CN1614047A - Electronic tough copper and its production - Google Patents
Electronic tough copper and its production Download PDFInfo
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- CN1614047A CN1614047A CN 200410060550 CN200410060550A CN1614047A CN 1614047 A CN1614047 A CN 1614047A CN 200410060550 CN200410060550 CN 200410060550 CN 200410060550 A CN200410060550 A CN 200410060550A CN 1614047 A CN1614047 A CN 1614047A
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Abstract
The invention was involved in producing electronic annealed copper. The mass ratio of ingredient was : Cu is greater than or equal to 99.90%,50-600ppmO, P is less than or equal to 0.003%,Fe is less than or equal to 0.005% , little foreign substance. The process contained the following steps: a) Old red copper and anodic copper were used as material. Usage of old red copper was more than 70%. Then they were smelted in the induction cooker in the open state. b) They were injected into the converter and then the temperature was hold by charcoal, graphite or other substance with charcoal .At the same time, content of oxygen was controlled. c) Semicontinuous casting machine and crystallizer were used to cast under the protection of adjustable nitrogen. The content of oxygen was controlled under 50-600ppm during insulation work and casting. d) Annealed coppers in four states (M,Y4,Y2,Y1) were produced by subsequent deforming.
Description
Affiliated technical field
The present invention relates to nonferrous materials and processing technique field, mainly propose a kind of electronics tough pitch copper and producing and manufacturing technique thereof.
Background technology
Along with electronization, automatization, informationization and web development, nonferrous materials is more and more general in the application of electron trade, simultaneously to the performance requriements of electronic material also than higher, particularly the electric conductivity to electronic material proposes higher requirement: hard state surpasses 98%IACS, soft state reaches more than the 100%IACS.Therefore; relate to vacuum and antivacuum with the electronic devices and components metallic substance; usually adopt oxygenless copper material; oxygen free copper must be made raw material production with Cu-CATH-1; its main production: blister copper, composition brass, residual level → fusion → oxidation → reduction → cast copper positive plate → electrolysis → Cu-CATH-1 plate → shearing → oven dry → melting → static deoxidation → casting etc.; technologies such as wherein, melting, static deoxidation, casting must be taked to cover, gas shield, sealing are produced under airtight fully secluding air state.Oxygenless copper material is widely used in the vacuum and the antivacuum electronic devices and components of using of high tenacity, high conductivity requirement, but its cost is higher, technology is various, and the Composition Control of oxygen free copper is comparatively strict in producing, minimum will reaching below the 30PPm, even below the 5PPm, old material in the follow-up deformation processing adds up month by month simultaneously, digestion is restricted, and causes logistics not smooth, and fund overstocks in a large number, perhaps demote and use, increased cost as raw material.In addition, its electric conductivity hinge of copper alloy is low, does not satisfy the requirement of electron trade to the material high conductivity, only has the electric conductivity of silver-bearing copper and copper master alloy higher, but there is the defective of production cost height and production technique more complicated equally in they.
Summary of the invention
The objective of the invention is to propose a kind of electronics tough pitch copper, make the electronics tough pitch copper of proposition can satisfy antivacuum requirement with electronic devices and components material high conductivity, the general relatively red copper of product performance is uniform and stable, and has good toughness.
Another object of the present invention is to propose a kind of processing method of producing the electronics tough pitch copper.
Its composition of electronics tough pitch copper that the present invention proposes is: by weight: Cu 〉=99.90%, O:50～600PPm, surplus P≤0.003%, Fe≤0.005% and unavoidable impurities, therefore, its electric conductivity can satisfy antivacuum with the requirement of electronic devices and components material to high conductivity, can avoid oxygen free copper cost height again, the defective that complex process and the old material of follow-up deformation processing overstock, simultaneously, its mechanical property influence to copper is little on the one hand between 50～600PPm for O, the trace impurity that contains solid solution in the micro-oxidable copper of oxygen on the other hand, as: Fe, Sn, P etc., the impurity of solid solution is reduced, purify the purpose of copper melts quality; P≤0.003%, Fe≤0.005% can guarantee electric conductivity and toughness.
The processing method of production electronics tough pitch copper proposed by the invention: batching adopts old material of red copper and cathode copper; The weight of the old material of red copper ≯ 70%; Adopt the open type melting, reach the impurity such as Fe, P in the cupric oxide melt, purify the purpose of copper melts quality; And in insulating process, use charcoal, graphite or other carbonaceous materials to cover, reach the purpose of insulation and control oxygen level; And in castingprocesses, use semicontinuous caster and crystallizer and use adjustable N
2Gas shield is cast, and by above-mentioned processing method, the Control for Oxygen Content that makes the electronics tough pitch copper obtains soft state (M), 1/4 hard state (Y through follow-up deformation processing again between 50～600PPm
4), semihard state (Y
2), 3/4 hard state (Y
1) tough copper product.Its raw material adopts old material of a certain proportion of red copper and cathode copper in the production method technology of the present invention, and its consumption can reach 70%, can make full use of the old material that oxygen free copper is produced thus, has further reduced production cost.
Description of drawings
Accompanying drawing 1 is technological process of production figure of the present invention.
Embodiment
Embodiment 1:
A kind of robot calculator miniature transformer winding band:
Specification: 0.05-0.08 * 305mm, state: M, thickness deviation: ± 0.01mm, electric conductivity: 〉=98%IACS.
At first weight batching is adopted old material of 60% red copper and 40% cathode copper input to have and is carried out the open type melting in the core line frequency induction furnace, and 1180 ℃ of melt tapping temperatures are injected converter and are incubated and control oxygen level with charcoal covering melt liquid level, and use adjustable N
2Cast do gas shield; Use semicontinuous caster and crystallizer to cast in the casting; Oxygen level O is controlled between 50～600PPm in insulation and castingprocesses; 1150 ℃ of casting temps, casting hydraulic pressure 60Kpa, casting speed 5m/h; Ingot casting carries out sawing on request, and ingot casting surface and inside do not have mass defect, and the qualified robot calculator tough copper product of miniature transformer winding band is provided.Ingot casting is made the robot calculator that meets technical requirements with miniature transformer winding band through heating → hot rolling → mill face → breaking down → annealing → finish rolling → finished products → conventional complete processings such as shearing.Finished product is after testing: chemical ingredients is made of Cu:99.97%, O:200PPm, surplus P:0.002%, Fe:0.002% and unavoidable impurities, and its electric conductivity is 100%IACS, meets contract requirement.
Embodiment 2:
A kind of conduction handware copper strips:
Specification: 1.5 * 600 * 1500mm, state: Y
2, thickness deviation: by the GB requirement, electric conductivity: 〉=101%IACS.
At first weight batching is adopted old material of 50% red copper and 50% cathode copper input to have and is carried out the open type melting in the core line frequency induction furnace, and 1200 ℃ of melt tapping temperatures are injected converter and are incubated and control oxygen level with charcoal covering melt liquid level, and use adjustable N
2Cast do gas shield; Use semicontinuous caster and crystallizer to cast in the casting; Oxygen level O is controlled between 50～600PPm in insulation and castingprocesses; 1180 ℃ of casting temps, casting hydraulic pressure 80Kpa, casting speed 7m/h; Ingot casting carries out sawing on request, and ingot casting surface and inside do not have mass defect, and the qualified tough copper product of conduction handware is provided.Ingot casting is again through being rolled into the conduction handware copper strips that meets technical requirements with identical follow-up deformation processing.Finished product is after testing: chemical ingredients is made of Cu:99.98%, O:150PPm, surplus P:0.001%, o:0.002% and unavoidable impurities, and its electric conductivity is 101.1%IACS, meets contract requirement.
Embodiment 3:
A kind of conduction connecting band:
Specification: 0.5 * 600 * 2000mm, state: Y, thickness deviation: by the GB requirement, electric conductivity: 〉=98.3%IACS.
At first weight batching is adopted old material of 70% red copper and 30% cathode copper input to have and is carried out the open type melting in the core line frequency induction furnace, and 1200 ℃ of melt tapping temperatures are injected converter and are incubated and control oxygen level with the charcoal covering, and use adjustable N
2Cast do gas shield; Use semicontinuous caster and crystallizer to cast in the casting; Oxygen level O is controlled between 50～600PPm in insulation and castingprocesses; 1180 ℃ of casting temps, casting hydraulic pressure 100Kpa, casting speed 9m/h; Ingot casting carries out sawing on request, and ingot casting surface and inside do not have mass defect, and the qualified tough copper product of conduction connecting band is provided.The samely be rolled into the conduction connecting band that meets technical requirements through follow-up deformation processing again.Finished product is after testing: chemical ingredients is made of Cu:99.95%, O:300PPm, surplus P:0.002%, Fe:0.003% and unavoidable impurities, and its electric conductivity is 98.5%IACS, meets contract requirement.
Claims (3)
1, a kind of electronics tough pitch copper, feature of the present invention is: its composition is: by weight, Cu 〉=99.90%, O:50～600PPm, surplus P≤0.003%, Fe≤0.005% and unavoidable impurities.
2, the processing method of the described electronics tough pitch copper of production claim 1 is characterized in that: batching adopts old material of red copper and cathode copper, and the old material consumption of red copper (weight) ≯ 70% uses induction furnace to carry out the open type melting; Inject converter and adopt charcoal, graphite or other carbonaceous material to be incubated and to control oxygen level as insulating covering agent; Use semicontinuous caster and crystallizer and use adjustable N
2Gas shield is cast, and Control for Oxygen Content obtains soft state (M), 1/4 hard state (Y through follow-up deformation processing between 50～600PPM in insulation and casting
4), semihard state (Y
2), 3/4 hard state (Y
1) tough copper product.
3, the processing method of production electronics tough pitch copper according to claim 2 is characterized in that: melting out furnace temperature is 1180～1200 ℃, and casting temp is 1150～1180 ℃, and casting hydraulic pressure is 30～100Kpa, and casting speed is 5～9m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060550 CN1276107C (en) | 2004-09-30 | 2004-09-30 | Electronic tough copper and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060550 CN1276107C (en) | 2004-09-30 | 2004-09-30 | Electronic tough copper and its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1614047A true CN1614047A (en) | 2005-05-11 |
| CN1276107C CN1276107C (en) | 2006-09-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410060550 Expired - Fee Related CN1276107C (en) | 2004-09-30 | 2004-09-30 | Electronic tough copper and its production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1276107C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864310A (en) * | 2012-10-10 | 2013-01-09 | 芜湖恒泰有色线材股份有限公司 | Method for producing anaerobic polished copper bars by waste red copper wires |
| CN103077763A (en) * | 2012-12-17 | 2013-05-01 | 青岛创佳铜业有限公司 | Copper strip for long cable and production method |
| CN106086484A (en) * | 2016-06-28 | 2016-11-09 | 中铝华中铜业有限公司 | A kind of production technology for casting of hyperoxia tough pitch copper |
| CN112725634A (en) * | 2019-10-14 | 2021-04-30 | 中铝洛阳铜加工有限公司 | Production process method of low-oxygen large-tonnage oxygen-free copper ingot |
| CN114540564A (en) * | 2022-01-27 | 2022-05-27 | 武汉理工大学 | Method for extracting metallic copper from domestic garbage incineration bottom slag copper sand |
-
2004
- 2004-09-30 CN CN 200410060550 patent/CN1276107C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864310A (en) * | 2012-10-10 | 2013-01-09 | 芜湖恒泰有色线材股份有限公司 | Method for producing anaerobic polished copper bars by waste red copper wires |
| CN103077763A (en) * | 2012-12-17 | 2013-05-01 | 青岛创佳铜业有限公司 | Copper strip for long cable and production method |
| CN103077763B (en) * | 2012-12-17 | 2016-04-06 | 青岛创佳铜业有限公司 | A kind of production method of long copper strip for electric cable |
| CN106086484A (en) * | 2016-06-28 | 2016-11-09 | 中铝华中铜业有限公司 | A kind of production technology for casting of hyperoxia tough pitch copper |
| CN112725634A (en) * | 2019-10-14 | 2021-04-30 | 中铝洛阳铜加工有限公司 | Production process method of low-oxygen large-tonnage oxygen-free copper ingot |
| CN114540564A (en) * | 2022-01-27 | 2022-05-27 | 武汉理工大学 | Method for extracting metallic copper from domestic garbage incineration bottom slag copper sand |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1276107C (en) | 2006-09-20 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: ALUMINUM LUOYANG COPPER CO., LTD. Free format text: FORMER OWNER: LUOYANG COPPER PROCESSING GROUP CO LTD Effective date: 20060324 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20060324 Address after: 471039 No. 50, Jianshe Road, Henan, Luoyang Applicant after: Luoyang Copper Processing Group Co., Ltd. Address before: 471039 No. 50, Jianshe Road, Henan, Luoyang Applicant before: Luoyang Copper Processing Group Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060920 Termination date: 20130930 |