CN103752805B - The manufacture method of the coated nickel of silver or iron core composite electrode wire - Google Patents
The manufacture method of the coated nickel of silver or iron core composite electrode wire Download PDFInfo
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- CN103752805B CN103752805B CN201310131208.2A CN201310131208A CN103752805B CN 103752805 B CN103752805 B CN 103752805B CN 201310131208 A CN201310131208 A CN 201310131208A CN 103752805 B CN103752805 B CN 103752805B
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- silver
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- iron core
- electrode wire
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Abstract
The manufacture method of the coated nickel of silver or iron core composite electrode wire belongs to metallic composite field, be specifically related to the preparation method of a kind of Ag coated Ni or Fe core recombination line, the invention provides the preparation method of the silver-colored nickel of a kind of arc spraying atomization preparation, silver-colored iron composite powder end composite electrode wire.Composite electrode wire is made up of the coated nickel of silver or iron core, and in composite filament, nickel or iron core mass percentage are 10-60%, and surplus is silver.The silvering solution good through vacuum fusion is cast in centre to be placed with in the mold of nickel or iron core 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, the metallurgical contact material preparation process of silver-colored iron powder, chemical coprecipitation and powder mixing machine legal system exist for silver-colored nickel, silver-colored iron mixed-powder.
Description
Technical field
The invention belongs to metallic composite field, be specifically related to the preparation method of a kind of Ag coated Ni or Fe core recombination line.
Technical background
Silver nickel, the application of the metallurgical contact material of silver-colored iron powder in electric switch have history decades, but due to silver with nickel, iron is solid-state does not dissolve each other, the preparation method of this bi-material first adopts chemical coprecipitation or mechanical mixing to prepare silver-colored nickel, silver-colored iron mixed-powder, then prepare silver-colored nickel, silver-colored ferroelectric contact material with powder metallurgy process at present.There are two major defects in above-mentioned preparation method: mixed powder manufacturing cycle is long, environmental protection is poor, cost is high; Mechanical mixture powder particles is comparatively thick in addition, uniformity is poor, material property raising is restricted.
Summary of the invention
The object of this invention is to provide a kind of arc spraying atomization low cost, short route of being suitable for and prepare silver-colored nickel, the coated nickel of silver at silver-colored iron composite powder end or the manufacture method of iron core composite electrode wire, with the shortcoming overcoming above-mentioned existing silver-colored nickel, silver-colored iron composite powder end technology of preparing exists.
The coated nickel of silver of the present invention or iron core composite electrode wire are clad, nickel or iron by silver is that cored is formed, and in composite electrode wire, nickel or weight of iron percentage composition are 10-60%, and surplus is silver.
The coated nickel of silver of the present invention or iron core composite electrode wire preparation method, the steps include:
A, first in vacuum be 0.1-0.005Pa medium frequency induction melting furnace in by proportioning, silver is melted in graphite crucible, and mold center is placed in by by the nickel of proportion design or iron core rod before casting, mold is swage or graphite mo(u)ld, then at vacuum state silvering solution is watered in mold, obtain diameter 80-90 millimeter the coated nickel of silver or iron core compound circle base;
B, the compound circle base obtained by step a heat 2-3 hour, and then are the coated nickel of silver or the iron core compound bar of 6-8 millimeter through 400-500 DEG C of hot extrusion under 600-700 DEG C of carbon dust protection;
C, the compound bar obtained by step b are cold drawn to 1.5-3 millimeter and obtain silver-colored coated nickel or iron core composite electrode wire.
The coated nickel of silver that the present invention proposes or iron core composite electrode wire are used for ultrasonic arc spray and prepare silver-colored nickel, silver-colored iron composite powder end: manufacturing cycle is short, efficiency is high, cost is low; Composite powder obtains micro nanocrystalline structure and nickel or iron in silver and the mutual metastable Extension of solid solubility of silver in nickel or iron, composite powder is evenly distributed, sphericity is high, powder average diameter is less than 40 microns, once-combined powder yield rate is greater than 98% because of rapid solidification; Effectively overcome in existing silver-colored nickel, the metallurgical contact material preparation process of silver-colored iron powder, shortcoming that chemical coprecipitation and powder mixing machine legal system exist for silver-colored nickel, silver-colored iron mixed-powder, in high-performance silver nickel, silver-colored ferroelectric contact material manufacture, 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 or iron staff be placed in circular cast iron casting mould center and put into vaccum sensitive stove together, again the graphite crucible that 8500 grams of silver put into vacuum medium frequency induction furnace is melted, then the silvering solution of fusing is watered in the cast iron casting mould cast from nickel or iron core rod and obtain mass percentage nickel or iron 15%, the coated nickel of silver or iron core compound circle base that surplus is silver; Compound circle base heats 3 hours under 600 DEG C of carbon dust protections, 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 coated nickel of silver or the iron core composite electrode wire of diameter 1.5 millimeters in room temperature through repeatedly drawing.
Embodiment 2
3000 grams of nickel or iron staff be placed in graphite casting die center and put into vaccum sensitive stove together, again the graphite crucible that 7000 grams of silver put into vacuum medium frequency induction furnace is melted, then the silvering solution of fusing is watered in the graphite casting die cast from nickel or iron core rod and obtain mass percentage nickel or iron 30%, the coated nickel of silver or iron core compound circle base that surplus is silver; Compound circle base heats 2.5 hours under 650 DEG C of carbon dust protections, 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 coated nickel of silver or the iron core composite electrode wire of diameter 2 millimeters in room temperature through repeatedly drawing.
Embodiment 3
5000 grams of nickel or iron staff be placed in graphite casting die center and put into vaccum sensitive stove together, again the graphite crucible that 5000 grams of silver put into vacuum medium frequency induction furnace is melted, then the silvering solution of fusing is watered in the graphite casting die cast from nickel or iron staff and obtain mass percentage nickel or iron 50%, the coated nickel of silver or iron core compound circle base that surplus is silver; Compound circle base heats 2 hours under 700 DEG C of carbon dust protections, 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 coated nickel of silver or the iron core composite electrode wire of diameter 3 millimeters in room temperature through repeatedly drawing.
Claims (2)
1. a preparation method for the coated nickel of silver or iron core composite electrode wire, is characterized in that, composite electrode wire is clad by silver, and nickel or iron are that cored is formed; The mass percentage of composite filament nickel or iron core is 10-60%, and surplus is silver; Its preparation method is:
Melt in graphite crucible by the silver of proportioning by 40-90% in a, first in a vacuum frequency induction melting furnace, and before casting, the nickel of the 10-60% by proportion design or iron core rod are placed in mold center, then at vacuum state, silvering solution is watered the compound circle base of the coated nickel of silver or the iron core obtaining diameter 80-90 millimeter in mold; Described vacuum is 0.005-0.1Pa;
B, the compound circle base obtained by step a heat 2-3 hour, and then are the coated nickel of silver or the iron core compound bar of 6-8 millimeter through 400-500 DEG C of hot extrusion under 600-700 DEG C of carbon dust protective condition;
C, the compound bar obtained by step b are cold drawn to the composite electrode wire that 1.5-3 millimeter obtains silver-colored coated nickel or iron core.
2. the preparation method of the coated nickel of silver according to claim 1 or iron core composite electrode wire, is characterized in that, mold is swage or graphite mo(u)ld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131208.2A CN103752805B (en) | 2013-04-16 | 2013-04-16 | The manufacture method of the coated nickel of silver or iron core composite electrode wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131208.2A CN103752805B (en) | 2013-04-16 | 2013-04-16 | The manufacture method of the coated nickel of silver or iron core composite electrode wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103752805A CN103752805A (en) | 2014-04-30 |
| CN103752805B true CN103752805B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310131208.2A Expired - Fee Related CN103752805B (en) | 2013-04-16 | 2013-04-16 | The manufacture method of the coated nickel of silver or iron core composite electrode wire |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711792B (en) * | 2019-09-24 | 2021-03-02 | 国网江西省电力有限公司电力科学研究院 | Silver-copper-iron composite conductive wire and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0799655A1 (en) * | 1996-03-26 | 1997-10-08 | Shin-Etsu Handotai Company Limited | Method of Manufacturing wire for use in a wire saw and wire for use in a wire saw |
| CN101185965A (en) * | 2007-12-21 | 2008-05-28 | 金龙精密铜管集团股份有限公司 | Method for manufacturing metal composite pipe blank and device for manufacturing metal composite pipe blank |
| CN101261888A (en) * | 2008-04-09 | 2008-09-10 | 宁波博威麦特莱材料有限公司 | High-conductivity and high-tenacity compound line and its making method |
| CN201239836Y (en) * | 2008-07-16 | 2009-05-20 | 金劲 | Composite wire electrode for fast wire winding |
| CN102528190A (en) * | 2012-02-21 | 2012-07-04 | 宁波博威麦特莱科技有限公司 | Efficient multilayer composite electrode wire and preparation method thereof |
-
2013
- 2013-04-16 CN CN201310131208.2A patent/CN103752805B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0799655A1 (en) * | 1996-03-26 | 1997-10-08 | Shin-Etsu Handotai Company Limited | Method of Manufacturing wire for use in a wire saw and wire for use in a wire saw |
| CN101185965A (en) * | 2007-12-21 | 2008-05-28 | 金龙精密铜管集团股份有限公司 | Method for manufacturing metal composite pipe blank and device for manufacturing metal composite pipe blank |
| CN101261888A (en) * | 2008-04-09 | 2008-09-10 | 宁波博威麦特莱材料有限公司 | High-conductivity and high-tenacity compound line and its making method |
| CN201239836Y (en) * | 2008-07-16 | 2009-05-20 | 金劲 | Composite wire electrode for fast wire winding |
| CN102528190A (en) * | 2012-02-21 | 2012-07-04 | 宁波博威麦特莱科技有限公司 | Efficient multilayer composite electrode wire and preparation method thereof |
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| CN103752805A (en) | 2014-04-30 |
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