CN109338147A - A kind of preparation method of platinum-silver alloys ultra-fine wire - Google Patents
A kind of preparation method of platinum-silver alloys ultra-fine wire Download PDFInfo
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- CN109338147A CN109338147A CN201811391150.4A CN201811391150A CN109338147A CN 109338147 A CN109338147 A CN 109338147A CN 201811391150 A CN201811391150 A CN 201811391150A CN 109338147 A CN109338147 A CN 109338147A
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- 229910001316 Ag alloy Inorganic materials 0.000 title claims abstract description 34
- GNLCAVBZUNZENF-UHFFFAOYSA-N platinum silver Chemical compound [Ag].[Ag].[Ag].[Pt] GNLCAVBZUNZENF-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 23
- 238000000137 annealing Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 229910052709 silver Inorganic materials 0.000 claims abstract description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003723 Smelting Methods 0.000 claims abstract description 12
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 12
- 239000004332 silver Substances 0.000 claims abstract description 12
- 238000005491 wire drawing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 230000008023 solidification Effects 0.000 claims abstract description 7
- 238000005097 cold rolling Methods 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000005674 electromagnetic induction Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 description 6
- 238000005204 segregation Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/04—Alloys based on a platinum group metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/56—Elongation control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- 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
- C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/10—Compression, e.g. longitudinal compression
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to Alloy Processing fields, disclose a kind of preparation method of platinum-silver alloys ultra-fine wire.This method utilizes Vacuum Magnetic induction melting furnace and bottom leaky crucible for smelting platinum, silver material, cold rolling, wire drawing process are directly carried out by the ingot casting that suction pouring quick solidification apparatus obtains, it can obtain φ 0.01mm~φ 0.1mm platinum-silver alloys silk material, wherein cold rolled annealed processing progress when deflection reaches 10%~20%, 700~1000 DEG C of annealing temperature, 30~50min of annealing time；Wire drawing and annealing processing progress when deflection reaches 20%~50%, 600~800 DEG C of annealing temperature, 5~20min of annealing time.The preparation method is easy to operate, gained platinum-silver alloys silk material performance is stable, is conducive to industrialized production.
Description
Technical field
The invention belongs to Alloy Processing field, in particular to a kind of preparation method of platinum-silver alloys ultra-fine wire.
Background technique
Platinum-silver alloys is excellent noble metal elastic material, has high tensile strength, high resiliency, low resistance, corrosion-resistant
Property and oxidation resistant, play an important role in fields such as aerospaces.The melting and processing of platinum-silver alloys all have certain
Difficulty, main cause have: 1) difference in specific gravity of Pt and Ag is larger, and conventional method of smelting is easy to form gravity segregation in casting.2)
The fusing point of Pt is much larger than the fusing point of Ag, and smelting time is too long to make silver-colored serious volatilization, influences the ingredient balance of platinum-silver alloys.3) platinum
The structural transformation of silver alloy cooling procedure is complicated, is related to the processes such as peritectic reaction, eutectoid reaction, ordering transition, it is necessary to guarantee
It is quickly cooled down under the premise of ingredient is uniform, reduces the generation of various segregation phenomenas.4) Ag has very strong inspiratory phenomenon, therefore must
It must guarantee vacuum degree high in fusion process, as far as possible shortening smelting time.5) platinum-silver alloys ingot casting is there are more segregation tissue,
Suitable annealing process is needed to guarantee the progress of rolling.
The preparation of platinum-silver alloys silk material at present takes vacuum induction melting furnace melting more, water cooled copper mould casting, to ingot casting into
It is processed after the processing of row homogenizing annealing.The ingot structure segregation that the technique obtains is serious, and tissue defects are more, and lumber recovery is low,
It can not stablize and prepare platinum-silver alloys silk material.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of platinum-silver alloys ultra-fine wire, specific technical solution is as follows:
A kind of preparation method of platinum-silver alloys ultra-fine wire, comprising the following steps:
(1) crucible for smelting platinum, silver material are leaked using vacuum electromagnetic induction melting furnace and bottom, it is then quick using suction pouring
Coagulation system molding, obtains ingot casting, is the platinum-silver alloys ingot casting that silver content is 5wt%~30wt%；Gained ingot structure without
Obvious coarse column crystal, ingredient is uniform, is tiny equiaxed grain structure；Before melting, working chamber's vacuum degree should be greater than 1 × 10- 4MPa；The suction pouring quick solidification apparatus contains water cooled copper mould, and the diameter of water cooled copper mould should be controlled in 10mm-20mm range
Interior, the pressure difference for inhaling casting should be controlled in 1Mpa-10Mpa.
(2) by platinum-silver alloys ingot rolling obtained by step (1) at the bar of φ 6mm~φ 8mm, rolling reduction reaches
When 10%~20%, made annealing treatment under 700 DEG C~1000 DEG C, the reducibility gas protection such as inert gas or hydrogen 30min~
50min；Wherein rolling is cold rolling, and pass deformation is 2%~5%；
(3) by bar wire drawing obtained by step (2) to φ 0.01mm~φ 0.1mm, when deflection reaches 20%~50%,
600 DEG C~800 DEG C, reducibility gas protection is lower makes annealing treatment 5min~20min for inert gas or hydrogen etc..
Specific embodiment
The present invention provides a kind of preparation method of platinum-silver alloys ultra-fine wire, below with reference to embodiment to the present invention do into
One step explanation.
Embodiment 1
Platinum-silver alloys ultra-fine wire is prepared as steps described below:
(1) according to Pt 95%, 5% ingredient of Ag, material purity is greater than 99.99%, molten using vacuum induction for platinum, silver material
Crucible for smelting is leaked at furnace and bottom, and working chamber is evacuated to 10 before melting-4Platinum, silver material are placed in melting in working chamber by Pa；
Melt obtained by melting is inhaled into casting in φ 12mm water cooled copper mould using suction pouring quick solidification apparatus, the pressure difference for inhaling casting is
10Mpa obtains platinum-silver alloys ingot casting；
(2) platinum-silver alloys ingot casting cold rolling obtained by step (1) is made to the bar of φ 6mm, when rolling reduction reaches 20%,
30min is made annealing treatment under 1000 DEG C, hydrogen shield；
(3) by platinum-silver alloys bar wire drawing obtained by step (2) to φ 0.01mm, when wire drawing deflection reaches 20%, 800
DEG C, make annealing treatment 10min under hydrogen shield.
Embodiment 2
Medical platinum-silver alloys ultra-fine wire is prepared as steps described below:
(1) platinum, silver material are according to Pt 85%, 15% ingredient of Ag, and material purity is greater than 99.99%, using vacuum induction
Crucible for smelting is leaked at smelting furnace and bottom, and working chamber is evacuated to 10 before melting-4Platinum, silver material are placed in working chamber and melt by Pa
Refining；Melt obtained by melting is inhaled into casting in φ 15mm water cooled copper mould using suction pouring quick solidification apparatus, inhales the pressure difference of casting
For 10Mpa, platinum-silver alloys ingot casting is obtained；
(2) platinum-silver alloys ingot casting cold rolling obtained by step (1) is made to the bar of φ 7mm, when rolling reduction reaches 15%,
40min is made annealing treatment under 900 DEG C, hydrogen shield；
(3) by platinum-silver alloys bar wire drawing obtained by step (2) to φ 0.05mm, when wire drawing deflection reaches 15%, 750
DEG C, make annealing treatment 15min under hydrogen shield
Embodiment 3
Medical platinum-silver alloys ultra-fine wire is prepared as steps described below:
(1) platinum, silver material are according to Pt 75%, 25% ingredient of Ag, and material purity is greater than 99.99%, using vacuum induction
Crucible for smelting is leaked at smelting furnace and bottom, and working chamber is evacuated to 10 before melting-4Platinum, silver material are placed in working chamber and melt by Pa
Refining；Melt obtained by melting is inhaled into casting in φ 18mm water cooled copper mould using suction pouring quick solidification apparatus, inhales the pressure difference of casting
For 10Mpa, platinum-silver alloys ingot casting is obtained；
(2) platinum-silver alloys ingot casting cold rolling obtained by step (1) is made to the bar of φ 8mm, when rolling reduction reaches 10%,
50min is made annealing treatment under 800 DEG C, hydrogen shield；
(3) by platinum-silver alloys bar wire drawing obtained by step (2) to φ 0.1mm, when wire drawing deflection reaches 5%, 700
DEG C, make annealing treatment 20min under hydrogen shield.
Technical solution of the present invention is described in detail in above-described embodiment.It is apparent that the present invention is not limited being retouched
The embodiment stated.Based on the embodiments of the present invention, those skilled in the art can also make a variety of variations accordingly, but appoint
What is equal with the present invention or similar variation shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of platinum-silver alloys ultra-fine wire, which comprises the following steps:
(1) melting platinum, silver material, melt obtain platinum-silver alloys ingot casting after quickly solidifying；
(2) by platinum-silver alloys ingot rolling obtained by step (1) at the bar of φ 6mm~φ 8mm, cooperate at annealing in the operation of rolling
Reason；
(3) by bar wire drawing obtained by step (2) to φ 0.01mm~φ 0.1mm, cooperate annealing in drawing process.
2. preparation method as described in claim 1, which is characterized in that melting described in step (1) is incuded using vacuum electromagnetic
Smelting furnace carries out, and is then formed using suction pouring quick solidification apparatus.
3. preparation method as described in claim 1, which is characterized in that silver content in platinum-silver alloys ingot casting described in step (1)
For 5wt%~30wt%.
4. preparation method as described in claim 1, which is characterized in that rolling described in step (2) is cold rolling, pass deformation
It is 2%~5%.
5. preparation method as described in claim 1, which is characterized in that annealing is in rolling reduction described in step (2)
Reach the progress of 10%~20% when, in 700 DEG C~1000 DEG C annealing 30min~50min.
6. preparation method as described in claim 1, which is characterized in that annealing described in step (3) reaches in deflection
It is carried out when 20%~50%, in 600 DEG C~800 DEG C annealing 5min~20min.
7. preparation method as described in claim 1, which is characterized in that annealing process described in step (2) and step (3)
Add logical protective gas, atmosphere is inert gas or reducibility gas.
8. preparation method as claimed in claim 7, which is characterized in that the reducibility gas is hydrogen.
9. preparation method as claimed in claim 2, which is characterized in that leaked using vacuum electromagnetic induction melting furnace the bottom of with the use of
Crucible for smelting platinum, silver material；Before melting, working chamber's vacuum degree should be greater than 1 × 10-4MPa。
10. preparation method as claimed in claim 2, which is characterized in that the suction pouring quick solidification apparatus contains water cooling
Copper mold, the diameter of the water cooled copper mould are 10mm-20mm, and the pressure difference for inhaling casting is controlled in 1Mpa-10Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391150.4A CN109338147A (en) | 2018-11-20 | 2018-11-20 | A kind of preparation method of platinum-silver alloys ultra-fine wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391150.4A CN109338147A (en) | 2018-11-20 | 2018-11-20 | A kind of preparation method of platinum-silver alloys ultra-fine wire |
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| CN109338147A true CN109338147A (en) | 2019-02-15 |
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| CN201811391150.4A Pending CN109338147A (en) | 2018-11-20 | 2018-11-20 | A kind of preparation method of platinum-silver alloys ultra-fine wire |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076474A (en) * | 2019-04-30 | 2019-08-02 | 温州宏丰合金有限公司 | A kind of hard alloy cladding welding material and preparation method thereof |
| CN110983147A (en) * | 2019-12-20 | 2020-04-10 | 有研亿金新材料有限公司 | High-strength palladium-based weak electrical contact material and preparation method thereof |
| CN111599783A (en) * | 2020-04-03 | 2020-08-28 | 广东佳博电子科技有限公司 | Silver-platinum bonding wire utilizing silver-platinum coating and preparation process thereof |
| CN111922114A (en) * | 2020-06-24 | 2020-11-13 | 重庆材料研究院有限公司 | High-purity fine platinum wire and preparation method thereof |
| CN112680680A (en) * | 2020-12-07 | 2021-04-20 | 有研亿金新材料有限公司 | Processing method of Pt-25Ag alloy material |
| CN116618464A (en) * | 2023-03-13 | 2023-08-22 | 河北冀伽康新材料科技有限公司 | Production process of quantum platinum cobalt alloy fiber yarn |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160340758A1 (en) * | 2015-05-19 | 2016-11-24 | Glassimetal Technology, Inc. | Bulk platinum-phosphorus glasses bearing nickel, palladium, silver, and gold |
-
2018
- 2018-11-20 CN CN201811391150.4A patent/CN109338147A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160340758A1 (en) * | 2015-05-19 | 2016-11-24 | Glassimetal Technology, Inc. | Bulk platinum-phosphorus glasses bearing nickel, palladium, silver, and gold |
Non-Patent Citations (1)
| Title |
|---|
| 无: "铂银-20张丝材料", 《上海有色金属》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076474A (en) * | 2019-04-30 | 2019-08-02 | 温州宏丰合金有限公司 | A kind of hard alloy cladding welding material and preparation method thereof |
| CN110983147A (en) * | 2019-12-20 | 2020-04-10 | 有研亿金新材料有限公司 | High-strength palladium-based weak electrical contact material and preparation method thereof |
| CN110983147B (en) * | 2019-12-20 | 2021-05-11 | 有研亿金新材料有限公司 | High-strength palladium-based weak electrical contact material and preparation method thereof |
| CN111599783A (en) * | 2020-04-03 | 2020-08-28 | 广东佳博电子科技有限公司 | Silver-platinum bonding wire utilizing silver-platinum coating and preparation process thereof |
| CN111922114A (en) * | 2020-06-24 | 2020-11-13 | 重庆材料研究院有限公司 | High-purity fine platinum wire and preparation method thereof |
| CN112680680A (en) * | 2020-12-07 | 2021-04-20 | 有研亿金新材料有限公司 | Processing method of Pt-25Ag alloy material |
| CN116618464A (en) * | 2023-03-13 | 2023-08-22 | 河北冀伽康新材料科技有限公司 | Production process of quantum platinum cobalt alloy fiber yarn |
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Application publication date: 20190215 |