
To igniting amount, combustion gas is sufficiently mixed valve in gaseous mixture and air, through metal hose, delivers to linear burner and lights a fire, 3 seconds
Afterwards, air, gas control valve are all adjusted to heating quantity combusted；After linear burner igniting, close igniter solenoid valve, igniter burner
Close；Temperature monitor detects temperature and reaches 650 DEG C～750 DEG C of design temperature, and plc controller sends cut out burner and refers to
Order: first close gas control valve, close air control valve after 5 seconds；Plc controller sends " annealing completes signal " and feeds a mouthful welding machine
Controller, entrance welding machine controller receives this signal, drives idler roller to run, completes a post annealing cycle.
Compared with prior art, the beneficial effect that the present invention enables at least includes the following aspects:
1) after, the anti-tape cutter of the present invention is arranged on entrance welding machine, before width notcher, compact conformation, rationally distributed, take up an area space
Little；
2), after the welding of think gauge high strength band steel, the heating anneal unit of the anti-tape cutter of the present invention heats to face of weld
Anneal to 700 DEG C～750 DEG C, the effective width of heating of linear heat device is 50mm, meets the requirement of weld width 13mm；
3), the reciprocal 50mm motor function of linear burner, it is ensured that heating anneal is uniform on strip steel weld joint direction, eliminates stress,
Increase welding line joint toughness and intensity it is ensured that weld seam not broken belt in the case of production line alternating bending and stretching；
4), the anti-tape cutter of the present invention selects plc controller, and valve, pipeline, detection, sequencing contro design safety are reliable, in addition
Logical interlock control realized by the controller of plc controller and entrance welding machine, further enhancing the security reliability of the present invention；
5), the present invention produces the energy saving requirement that the strip steel obtaining meets Automobile Plate lightweight high strengthening, improves the market of enterprise
Competitiveness, is effectively promoted the fast development of enterprise.
Brief description
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the mounting structure schematic diagram of the present invention；
Fig. 2 is the anti-tape cutter structural representation of think gauge high strength band steel continuous annealing treatment production line.
In figure: 100- strip steel, 200- entrance welding machine, 201- entrance welding machine controller, the anti-tape cutter of 300-, 301- combustion gas
Ball valve, 302- gas pressure gage, 303- electromagnetic valve b, 304- regulating valve b, 305- are calmed the anger ball valve, 306- pressure of compressed air table, 307-
Electromagnetic valve a, 308- regulating valve a, 309- blender, 310- regulating valve c, 311- electromagnetic valve c, 312- metal hose, 313- igniting
Device, 314- igniter burner, 315- flame detector, 316- air inlet pipe, 317- temperature monitor, 318- pedestal, 319- crank are even
Bar, 320- linear burner, 321- roller, 322- motor, 323-plc controller, 400- width notcher, 500- idler roller a, 600-
Idler roller b, 700- pulse generator.
Specific embodiment
Firstly, it is necessary to explanation, think gauge high strength band steel of the present invention below will be illustrated by way of example continuous
The annealing feature of anti-tape cutter of production line and advantage etc., but what all of description was intended merely to illustrate, and
Should not be construed as the present invention is formed any restriction.Additionally, being described by embodiment each mentioned by this paper or implicit
Arbitrarily single technical characteristic, or shown or implicit arbitrarily single technical characteristic in the drawings, still can be at these
Proceed combination in any between technical characteristic (or its equivalent) or delete, thus obtain herein directly not carry
And the present invention more other embodiments.
The embodiment being just given by this below is come to think gauge high strength band steel continuous annealing treatment production line of the present invention
Anti- tape cutter illustrative.
As shown in Figure 1 and Figure 2, the anti-tape cutter of the think gauge high strength band steel continuous annealing treatment production line of the present invention
300, it is arranged between entrance welding machine 200 and width notcher 400, this device includes supply air line, heating anneal unit and controls single
Unit.
In fig. 2, the heating anneal unit of the anti-tape cutter of the present invention 300 has a linear burner 320 and an igniting
Burner 314, igniter burner 314 is arranged on linear burner 320, is provided with roller 321 and is placed in band on the downside of linear burner 320
The lower section of steel 100；
On the basis of said structure, the supply air line of the anti-tape cutter of the present invention 300 has a gas inlet branch road, an air
Air inlet branch road, an igniting branch road and a blender 309, wherein gas inlet branch road one end connects fuel gas source, and the other end connects mixed
Clutch 309, air inlet branch road one end connects air source, and the other end connects blender 309, and gaseous mixture is above-mentioned linear by extending to
Air inlet pipe 316 immediately below burner conveys, and igniting branch road one end is connected on gas inlet branch road, and the other end connects above-mentioned point
Burn mouth 314；
Further, the control unit of the anti-tape cutter of the present invention 300 have a plc controller 323, a temperature monitor 317,
One flame detector 315 and a lighter 313, the harness of lighter 313 is connected on above-mentioned linear burner 320, and
Positioned at igniter burner 314 side, temperature monitor 317 is placed in the top of above-mentioned linear burner 320, for real-time detection strip steel
The heating-up temperature of weld seam；Flame detector 315 is arranged in above-mentioned linear burner 320, for timely feedback linearization burner
Stable burning, closes igniter burner；Plc controller 323 respectively with temperature monitor 317, flame detector 315, lighter
313rd, the electromagnetism of the motor 322 of drive mechanism, the electromagnetic valve a307 of air inlet branch road and regulating valve a308, gas inlet branch road
The electromagnetic valve c311 of valve b303 and regulating valve b304, igniting branch road realizes electrical connection, plc controller 323 and above-mentioned entrance weldering
Logical interlock control realized by the controller of machine 201.
In the present embodiment, the heating anneal unit of the present invention includes linear burner 320, igniter burner 314 and is used for
Drive the drive mechanism that linear burner 320 moves back and forth；Linear burner 320 has a car body with cavity and is placed in cavity
On row's circular hole burner, the length of circular hole burner arrangement is 1.8m, and gaseous mixture is delivered in cavity air inlet pipe 316, from mixed
The combustion gas here burning of clutch 309, to think gauge high strength band steel, such as the think gauge high strength band steel model that our company produces
Dp600:2.0～2.5mm, dp780:1.6～2.5mm, dp980:1.4～2.5mm, trip600:1.6～2.5mm,
Trip780:1.4～2.5mm, 22mnb5:1.4～2.5mm, weld seam is heated to 650 DEG C～750 DEG C, and natural cooling is annealed, and has
Effect width of heating 50mm(is more than 13mm weld width)；Due to there is the gap of 3～4mm between circular hole burner and circular hole burner,
In order to ensure circular hole burner heating uniformity, the vehicle bottom of linear burner is provided with four rolling 321, and drive mechanism connects
Linear burner 320, carries out reciprocal 50mm motion in strip steel weld joint direction.
In the present embodiment, the supply air line of the present invention include gas inlet branch road, air inlet branch road, igniting branch road and
Blender 309, air inlet props up route pipeline and is sequentially provided with air source, ball valve 305 of calming the anger, pressure of compressed air table 306, electromagnetic valve
A307 and regulating valve a308 and connect to blender 309, gas inlet props up route pipeline and is sequentially provided with fuel gas source, fuel gas ball valve
301st, gas pressure gage 302, electromagnetic valve b303 and regulating valve b304 and connect to blender 309；Igniting branch road is connected to electromagnetism
On pipeline between valve b303 and regulating valve b304, the pipeline of igniting branch road is sequentially provided with regulating valve c310 and electromagnetic valve c311
And connect to igniter burner 314.
In the present embodiment, the drive mechanism of the present invention includes motor 322, pedestal 318 and crank connecting link 319, and motor erects
To setting, crank connecting link 319 lower end is connected to the output shaft of motor and is limited by pedestal, and upper end is limited by pedestal.
In the present embodiment, the air inlet pipe 316 of the present invention and igniting branch road are equipped with one section of metal hose 312, metal
The collapsing length of flexible pipe 312 be more than 50mm, above-mentioned linear burner 320 when reciprocating it is ensured that supply stability
And reliability.
In the present embodiment, the temperature monitor 317 of the present invention is noncontact electric thermo-couple temperature detector, its model
Bte-tc, associated technical parameters: 1), type: K-type；2), temperature-measuring range: 0～1300 DEG C；3), export: 4～20ma, in real time will
The strip steel weld joint temperature (5 DEG C of precision +/-) of heating delivers to annealing device controller, and design temperature compares, when equal, annealing
Setup Controller sends " annealing completes " information to welding machine controller.
In the present embodiment, the flame detector 315 of the present invention is the ultraviolet flame detector of market sale, its model
For jzs-102, associated technical parameters: 1), power supply 220v ± 10% 50/60hz；2), fire defector uv sensor；3), detect
Response time≤0.2 second；4) spectral response range 190/280nm；5), sensor and controller line≤20 meter.
In the present embodiment, the lighter 313 of the present invention is high-energy igniter, its model dgs-03, and correlation technique is joined
Number: 1), supply voltage 220v ± 10% 50hz；2), it is suitable for fuel gas；3), output voltage 2500v；4), igniting frequency
Rate 10hz；5), arc light energy 3j；6), igniter head heatproof is long-term 1300 DEG C.
In the present embodiment, the plc controller 323 of the present invention is siemens plc s7-200.
In the present embodiment, the fuel gas source of the present invention is propane, natural gas or mixed gas, air source be compressed air or
Combustion fan, the optimal combustion gas of the present invention uses propane, and air uses the pressure of compressed air, propane and compressed air to be
0.05mba.
During using the present invention, it is first turned on calm the anger ball valve 305, fuel gas ball valve 301 and regulating valve c310, lighter 313 has
Standby ignition condition；Before and after entrance welding machine controller 201 control, the overlapping the slot end to end of two strip steel 100 is welded in entrance welding machine 200
After the completion of the welding of position, idler roller a500, idler roller b600 is controlled to drive strip steel to walk forward, the rotation arteries and veins on idler roller a500
Rush generator 700 number of delivering letters and arrive the distance that entrance welding machine controller 201 note calculates walking, when reaching fixed range 1220mm, control
Idler roller a500, idler roller b600 drive and stop, and send " Relocation complete signal " to plc controller 323, plc controller receives
After " Relocation complete signal ", plc controller first sends ignition signal, and lighter 313 produces continuous impulse high voltage in a baked wheaten cake
Discharge spark before mouth 314, then open igniter solenoid valve, combustion gas is ignited burning at igniter burner 314, and flame detector 315 is examined
Measure stable burning, close ignition signal, linear burner 320 can be lighted a fire；Strip steel weld joint is on linear burner 320
After Fang Dingwei, plc controller 323 first opens regulating valve a308 to igniting amount, opens within latter 3 seconds gas control valve b304 to igniting
Amount, combustion gas is sufficiently mixed in gaseous mixture and air, through metal hose 312, delivers to linear burner 320 and lights a fire, 3 seconds
Afterwards, air control valve a, gas control valve b are adjusted to heating quantity combusted；After linear burner 320 igniting, close igniting electromagnetism
Valve, igniter burner 314 is closed；Temperature monitor 317 detects temperature and reaches 650 DEG C～750 DEG C of design temperature, plc controller
323 send closing burner instruction: first close gas control valve b, close air control valve a after 5 seconds；Plc controller sends and " moves back
Fire completes signal " feed mouthful welding machine controller 211, entrance welding machine controller receives this signal, drives idler roller a500, idler roller
B600 runs, and completes a post annealing cycle.
Choose several think gauge high strength band steels below to illustrate:
Comparative example 1
Carry out the thickness 1.8mm of soldering test: trip780, wide 1280mm from steel grade trip780 high-strength steel, by welding machine handbook
Select welding current 25.5ka, electrode pressure 1894dan, amount of lap fore side 1.3mm, transmission side 3.0mm, the welding wheel speed of travel
12m/min, does saucer test, saucer all snaps unqualified after welding.
Embodiment 1
Carry out the thickness 1.8mm of soldering test: trip780, wide 1280mm from steel grade trip780 high-strength steel, select and contrast
The same welding current 25.5ka of example 1, electrode pressure 1894dan, amount of lap fore side 1.3mm, transmission side 3.0mm, welding wheel row
Walk speed 12m/min, with assembly of the invention, weld seam is processed after welding, do saucer test, saucer is all qualified.
Comparative example 2
Carry out the thickness 2.0mm of soldering test: dp780, wide 1250mm from steel grade dp780 high-strength steel, select by welding machine handbook
Welding current 26.7ka, electrode pressure 2044dan, amount of lap fore side 1.41mm, transmission side 3.24mm, the welding wheel speed of travel
11m/min, does saucer test, saucer all snaps unqualified after welding.
Embodiment 2
Carry out the thickness 2.0mm of soldering test: dp 780, wide 1250mm from steel grade dp780 high-strength steel, select and comparative example 2
Same welding current 26.7ka, electrode pressure 2044dan, amount of lap fore side 1.41mm, transmission side 3.24mm, welding wheel walking
Speed 11m/min, is processed to weld seam with assembly of the invention after welding, does saucer test, and saucer is all qualified.
Comparative example 3
Carry out the thickness 2.2mm of soldering test: dp980, wide 1180 mm from steel grade dp980 high-strength steel, select by welding machine handbook
Welding current 28.8ka, electrode pressure 2194dan, amount of lap fore side 1.52 mm, transmission side 3.42 mm, the welding wheel speed of travel
10 m/min, do saucer test, saucer all snaps unqualified after welding.
Embodiment 3
Carry out the thickness 2.2mm of soldering test: dp 980, wide 1180 mm from steel grade dp 980 high-strength steel, select and comparative example
3 same welding current 28.8 ka, electrode pressure 2194dan, amount of lap fore side 1.52 mm, transmission side 3.42 mm, welding wheel
The speed of travel 10 m/min, is processed to weld seam with assembly of the invention after welding, does saucer test, and saucer is all qualified.
Comparative example 4
Carry out the thickness 2.5mm of soldering test: dp600, wide 1300 mm from steel grade dp600 high-strength steel,
Select welding current 29.8ka, electrode pressure 2419dan, amount of lap fore side 1.69mm, transmission side by welding machine handbook
3.71mm, welding wheel speed of travel 9m/min, do saucer test, saucer all snaps unqualified after welding.
Embodiment 4
Carry out the thickness 2.5mm of soldering test: dp600, wide 1300mm from steel grade dp600 high-strength steel, select same with comparative example 4
The welding current 29.8ka of sample, electrode pressure 2419dan, amount of lap fore side 1.69mm, transmission side 3.71mm, welding wheel walking speed
Degree 9m/min, is processed to weld seam with assembly of the invention after welding, does saucer test, and saucer is all qualified.
Below only to elaborate the anti-of think gauge high strength band steel continuous annealing treatment production line of the present invention by way of example
This few example of tape cutter only principle and embodiments thereof for the explanation present invention are used, rather than limitation of the present invention, not
In the case of departing from the spirit and scope of the present invention, those skilled in the art can also make various modifications and improvement.Therefore, institute
Have that equivalent technical scheme all should belong to scope of the invention and the every claim by the present invention is limited.
Claims (10)
1. a kind of anti-tape cutter (300) of think gauge high strength band steel continuous annealing treatment production line is it is characterised in that this is anti-breaking
Belting (300) is arranged between entrance welding machine (200) and width notcher (400), it include supply air line, heating anneal unit and
Control unit,
Described heating anneal unit has a linear burner (320) and an igniter burner (314), and igniter burner (314) is arranged
On linear burner (320), it is provided with roller (321) on the downside of linear burner (320) and is placed in the lower section of strip steel (100)；
Described supply air line has a gas inlet branch road, an air inlet branch road, an igniting branch road and a blender (309),
Wherein gas inlet branch road one end connects fuel gas source, and the other end connects blender (309), and air inlet branch road one end connects air
Source, the other end connects blender (309), and gaseous mixture is by the air inlet pipe (316) extending to immediately below above-mentioned linear burner (320)
Conveying, igniting branch road one end is connected on gas inlet branch road, and the other end connects above-mentioned igniter burner (314)；
Described control unit has a plc controller (323), a temperature monitor (317), a flame detector (315) and
Lighter (313), the harness of lighter (313) is connected on above-mentioned linear burner (320), and is located at igniter burner
(314) side, temperature monitor (317) is placed in the top of above-mentioned linear burner (320), for real-time detection strip steel weld joint
Heating-up temperature；Flame detector (315) is arranged in above-mentioned linear burner (320), for timely feedback linearization burner stable
Fixed burning, closes igniter burner；Plc controller (323) respectively with temperature monitor (317), flame detector (315), igniting
Device (313), the motor (322) of drive mechanism, the electromagnetic valve a(307 of air inlet branch road) and regulating valve a(308), gas inlet
The electromagnetic valve b(303 of branch road) and regulating valve b(304), igniting branch road electromagnetic valve c(311) realize electrical connection, plc controller
(323) realize logical interlock control with above-mentioned entrance welding machine controller (201).
2. the anti-tape cutter of think gauge high strength band steel continuous annealing treatment production line according to claim 1, its feature
It is, described heating anneal unit includes linear burner (320), igniter burner (314) and is used for driving linear burner
(320) drive mechanism moving back and forth；Linear burner (320) has a car body with cavity and is placed in the row's circle on cavity
Hole burner, the length of circular hole burner arrangement is 1.8m, and gaseous mixture is delivered in cavity air inlet pipe (316), from blender (309)
The combustion gas here burning coming；The vehicle bottom of linear burner (320) is provided with four rolling (321), drive mechanism connecting line
Property burner, carries out reciprocal 50mm motion in strip steel weld joint direction.
3. the anti-tape cutter of think gauge high strength band steel continuous annealing treatment production line according to claim 1 and 2, it is special
Levy and be, described supply air line includes gas inlet branch road, air inlet branch road, igniting branch road and blender (309), and air enters
Gas props up route pipeline and is sequentially provided with air source, ball valve of calming the anger (305), pressure of compressed air table (306), electromagnetic valve a(307) and regulating valve
A(308) and connect to blender (309), gas inlet props up route pipeline and is sequentially provided with fuel gas source, fuel gas ball valve (301), combustion gas
Pressure gauge (302), electromagnetic valve b(303) and regulating valve b(304) and connect to blender (309)；Igniting branch road is connected to electromagnetism
Valve b(303) and regulating valve b(304) between pipeline on, the pipeline of igniting branch road is sequentially provided with regulating valve c(310) and electromagnetism
Valve c(311) and connect to igniter burner (314).
4. the anti-tape cutter of think gauge high strength band steel continuous annealing treatment production line according to claim 2, its feature
It is, described drive mechanism includes motor (322), pedestal (318) and crank connecting link (319), motor (322) is vertically arranged, bent
Handle connecting rod (319) lower end is connected to the output shaft of motor (322) and is limited by pedestal (318), and upper end is limited by pedestal (318).
5. the anti-tape cutter of the think gauge high strength band steel continuous annealing treatment production line according to claim 1 or 2 or 4,
It is characterized in that, described air inlet pipe (316) and igniting branch road are equipped with one section of metal hose (312), metal hose (312)
Collapsing length is more than 50mm.
6. the anti-tape cutter of the think gauge high strength band steel continuous annealing treatment production line according to claim 1 or 2 or 4,
It is characterized in that, described temperature monitor (317) is noncontact electric thermo-couple temperature detector, its model bte-tc.
7. the anti-tape cutter of the think gauge high strength band steel continuous annealing treatment production line according to claim 1 or 2 or 4,
It is characterized in that, described flame detector (315) is the ultraviolet flame detector of market sale, its model jzs-102.
8. the anti-tape cutter of the think gauge high strength band steel continuous annealing treatment production line according to claim 1 or 2 or 4,
It is characterized in that, described lighter (313) is high-energy igniter, its model dgs-03.
9. the anti-tape cutter of the think gauge high strength band steel continuous annealing treatment production line according to claim 1 or 2 or 4,
It is characterized in that, described plc controller (323) is siemens plc s7-200.
10. the anti-tape cutter of the think gauge high strength band steel continuous annealing treatment production line according to claim 1 or 2 or 4,
It is characterized in that, described fuel gas source is propane, natural gas or mixed gas；Described air source is compressed air or combustion fan,
Optimal combustion gas uses propane, and air uses the pressure of compressed air, propane and compressed air to be 0.05mba.
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| CN109014646A (en) * | 2017-06-09 | 2018-12-18 | 上海梅山钢铁股份有限公司 | The method for preventing the disconnected band of thin material strip steel weld joint |
| CN111982508A (en) * | 2020-09-28 | 2020-11-24 | 马鞍山钢铁股份有限公司 | Continuous-annealing line tooth type coupling fault detection device, system and method |
| CN112264689A (en) * | 2020-09-09 | 2021-01-26 | 哈尔滨锅炉厂有限责任公司 | Built-in automatic temperature control device and control system for girth welding |
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