CN108823373B - Stranded copper conductor on-line annealing device - Google Patents
Stranded copper conductor on-line annealing device Download PDFInfo
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- CN108823373B CN108823373B CN201811045936.0A CN201811045936A CN108823373B CN 108823373 B CN108823373 B CN 108823373B CN 201811045936 A CN201811045936 A CN 201811045936A CN 108823373 B CN108823373 B CN 108823373B
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- 239000004020 conductor Substances 0.000 title claims abstract description 76
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 61
- 239000010949 copper Substances 0.000 title claims abstract description 61
- 238000000137 annealing Methods 0.000 title claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 230000006698 induction Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- 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
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- 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
- C21D9/563—Rolls; Drums; Roll arrangements
-
- 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
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
-
- 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
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
- C21D9/5737—Rolls; Drums; Roll arrangements
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses an online annealing device for stranded copper conductors, which can solve the problems that the conventional cable conductors generate internal stress in the stranding process, the resistivity of the conductors is increased after stranding, the section of the conductors is increased under the condition of the same conductor resistance value, copper materials are wasted, and the conventional annealing device for the copper conductors cannot solve. Including box and be located its inside preheating section, heating section, annealing section and cooling section, preheating section is located box one end, preheating section one end is provided with the inlet end, just install first guide pulley, second guide pulley on the preheating section, the second guide pulley is close to the inlet end, first guide pulley is located second guide pulley one side, just first guide pulley with be connected with the copper conductor between the second guide pulley. When the conductor is in operation, internal stress can be eliminated, the resistivity of the conductor is reduced, and compared with a conductor of the same level, the sectional area of the conductor is reduced, copper materials are saved, and the product cost is reduced.
Description
Technical Field
The invention relates to an annealing device, in particular to an online annealing device for stranded copper conductors.
Background
At present, in the domestic cable industry, the production process of copper conductors is basically single-wire drawing production, and the wire drawing process is also performed with single-wire annealing treatment, so that the copper single wires meet the requirements of TR in national standard GB/T3953, then conductors are twisted, internal stress is generated in the twisting process of the cable conductors, the conductor resistivity is increased after twisting, and therefore the conductor section is increased under the condition of the same conductor resistance value requirement, copper material is wasted, and the existing copper conductor annealing device cannot solve the problem.
Disclosure of Invention
The invention aims to provide an online annealing device for stranded copper conductors, which can solve the problems that the conventional cable conductors generate internal stress in the stranding process, the resistivity of the conductors is increased after stranding, the section of the conductors is increased under the condition of the same conductor resistance value, copper materials are wasted, and the conventional annealing device for the copper conductors cannot solve.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a stranded copper conductor on-line annealing device, includes box and is located its inside preheating section, heating section, annealing section and cooling section, preheating section is located box one end, preheating section one end is provided with the inlet end, just install first guide pulley, second guide pulley on the preheating section, the second guide pulley is close to the inlet end, first guide pulley is located second guide pulley one side, just first guide pulley with be connected with the copper conductor between the second guide pulley, the heating section is located preheating section one side, heating section one side sets up annealing section, just the heating section with install the fourth guide pulley between the annealing section, annealing section one side sets up the cooling section, cooling section one side installs the third guide pulley, third guide pulley one side sets up the outlet end.
Preferably, a current is applied between the first guide wheel and the second guide wheel to lead the copper conductor, and the heat generated by heating the copper conductor serving as a resistor is calculated according to a heat formula q=i 2 *R*T。
Preferably, the second guide wheel and the third guide wheel are both positioned on the heating section, induction heating is adopted between the second guide wheel and the third guide wheel, and the heating temperature reaches 450+/-50 ℃.
Preferably, the third guide wheel and the fourth guide wheel are positioned on the annealing section, and a liquid spray cooling mode is adopted between the third guide wheel and the fourth guide wheel, and the annealing temperature reaches 120+/-10 ℃.
Preferably, the annealed copper conductor is cooled by low-temperature nitrogen at the outlet end of the fourth guide wheel, and the low-temperature nitrogen is filled into the heating section and the cooling section.
Preferably, the interior of the preheating section is vacuumized, and the top of the annealing section is open.
The invention has the beneficial effects that:
1. because the current for guiding the copper conductor is added between the first guide wheel and the second guide wheel, and the heat generated by heating the copper conductor serving as a resistor is calculated according to a heat formula Q=I R T, the copper conductor is used as a resistor to generate heat after the current is introduced, so that the copper guide wheel is preheated, and the temperature can be calculated and controlled according to the heat formula Q=I≡R T.
2. Because the second guide wheel and the third guide wheel are both positioned on the heating section, induction heating is adopted between the second guide wheel and the third guide wheel, the heating temperature reaches 450+/-50 ℃, and the induction heating mode is adopted, so that the internal stress is eliminated, the specific resistance of the conductor is reduced, compared with a conductor of the same grade, the sectional area of the conductor is reduced, the copper material is saved, the product cost is reduced, and the effect is better.
3. Because the third guide wheel and the fourth guide wheel are both positioned on the annealing section, and a liquid spray cooling mode is adopted between the third guide wheel and the fourth guide wheel, the annealing temperature reaches 120+/-10 ℃, the annealing efficiency is high, the speed is high, the sprayed liquid can be recycled, the energy is saved, and the cost is low.
4. The annealed copper conductor is cooled by adopting low-temperature nitrogen at the outlet end of the fourth guide wheel, and the low-temperature nitrogen is filled into the heating section and the cooling section, so that the temperature of the copper conductor can be reduced to a normal temperature state; secondly, nitrogen is adopted to isolate the copper conductor from oxygen in the air, so that the copper conductor is prevented from being oxidized; and thirdly, nitrogen is a gaseous object, is easy to volatilize and cannot remain on the copper conductor.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a side view of the present invention;
in the figure: 1. a pre-heating section; 2. a heating section; 3. an annealing section; 4. a cooling section; 5. an air inlet end; 6. an air outlet end; 7. the first guide wheel; 8. the second guide wheel; 9. a third guide wheel; 10. a fourth guide wheel; 11. a copper conductor; 12. a box body.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, an on-line annealing device for stranded copper conductors includes a box 12, and a preheating section 1, a heating section 2, an annealing section 3 and a cooling section 4 inside the box, wherein the preheating section 1 is located at one end of the box 12, an air inlet end 5 is arranged at one end of the preheating section 1, a first guide wheel 7 and a second guide wheel 8 are installed on the preheating section 1, the second guide wheel 8 is close to the air inlet end 5, the first guide wheel 7 is located at one side of the second guide wheel 8, a copper conductor 11 is connected between the first guide wheel 7 and the second guide wheel 8, the heating section 2 is located at one side of the preheating section 1, an annealing section 3 is arranged at one side of the heating section 2, a fourth guide wheel 10 is installed between the heating section 2 and the annealing section 3, a cooling section 4 is arranged at one side of the annealing section 3, a third guide wheel 9 is installed at one side of the cooling section 4, and an air outlet end 6 is arranged at one side of the third guide wheel 9.
Current is applied between the first guide wheel 7 and the second guide wheel 8 to the copper conductor 11, and the heat generated by heating the copper conductor 11 serving as a resistor is calculated according to a heat formula q=i 2 * R x T, using the copper conductor 11 as a resistor, generates heat upon current, thereby preheating the copper guide wheel, and is able to calculate and control the temperature according to the heat formula q=i 2 x R x T.
The second guide wheel 8 and the third guide wheel 9 are both positioned on the heating section 2, induction heating is adopted between the second guide wheel 8 and the third guide wheel 9, the heating temperature reaches 450+/-50 ℃, the induction heating mode is adopted, the internal stress is eliminated, the specific resistance of the conductor is reduced, compared with a conductor of the same grade, the sectional area of the conductor is reduced, copper materials are saved, the product cost is reduced, and the effect is better.
The third guide wheel 9 and the fourth guide wheel 10 are positioned on the annealing section 3, liquid (such as emulsion) spraying cooling mode is adopted between the third guide wheel 9 and the fourth guide wheel 10, the annealing temperature reaches 120+/-10 ℃, the annealing efficiency is high, the speed is high, the sprayed liquid can be recycled, the energy is saved, and the cost is low.
The annealed copper conductor 11 is cooled by adopting low-temperature nitrogen at the outlet end of the fourth guide wheel 10, and the low-temperature nitrogen is filled into the heating section 2 and the cooling section 4, so that the temperature of the copper conductor 11 can be reduced to a normal temperature state; secondly, nitrogen is adopted to isolate the copper conductor 11 from oxygen in the air, so that the copper conductor is prevented from being oxidized; and thirdly, nitrogen is a gaseous object, is easy to volatilize and cannot remain on the copper conductor.
The interior of the preheating section 1 is vacuumized and sealed, the first guide wheel 7 and the second guide wheel 8 are protected while the heat loss rate of the preheating section 1 is reduced, the top of the annealing section 3 is open, and the effect of evaporating water during annealing can be achieved.
When the device is used, firstly, the whole device is assembled, the preheating section 1 is sealed, the interior is vacuumized, the oxidation protection is carried out on the first guide wheel 7 and the second guide wheel 8 while the heat loss rate of the preheating section 1 is reduced, the current for guiding the copper conductor 11 is increased between the first guide wheel 7 and the second guide wheel 8, and the heat generated by heating the copper conductor 11 serving as a resistor is calculated according to a heat formula Q=I 2 * R x T, using the copper conductor 11 as a resistor, generates heat upon current, thereby preheating the copper guide wheel, and calculates and controls the required temperature according to the heat formula q=i 2 x R x T. And secondly, induction heating equipment is added between the second guide wheel 8 and the third guide wheel 9, the heating temperature is controlled to be 450+/-50 ℃ by using an induction heating mode, the conductor resistivity is reduced after eliminating internal stress, compared with a conductor of the same grade, the conductor sectional area is reduced, copper materials are saved, the product cost is reduced, and the effect is better. Then, when the device is started, the device is preheated by the preheating section 1 and then heated by the heating section 2, the annealing section 3 is started, the top of the annealing section 3 is open, the effect of evaporating water can be achieved during annealing, and as the liquid spray cooling mode is adopted between the third guide wheel 9 and the fourth guide wheel 10, the annealing temperature can be controlled to be 120+/-10 ℃, the annealing efficiency is high, the annealing speed is high, and the sprayed liquid is highThe copper conductor 11 after annealing is cooled by adopting low-temperature nitrogen at the outlet end of the fourth guide wheel 10, and the heating section 2 and the cooling section 4 are internally filled with low-temperature nitrogen, so that the temperature of the copper conductor 11 can be reduced to a normal temperature state, the copper conductor 11 is isolated by adopting nitrogen to contact oxygen in air, the copper conductor 11 can be prevented from being oxidized, and meanwhile, the nitrogen is a gaseous object and is easy to volatilize and can not remain on the copper conductor 11.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (4)
1. An on-line annealing device for stranded copper conductors comprises a box body (12), and a preheating section (1), a heating section (2), an annealing section (3) and a cooling section (4) which are positioned in the box body, and is characterized in that,
the preheating section (1) is located at one end of the box body (12), one end of the preheating section (1) is provided with an air inlet end (5), a first guide wheel (7) and a second guide wheel (8) are installed on the preheating section (1), current for guiding a copper conductor (11) is added between the first guide wheel (7) and the second guide wheel (8), heat generated by heating the copper conductor (11) serving as a resistor is calculated according to a heat formula Q=I2 x R x T, the second guide wheel (8) is close to the air inlet end (5), the first guide wheel (7) is located at one side of the second guide wheel (8), a copper conductor (11) is connected between the first guide wheel (7) and the second guide wheel (8), the heating section (2) is located at one side of the preheating section (1), an annealing section (3) is arranged at one side of the heating section (2), a fourth guide wheel (10) is installed between the heating section (2) and the annealing section (3), a third guide wheel (9) is arranged at one side of the annealing section (4), a third guide wheel (9) is arranged at one side of the cooling section (9), induction heating is adopted between the second guide wheel (8) and the third guide wheel (9), and the heating temperature reaches 450+/-50 ℃.
2. The online annealing device for stranded copper conductors according to claim 1, wherein the third guide wheel (9) and the fourth guide wheel (10) are positioned on the annealing section (3), and a liquid spray cooling mode is adopted between the third guide wheel (9) and the fourth guide wheel (10), and the annealing temperature reaches 120 ℃ +/-10 ℃.
3. The online annealing device for stranded copper conductors according to claim 1, wherein the annealed copper conductor (11) is cooled by low-temperature nitrogen at the outlet end of the fourth guide wheel (10), and the interior of the heating section (2) and the interior of the cooling section (4) are filled with low-temperature nitrogen.
4. The on-line annealing device for stranded copper conductors according to claim 1, wherein the interior of the preheating section (1) is vacuumized, and the top of the annealing section (3) is open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045936.0A CN108823373B (en) | 2018-09-07 | 2018-09-07 | Stranded copper conductor on-line annealing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045936.0A CN108823373B (en) | 2018-09-07 | 2018-09-07 | Stranded copper conductor on-line annealing device |
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| CN108823373A CN108823373A (en) | 2018-11-16 |
| CN108823373B true CN108823373B (en) | 2024-03-19 |
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| CN109727727B (en) * | 2018-12-29 | 2021-04-30 | 福建南平太阳电缆股份有限公司 | Post-twisting continuous annealing type copper conductor annealing process |
| CN117467833A (en) * | 2023-12-28 | 2024-01-30 | 尚纬股份有限公司 | Online continuous annealing device and method for stranded aluminum alloy conductor |
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| CN101824586A (en) * | 2010-05-24 | 2010-09-08 | 伊东新(德阳)线缆设备有限公司 | Continuous annealing device |
| CN103890200A (en) * | 2011-09-29 | 2014-06-25 | 高周波热錬株式会社 | Method of annealing copper wire for interconnector |
| CN103805926A (en) * | 2012-11-15 | 2014-05-21 | 浙江正导光电股份有限公司 | Annealing treatment method of copper stranded wire |
| CN103151116A (en) * | 2013-03-12 | 2013-06-12 | 河南开启电力实业有限公司 | Cable conductor wire twisting machine and conductor annealing method |
| CN203212613U (en) * | 2013-04-10 | 2013-09-25 | 湖州东尼电子有限公司 | Resistive copper softening equipment |
| CN103489531A (en) * | 2013-08-21 | 2014-01-01 | 远程电缆股份有限公司 | High conductivity copper conductor manufacturing process |
| CN204848956U (en) * | 2015-08-07 | 2015-12-09 | 赣州西维尔金属材料科技有限公司 | Fine rule even draws continuous annealing machine |
| CN205122289U (en) * | 2015-11-30 | 2016-03-30 | 贵溪金砖铜业有限公司 | Automatic device of annealing of copper line |
| CN205420500U (en) * | 2016-03-31 | 2016-08-03 | 广东楚一铜业有限公司 | Electromagnetic induction type copper line annealing system |
| CN107385161A (en) * | 2017-07-26 | 2017-11-24 | 江苏苏丰机械科技有限公司 | A kind of new material Major-diameter annealing machine |
| CN208762540U (en) * | 2018-09-07 | 2019-04-19 | 合肥神马科技集团有限公司 | A kind of twisted copper conductors online annealing device |
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