CN114367535B - Aluminum alloy/amorphous alloy rolling composite process with current auxiliary phase regulation - Google Patents
Aluminum alloy/amorphous alloy rolling composite process with current auxiliary phase regulation Download PDFInfo
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- CN114367535B CN114367535B CN202210061143.8A CN202210061143A CN114367535B CN 114367535 B CN114367535 B CN 114367535B CN 202210061143 A CN202210061143 A CN 202210061143A CN 114367535 B CN114367535 B CN 114367535B
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 110
- 238000005096 rolling process Methods 0.000 title claims abstract description 81
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000013329 compounding Methods 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 229910052742 iron Inorganic materials 0.000 claims description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 8
- 229910052726 zirconium Inorganic materials 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000013526 supercooled liquid Substances 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 18
- 230000001276 controlling effect Effects 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 3
- 238000010104 thermoplastic forming Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Laminated Bodies (AREA)
Abstract
The invention belongs to the technical field of metal material rolling, and particularly relates to an aluminum alloy/amorphous alloy rolling composite process with current auxiliary phase regulation. In the rolling process, the adopted rolling composite device comprises a rolling unit, a material carrying electrifying unit, a current control unit and a closed box body; the rolling unit, the material loading electrifying unit and the current control unit are positioned in the closed box body; the outside of the airtight box body is provided with a vacuum pump, a nitrogen cylinder and a detection mechanism for detecting the oxygen content and the pressure in the airtight box body. Based on the device, the invention realizes the temperature control and phase control of the amorphous material through current regulation and control, and effectively eliminates the defects of low heating efficiency and long heating time. The invention can control the temperature of the amorphous material within the range of the supercooled liquid region and perform phase detection, thereby utilizing the superplasticity of the amorphous material to perform rolling compounding.
Description
Technical Field
The invention belongs to the technical field of metal material rolling, and particularly relates to an aluminum alloy/amorphous alloy rolling composite process with current auxiliary phase regulation.
Background
Amorphous alloys (iron-based amorphous alloys, nickel-based amorphous alloys or zirconium-based amorphous alloys) have many unique properties such as excellent magnetic properties, corrosion resistance, wear resistance, high strength, hardness and toughness, high resistivity, etc., and have important strategic application values in many high and new technical fields. However, the plastic deformation mechanism of the amorphous alloy is completely different from that of crystalline metal, the amorphous alloy is usually extremely poor in plasticity at room temperature, and is difficult to form and compound, and atoms in the amorphous alloy are in disordered arrangement and have no lattice defects such as dislocation, so that the localized deformation in the amorphous alloy is difficult to slip like dislocation, the room temperature deformation is mainly concentrated in localized shear zones, and the problem of cracking easily occurs in the rolling process, so that the further development of the amorphous alloy is influenced.
At present, the free volume content and the distribution form of the interior of the amorphous alloy are regulated and controlled by a mode of prefabricating a shear band, such as shot blasting, cold rolling and the like, or a mode of rapid annealing, cold-hot circulation and the like, so that the room temperature plasticity of the amorphous alloy can be enhanced to a certain extent. However, the plasticizing range is limited, so that the room temperature forming performance of the amorphous alloy still can not effectively meet the requirements, and therefore, the amorphous alloy is compounded with other metals with higher specific strength and good plasticity in a rolling compounding mode, and the advantages of the amorphous alloy are fully exerted.
Amorphous alloy thermoplastic forming generally achieves greater material deformation and processing efficiency than room temperature plastic forming. During the continuous temperature rise, the amorphous alloy may be converted to a viscous supercooled liquid state within a certain temperature range well below its melting point. The supercooled liquid state can maintain a specific shape and has lower viscosity, and in this state, the amorphous alloy can realize thermoplastic forming like a thermoplastic polymer material.
The super-plasticity of the amorphous alloy exists between the supercooling liquid phase region, namely the glass transition temperature and the crystallization temperature, but the temperature range of the supercooling liquid phase region is influenced by the temperature rising rate, and the fast temperature rising can lead the amorphous alloy to obtain a wider thermoplastic forming region, so the fast temperature rising and the accurate temperature control are key factors for promoting the plastic forming of the amorphous alloy, and the application of the plastic forming of the amorphous alloy in rolling can be promoted by realizing the temperature control and the phase control of the amorphous alloy through current regulation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a current auxiliary phase-regulated aluminum alloy/amorphous alloy rolling compounding process, which aims to rapidly and accurately control the temperature and the phase of an amorphous material by regulating current parameters and promote the rolling compounding with the aluminum alloy.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
the invention provides an aluminum alloy/amorphous alloy rolling composite device with current auxiliary phase regulation and control, which comprises a rolling unit, a loading electrifying unit, a current control unit and a closed box body, wherein the rolling unit is connected with the current control unit; the rolling unit, the material loading electrifying unit and the current control unit are positioned in the closed box body; the outside of the closed box body is provided with a vacuum pump, a nitrogen cylinder and a detection mechanism for detecting the oxygen content and the pressure in the closed box body;
the rolling unit comprises an uncoiling mechanism A, an uncoiling mechanism B, an upper roller, a lower roller and a coiling mechanism; the center of the upper roller and the center of the lower roller are positioned on the same axis, and a composite channel is formed between the upper roller and the lower roller; the uncoiling mechanism A and the uncoiling mechanism B are positioned at the left sides of the upper roller and the lower roller, and the winding mechanism is positioned at the right sides of the upper roller and the lower roller; a guide roller A and a guide roller C are arranged between the uncoiling mechanism A and the upper roller, a guide roller B is arranged between the uncoiling mechanism B and the lower roller, and the uncoiling mechanism A and the guide roller A are respectively positioned above the uncoiling mechanism B and the guide roller B; the aluminum alloy strip of the coil to be uncoiled is arranged on the uncoiling mechanism A, the amorphous alloy strip of the coil to be uncoiled is arranged on the uncoiling mechanism B, the aluminum alloy strip on the uncoiling mechanism A passes through the guide roller A and the guide roller C after being uncoiled and then passes through the composite channel, the amorphous alloy strip on the uncoiling mechanism B passes through the guide roller B after being uncoiled and then passes through the composite channel, and the composite strip formed by rolling the aluminum alloy strip and the amorphous alloy strip through the composite channel is coiled through the coiling mechanism; the guide roller A, the guide roller C, the upper roller and the lower roller are respectively provided with a resistor roaster A, a resistor roaster B, a resistor roaster C and a resistor roaster D; the right lower part of the guide roller A is provided with a polishing roller for realizing online polishing of the aluminum alloy belt in the rolling process;
the material carrying electrifying unit comprises a force arm A, a force arm B and a guide rail; the force arm A and the force arm B are respectively arranged at the left side and the right side of the guide rail and can move left and right on the guide rail; the electric brushes A and B are respectively arranged on the force arm A and the force arm B, and can clamp the amorphous alloy belt and are not easy to deform under the movement of the force arm A and the force arm B;
the current control unit comprises a pulse power supply, control equipment, an infrared thermometer A, an infrared thermometer B and an infrared thermometer C; the positive electrode of the pulse power supply is connected with the electric brush A through a wire, and the negative electrode of the pulse power supply is connected with the electric brush B through a wire; the control equipment is connected with the pulse power supply and used for controlling the current parameters of the pulse power supply; the control equipment is connected with the infrared thermometer A, the infrared thermometer B and the infrared thermometer C and is used for collecting temperature data of the infrared thermometer A, the infrared thermometer B and the infrared thermometer C respectively; the infrared thermometer A is positioned between the amorphous alloy belt and the guide rail and is used for measuring the temperature of the amorphous alloy belt in the heating process; the infrared thermometer B is positioned at the left upper part of the lower roller and is used for measuring the temperature of the amorphous alloy strip before rolling; the infrared thermometer C is positioned at the left lower part of the upper roller and is used for measuring the temperature of the aluminum alloy strip before rolling.
Further, the current control unit 3 further includes a resistance calculation element for determining whether the amorphous alloy ribbon is crystallized or not by a resistance change.
Furthermore, the uncoiling mechanism A, the uncoiling mechanism B, the upper roller, the lower roller, the coiling mechanism, the guide roller A, the guide roller B and the guide roller C are all made of insulating ceramic materials.
The invention also provides a rolling compounding process by adopting the aluminum alloy/amorphous alloy rolling compounding device regulated by the current auxiliary phase, which comprises the following steps:
s1, selecting an aluminum alloy belt meeting the width requirement, and arranging an amorphous alloy belt on an uncoiling mechanism A and an uncoiling mechanism B respectively;
s2, connecting the aluminum alloy strip and the amorphous alloy strip between an upper roller and a lower roller, and adjusting the rolling reduction rate;
s3, adjusting the distance between the force arm A and the force arm B;
s4, starting the resistor roaster A and the resistor roaster B, and heating the guide roller A and the guide roller C;
s5, starting a polishing roller to polish the aluminum alloy belt;
s6, starting the resistor roaster C and the resistor roaster D, and heating the upper roller and the lower roller;
s7, vacuumizing the sealed box body, and introducing nitrogen;
s8, starting a pulse power supply, and continuously controlling the temperature of the amorphous alloy strip through control equipment, wherein a rolling unit, a loading electrifying unit and a current control unit form closed-loop temperature control rolling;
s9, warehousing the finished product of the rolled aluminum alloy/amorphous alloy composite belt.
Further, the amorphous alloy in the step S1 is an iron-based amorphous alloy, a nickel-based amorphous alloy or a zirconium-based amorphous alloy.
Further, the rolling reduction in the step S2 is 30% to 40%, preferably 35%.
Further, in the step S3, the distance between the two arms of force is 40mm-100mm, preferably 70mm.
Further, the heating temperature in the step S4 is 100-300 ℃, preferably 200 ℃.
Further, the heating temperature in the step S6 is 100-300 ℃, preferably 200 ℃.
Further, the current of the pulse power supply in the step S8 is 10-100A, and the power is 30-500W.
The invention has the action principle that: the super plasticity of the amorphous alloy (iron-based amorphous alloy, nickel-based amorphous alloy or zirconium-based amorphous alloy) exists between the supercooled liquid phase region, namely the glass transition temperature and the crystallization temperature, and by utilizing the characteristics, the amorphous alloy can be rolled and compounded with other metals in the supercooled liquid phase region through rapid heating and accurate temperature control, so that the advantages of the composite metal are fully exerted.
Compared with the prior art, the invention has the following beneficial effects:
the device for controlling the temperature and the phase of the amorphous material by current regulation and rolling and compounding effectively eliminates the defects of low heating efficiency and long heating time. The infrared thermometer is connected with the control equipment, and the temperature of the amorphous material can be controlled within the range of the supercooled liquid region and phase detection can be carried out by modifying the current parameters, so that the superplasticity of the amorphous material is utilized for rolling compounding.
Drawings
FIG. 1 is a schematic structural diagram of an aluminum alloy/amorphous alloy rolling composite device controlled by a current auxiliary phase;
fig. 2 is a schematic view of the structure of a rolling unit 1 according to the present invention;
FIG. 3 is a schematic view of a rolling compounding process of the present invention;
FIG. 4 is a graph showing the resistance temperature curve, the resistance differential curve and DSC curve of the Fe-based amorphous alloy of example 2;
FIG. 5 is a graph showing the temperature change curve of the Fe-based amorphous alloy of example 2 with the assistance of pulse currents of three different parameters and XRD curves before and after crystallization;
fig. 6 is a microscopic morphology diagram of the aluminum alloy/iron-based amorphous alloy composite plate strip interface prepared in example 2.
Detailed Description
The following examples are given by taking the technical scheme of the invention as a premise, and detailed implementation modes and specific operation processes are given, but the protection scope of the patent of the invention is not limited, and all technical schemes obtained by adopting equivalent substitution or equivalent transformation are within the protection scope of the invention.
Example 1
An aluminum alloy/amorphous alloy rolling composite device with current auxiliary phase regulation comprises a rolling unit 1, a loading energizing unit 2, a current control unit 3 and a closed box body 4; the rolling unit 1, the material carrying electrifying unit 2 and the current control unit 3 are positioned in the closed box body 4; the outside of the closed box body 4 is provided with a vacuum pump 5, a nitrogen bottle 6 and a detection mechanism 7 for detecting the oxygen content and the pressure in the closed box body 4;
the rolling unit 1 comprises an uncoiling mechanism A101, an uncoiling mechanism B102, an upper roller 103, a lower roller 104 and a coiling mechanism 105; the center of the upper roller 103 and the center of the lower roller 104 are positioned on the same axis, and a composite channel 106 is formed between the upper roller 103 and the lower roller 104; the uncoiling mechanism A101 and the uncoiling mechanism B102 are positioned at the left sides of the upper roller 103 and the lower roller 104, and the coiling mechanism 105 is positioned at the right sides of the upper roller 103 and the lower roller 104; a guide roller A107 and a guide roller C109 are arranged between the uncoiling mechanism A101 and the upper roller 103, a guide roller B108 is arranged between the uncoiling mechanism B102 and the lower roller 104, and the uncoiling mechanism A101 and the guide roller A107 are respectively positioned above the uncoiling mechanism B102 and the guide roller B108; the aluminum alloy strip of the package to be uncoiled is arranged on the uncoiling mechanism A101, the amorphous alloy strip of the package to be uncoiled is arranged on the uncoiling mechanism B102, the aluminum alloy strip on the uncoiling mechanism A101 passes through the guide roller A107 and the guide roller C109 after being uncoiled and then passes through the composite channel 106, the amorphous alloy strip on the uncoiling mechanism B102 passes through the guide roller B108 after being uncoiled and then passes through the composite channel 106, and the composite strip formed by rolling the aluminum alloy strip and the amorphous alloy strip through the composite channel 106 passes through the rolling mechanism 105 to finish rolling; the guide roller A107, the guide roller C109, the upper roller 103 and the lower roller 104 are respectively provided with a resistor roaster A110, a resistor roaster B111, a resistor roaster C112 and a resistor roaster D113; the lower right of the guide roller A107 is provided with a grinding roller 114 for realizing online grinding of the aluminum alloy strip in the rolling process;
the loading electrifying unit 2 comprises a force arm A201, a force arm B202 and a guide rail 203; the force arm A201 and the force arm B202 are respectively arranged at the left side and the right side of the guide rail 203 and can move left and right on the guide rail 203; the electric brushes A204 and the electric brushes B205 are respectively arranged on the force arm A201 and the force arm B202, and the electric brushes A204 and the electric brushes B205 can clamp the amorphous alloy belt and are not easy to deform under the movement of the force arm A201 and the force arm B202;
the current control unit 3 comprises a pulse power supply 301, a control device 302, an infrared thermometer A303, an infrared thermometer B304 and an infrared thermometer C305; the positive electrode of the pulse power supply 301 is connected with the electric brush A204 through a wire, and the negative electrode of the pulse power supply 301 is connected with the electric brush B205 through a wire; the control device 302 is connected with the pulse power supply 301 and is used for controlling current parameters of the pulse power supply 301; the control device 302 is connected with the infrared thermometer A303, the infrared thermometer B304 and the infrared thermometer C305 and is used for collecting temperature data of the infrared thermometer A303, the infrared thermometer B304 and the infrared thermometer C305 respectively; the infrared thermometer A303 is positioned between the amorphous alloy belt and the guide rail 203 and is used for measuring the temperature of the amorphous alloy belt in the heating process; the infrared thermometer B304 is positioned at the upper left of the lower roller 104 and is used for measuring the temperature of the amorphous alloy strip before rolling; the infrared thermometer C305 is positioned at the left lower part of the upper roller 103 and is used for measuring the temperature of the aluminum alloy strip before rolling.
Further, the current control unit 3 further includes a resistance calculation element for determining whether the amorphous alloy ribbon is crystallized or not by a resistance change.
Further, the unwinding mechanism a101, the unwinding mechanism B102, the upper roller 103, the lower roller 104, the winding mechanism 105, the guide roller a107, the guide roller B108 and the guide roller C109 are all made of insulating ceramic materials.
Example 2
A rolling composite process for aluminum alloy/iron-based amorphous alloy regulated by current auxiliary phase comprises the following steps:
s1, an aluminum alloy belt with the width of 20mm and an iron-based amorphous alloy belt are respectively arranged on an uncoiling mechanism A101 and an uncoiling mechanism B102;
s2, connecting two strips between an upper roller 103 and a lower roller 104, and adjusting the rolling reduction, wherein the rolling reduction is set to be 35% because the strips are thin strips;
s3, adjusting the distance between the left arm and the right arm, wherein the distance between the arms is set to be 70mm because the resistivity of the iron-based amorphous alloy is higher and the temperature rising speed is high;
s4, starting the resistor roaster A110 and the resistor roaster B111, and heating the guide roller to 200 ℃;
s5, starting a polishing roller 114 to polish the aluminum alloy belt;
s6, starting a resistance roaster C112 and a resistance roaster D113, and heating the upper roller 103 and the lower roller 104 to 200 ℃;
s7, vacuumizing the sealed box body 4, and introducing nitrogen;
s8, starting a pulse power supply 301, controlling the current to be 10-100A and the power to be 30-500W, and continuously controlling the temperature of the iron-based amorphous alloy strip to be 550-580 ℃ and preferably 565 ℃ before rolling; the heating rate is controlled to be 400 ℃/s to 600 ℃/s, preferably 500 ℃/s;
s9, warehousing the finished product of the rolled aluminum alloy/iron-based amorphous alloy composite belt.
In the process of rolling, the temperature of the iron-based amorphous alloy is quickly increased by current assistance, as shown in fig. 4, in the process of temperature increase, along with the change of the resistance of the iron-based amorphous alloy, after the resistance reaches the highest point A of the resistance of the iron-based amorphous alloy, the resistance is quickly reduced, and then when the temperature is kept between the glass transition temperature C and the crystallization temperature D, whether the iron-based amorphous alloy is in a supercooled liquid phase region can be detected by the resistance. As shown in fig. 5, when a 20A current is applied to the fe-based amorphous alloy, the temperature of the fe-based amorphous alloy is rapidly increased and then rapidly decreased, and XRD test is performed on the fe-based amorphous alloy after the current treatment is applied, it is seen that crystallization of the fe-based amorphous alloy has occurred, and a change in resistance causes a temperature turn, so that it can be determined whether crystallization of the fe-based amorphous alloy occurs through a sudden change in a temperature change curve.
The microcosmic appearance characterization of the interface of the aluminum alloy/iron-based amorphous alloy composite plate strip prepared by the embodiment is shown in fig. 6, and rolling of the iron-based amorphous alloy and the aluminum alloy is regulated and controlled through a current auxiliary phase, so that rolling compounding of the iron-based amorphous alloy and the aluminum alloy is realized.
Example 3
A rolling composite process for aluminum alloy/zirconium-based amorphous alloy regulated by current auxiliary phase comprises the following steps:
s1, an aluminum alloy belt and a zirconium-based amorphous alloy belt with the width of 20mm are selected and respectively arranged on an uncoiling mechanism A101 and an uncoiling mechanism B102;
s2, connecting the two strips between an upper roller 103 and a lower roller 104, and setting the rolling reduction to be 30%;
s3, adjusting the distance between the left arm and the right arm to be 100mm;
s4, starting the resistor roaster A110 and the resistor roaster B111, and heating the guide roller to 300 ℃;
s5, starting a polishing roller 114 to polish the aluminum alloy belt;
s6, starting a resistance roaster C112 and a resistance roaster D113, and heating the upper roller 103 and the lower roller 104 to 300 ℃;
s7, vacuumizing the sealed box body 4, and introducing nitrogen;
s8, starting a pulse power supply 301, controlling the current to be 10-100A and the power to be 30-500W, and continuously controlling the temperature of the zirconium-based amorphous alloy strip to be 350-430 ℃ and preferably 390 ℃ before rolling; the heating rate is controlled to be 400 ℃/s to 600 ℃/s, preferably 500 ℃/s;
s9, warehousing the finished product of the rolled aluminum alloy/zirconium-based amorphous alloy composite belt.
Example 4
A rolling composite process for aluminum alloy/nickel-based amorphous alloy regulated by current auxiliary phase comprises the following steps:
s1, an aluminum alloy belt and a nickel-based amorphous alloy belt, wherein the width of each aluminum alloy belt is 20mm, are respectively arranged on an uncoiling mechanism A101 and an uncoiling mechanism B102;
s2, connecting the two strips between an upper roller 103 and a lower roller 104, and adjusting the rolling reduction to 40%;
s3, adjusting the distance between the left arm and the right arm to be 40mm;
s4, starting the resistor roaster A110 and the resistor roaster B111, and heating the guide roller to 100 ℃;
s5, starting a polishing roller 114 to polish the aluminum alloy belt;
s6, starting a resistance roaster C112 and a resistance roaster D113, and heating the upper roller 103 and the lower roller 104 to 100 ℃;
s7, vacuumizing the sealed box body 4, and introducing nitrogen;
s8, starting a pulse power supply 301, controlling the current to be 10-100A and the power to be 30-500W, and continuously controlling the temperature of the nickel-based amorphous alloy strip to be 540-590 ℃, preferably 565 ℃ before rolling; the heating rate is controlled to be 400 ℃/s to 600 ℃/s, preferably 500 ℃/s; the method comprises the steps of carrying out a first treatment on the surface of the
S9, warehousing the rolled aluminum alloy/nickel-based amorphous alloy composite strip finished product.
Claims (10)
1. An aluminum alloy/amorphous alloy rolling composite device with current auxiliary phase regulation and control is characterized in that: comprises a rolling unit (1), a loading electrifying unit (2), a current control unit (3) and a closed box body (4); the rolling unit (1), the material carrying electrifying unit (2) and the current control unit (3) are positioned in the closed box body (4); the outside of the closed box body (4) is provided with a vacuum pump (5), a nitrogen cylinder (6) and a detection mechanism (7) for detecting the oxygen content and the pressure in the closed box body (4);
the rolling unit (1) comprises an uncoiling mechanism A (101), an uncoiling mechanism B (102), an upper roller (103), a lower roller (104) and a coiling mechanism (105); the center of the upper roller (103) and the center of the lower roller (104) are positioned on the same axis, and a composite channel (106) is formed between the upper roller (103) and the lower roller (104); the uncoiling mechanism A (101) and the uncoiling mechanism B (102) are positioned on the left sides of the upper roller (103) and the lower roller (104), and the coiling mechanism (105) is positioned on the right sides of the upper roller (103) and the lower roller (104); a guide roller A (107) and a guide roller C (109) are arranged between the uncoiling mechanism A (101) and the upper roller (103), a guide roller B (108) is arranged between the uncoiling mechanism B (102) and the lower roller (104), and the uncoiling mechanism A (101) and the guide roller A (107) are respectively positioned above the uncoiling mechanism B (102) and the guide roller B (108); the aluminum alloy strip of the package to be uncoiled is arranged on the uncoiling mechanism A (101), the amorphous alloy strip of the package to be uncoiled is arranged on the uncoiling mechanism B (102), the aluminum alloy strip on the uncoiling mechanism A (101) passes through the guide roller A (107) and the guide roller C (109) after being uncoiled and then passes through the composite channel (106), the amorphous alloy strip on the uncoiling mechanism B (102) passes through the guide roller B (108) after being uncoiled and then passes through the composite channel (106), and the composite strip formed by rolling the aluminum alloy strip and the amorphous alloy strip through the composite channel (106) is coiled through the coiling mechanism (105); the guide roller A (107), the guide roller C (109), the upper roller (103) and the lower roller (104) are respectively provided with a resistor roaster A (110), a resistor roaster B (111), a resistor roaster C (112) and a resistor roaster D (113); a grinding roller (114) is arranged at the right lower part of the guide roller A (107) and is used for realizing online grinding of the aluminum alloy strip in the rolling process;
the carrying electrifying unit (2) comprises a force arm A (201), a force arm B (202) and a guide rail (203); the force arm A (201) and the force arm B (202) are respectively arranged at the left side and the right side of the guide rail (203) and can move left and right on the guide rail (203); the electric brushes A (204) and the electric brushes B (205) are respectively arranged on the force arm A (201) and the force arm B (202), and the electric brushes A (204) and the electric brushes B (205) can clamp the amorphous alloy belt and are not easy to deform under the movement of the force arm A (201) and the force arm B (202);
the current control unit (3) comprises a pulse power supply (301), control equipment (302), an infrared thermometer A (303), an infrared thermometer B (304) and an infrared thermometer C (305); the positive electrode of the pulse power supply (301) is connected with the electric brush A (204) through a wire, and the negative electrode of the pulse power supply (301) is connected with the electric brush B (205) through a wire; the control device (302) is connected with the pulse power supply (301) and is used for controlling the current parameter of the pulse power supply (301); the control equipment (302) is connected with the infrared thermometer A (303), the infrared thermometer B (304) and the infrared thermometer C (305) and is used for collecting temperature data of the infrared thermometer A (303), the infrared thermometer B (304) and the infrared thermometer C (305) respectively; the infrared thermometer A (303) is positioned between the amorphous alloy belt and the guide rail (203) and is used for measuring the temperature of the amorphous alloy belt in the heating process; the infrared thermometer B (304) is positioned at the upper left of the lower roller (104) and is used for measuring the temperature of the amorphous alloy strip before rolling; the infrared thermometer C (305) is positioned at the left lower part of the upper roller (103) and is used for measuring the temperature of the aluminum alloy strip before rolling.
2. The aluminum alloy/amorphous alloy rolling composite device controlled by a current auxiliary phase according to claim 1, wherein the device comprises: the current control unit (3) also comprises a resistance calculation element which is used for judging whether the amorphous alloy strip is crystallized or not through resistance change.
3. The aluminum alloy/amorphous alloy rolling composite device controlled by a current auxiliary phase according to claim 1, wherein the device comprises: the uncoiling mechanism A (101), the uncoiling mechanism B (102), the upper roller (103), the lower roller (104), the coiling mechanism (105), the guide roller A (107), the guide roller B (108) and the guide roller C (109) are all made of insulating ceramic materials.
4. A process for rolling and compounding based on the current auxiliary phase controlled aluminum alloy/amorphous alloy rolling and compounding device as claimed in claim 1, characterized by comprising the following steps:
s1, selecting an aluminum alloy belt meeting the width requirement, and arranging an amorphous alloy belt on an uncoiling mechanism A (101) and an uncoiling mechanism B (102) respectively;
s2, connecting an aluminum alloy belt and an amorphous alloy belt between an upper roller (103) and a lower roller (104), and adjusting rolling reduction;
s3, adjusting the distance between the force arm A (201) and the force arm B (202);
s4, starting the resistor roaster A (110) and the resistor roaster B (111), and heating the guide roller A (107) and the guide roller C (109);
s5, starting a polishing roller (114) to polish the aluminum alloy belt;
s6, starting a resistor roaster C (112) and a resistor roaster D (113), and heating the upper roller (103) and the lower roller (104);
s7, vacuumizing the sealed box body (4) to a vacuum state, and introducing nitrogen;
s8, starting a pulse power supply (301), and continuously controlling the temperature of the amorphous alloy strip through a control device (302), wherein a rolling unit (1), a material carrying electrifying unit (2) and a current control unit (3) form closed-loop temperature control rolling;
s9, warehousing the finished product of the rolled aluminum alloy/amorphous alloy composite belt.
5. The aluminum alloy/amorphous alloy rolling composite process controlled by a current auxiliary phase according to claim 4, wherein the process comprises the following steps: the amorphous alloy in the step S1 is an iron-based amorphous alloy, a nickel-based amorphous alloy or a zirconium-based amorphous alloy.
6. The aluminum alloy/amorphous alloy rolling composite process controlled by a current auxiliary phase according to claim 4, wherein the process comprises the following steps: the rolling reduction rate in the step S2 is 30% -40%.
7. The aluminum alloy/amorphous alloy rolling composite process controlled by a current auxiliary phase according to claim 4, wherein the process comprises the following steps: in the step S3, the distance between the two arms of force is 40mm-100mm.
8. The aluminum alloy/amorphous alloy rolling composite process controlled by a current auxiliary phase according to claim 4, wherein the process comprises the following steps: the heating temperature in the step S4 is 100-300 ℃.
9. The aluminum alloy/amorphous alloy rolling composite process controlled by a current auxiliary phase according to claim 4, wherein the process comprises the following steps: the heating temperature in the step S6 is 100-300 ℃.
10. The aluminum alloy/amorphous alloy rolling composite process controlled by a current auxiliary phase according to claim 4, wherein the process comprises the following steps: the current of the pulse power supply (301) in the step S8 is 10-100A, and the power is 30-500W.
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