CN1785586A - Production method of B7 heat transfer copper alloy seamless pipe - Google Patents
Production method of B7 heat transfer copper alloy seamless pipe Download PDFInfo
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- CN1785586A CN1785586A CN 200510123083 CN200510123083A CN1785586A CN 1785586 A CN1785586 A CN 1785586A CN 200510123083 CN200510123083 CN 200510123083 CN 200510123083 A CN200510123083 A CN 200510123083A CN 1785586 A CN1785586 A CN 1785586A
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Abstract
A technology for manufacturing the heat-conducting seamless pipe made of B7 Cu-alloy includes such steps as smelting B7 Cu-alloy in electric furnace, casting, hydraulic pressing to become slender tubular blank, cold rolling, annealing in controllable protective gas, cold drawing until its wall thickness is 0.5-1.2 mm, and removing surficial layer by cold drawing. Its advantage is no need of acid washing.
Description
Technical field
The present invention relates to the production method of metal tube, specifically the production method of an Albatra metal-seamless copper pipe.
Background technology
Copper alloy seamless pipe is applied to warship, submarine and seagoing vessel shipping industry etc. usually to have on corrosive product.In the prior art, need use pickling process when producing this seamless copper pipe, therefore and the waste water that produces has caused very big pollution to environment, the production cost that also increases simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of production method of B7 heat transfer copper alloy seamless pipe, because this method without pickling, thereby has thoroughly been stopped the pollution of waste water to environment when producing seamless copper pipe.
According to design provided by the present invention, the production method of B7 heat transfer copper alloy seamless pipe comprises: a, semi-continuous casting: the B7 copper alloy is placed heat fused becomes copper alloy liquid in the main frequency furnace, when temperature reaches 1250 ℃～1300 ℃, come out of the stove, pour into and pour into copper ingot in the ingot mould; B, the extruding of big ingot casting: on hydraulic press, above-mentioned copper ingot is squeezed into elongated tubular semifinished; C, cold rolling: on cold-rolling mill with the thinner longer tubulose copper rod of tubular semifinished cold rolling one-tenth; D, bright annealing: in controlled protective gas, the tubulose copper rod was annealed 50～70 minutes under 750 ℃～780 ℃ temperature; E, stretching: carry out cold drawnly on drawing-in machine, it is 0.5～1.2 millimeter copper pipe that the tubulose copper rod is drawn into wall thickness; F, strip off the skin: cold drawn on drawing-in machine, remove the epidermis of copper pipe, to remove the blemish of copper pipe.
Carrying out finished product after stripping off the skin again stretches: pull into the finished product copper pipe that meets size by customer requirements.After stretching, finished product detects a flaw again: utilize defectoscope to check quality problems such as having or not sand holes in the copper pipe, check its chemical composition, measure its physical property with tensile testing machine with spectroanalysis instrument.Carrying out the finished product bright annealing after the flaw detection again: in annealing furnace, carry out annealing in process under 680 ℃～700 ℃ the temperature.
In semi-continuous casting, used main frequency furnace is a screw vibration formula main frequency furnace, pours into 180 ± 5 millimeters of diameters after dissolving earlier, the copper ingot that length is 6300 ± 50 millimeters, be cut to 180 ± 5 millimeters of diameters, the copper ingot that length is 350～420 millimeters at Metal Cutting Machine Tool again.
When big ingot casting extruding, on the twin-tub horizontal hydraulic machine, be squeezed into 82 ± 5 millimeters of diameters, 9 ± 2 millimeters of wall thickness, 4500 ± 50 millimeters of length tubular semifinished.When cold rolling, with 42 ± 2 millimeters of tubular semifinished cold rolling one-tenth diameters, 2.2 ± 0.2 millimeters of wall thickness, the tubulose copper rod that length is 32000 ± 100 millimeters.When stretching, the tubulose copper rod is drawn into the copper pipe that length reaches hundreds of meters.When stripping off the skin, the epidermal thickness that removes is 0.1～0.12 millimeter.
Advantage of the present invention is: owing to all there is not pickling process in whole technology, therefore all do not have the waste water of contaminated environment to discharge in whole process of production, avoided the pollution problem to environment.Compare with traditional handicraft, process chart of the present invention is obviously shorter, has therefore shortened the production time, has improved production efficiency.
Description of drawings
Fig. 1 is traditional process chart.
Fig. 2 is a process chart of the present invention.
The specific embodiment
The production method of B7 heat transfer copper alloy seamless pipe comprises:
A, semi-continuous casting: the B7 copper alloy placed heat fused becomes copper alloy liquid in the screw vibration formula main frequency furnace, when reaching 1250 ℃～1300 ℃, temperature comes out of the stove, pour in the ingot mould, pour into 180 ± 5 millimeters of diameters, the copper ingot that length is 6300 ± 50 millimeters, be cut to 180 ± 5 millimeters of diameters, the copper ingot that length is 350～420 millimeters at Metal Cutting Machine Tool again;
B, the extruding of big ingot casting: on the twin-tub horizontal hydraulic machine, above-mentioned copper ingot is squeezed into 82 ± 5 millimeters of diameters, 9 ± 2 millimeters of wall thickness, 4500 ± 50 millimeters of length tubular semifinished;
C, cold rolling: on cold-rolling mill with 42 ± 2 millimeters of tubular semifinished cold rolling one-tenth diameters, 2.2 ± 0.2 millimeters of wall thickness, the tubulose copper rod that length is 32000 ± 100 millimeters;
D, bright annealing: in controlled protective gas, the tubulose copper rod was annealed 50～70 minutes under 750 ℃～780 ℃ temperature;
E, stretching: carry out cold drawnly on drawing-in machine, it is 0.5～1.2 millimeter that the tubulose copper rod is drawn into wall thickness, and length reaches hundreds of meters copper pipe;
F, strip off the skin: cold drawn on drawing-in machine, remove the epidermis of copper pipe, to remove the blemish of copper pipe, the epidermal thickness that removes is 0.1～0.12 millimeter;
G, finished product stretch: pull into the finished product copper pipe that meets the figure paper size by customer requirements;
H, flaw detection: utilize defectoscope to check quality problems such as having or not sand holes in the copper pipe, check its chemical composition, measure its physical property, utilize the inner and outer diameter and the length of measurer check copper pipe with tensile testing machine with spectroanalysis instrument;
I, finished product bright annealing: above-mentioned copper pipe in annealing furnace, is carried out annealing in process under 680 ℃～700 ℃ the temperature; Packing is put in storage then.
The B7 heat transfer copper alloy is a kind of new national trade mark, compares with the material of traditional production copper pipe, and the contained rare precious metals nickel of this material is fewer, so production cost is lower, but its combination property does not reduce through after the PROCESS FOR TREATMENT of the present invention.The composition of this Albatra metal-is: Ni+Co 6～7%, and Fe 0.2%, and Pb 0.01%, and P 0.01%, and S 0.01%, and C 0.03%, and Sb 0.005%, and Bi 0.002%, and As 0.01%, and all the other are Cu, and unit is a percetage by weight.
Claims (9)
1, the production method of B7 heat transfer copper alloy seamless pipe is characterized in that: a, semi-continuous casting: the B7 copper alloy is placed heat fused becomes copper alloy liquid in the main frequency furnace, come out of the stove when temperature reaches 1250 ℃～1300 ℃, pour into and pour into copper ingot in the ingot mould; B, the extruding of big ingot casting: on hydraulic press, above-mentioned copper ingot is squeezed into elongated tubular semifinished; C, cold rolling: on cold-rolling mill with the thinner longer tubulose copper rod of tubular semifinished cold rolling one-tenth; D, bright annealing: in controlled protective gas, the tubulose copper rod was annealed 50～70 minutes under 750 ℃～780 ℃ temperature; E, stretching: carry out cold drawnly on drawing-in machine, it is 0.5～1.2 millimeter copper pipe that the tubulose copper rod is drawn into wall thickness; F, strip off the skin: cold drawn on drawing-in machine, remove the epidermis of copper pipe, to remove the blemish of copper pipe.
2, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1 is characterized in that: carry out finished product again and stretch after stripping off the skin: pull into the finished product copper pipe that meets size by customer requirements.
3, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1, it is characterized in that: after finished product stretches, detect a flaw again: utilize defectoscope to check quality problems such as having or not sand holes in the copper pipe, check its chemical composition with spectroanalysis instrument, measure its physical property with tensile testing machine.
4, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1 is characterized in that: carrying out the finished product bright annealing after the flaw detection again: in annealing furnace, carry out annealing in process under 680 ℃～700 ℃ the temperature.
5, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1, it is characterized in that: in semi-continuous casting, used main frequency furnace is a screw vibration formula main frequency furnace, pour into 180 ± 5 millimeters of diameters after dissolving earlier, the copper ingot that length is 6300 ± 50 millimeters, be cut to 180 ± 5 millimeters of diameters, the copper ingot that length is 350～420 millimeters at Metal Cutting Machine Tool again.
6, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1 is characterized in that: when big ingot casting extruding, be squeezed into 82 ± 5 millimeters of diameters on the twin-tub horizontal hydraulic machine, 9 ± 2 millimeters of wall thickness, 4500 ± 50 millimeters of length tubular semifinished.
7, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1 is characterized in that: when cold rolling, with 42 ± 2 millimeters of tubular semifinished cold rolling one-tenth diameters, 2.2 ± 0.2 millimeters of wall thickness, the tubulose copper rod that length is 32000 ± 100 millimeters.
8, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1 is characterized in that: when stretching, the tubulose copper rod is drawn into the copper pipe that length reaches hundreds of meters.
9, the production method of B7 heat transfer copper alloy seamless pipe as claimed in claim 1 is characterized in that: when stripping off the skin, the epidermal thickness that removes is 0.1～0.12 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101230834A CN100513059C (en) | 2005-12-12 | 2005-12-12 | Production method of B7 heat transfer copper alloy seamless pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101230834A CN100513059C (en) | 2005-12-12 | 2005-12-12 | Production method of B7 heat transfer copper alloy seamless pipe |
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| CN1785586A true CN1785586A (en) | 2006-06-14 |
| CN100513059C CN100513059C (en) | 2009-07-15 |
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| CNB2005101230834A Expired - Fee Related CN100513059C (en) | 2005-12-12 | 2005-12-12 | Production method of B7 heat transfer copper alloy seamless pipe |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100469517C (en) * | 2007-05-29 | 2009-03-18 | 江阴新华宏铜业有限公司 | Method for preparing copper and nickel alloy seamless copper tube |
| 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 |
| CN102172649A (en) * | 2011-01-17 | 2011-09-07 | 上海威嘉金属材料有限公司 | Scalping process for descaling inside and outside of non-ferrous metal pipe |
| CN101994875B (en) * | 2009-08-25 | 2012-08-22 | 山东中佳新材料有限公司 | Method for manufacturing seamless copper pipe and rod core used for cold rolling mill |
| CN103157692A (en) * | 2011-12-09 | 2013-06-19 | 北京有色金属研究总院 | Preparation method for zinc-based alloy specially-shaped tube |
| CN104174690A (en) * | 2014-07-21 | 2014-12-03 | 苏州贝思特金属制品有限公司 | Production process of sanitary stainless steel seamless pipe |
| CN104400352A (en) * | 2014-11-18 | 2015-03-11 | 广东龙丰精密铜管有限公司 | Method for processing semi-hard copper pipes |
| CN114472580A (en) * | 2021-12-20 | 2022-05-13 | 上海海亮铜业有限公司 | Preparation method of high-strength super-long cupronickel alloy capillary tube |
| CN114850238A (en) * | 2022-04-27 | 2022-08-05 | 上海海亮铜业有限公司 | Preparation method of iron bronze pipe |
-
2005
- 2005-12-12 CN CNB2005101230834A patent/CN100513059C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100469517C (en) * | 2007-05-29 | 2009-03-18 | 江阴新华宏铜业有限公司 | Method for preparing copper and nickel alloy seamless copper tube |
| 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 |
| CN101994875B (en) * | 2009-08-25 | 2012-08-22 | 山东中佳新材料有限公司 | Method for manufacturing seamless copper pipe and rod core used for cold rolling mill |
| CN102172649A (en) * | 2011-01-17 | 2011-09-07 | 上海威嘉金属材料有限公司 | Scalping process for descaling inside and outside of non-ferrous metal pipe |
| CN102172649B (en) * | 2011-01-17 | 2013-03-20 | 上海威嘉金属材料有限公司 | Scalping process for descaling inside and outside of non-ferrous metal pipe |
| CN103157692B (en) * | 2011-12-09 | 2015-06-10 | 北京有色金属研究总院 | Preparation method for zinc-based alloy specially-shaped tube |
| CN103157692A (en) * | 2011-12-09 | 2013-06-19 | 北京有色金属研究总院 | Preparation method for zinc-based alloy specially-shaped tube |
| CN104174690A (en) * | 2014-07-21 | 2014-12-03 | 苏州贝思特金属制品有限公司 | Production process of sanitary stainless steel seamless pipe |
| CN104400352A (en) * | 2014-11-18 | 2015-03-11 | 广东龙丰精密铜管有限公司 | Method for processing semi-hard copper pipes |
| CN114472580A (en) * | 2021-12-20 | 2022-05-13 | 上海海亮铜业有限公司 | Preparation method of high-strength super-long cupronickel alloy capillary tube |
| CN114472580B (en) * | 2021-12-20 | 2024-04-02 | 上海海亮铜业有限公司 | Preparation method of high-strength ultra-long white copper alloy capillary |
| CN114850238A (en) * | 2022-04-27 | 2022-08-05 | 上海海亮铜业有限公司 | Preparation method of iron bronze pipe |
| CN114850238B (en) * | 2022-04-27 | 2023-12-05 | 上海海亮铜业有限公司 | Preparation method of iron bronze pipe |
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| Publication number | Publication date |
|---|---|
| CN100513059C (en) | 2009-07-15 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Longda Metal Material Co., Ltd. Assignor: Pu Yilong Contract fulfillment period: 2009.4.10 to 2025.4.9 Contract record no.: 2009320000599 Denomination of invention: Production method of B7 heat transfer copper alloy seamless pipe License type: Exclusive license Record date: 2009.4.17 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.10 TO 2025.4.9; CHANGE OF CONTRACT Name of requester: WUXI LONGDA METAL MATERIALS CO., LTD. Effective date: 20090417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20181212 |