CN103418764A - Cooling roller device for producing amorphous nanocrystalline soft magnetic material - Google Patents
Cooling roller device for producing amorphous nanocrystalline soft magnetic material Download PDFInfo
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- CN103418764A CN103418764A CN2013103241522A CN201310324152A CN103418764A CN 103418764 A CN103418764 A CN 103418764A CN 2013103241522 A CN2013103241522 A CN 2013103241522A CN 201310324152 A CN201310324152 A CN 201310324152A CN 103418764 A CN103418764 A CN 103418764A
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Abstract
The invention discloses a cooling roller device for producing amorphous nanocrystalline soft magnetic material. The cooling roller device mainly comprises a roller substrate, a roller sleeve, a first cover plate, a main shaft and a second cover plate. The roller substrate is arranged on the main shaft, the outer circle side of the roller substrate is provided with the roller sleeve, the two cover plates are arranged on the two sides of the roller substrate respectively and connected through the roller sleeve, and the peripheral edge of each cover plate is provided with a bulge loop matched with the roller sleeve. An annular boss is arranged in the central area of the outer circle of the roller substrate, spiral water channels are distributed in the central area of the inner surface of the roller sleeve, the end face of each spiral water channel is attached to the outer circle face of the boss of the roller substrate to form a spiral cooling water flowing channel, and a left symmetrical step-shaped annular cooling water flowing channel and a right symmetrical step-shaped annular cooling water flowing channel at equal intervals are formed by the outer side of the inner surface of the roller sleeve, the two cover plates and the outer circle face of the roller substrate in a defined mode. The arrangement of the water channel structures of the cooling roller is beneficial to achieving homogenization of temperature field distribution in the contact area of the roller sleeve and amorphous strips, so that a series of defects generated by uneven cooling of amorphous broad strip products are overcome.
Description
Technical field
The present invention relates to materials processing and heat transfer technology field, relate in particular to a kind of cooling roller device of producing amorphous nanocrystalline soft magnetic material.
Technical background
Non-crystaline amorphous metal is develop in the world in recent decades very popular and have one of new material of strategic meaning.On industrial production, the single roller rotation of many employings insufflation prepares amorphous band at present.The process that single-roller method prepares amorphous thin ribbon specifically is presented below: foundry alloy is heat fused in increasing misfortune, (Tm is melting point metal to reach certain degree of superheat Tm+ △ T, △ T is the degree of superheat) after be filled with hydrogen or nitrogen, when nozzle exit pressure is greater than slit to the surface tension of molten alloy, motlten metal just sprays by nozzle, gap between warp and roll surface, arrive atwirl roll surface and form weld pool, the motlten metal weld pool is pulled the formation metal sheet band by the running roller of High Rotation Speed, the cooling water that heat is flowed through roller shell is taken away, strip is cooling rapidly on roll surface, and by the effect of centrifugal force by the roll surface of dishing out, pull, cooling carrying out continuously until the flow of molten metal clamped in pot is complete.
Hence one can see that, and this production technology is strict to the chill roll surface temperature, because roll surface directly contacts with motlten metal, determining cooling velocity and the Forming Quality of metal.Generally, the heat discharged when motlten metal solidifies can not be in time reaches the inner surface water that then is cooled by cooling roller shell outer surface to be taken away, and will cause the roller shell surface temperature to raise, and the cooling velocity of molten metal descends, and finally can not get amorphous structure; In addition, due to the heat transfer condition of cooling roller shell central area and borderline region different (conducting heat and be better than central area in border), (temperature is the highest at central point along the skewness of bandwidth direction to make the roller shell surface temperature, and the formation temperature gradient that progressively descends along both sides), then correspondingly cause strip to produce the series of process defect because inhomogeneous cooling is even.
Therefore, optimize the chill roll structure, the adjusting process parameter, within the chill-roll temperature field is controlled to uniform temperature value and certain thermograde, have very important significance to obtaining the high-quality amorphous alloy band.
At present, amorphous ribbon production is how to improve the cooling capacity of chill roll more by the structural design purpose of chill roll water channel.Wherein, the spirality channel of Chinese patent CN 1552543A design has utilized it can improve the characteristics of cooling water flow velocity, is only in order to improve the cooling capacity of chill roll.Although Chinese patent CN 102133619 A have recognized the inhomogeneous cooling problem of copper roller, it is by changing the flow direction of water channel, i.e. middle water inlet both sides water outlet improves.It thinks that the reason that causes inhomogeneous cooling is the temperature rise of cooling water, if first cooling copper roller middle part can prevent the inhomogeneous cooling problem of copper roller in cooling border again.This is to shirk the heavy work and choose the light in fact, because the temperature rise of cooling water can't cause the convection transfer rate of roller shell lower surface that obvious difference is arranged, and the amplitude of temperature rise can be dwindled by suitable raising discharge in fact.
Summary of the invention
The purpose of this invention is to provide a kind of cooling roller device of producing amorphous nanocrystalline soft magnetic material.Cooling channel structure by the appropriate design chill roll, the zone that makes roller shell contact with amorphous band is along on its roller cross direction, reaching equalizing temperature, thus improve the Amorphous Wide Ribbon goods because inhomogeneous cooling is even, produce the both sides warpage even zone line organize the defect of crystallization.
The cooling roller device of producing amorphous nanocrystalline soft magnetic material mainly comprises: the roller matrix, roller shell, the first cover plate, main shaft and the second cover plate, main shaft is provided with the roller matrix, roller matrix cylindrical side is provided with roller shell, roller matrix both sides are respectively equipped with the first cover plate, the second cover plate, the first cover plate and the second cover plate are symmetrical structure, and be connected by roller shell, the first cover plate and the second cover plate neighboring are provided with the bulge loop matched with roller shell, roller matrix cylindrical central area is provided with annular boss, roller shell inner surface central area is placed with the spirality tank, the boss periphery laminating of spirality tank end face and roller matrix forms spirality flow of cooling water passage, the roller shell inner surface outside and the first cover plate, the second cover plate and roller matrix periphery surround the equidistant flow of cooling water passage of the stepped annular in a symmetrical left side jointly, the equidistant flow of cooling water passage of right stepped annular, two the equidistant flow of cooling water passages of stepped annular in left and right are connected by spirality flow of cooling water passage, the first cover plate and the second cover plate and roller matrix dual-side form respectively radially flow of cooling water passage and right side flow of cooling water passage radially of a left side, the main shaft hollow of roller matrix both sides is respectively water inlet and delivery port, on the main shaft sidewall of roller matrix both sides, be respectively equipped with into the mobile duct of water and the mobile duct of water outlet, water inlet, the mobile duct of water inlet, a left side is the flow of cooling water passage radially, the equidistant flow of cooling water passage of left stepped annular, spirality flow of cooling water passage, the equidistant flow of cooling water passage of right stepped annular, the right side is the flow of cooling water passage radially, the water outlet duct of flowing, delivery port is connected in turn.
The 85%-95% that interval L between described the first cover plate bulge loop end face and the second cover plate bulge loop end face is amorphous band width W to be processed.The thickness D of described the first cover plate bulge loop and the second cover plate bulge loop is 15mm～30mm.Length L on described spirality flow of cooling water passage is axial along roller shell ' be 55%～65% of amorphous band width W to be processed.
The present invention is creatively by the cooling water channel of two kinds of different cooling capacities---and water annulus and spiral channel carry out reasonable combination, form the Compound cooling passage, so, the central area of band is in the cooling condition of the high strength of trough shaped passage, and the common cooling condition of border in circular passage, thereby the hot-fluid of band being passed to roller shell is redistributed, finally realize the homogenising of roller shell temperature.In addition, this device still adopts an end water inlet one to bring out the cooling system of water, without expending material resources conversion unit again.
The accompanying drawing explanation
Fig. 1 is for producing the cooling roller device structural representation of amorphous nanocrystalline soft magnetic material;
Fig. 2 is Fig. 1 partial structurtes enlarged drawings;
The special size that Fig. 3 is cooling roller device of the present invention requires schematic diagram;
In figure, roller matrix 1, roller shell 2, the first cover plate 3, main shaft 4, water inlet 5, delivery port 6, the second cover plate 7, left side flow, and radially radially duct 13, amorphous band to be processed 14 flow flow of cooling water passage 12, right side flow of cooling water passage 9, left stepped annular cooling water flow channel 10, right stepped annular cooling water flow channel 10 ', spirality flow of cooling water passage 11, the right side for duct 8, a left side.
The specific embodiment
Improving the problem of copper roller inhomogeneous cooling need start with from heat transfer mechanism: the cooling water that the heat that band discharges is finally flowed by way of the copper roll sleeve is taken away.If by traditional cooling roll structure setting, be that cooling duct is along having identical radiating efficiency on the roller cross direction, in this diabatic process, the characteristic distributions of hot-fluid in the copper roll sleeve is that the hot-fluid of central area is one dimensional flow, the hot-fluid of borderline region is two-dimensional flow, conduct heat and be better than central area in border, corresponding roller shell upper surface zone line temperature can be apparently higher than border naturally.Thereby the effective way of improving the copper sheathing inhomogeneous cooling is by cooling duct rationally is set, improve the intensity of cooling at roller shell center and suitably weaken the intensity of cooling on border, allow the hot-fluid redistribution, to reach as far as possible equalizing temperature.
With reference to the accompanying drawings 1, Fig. 2, Fig. 3 describe in further detail cooling roller shell of the present invention.
The cooling roller device of producing amorphous nanocrystalline soft magnetic material mainly comprises: roller matrix 1, roller shell 2, the first cover plate 3, main shaft 4 and the second cover plate 7, main shaft 4 is provided with roller matrix 1, roller matrix 1 cylindrical side is provided with roller shell 2, roller matrix 1 both sides are respectively equipped with the first cover plate 3, the second cover plate 7, the first cover plate 3 and the second cover plate 7 are symmetrical structure, and be connected by roller shell 2, the first cover plate 3 and the second cover plate 7 neighborings are provided with the bulge loop matched with roller shell 2, roller matrix 1 cylindrical central area is provided with annular boss, roller shell 2 inner surface central areas are placed with the spirality tank, the boss periphery laminating of spirality tank end face and roller matrix 1 forms spirality flow of cooling water passage 11, the roller shell 2 inner surface outsides and the first cover plate 3, the second cover plate 7 and roller matrix 1 periphery surround the equidistant flow of cooling water path 10 of the stepped annular in a symmetrical left side jointly, the equidistant flow of cooling water path 10 of right stepped annular ', two the equidistant flow of cooling water passages of stepped annular in left and right are connected by spirality flow of cooling water passage 11, the first cover plate 3 and the second cover plate 7 and roller matrix 1 dual-side form respectively radially flow of cooling water passage 9 and right side flow of cooling water passage 12 radially of a left side, the main shaft hollow of roller matrix 1 both sides is respectively water inlet 5 and delivery port 6, on the main shaft sidewall of roller matrix 1 both sides, be respectively equipped with into the mobile duct 8 of water and the mobile duct 13 of water outlet, water inlet 5, the mobile duct 8 of water inlet, a left side is flow of cooling water passage 9 radially, the equidistant flow of cooling water path 10 of left stepped annular, spirality flow of cooling water passage 11, the equidistant flow of cooling water path 10 of right stepped annular ', the right side is flow of cooling water passage 12 radially, the water outlet duct 13 of flowing, delivery port 6 is connected in turn.
The 85%-95% that interval L between described the first cover plate 3 bulge loop end faces and the second cover plate 7 bulge loop end faces is amorphous band 14 width W to be processed.The thickness D of described the first cover plate 3 bulge loops and the second cover plate 7 bulge loops is 15mm～30mm.Length L on described spirality flow of cooling water path 10 is axial along roller shell 2 ' be 55%～65% of amorphous band 14 width W to be processed.The material of described roller shell 2 is copper alloy, and the material of the first cover plate 3 and the second cover plate 7 is structural steel.
The course of work of the present invention is as follows:
Roller matrix 1, roller shell 2, the first cover plate 3 and the second cover plate 7 are done high speed rotary motion under the drive of main shaft 4, and the outer surface that constantly has high-temperature molten metal liquid to be injected in roller shell 2 in this process is cooled to the amorphous band 12 that width is W then.For guaranteeing the efficient radiating efficiency of chill roll, the cooling water that need the water inlet 5 from main shaft 4 passes into certain flow, cooling water enters a left side radially flow of cooling water passage 9 and left stepped annular cooling water flow channel 10 through mobile duct 8, left side, then because overflow section sharply reduces to accelerate the spirality flow of cooling water passage 11 by center, pass through again afterwards the stepped annular flow passage 10 ' in the right side with stepped annular flow passage 10 symmetries in a left side, enter the radially mobile duct 13 of flow of cooling water passage 12 and right side, the right side, finally flow out from delivery port 6.
Claims (4)
1. a cooling roller device of producing amorphous nanocrystalline soft magnetic material, it is characterized in that, cooling roller device mainly comprises: roller matrix (1), roller shell (2), the first cover plate (3), main shaft (4) and the second cover plate (7), main shaft (4) is provided with roller matrix (1), roller matrix (1) cylindrical side is provided with roller shell (2), roller matrix (1) both sides are respectively equipped with the first cover plate (3), the second cover plate (7), the first cover plate (3) and the second cover plate (7) are symmetrical structure, and be connected by roller shell (2), the first cover plate (3) and the second cover plate (7) neighboring are provided with the bulge loop matched with roller shell (2), roller matrix (1) cylindrical central area is provided with annular boss, roller shell (2) inner surface central area is placed with the spirality tank, the boss periphery laminating of spirality tank end face and roller matrix (1) forms spirality flow of cooling water passage (11), roller shell (2) the inner surface outside and the first cover plate (3), the second cover plate (7) and roller matrix (1) periphery surround the equidistant flow of cooling water passage of the stepped annular in a symmetrical left side (10) jointly, the right equidistant flow of cooling water passage of stepped annular (10 '), two the equidistant flow of cooling water passages of stepped annular in left and right are connected by spirality flow of cooling water passage (11), the first cover plate (3) and the second cover plate (7) and roller matrix (1) dual-side form respectively radially flow of cooling water passage (9) and right side flow of cooling water passage (12) radially of a left side, the main shaft hollow of roller matrix (1) both sides is respectively water inlet (5) and delivery port (6), on the main shaft sidewall of roller matrix (1) both sides, be respectively equipped with into the mobile duct (8) of water and the mobile duct (13) of water outlet, water inlet (5), the mobile duct (8) of water inlet, a left side is flow of cooling water passage (9) radially, the left equidistant flow of cooling water passage of stepped annular (10), spirality flow of cooling water passage (11), the right equidistant flow of cooling water passage of stepped annular (10 '), the right side is flow of cooling water passage (12) radially, the water outlet duct (13) of flowing, delivery port (6) is connected in turn.
2. a kind of cooling roller device of producing amorphous nanocrystalline soft magnetic material according to claim 1, it is characterized in that the 85%-95% that the interval L between described the first cover plate (3) bulge loop end face and the second cover plate (7) bulge loop end face is amorphous band to be processed (14) width W.
3. a kind of cooling roller device of producing amorphous nanocrystalline soft magnetic material according to claim 1, is characterized in that, the thickness D of described the first cover plate (3) bulge loop and the second cover plate (7) bulge loop is 15mm～30mm.
4. a kind of cooling roller device of producing amorphous nanocrystalline soft magnetic material according to claim 1, it is characterized in that the length L on described spirality flow of cooling water passage (11) is axial along roller shell (2) ' be 55%～65% of amorphous band to be processed (14) width W.
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| CN201310324152.2A CN103418764B (en) | 2013-07-30 | 2013-07-30 | Cooling roller device for producing amorphous nanocrystalline soft magnetic material |
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| CN201310324152.2A CN103418764B (en) | 2013-07-30 | 2013-07-30 | Cooling roller device for producing amorphous nanocrystalline soft magnetic material |
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| CN103418764B CN103418764B (en) | 2015-04-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639379A (en) * | 2013-12-30 | 2014-03-19 | 青岛云路新能源科技有限公司 | Crystallizer for preparing nano-crystalline ultrathin strip |
| CN106825468A (en) * | 2017-04-16 | 2017-06-13 | 广州蓝磁新材料科技有限公司 | A kind of crystallization chill roll for preparing magnetically soft alloy thin slice |
| CN107081410A (en) * | 2017-04-25 | 2017-08-22 | 王宇 | One kind rotation chill roll and its cooling means |
| CN107127307A (en) * | 2017-06-22 | 2017-09-05 | 广东合新材料研究院有限公司 | The very fast samming cooler prepared for amorphous |
| CN113967726A (en) * | 2021-10-25 | 2022-01-25 | 领胜城科技（江苏）有限公司 | Cooling roll for nanocrystalline belt manufacturing with adjustable cooling ring surface |
| CN114789239A (en) * | 2022-05-31 | 2022-07-26 | 无锡诚材科技有限公司 | Nanocrystalline crystallizer with circumferential grooves |
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| JPS58135751A (en) * | 1982-02-05 | 1983-08-12 | Nippon Steel Corp | Cooling method of roll for quick cooling of thin amorphous metallic strip |
| JPS5942160A (en) * | 1982-09-02 | 1984-03-08 | Nippon Steel Corp | Cooling roll for producing amorphous alloy light-gauge strip |
| CN1552543A (en) * | 2003-12-18 | 2004-12-08 | 安泰科技股份有限公司 | Rotary cooling roller and cooling method thereof |
| CN102133619A (en) * | 2011-01-18 | 2011-07-27 | 烟台万隆真空冶金有限公司 | Cooling roller device for amorphous tape machine |
| CN202367173U (en) * | 2011-12-23 | 2012-08-08 | 烟台万隆真空冶金有限公司 | Strip-casting copper roller for strip-casting machine |
| CN202741705U (en) * | 2012-08-24 | 2013-02-20 | 浙江正耀环保科技有限公司 | Main shaft copper roller cooling device for amorphous ribbon spraying machine |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS58135751A (en) * | 1982-02-05 | 1983-08-12 | Nippon Steel Corp | Cooling method of roll for quick cooling of thin amorphous metallic strip |
| JPS5942160A (en) * | 1982-09-02 | 1984-03-08 | Nippon Steel Corp | Cooling roll for producing amorphous alloy light-gauge strip |
| CN1552543A (en) * | 2003-12-18 | 2004-12-08 | 安泰科技股份有限公司 | Rotary cooling roller and cooling method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639379A (en) * | 2013-12-30 | 2014-03-19 | 青岛云路新能源科技有限公司 | Crystallizer for preparing nano-crystalline ultrathin strip |
| CN103639379B (en) * | 2013-12-30 | 2016-11-09 | 青岛云路先进材料技术有限公司 | A kind of crystallizer of nanocrystalline ultra-thin system band |
| CN106825468A (en) * | 2017-04-16 | 2017-06-13 | 广州蓝磁新材料科技有限公司 | A kind of crystallization chill roll for preparing magnetically soft alloy thin slice |
| CN107081410A (en) * | 2017-04-25 | 2017-08-22 | 王宇 | One kind rotation chill roll and its cooling means |
| CN107127307A (en) * | 2017-06-22 | 2017-09-05 | 广东合新材料研究院有限公司 | The very fast samming cooler prepared for amorphous |
| CN113967726A (en) * | 2021-10-25 | 2022-01-25 | 领胜城科技（江苏）有限公司 | Cooling roll for nanocrystalline belt manufacturing with adjustable cooling ring surface |
| CN114789239A (en) * | 2022-05-31 | 2022-07-26 | 无锡诚材科技有限公司 | Nanocrystalline crystallizer with circumferential grooves |
| CN114789239B (en) * | 2022-05-31 | 2023-12-01 | 无锡诚材科技有限公司 | Nanocrystalline crystallizer with circumferential grooves |
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| CN103418764B (en) | 2015-04-29 |
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