CN101028644A - Short flow-path production of copper and copper alloy precisive pipe - Google Patents
Short flow-path production of copper and copper alloy precisive pipe Download PDFInfo
- Publication number
- CN101028644A CN101028644A CN 200710065281 CN200710065281A CN101028644A CN 101028644 A CN101028644 A CN 101028644A CN 200710065281 CN200710065281 CN 200710065281 CN 200710065281 A CN200710065281 A CN 200710065281A CN 101028644 A CN101028644 A CN 101028644A
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- Prior art keywords
- copper
- copper alloy
- tube
- technology
- continuous
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000010949 copper Substances 0.000 title claims abstract description 39
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 37
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 19
- 238000005266 casting Methods 0.000 claims description 12
- 238000009749 continuous casting Methods 0.000 claims description 10
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003280 down draw process Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
A short-path technology for preparing the precise copper or copper-alloy tube by precise conticasting includes such steps as smelting copper or copper alloy at 1150-1300 deg.C, continuous pulling while continuous directional solidifying to obtain the copper or copper alloy tube with 15-50 mm for external diameter and 1-5 mm for wall thickness, and drawing by 5-12 passes.
Description
Technical field
The invention belongs to the metal material processing technical field, particularly provide a kind of copper and copper alloy precision tube short flow preparation technology.
Background technology
Copper and copper alloy precision tube are the high added value copper processing materials of a quasi-representative, have extensive use in national economy and each field of defence and military.As the copper pipe that electronics, power industry are used, the threading sleeve pipe of telecommunications industry, the copper water pipe of building industry, the condenser pipe of electric power, shipbuilding industry, the water tank radiating tube of auto manufacturing, evaporimeter in air-conditioning, the refrigerator and condenser pipe etc.In addition, the big length hollow lead that is used to make big motor, particle accelerator, controlled fusion reaction device is also had higher requirement to the fine copper pipe of high-performance.
Common accurate copper pipe production method mainly contains two kinds: 1. semicontinuous strand → hot extrusion → cold rolled tube → dish draws; 2. horizontal casting pipe → strip off the skin → cold rolled tube → dish draw [see: Wang Lejun, technology and characteristics thereof that copper pipe is produced, the Shanghai non-ferrous metal, 1999, Vol.20, No.1, p.22～25; Li Yaoqun, Yi Yinfei write, modern bronze pan tube production technology, metallurgical industry publishing house, 2005]; Semicontinuous ingot casting and horizontal casting pipe have the advantage of production technology maturation, constant product quality, but have shortcomings such as complex manufacturing, long flow path, energy resource consumption are big, cost height.Therefore, the short flow process of development, low cost, processing technology of preparing energy-saving and cost-reducing, surface quality is excellent, dimensional accuracy the is high accurate copper pipe of high-performance are very necessary.
On the other hand, continuous directional solidification method (also claiming hot-mold continuous cast) continuous casting technology efficiently organically combines with advanced directional solidification technique, and comprehensively the advantage of the two remedies deficiency separately, is a kind of novel nearly end form process technology.The continuous directional solidification method can be any in glass tube down-drawing, horizontal casting method or the up-drawing method (seeing: thank and build new etc. writing, materials processing new technology and new technology, p.82～86, metallurgical industry publishing house, 2004).The major advantage of this method is: casting mold is heating, the hot-fluid of type inner metal liquid is mainly along cast direction one-way transmission, satisfy the condition of directional solidification, can obtain complete folk prescription to the continuous columnar structure of solidifying, this tissue helps improving performances such as the intensity, conduction, processing of wire rod, tubing; Metal freezing is finished near the casting mold outlet, does not have rubbing action between frozen metal and the casting mold, helps obtaining bright coagulation surface.
Summary of the invention
The object of the present invention is to provide the short flow preparation technology of a kind of copper and copper alloy precision tube, adopt continuous casting accurately to control solidification mode, prepare nearly end form light thin-wall copper pipe, copper pipe can directly be used as product, also can be directly used in dish trombone slide base, shaping small dimension thin-walled precision tube.
The alleged continuous casting of the present invention is accurately controlled solidification mode, is meant to adopt the continuous directional solidification principle, and the continuous casting and solidifying process is carried out accurately control, obtains to have the copper pipe of glossy surface and continuous cylindrical crystalline texture.
The characteristics of copper of the present invention and copper alloy precision tube are: continuous casting light thin-wall pipes diameter is φ 15～50mm, and wall thickness 1～5mm has continuous along its length columanar structure, and the tubing continuous length can be determined arbitrarily as required; Continuous casting light tubing is used for dish draws processing, accurate copper of shaping small dimension and copper-alloy pipe-material, diameter is φ 4.0～20.0mm, wall thickness is 0.35～2.0mm.
The copper or the copper-alloy pipe-material of the present invention's preparation, need not processing such as annealing, pickling, being directly used in the tubing dish draws, through 5～12 passage belt carcass cephalic discs draw, vertical pulling or sky draw, through after the copper or the copper alloy precision tube size range of processing formed thereby be the copper and the copper alloy precision tube of φ 4.0 * 0.35～φ 20.0 * 2.0mm scope; Can implement 1～2 intermediate annealing as required in the drawing process, its annealing temperature is lower than the recrystallization temperature of tubing.
The advantage of technology of the present invention is:
With traditional strand-extruding-cold rolled tube-dish draws or horizontal casting-strip off the skin-technology that cold rolled tube-dish draws compares, and can significantly shorten technology, improves lumber recovery; Continuous casting tubing has continuous cylindrical crystalline texture, and its cold working extending and deforming capacity is better than the pipe of conventional cast or Deformation structure, helps improving pass reduction, reduces drawing passes; Can reduce 1～2 time even economize and remove the intermediate annealing operation than common process.Be of a size of the accurate copper pipe of φ 12.0 * 0.7mm as production, adopt semicontinuous ingot casting method production generally to need 12～14 procedures, and adopt explained hereafter of the present invention only to need 5～6 procedures, production efficiency improves greatly, production cost reduces, and energy resource consumption reduces significantly;
2. conventional method prepares the following accurate copper pipe of external diameter φ 20mm, and yield rate is 50～60%, and adopts technology of the present invention, and yield rate can be brought up to more than 90%;
3. the continuous casting copper pipes that technology of the present invention obtains is organized as oriented freezing organization, has excellent plastic deformation ability, helps improving pass reduction, reduces drawing passes; Can reduce 1～2 time even economize and remove the intermediate annealing operation than common process, thereby can increase substantially the working (machining) efficiency of accurate copper pipe.
The specific embodiment
Be of a size of the preparation technology of the accurate pure copper tube of φ 10.0 * 0.6mm.Adopting copper content is that 99.99% oxygen-free copper is raw material, and wherein oxygen content is lower than 10ppm.At first oxygen-free copper is melted down at 1250 ℃, adopt glass tube down-drawing on special-purpose continuous directional solidification apparatus, to prepare the bright thin-wall copper pipe of φ 39.0 * 2.0mm with the casting speed of 100mm/min.Bright thin-wall copper pipe directly coiled draw, become the precision tube of φ 10.0 * 0.6mm through 7 passes of drawing, the drawing passes lengthening coefficient is between 1.35～1.45.
Claims (4)
1, the short flow preparation technology of a kind of copper and copper alloy tube precision tube, it is characterized in that, adopt continuous casting accurately to control solidification mode, directly prepare bright thin-wall pipes, technology is, at first copper or copper alloy are melted down at 1150～1300 ℃, adopt glass tube down-drawing, horizontal casting method or up-drawing method casting speed with 10～250mm/min on continuous directional solidification apparatus to prepare copper or copper alloy tube; Copper or copper alloy tube directly coiled draw, become copper or copper alloy precision tube through 5～12 passes of drawing, the drawing passes lengthening coefficient is between 1.30～1.50; Continuous casting tubing has continuous along its length columanar structure, is directly used in purposes such as electron electric power, water channel, heat exchange without following process.
According to the described technology of claim 1, it is characterized in that 2, the mode that the tubing dish draws is for the belt carcass cephalic disc is drawn, vertical pulling or sky draw.
According to the described technology of claim 1, it is characterized in that 3, implement 1～2 intermediate annealing as required in the drawing process, its annealing temperature is lower than the recrystallization temperature of tubing.
According to the described technology of claim 1, it is characterized in that 4, described copper or continuously casting copper alloy pipe diameter are 15～50mm, wall thickness is 1～5mm; Through after processing formed thereby copper or copper alloy precision tube size range be φ 4.0 * 0.35～φ 20.0 * 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100652819A CN100496808C (en) | 2007-04-10 | 2007-04-10 | Short flow-path production of copper and copper alloy precise pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100652819A CN100496808C (en) | 2007-04-10 | 2007-04-10 | Short flow-path production of copper and copper alloy precise pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028644A true CN101028644A (en) | 2007-09-05 |
| CN100496808C CN100496808C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100652819A Expired - Fee Related CN100496808C (en) | 2007-04-10 | 2007-04-10 | Short flow-path production of copper and copper alloy precise pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100496808C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885008A (en) * | 2010-06-08 | 2010-11-17 | 中铝上海铜业有限公司 | Continuous production method of overlong copper alloy pipe |
| CN101492798B (en) * | 2009-03-13 | 2010-12-29 | 无锡隆达金属材料有限公司 | Pickling free producing process for copper alloy tube |
| CN102039323A (en) * | 2010-12-02 | 2011-05-04 | 金川集团有限公司 | Heated-mold continuous casting-continuous drawing method for brass alloy condenser pipe |
| CN102154599A (en) * | 2011-03-17 | 2011-08-17 | 北京科技大学 | Short-flow high-efficiency production method for white brass alloy pipes |
| CN102179487A (en) * | 2010-10-13 | 2011-09-14 | 中国科学院金属研究所 | Short-flow preparation process for thick-wall ring piece and thick-wall tube piece |
| CN102260840A (en) * | 2011-07-26 | 2011-11-30 | 北京科技大学 | Short-flow efficient production method for brass tubes |
| CN102304686A (en) * | 2011-07-26 | 2012-01-04 | 北京科技大学 | Short-flow efficient production method of pure copper tube |
| CN102489535A (en) * | 2011-11-29 | 2012-06-13 | 北京科技大学 | Method for preparing and processing cupronickel capillary with high efficiency |
| CN102581060A (en) * | 2012-02-20 | 2012-07-18 | 绍兴市力博电气有限公司 | Method for processing copper tube having circular inside and quadrate outside |
| CN104451251A (en) * | 2014-11-18 | 2015-03-25 | 北京科技大学 | High-iron cupronickel alloy pipe and short-process production method thereof |
| CN105020565A (en) * | 2015-07-30 | 2015-11-04 | 绍兴市力博电气有限公司 | Copper-silver alloy strip for reverser and production process of copper-silver alloy strip |
| CN107538186A (en) * | 2017-09-26 | 2018-01-05 | 中天合金技术有限公司 | A kind of production technology of up-drawing method thin-walled light copper pipe |
| CN107738067A (en) * | 2017-09-13 | 2018-02-27 | 中天合金技术有限公司 | A kind of random length half-hard state copper pipe bus production technology |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039328A (en) * | 2010-12-02 | 2011-05-04 | 金川集团有限公司 | Heated mould continuous casting-continuous drawing method of cupronickel alloy condenser pipes |
-
2007
- 2007-04-10 CN CNB2007100652819A patent/CN100496808C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492798B (en) * | 2009-03-13 | 2010-12-29 | 无锡隆达金属材料有限公司 | Pickling free producing process for copper alloy tube |
| CN101885008A (en) * | 2010-06-08 | 2010-11-17 | 中铝上海铜业有限公司 | Continuous production method of overlong copper alloy pipe |
| CN102179487B (en) * | 2010-10-13 | 2013-04-17 | 中国科学院金属研究所 | Short-flow preparation process for thick-wall ring piece and thick-wall tube piece |
| CN102179487A (en) * | 2010-10-13 | 2011-09-14 | 中国科学院金属研究所 | Short-flow preparation process for thick-wall ring piece and thick-wall tube piece |
| CN102039323A (en) * | 2010-12-02 | 2011-05-04 | 金川集团有限公司 | Heated-mold continuous casting-continuous drawing method for brass alloy condenser pipe |
| CN102154599A (en) * | 2011-03-17 | 2011-08-17 | 北京科技大学 | Short-flow high-efficiency production method for white brass alloy pipes |
| CN102260840A (en) * | 2011-07-26 | 2011-11-30 | 北京科技大学 | Short-flow efficient production method for brass tubes |
| CN102304686A (en) * | 2011-07-26 | 2012-01-04 | 北京科技大学 | Short-flow efficient production method of pure copper tube |
| CN102260840B (en) * | 2011-07-26 | 2012-10-17 | 北京科技大学 | Short-flow efficient production method for brass tubes |
| CN102489535A (en) * | 2011-11-29 | 2012-06-13 | 北京科技大学 | Method for preparing and processing cupronickel capillary with high efficiency |
| CN102581060A (en) * | 2012-02-20 | 2012-07-18 | 绍兴市力博电气有限公司 | Method for processing copper tube having circular inside and quadrate outside |
| CN102581060B (en) * | 2012-02-20 | 2014-03-19 | 绍兴市力博电气有限公司 | Method for processing copper tube having circular inside and quadrate outside |
| CN104451251A (en) * | 2014-11-18 | 2015-03-25 | 北京科技大学 | High-iron cupronickel alloy pipe and short-process production method thereof |
| CN104451251B (en) * | 2014-11-18 | 2016-08-17 | 北京科技大学 | A kind of high ferro White brass alloy tubing and short-flow production method thereof |
| CN105020565A (en) * | 2015-07-30 | 2015-11-04 | 绍兴市力博电气有限公司 | Copper-silver alloy strip for reverser and production process of copper-silver alloy strip |
| CN105020565B (en) * | 2015-07-30 | 2018-04-10 | 浙江力博实业股份有限公司 | A kind of commutator Kufil band and its production technology |
| CN107738067A (en) * | 2017-09-13 | 2018-02-27 | 中天合金技术有限公司 | A kind of random length half-hard state copper pipe bus production technology |
| CN107538186A (en) * | 2017-09-26 | 2018-01-05 | 中天合金技术有限公司 | A kind of production technology of up-drawing method thin-walled light copper pipe |
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| CN100496808C (en) | 2009-06-10 |
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