CN107488806A - The production technology of amorphous alloy strips - Google Patents
The production technology of amorphous alloy strips Download PDFInfo
- Publication number
- CN107488806A CN107488806A CN201710696823.6A CN201710696823A CN107488806A CN 107488806 A CN107488806 A CN 107488806A CN 201710696823 A CN201710696823 A CN 201710696823A CN 107488806 A CN107488806 A CN 107488806A
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- China
- Prior art keywords
- molten steel
- alloy
- temperature
- ladle
- production technology
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/003—Making ferrous alloys making amorphous alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a kind of production technology of amorphous alloy strips, comprise the following steps：Step 1, stock；Step 2, middle frequency furnace are smelted；Step 3, the molten alloy molten steel of step 2 are transferred to LF ladle refining furnaces；Step 4, the refining of LF ladle refining furnaces are completed, smelted into VD vacuum refining furnaces；Step 5, alloy molten steel are transferred to the insulation of rising pouring stove；Step 6, spray band, curling；Step 7, bundling, it will crimp volume with reel and rolled up by product requirement bundling into commodity amorphous band standard.The temperature of molten steel and trimming is carried out by LF refining in the technique of the present invention, in balanced ladle, then by VD vacuum refinings, remove foreign substance in molten steel and bubble, not only improve the controllability of smelting process, also substantially increase product quality and recovery rate.
Description
Technical field
The present invention relates to the preparation method of non-crystaline amorphous metal, particularly a kind of production technology of amorphous alloy strips.
Background technology
Non-crystaline amorphous metal refers to using metallic bond as its architectural feature, is in topological disorder shape in the atomic arrangement of three dimensions,
There is no the crystal grain of crystal alloy, crystal boundary.Compared with the crystal alloy of routine, non-crystaline amorphous metal has excellent mechanical property
(high intensity, high rigidity etc.), magnetic, corrosion resistance, wearability, high resistivity and mechanical-electric coupling performance and hydrogen storage property etc. are excellent
Point, potentiality are all had a wide range of applications in machinery, communication, electric power, Aero-Space, auto industry or even national defense and military.Amorphous
The preparation generally use of alloy is the solidification of super chilling, that is, usually requires that high temperature and high cooling velocity, during the solidification of alloy
Between it is extremely short, it is difficult to control.Fe-based amorphous alloy has the excellent soft magnet performance such as high magnetic permeability, low-coercivity, low-loss, by
The association areas such as the electric power such as current transformer, Switching Power Supply, transformer, wave filter, electronics are widely used in, are referred to as " 21 century
Environment-friendly electronic material ".
In existing amorphous alloy strips fabricating technology, when preparing amorphous alloy strips, typically by pure iron, metal
Silicon, ferro-boron are smelted in intermediate frequency furnace, and liquid alloy is directly injected on chill roll by nozzle after intermediate frequency furnace insulation, makes liquid alloy
Certain thickness strip is rapidly solidificated into, existing process has the shortcomings that following：Using general technology smelting process, molten steel into
The regulation divided can only be completed in intermediate frequency furnace smelting process, and constituent adjustment can not be carried out after tapping；Due to tapping before not to molten steel
Bag carries out the pre-heat treatment, and non-uniform temperature in steel ladle, the temperature control to next process cause difficulty after tapping；Finished product is non-
The thickness of peritectic alloy band is only 25 microns, and general smelting process is not handled the impurity element dissolved in molten steel, to production
Quality and lumber recovery cause extreme influence.
Therefore, for the production technology of current amorphous alloy strips, improved up for further.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides a kind of production of amorphous alloy strips
Technique, improve the lumber recovery and product quality of amorphous alloy strips.
The present invention is achieved through the following technical solutions：
The production technology of amorphous alloy strips, comprises the following steps：
Step 1, alloy raw material is placed on and fed intake in storehouse, middle frequency furnace is sent into after dispenser, feed is used and automatically controlled
System, ensure inventory and ratio；
Step 2, the alloy of step 1 are put into middle frequency furnace and smelted, and it is 1350- that middle frequency furnace smelting, which controls temperature,
1400 DEG C, per about 40 minutes stove used times；
Step 3, the molten liquid steel of step 2 are transferred to LF ladle refining furnaces, carry out being blown into argon gas temperature adjustment, make the steel in ladle
Coolant-temperature gage is more uniform, while can carry out trimming to molten steel, LF refining is to utilize graphite according to components tests result
Electrode submerged arc heating carries out the production technology of deep processing to alloy molten steel, is mingled with by LF refining desulfurization, deoxidation, temperature adjustment, removal
Thing, make product composition uniform, stove machine rhythm can also be adjusted；
Step 4, LF refining are completed, and into VD vacuum metlings, further remove the impurity and bubble inside molten steel, vacuum
Enter next technique after the completion of refining.VD vacuum metlings are to alloy molten steel deepen the life of processing by way of vacuumizing
Production. art, equally lead to argon gas, main dehydrogenation and nitrogen to ladle in VD vacuum smelting furnaces, promote Slag inclusion to float, VD vacuum
Smelting is arranged on after furnaceman's LF sequence, by vacuumizing, argon bottom-blowing stirring, is improved the cleanliness factor of molten steel, is reduced again in steel
Impurity content, steel quality is lifted, guarantee is provided for later product processing；
Step 5, the insulation of rising pouring stove, for continuous production, ensure direct-injection system band temperature and time, liquid alloy temperature is protected
Hold at 1350-1400 DEG C；
Step 6, spray band, curling, with nozzle bag, by liquid alloy direct-injection chill roll, crimping machine crimps, using automatic system
System control speed, ensures that product thickness is uniform, the type of cooling is cooled down by the way of water cooling is concentrated；
Step 7, bundling, it will crimp volume with reel and rolled up by product requirement bundling into commodity amorphous band standard.
The production technology of amorphous alloy strips provided by the invention, compared with prior art, the beneficial effects of the invention are as follows：
By LF refining in the technique of the present invention, the temperature of balanced steel ladle simultaneously carries out trimming, then passes through VD vacuum
Refining, foreign substance in molten steel and bubble are removed, the controllability of smelting process is not only improved, also substantially increases product quality and receipts
Yield.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment one
The preparation method of the amorphous alloy strips of the present embodiment comprises the following steps：
First, pure iron, metallic silicon, ferro-boron raw material are placed on and fed intake in storehouse, middle frequency furnace is sent into after dispenser, is given
Material uses automatic control system, ensures inventory and ratio, ratio is according to national standard《Amorphous band》1K101 ratios mix,
Wherein iron accounting 80%, silicon accounting 8%, boron accounting 12%.
Step 2, the alloy of step 1 are put into middle frequency furnace and smelted, and it is 1350-1400 that intermediate frequency furnace smelting, which controls temperature,
DEG C, per about 40 minutes stove used times.
Step 3, the molten liquid steel of step 2 are transferred to LF refining station, carry out being blown into argon gas temperature adjustment, make the molten steel temperature in ladle
Degree is more uniform, in addition, according to components tests result, carries out trimming to molten steel, LF refining is to utilize graphite electrode submerged arc
The production technology that deep processing is carried out to alloy molten steel is heated, concrete technology is first heats up to electric arc heated at ambient pressure, refining week
40~45min of phase, to molten steel average heating speed >=3.5 DEG C/min；To refining with synthetic flux (desulfurization, deoxidation, degassing, removal folder
It is miscellaneous)；Argon stirs, uniform molten steel composition and temperature, from bottom Argon；Alloying (fine setting of molten steel composition)；Thermometric, sampling.
Step 4, after LF is outbound, into VD vacuum metlings, impurity and bubble inside molten steel are further removed, during processing
Between about 50 minutes, working vacuum degree≤67Pa, treat that molten steel reaches 67Pa vacuums, pumpdown time：≤ 8 minutes.
Step 5, the insulation of rising pouring stove, because molten steel can produce temperature drop during spray band, for continuous production, ensure direct-injection system
Band temperature and time, liquid alloy temperature is maintained at 1350-1400 DEG C, (served as a contrast under keeping warm mode in hot stove, be covered with bell), different
Position maximum temperature fluctuates≤10 DEG C, heating rate when expiring stove molten steel in insulating process, under the conditions of full power power transmission, in hot stove
Heating rate is more than 2 DEG C/min under lining, bell sealing and full liquid steel water state.
Step 6, spray band, curling, with nozzle bag, by liquid alloy direct-injection chill roll, crimping machine crimps, using automatic system
System control speed, ensures that product thickness is uniform, and the type of cooling is cooled down by the way of water cooling is concentrated, and inflow temperature requires small
In 32 DEG C, pipeline scale, intake pressure 0.2-0.3Mpa, chill roll linear velocity 1-30 meter per seconds are prevented.
Step 7, bundling, it will crimp volume with reel and rolled up by product requirement bundling into commodity amorphous band standard.
The presence of steel alloy impurities in water element can form non-metallic inclusion, and non-metallic inclusion can reduce non-crystaline amorphous metal
The mechanical property of band, deteriorate the processing characteristics of amorphous alloy strips, reduce the service life of product, increase percent defective, this reality
Example greatly reduces the presence of non-metallic inclusion, to lifting product matter by improving the production technologies of amorphous alloy strips
Amount and lumber recovery are significant.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (3)
1. a kind of production technology of amorphous alloy strips, it is characterised in that comprise the following steps：
Step 1, stock, alloy raw material are fed intake in storehouse by being put into after accurate weighing in proportion；
Step 2, middle frequency furnace are smelted, and alloy raw material is sent into middle frequency furnace, middle frequency furnace vacuum metling control through dispenser
Temperature processed is 1350-1400 DEG C, minute duration of heat 40-50；
Step 3, the molten alloy molten steel of step 2 are transferred to LF ladle refining furnaces, carry out being blown into argon gas temperature adjustment, make the steel in ladle
Coolant-temperature gage is more uniform, while can carry out trimming to molten steel according to components tests result；
Step 4, LF ladle refinings are completed, and into VD vacuum metlings, further remove the impurity and bubble inside molten steel；
Step 5, alloy molten steel are transferred to the insulation of rising pouring stove, for continuous production, ensure direct-injection system band temperature and time, liquid is closed
Golden temperature is maintained at 1350-1400 DEG C；
Step 6, spray band, curling, with nozzle bag, by liquid alloy direct-injection chill roll, crimping machine crimps, using automatic system control
Speed processed, ensure that product thickness is uniform, the type of cooling is cooled down by the way of water cooling is concentrated；
Step 7, bundling, it will crimp volume with reel and rolled up by product requirement bundling into commodity amorphous band standard.
2. the production technology of amorphous alloy strips according to claim 1, it is characterised in that the step 5 insulating process
Middle heating rate is more than 2 DEG C/min.
3. the production technology of amorphous alloy strips according to claim 1, it is characterised in that enter water temperature in the step 6
Degree is less than 32 DEG C, intake pressure 0.2-0.3Mpa, chill roll linear velocity 1-30 meter per seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696823.6A CN107488806A (en) | 2017-08-15 | 2017-08-15 | The production technology of amorphous alloy strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696823.6A CN107488806A (en) | 2017-08-15 | 2017-08-15 | The production technology of amorphous alloy strips |
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| Publication Number | Publication Date |
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| CN107488806A true CN107488806A (en) | 2017-12-19 |
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| CN201710696823.6A Pending CN107488806A (en) | 2017-08-15 | 2017-08-15 | The production technology of amorphous alloy strips |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950435A (en) * | 2018-07-20 | 2018-12-07 | 山东海瑞得新材料科技有限公司 | A kind of Fe-based amorphous band and preparation method thereof that saturation magnetic strength is high |
| CN109136787A (en) * | 2018-07-20 | 2019-01-04 | 山东海瑞得新材料科技有限公司 | A kind of Fe-based amorphous band and preparation method thereof |
| CN110093571A (en) * | 2019-05-22 | 2019-08-06 | 江苏集萃安泰创明先进能源材料研究院有限公司 | A method of regulation amorphous alloy micro-structure |
| CN115747418A (en) * | 2022-11-15 | 2023-03-07 | 北京科技大学 | Method for removing sulfur impurities in iron-based amorphous alloy melt |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106636983A (en) * | 2017-01-25 | 2017-05-10 | 青岛云路先进材料技术有限公司 | Production method of iron-based amorphous alloy |
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2017
- 2017-08-15 CN CN201710696823.6A patent/CN107488806A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106636983A (en) * | 2017-01-25 | 2017-05-10 | 青岛云路先进材料技术有限公司 | Production method of iron-based amorphous alloy |
Non-Patent Citations (2)
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| 李希涛等: "EBT＋LF＋VD工艺制备非晶母合金的研制与应用", 《金属功能材料》 * |
| 王顺晃: "《实时处理与控制》", 31 October 1992, 中国科学技术出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950435A (en) * | 2018-07-20 | 2018-12-07 | 山东海瑞得新材料科技有限公司 | A kind of Fe-based amorphous band and preparation method thereof that saturation magnetic strength is high |
| CN109136787A (en) * | 2018-07-20 | 2019-01-04 | 山东海瑞得新材料科技有限公司 | A kind of Fe-based amorphous band and preparation method thereof |
| CN109136787B (en) * | 2018-07-20 | 2021-07-09 | 山东海瑞得新材料科技有限公司 | Iron-based amorphous strip and preparation method thereof |
| CN110093571A (en) * | 2019-05-22 | 2019-08-06 | 江苏集萃安泰创明先进能源材料研究院有限公司 | A method of regulation amorphous alloy micro-structure |
| CN110093571B (en) * | 2019-05-22 | 2021-07-13 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Method for regulating and controlling amorphous alloy microstructure |
| CN115747418A (en) * | 2022-11-15 | 2023-03-07 | 北京科技大学 | Method for removing sulfur impurities in iron-based amorphous alloy melt |
| CN115747418B (en) * | 2022-11-15 | 2023-12-08 | 北京科技大学 | Method for removing sulfur impurities in iron-based amorphous alloy melt |
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Application publication date: 20171219 |
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