CN109822067A - A kind of method that Ni-based non-crystalline thin-band is continuously prepared - Google Patents
A kind of method that Ni-based non-crystalline thin-band is continuously prepared Download PDFInfo
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Abstract
The invention belongs to amorphous alloy preparation fields, and in particular to a method of ni-based amorphous alloy thin strip is continuously prepared using double roller therapy.Alloy raw material or preliminary master alloy obtained melting in vacuum induction melting furnace are obtained Ni-based amorphous master alloy melt by this method.After temperature control reaches requirement, it is filled with argon gas and opens the slide valve of vacuum induction melting furnace and intermediate parlor, melt is imported in the tundish with high-purity argon gas protection by pre- hot flow path.After the flow control stopper of tundish is opened, alloy melt injects in casting roll roll gap after the uniform cloth stream of cloth stem bar, is amorphous band by water-cooled casting rolls cooling forming, and amorphous band is arranged roller and continues to cool down and import taking-up equipment.Entire casting-cooling-coiling process is completed in the casting machine cavity that high-purity argon gas is protected.Amorphous formation process flow is short in the present invention, cooling rate is fast and preparation process serialization, can efficiently, continuously prepare Ni-based non-crystalline thin-band using method of the invention, promote the application of ni-based amorphous alloy.
Description
Technical field
The invention belongs to amorphous alloy preparation fields, and in particular to a kind of continuously to prepare ni-based amorphous alloy using double roller therapy
The method of thin strip.
Technical background
Amorphous alloy, also referred to as glassy metal (Metallic Glass) or glassy alloy (Glassy Alloy) are applications
The alloy that one kind that modern quickly solidification metallurgical technology prepares is novel, special, state of matter is clearly distinguishable from crystalline state
Material.Since the unique atomic structural arrangement of amorphous alloy and metallic bond form, there is amorphous alloy compared to traditional crystalline state
The more excellent mechanical property of metal material, physical property and chemical property.This makes amorphous alloy in aerospace, weapons work
Industry, precision instrument, biologic medical and power Transmission etc. are with a wide range of applications.
The preparation of early stage amorphous alloy needs very big cooling velocity (> 106K/s), at that time amorphous alloy can only with powder,
The forms such as silk, strip exist, and greatly weaken the performance of amorphous alloy performance potential, limitation amorphous alloy answering in the industry
With.Therefore, since last century late nineteen eighties, the Forming ability of amorphous alloy how is improved, large-sized amorphous is prepared and closes
Gold becomes one of focus on research direction in new material research field.In the decades of the 1980s so far, by a large amount of
The effort of scholar, having developed Zr base, Ti base, Fe base, Co base, Ni base, Cu base, Pt base etc. largely there is big glass to be formed
The alloy system of ability；Develop a variety of bulk amorphous alloy such as water quenching, copper mold casting method, directional solidification method, amorphous powder extrusion
The technology of preparing of alloy.Wherein, had at home using the amorphous thin ribbon with excellent soft magnet performance that single-roller method produces
On a large scale, it is widely applied, makes outstanding contributions for the energy-saving and emission-reduction of China's electric system.Moreover, the system of block amorphous alloy
It is standby to be produced as structural material because of its excellent mechanical property with the same acquirement significant progress of application and be applied to electricity
Sub- product, sports equipment, auto parts etc..Currently, the most important production method of block amorphous alloy product applied in the market
It is casting die, since its own condition limits, small dimension product can only be produced.And as strip widely used in structural material
Material, still without reliable production method.Therefore, how to realize continuous, a large amount of, the stable production of amorphous alloy Strip, push away
The extensive use of dynamic block amorphous alloy, is one of current amorphous industry urgent problem.
Currently, the main production process of amorphous strip includes that single roller melt supercooled method, double roller melt supercooled method and casting mold are drawn
Casting.It is most widely used at present, have been used for industrialized production is single roller melt supercooled method, abbreviation single-roller method.Single-roller method production
Fe-based amorphous band there is excellent soft magnet performance, can be instead of silicon steel, permalloy to make transformer core, and then significantly
Transformer efficiency is improved, reduces the iron loss of distribution transformer, while reducing volume and weight.However single-roller method production technology limits
The thickness (about 20~50 μm) and width (being less than 220mm) of band.Double roller melt supercooled method abbreviation double roller therapy.It is opened based on double roller therapy
The continuous cast method for sending out block amorphous alloy a variety of.United States Patent (USP) (publication number US2006/0260782A1) discloses a kind of bulk amorphous alloy
Sheet alloy continuously stays in device and method, and device uses multiple groups minor diameter chill roll cooled alloy band in patent, due to
It, which arranges roller, can only apply smaller contact pressure, and system cooling rate can only achieve less than 10 DEG C/s, and the plate thickness of preparation is 0.1~
10mm, and it is only limitted to the molding of the strong Zr base noncrystal alloy containing Be of Forming ability, it can also reduce amorphous service life and stability.With
Technical idea is closer to is Chinese patent (publication number CN 107755652A), continuously casting cooling using crawler type
Amorphous, contact force is smaller, and cooling rate is limited, can equally reduce the amorphous service life and prepare the ingredient design redundancy of amorphous.China
Patent (publication number CN1486800A) discloses a kind of block amorphous alloy continuous casting rolling technology, by molten metal melt in crucible
It injects in the water cooling roll of two relative rotation, prepares bulk amorphous alloy plate, bar etc. using double roll castings, but the patent is not
See concrete technology protection node and implementer's case, while to smelting temperature, Insulation, flow control measure, cooling rate, casting-rolling force
Etc. detail parameters do not carry out yet disclosure.And Roll-gap position can apply relatively large roll-force, to realize larger cooling rate,
Theoretically its cooling capacity is greater than single-roller method, and can be the preparation biggish amorphous alloy Strip of thickness specification.Casting mold cast
Method, be the master alloy after a kind of melting melted in crucible, keep the temperature after be cast in the pass of water cooling through stem bar, and by with one
Constant speed degree is to molding amorphous alloy with pulling force, the method for realization amorphous alloy continuously casting.Chinese patent (publication number
CN101543885A the device and method for) disclosing a kind of block amorphous alloy horizontal continuous-casting, the cooling of alloy rely primarily on
The slab of water cooled copper mould, solidification pulls constantly output by the draw bar of motor drive.
Summary of the invention
It is high to material purity, vacuum level requirements for ni-based amorphous alloy preparation, there is not yet ni-based amorphous alloy Strip
The problem of mass production, continuously prepares ni-based amorphous alloy thin strip using double roller therapy the purpose of the present invention is to provide a kind of
Method, using general industry raw material, the characteristics of continuous-stable coagulating environment can be provided based on thin-belt casting rolling technique, amorphous formation
Process flow is short, cooling rate is fast and preparation process serialization, and it is thin efficiently, continuously to prepare Ni-based amorphous using method of the invention
Band promotes the application of ni-based amorphous alloy.
The technical scheme is that
A kind of method that Ni-based non-crystalline thin-band is continuously prepared, sequentially includes the following steps:
(1) set component master alloy melting, ingredient are as follows: Ni are pressedaZrbTicAldNbeHff, a, b, c, d, e, f are atom hundred
Divide ratio, wherein 40≤a≤70；0≤b≤35；0≤c≤20；0≤d≤10；0≤e≤20；0≤f≤10；By alloy raw material or
Preliminary obtained master alloy is put into melting kettle melting to being completely melt, continues melting after fusing, is being higher than alloy melting point 200
DEG C or more at a temperature of 5~20min of melting, melt alloy sufficiently；
(2) by alloy melt by preheating diversion pipe import tundish in, tundish temperature be higher than alloy melting point 100~
300 DEG C, make alloy samming in tundish, the casting time control alloyage degree of superheat is 100~300 DEG C；
(3) amorphous thin ribbon forming process: opening stopper, and alloy melt is flowed to casting roll roll gap by the uniform cloth of cloth stem bar
In, so that alloy is quickly cooled down casting forming；In strip casting process, alloy is conducted heat by casting roll to be quickly cooled down, and cooling velocity is
1000~75000 DEG C/s, by control roll casting speed be 0.05~3m/s, the control of casting-rolling force size is every 1cm width Cast Strip
Casting-rolling force is 2~15kN, and casting roll roll gap opening width is set as 0.1~1mm, goes out roll temperature to regulate and control alloy thin band, and will close
Gold goes out roll temperature control in the crystallization temperature Tx for being less than alloy；
(4) alloy Cast Strip is cooling again through row's roller and to import coiling machine coiled；In the preparation process of Cast Strip, entire casting-is cold
But-coiling process is completed in the casting machine cavity that high-purity argon gas is protected.
The method that the Ni-based non-crystalline thin-band is continuously prepared continuously quickly prepares 0.1~1mm thickness using double roller therapy
The ni-based amorphous alloy strip of degree.
The method that the Ni-based non-crystalline thin-band is continuously prepared, foundry alloy melting process and samming storing process are all in <
It is carried out under the high vacuum of 0.1Pa or the high-purity argon gas protection atmosphere of bulk purity >=99.999%；Strip casting process is pure in volume
It is carried out under the argon gas protection atmosphere of degree >=99.9%.
The method that the Ni-based non-crystalline thin-band is continuously prepared in melting kettle, is directly melted using alloy raw material
Refining, or melted using melted master alloy.
The method that the Ni-based non-crystalline thin-band is continuously prepared passes through the cloth head piece size of cloth stem bar lower end, casting roll roller
Seam value, roll casting speed, copper casting roll, steel casting roll, the casting-milling technology parameter control solidification cooling of casting roll cooling water inflow reach
To 1000~75000 DEG C/s.
The method that the Ni-based non-crystalline thin-band is continuously prepared, the cloth head piece of cloth stem bar lower end are designed as rectangle or a row
Circle, rectangle width are 0.2~1mm, and round diameter is 0.5~2mm；Cloth stream mode is divided into three kinds: being directly injected into roll gap method, list
Side flow coat method or bilateral flow coat method；Cloth head piece material is the SiO for being not easy to react with alloy melt2Or BN.
The method that the Ni-based non-crystalline thin-band is continuously prepared, the preheating temperature range of cloth stem bar are 1000~1300
DEG C, the preheating temperature range of diversion pipe is 950~1000 DEG C.
The method that the Ni-based non-crystalline thin-band is continuously prepared, strip are stablized in strip casting process, by controlling alloy stream
The alloy pool on amount control casting roll top is highly stable, and the width control by alloy pool surface along casting roll roller diameter direction exists
Within 10mm.
The method that the Ni-based non-crystalline thin-band is continuously prepared, the casting roll copper or steel alloy system good using thermal conductivity
Standby, casting roll roller diameter is 220mm~510mm, roll surface roughness Ra≤10 μm.
The method that the Ni-based non-crystalline thin-band is continuously prepared, casting roll cold in-water temperature are controlled at 5~12 DEG C, out
Coolant-temperature gage is controlled at 5~15 DEG C, by controlling water flow, makes water calefactive interzone less than 3 DEG C.
Advantage and beneficial effect of the present invention are:
1, the present invention makes full use of strip continuous casting technology continuously to prepare block amorphous alloy, prepared by alloy thin band
Journey one step forming, process are short；Alloy cooled and solidified process is thermally conductive good by pressure, and cooling rate is fast；It both can be right using the raw material of industry
It is prepared by amorphous alloy ribbon.
2, for block amorphous alloy progressive forming process, big cooling rate and good stability are essential.And
Mode is simple, and alloy pool is wider because it is cast for general casting and rolling installation, so that cooling rate of the alloy in shallow supercooling liquid phase region is smaller, it is difficult
To form amorphous alloy.The characteristics of present invention is solidified according to bulk amorphous alloy takes in conjunction with double-roller rolling technology and gos deep into roll gap casting
Or side flow coat method, alloy pool is narrow, cooling rate is big, deformation is small.Its principle, structures and methods are there is not yet open report.This project
Group also carries out sufficient engineering practice, and realizes the amorphous band continuous casting and rolling of 12m or more length, 0.2~0.75mm thickness
Process is realized.
3, the present invention provides a kind of ni-based amorphous alloy that 0.1~1mm thickness is continuously quickly prepared using the raw material of industry
The method of strip.It is at being grouped as are as follows: NiaZrbTicAldNbeHff, a, b, c, d, e, f are atomic percent, wherein 40≤a≤
70；0≤b≤35；0≤c≤20；0≤d≤10；0≤e≤20；0≤f≤10.Complete molten metal melt is led in the invention
Cloth flowing water mouth is crossed by after liquid stream homogeneously broadening, the casting gate coincideing with roller gap is directly injected into roll gap depths, is equably filled
Full entire roll gap, and realize small Liquid level.The alloy melt for being filled with roll gap is contacted with casting roll roller, and heat is made to pass through roll
Thermally conductive loss.And deeply casting can make alloy that can obtain great cooling velocity in rigid injection, to inhibit the shape of nucleus
At with grow up.In addition, the pressure that casting generates can make alloy conduct heat outward accelerations, increase alloy cooling rate.Moreover, because alloy is molten
The reduction of pond liquid level width and roll seam width ratio can reduce its casting deflection, to reduce because amorphous after cooling closes
Gold guarantees being carried out continuously for strip casting process because of the stuck phenomenon that intensity is excessively high and occurs.Also, obtain more free body
Product, so that amorphous service life, stability and glass-forming ability significantly improve.
4, the entire strip casting process of the present invention all occurs in seal closure, and Ar gas is filled in seal closure as protective gas, is guaranteed
Alloy melt does not contact during being solidified to solid with oxygen, prevents the generation of oxidative phenomena, inhibits the forming core of alloy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the casting and rolling device that the Ni-based non-crystalline thin-band of the present invention is continuously prepared.In figure: 1 vacuum sense
Answer smelting furnace, 2 melting kettles, 3 diversion pipes, 4 slide valves, 5 tundish, 6 stoppers, 7 tundish crucibles, 8 cloth stem bars, 9 casting rolls, 10
Sealing protective, 11 Cast Strips, 12 row's rollers, 13 taking-up equipments.
Fig. 2 is the structural schematic diagram of double roller unilateral side flow coat method preparation amorphous alloy.In figure: 8 cloth stem bars, 9 casting rolls, 14 is unilateral
Outlet, 15 alloy melts.
Fig. 3 is the structural schematic diagram of double roller bilateral flow coat method preparation amorphous alloy.In figure: 8 cloth stem bars, 9 casting rolls, 15 alloys
Melt, the outlet of 16 bilaterals.
Specific embodiment
As shown in Figure 1, the casting and rolling device that the Ni-based non-crystalline thin-band of the present invention is continuously prepared, specifically includes that vacuum induction is molten
Furnace 1, melting kettle 2, diversion pipe 3, slide valve 4, tundish 5, stopper 6, tundish crucible 7, cloth stem bar 8, casting roll 9, sealing
Protective cover 10, Cast Strip 11, row's roller 12, taking-up equipment 13 etc., specific structure is as follows:
The bottom opening of vacuum induction melting furnace 1 is communicated by slide valve 4 with the top opening of tundish 5, tundish 5
Bottom opening is communicated with the top opening of sealing protective 10；Setting melting kettle 2 and diversion pipe 3 in vacuum induction melting furnace 1,
Diversion pipe 3 is located at the side of melting kettle 2, and diversion pipe 3 is vertically arranged, lower port and 7 phase of tundish crucible in tundish 5
It is corresponding.When melting obtains Ni-based amorphous master alloy melt in vacuum induction melting furnace 1, it is poured into diversion pipe 3, diversion pipe 3
The top opening of the bottom opening and tundish 5 across vacuum induction melting furnace 1 is moved down, Ni-based amorphous master alloy melt is through water conservancy diversion
Pipe 3 enters in tundish crucible 7.
Stopper 6 is vertically arranged in tundish crucible 7, and 6 lower end of stopper clogs the bottom opening of tundish 5, on cloth stem bar 8
Side connects the bottom opening of tundish 5, and is vertically inserted in two casting rolls 9 across the top opening of sealing protective 10.
Roller 12 and taking-up equipment 13 are arranged in setting below casting roll 9 in sealing protective 10, form Cast Strip between the row's roller 12 being oppositely arranged
The arc-shaped uniform arrangement of roller 12 is arranged in 11 channel, and the top for arranging roller 12 is corresponding with the roll gap between two casting rolls 9, arranges roller 12
Lower part it is corresponding with the import of taking-up equipment 13.When opening stopper 6, the alloy melt in tundish crucible 7 passes through cloth stream
The uniform cloth of mouth 8 flows to the roll gap between two casting rolls 9, and is configured to Cast Strip 11 in gap cooling, and Cast Strip 11 is by 9 lower section of casting roll
Opposite row's roller 12 import it is coiled by taking-up equipment 13.
As shown in Fig. 2, the structure of double roller unilateral side flow coat method preparation amorphous alloy, bottom side in cloth stem bar 8 with one
9 corresponding section of casting roll is equipped with single side outlet 14, and the alloy melt 15 in cloth stem bar 8 flows through single side outlet 14, along corresponding casting
Roller 9 forms amorphous band by outflow between two casting rolls 9.
As shown in figure 3, the structure of double roller bilateral flow coat method preparation amorphous alloy, bottom opposite sides in cloth stem bar 8 with
9 corresponding section of casting roll is respectively equipped with bilateral outlet 16, and the alloy melt 15 in cloth stem bar 8 flows through bilateral outlet 16, respectively along institute
Corresponding casting roll 9 is compiled in casting roll roll gap, and casting is configured to amorphous band.
In the specific implementation process, ni-based amorphous alloy of the present invention at being grouped as are as follows: NiaZrbTicAldNbeHff, a, b,
C, d, e, f are atomic percent, wherein 40≤a≤70；0≤b≤35；0≤c≤20；0≤d≤10；0≤e≤20；0≤f≤
10.Preparation method is characterized in the characteristics of combining metal double-roller rolling and amorphous continuous coo1ing to shape, by alloy raw material or tentatively
Master alloy obtained melting in vacuum induction melting furnace 1 obtains Ni-based amorphous master alloy melt.After temperature control reaches requirement, it is filled with
Argon gas simultaneously opens the slide valve 4 between vacuum induction melting furnace 1 and tundish 5, and Ni-based amorphous master alloy melt is passed through pre- hot-fluid
Road (diversion pipe 3) imports in the tundish 5 with high-purity argon gas protection.After the flow control stopper 6 of tundish 5 is opened, alloy melt
15 inject after the uniform cloth stream of cloth stem bar 8 in the roll gap of casting roll 9, are amorphous band, amorphous ribbon by 9 cooling forming of water-cooled casting rolls
Material continues to cool down and import taking-up equipment 13 through arranging roller 12.The casting machine that entire casting-cooling-coiling process is protected in high-purity argon gas
It is completed in cavity.
In the following, the present invention is further illustrated with reference to the drawings and specific embodiments.
Embodiment one
Alloying component: Ni40Cu5Ti16Zr28Hf1Al10(atomic percent at.%, similarly hereinafter)；
Cloth stream mode: go deep into roll gap cloth stream；
Preparation flow:
A. match 20kg raw material by atomic percent, put into vacuum induction melting furnace, and be evacuated to 0.05Pa, it is right
Alloy raw material is heated to it and is completely melt to melt, and in 1500 DEG C of continuation melting 15min.
B. vacuum pump is closed, the high-purity argon gas of bulk purity 99.999% is filled with into vacuum induction melting furnace to atmosphere
Pressure opens slide valve, puts down diversion pipe, and alloy is imported high-purity argon gas through diversion pipe (preheating temperature of diversion pipe is 950 DEG C)
In the tundish of protection.
C. alloy is after tundish soaking, opens stopper, and by alloy melt, by cloth stem bar, (preheating temperature of cloth stem bar is
1200 DEG C) uniformly cloth flow in casting roll roll gap, make alloy be quickly cooled down casting forming, alloy melt cooling velocity be 10000 DEG C/
s.Its parameter is as shown in table 1 below.
Table 1 tests major parameter
| Casting roll roller speed | 0.3m/s | Smelting temperature | 1500℃ |
| Roll gap opening width | 0.4mm | Continue smelting time | 10min |
| Roller diameter | 300mm | Tundish temperature | 1200℃ |
| Casting roll width | 110mm | Casting-rolling force | About 44KN |
| Casting roll coolant water temperature | 5℃ | Cast Strip width | 30mm |
Test obtains 0.45 millimeters thick amorphous band.
Embodiment two
Alloying component: Ni61Zr28Nb7Al4；
Cloth stream mode: go deep into roll gap cloth stream；
Preparation flow:
A. match 20kg raw material by atomic percent, put into vacuum induction melting furnace, and be evacuated to 0.03Pa, it is right
Alloy raw material is heated to it and is completely melt to melt, and in 1500 DEG C of continuation melting 20min.
B. vacuum pump is closed, the high-purity argon gas of bulk purity 99.999% is filled with into vacuum induction melting furnace to atmosphere
Pressure opens slide valve, puts down diversion pipe, and alloy is imported high-purity argon gas through diversion pipe (preheating temperature of diversion pipe is 1000 DEG C)
In the tundish of protection.
C. alloy is after tundish soaking, opens stopper, and by alloy melt, by cloth stem bar, (preheating temperature of cloth stem bar is
1200 DEG C) uniformly cloth flow in casting roll roll gap, make alloy be quickly cooled down casting forming, alloy melt cooling velocity be 20000 DEG C/
s.Its parameter is as shown in table 2 below.
Table 2 tests major parameter
| Casting roll roller speed | 1m/s | Smelting temperature | 1500℃ |
| Roll gap opening width | 0.2mm | Continue smelting time | 20min |
| Roller diameter | 300mm | Tundish temperature | 1200℃ |
| Casting roll width | 110mm | Casting-rolling force | About 50KN |
| Casting roll coolant water temperature | 5℃ | Cast Strip width | 50mm |
Test obtains 0.2mm thickness amorphous band.
Embodiment three
Alloying component: Ni40Cu5Ti16Zr28Hf1Al10；
Cloth stream mode: go deep into roll gap cloth stream；
Preparation flow:
A. match 20kg raw material by atomic percent, put into vacuum induction melting furnace, and be evacuated to 0.08Pa, it is right
Alloy raw material is heated to it and is completely melt to melt, and in 1500 DEG C of continuation melting 15min.
B. vacuum pump is closed, the high-purity argon gas of bulk purity 99.999% is filled with into vacuum induction melting furnace to atmosphere
Pressure opens slide valve, puts down diversion pipe, and alloy is imported high-purity argon gas through diversion pipe (preheating temperature of diversion pipe is 1000 DEG C)
In the tundish of protection.
C. alloy is after tundish soaking, opens stopper, and by alloy melt, by cloth stem bar, (preheating temperature of cloth stem bar is
1200 DEG C) uniformly cloth flow in casting roll roll gap, make alloy be quickly cooled down casting forming, alloy melt cooling velocity be 25000 DEG C/
s.Its parameter is as shown in table 1 below.
Table 1 tests major parameter
| Casting roll roller speed | 0.5m/s | Smelting temperature | 1500℃ |
| Roll gap opening width | 0.4mm | Continue smelting time | 10min |
| Roller diameter | 500mm | Tundish temperature | 1200℃ |
| Casting roll width | 200mm | Casting-rolling force | About 44KN |
| Casting roll coolant water temperature | 5℃ | Cast Strip width | 30mm |
Test obtains 0.45 millimeters thick amorphous band.
Above-described embodiment is merely to illustrate technical characterstic of the invention, rather than is limiting the scope of the invention,
Purpose is elaborated to the present invention.But the equivalent substitution that all spirits accordingly are substantially done, without departing from the present invention
The scheme of technical spirit is all within protection scope of the present invention.
Claims (10)
1. a kind of method that Ni-based non-crystalline thin-band is continuously prepared, which is characterized in that sequentially include the following steps:
(1) set component master alloy melting, ingredient are as follows: Ni are pressedaZrbTicAldNbeHff, a, b, c, d, e, f are atomic percent
Than wherein 40≤a≤70；0≤b≤35；0≤c≤20；0≤d≤10；0≤e≤20；0≤f≤10；By alloy raw material or just
It walks master alloy obtained and is put into melting kettle melting to being completely melt, continue melting after fusing, be higher than 200 DEG C of alloy melting point
5~20min of melting at a temperature of above, melts alloy sufficiently；
(2) alloy melt is imported in tundish by the diversion pipe of preheating, tundish temperature is higher than alloy melting point 100~300
DEG C, make alloy samming in tundish, the casting time control alloyage degree of superheat is 100~300 DEG C；
(3) amorphous thin ribbon forming process: opening stopper, and alloy melt is flowed in casting roll roll gap by the uniform cloth of cloth stem bar, is made
Alloy is quickly cooled down casting forming；In strip casting process, alloy by casting roll conduct heat be quickly cooled down, cooling velocity be 1000~
75000 DEG C/s, the casting-rolling force that by control roll casting speed be 0.05~3m/s, the control of casting-rolling force size is every 1cm width Cast Strip
For 2~15kN, casting roll roll gap opening width is set as 0.1~1mm, goes out roll temperature to regulate and control alloy thin band, and alloy is gone out roller
Temperature control is in the crystallization temperature Tx for being less than alloy；
(4) alloy Cast Strip is cooling again through row's roller and to import coiling machine coiled；In the preparation process of Cast Strip, entire casting-cooling-volume
Process is taken to complete in the casting machine cavity that high-purity argon gas is protected.
2. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that connected using double roller therapy
The ni-based amorphous alloy strip of continuous quickly preparation 0.1~1mm thickness.
3. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that foundry alloy melting mistake
Journey and samming storing process all in the case where the high-purity argon gas of the high vacuum of < 0.1Pa or bulk purity >=99.999% protects atmosphere into
Capable；Strip casting process is carried out in the case where the argon gas of bulk purity >=99.9% protects atmosphere.
4. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that in melting kettle,
Melting directly is carried out using alloy raw material, or is melted using melted master alloy.
5. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that by under cloth stem bar
Cloth head piece size, casting roll gap values between rollers, roll casting speed, copper casting roll, steel casting roll, the casting-rolling technology of the casting roll cooling water inflow ginseng at end
Number control solidification cooling reaches 1000~75000 DEG C/s.
6. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that cloth stem bar lower end
Cloth head piece is designed as rectangle or a row is round, and rectangle width is 0.2~1mm, and round diameter is 0.5~2mm；Cloth stream mode is divided into
Three kinds: being directly injected into roll gap method, unilateral flow coat method or bilateral flow coat method；Cloth head piece material is to be not easy to react with alloy melt
SiO2Or BN.
7. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that the preheating of cloth stem bar
Temperature range is 1000~1300 DEG C, and the preheating temperature range of diversion pipe is 950~1000 DEG C.
8. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that strip stablizes casting
In the process, the alloy pool for controlling casting roll top by control alloy flow is highly stable, and by alloy pool surface along casting roll
The width in roller diameter direction controls within 10mm.
9. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that casting roll is using thermally conductive
Property good copper or steel alloy preparation, casting roll roller diameter is 220mm~510mm, roll surface roughness Ra≤10 μm.
10. the method that Ni-based non-crystalline thin-band according to claim 1 is continuously prepared, which is characterized in that casting roll cooling water
At 5~12 DEG C, leaving water temperature is controlled at 5~15 DEG C for inflow temperature control, by controlling water flow, makes water calefactive interzone less than 3
℃。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523939A (en) * | 2019-10-18 | 2019-12-03 | 中冶赛迪工程技术股份有限公司 | A kind of vertical pouring casting and rolling machine |
| CN114559001A (en) * | 2022-03-08 | 2022-05-31 | 太原科技大学 | High-temperature alloy double-roller casting and rolling process |
| CN115283629A (en) * | 2022-08-02 | 2022-11-04 | 太原科技大学 | Method for preparing nickel-based high-temperature alloy by using double-roller casting and rolling process |
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