CN101502873A - Copper mold suction casting preparation device of iron-based bulk amorphous alloy annular magnet core and method thereof - Google Patents
Copper mold suction casting preparation device of iron-based bulk amorphous alloy annular magnet core and method thereof Download PDFInfo
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- CN101502873A CN101502873A CNA2009100378989A CN200910037898A CN101502873A CN 101502873 A CN101502873 A CN 101502873A CN A2009100378989 A CNA2009100378989 A CN A2009100378989A CN 200910037898 A CN200910037898 A CN 200910037898A CN 101502873 A CN101502873 A CN 101502873A
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Abstract
The invention provides a copper mould suction casting preparation device of an iron-based bulk amorphous alloy toroidal magnetic core and a method therefore. The preparation device of the invention comprises an electrode, a furnace chamber, copper crucibles, a copper mould, a mould core, a mould cavity, a suction casting pipe and a water cooling device. A plurality of copper crucibles are arranged in the furnace cavity, wherein, at least one copper crucible is used for suction casting, and the residues are used for melting. The electrode penetrates the furnace chamber and extends into the copper crucibles used for melting in the furnace cavity. Iron-based bulk amorphous alloy raw materials which are prepared according to the content requirement and are provided with soft magnet are put in the copper crucibles used for melting. The copper crucibles used for suction casting are provided with the water cooling device at the lower parts. The copper mould is arranged in the water cooling device. The mould cavity is internally provided with the mould cavity which is communicated with the copper crucible used for suction casting. The mould core is arranged in the mould cavity. The suction casting pipe which can suck alloy liquid in the copper crucible used for suction casting into the mould cavity with the mould core is arranged outside the mould cavity. The preparation device has the advantages of simple structure and convenient operation. The preparation method of the invention has the advantages of high preparation efficiency and simple processing conditions and can be carried out easily under the industrial production condition.
Description
Technical field
The present invention is a kind of copper mold preparation facilities and method thereof of iron-base block amorphous alloy toroidal core, belongs to the copper mold preparation facilities of iron-base block amorphous alloy toroidal core and the renovation technique of method thereof.
Background technology
There is not magnetocrystalline anisotropy in amorphous alloy owing to its disordered structure, thereby is easy to magnetization; And do not have crystal defects such as dislocation, crystal boundary, so magnetic conductivity, saturation induction density height; Coercivity is low, loss is little, is desirable soft magnetic materials.How small-sized magnetic devices such as the transformer of using in circuit on the existing market, circuit point cutting edge of a knife or a sword TVS are made with metal soft magnetic material such as silicon steel and soft magnetic ferrites, and its core loss is big.If make of amorphous band, band coiled miniature toroidal magnetic device difficulty is bigger on the one hand, and used volume will multiply by 0.8 lamination coefficient when calculating its performance parameter on the other hand, is unfavorable for the development trend of circuit miniaturization.
Summary of the invention
The objective of the invention is to consider the problems referred to above and provide a kind of simple in structure, the copper mold preparation facilities of easy to operate iron-base block amorphous alloy toroidal core.
Another object of the present invention is to provide a kind of preparation efficiency height, and process conditions are simple, easily the preparation method of the copper mold preparation facilities of the iron-base block amorphous alloy toroidal core of under the industrial production condition, implementing.
Technical scheme of the present invention is: the copper mold preparation facilities of iron-base block amorphous alloy toroidal core of the present invention, include electrode, furnace chamber, copper crucible, copper mold, core, die cavity, inhale cast tube, water cooling plant, be provided with several copper crucibles in the furnace chamber, wherein at least one copper crucible is for inhaling the casting copper crucible, all the other are the melting copper crucible, electrode passes furnace shell and puts in the interior melting of furnace chamber with in the copper crucible, melting is with putting into the iron-base block amorphous alloy raw material that soft magnetism is arranged for preparing by the composition requirement in the copper crucible, inhale the bottom that casts with copper crucible and be provided with water cooling plant, and be provided with copper mold in the water cooling plant, be provided with in the copper mold and inhale the die cavity that casting communicates with copper crucible, be provided with core in the die cavity, die cavity is provided with outward and can be drawn into suction cast tube in the die cavity that has core with the alloy liquid in the copper crucible with inhaling casting.
Above-mentioned furnace chamber is the vacuum arc furnace ignition furnace chamber.
Above-mentioned core is made with graphite material.
The preparation method of the copper mold preparation facilities of iron-base block amorphous alloy toroidal core of the present invention, it comprises following concrete steps:
1) selects the iron-base block amorphous alloy that soft magnetism is specifically arranged for use, prepare raw material, place the melting copper crucible of furnace chamber by the composition requirement;
2) then furnace chamber is vacuumized, charge into inert gas to atmospheric pressure such as argon gas after reaching certain vacuum, molten alloy becomes foundry alloy 3～5 times under inert gas shielding;
3) then foundry alloy is moved to the suction casting and be drawn in the die cavity that has core after being fused into liquid in the copper crucible once more, and cool off fast by water cooling plant, obtain the block amorphous alloy rod, the inner chamber of die cavity forms the external diameter of magnetic core, and core forms the internal diameter of magnetic core;
4) take out copper mold, copper mold in two, obtain block amorphous alloy rod with graphite core;
5) with wire cutting machine cutting non-crystaline amorphous metal rod, obtain required height dimension, remove core graphite, promptly obtain required block amorphous alloy toroidal core.
Above-mentioned steps 5) the toroidal core surface that obtains coils after insulation is handled, and has promptly made small inductance or circuit point cutting edge of a knife or a sword TVS.
The present invention is owing to adopt the iron-base block amorphous alloy that soft magnetism will be arranged; prepare raw material by the composition requirement; with vacuum arc furnace ignition alloy smelting repeatedly under inert gas shielding; inhale then and cast onto in the water cooled copper mould that has core; directly obtain the structure of iron-base block amorphous alloy toroidal core; adopt the iron-base block amorphous alloy toroidal core of the present invention's preparation; inside and outside footpath is casting directly; the warp cutting obtains required height dimension, has solved the problem that has occupation efficiency with the amorphous ribbon coiling.Prepare the iron-base block amorphous alloy toroidal core with the water-cooled copper mold casting, this toroidal core magnetic conductivity, saturation induction density height, coercivity is low, loss is little.Preparation method of the present invention utilizes the advantage of pollution-free, the good uniformity of electric arc melting alloy, utilized suction casting technology melt to fill that type is good, the fast cooling strong point of copper mold again, the melting of alloy, fill type, process of setting and in vacuum chamber, finish by once vacuumizing, ingress of air and outside contamination have been avoided, the preparation efficiency height, and process conditions are simple, implement under the industrial production condition easily, can be widely used in fields such as miniature transformer, circuit point cutting edge of a knife or a sword TVS.The present invention is that a kind of design is ingenious, function admirable, the copper mold preparation facilities and the method thereof of convenient and practical iron-base block amorphous alloy toroidal core.
Description of drawings
Fig. 1 is the structural representation of the copper mold preparation facilities of iron-base block amorphous alloy toroidal core of the present invention;
The block amorphous alloy toroidal core that Fig. 2 makes for the present invention is used as the circuit diagram of circuit point cutting edge of a knife or a sword TVS.
The specific embodiment
Embodiment:
The structural representation of the copper mold preparation facilities of iron-base block amorphous alloy toroidal core of the present invention as shown in Figure 1, include electrode 1, furnace chamber 2, copper crucible 3, copper mold 4, core 5, die cavity 6, inhale cast tube 7, water cooling plant 8, be provided with several copper crucibles 3 in the furnace chamber 2, wherein at least one copper crucible 3 is for inhaling the casting copper crucible, all the other are the melting copper crucible, electrode 1 passes furnace shell and puts in meltings in the furnace chamber 2 with in the copper crucible 3, melting is with putting into the iron-base block amorphous alloy raw material that soft magnetism is arranged for preparing by the composition requirement in the copper crucible 3, inhale the bottom that casts with copper crucible (3) and be provided with water cooling plant 8, and be provided with copper mold 4 in the water cooling plant 8, be provided with in the copper mold 4 and inhale the die cavity 6 that casting communicates with copper crucible 3, be provided with core 5 in the die cavity 6, die cavity 6 is outer to be provided with and can be drawn into suction cast tube 7 in the die cavity 6 that has core 5 with the alloy liquid in the copper crucible 3 with inhaling casting.
Above-mentioned furnace chamber 2 is the vacuum arc furnace ignition furnace chamber.
Above-mentioned core 5 usefulness graphite materials are made.
The preparation method of the copper mold preparation facilities of iron-base block amorphous alloy toroidal core of the present invention, it comprises following concrete steps:
1) selects the iron-base block amorphous alloy that soft magnetism is specifically arranged for use, prepare raw material, place the melting copper crucible 3 of furnace chamber 2 by the composition requirement;
2) then furnace chamber 2 is vacuumized, charge into inert gas to atmospheric pressure such as argon gas after reaching certain vacuum, molten alloy becomes foundry alloy 3～5 times under inert gas shielding;
3) then foundry alloy being moved to the suction casting is drawn in the die cavity 6 that has core 5 after being fused into liquid in the copper crucible 3 once more, and pass through water cooling plant 8 and cool off fast, obtain the block amorphous alloy rod, the inner chamber of die cavity 6 forms the external diameter of magnetic core, and core 5 forms the internal diameter of magnetic core;
4) take out copper mold 4, copper mold 4 in two, obtain block amorphous alloy rod with graphite core;
5) with wire cutting machine cutting non-crystaline amorphous metal rod, obtain required height dimension, remove core graphite, promptly obtain required block amorphous alloy toroidal core.
Above-mentioned steps 5) the toroidal core surface that obtains coils after insulation is handled, and has promptly made small inductance or circuit point cutting edge of a knife or a sword TVS.The block amorphous alloy toroidal core that Fig. 2 makes for the present invention is used as the circuit diagram of circuit point cutting edge of a knife or a sword TVS 9, if before two diodes 10, do not connect sharp cutting edge of a knife or a sword TVS 9, when the frequency height of rectification circuit behind certain value, because the anti-phase restitution of commutation diode 10, reverse sharp cutting edge of a knife or a sword can appear in output waveform.After connecting the sharp cutting edge of a knife or a sword TVS 9 that this invention does, because the non-crystaline amorphous metal magnetic core has saturation induction density height, magnetic conductivity height, coercivity is low and inductance is big, electric current (comprising direction and size) when occurring when sudden change, point cutting edge of a knife or a sword TVS 9 has the obvious suppression effect, reduces the peak value sudden change that commutation diode 10 anti-phase recoveries are caused.
Claims (5)
1, a kind of copper mold preparation facilities of iron-base block amorphous alloy toroidal core, it is characterized in that including electrode (1), furnace chamber (2), copper crucible (3), copper mold (4), core (5), die cavity (6), inhale cast tube (7), water cooling plant (8), be provided with several copper crucibles (3) in the furnace chamber (2), wherein at least one copper crucible (3) is for inhaling the casting copper crucible, all the other are the melting copper crucible, electrode (1) passes furnace shell and puts in the interior melting of furnace chamber (2) with in the copper crucible (3), melting is with putting into the iron-base block amorphous alloy raw material that soft magnetism is arranged for preparing by the composition requirement in the copper crucible (3), inhale the bottom that casts with copper crucible (3) and be provided with water cooling plant (8), and be provided with copper mold (4) in the water cooling plant (8), be provided with in the copper mold (4) and inhale the die cavity (6) that casting communicates with copper crucible (3), be provided with core (5) in the die cavity (6), die cavity (6) is outer to be provided with and can be drawn into suction cast tube (7) in the die cavity (6) that has core (5) with the alloy liquid in the copper crucible (3) with inhaling casting.
2, the copper mold preparation facilities of iron-base block amorphous alloy toroidal core according to claim 1 is characterized in that above-mentioned furnace chamber (2) is the vacuum arc furnace ignition furnace chamber.
3, the copper mold preparation facilities of iron-base block amorphous alloy toroidal core according to claim 1 is characterized in that above-mentioned core (5) makes with graphite material.
4, a kind of preparation method of copper mold preparation facilities of iron-base block amorphous alloy toroidal core according to claim 1 is characterized in that comprising following concrete steps:
1) selects the iron-base block amorphous alloy that soft magnetism is specifically arranged for use, prepare raw material, place the melting copper crucible (3) of furnace chamber (2) by the composition requirement;
2) then furnace chamber (2) is vacuumized, charge into inert gas to atmospheric pressure such as argon gas after reaching certain vacuum, molten alloy becomes foundry alloy 3～5 times under inert gas shielding;
3) then foundry alloy being moved to the suction casting is drawn in the die cavity (6) that has core (5) after being fused into liquid in the copper crucible (3) once more, and by water cooling plant (8) cooling fast, obtain the block amorphous alloy rod, the inner chamber of die cavity (6) forms the external diameter of magnetic core, and core (5) forms the internal diameter of magnetic core;
4) take out copper mold (4), copper mold (4) in two, obtain block amorphous alloy rod with graphite core;
5) with wire cutting machine cutting non-crystaline amorphous metal rod, obtain required height dimension, remove core graphite, promptly obtain required block amorphous alloy toroidal core.
5, the preparation method of the copper mold preparation facilities of iron-base block amorphous alloy toroidal core according to claim 4, it is characterized in that above-mentioned steps 5) the toroidal core surface that obtains is after insulation is handled, coil, promptly made small inductance or circuit point cutting edge of a knife or a sword TVS.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100378989A CN101502873A (en) | 2009-03-13 | 2009-03-13 | Copper mold suction casting preparation device of iron-based bulk amorphous alloy annular magnet core and method thereof |
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| CNA2009100378989A CN101502873A (en) | 2009-03-13 | 2009-03-13 | Copper mold suction casting preparation device of iron-based bulk amorphous alloy annular magnet core and method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774009B (en) * | 2010-01-21 | 2011-08-03 | 哈尔滨工业大学 | Device and method for shaping amorphous alloy thin-wall slim pipe |
| CN103008614A (en) * | 2012-12-18 | 2013-04-03 | 广东工业大学 | Copper mould for preparing bulk amorphous alloy and manufacture method of copper mould |
| CN103632836A (en) * | 2013-12-04 | 2014-03-12 | 中国矿业大学 | Preparation method for metallic glass magnetic core |
| CN104190900A (en) * | 2014-09-02 | 2014-12-10 | 哈尔滨工业大学 | Method for casting and forming TiAl-based alloy vent valve |
| CN106756645A (en) * | 2017-02-28 | 2017-05-31 | 深圳市锆安材料科技有限公司 | A kind of inexpensive Fe-based amorphous alloy part preparation technology and Fe-based amorphous alloy part |
| CN107052305A (en) * | 2017-04-05 | 2017-08-18 | 广东工业大学 | A kind of vacuum suction casting technique prepares copper mold of bulk amorphous alloys and preparation method thereof |
| CN108372278A (en) * | 2018-04-02 | 2018-08-07 | 广东劲胜智能集团股份有限公司 | The preparation method and device of the alloy pipe of controllable diameter and wall thickness |
| CN108687314A (en) * | 2018-05-02 | 2018-10-23 | 西安理工大学 | A kind of electric arc melting droplet casting water cooling assembling die |
| CN111438346A (en) * | 2019-01-17 | 2020-07-24 | 兰州交通大学 | High-entropy amorphous alloy suction casting die |
| CN111922318A (en) * | 2020-08-05 | 2020-11-13 | 兰州理工大学 | Near-net forming die for zirconium-based amorphous flexible gear and preparation method thereof |
| CN111974967A (en) * | 2019-05-21 | 2020-11-24 | 兰州交通大学 | Liquid nitrogen cooled crystalline and amorphous high-entropy alloy suction casting die |
| CN113751698A (en) * | 2020-06-02 | 2021-12-07 | 兰州交通大学 | Water-cooled (non-) crystalline state high-entropy alloy suction casting die |
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2009
- 2009-03-13 CN CNA2009100378989A patent/CN101502873A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774009B (en) * | 2010-01-21 | 2011-08-03 | 哈尔滨工业大学 | Device and method for shaping amorphous alloy thin-wall slim pipe |
| CN103008614A (en) * | 2012-12-18 | 2013-04-03 | 广东工业大学 | Copper mould for preparing bulk amorphous alloy and manufacture method of copper mould |
| CN103008614B (en) * | 2012-12-18 | 2015-11-18 | 广东工业大学 | A kind of for the preparation of the copper mold of bulk amorphous alloys and the preparation method of copper mold |
| CN103632836A (en) * | 2013-12-04 | 2014-03-12 | 中国矿业大学 | Preparation method for metallic glass magnetic core |
| CN103632836B (en) * | 2013-12-04 | 2015-11-04 | 中国矿业大学 | The preparation method of Metglas core |
| CN104190900A (en) * | 2014-09-02 | 2014-12-10 | 哈尔滨工业大学 | Method for casting and forming TiAl-based alloy vent valve |
| CN106756645B (en) * | 2017-02-28 | 2018-07-24 | 深圳市锆安材料科技有限公司 | A kind of low cost Fe-based amorphous alloy part preparation process and Fe-based amorphous alloy part |
| CN106756645A (en) * | 2017-02-28 | 2017-05-31 | 深圳市锆安材料科技有限公司 | A kind of inexpensive Fe-based amorphous alloy part preparation technology and Fe-based amorphous alloy part |
| CN107052305A (en) * | 2017-04-05 | 2017-08-18 | 广东工业大学 | A kind of vacuum suction casting technique prepares copper mold of bulk amorphous alloys and preparation method thereof |
| CN107052305B (en) * | 2017-04-05 | 2023-02-10 | 广东工业大学 | Copper mold for preparing bulk amorphous alloy by vacuum suction casting method and preparation method thereof |
| CN108372278A (en) * | 2018-04-02 | 2018-08-07 | 广东劲胜智能集团股份有限公司 | The preparation method and device of the alloy pipe of controllable diameter and wall thickness |
| CN108687314A (en) * | 2018-05-02 | 2018-10-23 | 西安理工大学 | A kind of electric arc melting droplet casting water cooling assembling die |
| CN108687314B (en) * | 2018-05-02 | 2020-11-17 | 西安理工大学 | Water-cooling combined die for electric arc melting and drop casting |
| CN111438346A (en) * | 2019-01-17 | 2020-07-24 | 兰州交通大学 | High-entropy amorphous alloy suction casting die |
| CN111974967A (en) * | 2019-05-21 | 2020-11-24 | 兰州交通大学 | Liquid nitrogen cooled crystalline and amorphous high-entropy alloy suction casting die |
| CN113751698A (en) * | 2020-06-02 | 2021-12-07 | 兰州交通大学 | Water-cooled (non-) crystalline state high-entropy alloy suction casting die |
| CN111922318A (en) * | 2020-08-05 | 2020-11-13 | 兰州理工大学 | Near-net forming die for zirconium-based amorphous flexible gear and preparation method thereof |
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Open date: 20090812 |