CN103418764B - 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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- CN103418764B CN103418764B CN201310324152.2A CN201310324152A CN103418764B CN 103418764 B CN103418764 B CN 103418764B CN 201310324152 A CN201310324152 A CN 201310324152A CN 103418764 B CN103418764 B CN 103418764B
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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 technical field of heat transfer, particularly relate to a kind of cooling roller device producing amorphous nanocrystalline soft magnetic material.
Technical background
Non-crystaline amorphous metal develops very popular in recent decades in the world and has one of new material of strategic meaning.In current industrial production, single roller rotation insufflation that adopts prepares amorphous band more.The process that single-roller method prepares amorphous thin ribbon is specifically 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 the surface tension of slit to molten alloy, motlten metal is just sprayed by nozzle, gap between warp and roll surface, arrive atwirl roll surface and form weld pool, motlten metal weld pool is pulled formation metal sheet band by the running roller of High Rotation Speed, heat is taken away by the cooling water flowed through roller shell, strip cools rapidly on roll surface, and by the effect of centrifugal force by roll surface of dishing out, pull, cooling is carried out continuously until the flow of molten metal clamped in pot is complete.
It can thus be appreciated that this production technology requires strict to chill roll surface temperature, because roll surface directly contacts with motlten metal, decide cooling velocity and the Forming Quality of metal.Generally, the heat discharged upon solidification of the molten metal can not in time by cooling roller shell outer surface reach inner surface then cooled water-band walk, roller shell surface temperature will be caused to raise, and the cooling velocity decline of molten metal, finally can not get amorphous structure; In addition, due to the heat transfer condition cooling roller shell central area and borderline region different (border heat transfer is better than central area), (temperature is the highest at central point along the skewness of bandwidth direction to make roller shell surface temperature, and along both sides progressively decline formation temperature gradient), then correspondingly cause strip due to inhomogeneous cooling even and produce series of process defect.
Therefore, optimize chill roll structure, adjusting process parameter, controls chill-roll temperature field within uniform temperature value and certain thermograde, has very important significance to acquisition high-quality amorphous alloy band.
At present, the structural design object of amorphous ribbon production chill roll water channel is the cooling capacity how improving chill roll more.Wherein, the spirality channel that Chinese patent CN 1552543A designs make use of the feature that it can improve cooling water flow velocity, is only used to the cooling capacity improving chill roll.Although Chinese patent CN 102133619 A appreciates the inhomogeneous cooling problem of copper roller, it is the flow direction by changing water channel, and namely, water inlet both sides water outlet improves.It thinks the temperature rise causing the reason of inhomogeneous cooling to be cooling water, cools border again, can prevent the inhomogeneous cooling problem of copper roller if first cool in the middle part of copper roller.This is shiring the heavy work aning choose the light in fact, because the temperature rise of cooling water can't cause the convection transfer rate of roller shell lower surface to have obvious difference, and the amplitude of temperature rise in fact can by suitably improving discharge to reduce.
Summary of the invention
The object of this invention is to provide a kind of cooling roller device producing amorphous nanocrystalline soft magnetic material.By the cooling channel structure of appropriate design chill roll, the region that roller shell is contacted with amorphous band reaches equalizing temperature along on its roller cross direction, thus improve Amorphous Wide Ribbon goods due to inhomogeneous cooling even and produce both sides warpage even zone line organize the defect of crystallization.
The cooling roller device producing amorphous nanocrystalline soft magnetic material mainly comprises: roller matrix, roller shell, first cover plate, main shaft and the second cover plate, main shaft is provided with roller matrix, roller matrix cylindrical side is provided with roller shell, roller matrix both sides are respectively equipped with the first cover plate, second cover plate, first cover plate and the second cover plate are symmetrical structure, and be connected by roller shell, 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 spirality tank, the boss periphery of spirality tank end face and roller matrix is fitted and is formed spirality flow of cooling water passage, with the first cover plate outside roller shell inner surface, second cover plate and roller matrix periphery surround the symmetrical equidistant flow of cooling water passage of the stepped annular in a 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, first cover plate and the second cover plate and roller matrix dual-side form left radial flow of cooling water passage and right radial flow of cooling water passage respectively, the main shaft hollow of roller matrix both sides is respectively water inlet and delivery port, the main shaft sidewall of roller matrix both sides is respectively equipped with into water flowing duct and water outlet flowing duct, water inlet, water inlet flowing duct, left radial flow of cooling water passage, 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, right radial flow of cooling water passage, water outlet flowing duct, delivery port is connected in turn.
Interval L between the first described cover plate bulge loop end face and the second cover plate bulge loop end face is the 85%-95% of amorphous band width W to be processed.The first described cover plate bulge loop and the thickness D of the second cover plate bulge loop are 15mm ~ 30mm.Described spirality flow of cooling water passage is 55% ~ 65% of amorphous band width W to be processed along roller shell length L ' axially.
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 Compound cooling passage, so, the central area of band is in the high strength cooling condition of trough shaped passage, and border is in the common cooling condition of circular passage, thus hot-fluid band being passed to roller shell is redistributed, finally realize the homogenising of roller shell temperature.In addition, this device still adopts the cooling system of one end water inlet one end water outlet, without the need to expending material resources conversion unit again.
Accompanying drawing explanation
Fig. 1 is the cooling roller device structural representation producing amorphous nanocrystalline soft magnetic material;
Fig. 2 is Fig. 1 partial structurtes enlarged drawings;
Fig. 3 is that the special size of cooling roller device of the present invention requires schematic diagram;
In figure, roller matrix 1, roller shell 2, first cover plate 3, main shaft 4, water inlet 5, delivery port 6, second cover plate 7, flowing duct, left side 8, left radial 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, right radial flow of cooling water passage 12, right side flow duct 13, amorphous band to be processed 14.
Detailed description of the invention
The problem improving copper roller inhomogeneous cooling need be started with from heat transfer mechanism: the heat that band discharges finally is taken away by the cooling water flowed by way of copper roll sleeve.If arrange by tradition cooling roll structure, namely cooling duct has identical radiating efficiency along on roller cross direction, then in this diabatic process, the characteristic distributions of hot-fluid in copper roll sleeve is the hot-fluid of central area is one dimensional flow, the hot-fluid of borderline region is two-dimensional flow, border heat transfer is better than central area, and naturally corresponding roller shell upper surface zone line temperature can apparently higher than border.Thus the effective way improving copper sheathing inhomogeneous cooling is by rationally arranging cooling duct, and the intensity of cooling improving roller shell center also suitably weakens the intensity of cooling on border, allows hot-fluid redistribute, to reach equalizing temperature as far as possible.
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 producing amorphous nanocrystalline soft magnetic material mainly comprises: roller matrix 1, roller shell 2, 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, second cover plate 7, first cover plate 3 and the second cover plate 7 are symmetrical structure, and be connected by roller shell 2, 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 spirality tank, the boss periphery of spirality tank end face and roller matrix 1 is fitted and is formed spirality flow of cooling water passage 11, with the first cover plate 3 outside roller shell 2 inner surface, second cover plate 7 and roller matrix 1 periphery surround the symmetrical equidistant flow of cooling water path 10 of the stepped annular in a 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, first cover plate 3 and the second cover plate 7 form left radial flow of cooling water passage 9 and right radial flow of cooling water passage 12 respectively with roller matrix 1 dual-side, the main shaft hollow of roller matrix 1 both sides is respectively water inlet 5 and delivery port 6, the main shaft sidewall of roller matrix 1 both sides is respectively equipped with into water flowing duct 8 and water outlet flowing duct 13, water inlet 5, water inlet flowing duct 8, left radial flow of cooling water passage 9, 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 ', right radial flow of cooling water passage 12, water outlet flowing duct 13, delivery port 6 is connected in turn.
Interval L between the first described cover plate 3 bulge loop end face and the second cover plate 7 bulge loop end face is the 85%-95% of amorphous band 14 width W to be processed.The thickness D of the first described cover plate 3 bulge loop and the second cover plate 7 bulge loop is 15mm ~ 30mm.Described spirality flow of cooling water path 10 is 55% ~ 65% of amorphous band 14 width W to be processed along roller shell 2 length L ' axially.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, first cover plate 3 and the second cover plate 7 do high speed rotary motion under the drive of main shaft 4, and the outer surface constantly having high-temperature molten metal liquid to be injected in roller shell 2 is in the process cooled to the amorphous band 12 that width is W then.For ensureing the efficient radiating efficiency of chill roll, the cooling water of certain flow need be passed into from the water inlet 5 main shaft 4, cooling water enters the stepped annular cooling water flow channel 10 of left radial flow of cooling water passage 9 and a left side through flowing duct, left side 8, then the spirality flow of cooling water passage 11 at center is accelerated through because overflow section sharply reduces, pass through the stepped annular flow passage 10 ' in the right side of stepped annular flow passage 10 symmetry with a left side afterwards again, enter right radial flow of cooling water passage 12 and right side flow duct 13, finally flow out from delivery port 6.
Claims (4)
1. produce the cooling roller device of amorphous nanocrystalline soft magnetic material for one kind, it is characterized in that, cooling roller device mainly comprises: roller matrix (1), roller shell (2), 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), second cover plate (7), first cover plate (3) and the second cover plate (7) are symmetrical structure, and be connected by roller shell (2), 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 spirality tank, the boss periphery of spirality tank end face and roller matrix (1) is fitted and is formed spirality flow of cooling water passage (11), with the first cover plate (3) outside roller shell (2) inner surface, second cover plate (7) and roller matrix (1) periphery surround the symmetrical equidistant flow of cooling water passage (10) of the stepped annular in a left side jointly, the equidistant flow of cooling water passage (10 ') of right stepped annular, two, the left and right equidistant flow of cooling water passage of stepped annular is connected by spirality flow of cooling water passage (11), first cover plate (3) and the second cover plate (7) form left radial flow of cooling water passage (9) and right radial flow of cooling water passage (12) respectively with roller matrix (1) dual-side, the main shaft hollow of roller matrix (1) both sides is respectively water inlet (5) and delivery port (6), the main shaft sidewall of roller matrix (1) both sides is respectively equipped with into water flowing duct (8) and water outlet flowing duct (13), water inlet (5), water inlet flowing duct (8), left radial flow of cooling water passage (9), the equidistant flow of cooling water passage (10) of left stepped annular, spirality flow of cooling water passage (11), the equidistant flow of cooling water passage (10 ') of right stepped annular, right radial flow of cooling water passage (12), water outlet flowing duct (13), delivery port (6) is connected in turn.
2. a kind of cooling roller device producing amorphous nanocrystalline soft magnetic material according to claim 1, it is characterized in 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 the 85%-95% of amorphous band to be processed (14) width W.
3. a kind of cooling roller device producing amorphous nanocrystalline soft magnetic material according to claim 1, is characterized in that, described the first cover plate (3) bulge loop and the thickness D of the second cover plate (7) bulge loop are 15mm ~ 30mm.
4. a kind of cooling roller device producing amorphous nanocrystalline soft magnetic material according to claim 1, it is characterized in that, described spirality flow of cooling water passage (11) is 55% ~ 65% of amorphous band to be processed (14) width W along roller shell (2) length L ' axially.
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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 true CN103418764B (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN107081410A (en) * | 2017-04-25 | 2017-08-22 | 王宇 | One kind rotation chill roll and its cooling means |
| CN107127307B (en) * | 2017-06-22 | 2023-07-04 | 广东合一新材料研究院有限公司 | A extremely fast samming cooler for amorphous preparation |
| 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 |
| 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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| 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 |
| CN1238133C (en) * | 2003-12-18 | 2006-01-25 | 安泰科技股份有限公司 | Rotary cooling roller and cooling method thereof |
| CN102133619B (en) * | 2011-01-18 | 2013-01-30 | 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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