CN107414042A - A kind of non-crystaline amorphous metal magnetic material is quenched roller cooling water system - Google Patents
A kind of non-crystaline amorphous metal magnetic material is quenched roller cooling water system Download PDFInfo
- Publication number
- CN107414042A CN107414042A CN201710649542.5A CN201710649542A CN107414042A CN 107414042 A CN107414042 A CN 107414042A CN 201710649542 A CN201710649542 A CN 201710649542A CN 107414042 A CN107414042 A CN 107414042A
- Authority
- CN
- China
- Prior art keywords
- chill roll
- fast quenching
- water distribution
- distribution channel
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 53
- 239000005300 metallic glass Substances 0.000 title claims abstract description 44
- 239000000696 magnetic material Substances 0.000 title claims abstract description 16
- 238000009826 distribution Methods 0.000 claims abstract description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000010791 quenching Methods 0.000 claims abstract description 69
- 230000000171 quenching effect Effects 0.000 claims abstract description 68
- 230000000694 effects Effects 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 2
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Quenched roller cooling water system the invention discloses a kind of non-crystaline amorphous metal magnetic material, including roll shaft in the fixation of fast quenching chill roll, the fast quenching chill roll fix in the both ends of roll shaft be respectively arranged with cooling water flow channel and cooling water flow out of passage, the cooling water flow channel and it is described cooling water flow out of passage along the fast quenching chill roll fix along roll shaft it is axially arranged；The fast quenching chill roll fix in the both ends of roll shaft be also respectively provided with some radial inflow passages and some radially flow out passage, some radial inflow passages and it is some it is described radially flow out passage along the fast quenching chill roll fix along roll shaft be radially arranged, and some radial inflow passages are set around cooling water flow channel Central Symmetry distribution, some passages that radially flow out cooling water flow out of the symmetrical setting of channel center around described.The present invention has preferable water supply capacity, disclosure satisfy that actual operation requirements.
Description
Technical field
The present invention relates to a kind of amorphous alloy material technical field of processing equipment, particularly a kind of non-crystaline amorphous metal magnetic material
Quench roller cooling water system.
Background technology
Non-crystaline amorphous metal magnetic band has excellent magnetic property, be mainly used in the small-sized high-accuracy property magnetic core of transformer of coiling,
The product such as current transformer core and voltage transformer magnetic core；Using the magnetic core of non-crystaline amorphous metal magnetic band manufacture relative to silicon
The magnetic core of steel disc manufacture, 60%~80% can be saved, and preparation process pollution is low, therefore non-crystaline amorphous metal magnetic band is a kind of
The more material of energy-conserving and environment-protective.
It is prepared by non-crystaline amorphous metal magnetic material generally use single-roller rapid quenching with quenching：Chill roll is with 25~40 meters of surfaces per second
Linear velocity is rotated, and the surface of chill roll has the copper cooling surface of cooling, and the amorphous alloy material of melting can cool down
On copper roller formed 20~40 micron thickness amorphous alloy strips, amorphous alloy strips in process of production the speed of response quickly,
Band per second up to 25~40 meters of length.Requirement of the non-crystaline amorphous metal magnetic band to preparation condition is more harsh, cooling velocity
More than 100,000 degrees Celsius per second need to be reached, this just needs non-crystaline amorphous metal magnetic material roller cooling water system of quenching to have good water supply
Ability.
The content of the invention
For overcome the deficiencies in the prior art, quenched roller cooling water system the invention provides a kind of non-crystaline amorphous metal magnetic material
System, has preferable water supply capacity, disclosure satisfy that actual operation requirements.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of non-crystaline amorphous metal magnetic material is quenched roller cooling water system, including fast quenching chill roll fix in roll shaft, the fast quenching cooling
The both ends of roll shaft are respectively arranged with cooling water flow channel and cooling water flow out of passage, the cooling water flow channel in roller fixation
With it is described cooling water flow out of passage along the fast quenching chill roll fix along roll shaft it is axially arranged；The fast quenching chill roll is fixed
The both ends of interior roll shaft be also respectively provided with some radial inflow passages and it is some radially flow out passage, some radial inflows lead to
Road and it is some it is described radially flow out passage along the fast quenching chill roll fix along roll shaft be radially arranged, and some radial directions
Flow channel is set around cooling water flow channel Central Symmetry distribution, and some passages that radially flow out are around described cold
But the symmetrical setting of water outflow channel center.
As the further improvement of above-mentioned technical proposal, in addition to the outer roller of fast quenching chill roll activity, the fast quenching cooling
The roller outer roller coaxial package of activity in fast quenching chill roll fixation on the outside of roll shaft, the movable outer roller of the fast quenching chill roll
Axial both ends are respectively arranged with some radial inflow water distribution channels and some radially flow out water distribution channel, some radial inflow water distributions
Road is set around cooling water flow channel Central Symmetry distribution, some described to radially flow out water distribution channel and surround the cooling water
The distribution of flow pass Central Symmetry is set.
As the further improvement of above-mentioned technical proposal, the outer roller of the fast quenching chill roll activity is provided with the radial flow
The axial one end for entering water distribution channel is additionally provided with interior annular inflow water distribution channel and exterior annular inflow water distribution channel, the interior annular
Flow into water distribution channel and exterior annular inflow water distribution channel is coplanar and coaxial with the outer roller of fast quenching chill roll activity, it is described
Interior annular flows into water distribution channel and the exterior annular is flowed between water distribution channel by some radial inflow water distribution channels connections；
The outer roller of the fast quenching chill roll activity is provided with described axial one end for radially flowing out water distribution channel and is additionally provided with interior annular stream
Go out water distribution channel and exterior annular outflow water distribution channel, the interior annular outflow water distribution channel and exterior annular outflow water distribution channel are total to
Face and coaxial with the outer roller of fast quenching chill roll activity, the interior annular outflow water distribution channel and exterior annular outflow
Connected between water distribution channel by some water distribution channels that radially flow out.
As the further improvement of above-mentioned technical proposal, some axles are additionally provided with the outer roller of the fast quenching chill roll activity
To cooling-water duct, some axial cooling-water ducts along the fast quenching chill roll fix along roll shaft it is axially arranged, and
The both ends of each axial cooling-water duct are respectively communicated with the exterior annular and flow into water distribution channel and exterior annular outflow
Water distribution channel, and the axis centre of some axial cooling-water ducts roll shaft in fast quenching chill roll fixation is symmetrical
Set.
It is molten as the further improvement of above-mentioned technical proposal, in addition to non-crystaline amorphous metal solution pouring ladle, the non-crystaline amorphous metal
Liquid pouring ladle is located at the surface of the outer roller of fast quenching chill roll activity, and the bottom of the non-crystaline amorphous metal solution pouring ladle is set
It is equipped with non-crystaline amorphous metal solution and pours head piece, the non-crystaline amorphous metal solution pours cambered surface of the head piece positioned at the outer roller of chill roll activity of quenching
Directly over summit；It is strip that the non-crystaline amorphous metal solution, which pours head piece, and the non-crystaline amorphous metal solution pours the length direction of head piece
Parallel to the axis of roll shaft in fast quenching chill roll fixation.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of non-crystaline amorphous metal magnetic material provided by the present invention is quenched roller cooling water system, has preferable water supply capacity, can
Meet actual operation requirements；And roll structure is preferably cooled down, it is easy to process assembly and disassembly maintenance.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is that a kind of non-crystaline amorphous metal magnetic material of the present invention is quenched the structural representation of roller cooling water system；
Fig. 2 is the cross-section structure signal of roll shaft and the outer roller of fast quenching chill roll activity in fast quenching chill roll of the present invention is fixed
Figure.
Embodiment
Referring to figs. 1 to Fig. 2, Fig. 1 to Fig. 2 is the structural representation of a specific embodiment of the invention.
As shown in Figure 1 to Figure 2, a kind of non-crystaline amorphous metal magnetic material is quenched roller cooling water system, including fast quenching chill roll is fixed
Interior roll shaft 10, the fast quenching chill roll fix in the both ends of roll shaft 10 be respectively arranged with cooling water flow channel 11 and cooling current
Go out passage 12, the cooling water flow channel 11 and it is described cooling water flow out of passage 12 along the fast quenching chill roll fix along roller
Axle 10 it is axially arranged；The both ends of roll shaft 10 are also respectively provided with some radial inflow passages 13 in the fast quenching chill roll fixation
Passage 14 is radially flowed out with some, some radial inflow passages 13 and some described radially flows out passage 14 along described fast
Chill roll of quenching fix in roll shaft 10 be radially arranged, and some radial inflow passages 13 surround the cooling water flow channel
The distribution of 11 Central Symmetries is set, and some passages 14 that radially flow out cooling water flow out of the distribution of the Central Symmetry of passage 12 around described
Set.
Specifically, in addition to the outer roller 20 of fast quenching chill roll activity, the movable outer coaxial sleeve of roller 20 of the fast quenching chill roll
The outside of roll shaft 10 in fast quenching chill roll fixation, the axial both ends of the outer roller 20 of the fast quenching chill roll activity are set respectively
Be equipped with some radial inflow water distribution channels 21 and it is some radially flow out water distribution channel 22, some radial inflow water distribution channels 21 surround institute
State the distribution of the Central Symmetry of cooling water flow channel 11 to set, some water distribution channels 22 that radially flow out cooling water flow out of around described
The distribution of the Central Symmetry of passage 12 is set.The outer roller 20 of the fast quenching chill roll activity is provided with the radial inflow water distribution channel 21
Axial one end is additionally provided with interior annular and flows into water distribution channel 23 and exterior annular inflow water distribution channel 24, and the interior annular flows into cloth
Water channel 23 and exterior annular inflow water distribution channel 24 are coplanar and coaxial with the outer roller 20 of fast quenching chill roll activity, described
Interior annular, which is flowed between water distribution channel 23 and exterior annular inflow water distribution channel 24, passes through some radial inflow water distribution channels
21 connections；The outer roller 20 of the fast quenching chill roll activity is provided with described axial one end for radially flowing out water distribution channel 22 and is additionally provided with
Interior annular flows out water distribution channel 25 and exterior annular outflow water distribution channel 26, the interior annular outflow water distribution channel 25 and the outside
It is coplanar and coaxial with the outer roller 20 of fast quenching chill roll activity that annular flow goes out water distribution channel 26, the interior annular outflow water distribution
Connected between road 25 and exterior annular outflow water distribution channel 26 by some water distribution channels 22 that radially flow out.The fast quenching
But some axial cooling-water ducts 27 are additionally provided with the outer roller 20 of roller activity, some axial cooling-water ducts 27 are along institute
State fast quenching chill roll fix in roll shaft 10 it is axially arranged, and the both ends of each axial cooling-water duct 27 are respectively communicated with institute
State exterior annular and flow into water distribution channel 24 and exterior annular outflow water distribution channel 26, and some axial cooling-water ducts 27 enclose
The symmetrical setting of axis centre of roll shaft 10 in fast quenching chill roll fixation.
Further, in addition to non-crystaline amorphous metal solution pouring ladle 30, the non-crystaline amorphous metal solution pouring ladle 30 are located at described
The surface of the outer roller 20 of fast quenching chill roll activity, and the bottom of the non-crystaline amorphous metal solution pouring ladle 30 is provided with non-crystaline amorphous metal
Solution pours head piece 31, and the non-crystaline amorphous metal solution pours the cambered surface summit that head piece 31 is located at the outer roller 20 of fast quenching chill roll activity
Surface；It is strip that the non-crystaline amorphous metal solution, which pours head piece 31, and the non-crystaline amorphous metal solution pours the length direction of head piece 31
Parallel to the axis of roll shaft 10 in fast quenching chill roll fixation.
During work, the aluminium alloy of melting pours stream by the non-crystaline amorphous metal solution of the non-crystaline amorphous metal solution pouring ladle 30
Mouth 31 is flowed on the outside roll surface of the outer roller 20 of the fast quenching chill roll activity, and non-crystaline amorphous metal magnetic is made by quickly cooling down
Band.
The preferable implementation to the present invention is illustrated above, and certainly, the present invention can also use and above-mentioned implementation
The different form of mode, the equivalent conversion that those skilled in the art are made on the premise of without prejudice to spirit of the invention
Or corresponding change, it should all belong in protection scope of the present invention.
Claims (5)
- The roller cooling water system 1. a kind of non-crystaline amorphous metal magnetic material is quenched, it is characterised in that：Including roll shaft in the fixation of fast quenching chill roll （10）, the fast quenching chill roll fix in roll shaft（10）Both ends be respectively arranged with cooling water flow channel（11）With cooling current Go out passage（12）, the cooling water flow channel（11）Passage is cooling water flow out of with described（12）Consolidate along the fast quenching chill roll Roll shaft in fixed（10）It is axially arranged；Roll shaft in the fast quenching chill roll fixation（10）Both ends be also respectively provided with some radial directions Flow channel（13）Passage is radially flowed out with some（14）, some radial inflow passages（13）Described radially flowed out with some Passage（14）The roll shaft along fast quenching chill roll fixation（10）Be radially arranged, and some radial inflow passages（13） Around the cooling water flow channel（11）Central Symmetry distribution is set, some described to radially flow out passage（14）Around described cold But water flow pass（12）Central Symmetry distribution is set.
- The roller cooling water system 2. a kind of non-crystaline amorphous metal magnetic material according to claim 1 is quenched, it is characterised in that：Also include The outer roller of fast quenching chill roll activity（20）, the outer roller of the fast quenching chill roll activity（20）Coaxial package is in the fast quenching chill roll Roll shaft in fixation（10）Outside, the outer roller of the fast quenching chill roll activity（20）Axial both ends be respectively arranged with some radial flows Enter water distribution channel（21）Water distribution channel is radially flowed out with some（22）, some radial inflow water distribution channels（21）Around the cooling water Flow channel（11）Central Symmetry distribution is set, some described to radially flow out water distribution channel（22）Passage is cooling water flow out of around described （12）Central Symmetry distribution is set.
- The roller cooling water system 3. a kind of non-crystaline amorphous metal magnetic material according to claim 2 is quenched, it is characterised in that：It is described fast The movable outer roller of chill roll of quenching（20）It is provided with the radial inflow water distribution channel（21）Axial one end be additionally provided with interior annular Flow into water distribution channel（23）Water distribution channel is flowed into exterior annular（24）, the interior annular inflow water distribution channel（23）With the outer side ring Shape flows into water distribution channel（24）It is coplanar and with the outer roller of fast quenching chill roll activity（20）Coaxially, the interior annular flows into cloth Water channel（23）Water distribution channel is flowed into the exterior annular（24）Between pass through some radial inflow water distribution channels（21）Connection；Institute State the outer roller of fast quenching chill roll activity（20）Water distribution channel is radially flowed out described in being provided with（22）Axial one end be additionally provided with inner side Annular flow goes out water distribution channel（25）Water distribution channel is flowed out with exterior annular（26）, the interior annular outflow water distribution channel（25）Outside described Side ring shape flows out water distribution channel（26）It is coplanar and with the outer roller of fast quenching chill roll activity（20）Coaxially, the interior annular stream Go out water distribution channel（25）Water distribution channel is flowed out with the exterior annular（26）Between by some described radially flow out water distribution channel（22）Even It is logical.
- The roller cooling water system 4. a kind of non-crystaline amorphous metal magnetic material according to claim 3 is quenched, it is characterised in that：It is described fast The movable outer roller of chill roll of quenching（20）On be additionally provided with some axial cooling-water ducts（27）, some axial cooling-water ducts （27）The roll shaft along fast quenching chill roll fixation（10）Axially arranged, and each axial cooling-water duct（27）'s Both ends are respectively communicated with the exterior annular and flow into water distribution channel（24）Water distribution channel is flowed out with the exterior annular（26）, and it is some described Axial cooling-water duct（27）The roll shaft in fast quenching chill roll fixation（10）The symmetrical setting of axis centre.
- The roller cooling water system 5. a kind of non-crystaline amorphous metal magnetic material according to claim 4 is quenched, it is characterised in that：Also include Non-crystaline amorphous metal solution pouring ladle（30）, the non-crystaline amorphous metal solution pouring ladle（30）Positioned at the outer roller of fast quenching chill roll activity （20）Surface, and the non-crystaline amorphous metal solution pouring ladle（30）Bottom be provided with non-crystaline amorphous metal solution and pour head piece（31）, The non-crystaline amorphous metal solution pours head piece（31）Positioned at the outer roller of fast quenching chill roll activity（20）Cambered surface summit directly over；Institute State non-crystaline amorphous metal solution and pour head piece（31）For strip, and the non-crystaline amorphous metal solution pours head piece（31）Length direction parallel to Roll shaft in the fast quenching chill roll fixation（10）Axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649542.5A CN107414042A (en) | 2017-08-02 | 2017-08-02 | A kind of non-crystaline amorphous metal magnetic material is quenched roller cooling water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649542.5A CN107414042A (en) | 2017-08-02 | 2017-08-02 | A kind of non-crystaline amorphous metal magnetic material is quenched roller cooling water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107414042A true CN107414042A (en) | 2017-12-01 |
Family
ID=60437258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710649542.5A Pending CN107414042A (en) | 2017-08-02 | 2017-08-02 | A kind of non-crystaline amorphous metal magnetic material is quenched roller cooling water system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788037A (en) * | 2018-07-20 | 2018-11-13 | 芜湖君华材料有限公司 | A kind of amorphous magnetic material conduction oil circulating cooling system |
| CN111097186A (en) * | 2019-12-25 | 2020-05-05 | 中天电气技术有限公司 | Cooling crystallizer |
| CN114381673A (en) * | 2022-01-14 | 2022-04-22 | 青岛云路先进材料技术股份有限公司 | Iron-based amorphous nanocrystalline strip and preparation method thereof |
| CN118045973A (en) * | 2024-04-16 | 2024-05-17 | 包头市科锐微磁新材料有限责任公司 | A quick quenching wheel assembly structure for a vacuum quick quenching furnace |
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| US5996680A (en) * | 1997-07-30 | 1999-12-07 | Ishikawajima-Harima Heavy Industries Co., Limited | Twin roll casting |
| CN100364694C (en) * | 2003-07-18 | 2008-01-30 | 奥地利钢铁联合企业阿尔卑斯工业设备制造有限公司 | Inner-cooling billet guide roller |
| CN103406506A (en) * | 2013-07-30 | 2013-11-27 | 浙江大学 | Cooling roller device for optimizing amorphous metal wide strip production |
| KR101467864B1 (en) * | 2013-07-04 | 2014-12-02 | 태창기계공업(주) | Cooling roll for manufacturing the amorphous metal strip |
| CN104493116A (en) * | 2014-12-29 | 2015-04-08 | 江西大有科技有限公司 | Jet preparation device of amorphous alloy strip and preparation method thereof |
| CN204800916U (en) * | 2015-06-27 | 2015-11-25 | 汕头市远东轻化装备有限公司 | Cooling roller |
| CN105665666A (en) * | 2015-12-31 | 2016-06-15 | 安泰科技股份有限公司 | Uniform-cooling cooling roller device and method for amorphous strip preparing |
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2017
- 2017-08-02 CN CN201710649542.5A patent/CN107414042A/en active Pending
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| US5996680A (en) * | 1997-07-30 | 1999-12-07 | Ishikawajima-Harima Heavy Industries Co., Limited | Twin roll casting |
| CN100364694C (en) * | 2003-07-18 | 2008-01-30 | 奥地利钢铁联合企业阿尔卑斯工业设备制造有限公司 | Inner-cooling billet guide roller |
| KR101467864B1 (en) * | 2013-07-04 | 2014-12-02 | 태창기계공업(주) | Cooling roll for manufacturing the amorphous metal strip |
| CN103406506A (en) * | 2013-07-30 | 2013-11-27 | 浙江大学 | Cooling roller device for optimizing amorphous metal wide strip production |
| CN104493116A (en) * | 2014-12-29 | 2015-04-08 | 江西大有科技有限公司 | Jet preparation device of amorphous alloy strip and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788037A (en) * | 2018-07-20 | 2018-11-13 | 芜湖君华材料有限公司 | A kind of amorphous magnetic material conduction oil circulating cooling system |
| CN111097186A (en) * | 2019-12-25 | 2020-05-05 | 中天电气技术有限公司 | Cooling crystallizer |
| CN111097186B (en) * | 2019-12-25 | 2021-11-09 | 中天电气技术有限公司 | Cooling crystallizer |
| CN114381673A (en) * | 2022-01-14 | 2022-04-22 | 青岛云路先进材料技术股份有限公司 | Iron-based amorphous nanocrystalline strip and preparation method thereof |
| CN118045973A (en) * | 2024-04-16 | 2024-05-17 | 包头市科锐微磁新材料有限责任公司 | A quick quenching wheel assembly structure for a vacuum quick quenching furnace |
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Application publication date: 20171201 |
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