CN1804072A - Method for manufacturing copper alloys - Google Patents
Method for manufacturing copper alloys Download PDFInfo
- Publication number
- CN1804072A CN1804072A CNA2005101215730A CN200510121573A CN1804072A CN 1804072 A CN1804072 A CN 1804072A CN A2005101215730 A CNA2005101215730 A CN A2005101215730A CN 200510121573 A CN200510121573 A CN 200510121573A CN 1804072 A CN1804072 A CN 1804072A
- Authority
- CN
- China
- Prior art keywords
- copper
- chromium
- treat
- casting
- zirconium
- 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.)
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention relates to a method for manufacturing copper based precipitation hardenable alloys, such as copper-chromium (CuCr), copper-chromium-zirconium (CuCrZr) and copper-zirconium (CuZr), wherein the method contains at least the steps: a) an elongated piece made of the desired alloy and having an essentially circular, rectangular or ring-like cross-section is cast by continuous casting, b) the cast piece is drawn, and c) at least one aging treatment is carried out for the final product.
Description
Technical field
The present invention relates to the manufactured copper alloy, the method for the copper base alloy of precipitation-hardenable especially, the hot extrusion of copper alloy that kept away rabbit in this method.
Background technology
The manufacturing of precipitation hardening alloy needs alloying element is joined operation stage in the sosoloid.General this combines with rapid quenching by independent solution annealing thermal treatment or with hot-work such as hot extrusion or hot rolling to be realized.According to this technology of having researched and developed, obtain sosoloid by control curing and with postcooling.
The excellent traditional method as copper-chromium (CuCr), copper-chromium-zirconium (CuCrZr) and copper-zirconium (CuZr) of copper base alloy of making precipitation-hardenable is: cast billet earlier, handle billet by hot extrusion then.U.S. Pat 4,421 has been described this processing in 570, is used for handling the material that uses in the method for making the continuous casting model.Typical conventional cast billet must be proofreaied and correct the defective that its surface exists by machining or other method for trimming before pushing.Further, depend on the billet casting condition, copper alloying element, chromium and/or zirconium may begin to be precipitated out from sosoloid.Therefore, the temperature that billet is heated to setting before clamp-oning billet in the water is very necessary.After extruding with bar drawing to given size, timeliness also further is drawn to final diameter (if desired).In some cases, bar drawing to given size can be configured as element then before timeliness.
Summary of the invention
The method that the objective of the invention is to overcome some shortcoming of prior art and obtain the alloy of improved manufactured copper base precipitation-hardenable, manufacture method as copper-chromium (CuCr), copper-chromium-zirconium (CuCrZr) and copper-zirconium (CuZr), this method obtains long foundry goods by using continuous casting, bar for example, rather than the casting billet, thereby shortened manufacturing processed.Essential characteristic of the present invention is documented in the appended claims.
The method according to this invention, by the alloy of continuous casting with copper base precipitation-hardenable, directly be cast as elongated foundry goods as copper-chromium (CuCr), copper-chromium-zirconium (CuCrZr) and copper-chromium (CuZr), this foundry goods advantageously has circle, rectangle or cyclic cross section substantially, preferably advantageously has the rod that external diameter is 8mm to 50mm.Foundry goods is drawn to predetermined size.With the product of this drawing under certain selectable mode further timeliness to obtain the finished product.The concrete grammar of timeliness for example is: solution annealing, direct forming are element or further are drawn into filament timeliness thermal treatment subsequently.
The alloy of copper base precipitation-hardenable to be made in the method for the invention comprises the chromium of 0.1～1.5 weight % and/or the zirconium of 0.01～0.25 weight %, the copper of surplus and common impurity.
In the method for the invention, continuous casting by level, vertically upward or vertically downward or in addition between level and vertical between certain direction on carry out.In order to describe technology of the present invention, term " continuous casting " is the casting that is used for describing the operate continuously of at least one elongate articles, this elongate articles advantageously has circle, rectangle or cyclic cross section substantially, and its thickness or external diameter be maximum for the further cold working of material.According to final dimensional requirement, can also cast other size or even other shape.When the continuous casting in use the inventive method, the very long foundry goods that casting obtains, its weight is up to 5 tons, and by comparison, the typical weight of the casting billet that preparation is pushed in the prior art is 160kg.Do not need to resemble pressing steps of the prior art when adopting method of the present invention, and avoided solution treatment at least in one embodiment.In addition, because foundry goods has the shape with elongate articles, promptly than casting billet more near the final size of foundry goods, the drawing process of foundry goods also has been shortened.
When using method of the present invention,, alloying element chromium and/or zirconium are remained in the oversaturated sosoloid in the continuous casting stage.This sosoloid passes mould by cast copper alloy and realizes, this mould is connected with water cooler, can make copper base alloy with 23 ℃/s～70 ℃/s speed fast setting.Solidification process further is reduced to temperature and is lower than the required temperature of copper base alloy generation precipitation.
The method according to this invention after the casting step, with the foundry goods of copper base alloy, preferably with bar-shaped, is drawn to predetermined size.According to the present invention, further handle the drawing product by selectable each mode and obtain the finished product: a kind of embodiment is to make the solution annealing of drawing product, another embodiment is to be element with the drawing casting forming directly, as the cold-heading resistance welding electrode as the finished product, perhaps also having another embodiment is also further to be drawn into the finished product in 2～3 hours 440～470 ℃ of following timeliness, as filament.If desired, all embodiments are subsequently all through overaging thermal treatment.
According to one embodiment of the invention, with regard to chromiumcopper, under 980～1000 ℃, carry out solution annealing 5～30 minutes, with regard to copper zirconium alloy, carried out solution annealing 10～30 minutes so that the drawing product recrystallize of predetermined size at 900～925 ℃.The application target that depends on the finished product is that element further is drawn into new desired size as the finished product or with annealing product with the annealing product direct forming.This product that will have a new desired size further is configured as element as the finished product or will have the product timeliness of new desired size before being configured as the element of the finished product.
Description of drawings
With reference to the accompanying drawings the present invention is described below in greater detail, wherein
Fig. 1 shows a preferred embodiment of the present invention in the mode of procedure of processing schema,
Fig. 2 shows another preferred embodiment of the present invention in procedure of processing schema mode,
Fig. 3 shows another preferred embodiment of the present invention in procedure of processing schema mode.
Embodiment
According to Fig. 1, chromiumcopper is melted in smelting furnace 1, melt flows into holding furnace 2.After coming out from holding furnace 2, melt is sent into continuous casting machine 3, operate this continuous casting machine and make casting direction substantially vertically upward so that holding furnace 2 is positioned at the below of continuous casting machine 3, and melt is upwards sucked the mouth of pipe of continuous casting machine 3.In continuous casting machine 3, use the heat-eliminating medium already solidified melt, make will the solidified melt circulation and make solid foundry goods 4.
The foundry goods 4 that comes out from continuous casting machine 3 is bar.Again this bar is sent into cold drawing bench 5, there bar drawing is become the finished product 6, as filament with desired size.If desired, depend on the purposes of the finished product 6, under 440～470 ℃, carry out 2～3 hours timeliness 7.
In the embodiment of Fig. 2, copper zirconium alloy is melted in smelting furnace 11, and melt enters holding furnace 12.After coming out from holding furnace 12, melt is sent into continuous casting machine 13, and operation continuous casting machine 13 makes casting direction substantially vertically downward so that holding furnace 12 is positioned at the top of continuous casting machine 13, melt is sent into downwards in the mould of continuous casting machine 13.In continuous casting machine 13, use the heat-eliminating medium already solidified melt, make will the solidified melt circulation and make solid foundry goods 14.
The foundry goods 14 that comes out from continuous casting machine 13 is bar.Again this bar is sent into cold drawing bench 15, there required size is extremely further handled in bar drawing.To send into from the drawing bar 16 of cold drawing bench 15 and carry out the solution annealing processing in the stove 17.Annealing bar 18 from stove 17 can for example cut into it the finished product of the set goal product 19 as manufacture method of the present invention in addition alternatively, if desired, and with target product 19 timeliness 24.
The method according to this invention, another optional mode of the bar 18 after mechanical refining is handled is the final size that bar 18 is drawn to expectation in another cold drawing bench 23.Further optional drawing product 20 is for example cut into target product 21, if desired, with its timeliness 26.Perhaps, drawing product 20 will carry out timeliness 25 before being configured as desired destination product 22, the form that product 21 is kept as silk.
In the embodiment of Fig. 3, copper-chromium-zirconium alloy is melted in smelting furnace 31, melt is sent into holding furnace 32.Send in the continuous casting machine 33 from the melt of holding furnace 32, operation continuous casting machine 33 make the casting direction basic horizontal in case holding furnace 32 can be basically with continuous casting machine 33 on same horizontal plane, and melt is sent in the mould of continuous casting machine 33.In continuous casting machine 33, melt solidifies by heat-eliminating medium, makes to treat the circulation of solidified melt in the casting machine and make solid foundry goods 34.
According to the present invention, though only be a kind of alloy to what mention in Fig. 1,2 and 3 the description, this alloy also can be by other alloy replacing in the embodiment that the present invention discussed, and does not weaken the value of embodiment of the present invention.
Claims (9)
1, the alloy of copper base precipitation-hardenable, copper-chromium (CuCr) for example, the manufacture method of copper-chromium-zirconium (CuCrZr) and copper-chromium (CuZr), wherein this method comprises step at least:
A) by casting the elongate articles of casting, rectangle substantially circular or ring shaped cross-section continuously by having of making of the alloy of described expectation,
B) with the foundry goods drawing and
C) the finished product are carried out at least ageing treatment.
2, before ageing treatment, carry out solution annealing according to the process of claim 1 wherein.
3, treat in the castingprocesses that according to the process of claim 1 wherein to make the solidified melt substantially vertically sends into casting machine.
4,, wherein make and treat that in castingprocesses solidified melt perpendicular up sends into casting machine according to the method for claim 3.
5,, wherein make and treat that in castingprocesses solidified melt perpendicular down sends into casting machine according to the method for claim 3.
6, treat that according to the process of claim 1 wherein the solidified melt essentially horizontally sends into casting machine in castingprocesses.
7,, treat that wherein casting alloy contains the chromium of 0.1～1.5% weight according to the method for aforementioned each claim.
8, according to each method in the aforementioned claim 1～6, treat that wherein casting alloy contains the zirconium of 0.01～0.25% weight.
9, according to each method in the preceding claim 1～6, treat that wherein casting alloy contains the chromium of 0.1～1.5% weight and the zirconium of 0.01～0.25% weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/971,932 | 2004-10-22 | ||
| US10/971,932 US20060086437A1 (en) | 2004-10-22 | 2004-10-22 | Method for manufacturing copper alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1804072A true CN1804072A (en) | 2006-07-19 |
Family
ID=35788614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101215730A Pending CN1804072A (en) | 2004-10-22 | 2005-10-21 | Method for manufacturing copper alloys |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060086437A1 (en) |
| EP (1) | EP1649950A3 (en) |
| JP (1) | JP2006138015A (en) |
| CN (1) | CN1804072A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994675A (en) * | 2012-12-11 | 2013-03-27 | 包钢集团设计研究院（有限公司） | Chromium zirconium silver copper tubular tuyere |
| CN103827330A (en) * | 2011-09-29 | 2014-05-28 | 日本碍子株式会社 | Copper alloy wire rod and method for producing same |
| CN107076205A (en) * | 2014-09-03 | 2017-08-18 | 菲特尔莫古威斯巴登有限公司 | Sliding bearing or one part, its manufacture method and CuCrZr alloys as material for sliding bearing application |
| CN107737890A (en) * | 2017-09-20 | 2018-02-27 | 中天合金技术有限公司 | A kind of preparation method of radio frequency coaxial-cable oxygen-free copper pipe |
| CN109175283A (en) * | 2018-10-29 | 2019-01-11 | 福建紫金铜业有限公司 | A kind of heat pipe material pipe processing technique |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4721067B2 (en) * | 2007-07-12 | 2011-07-13 | 日立電線株式会社 | Manufacturing method of copper alloy material for electric and electronic parts |
| EP2529860A4 (en) | 2010-01-26 | 2017-02-22 | Mitsubishi Materials Corporation | Process for producing copper alloy wire containing active element |
| EP2866962B1 (en) | 2012-06-29 | 2017-01-18 | Le Bronze Industriel | Crucible for a machine for continuously casting a bar or a coil of a metal alloy |
| CN103409651B (en) * | 2013-07-18 | 2015-04-29 | 中国船舶重工集团公司第七二五研究所 | Method for eliminating generation of cold shots or pores on surface of copper-chromium-zirconium alloy rod during vacuum smelting |
| JP6030186B1 (en) | 2015-05-13 | 2016-11-24 | 株式会社ダイヘン | Copper alloy powder, manufacturing method of layered object, and layered object |
| CN105088001B (en) * | 2015-09-02 | 2017-05-10 | 河南科技大学 | High-strength and high-conductivity copper alloy for contact line and preparation method of high-strength and high-conductivity copper alloy |
| CN111363948B (en) * | 2020-04-24 | 2021-11-09 | 浙江大学 | Efficient short-process preparation method of high-strength high-conductivity copper alloy |
| CN114713650A (en) * | 2022-03-31 | 2022-07-08 | 江阴电工合金股份有限公司 | Production process and device of high-ductility and high-softening-resistance copper-chromium-zirconium contact line |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6749699B2 (en) * | 2000-08-09 | 2004-06-15 | Olin Corporation | Silver containing copper alloy |
| DE10206597A1 (en) * | 2002-02-15 | 2003-08-28 | Km Europa Metal Ag | Hardenable copper alloy used as a material for blocks for the sides of strip casting mills contains alloying additions of cobalt, beryllium, zirconium, and magnesium and/or iron |
-
2004
- 2004-10-22 US US10/971,932 patent/US20060086437A1/en not_active Abandoned
-
2005
- 2005-10-14 EP EP05022523A patent/EP1649950A3/en not_active Withdrawn
- 2005-10-21 CN CNA2005101215730A patent/CN1804072A/en active Pending
- 2005-10-24 JP JP2005308298A patent/JP2006138015A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103827330A (en) * | 2011-09-29 | 2014-05-28 | 日本碍子株式会社 | Copper alloy wire rod and method for producing same |
| CN103827330B (en) * | 2011-09-29 | 2016-06-08 | 日本碍子株式会社 | Copper alloy wire and manufacture method thereof |
| US9754703B2 (en) | 2011-09-29 | 2017-09-05 | Ngk Insulators, Ltd. | Copper alloy wire rod and method for manufacturing the same |
| CN102994675A (en) * | 2012-12-11 | 2013-03-27 | 包钢集团设计研究院（有限公司） | Chromium zirconium silver copper tubular tuyere |
| CN107076205A (en) * | 2014-09-03 | 2017-08-18 | 菲特尔莫古威斯巴登有限公司 | Sliding bearing or one part, its manufacture method and CuCrZr alloys as material for sliding bearing application |
| CN107737890A (en) * | 2017-09-20 | 2018-02-27 | 中天合金技术有限公司 | A kind of preparation method of radio frequency coaxial-cable oxygen-free copper pipe |
| CN109175283A (en) * | 2018-10-29 | 2019-01-11 | 福建紫金铜业有限公司 | A kind of heat pipe material pipe processing technique |
| CN109175283B (en) * | 2018-10-29 | 2020-05-01 | 福建紫金铜业有限公司 | Heat pipe material pipe processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1649950A2 (en) | 2006-04-26 |
| US20060086437A1 (en) | 2006-04-27 |
| EP1649950A3 (en) | 2008-02-27 |
| JP2006138015A (en) | 2006-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20060719 |