CN109266813A - A method of control steel bead wire Fracture Force and elongation - Google Patents
A method of control steel bead wire Fracture Force and elongation Download PDFInfo
- Publication number
- CN109266813A CN109266813A CN201811335249.2A CN201811335249A CN109266813A CN 109266813 A CN109266813 A CN 109266813A CN 201811335249 A CN201811335249 A CN 201811335249A CN 109266813 A CN109266813 A CN 109266813A
- Authority
- CN
- China
- Prior art keywords
- wire
- steel
- bead wire
- steel bead
- bus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
-
- 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
- C21D9/60—Continuous furnaces for strip or wire with induction heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The present invention discloses a kind of method for controlling steel bead wire Fracture Force and elongation, and tyre bead steel bead wire bus is the individual wire that a drawing or drawing twice are formed, and steel wire carries out intermediate frequency tempering process adjustment after surface cleans, finally obtains ideal steel wire properties.The present invention makes after tempering wire rupture power promote 0 ~ 15% than bus wire rupture power by a kind of adjustment of tempering process, while elongation at break is maintained at 5% or more, meets steel bead wire elongation at break requirement, and other performance index are without substantially changeing.In addition, this method can improve steel bead wire intensity, so that the steel bead wire under equality strength rank requires can reduce appropriate reduction bus steel wire carbon content or appropriate reduction bus steel wire inlet wire diameter production, it is finally reached the purpose for saving steel bead wire production cost.
Description
Technical field
The present invention relates to the manufacturing technique method of steel bead wire more particularly to a kind of control steel bead wire Fracture Forces and elongation
The method of rate.
Background technique
Steel bead wire is the important stressed member of radial, to be born in tire extremely complex stress alternation and
Impact load, so that the performance requirement to steel bead wire is higher.Steel bead wire will not only have higher intensity and good resistance to tired
Labor performance will also have shock proof ability, and this requires steel bead wires to have elongation height, number of torsions according to high characteristic.
Steel bead wire plays an important role to the safety of tire, high speed performance and endurance quality, and steel bead wire periodically bears to draw
The distortional stresses such as stretch, be bent, shearing.Tire steel bead wire only has intensity with higher, preferably stretches item rate, is torsion, curved
Folding endurance can just help to improve tire quality, and then improve the performance of tire safety.
With the development of radial, existing routine steel bead wire production technology is mainly that temperingization plates steel bead wire,
Steel wire obtains tire using diameter 5.5mm-6.5mm wire rod by a drawing after a series of surface treatment or by drawing twice
Steel wire bus is enclosed, steel bead wire bus passes through tempering again, and copper facing obtains finished product steel bead wire after surface treatment.One step is drawn
Pull out the master operation being related to are as follows: wire paying-off → pretreatment connects drawing → tempering copper facing → finished product packing, the pretreatment Lian Lagang
Silk diameter is generally in 1.20mm-2.30mm；The drawing twice is related to master operation are as follows: and wire paying-off → pretreatment drawing →
Intermediate heat-treatment → middle silk drawing → tempering copper facing → finished product packing, the pretreatment drawn steel wire diameter is generally in 2.50mm-
5.00mm, the middle silk drawing string diameter is generally in 0.70mm-1.60mm.
Under competitive pressure, cost efficiency is also the requisite measure of tire enterprise seeking development in the market, limited resources
Saving use brought into schedule by manufacturing industry.Therefore, constantly receive performance, cost as the steel bead wire of tyre framework material
With the challenge of energy conservation, increasingly pay attention to energy-saving and emission-reduction all over the world in addition, the development of high-performance low energy energy consumption tire is more next
Faster, requirement of the tire to all-steel cord is higher and higher.However, existing steel bead wire tempering process has the disadvantage that first lacks
Point: steel bead wire tempering process has certain influence to the Fracture Force of steel wire, causes intensity of steel wire to decline after tempering, and steel bead wire is raw
Produce increased costs；Second disadvantage: steel bead wire Fracture Force decline inevitable requirement increases steel wire diameter to make up Fracture Force decline
Deficiency, so as to cause the increase of unit length steel bead wire dosage, single tire weight is promoted, and leads to tire increased costs, no
Conducive to tire lightweight requirements.
Steel bead wire diameter is reduced, improving steel bead wire Fracture Force is the light-weighted important requirement of wheel rim.It is asked for above-mentioned
Topic needs a kind of steel wire that improves under the steel wire bus for guaranteeing same carbon content, same diameter by tempering process adjustment to break
Disconnected power, while guaranteeing the method for steel wire elongation.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of control steel bead wire proposed is broken
The method of disconnected power and elongation.
To achieve the above object, present invention employs following technical solutions:
A method of control steel bead wire Fracture Force and elongation, the production technology of the steel bead wire are as follows: use diameter
5.5mm-6.5mm wire rod obtains steel bead wire bus by a drawing after a series of surface treatment or by drawing twice,
Steel bead wire bus passes through tempering again, and copper facing obtains finished product steel bead wire after surface treatment, and improved intermediate frequency tempering process is described
Intermediate frequency tempering process is realized by intermediate frequency back-fire arrangement；
The intermediate frequency tempering process are as follows: the bus steel wire obtained after drawing by a drawing or twice is sent into the intermediate frequency
It is tempered in back-fire arrangement, the power of the intermediate frequency back-fire arrangement is 5KW-35KW；
The intermediate frequency back-fire arrangement includes shell, medium-frequency tube, power control device and power supply；The medium-frequency tube is at least 2,
The medium-frequency tube arrangement is fixed in the housing, and the medium-frequency tube, the power control device and the power supply are by leading
Line links together, and the conducting wire is spirally wrapped around on the medium-frequency tube.
Preferably, the intermediate frequency tempering process is that intermediate frequency primary heating is carried out to the single bus steel wire, i.e., one
One is heated in the medium-frequency tube.
Preferably, the tempering process once handles 1-40 root bus steel wire simultaneously, i.e. the quantitative range of medium-frequency tube is 1-
40.
Preferably, the more bus gauges of wire that the tempering process is handled simultaneously are identical or different.
Preferably, the best power of the intermediate frequency back-fire arrangement is 20KW.
Preferably, the carbon content of the steel bead wire bus is 0.60wt%-0.95wt%, i.e., the described steel bead wire bus
Weight percent is 0.60%-0.95%.
Preferably, the diameter of the steel bead wire bus is 0.70mm-2.30mm.
Preferably, the Trace speed of the steel bead wire bus is 150m/min-500m/min.
Compared with prior art, the invention has the benefit that
Wire rupture power is broken simultaneously than bus wire rupture power promotion 0-15% after making tempering by a kind of adjustment of tempering process
Elongation is maintained at 5% or more, meets steel bead wire elongation at break requirement, and other performance index are without substantially changeing.In addition,
Steel bead wire intensity can be improved, is contained so that the steel bead wire under the requirement of equality strength rank can reduce the appropriate bus steel wire carbon that reduces
Amount or the appropriate bus steel wire inlet wire diameter that reduces produce, and are finally reached the purpose for saving steel bead wire production cost.Energy of the present invention
The bearing capacity and security performance of tire are improved, can have under new process conditions and relatively reduce steel bead wire relative usage, reduces tire
Manufacturing cost meets tire and easily quantifies to require.
Detailed description of the invention
Fig. 1 is single bus steel wire intermediate frequency tempering schematic diagram after removal of impurities；
Fig. 2 is bus steel wire entirety intermediate frequency tempering schematic diagram after removal of impurities.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby cooperate embodiment detailed
It is described as follows.
Incorporated by reference to referring to Figures 1 and 2, the present invention provides a kind of method for controlling steel bead wire Fracture Force and elongation,
The production technology of steel bead wire are as follows: using diameter 5.5mm-6.5mm wire rod by a drawing after a series of surface treatment or
Steel bead wire bus 1 is obtained by drawing twice, steel bead wire bus 1 is again by tempering, and copper facing obtains finished product after surface treatment
Steel bead wire, improved intermediate frequency tempering process, intermediate frequency tempering process are realized by intermediate frequency back-fire arrangement.
Intermediate frequency tempering process are as follows: the steel bead wire bus 1 obtained after drawing by a drawing or twice is sent into institute
It states and is tempered in intermediate frequency back-fire arrangement, the power of intermediate frequency back-fire arrangement is 5KW-35KW, is carried out on original tempering process
Power bracket further reduces delineation, and when power is less than 5KW, the Fracture Force of the finished product steel bead wire after tempering is inadequate, reaches
Less than production requirement；When power is greater than 35KW, while the elongation of the finished product steel bead wire after tempering persistently increases, fracture
Power is in constantly decline so that the comprehensive performance of finished product steel bead wire declines.Using power control rather than and temperature control,
It is more easier to operate production equipment.
Intermediate frequency back-fire arrangement includes shell, medium-frequency tube 2, power control device 3 and power supply 4；The medium-frequency tube is at least 2
A, the arrangement of medium-frequency tube 2 is fixed, and medium-frequency tube 2, power control device 3 and power supply 4 are linked together by conducting wire in the shell,
Conducting wire is spirally wrapped around on medium-frequency tube 2.
Single steel bead wire bus 1 in Fig. 1 after surface cleans is admitted to medium-frequency tube 2 with certain speed and passes through
Medium-frequency tube 2 is tempered, and the power control device 3 being connected with medium-frequency tube 2 can control the power of tempering, to change intermediate frequency
The temperature being tempered in pipe 2, so that steel bead wire bus 1 improves wire rupture power and elongation in the case where phosphorus content is constant,
Steel bead wire under i.e. equality strength rank requires can suitably reduce the carbon content of steel bead wire bus 1 or suitably reduce tyre bead steel
The inlet wire diameter of screw line 1 produces, and is finally reached the purpose for saving steel bead wire production cost.
Further, the intermediate frequency tempering process is that intermediate frequency primary heating is carried out to the single bus steel wire, i.e., one
One is heated in a medium-frequency tube, individually heating tempering, each steel bead wire bus 1 all obtain optimal tempering effect,
It is not in the uneven situation of tempering.
In one embodiment, the tempering process once handles 1-40 root bus steel wire, i.e. the quantity model of medium-frequency tube simultaneously
Enclose is 1-40.Preferably, the more bus gauges of wire that the tempering process is handled simultaneously are identical or different.In this way may be used
To reach the production requirement of quantization, time cost and economic cost are advantageously reduced.
In a preferred embodiment, the best power of the intermediate frequency back-fire arrangement is 20KW.With conventional Φ 1.55HT tire
Enclose steel wire bus for, conventional Φ 1.55HT steel bead wire bus be with diameter of phi 5.50, carbon content 0.8wt% wire rod for original
Material is formed by a drawing, and main process is wire rod mechanical descaling, mechanical derusting, surface clean, surface painting boron, dries
Dry, drawing etc..
Φ 1.55HT steel bead wire bus carries out the related adjustment work of intermediate frequency tempering process adjustment after just face removal of impurities processing
Skill and steel wire destructive power, elongation rate data compare as follows:
It is bus steel wire in upper table, when EF power is 0KW, the Trace speed that silk steel is tempered in upper table is identical.
In terms of upper table data comparison, tempered steel wire Fracture Force is broken compared with bus steel wire under the conditions of EF power 23KW, 26KW
Disconnected power declines in various degree, as the fracture of the reduction steel wire of EF power is on a declining curve；Steel wire after common process tempering
Fracture Force is decline, is adjusted through the invention to EF power, can solve the underproof phenomenon of wire rupture power, thus
Meet production requirement.
From in terms of upper table when EF power 20KW be best tempering process, wire rupture power, elongation at break under this technique
There is certain excess room compared with standard, can satisfy production requirement, and steel wire is turned round with bus steel wire transformationization less after tempering
It is able to satisfy standard requirements.It is such as unqualified using wire rupture power when conventional tempering process, cause steel wire not to be able to satisfy standard and wants
It asks.Bus wire rupture power is improved in the be bound to carbon content of steel wire to be improved of such case, i.e., by test by staple tray
Carbon content is increased to 82 wt%, under the conditions of EF power 23KW, same Trace speed the Fracture Force of steel wire up to 4050N,
Although the properties for improving steel wire after carbon content meet standard requirements, the raising of carbon content causes the cost of steel to increase
Add, the manufacturing cost of steel bead wire is just promoted.
Preferably, the carbon content of the steel bead wire bus is 0.60wt%-0.95wt%, i.e., the described steel bead wire bus
Weight percent is 0.60%-0.95%, compared with traditional steel bead wire bus, the carbon content of improved steel bead wire bus
Declined.Further, the diameter of the steel bead wire bus is 0.70mm-2.30mm.With the tyre bead steel of equality strength
Screw line is compared, and the diameter of improved steel bead wire bus is reduced.By reducing the straight of carbon content or bus steel wire
Diameter can have and relatively reduce steel bead wire relative usage, reduce Tire production cost, meet tire and easily quantify to require.
Preferably, the Trace speed of the steel bead wire bus is 150m/min-500m/min, can be in tempering process knot
Preferable steel wire properties are obtained after beam.
From the above mentioned, wire rupture power is than bus wire rupture power after the present invention makes tempering by a kind of adjustment of tempering process
0-15% is promoted, while elongation at break is maintained at 5% or more, meets steel bead wire elongation at break requirement, and other performance refers to
Mark nothing is substantially change.In addition, steel bead wire intensity can be improved, thus equality strength rank require under steel bead wire can reduce it is suitable
When reducing bus steel wire carbon content or appropriate reduction bus steel wire inlet wire diameter production, it is finally reached saving steel bead wire and is produced into
This purpose.The present invention can improve the bearing capacity and security performance of tire, can have under new process conditions and relatively reduce steel bead wire
Relative usage reduces Tire production cost, meets tire and easily quantify to require.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only to implement example of the invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from spirit of the invention and
It is changed and retouched made by range, belongs to scope of patent protection of the invention.
Claims (8)
1. a kind of method for controlling steel bead wire Fracture Force and elongation, the production technology of the steel bead wire are as follows: use diameter
5.5mm-6.5mm wire rod obtains steel bead wire bus by a drawing after a series of surface treatment or by drawing twice,
Steel bead wire bus passes through tempering again, and copper facing obtains finished product steel bead wire after surface treatment, which is characterized in that improved intermediate frequency returns
Fire process, the intermediate frequency tempering process are realized by intermediate frequency back-fire arrangement；
The intermediate frequency tempering process are as follows: described in being sent into the steel bead wire bus obtained after drawing by a drawing or twice
It is tempered in intermediate frequency back-fire arrangement, the power of the intermediate frequency back-fire arrangement is 5KW-35KW；
The intermediate frequency back-fire arrangement includes shell, medium-frequency tube, power control device and power supply；The medium-frequency tube is at least 2,
The medium-frequency tube arrangement is fixed in the housing, and the medium-frequency tube, the power control device and the power supply are by leading
Line links together, and the conducting wire is spirally wrapped around on the medium-frequency tube.
2. the method for control steel bead wire Fracture Force and elongation as described in claim 1, it is characterised in that: the intermediate frequency returns
Fire process is that intermediate frequency primary heating is carried out to the single bus steel wire, i.e. heats one in a medium-frequency tube.
3. the method for control steel bead wire Fracture Force and elongation as described in claim 1, it is characterised in that: the Temperer
Skill once handles 1-40 root bus steel wire simultaneously, i.e. the quantitative range of medium-frequency tube is 1-40.
4. the method for control steel bead wire Fracture Force and elongation as claimed in claim 3, it is characterised in that: the Temperer
The more bus gauges of wire that skill is handled simultaneously are identical or different.
5. the method for control steel bead wire Fracture Force and elongation as described in claim 1, it is characterised in that: the intermediate frequency returns
The best power of fiery device is 20KW.
6. the method for control steel bead wire Fracture Force and elongation as described in claim 1, it is characterised in that: the tyre bead steel
The carbon content of screw line is 0.60wt%-0.95wt%, i.e., the weight percent of the described steel bead wire bus is 0.60%-0.95%.
7. the method for control steel bead wire Fracture Force and elongation as described in claim 1, it is characterised in that: the tyre bead steel
The diameter of screw line is 0.70mm-2.30mm.
8. the method for control steel bead wire Fracture Force and elongation as described in claim 1, it is characterised in that: the tyre bead steel
The Trace speed of screw line is 150m/min-500m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335249.2A CN109266813A (en) | 2018-11-10 | 2018-11-10 | A method of control steel bead wire Fracture Force and elongation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335249.2A CN109266813A (en) | 2018-11-10 | 2018-11-10 | A method of control steel bead wire Fracture Force and elongation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109266813A true CN109266813A (en) | 2019-01-25 |
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ID=65193426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811335249.2A Pending CN109266813A (en) | 2018-11-10 | 2018-11-10 | A method of control steel bead wire Fracture Force and elongation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842529A (en) * | 2020-06-17 | 2020-10-30 | 江苏兴达钢帘线股份有限公司 | Production process for improving binding force between steel wire and rubber |
| CN111962317A (en) * | 2020-07-09 | 2020-11-20 | 江苏兴达钢帘线股份有限公司 | Ultra-high strength rope product and production method thereof |
| CN114686959A (en) * | 2022-04-08 | 2022-07-01 | 江苏胜达科技有限公司 | Bead steel wire for all-steel light truck radial tire and production process thereof |
-
2018
- 2018-11-10 CN CN201811335249.2A patent/CN109266813A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842529A (en) * | 2020-06-17 | 2020-10-30 | 江苏兴达钢帘线股份有限公司 | Production process for improving binding force between steel wire and rubber |
| CN111962317A (en) * | 2020-07-09 | 2020-11-20 | 江苏兴达钢帘线股份有限公司 | Ultra-high strength rope product and production method thereof |
| CN114686959A (en) * | 2022-04-08 | 2022-07-01 | 江苏胜达科技有限公司 | Bead steel wire for all-steel light truck radial tire and production process thereof |
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