CN104532055A - High nickel-content deformable aluminum white copper alloy material, and preparation method thereof - Google Patents
High nickel-content deformable aluminum white copper alloy material, and preparation method thereof Download PDFInfo
- Publication number
- CN104532055A CN104532055A CN201410676507.9A CN201410676507A CN104532055A CN 104532055 A CN104532055 A CN 104532055A CN 201410676507 A CN201410676507 A CN 201410676507A CN 104532055 A CN104532055 A CN 104532055A
- Authority
- CN
- China
- Prior art keywords
- alloy material
- aluminium
- preparation
- extrusion
- high nickel
- 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.)
- Pending
Links
Classifications
-
- 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
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
-
- 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
Abstract
The invention discloses a high nickel-content deformable aluminum white copper alloy material, and a preparation method thereof. The high nickel-content deformable aluminum white copper alloy material comprises following elements: 17.0 to 19.0% of Ni, 1.5 to 2.5% of Al, 0.8 to 1.2% of Fe, 0.4 to 0.6% of Cr, 0.4 to 0.6% of Si, and the balance Cu. The preparation method comprises following steps: materials are prepared based on the ratio of the elements; the raw materials are subjected to melting using a medium frequency furnace, wherein in the melting process, trace element Cr and Si are added in patterns of ferrochromium intermediate alloy and silicon iron intermediate alloy; and at last, extruded rods are obtained via hot extrusion. The high nickel-content deformable aluminum white copper alloy material is high in strength and is excellent in plasticity; is suitable for preparation of copper alloy structural members used for bearing heavy load; and is excellent in wear resistance, and is suitable for preparation of copper alloy structural members with high wear resistance.
Description
Technical field
The present invention relates to Alloy Materials technical field, particularly a kind of distortion aluminium cupronickel alloy material and preparation method thereof of high nickel content.
Background technology
Copper-nickel alloy take nickel as the copper alloy of main adding elements, its outstanding feature is excellent anti-corrosion performance, in addition it also has excellent mechanical property, conductivity, resistance toheat etc., is widely used in the fields such as shipbuilding, oil, chemical industry, electrical instrument, medicine equipment.What in White brass alloy, investigation and application was many has the simple oligomict copper alloys such as B10 and B30, has has also researched and developed the complicated White brass alloy such as Cu-Ni-Si, Cu-Ni-Sn and Cu-Ni-Al in addition for different application backgrounds.
Aluminium White brass alloy is a kind of typical precipitation strength type alloy, through certain art breading, and Ni
3al phase and NiAl phase precipitate dispersions are separated out, and alloy is strengthened.In Cu-Ni-Al alloy, add the trace alloying elements such as Fe, Cr, Si can form rich Cr phase, Fe-riched phase, Ni
3si, Ni
2the strengthening phases such as Si, make alloy be further strengthened.Improve the Ni constituent content in Cu-Ni-Al alloy, add more trace alloying element simultaneously, can carry and heavy alloyedly admittedly strengthen molten effect, separate out more precipitated phase, be the important channel of improving aluminium White brass alloy performance simultaneously.Pyroplastic deformation is also a kind of important way improving aluminium copper-nickel alloy performance, hot extrusion can realize the distortion of inductile material plasticity, good, the dimensional precision advantages of higher of extruded product surface quality because of its tool, becomes very important a kind of processing mode in the pyroplastic deformation of aluminium copper-nickel alloy.
Current domestic two kinds of common aluminium copper-nickel alloys are BAl6-1.5 and BAl13-3.The composition of BAl6-1.5 alloy is (mass percent, lower same): Ni:5.5 ~ 6.5%, Fe:0.5%, Mn:0.2%, strength of alloy, hardness representative value are respectively 650 ~ 750MPa, 210HB.The composition of BAl13-3 alloy is: Ni:12 ~ 15%, Fe:1%, Mn:0.5%, and strength of alloy, hardness representative value are respectively 900 ~ 950MPa, 260HB (Liu Ping, copper alloy and application thereof, Beijing, Chemical Industry Press, 2007).These two kinds of alloys due to nickel element content low, trace element less, alloy strengthening limited efficiency, causes alloy strength and hardness not high; For the aluminium copper-nickel alloy of high nickel content, a kind of casting Cu-Ni-Al alloy (Zhang Weiwen of high-strength wearable of domestic-developed, Xia Wei, Wen Liping, et al.Mechanical properties and tribological behavior of a cast heat-resisting copper based alloy.Journal of Central South University of Technology, 2002; 9 (4); 235-240), its Ni constituent content is 15 ~ 18%, and simultaneously also containing various trace elements, although it has the wear resistance more excellent than C95500 xantal, this alloy plasticity is poor, limits the application of alloy; In external MATINEL alloy, nickel content reaches 19%, main added elements is Al, trace element is containing alloying elements such as Mn, Fe, Nb, Cr, Si, alloy is after forge hot and ageing treatment, its tensile strength is 930MPa (Grylls R.J., Tuck C.D.C., Loretto M.H.Strengthening of a cupronickel alloy by an ordered L12 phase.Intermetallics, 1996,4:567-570).HIDURON191 alloy nickel content is 16%, in addition containing alloying elements such as Al, Fe, Mn, Cr, the representative value of alloy its tensile strength and yield strength after viscous deformation+thermal treatment is respectively 750MPa and 500MPa (High strength cupronickel for marine service.Anti-Corrosion Methods and Materials, 1989,36 (8): 4-12).These two kinds of alloy weak points are the complicated component of two kinds of alloys, limited strength, are mainly used in anti-corrosion occasion and manufacture high-strength structure part.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of distortion aluminium cupronickel alloy material of high nickel content is provided, this alloy material takes into account high strength, high-ductility and good wear performance, is particularly suitable for manufacturing requiring higher high-strength wearable copper alloy parts to corrosive nature.
Another object of the present invention is to the preparation method of the distortion aluminium cupronickel alloy material that a kind of above-mentioned high nickel content is provided.
Technical scheme of the present invention is: a kind of distortion aluminium cupronickel alloy material of high nickel content, containing following element in alloy material, each element and mass percent specific as follows:
Ni：17.0～19.0％，
Al：1.5～2.5％，
Fe：0.8～1.2％，
Cr：0.4～0.6％，
Si：0.4～0.6％，
Surplus is Cu.
The raw material of described alloy material comprises electrolytic copper, electrolytic nickel, fine aluminium, iron nail, ferrochrome and ferrosilicon;
Wherein, electrolytic copper contains Cu element, and electrolytic nickel contains Ni element, and fine aluminium contains Al element, and iron nail contains Fe element, and ferrochrome contains Fe element and Cr element, and ferrosilicon contains Fe element and Si element.
The preparation method of a kind of distortion aluminium cupronickel alloy material for high nickel content of the present invention, comprises the following steps:
(1) prepare burden: according to the proportioning of element each in alloy material, select and take corresponding raw material;
(2) melting: adopt middle frequency furnace to carry out melting to each raw material; In fusion process, micro-Cr and Si adds in the master alloy mode of ferrochrome and ferrosilicon respectively; After melting completes, obtain ingot casting;
(3) hot extrusion: the ingot casting obtained first is processed into extrusion ingot, then carries out hot extrusion molding; Before carrying out hot extrusion, extrusion ingot is incubated in advance at the temperature of 1000 ~ 1050 DEG C, and container is incubated in advance at the temperature of 450 ~ 500 DEG C; After hot extrusion, form extruded bars.
In described step (2), fusion process is specially: first add electrolytic copper, electrolytic nickel and iron nail, and cover with charcoal; After all melting, then add ferrochrome and ferrosilicon; Aluminium is added after fusing;
Adopt argon gas degasification after aluminium fusing, pour into a mould at the temperature of 1250 ~ 1280 DEG C after refining slagging-off, finally obtain ingot casting.
In described step (2), after obtaining ingot casting, carry out composition analysis to ingot casting, composition analysis adopts the method for x-ray fluorescence analysis; If composition analysis is qualified, enter step (3), if composition analysis is defective, return step (1).
The whether qualified basis for estimation of described composition analysis is whether the content of each element is within the scope of its corresponding mass percent, i.e. Ni:17.0 ~ 19.0%, Al:1.5 ~ 2.5%, Fe:0.8 ~ 1.2%, Cr:0.4 ~ 0.6%, in Si:0.4 ~ 0.6% scope.
In described step (3), extrusion ingot is cylindrical structural, and its diameter is 50mm, high 50mm; Before hot extrusion, the soaking time of extrusion ingot is 1 hour.
In described step (3), when carrying out hot extrusion, container is incubated 2 hours at the temperature of 450 ~ 500 DEG C, and extrusion nozzle is incubated 1 hour at the temperature of 350 ~ 450 DEG C, and extrusion ratio is 17.
The present invention, relative to prior art, has following beneficial effect:
1, the distortion aluminium cupronickel alloy material of this high nickel content has higher intensity and the plasticity of excellence simultaneously, is applicable to manufacturing the copper alloy structural part that needs bear heavy duty.Compared with existing Cu alloy material BAl13-3, tensile strength and the unit elongation of the distortion aluminium cupronickel alloy material of this high nickel content improve about 12% and about 196.2% respectively than BAl13-3 alloy.
2, the distortion aluminium cupronickel alloy material of this high nickel content also has good wear resisting property, is applicable to manufacturing requiring higher copper alloy structural part to wear resistance.Compared with existing Cu alloy material BAl13-3, the wear resistance of the distortion aluminium cupronickel alloy material of this high nickel content improves about 10% than BAl13-3 alloy.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
The distortion aluminium cupronickel alloy material of a kind of high nickel content of the present embodiment, obtains by the following method:
The first step, batching: formulated component is the alloy (mass percent) of Cu-17Ni-2.5Al-1.2Fe-0.4Cr-0.4Si, and the raw material adopted is specifically as shown in table 1,
Table 1
| Composition | Specification | Mass percent consumption |
| Electrolytic copper | Cu99.8 | 77.52％ |
| Electrolytic nickel | Ni99.99 | 17％ |
| Fine aluminium | Al99.8 | 2.5％ |
| Iron nail | 0.76％ | |
| Ferrochrome | Fe-59Cr | 0.69％ |
| Ferrosilicon | Fe-75Si | 0.53％ |
Second step, melting: in medium-frequency induction furnace melting.First add electrolytic copper, electrolytic nickel, iron nail, and cover with charcoal, after all melting, add ferrochrome, ferrosilicon, after fusing, add aluminium, adopt argon gas degasification, 1250 ~ 1280 DEG C of scope cast after refining slagging-off, obtain alloy cast ingot, carry out composition analysis.
3rd step, hot extrusion: after composition analysis is qualified, the ingot casting obtained is processed into the extrusion ingot of Φ 50mm × 50mm, extrusion ingot is incubated 1 hour at the temperature of 1050 DEG C, container is incubated 2 hours at the temperature of 450 DEG C, extrusion nozzle is incubated 1 hour at the temperature of 350 DEG C, setting extrusion ratio is 17, carries out hot-pressed, forms extruded bars.
After the extruded bars obtained is processed into test sample, carry out mechanical property (comprising tensile strength, unit elongation, hardness and wear volume) test and wear resisting property test, the condition of wear resisting property test is: on SRV wear testing machine, adopt Reciprocating Wear mode, under DRY SLIDING, loaded load is 150N, and wearing-in period is 30min.Test result is as shown in table 4.
Embodiment 2
The distortion aluminium cupronickel alloy material of a kind of high nickel content of the present embodiment, obtains by the following method:
The first step, batching: formulated component is the alloy (mass percent) of Cu-18Ni-2Al-1Fe-0.5Cr-0.5Si, and the raw material adopted is specifically as shown in table 2,
Table 2
| Composition | Specification | Mass percent consumption |
| Electrolytic copper | Cu99.8 | 77.51％ |
| Electrolytic nickel | Ni99.99 | 18％ |
| Fine aluminium | Al99.8 | 2％ |
| Iron nail | 0.97％ | |
| Ferrochrome | Fe-59Cr | 0.85％ |
| Ferrosilicon | Fe-75Si | 0.67％ |
Second step, melting: in medium-frequency induction furnace melting.First add electrolytic copper, electrolytic nickel, iron nail, and cover with charcoal, after all melting, add ferrochrome, ferrosilicon, after fusing, add aluminium, adopt argon gas degasification, 1250 ~ 1280 DEG C of scope cast after refining slagging-off, obtain alloy cast ingot, carry out composition analysis.
3rd step, hot extrusion: after composition analysis is qualified, the ingot casting obtained is processed into the extrusion ingot of Φ 50mm × 50mm, extrusion ingot is incubated 1 hour at the temperature of 1025 DEG C, container is incubated 2 hours at the temperature of 475 DEG C, extrusion nozzle is incubated 1 hour at the temperature of 400 DEG C, setting extrusion ratio is 17, carries out hot-pressed, forms extruded bars.
After the extruded bars obtained is processed into test sample, carry out mechanical property (comprising tensile strength, unit elongation, hardness and wear volume) test and wear resisting property test, the condition of wear resisting property test is: on SRV wear testing machine, adopt Reciprocating Wear mode, under DRY SLIDING, loaded load is 150N, and wearing-in period is 30min.Test result is as shown in table 4.
Embodiment 3
The distortion aluminium cupronickel alloy material of a kind of high nickel content of the present embodiment, obtains by the following method:
The first step, batching: formulated component is the alloy (mass percent) of Cu-19Ni-1.5Al-0.8Fe-0.6Cr-0.6Si, and the raw material adopted is specifically as shown in table 3,
Table 3
| Composition | Specification | Mass percent consumption |
| Electrolytic copper | Cu99.8 | 76.94％ |
| Electrolytic nickel | Ni99.99 | 19％ |
| Fine aluminium | Al99.8 | 1.5％ |
| Iron nail | 0.76％ | |
| Ferrochrome | Fe-59Cr | 1％ |
| Ferrosilicon | Fe-75Si | 0.8％ |
Second step, melting: in medium-frequency induction furnace melting.First add electrolytic copper, electrolytic nickel, iron nail, and cover with charcoal, after all melting, add ferrochrome, ferrosilicon, after fusing, add aluminium, adopt argon gas degasification, 1250 ~ 1280 DEG C of scope cast after refining slagging-off, obtain alloy cast ingot, carry out composition analysis.
3rd step, hot extrusion: after composition analysis is qualified, the ingot casting obtained is processed into the extrusion ingot of Φ 50mm × 50mm, extrusion ingot is incubated 1 hour at the temperature of 1000 DEG C, container is incubated 2 hours at the temperature of 500 DEG C, extrusion nozzle is incubated 1 hour at the temperature of 450 DEG C, setting extrusion ratio is 17, carries out hot-pressed, forms extruded bars.
After the extruded bars obtained is processed into test sample, carry out mechanical property (comprising tensile strength, unit elongation, hardness and wear volume) test and wear resisting property test, the condition of wear resisting property test is: on SRV wear testing machine, adopt Reciprocating Wear mode, under DRY SLIDING, loaded load is 150N, and wearing-in period is 30min.Test result is as shown in table 4.
Comparative example
In this comparative example, adopt the preparation method identical with embodiment 2 to prepare existing BAl13-3 alloy, and mechanical property and wear resisting property test are carried out to BAl13-3 alloy.Test result is as shown in table 4.
Table 4
As mentioned above, just can realize the present invention preferably, above-described embodiment is only preferred embodiment of the present invention, is not used for limiting practical range of the present invention; Namely all equalizations done according to content of the present invention change and modify, all by the claims in the present invention scope required for protection is contained.
Claims (8)
1. a distortion aluminium cupronickel alloy material for high nickel content, is characterized in that, containing following element in alloy material, each element and mass percent specific as follows:
Ni：17.0～19.0％，
Al：1.5～2.5％，
Fe：0.8～1.2％，
Cr：0.4～0.6％，
Si：0.4～0.6％，
Surplus is Cu.
2. the distortion aluminium cupronickel alloy material of a kind of high nickel content according to claim 1, it is characterized in that, the raw material of described alloy material comprises electrolytic copper, electrolytic nickel, fine aluminium, iron nail, ferrochrome and ferrosilicon;
Wherein, electrolytic copper contains Cu element, and electrolytic nickel contains Ni element, and fine aluminium contains Al element, and iron nail contains Fe element, and ferrochrome contains Fe element and Cr element, and ferrosilicon contains Fe element and Si element.
3., for the preparation method of the distortion aluminium cupronickel alloy material of high nickel content described in claim 2, it is characterized in that, comprise the following steps:
(1) prepare burden: according to the proportioning of element each in alloy material, select and take corresponding raw material;
(2) melting: adopt middle frequency furnace to carry out melting to each raw material; In fusion process, micro-Cr and Si adds in the master alloy mode of ferrochrome and ferrosilicon respectively; After melting completes, obtain ingot casting;
(3) hot extrusion: the ingot casting obtained first is processed into extrusion ingot, then carries out hot extrusion molding; Before carrying out hot extrusion, extrusion ingot is incubated in advance at the temperature of 1000 ~ 1050 DEG C, and container is incubated in advance at the temperature of 450 ~ 500 DEG C; After hot extrusion, form extruded bars.
4. the preparation method of the distortion aluminium cupronickel alloy material of high nickel content according to claim 3, it is characterized in that, in described step (2), fusion process is specially: first add electrolytic copper, electrolytic nickel and iron nail, and cover with charcoal; After all melting, then add ferrochrome and ferrosilicon; Aluminium is added after fusing;
Adopt argon gas degasification after aluminium fusing, pour into a mould at the temperature of 1250 ~ 1280 DEG C after refining slagging-off, finally obtain ingot casting.
5. the preparation method of the distortion aluminium cupronickel alloy material of high nickel content according to claim 3, is characterized in that, in described step (2), after obtaining ingot casting, carry out composition analysis to ingot casting, and composition analysis adopts the method for x-ray fluorescence analysis; If composition analysis is qualified, enter step (3), if composition analysis is defective, return step (1).
6. the preparation method of the distortion aluminium cupronickel alloy material of high nickel content according to claim 5, is characterized in that, the whether qualified basis for estimation of described composition analysis is whether the content of each element is within the scope of its corresponding mass percent.
7. the preparation method of the distortion aluminium cupronickel alloy material of high nickel content according to claim 3, it is characterized in that, in described step (3), extrusion ingot is cylindrical structural, and its diameter is 50mm, high 50mm; Before hot extrusion, the soaking time of extrusion ingot is 1 hour.
8. the preparation method of the distortion aluminium cupronickel alloy material of high nickel content according to claim 3, it is characterized in that, in described step (3), when carrying out hot extrusion, container is incubated 2 hours at the temperature of 450 ~ 500 DEG C, extrusion nozzle is incubated 1 hour at the temperature of 350 ~ 450 DEG C, and extrusion ratio is 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676507.9A CN104532055A (en) | 2014-11-21 | 2014-11-21 | High nickel-content deformable aluminum white copper alloy material, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676507.9A CN104532055A (en) | 2014-11-21 | 2014-11-21 | High nickel-content deformable aluminum white copper alloy material, and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104532055A true CN104532055A (en) | 2015-04-22 |
Family
ID=52847672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676507.9A Pending CN104532055A (en) | 2014-11-21 | 2014-11-21 | High nickel-content deformable aluminum white copper alloy material, and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104532055A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886862A (en) * | 2016-06-07 | 2016-08-24 | 太仓市纯杰金属制品有限公司 | Anti-corrosion aluminum-zinc alloy material |
| CN106065444A (en) * | 2016-07-29 | 2016-11-02 | 柳州豪祥特科技有限公司 | Powder metallurgic method prepares the method for corronil material |
| CN114908271A (en) * | 2022-05-27 | 2022-08-16 | 中国科学院兰州化学物理研究所 | High-temperature-resistant copper alloy-based solid lubricating composite material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1520721A (en) * | 1976-02-06 | 1978-08-09 | Olin Corp | |
| JPS63266033A (en) * | 1987-04-23 | 1988-11-02 | Mitsubishi Electric Corp | Copper alloy |
| CN1223306A (en) * | 1998-01-14 | 1999-07-21 | 浙江大学 | High-strength high softening temp. copper based elastic material |
| CN103328665A (en) * | 2010-12-13 | 2013-09-25 | 日本精线株式会社 | Copper alloy and method for producing copper alloy |
-
2014
- 2014-11-21 CN CN201410676507.9A patent/CN104532055A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1520721A (en) * | 1976-02-06 | 1978-08-09 | Olin Corp | |
| JPS63266033A (en) * | 1987-04-23 | 1988-11-02 | Mitsubishi Electric Corp | Copper alloy |
| CN1223306A (en) * | 1998-01-14 | 1999-07-21 | 浙江大学 | High-strength high softening temp. copper based elastic material |
| CN103328665A (en) * | 2010-12-13 | 2013-09-25 | 日本精线株式会社 | Copper alloy and method for producing copper alloy |
Non-Patent Citations (1)
| Title |
|---|
| 谭伟: "热挤压变形高强耐磨Cu-17Ni-3Al-X合金的组织性能研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886862A (en) * | 2016-06-07 | 2016-08-24 | 太仓市纯杰金属制品有限公司 | Anti-corrosion aluminum-zinc alloy material |
| CN106065444A (en) * | 2016-07-29 | 2016-11-02 | 柳州豪祥特科技有限公司 | Powder metallurgic method prepares the method for corronil material |
| CN106065444B (en) * | 2016-07-29 | 2018-10-02 | 柳州豪祥特科技有限公司 | The method that powder metallurgic method prepares corronil material |
| CN114908271A (en) * | 2022-05-27 | 2022-08-16 | 中国科学院兰州化学物理研究所 | High-temperature-resistant copper alloy-based solid lubricating composite material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102527724B (en) | Manufacturing method of alloy tubular product | |
| CN102747256A (en) | Aluminum-silicon based aluminum section and preparation technology thereof | |
| CN102828063A (en) | Novel lead-free environment-friendly high-strength wear-resistant copper-base alloy bar and preparation method thereof | |
| CN107974637B (en) | A kind of hot die steel and preparation method thereof | |
| CN105420561A (en) | High-strength die-cast aluminum alloy | |
| CN101586200B (en) | Casting copper-chromium alloy and preparation method thereof | |
| CN109136637A (en) | A kind of titanium microalloying tin bronze alloys bar and preparation method thereof | |
| CN104911413A (en) | Aluminum silicate composition alloy and production method therof | |
| CN106148778A (en) | Aluminium diecasting alloy and preparation method thereof | |
| CN104532055A (en) | High nickel-content deformable aluminum white copper alloy material, and preparation method thereof | |
| CN103074515A (en) | Novel high-conductivity free-cutting selenium copper alloy material and preparation method thereof | |
| JP2013524023A (en) | New lead-free brass alloy | |
| CN104946925A (en) | Treatment technology of copper aluminum alloy material for bus duct | |
| CN103484713B (en) | High-strength wear-resistant complex complex brass alloy extrudes bar and manufacture craft thereof | |
| CN102418002A (en) | High-performance and low-tin bronze belt and production method thereof | |
| CN103556006A (en) | Aluminum alloy and manufacturing method thereof | |
| CN103509966B (en) | A kind of alloy material and manufacture method thereof being applicable to aerospace field | |
| CN105154715A (en) | High-performance copper alloy material and preparation method thereof | |
| CN102634689A (en) | Rare earth copper alloy rod for petrochemical engineering equipment and preparation method of rare earth copper alloy rod | |
| CN105463221A (en) | Technical method for improving performance of round aluminum rod by adding B and RE elements | |
| CN107287482A (en) | A kind of preparation method of aluminium alloy | |
| CN113774255A (en) | GH4169 high-temperature alloy based on cluster type method for determining component synergistic change relationship and preparation method | |
| CN107385289A (en) | The high tough corrosion-resistant hypoeutectic Al Si systems cast aluminium alloy gold and preparation method of a kind of Zr and Sr combined microalloyings | |
| KR100946721B1 (en) | High strength copper alloy and casting thereof | |
| CN106167863A (en) | A kind of low beryllium alumin(i)um alloy and preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
|
| RJ01 | Rejection of invention patent application after publication |