CN103658603B - Silver rare-earth alloy coated nickel core composite electrode wire and manufacture method thereof - Google Patents
Silver rare-earth alloy coated nickel core composite electrode wire and manufacture method thereof Download PDFInfo
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- CN103658603B CN103658603B CN201310131273.5A CN201310131273A CN103658603B CN 103658603 B CN103658603 B CN 103658603B CN 201310131273 A CN201310131273 A CN 201310131273A CN 103658603 B CN103658603 B CN 103658603B
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Abstract
Silver rare-earth alloy coated nickel core composite electrode wire and manufacture method thereof belong to metallic composite field.The invention provides a kind of arc spraying atomization preparation silver-colored nickel rare earth composite powder end composite electrode wire and preparation method thereof.Composite electrode wire is made up of the coated nickel core of silver rare-earth alloy, and composite filament nickel core mass percentage is 10-60%, rare earth mass percentage is 0.1-1%; The silver rare-earth alloy liquid good through vacuum fusion is cast in centre to be placed with in the mold of nickel rod and to obtain the circular compound strand of diameter 80-90 millimeter by composite filament preparation method, compound strand through being hot extruded into the bar of 6-8 mm dia, then by composite bar again cold drawing be the composite electrode wire of diameter 1.5-3 millimeter specification.The shortcoming that the present invention effectively overcomes in existing silver-colored nickel rare earth powder metallurgy contact material preparation process, powder mixing machine legal system exists for silver-colored nickel rare earth mixed-powder.
Description
Technical field
The invention belongs to metallic composite field, be specifically related to silver rare-earth alloy coated nickel core composite electrode wire and the manufacture method thereof at the silver-colored nickel rare earth composite powder end of a kind of arc spraying atomization preparation.
Technical background
Silver nickel rare earth material is the contact material for function admirable in electric switch, because silver does not dissolve each other with nickel is solid-state, silver rare-earth alloy fusing-aerosol is first turned to silver rare-earth alloy powder, then obtains silver-colored nickel rare earth mixed-powder with nickel powder mechanical mixture by the preparation method of this material, then is prepared into the contact material of required specification by powder metallurgy process.There are two major defects in the existing method preparing this material: silver-colored nickel rare earth mixed-powder complicated process of preparation, the cycle is long, cost is high; Additional mixing powder particle is comparatively thick, uniformity is poor, material property raising is restricted.
Summary of the invention
The object of this invention is to provide a kind of coated nickel composite electrode wire of silver rare-earth alloy and the manufacture method thereof that are suitable for arc spraying atomization low cost and prepare silver-colored nickel rare earth composite powder end, to overcome the shortcoming that above-mentioned prior art exists.
The composite electrode wire of the coated nickel core of silver rare-earth alloy of the present invention, it by silver rare-earth alloy be clad, nickel is that cored is formed, nickel core mass percentage is 10-60%, rare earth mass percentage is 0.1-1%, and surplus is silver; Rare earth element in described silver rare-earth alloy is cerium, lanthanum, ytterbium and yttrium etc.; In composite electrode wire, the rare earth element of silver rare-earth alloy can be one or more.
The preparation method of the composite electrode wire of the coated nickel core of silver rare-earth alloy of the present invention, preparation process is:
By proportioning, silver and rare earth element are fused into silver rare-earth alloy liquid in graphite crucible in a, first in a vacuum frequency induction melting furnace, and before casting, the nickel core by proportion design is placed in mold center, then at vacuum state, silver rare-earth alloy liquid is watered the silver-colored rare earth coated nickel core compound circle base obtaining diameter 80-90 millimeter in mold; Described vacuum is 0.1-0.005Pa;
B, the compound circle base obtained by step a heat 2-3 hour, and then are the silver-colored rare earth coated nickel core compound bar of 6-8 millimeter through 400-500 DEG C of hot extrusion under 600-750 DEG C of carbon dust protection of the environment;
C, the compound bar obtained by step b are cold drawn to 1.5-3 millimeter and obtain silver rare-earth alloy coated nickel core composite electrode wire.
Described mold is the one in iron or graphite.
The silver rare-earth alloy coated nickel core composite electrode wire that the present invention proposes is used for the silver-colored nickel rare earth composite powder end of arc spraying atomization preparation: manufacturing cycle is short, efficiency is high, cost is low; Composite powder obtains micro nanocrystalline structure and nickel in silver and the mutual metastable Extension of solid solubility of silver in nickel, composite powder is evenly distributed, sphericity is high, powder average diameter is less than 40 microns, one time powder formation rate and is greater than 98% because of rapid solidification; Effectively overcome in existing silver-colored nickel rare earth powder metallurgy contact material preparation process, shortcoming that powder mixing machine legal system exists for silver-colored nickel rare earth mixed-powder, in the manufacture of high-performance silver nickel rare earth contact material, there is important application.
Detailed description of the invention
Following illustrating implements method of the present invention, but implementation method is not limited to embodiment.
Embodiment 1
1500 grams of nickel rods be placed in circular cast iron casting mould center and put into vaccum sensitive stove together, again the graphite crucible that 8450 grams of silver, 50 grams of ceriums put into vacuum medium frequency induction furnace is together melted, then the uniform silver jeweleries aluminium alloy of fusing is watered in the cast iron casting mould cast from nickel rod and obtain mass percentage nickel 15%, silver-colored cerium coated nickel compound circle base that decorations 0.5%, surplus are silver; Compound circle base, 600 DEG C of carbon dust protection heating 2 hours, is then the composite bar of diameter 6 millimeters through 400 DEG C of hot extrusions with 500 tons of oily extruders; Composite bar obtains the silver-colored cerium coated nickel core composite electrode wire of diameter 1.5 millimeters in room temperature through repeatedly drawing.
Embodiment 2
3000 grams of nickel rods be placed in graphite casting die center and put into vaccum sensitive stove together, again 6930 grams of silver, Rare Earth Lanthanum 70 grams of graphite crucibles putting into vacuum medium frequency induction furnace are together melted, then the uniform silver-colored lanthanum alloy liquid of fusing are watered in the graphite casting die cast from nickel rod and obtain mass percentage nickel 30%, silver-colored lanthanum coated nickel compound circle base that lanthanum 0.7%, surplus are silver; Compound circle base, 700 DEG C of carbon dust protection heating 2 hours, is then the composite bar of diameter 6 millimeters through 450 DEG C of hot extrusions with 500 tons of oily extruders; Composite bar obtains the silver-colored lanthanum coated nickel core composite electrode wire of diameter 2 millimeters in room temperature through repeatedly drawing.
Embodiment 3
5000 grams of nickel rods be placed in graphite casting die center and put into vaccum sensitive stove together, again 4950 grams of silver, rare-earth yttrium 50 grams of graphite crucibles putting into vacuum medium frequency induction furnace are together melted, then the uniform silver-colored yittrium alloy liquid of fusing are watered in the graphite casting die cast from nickel rod and obtain mass percentage nickel 50%, silver-colored yttrium coated nickel compound circle base that yttrium 0.5%, surplus are silver; Compound circle base, 750 DEG C of carbon dust protection heating 2 hours, is then the composite bar of diameter 6 millimeters through 500 DEG C of hot extrusions with 500 tons of oily extruders; Composite bar obtains the silver-colored yttrium coated nickel core composite electrode wire of diameter 3 millimeters in room temperature through repeatedly drawing.
Embodiment 4
2000 grams of nickel rods be placed in cast iron casting mould center and put into vaccum sensitive stove together, again 7950 grams of silver, rare earth ytterbium 50 grams of graphite crucibles putting into vacuum medium frequency induction furnace are together melted, then the uniform silver-colored ytterbium aluminium alloy of fusing are watered in the cast iron casting mould cast from nickel rod and obtain mass percentage nickel 20%, silver-colored ytterbium coated nickel compound circle base that ytterbium 0.5%, surplus are silver; Compound circle base, 650 DEG C of carbon dust protection heating 2.5 hours, is then the composite bar of diameter 6 millimeters through 450 DEG C of hot extrusions with 500 tons of oily extruders; Composite bar obtains the silver-colored ytterbium coated nickel core composite electrode wire of diameter 2.5 millimeters in room temperature through repeatedly drawing.
Embodiment 5
2000 grams of nickel rods be placed in cast iron casting mould center and put into vaccum sensitive stove together, again 7900 grams of silver, cerium 50 grams, lanthanum 50 grams of graphite crucibles putting into vacuum medium frequency induction furnace are together melted, then the uniform silver-colored cerium mischmetal liquid of fusing are watered in the cast iron casting mould cast from nickel rod and obtain mass percentage nickel 20%, silver-colored cerium lanthanum coated nickel compound circle base that cerium 0.5%, lanthanum 0.5%, surplus are silver; Compound circle base, 650 DEG C of carbon dust protection heating 3 hours, is then the composite bar of diameter 6 millimeters through 450 DEG C of hot extrusions with 500 tons of oily extruders; Composite bar obtains the silver-colored cerium lanthanum coated nickel core composite electrode wire of diameter 2 millimeters in room temperature through repeatedly drawing.
Embodiment 6
3000 grams of nickel rods be placed in graphite casting die center and put into vaccum sensitive stove together, again 6930 grams of silver, Rare Earth Lanthanum 30 grams, yttrium 20 grams, cerium 20 grams of graphite crucibles putting into vacuum medium frequency induction furnace are together melted, then the uniform silver-colored lanthanum yttrium cerium alloy liquid of fusing are watered in the graphite casting die cast from nickel rod and obtain mass percentage nickel 30%, silver-colored lanthanum yttrium cerium coated nickel compound circle base that lanthanum 0.3%, yttrium 0.2%, cerium 0.2%, surplus are silver; Compound circle base, 700 DEG C of carbon dust protection heating 2.5 hours, is then the composite bar of diameter 6 millimeters through 450 DEG C of hot extrusions with 500 tons of oily extruders; Composite bar obtains the silver-colored lanthanum yttrium cerium coated nickel core composite electrode wire of diameter 2.5 millimeters in room temperature through repeatedly drawing.
Claims (4)
1. a composite electrode wire for the coated nickel core of silver rare-earth alloy, is characterized in that, it by silver rare-earth alloy be clad, nickel is that cored is formed, nickel core mass percentage is 10-60%, rare earth mass percentage is 0.1-1%, and surplus is silver; In composite electrode wire, the rare earth element of silver rare-earth alloy is one or more.
2. the composite electrode wire of the coated nickel core of silver rare-earth alloy according to claim 1, is characterized in that, described rare earth element is cerium, lanthanum, ytterbium and yttrium.
3. a preparation method for the composite electrode wire of the coated nickel core of silver rare-earth alloy according to claim 1, it is characterized in that, preparation process is:
By proportioning, silver and rare earth element are fused into silver rare-earth alloy liquid in graphite crucible in a, first in a vacuum frequency induction melting furnace, and before casting, the nickel core by proportion design is placed in mold center, then at vacuum state, silver rare-earth alloy liquid is watered the silver-colored rare earth coated nickel core compound circle base obtaining diameter 80-90 millimeter in mold; Described vacuum is 0.1-0.005Pa;
B, the compound circle base obtained by step a heat 2-3 hour, and then are the silver-colored rare earth coated nickel core compound bar of diameter 6-8 millimeter through 400-500 DEG C of hot extrusion under 600-750 DEG C of carbon dust protection of the environment;
C, the compound bar obtained by step b are cold drawn to diameter 1.5-3 millimeter and obtain silver rare-earth alloy coated nickel core composite electrode wire.
4. the preparation method of the composite electrode wire of the coated nickel core of silver rare-earth alloy according to claim 3, is characterized in that, mold is the one in swage or graphite mo(u)ld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310131273.5A CN103658603B (en) | 2013-04-16 | 2013-04-16 | Silver rare-earth alloy coated nickel core composite electrode wire and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310131273.5A CN103658603B (en) | 2013-04-16 | 2013-04-16 | Silver rare-earth alloy coated nickel core composite electrode wire and manufacture method thereof |
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| Publication Number | Publication Date |
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| CN103658603A CN103658603A (en) | 2014-03-26 |
| CN103658603B true CN103658603B (en) | 2016-03-30 |
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| CN201310131273.5A Expired - Fee Related CN103658603B (en) | 2013-04-16 | 2013-04-16 | Silver rare-earth alloy coated nickel core composite electrode wire and manufacture method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073292A (en) * | 1991-12-12 | 1993-06-16 | 中国有色金属工业总公司昆明贵金属研究所 | Silver based alloy electric contact material |
| CN1104260A (en) * | 1994-09-06 | 1995-06-28 | 中国有色金属工业总公司昆明贵金属研究所 | Silver-tase alloy electric probe material |
| CN1547228A (en) * | 2003-12-16 | 2004-11-17 | 昆明贵金属研究所 | Silver base alloy electrical contact material and method for making same |
| CN1617274A (en) * | 2004-12-03 | 2005-05-18 | 昆明贵金属研究所 | Silver base electric contact composite material |
| CN102864325A (en) * | 2012-09-12 | 2013-01-09 | 宁波汉博贵金属合金有限公司 | Multielement rare earth silver electric contact as well as preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100647A (en) * | 1981-12-09 | 1983-06-15 | Tanaka Kikinzoku Kogyo Kk | Electrical contact material |
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2013
- 2013-04-16 CN CN201310131273.5A patent/CN103658603B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073292A (en) * | 1991-12-12 | 1993-06-16 | 中国有色金属工业总公司昆明贵金属研究所 | Silver based alloy electric contact material |
| CN1104260A (en) * | 1994-09-06 | 1995-06-28 | 中国有色金属工业总公司昆明贵金属研究所 | Silver-tase alloy electric probe material |
| CN1547228A (en) * | 2003-12-16 | 2004-11-17 | 昆明贵金属研究所 | Silver base alloy electrical contact material and method for making same |
| CN1617274A (en) * | 2004-12-03 | 2005-05-18 | 昆明贵金属研究所 | Silver base electric contact composite material |
| CN102864325A (en) * | 2012-09-12 | 2013-01-09 | 宁波汉博贵金属合金有限公司 | Multielement rare earth silver electric contact as well as preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| Rapid Solidification Features of Ag-10Ni Immiscible Alloy by Ultrasonic Arc Spray Gas Atomization;Qin Guoyi et al.;《Rare Metal Materials And Engineering》;20070531;第36卷(第5期);第924-928页 * |
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Granted publication date: 20160330 Termination date: 20190416 |