CN1172018C - In-line destresing process and apparatus for Cu-alloy pipe or wire - Google Patents
In-line destresing process and apparatus for Cu-alloy pipe or wire Download PDFInfo
- Publication number
- CN1172018C CN1172018C CNB021326339A CN02132633A CN1172018C CN 1172018 C CN1172018 C CN 1172018C CN B021326339 A CNB021326339 A CN B021326339A CN 02132633 A CN02132633 A CN 02132633A CN 1172018 C CN1172018 C CN 1172018C
- Authority
- CN
- China
- Prior art keywords
- tube wire
- temperature
- cooling
- zone
- copper alloy
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 62
- 238000000137 annealing Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012809 cooling fluid Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000004148 unit process Methods 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Images
Abstract
The present invention discloses an on-site stress-relieving process and a special apparatus for copper alloy pipelines. Before pipelines are rolled, drawn and coiled, the pipelines are annealed in the process of passing through a special on-site stress-relieving processor by medium-high frequency induction heating, the pipelines are cooled at the outlet, and the overall annealing process of the pipelines is completed before the pipelines are coiled. The on-site stress-relieving process concretely comprises: 1) first of all a pipeline from a rolling zone or a drawing zone enters a special apparatus heating zone and heated to have the temperature of stress relief annealing, and then heat preservation at a uniform temperature is carried out; 2) the pipeline enters a cooling zone, first of all the pipeline is cooled with air, the temperature is reduced by 50 DEG C to 100 DEG C, and then the pipeline is cooled with liquid, the temperature of the pipeline from the cooling zone can be quickly reduced to the coiling temperature; the pipeline from the cooling zone can enter a disc drawing zone. The present invention has the characteristics that oxidization is avoided along with continuous annealing, the special apparatus has little space occupation, and the on-site stress-relieving process has high efficiency in on-site annealing.
Description
Technical field
The present invention relates to the copper-alloy pipe-material technology of preparing, online destressing process method of specifically a kind of copper alloy tube wire rod and isolated plant are particularly suitable for the production of continuously casting copper alloy tandem rolling tube wire.
Background technology
Copper-alloy pipe-material is because of having good resistance to corrosion and higher intensity, thus be widely used in generating with condenser, boats and ships condenser, feed-water heater, distiller, oil cooler and water treatment device with industry such as heat exchangers.Copper alloy (as brass etc.) is compared with red copper, and its work hardening exponent is bigger, and deformability, resistance to deformation are all inequality.In the tube wire manufacturing processed, pass deformation is less in viscous deformation (rolling, drawing), and the annealing number of times between passage is also many.The most common and sixty-four dollar question is how to eliminate work hardening quickly and easily in the copper-alloy pipe-material production, and its annealed quality and state of the art are directly connected to the quality of copper-alloy pipe-material.For the copper alloy tube wire rod, annealing is one of problem of most critical.In the copper alloy tube wire rod serialization production process, saving effective online annealing technology soon is the major issue of being badly in need of solution.
The method for annealing of copper alloy tube wire rod mainly contains the chain dynamic formula and moves serialization annealing, the discontinuous annealing of case group formula and the semicontinuous annealing of electrically heated etc. at present.It generally is to adopt a group chamber type process furnace that the chain dynamic formula moves the serialization method for annealing, allows the whole tube wire that coils under the drive of mobile chain, moves continuously in stove and finishes annealing process.The advantage of this method is can produce with the tube wire serialization to be complementary, and realizes mass-producing and high productivity, and can apply gas shield device; Its shortcoming is need be with tube wire dish knot, and annealed efficient is lower, and equipment occupation space is very big.The advantage of the discontinuous method for annealing of case group formula is that the space of hold facility is less, produces maneuverability, can organize miniaturization and discontinuous production; Its shortcoming is that annealed efficient is low, the annealing furnace inner space is limited, is not suitable for forming large-scale continuous production.The advantage of the semicontinuous method for annealing of electrically heated is that annealed efficient is higher, and equipment occupation space is little, the handiness height; Its shortcoming is to be not suitable for handling oversize pipeline, utmost point thin-walled tube and superfine wire rod, and is difficult to apply the gas shield measure.
Summary of the invention
In order to overcome above-mentioned deficiency, the purpose of this invention is to provide a kind ofly at online destressing process method of copper alloy tube wire rod and the isolated plant of guaranteeing that the serialization annealed simultaneously can be avoided oxidation, take up room little, have the online annealed characteristics of high-level efficiency.
To achieve these goals, technical scheme of the present invention is as follows:
The online destressing process method of copper alloy tube wire rod, it is characterized in that: before the coiling of the rolling and drawing of tube wire, via the online destressing treatment unit of special use, adopt the medium-high frequency induction heating, tube wire is annealed in passing described online destressing treatment unit process, carry out cooling process in the exit, make tube wire before coiling, finish the annealing whole process; Be specially:
1) from tube wire rolling or that come out in the drawing district, at first enter described isolated plant heating zone, heating can be divided into two stages: at first enter the heating phase, the copper alloy tube wire rod heats under the ruhmkorff coil effect, be warmed up to the stress relief annealing temperature rapidly, be in power and the frequency that the ruhmkorff coil of heating phase selects for use and determine, generally be controlled at power 15～50kW, frequency 5～50kHz according to the sectional area of processed tube wire; Then enter the constant temperature stage, be incubated under uniform temperature, the power and the frequency that are in the ruhmkorff coil in constant temperature stage are determined according to the sectional area of processed tube wire, generally are controlled at power 15～40kW, frequency 5～50kHz;
2) tube wire enters the cooling zone subsequently, and cooling can be divided into two stages: air-cooled before this, reduce by 50 ℃～100 ℃ of temperature, and make tube wire speed of cooling under the condition of high temperature too not fast, avoid influencing the annealed effect; After be liquid cooling because the efficient of liquid cooling is higher, the tube wire that comes out from the cooling zone can be reduced the temperature to very soon coils temperature; The tube wire that comes out from the cooling zone can enter the closing quotation district;
In addition, destressing treatment temp of the present invention is in 200 ℃～400 ℃ scopes; The blowing mouth or the mouth spray of two symmetry directions adopted in described air-cooled or liquid cooling respectively; Described cooling fluid is a water; Described in heating, can apply gas shield; Described ruhmkorff coil adopts the medium-high frequency ruhmkorff coil; Described shielding gas is argon gas or nitrogen; Described tube wire travelling speed is 5～60m/min;
Its isolated plant, it is characterized in that: comprise heating, two treatment zones of cooling, wherein the heating zone is made up of at least 3 group ruhmkorff coils, every group of ruhmkorff coil is respectively by controlling its temperature by the transmitter that is installed in end turn, first group of heating selected power range 15～50kW for use with ruhmkorff coil, frequency 5～50kHz, and the constant temperature of back is 15～40kW with every group of power of at least two group ruhmkorff coils, frequency 5～50kHz;
Described cooling zone comprises air-cooled district, two treatment zones in liquid cooling district, and air-cooled district is symmetrical arranged blowpipe in tube wire both sides horizontal direction; An end of blowpipe near tube wire, have at least 8 blowing mouths, the liquid cooling district is symmetrical arranged sparge pipe in tube wire both sides horizontal direction, an end of sparge pipe near tube wire, have at least 3 mouth sprays, described sparge pipe communicates with outer cooling pool; Described cooling zone joins with the closing quotation district;
Described ruhmkorff coil adopts the medium-high frequency ruhmkorff coil, can be 3～6 groups.
The present invention has following advantage:
1. when adopting the inventive method to carry out anneal, annealing process can realize finishing synchronously with rolling and drawing procedure; Can apply gas shield, the oxidation of avoiding annealing and causing; Production unit is easy to take up room for a short time, easily is automated control.Compare with method in the prior art,, make the present invention have that anneal speed is fast, efficient is high, cost is low, can guarantee the characteristics of serialization production process because the speed of medium-high frequency induction heating is exceedingly fast.
2. employing the present invention can realize the online annealing of continuous high-efficient rate of copper alloy tube wire rod, for serialization scale operation provides technical guarantee.The present invention also is applicable to the thermal treatment of heavy caliber pipe.
Description of drawings
Fig. 1 is the structural representation of the online destressing process method isolated plant of invention tube wire.
Fig. 2 is a cooling zone apoplexy cold-zone structural representation among Fig. 1.
Fig. 3 is a liquid cooling plot structure synoptic diagram in the cooling zone among Fig. 1.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The online destressing process method of copper alloy tube wire rod of the present invention is:
At TP2 deoxidized copper tube wire 3 before the coiling of rolling and drawing, via the online destressing treatment unit of special use, adopt high-frequency induction heating, tube wire 3 is annealed in passing described online destressing treatment unit process, carry out cooling process in the exit, make tube wire 3 before coiling, finish the annealing whole process; Be specially:
1) from tube wire 3 rolling or that come out in the drawing district, at first enter described isolated plant heating zone 1, heating is divided into two stages: at first enter the heating phase, copper alloy tube wire rod 3 heating under ruhmkorff coil 11 effects, be warmed up to the temperature range (300 ℃ of present embodiments) of stress relief annealing rapidly with the speed of 50 ℃/s, the power that first group of ruhmkorff coil 11 selected for use is controlled at 15～50kW scope, the frequency control medium-high frequency ruhmkorff coil (present embodiment power 35kW, frequency 15kHz) in 5～50kHz scope; Then enter the constant temperature stage, be incubated under uniform temperature, be in constant temperature stage ruhmkorff coil 11 and adopt the medium-high frequency ruhmkorff coils, its power all is controlled at 15～40kW scope, frequency control (present embodiment 25kW, the frequency 15kHz) in 5～50kHz scope;
2) tube wire 3 enters cooling zone 2 subsequently, cooling can be divided into two stages: air-cooled before this, (TP2 deoxidized copper low temperature stress relief annealing reduces about 80 ℃ to reduce by 50 ℃～100 ℃ of temperature, present embodiment reduces by 80 ℃ of temperature), make tube wire 3 speed of cooling under the condition of high temperature too not fast, avoid influencing the annealed effect; After be liquid cooling because the efficient of liquid cooling is higher, make the tube wire 3 that comes out from the cooling zone can reduce the temperature to the temperature of coiling permission very soon; 2 tube wires that come out 3 can enter the closing quotation district from the cooling zone; Cooling fluid is but adopted in liquid cooling, and described cooling fluid is a water;
As shown in Figure 1, described isolated plant, comprise heating, two treatment zones of cooling, wherein heating zone 1 is made up of 3 groups of medium-high frequency ruhmkorff coils 11, every group of medium-high frequency ruhmkorff coil 11 is respectively by controlling its temperature by the transmitter that is installed in end turn, first group of heating selected power 35kW, frequency 15kHz for use with medium-high frequency ruhmkorff coil 11, and the constant temperature of back is with two groups of medium-high frequency ruhmkorff coils 11, and every group of power is 25kW, frequency 15kHz;
Medium-high frequency ruhmkorff coil 11 temperature controlling are to adopt the universal Controlling System of prior art, be specially: be electrically connected with medium-high frequency ruhmkorff coil 11 by the transmitter that is installed in end turn, by the output rating of silicon controlled rectifier adjustment medium-high frequency ruhmkorff coil 11, the adjustment of frequency and power and tube wire 3 travelling speed are complementary;
As Fig. 2, shown in Figure 3, described cooling zone 2 comprises air-cooled district, two treatment zones in liquid cooling district, and air-cooled district is symmetrical arranged rectangle blowpipe 21 in tube wire 3 both sides horizontal directions; An end of blowpipe 21 near tube wire 3, have the circular blowing mouths of 8 φ 2mm and (divide two rows, 4 blowing mouths of every row), the liquid cooling district is symmetrical arranged rectangle sparge pipe 22 in tube wire 3 both sides horizontal directions, an end of sparge pipe 22 near tube wire 3, have the circular mouth sprays of 3 φ 2mm, described sparge pipe 22 communicates with outer cooling pool, make the coolant temperature of mouth spray ejection be tending towards constant, control tube wire rod 3 is to coiling temperature; Described cooling zone 2 joins with the closing quotation district.
The principle of the invention is: by changing the annealing type of heating, utilize 3 groups of medium-high frequency ruhmkorff coils 11, make from tube wire 3 rolling or that pull out and be heated to the temperature range that stress relief annealing requires fast, when tube wire 3 passes through heating zone (medium-high frequency ruhmkorff coil group), realize annealing process; Tube wire 3 enters the cooling zone then, the cooling zone is made up of two portions, be air cooling and liquid cooling but, cooling fluid adopts water, recycles, and enough big cooling pool is externally arranged, make the coolant temperature of mouth spray ejection be tending towards constant, tube wire 3 temperature of coming out from the cooling zone reach the temperature range of coiling permission, have realized that like this line serialization annealing of copper alloy tube wire rod 3 is carried out synchronously with rolling and drawing procedure, and the production efficiency of raising tube wire 3 also reduces cost.
Working process of the present invention: present embodiment adopts TP2 deoxidized copper tube wire 3, directly enter described isolated plant from tube wire 3 rolling or that come out in the drawing district, at first enter the heat treated district, copper alloy tube wire rod 3 is under 11 effects of medium-high frequency ruhmkorff coil, be heated 200～400 ℃ of temperature that are warmed up to stress relief annealing rapidly, because present embodiment has used 3 groups of medium-high frequency ruhmkorff coils 11, every group of medium-high frequency ruhmkorff coil 11 controlled respectively, the task of first group of medium-high frequency ruhmkorff coil 11 mainly is a heat temperature raising, the power 35kW that selects for use, and two groups of medium-high frequency ruhmkorff coil 11 main tasks of back are uniform temperature and insulation, and the power of medium-high frequency ruhmkorff coil 11 can suitably littler 25kW; Temperature controlling is to measure temperature (as infrared thermometry etc.) by contactless method, give medium-high frequency ruhmkorff coil 11 with message feedback, adjust the output rating of medium-high frequency ruhmkorff coil 11 by silicon controlled rectifier, because the travelling speed of tube wire 3 is very fast, so this control is considered to ultimate effect, and the adjustment of the ultimate effect that arrives is complementary with tube wire 3 travelling speed.Subsequently, tube wire 3 enters cooling zone 2, and cooling divides two stages, and air-cooled before this, air-cooled benefit is to be unlikely to make tube wire 3 too fast in the high-temperature zone speed of cooling, influences the annealed effect, utilizes about 80 ℃ of air-cooled reduction certain temperatures; Then be liquid cooling,, tube wire 3 can be reduced the temperature to very soon coil temperature because the efficient of liquid cooling is higher.2 tube wires that come out 3 can enter the closing quotation district from the cooling zone.
The TP2 deoxidation copper pipe that consequently adopts the inventive method and device to handle, its stress relief annealing is very abundant, does not need to carry out annealing furnace annealing, can reach the drawing procedure that directly enters down a time.
Difference from Example 1 is:
The present invention can apply gas (argon gas or nitrogen etc.) protection in heating, present embodiment applies argon shield; Described ruhmkorff coil 11 can be 3～6 groups.
Claims (9)
1. online destressing process method of copper alloy tube wire rod, it is characterized in that: before the coiling of the rolling and drawing of tube wire, via the online destressing treatment unit of special use, adopt the medium-high frequency induction heating, tube wire is annealed in passing described online destressing treatment unit process, carry out cooling process in the exit, make tube wire before coiling, finish the annealing whole process; Be specially:
1) from tube wire rolling or that come out in the drawing district, at first enter described isolated plant heating zone, heating can be divided into two stages: at first enter the heating phase, the copper alloy tube wire rod heats under the ruhmkorff coil effect, be warmed up to the stress relief annealing temperature rapidly, be in frequency control that the ruhmkorff coil of heating phase selects for use in 5～50kHz scope, the power of selecting for use is controlled at 15～50kW power range, then enter the flat-temperature zone, under uniform temperature, be incubated, the power that is in the ruhmkorff coil of flat-temperature zone is controlled at 15～40kW power range, and the frequency control of selecting for use is in 5～50kHz scope;
2) tube wire enters the cooling zone subsequently, and cooling can be divided into two stages: air-cooled before this, reduce by 50 ℃～100 ℃ of temperature, and make tube wire speed of cooling under the condition of high temperature too not fast, avoid influencing the annealed effect; After be liquid cooling because the efficient of liquid cooling is higher, make the tube wire that comes out from the cooling zone can reduce the temperature to the temperature of coiling permission very soon; The tube wire that comes out from the cooling zone can enter the closing quotation district.
2. by the online destressing process method of the described copper alloy tube wire rod of claim 1, it is characterized in that: described stress relief annealing temperature is in 200 ℃～400 ℃ scopes.
3. by the online destressing process method of the described copper alloy tube wire rod of claim 1, it is characterized in that: the blowing mouth or the mouth spray of two symmetry directions adopted in described air-cooled or liquid cooling respectively.
4. by the online destressing process method of the described copper alloy tube wire rod of claim 1, it is characterized in that: described cooling fluid is a water.
5. by the online destressing process method of the described copper alloy tube wire rod of claim 1, it is characterized in that: described in heating, can apply gas shield.
6. by the online destressing process method of the described copper alloy tube wire rod of claim 1, it is characterized in that: described ruhmkorff coil adopts the medium-high frequency ruhmkorff coil.
7. by the online destressing process method of the described copper alloy tube wire rod of claim 5, it is characterized in that: described shielding gas is argon gas or nitrogen.
8. isolated plant by the online destressing process method of the described copper alloy tube wire rod of claim 1, it is characterized in that: comprise heating, cool off two treatment zones, wherein heating zone (1) is made up of at least 3 group ruhmkorff coils (11), every group of ruhmkorff coil (11) is respectively by controlling its temperature by the transmitter that is installed in end turn, first group of heating selected 15～50kW power range for use with ruhmkorff coil (11), the frequency control of selecting for use is in 5～50kHz scope, and the constant temperature of back is 15～40kW power range with the power of every group of at least two group ruhmkorff coil, and the frequency control of selecting for use is in 5～50kHz scope;
Described cooling zone comprises air-cooled district, two treatment zones in liquid cooling district, and air-cooled district is symmetrical arranged blowpipe (21) in tube wire (3) both sides horizontal direction; An end of blowpipe (21) near tube wire (3), have at least 8 blowing mouths, the liquid cooling district is symmetrical arranged sparge pipe (22) in tube wire (3) both sides horizontal direction, an end of sparge pipe (22) near tube wire (3), have at least 3 mouth sprays, described sparge pipe (22) communicates with outer cooling pool; Described cooling zone (2) joins with the closing quotation district.
9. by the isolated plant of the online destressing process method of the described copper alloy tube wire rod of claim 8, it is characterized in that: described ruhmkorff coil (11) adopts the medium-high frequency ruhmkorff coil, can be 3～6 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021326339A CN1172018C (en) | 2002-07-19 | 2002-07-19 | In-line destresing process and apparatus for Cu-alloy pipe or wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021326339A CN1172018C (en) | 2002-07-19 | 2002-07-19 | In-line destresing process and apparatus for Cu-alloy pipe or wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1396296A CN1396296A (en) | 2003-02-12 |
| CN1172018C true CN1172018C (en) | 2004-10-20 |
Family
ID=4746857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021326339A Expired - Lifetime CN1172018C (en) | 2002-07-19 | 2002-07-19 | In-line destresing process and apparatus for Cu-alloy pipe or wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1172018C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921978B (en) * | 2010-08-24 | 2012-07-04 | 苏州建莱机械工程技术有限公司 | Micro-tension control system of copper-pipe high-speed continuous induction annealing furnace |
| CN101935747A (en) * | 2010-08-31 | 2011-01-05 | 苏州建莱机械工程技术有限公司 | Receiving control system of tubular high-speed continuous induction annealing furnace |
| CN102011074A (en) * | 2010-12-13 | 2011-04-13 | 无锡统力电工有限公司 | Device for re-softening annealed copper |
| CN102766750A (en) * | 2012-07-18 | 2012-11-07 | 常州市武进顺达精密钢管有限公司 | High-frequency induction type continuous annealing process and high-frequency induction type continuous annealing line for precision steel pipe |
| CN103266290B (en) * | 2013-05-12 | 2015-03-11 | 北京科技大学 | Annealing method and device for regulating interface thickness and property of copper-clad aluminum composite material |
| CN103695609B (en) * | 2013-12-31 | 2015-07-15 | 北京科技大学 | High-frequency induction annealing device and technology for regulation and control of copper-clad aluminum composite flat bus |
| CN104607882B (en) * | 2015-02-08 | 2017-04-05 | 浙江同诚合金铜管有限公司 | Copper alloy tube casting and roll process exempts from pickling method for manufacturing |
| CN105986205B (en) * | 2016-07-14 | 2017-08-11 | 中铁建电气化局集团康远新材料有限公司 | The online solid-state phase changes processing unit and its processing method of a kind of rod of metal alloy base |
| CN107385159A (en) * | 2017-07-12 | 2017-11-24 | 铜陵长江铜业有限公司 | Energy-saving copper wire drawbench induction annealing equipment |
| CN107502712A (en) * | 2017-09-15 | 2017-12-22 | 中天合金技术有限公司 | A kind of copper strips bell-type annealing technique |
| CN110026446A (en) * | 2019-05-28 | 2019-07-19 | 江苏仓环铜业股份有限公司 | Copper pipe produces cooling device |
| CN110229951A (en) * | 2019-07-29 | 2019-09-13 | 湖南力方轧辊有限公司 | A kind of cold-rolling stainless steel online annealing equipment and technique |
| CN110669919A (en) * | 2019-11-18 | 2020-01-10 | 湖南湘鹤集团电缆科技股份有限公司 | Continuous heating and uninterrupted annealing device for production of vertical shaft cable |
-
2002
- 2002-07-19 CN CNB021326339A patent/CN1172018C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1396296A (en) | 2003-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1172018C (en) | In-line destresing process and apparatus for Cu-alloy pipe or wire | |
| CN101181718B (en) | Method for producing wide strip steel by bar strip continuous casting and rolling as well as system therefor | |
| RU2393240C1 (en) | Procedure and installation for production of rolled metal as hot-rolled strip out of silicon steel on base of thin slabs | |
| CN101696486B (en) | Process for rolling high-intensity titanium alloy pipe | |
| CN103710522A (en) | Copper-clad aluminium composite flat cable induction continuous annealing equipment and process using equipment | |
| CN103695609A (en) | High-frequency induction annealing device and technology for regulation and control of copper-clad aluminum composite flat bus | |
| CN101463414B (en) | Production method for steel plate | |
| JPH06136451A (en) | Method of heat treatment of metal piece | |
| CN201157843Y (en) | System for producing wide strip by thin slab casting and rolling | |
| CN109317631B (en) | Production method for improving texture uniformity of continuous casting square billet | |
| CN117488022A (en) | Control method for annealing process of high-grade non-oriented silicon steel | |
| CN2557531Y (en) | On-line stress elimination device for copper alloy pipe and wire material | |
| US4407486A (en) | Method and apparatus of hot working metal with induction reheating | |
| CN102534156A (en) | Heat treatment method for improving comprehensive mechanical performance of heat expansion pipe | |
| WO2011016758A1 (en) | Method for producing anisotropic electrotechnical sheet steel | |
| CN1218055C (en) | Therma processing method for crankshaft of high-power engine | |
| CN1189400A (en) | Cooling control method used for steels after hot rolled | |
| CN102234749A (en) | Processing apparatus for on line stress relieving of aluminum alloy bars and strips | |
| EP2708609A1 (en) | System and method for induction treatment of metals | |
| CN1189257C (en) | Method for making efficient heat conducting tube | |
| JPH08511064A (en) | Method and apparatus for continuous treatment of galvanized strip steel | |
| CN110004274B (en) | ML40Cr hot-rolled wire spheroidizing annealing process | |
| JP2006124817A (en) | Cooling device with gas jet into steel sheet continuous annealing facility and its cooling control method | |
| CN106350640A (en) | Method for continuously quenching cold-rolled steel strip | |
| CN1234882C (en) | Strong magnetic field quick complete annealing process for medium carbon low alloy structure steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINLONG PRECISION COPPER TUBE GROUP CO., LTD. Free format text: FORMER OWNER: RESEARCH CENTER OF PRECISE COPPER PIPE ENGINEERING, CHINESE ACADEMY OF SCIENCES Effective date: 20141209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141209 Address after: 453000 No. 191 Renmin Road, Henan, Xinxiang Patentee after: GOLDEN DRAGON PRECISE COPPER TUBE Group Inc. Address before: 453000 No. 2 Xin Lu, Xinxiang, Henan Patentee before: Precise Copper Pipe Engineering Research Center, Chinese Academy of Sciences |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: In-line destresing process and apparatus for Cu-alloy pipe or wire Effective date of registration: 20171215 Granted publication date: 20041020 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: WUXI GOLDEN DRAGON KAWAMURA PRECISION TUBE Co.,Ltd.|CHONGQING LONGYU PRECISE COPPER TUBE Co.,Ltd.|HENAN LONGHUI COPPER INDUSTRY Co.,Ltd.|Xinxiang Jinxiang Precision Pipe Fittings Co.,Ltd.|XINXIANG LONGTENG REFRIGERATION HIGH-TECH CO.,LTD.|JIANGSU CANGHUAN COPPER PRODUCTS CO.,LTD.|GOLDEN DRAGON PRECISE COPPER TUBE Group Inc.|GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: 2017990001045 |
|
| CP02 | Change in the address of a patent holder |
Address after: 404000 588 Airport Road, Wanzhou District, Chongqing (Wanzhou Economic Development Zone) Patentee after: GOLDEN DRAGON PRECISE COPPER TUBE Group Inc. Address before: 453000 191 Renmin Road, Xinxiang, Henan Patentee before: GOLDEN DRAGON PRECISE COPPER TUBE Group Inc. |
|
| CP02 | Change in the address of a patent holder | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190814 Granted publication date: 20041020 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GOLDEN DRAGON PRECISE COPPER TUBE Group Inc. Registration number: 2017990001045 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: In-line destresing process and apparatus for Cu-alloy pipe or wire Effective date of registration: 20190830 Granted publication date: 20041020 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GOLDEN DRAGON PRECISE COPPER TUBE Group Inc. Registration number: Y2019990000127 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20041020 |
|
| CX01 | Expiry of patent term |