CN102127720B - Method and device for continuously preparing superfine amorphous alloy wire - Google Patents
Method and device for continuously preparing superfine amorphous alloy wire Download PDFInfo
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- CN102127720B CN102127720B CN2011100329072A CN201110032907A CN102127720B CN 102127720 B CN102127720 B CN 102127720B CN 2011100329072 A CN2011100329072 A CN 2011100329072A CN 201110032907 A CN201110032907 A CN 201110032907A CN 102127720 B CN102127720 B CN 102127720B
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 62
- 239000000956 alloy Substances 0.000 claims abstract description 62
- 239000011521 glass Substances 0.000 claims abstract description 54
- 230000003028 elevating effect Effects 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 14
- 238000010618 wire wrap Methods 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 14
- 238000004804 winding Methods 0.000 abstract 3
- 241001076960 Argon Species 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 abstract 1
- 235000013876 argon Nutrition 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000011437 continuous method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009469 supplementation Effects 0.000 description 2
- 230000005330 Barkhausen effect Effects 0.000 description 1
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention relates to a method and device for continuously preparing a superfine amorphous alloy wire. The device comprises a vacuum system, an elevating system, an alloy leading-in system, a heating system, a cooling system and a wire winding system. The method is characterized by comprising the following steps of: smelting proportioned alloy and suction molding; cutting into an ally ingot with the length of 4-10 mm and an alloy bar with the length of 10-70 mm; placing the alloy ingots at the bottom of a glass test tube; connecting the alloy bar with a leading-in bar; connecting the glass test tube with the bottom end of a bellow; after vacuumizing and charging argons, induction heating to enable alloy at the bottom of the test tube to be smelted and the bottom of the glass test tube to be softened therewith; dragging out a fine wire from the bottom of the glass test tube by using a glass bar with a tip; and winding the fine wire cooled with water spray on a wire winding wheel through the guide of a guide wheel. In the preparation process, an elevating bar is descended, the welded bellow is lengthened, the glass test tube is descended, and consumed glass is complemented; when a lead-in device is rotated, the lead-in bar and the alloy bar are continuously descended, and the consumed alloy is complemented; and the aim for continuously preparing the superfine amorphous alloy wire is realized.
Description
Technical field
The invention belongs to direct forming and the near-net-shape technology of producing amorphous alloy wire, a kind of continuous method and device thereof for preparing amorphous alloy wire mainly is provided.
Background technology
Amorphous alloy wire is the novel non-crystalline material that behind amorphous thin ribbon, occurs, and has special mechanical property and physicals: tensile strength is high, big, the unique magnetic effect of elastic limit, comprises giant magnetoresistance effect and big Barkhausen's effect etc.Therefore, amorphous alloy wire both can be used as structured material, also can be used as functional materials.Preparation circularity is high, the amorphous alloy wire of good uniformity, has become the gordian technique that various countries fall over each other to study.
Existing amorphous alloy wire preparation method comprises that glass coats method, interior round water spins method and melt pull method.It is relatively poor that interior circle water spins legal system silk cooling power, and quench liquid is easy and the high-temperature fusion alloy reaction, and melt pull method is difficult to prepare continuous overlength amorphous alloy wire.Have only glass to coat method and can prepare ultra-fine (3 ~ 100 μ m) amorphous alloy wire.
At present, glass coating unit both domestic and external can't be realized the continuous supplementation of alloy raw material in the preparation process mostly, thereby can't reach the purpose of continuous preparation amorphous alloy wire; Realize that the device of continuously feeding often can't accomplish again and atmospheric isolation, and can only in open glass test tube, feed argon shield,, can't reach the purpose of continuous preparation for easy high temperature oxidation alloy system.
Summary of the invention
The object of the present invention is to provide a kind of method and apparatus of continuous preparation ultrafine amorphous alloy silk, realize the continuous preparation of amorphous alloy wire, preparation diameter 3 ~ 100 μ m, the ultra-fine successive amorphous alloy wire of high quality material.The continuous production that is suitable for amorphous alloy wires such as Fe base, Co base, Ni base.
Technical scheme of the present invention is: a kind of continuous method for preparing amorphous alloy wire specifically may further comprise the steps:
Step 1: will become uniform mother alloy by the alloy arc melting that nominal composition prepares earlier, and inhale and cast the alloy bar that diameter is 3 ~ 10mm, cut growth is that the alloy pig of 4 ~ 10mm is the alloy bar of 10 ~ 70mm with length;
Step 2: the alloy pig that makes is put into the bottom of Glass tubing, alloy bar with import bar and be connected, Glass tubing leaves mechanical pump and is evacuated to 2.5Pa with after welding bellows is connected, applying argon gas then is evacuated to 2.5Pa again to 0.1MPa, applying argon gas is to 0.1MPa;
Step 3: start the incidental high-frequency induction device of ruhmkorff coil, with the alloy pig induction melting, the Glass tubing bottom is softening simultaneously; Start infrared thermometer monitoring alloy temperature, when alloy pig and bottom glass pipe reached molten state, the glass stick most advanced and sophisticated with the band for preparing in advance went out the alloy threadlet of glass coating from the bottom traction of remollescent glass test tube; Rotate the upper end rotating shaft of straight line inducting device simultaneously, make to import bar and alloy bar decline, replenish the alloy that is consumed; Start linear servo-actuator, elevating lever constantly descends under the effect of linear servo-actuator, makes the corrugated tube elongation, and glass test tube descends thereupon, replenishes the glass that is consumed;
Step 4: will obtain diameter continuously and be alloy threadlet that the glass of 3 ~ 100 μ m coats through the cooling of water cooling plant water spray, after guide wheel is on wire wrapping wheel.
Another object of the present invention provides above-mentioned preparing method's device; This device is made up of vacuum system, jacking system, alloy import system, heating system, cooling system and wrapping wire system; Wherein, Said alloy import system is made up of straight line inducting device, four-way, importing bar, corrugated tube and Glass tubing, and said jacking system is made up of servomotor and elevating lever; Wherein, Said straight line inducting device is connected with said four-way top, the bottom welding of said corrugated tube and said four-way, and the bottom of said corrugated tube is connected with Glass tubing; Be provided with the importing bar in the said Glass tubing; Said importing bar passes said corrugated tube and is connected with said straight line inducting device with four-way, and the bottom of said corrugated tube is connected with said elevating lever, and said elevating lever is connected with linear servo-actuator.
The present invention has the following advantages:
The present invention has broken through the defective of the method for glass coating in the past, and at complete secluding air, the high-purity argon gas protection is the continuous supplementation alloy raw material down, has realized thoroughly avoiding the continuous production under the material oxidation.Have advantages such as Production Flow Chart weak point, high efficiency, continuous preparation, the amorphous alloy wire circularity of preparing is high, good uniformity, is suitable for extensive, industrialization production.
The amorphous alloy wire surface quality of this method preparation is good, circularity is high, ultra-fine, can reach 3 ~ 100 μ m, be to prepare a kind of method thinner in the amorphous alloy wire at present.
Description of drawings
Fig. 1 is the structural representation that the present invention prepares the device of amorphous alloy wire continuously.
Fig. 2 glass of the present invention coats the X ray diffracting spectrum of amorphous alloy wire.
Among the figure
| 1. straight |
8. |
| 2. four- |
9. ruhmkorff |
| 3. |
10. |
| 4. |
11. glass |
| 5. |
12. |
| 6. |
13. |
| 7. |
14. wire wrapping wheel |
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Fig. 1 is the structural representation of the device of a kind of continuous preparation ultrafine amorphous alloy silk of the present invention.As shown in Figure 1; A kind of device of continuous preparation ultrafine amorphous alloy silk, this device is made up of vacuum system, jacking system, alloy import system, heating system, cooling system and wrapping wire system, wherein; The alloy import system is made up of straight line inducting device 1, four-way 2, importing bar 4, corrugated tube 6 and Glass tubing 7; Jacking system is made up of servomotor 3 and elevating lever 5, and corrugated tube 6 tops connect four-way 2, the bleeding point of four-way 2 right ends and vacuum system and inflation inlet welding; Corrugated tube 6 bottom welding junctions connect Glass tubing 7, and welding elevating lever 5, and elevating lever 5 is connected with linear servo-actuator 3.Elevating lever 5 rises or descends and makes welding bellows 6 compress or stretching, thus the up-down of feed glass pipe 7.The upper end of four-way 2 connects straight line inducting device 1, and straight line inducting device 1 is connected with importing bar 4, imports bar 4 lower ends and connects alloy bar 8.The pallet middle part has high-frequency induction equipment, ruhmkorff coil 9 can heat test tube bottom alloy, and infrared thermometer 10, survey record alloy bath temperature are placed in the next door.There is height-adjustable waterworks 12 ruhmkorff coil 9 lower ends.Semi-surrounding formula captation is collected water coolant, adopts little water pump to recycle water coolant.Guide wheel 13, wire wrapping wheel 14 are in this bracing frame bottom.Wire wrapping wheel 14 adjustable-speed.Wire wrapping wheel 14 is enclosed within the rotating shaft of motor, can dismantle.
Servomotor 3 drives apart from 0.6m, and actuating speed is adjustable at 0-10.0mm/min.
Straight line inducting device 1 can import distance 70 mm.
Waterworks 12 can be regulated from 0-10cm apart from the test tube bottom level.
(1) with purity greater than 99.9% Co, Fe and Si, B according to nominal composition Co
68.15Fe
4.35Si
12.5B
15Proportioning is inhaled the alloy bar of casting diameter 6mm behind the molten alloy, be that the alloy pig of 6mm is the alloy bar 8 of 50mm with length with alloy bar line cut growth.
(2) alloy pig that makes is put into Glass tubing 7, alloy bar 8 with import bar 4 and be connected, Glass tubing 7 leaves mechanical pump and is evacuated to 2.5Pa with after welding bellows 6 is connected, applying argon gas then is evacuated to 2.5Pa again to 0.1MPa, applying argon gas is to 0.1MPa.
(3) start ruhmkorff coil 9 incidental high-frequency induction devices; Alloy pig is by induction melting; Glass tubing bottom is softening, and when infrared measurement of temperature 10 recorded alloy temperature and is 1050 ° of C, the glass stick most advanced and sophisticated with the band for preparing in advance went out filament 11 from the bottom traction of remollescent glass test tube.
(4) alloy threadlet 11 that coats of this glass by water cooling plant 12 water spray coolings after guide wheel around 13 on wire wrapping wheel 14.Wire wrapping wheel 14 rotating speed 360r/min, elevating lever 5 constantly descends in the preparation process, and corrugated tube 6 elongates, and glass test tube 7 descends thereupon, replenishes the glass that is consumed; Alloy bar 8 constantly descends under the effect of inducting device 1 and importing bar 4, replenishes the alloy that is consumed.
It is as shown in Figure 2 respectively that the glass that obtains coats the amorphous alloy wire X ray diffracting spectrum.
Claims (2)
1. a method for preparing amorphous alloy wire continuously is characterized in that, specifically may further comprise the steps:
Step 1: will become uniform mother alloy by the alloy arc melting that nominal composition prepares earlier, and inhale and cast the alloy bar that diameter is 3～10mm, cut growth is that the alloy pig of 4～10mm is the alloy bar of 10～70mm with length;
Step 2: the alloy pig that makes is put into the bottom of Glass tubing, alloy bar with import bar and be connected, Glass tubing leaves mechanical pump and is evacuated to 2.5Pa with after welding bellows is connected, applying argon gas then is evacuated to 2.5Pa again to 0.1MPa, applying argon gas is to 0.1MPa;
Step 3: start the incidental high-frequency induction device of ruhmkorff coil, with the alloy pig induction melting, the Glass tubing bottom is softening simultaneously; Start infrared thermometer monitoring alloy temperature, when alloy pig and bottom glass pipe reached molten state, the glass stick most advanced and sophisticated with the band for preparing in advance went out the alloy threadlet of glass coating from the bottom traction of remollescent glass test tube; Rotate the upper end rotating shaft of straight line inducting device simultaneously, make to import bar and alloy bar decline, replenish the alloy that is consumed; Start linear servo-actuator, elevating lever constantly descends under the effect of linear servo-actuator, makes the corrugated tube elongation, and glass test tube descends thereupon, replenishes the glass that is consumed;
Step 4: with the diameter that makes is that the alloy threadlet that coats of the glass of 3～100 μ m is through the cooling of water cooling plant water spray, after guide wheel is on wire wrapping wheel.
2. be used for the described continuous device for preparing the method for amorphous alloy wire of claim 1; It is characterized in that; This device is made up of vacuum system, jacking system, alloy import system, heating system, cooling system and wrapping wire system; It is characterized in that said alloy import system is made up of straight line inducting device (1), four-way (2), importing bar (4), corrugated tube (6) and Glass tubing (7), said jacking system is made up of servomotor (3) and elevating lever (5); Wherein, Said straight line inducting device (1) is connected with said four-way (2) top, and said corrugated tube (6) welds with the bottom of said four-way (2), and the bottom of said corrugated tube (6) is connected with Glass tubing (7); Be provided with in the said Glass tubing (7) and import bar (4); Said importing bar (4) passes said corrugated tube (6) and is connected with said straight line inducting device (1) with four-way (2), and the bottom of said corrugated tube (6) is connected with said elevating lever (5), and said elevating lever (5) is connected with linear servo-actuator (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100329072A CN102127720B (en) | 2011-01-30 | 2011-01-30 | Method and device for continuously preparing superfine amorphous alloy wire |
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| CN2011100329072A CN102127720B (en) | 2011-01-30 | 2011-01-30 | Method and device for continuously preparing superfine amorphous alloy wire |
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| CN102127720B true CN102127720B (en) | 2012-06-06 |
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| CN106312376B (en) * | 2015-06-26 | 2019-11-15 | 云南锡业集团有限责任公司研究设计院 | A method of producing ultra-fine solder stick |
| CN105316527B (en) * | 2015-11-26 | 2017-12-22 | 北京科技大学 | A kind of nickel manganese gallium super-elastic shape memory alloy wire and preparation method thereof |
| CN105908051B (en) * | 2016-05-25 | 2018-01-02 | 北京科技大学 | A kind of preparation method of high super-elasticity NiMnSnCo alloy fine wires |
| CN106252007B (en) * | 2016-08-02 | 2018-03-30 | 北京科技大学 | A kind of preparation method of boundling non-crystaline amorphous metal microfilament composite |
| CN106449424A (en) * | 2016-09-21 | 2017-02-22 | 苏州新世界纳米科技有限公司 | Preparation method of silver microwire |
| CN106807799B (en) * | 2016-12-27 | 2017-11-24 | 华中科技大学 | A kind of preparation method of amorphous alloy wire |
| CN107900297B (en) * | 2017-11-07 | 2019-10-15 | 浙江大学 | A kind of preparation method of Ni-Mn-Ga suitable shape memory alloy micrometer fibers |
| CN109023163A (en) * | 2018-09-04 | 2018-12-18 | 国创智能设备制造股份有限公司 | A kind of cobalt base amorphous alloy wire and preparation method thereof |
| CN112059131B (en) * | 2020-09-16 | 2022-03-25 | 浙江师范大学 | Non-winding high-efficiency amorphous thin belt preparation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090107590A1 (en) * | 2005-12-27 | 2009-04-30 | Global Micro Wire Technologies, Ltd. | Soft magnetic alloy for microwire casting |
| CN101532117A (en) * | 2008-03-12 | 2009-09-16 | 中国科学院金属研究所 | Continuous metallic glass fiber and preparing method thereof |
| CN101956148A (en) * | 2010-10-22 | 2011-01-26 | 无锡南理工科技发展有限公司 | Dual composite high strength and toughness block amorphous alloy and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090107590A1 (en) * | 2005-12-27 | 2009-04-30 | Global Micro Wire Technologies, Ltd. | Soft magnetic alloy for microwire casting |
| CN101532117A (en) * | 2008-03-12 | 2009-09-16 | 中国科学院金属研究所 | Continuous metallic glass fiber and preparing method thereof |
| CN101956148A (en) * | 2010-10-22 | 2011-01-26 | 无锡南理工科技发展有限公司 | Dual composite high strength and toughness block amorphous alloy and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 王成铎,张志豪,谢建新.玻璃包覆Fe 79 - x Co x Si 8 B 13 非晶合金微丝的磁性能.《功能材料与器件学报》.2009,第15卷(第5期),452-458. |
| 王成铎,张志豪,谢建新.玻璃包覆Fe 79- x Co x Si 8 B 13 非晶合金微丝的磁性能.《功能材料与器件学报》.2009,第15卷(第5期),452-458. * |
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