CN206702603U - A kind of device for being used to improve high-carbon wire rod joint quality - Google Patents
A kind of device for being used to improve high-carbon wire rod joint quality Download PDFInfo
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- CN206702603U CN206702603U CN201720487624.XU CN201720487624U CN206702603U CN 206702603 U CN206702603 U CN 206702603U CN 201720487624 U CN201720487624 U CN 201720487624U CN 206702603 U CN206702603 U CN 206702603U
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- wire rod
- straightener
- welder
- wire
- pinch roll
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Abstract
The utility model announces a kind of device for being used to improve high-carbon wire rod joint quality, belongs to wire production and its product preparing technical field.The device is mainly by aligning, shearing, chamfering, the device composition such as welding, cooling, polishing, heating.Its specific method is, wait two coil ends docked through straightener is aligned, shear end is cut flat and facing attachment end-beveling after, be held between two electrodes of welder, its end welded after ends contact is ensured；The coil end of postwelding is cooled down through cooling device, at the weld flush of sanding apparatus polish processing after, carry it again into heater, by the wire rod sensing heating between two electrodes when welding to normalizing temperature, and leave the device after ensureing that its temperature is uniform and carry out air cooling.Using the mechanization degree that the method increase wire rod docking, that is, improve the joint quality of wire rod, reduce wire broken rate, improve production efficiency during wire rod deep processing again.
Description
Technical field
The utility model belongs to wire production and its product preparing technical field, is directed primarily to a kind of for improving high-carbon
The devices and methods therefor of wire rod joint quality.
Background technology
Gren rod except partly directly with wire-form use in addition to, having a considerable amount of wire rods is entered in a manner of cold-drawn etc.
Row deep processing is simultaneously subsequently formed into all kinds of silk material products.In its deep-processing process, production efficiency is improves in each enterprise, often by wire rod
Its large-scale continuous production is realized using the method for upset butt welding.
But in wire rod deep-processing process, especially high-carbon wire rod, as Yang Hui, Tian Wentong welding magazine (2007,
(1)：41~43) the steel strand wires high-carbon steel wire rod mentioned in the document " Failure analysis of upset " delivered on
82B, 77B etc., it occur frequently that weld zone fracture of wire phenomenon, have a strong impact on the continuity and high efficiency of production.
At present, the method for wire rod docking is：Two terminations coiled are cut flat with, are held between two electrodes of welder,
Both ends of the surface are in contact；After energization, resistance heat caused by powerful electric current causes end face temperature to raise rapidly, and quickly in upset force
In the presence of deform so that both ends of the surface are combined together；When temperature is relatively low, with emery wheel by weld flush caused by upset
Remove clean；Electrode retaining part region when soldering tip position and welding is subjected to normalizing heat treatment again, generally passed to small
Electric current, welding region is heated up with slower speed, when being warming up to 900 DEG C or so of normalizing temperature, kept for some seconds then
Power supply is closed, is cooled down in atmosphere.
As can be seen here, the normalizing procedure for influenceing butt welding quality is realized using the resistance heat of wire rod, and so processing is normal
Often because of wire rod composition heterogeneity, non-uniform temperature etc. normalized structure can be caused bad, thus produce fracture of wire phenomenon.Moreover, weldering
Cooling velocity does not control afterwards.Moreover, on present wire rod deep processing and production line, mechanization degree also improves a lot
Space, such as welding process, the polishing of weld flush, it is operated is carried out by artificial more, and this has a strong impact on the weldering of wire rod docking area
Connect the production efficiency of quality, polishing quality and the entire production line.
The content of the invention
The problem of existing for the wire rod docking on current wire rod deep processing and production line, the utility model proposes one kind to solve
Certainly method, its essential idea are that increase postwelding cooling device, guarantee are cold on wire rod docking production line in addition to welder
But quality；Increase grinding machine device, ensure the mechanized operation of polishing；Increase induction heating apparatus, ensure to obtain well
Normalized structure；This can improve joint quality and production efficiency, reduce or avoid fracture of wire phenomenon.
The utility model is realized by following technical measures：
It is a kind of to be used to improve the device of high-carbon wire rod joint quality, it is characterised in that the device mainly by aligning, shearing,
The device composition such as chamfering, welding, cooling, polishing, heating.
Aligned the end that the straightener is used to treat two wire rods of docking；Shear is used for the disk after aligning
Bar carries out end and cut flat；Facing attachment is used to carry out chamfering to coil end；Dock the end that welder is used for two wire rods；It is cold
But device is used to cool down wire rod butt weld region；Sanding apparatus is used to polish weld seam bump pad, heating dress
Put and carry out sensing heating for the wire rod between the electrode of butt welding machine two, to carry out normalized treatment to it.
A kind of method for improving high-carbon wire rod joint quality, using described in claim 1 be used for improve high-carbon disk
The device of bar joint quality, it is characterised in that specific implementation step is as follows：(will preceding reel bar for two wire rods to be docked
Tail end docked with the front end of rear reel bar), first, forward and backward two reels bar pass sequentially through straightener carry out end rectify
Directly；Wire rod after aligning carries out coil end by shear and cut flat；Length is carried out to coil end by facing attachment again
For the chamfered that 1~3mm, angle are 30 °~75 °；Then, two two disk folders to be docked are held in two electrodes of welder
Between, and its ends contact is welded, wherein, according to the different electric current of wire rod material, size selection, ensure welding temperature
Reach 0.8~0.9 times of material melting point, and its upset amount reaches more than 75% (to ensure extrusion high-temperature oxide completely)；Weldering
Weld seam temperature is cooled to less than 200 DEG C by wire rod by cooling device afterwards；And then by sanding apparatus to weld seam bump pad
Carry out polishing processing, and ensure that diameter is not less than the 80% of the original diameter of wire rod at this；Wire rod is run to heater, will be welded
When two electrodes between wire rod sensing heating to normalizing temperature (Ac3+30~50 DEG C), and in the apparatus run 10~60s with
Ensure that its temperature is uniform, cool down in atmosphere afterwards.
Wire rod carbon content described in the utility model is more than 0.6%, and wire rod diameter is in below 16mm.
The beneficial effects of the utility model：
Using the utility model proposes be used for improve the devices and methods therefor of wire rod joint quality, it is right after wire rod welding
The tensile strength at the place of connecing can control 85% not less than mother metal, and the contraction percentage of area improves.Therefore, under the tensile strength of joint
Drop, but its Roughness Parameter is better than mother metal, so advantageously ensures that wire rod in follow-up deep-processing process, and such as drawing, twisting are raw
Produce not easy to break in process.
Brief description of the drawings
Fig. 1 be the utility model proposes be used for improve the device of wire rod joint quality.
Reel bar after 1-；Pinch roll at 2- straightener inlets；3- straighteners；4- straighteners exit pinch roll；5- is sheared
Device；6- facing attachments；7- welders electrode one；8- welders electrode two；9- cooling devices；10- sanding apparatus；11-
The pinch roll of induction heating apparatus porch；12- induction heating apparatuses；The pinch roll in 13- induction heating apparatuses exit；14-
Preceding reel bar
Embodiment
After now embodiment of the present utility model is specifically described in.
The technical solution of the utility model is described further below in conjunction with drawings and examples.Embodiment is only used for
Bright the utility model, rather than limit the utility model in any way.
As shown in figure 1, a kind of device for being used to improve high-carbon wire rod joint quality, the device is mainly by straightener inlet
Pinch roll 2, straightener 3, straightener exit pinch roll 4, shear 5, facing attachment 6, welder electrode 1, welding
Device electrode 28；Cooling device 9；Sanding apparatus 10, the pinch roll 11 of induction heating apparatus porch, induction heating apparatus 12,
The pinch roll 13 in induction heating apparatus exit forms.
Using the utility model proposes device realize high-carbon wire rod docking process be：The end of preceding reel bar 14 by
Pinch roll 2 leads into straightener 3, starts straightener 3 and the end of preceding reel bar 14 is aligned, straightener is closed after aligning
3, lift smoothing roll；The preceding end of reel bar 14 after aligning leads into shear 5 by pinch roll 4, the end of reel bar 14 before treating
When end passes through shear 5, start shear 5 and cut flat the preceding end of reel bar 14, shear is closed after cutting flat；Treat preceding volume
When the terminal part of wire rod 14 is by facing attachment 6, it is that length is 1 to start facing attachment 6 to carry out length to the end of preceding reel bar 14
~3mm, angle are 30 °~75 ° of chamfered, and facing attachment is closed after chamfering；Meanwhile the front end of rear reel bar 1 is by pinching
Roller 2 leads into straightener 3, starts straightener 3 and the end of rear reel bar 1 is aligned, and straightener 3, lift are closed after aligning
Play smoothing roll；When the front end of rear reel bar 1 is by shear 5, starts shear 5 and cut flat the rear end of reel bar 1, cut flat
After close shear；Equally, when the rear front end of reel bar 1 is by facing attachment 6, facing attachment 6 is started to rear reel bar 1
It is the chamfered that length is 1~3mm, angle is 30 °~75 ° that front end, which carries out length, and facing attachment is closed after chamfering；Pinching
Under roller 2,4 acts on, rear reel bar 1 accelerates, and ensures that the end of forward and backward reel bar is located exactly at welder electrode 1, weldering
The centre position of connection device electrode 28 simultaneously ensures ends contact, now, 28 pairs of welder electrode 1, welder electrode
Reel bar 1, the end of preceding reel bar 14 clamp and turn-on current afterwards, are heated that (its temperature is according to wire rod material to wire rod
The different electric current of matter, size selection, ensure that welding temperature reaches 0.8~0.9 times of material melting point), when wire rod reaches welding temperature
When spending, forge is carried out to wire rod, its deformation amount controlling is more than 75% (to ensure extrusion high-temperature oxide completely).Welding
After the completion of welder electrode 1, welder electrode 28 leave wire rod, and close electric current；The wire rod then docked run to
Cooling device 9, its type of cooling are mainly water cooling or air-cooled, after wire rod is cooled to below 200 DEG C, close cooling device；It is right
When the wire rod connect is run to sanding apparatus 10, start sanding apparatus 10 and weld seam bump pad is carried out to polish processing, and ensure at this
Diameter is not less than the 80% of the original diameter of wire rod；The working portion of sanding apparatus 10 leaves the wire rod of docking after polishing, and closes
Sanding apparatus 10；When wire rod after polishing enters induction heating apparatus 12 through pinch roll 11, starting induction heating apparatus 12 will weld
Wire rod sensing heating when connecing between two electrodes is run to normalizing temperature (Ac3+30~50 DEG C) in induction heating apparatus 12
10~60s is uniform to ensure its temperature, docks wire rod afterwards and is exported by pinch roll 13, simultaneously closes off induction heating apparatus 12；
Cooled down in air.
Embodiment 1
The wire rod of the present embodiment is SWRH82B, and its specification is Φ 13mm, and chemical composition (mass fraction/%) is 0.82C,
0.26Si, 0.76Mn, 0.0010S, 0.0009P, 0.30Ni, 0.30Cr, remaining is Fe.In the end of preceding reel bar 14 by pinching
Roller 2 leads into straightener 3, starts straightener 3 and the end of preceding reel bar 14 is aligned, and straightener 3, lift are closed after aligning
Play smoothing roll；The preceding end of reel bar 14 after aligning leads into shear 5 by pinch roll 4, and the end of reel bar 14 leads to before treating
When crossing shear 5, start shear 5 and cut flat the preceding end of reel bar 14, shear is closed after cutting flat；Reel bar before treating
When 14 terminal parts are by facing attachment 6, start facing attachment 6 end of preceding reel bar 14 is carried out length be length be 2mm, angle
The chamfered for 45 ° is spent, facing attachment is closed after chamfering；Meanwhile the front end of rear reel bar 1 led into by pinch roll 2 it is strong
Straight machine 3, start straightener 3 and the end of rear reel bar 1 is aligned, straightener 3 is closed after aligning, lifts smoothing roll；When after
When the front end of reel bar 1 is by shear 5, starts shear 5 and cut flat the rear end of reel bar 1, shearing dress is closed after cutting flat
Put；Equally, when the rear front end of reel bar 1 is by facing attachment 6, start facing attachment 6 and length is carried out to the front end of rear reel bar 1
The chamfered that for length be 2mm, angle is 45 °, facing attachment is closed after chamfering；Under the effect of pinch roll 2,4, rear reel bar
1 accelerates, and ensures that the end of forward and backward reel bar is located exactly at welder electrode 1, the centre of welder electrode 28
Position simultaneously ensures ends contact, now, reel bar 1, preceding reel bar 14 after welder electrode 1,28 pairs of welder electrode
End clamp and turn-on current, wire rod is heated, when wire rod reaches 1210 DEG C of welding temperature, wire rod carried out
Forge, its deflection are 85%.Welder electrode 1, welder electrode 28 leave wire rod after the completion of welding, and
Close electric current；The wire rod then docked is run to cooling device 9, it is carried out it is air-cooled, when wire rod is cooled to 120 DEG C, close
Cooling device；When the wire rod of docking is run to sanding apparatus 10, start sanding apparatus 10 and weld seam bump pad carried out to polish processing,
And ensure a diameter of 12.0mm at this；The working portion of sanding apparatus 10 leaves the wire rod of docking after polishing, and closes polishing dress
Put 10；When wire rod after polishing enters induction heating apparatus 12 through pinch roll 11, start induction heating apparatus 12, by during welding two
Wire rod sensing heating between electrode runs 16s to ensure that its temperature is uniform to 880 DEG C of normalizing temperature in the device 12,
Docking wire rod is exported by pinch roll 13 afterwards, simultaneously closes off induction heating apparatus 12；Cool down in atmosphere.Wire rod after processing is existed
Joint is sampled, and carries out Mechanics Performance Testing, while drawing fracture of wire number is counted.
To be contrasted, to the existing duct butt-welding method used in production (i.e. using manual operations welding, polishing, by small
Electric current heating carries out normalized treatment etc. to weld seam) the SWRH82B wire rods that obtain are sampled, carry out the mechanical property under the same terms
It can test, while drawing fracture of wire number is counted.
SWRH82B wire rod Tensile Test Results show that the original tensile strength of wire rod is 1280MPa, according to the utility model
The wire rod that the method for proposition is docked, the tensile strength of its joint is 1178MPa, and the contraction percentage of area 41%, drawing is broken
Silk number for it is every hundred tons 1 time；And the wire rod of the existing duct butt-welding method used in production, its tensile strength is 1090MPa, and section is received
Shrinkage is 32%, drawing fracture of wire number for it is every hundred tons 3 times.As can be seen here, the intensity index of two methods decreases, but plasticity
Index --- the contraction percentage of area, according to the utility model proposes apparatus and method carry out butt welding wire rod significantly better than production now
The wire rod of the duct butt-welding method of middle use, this show the utility model proposes apparatus and method can improve the docking matter of wire rod
Amount.
Embodiment 2
The wire rod of the present embodiment is spring steel 60Si2Mn, and its specification is Φ 13mm, and chemical composition (mass fraction/%) is
0.62C, 1.61Si, 0.78Mn, 0.0010S, 0.0009P, remaining is Fe.Guided in the end of preceding reel bar 14 by pinch roll 2
Into straightener 3, start straightener 3 and the end of preceding reel bar 14 is aligned, straightener 3 is closed after aligning, lifts aligning
Roller；The preceding end of reel bar 14 after aligning leads into shear 5 by pinch roll 4, and the end of reel bar 14 passes through shearing before treating
During device 5, start shear 5 and cut flat the preceding end of reel bar 14, shear is closed after cutting flat；The end of reel bar 14 before treating
When portion is by facing attachment 6, start facing attachment 6 end of preceding reel bar 14 is carried out length be length be 2mm, angle be
45 ° of chamfered, facing attachment is closed after chamfering；Meanwhile the front end of rear reel bar 1 leads into straightener by pinch roll 2
3, start straightener 3 and the end of rear reel bar 1 is aligned, straightener 3 is closed after aligning, lifts smoothing roll；When after reel
When the front end of bar 1 is by shear 5, starts shear 5 and cut flat the rear end of reel bar 1, shear is closed after cutting flat；Together
Sample, when the rear front end of reel bar 1 is by facing attachment 6, starts facing attachment 6 and length is carried out for length to the front end of rear reel bar 1
Spend for the chamfered that 2mm, angle are 45 °, facing attachment is closed after chamfering；Under the effect of pinch roll 2,4, rear reel bar 1 adds
Speed motion, ensures that the end of forward and backward reel bar is located exactly at welder electrode 1, the centre position of welder electrode 28
And ensure ends contact, now, reel bar 1, the end of preceding volume 14 are entered after welder electrode 1,28 pairs of welder electrode
Row clamping and turn-on current, are heated to wire rod, and when wire rod reaches 1230 DEG C of welding temperature, upset change is carried out to wire rod
Shape, its deflection are 78%.Welder electrode 1, welder electrode 28 leave wire rod, and close electricity after the completion of welding
Stream；The wire rod then docked is run to cooling device 9, and water cooling is carried out to it, when wire rod is cooled to 80 DEG C, closes cooling dress
Put；When the wire rod of docking is run to sanding apparatus 10, start sanding apparatus 10 and weld seam bump pad is carried out to polish processing, and ensure
A diameter of 11.6mm at this；The working portion of sanding apparatus 10 leaves the wire rod of docking after polishing, and closes sanding apparatus 10；Beat
When wire rod after mill enters induction heating apparatus 12 through pinch roll 11, start induction heating apparatus 12, by two electrodes during welding it
Between wire rod sensing heating to 860 DEG C of normalizing temperature, and in induction heating apparatus 12 run 15s to ensure that its temperature is uniform,
Docking wire rod is exported by pinch roll 13 afterwards, simultaneously closes off induction heating apparatus 12；Cool down in atmosphere.Wire rod after processing is existed
Joint is sampled, and carries out Mechanics Performance Testing, while drawing fracture of wire number is counted.
60Si2Mn wire rod Tensile Test Results show that the original tensile strength of wire rod is 1020MPa, according to the utility model
The wire rod that the method for proposition is docked, the tensile strength of its joint are 970MPa, the contraction percentage of area 43%, drawing fracture of wire
Number for it is every hundred tons 1 time；And the wire rod of the existing duct butt-welding method used in production, its tensile strength is 950MPa, section shrinkage
Rate is 35%, drawing fracture of wire number for it is every hundred tons 3 times.As can be seen here, the intensity index of two methods decreases, but plasticity refers to
Mark --- the contraction percentage of area, according to the utility model proposes apparatus and method carry out butt welding wire rod significantly better than it is existing in production
The wire rod of the duct butt-welding method of use, this show the utility model proposes apparatus and method can improve the joint quality of wire rod.
From embodiment, using the utility model proposes devices and methods therefor, ensureing that wire rod joint tension is strong
Degree is not less than the 85% of mother metal, and plasticity index --- in the case of the contraction percentage of area is increased, drawing fracture of wire number is compared with current technology
It is decreased obviously, is favorably improved the production efficiency of wire rod deep processing.
Claims (1)
- A kind of 1. device for being used to improve high-carbon wire rod joint quality, it is characterised in that including aligning, shearing, chamfering, welding, Cooling, polishing and heater, each device sequence connection；Straightener is by straightener inlet pinch roll, straightener, straightener Exit pinch roll set into；Welder is made up of welder electrode one, welder electrode two；Heater is added by sensing The pinch roll of thermal porch, induction heating apparatus, induction heating apparatus exit pinch roll set into；Aligned the end that the straightener is used to treat two wire rods of docking；Shear is used to enter the wire rod after aligning Row end is cut flat；Facing attachment is used to carry out chamfering to coil end；Dock the end that welder is used for two wire rods；Cooling dress Put for being cooled down to wire rod butt weld region；Sanding apparatus is used to polish weld seam bump pad, and heater is used In carrying out sensing heating to the wire rod between the electrode of welder two, to carry out normalized treatment to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720487624.XU CN206702603U (en) | 2017-05-04 | 2017-05-04 | A kind of device for being used to improve high-carbon wire rod joint quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720487624.XU CN206702603U (en) | 2017-05-04 | 2017-05-04 | A kind of device for being used to improve high-carbon wire rod joint quality |
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| Publication Number | Publication Date |
|---|---|
| CN206702603U true CN206702603U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720487624.XU Expired - Fee Related CN206702603U (en) | 2017-05-04 | 2017-05-04 | A kind of device for being used to improve high-carbon wire rod joint quality |
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| CN (1) | CN206702603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926001A (en) * | 2017-05-04 | 2017-07-07 | 北京科技大学 | A kind of devices and methods therefor for improving high-carbon wire rod joint quality |
-
2017
- 2017-05-04 CN CN201720487624.XU patent/CN206702603U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926001A (en) * | 2017-05-04 | 2017-07-07 | 北京科技大学 | A kind of devices and methods therefor for improving high-carbon wire rod joint quality |
| CN106926001B (en) * | 2017-05-04 | 2023-01-10 | 北京科技大学 | Device and method for improving butt joint quality of high-carbon wire rod |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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