CN107354401B - A kind of amorphous alloy magnetism band vacuum heat treatment process - Google Patents
A kind of amorphous alloy magnetism band vacuum heat treatment process Download PDFInfo
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- CN107354401B CN107354401B CN201710633805.3A CN201710633805A CN107354401B CN 107354401 B CN107354401 B CN 107354401B CN 201710633805 A CN201710633805 A CN 201710633805A CN 107354401 B CN107354401 B CN 107354401B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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Abstract
The invention discloses a kind of amorphous alloy magnetism band vacuum heat treatment process, the following steps are included: amorphous alloy magnetism band is turned to circular ring shape, it is placed in closed heat-treatment furnace, and the amorphous alloy magnetism annulus axis direction in closed heat-treatment furnace is mutually parallel, then vacuumizes to closed heat-treatment furnace；External in closed heat-treatment furnace applies longitudinal pulsed magnetic field, then slowly maintains after heating, then cool down；Laterally continue magnetic field in external apply of closed heat-treatment furnace, then slowly maintained after heating, in slow cooling within 100 DEG C, amorphous alloy magnetism annulus is taken out after natural cooling.A kind of amorphous alloy magnetism band vacuum heat treatment process provided by the present invention can be realized the optimization performance of amorphous alloy magnetism band for the amorphous alloy magnetism band of specific alloy elements composition.
Description
Technical field
The present invention relates to a kind of amorphous alloy material fabricating technology field, especially a kind of amorphous alloy magnetism band
Vacuum heat treatment process.
Background technique
Amorphous alloy magnetism band have excellent magnetic property, be mainly used for the small-sized high-accuracy property magnetic core of transformer of coiling,
The products such as current transformer core and voltage transformer magnetic core；Using the magnetism of amorphous alloy magnetism band manufacture relative to silicon
The magnetism of steel disc manufacture, can energy conservation 60%~80%, and preparation process pollution is low, therefore amorphous alloy magnetism band is a kind of
More energy-saving and environment-friendly material.The heat treatment process parameter of amorphous alloy magnetism band is determined to play the quality of its magnetic property and be determined
Property effect, the amorphous alloy magnetism band not through Overheating Treatment, magnetic property index is difficult to meet actual needs, and amorphous closes
It is very low that golden magnetism band is saturated magnetic strength before heat treatment, usually only 1000 mT or so, and iron-loss per unit weight is very before being heat-treated
Greatly, be heat treatment after 10 times.The heat treatment specific process parameter of amorphous alloy magnetism band, with amorphous alloy magnetism band
Alloying element composition have much relations, for different-alloy element composition amorphous alloy magnetism band, need to develop difference
Heat treatment process, to realize the optimization performance of amorphous alloy magnetism band.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of amorphous alloy magnetism band vacuum heat treatment works
Skill can be realized the optimization of amorphous alloy magnetism band for the amorphous alloy magnetism band of specific alloy elements composition
Energy.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of amorphous alloy magnetism band vacuum heat treatment process, comprising the following steps:
Step 1: amorphous alloy magnetism band is turned to circular ring shape, and amorphous alloy magnetism band contain it is following
The element of mass percent: element silicon 8%~12%, boron element 5%~8%, manganese element 1.0%~1.8%, cobalt element 0.5%~
1.3%, the ferro element of vanadium 1.2%~2.2%, carbon 2.5%~4.0%, surplus；
Step 2: the amorphous alloy magnetism annulus of step 1 coiling is placed in closed heat-treatment furnace, and at closed heat
The amorphous alloy magnetism annulus axis direction managed in furnace is mutually parallel, then vacuumizes to closed heat-treatment furnace；
Step 3: applying longitudinal pulsed magnetic field, the magnetic line of force direction of longitudinal pulsed magnetic field in the external of closed heat-treatment furnace
It is parallel with the axis direction of amorphous alloy magnetism annulus, and the magnetic field application frequency of longitudinal pulsed magnetic field is 4~6 Hz, magnetic field is strong
Degree is 0.7~0.9 T, makes closed heat-treatment furnace internal temperature then with 10~20 DEG C of speed per minute, it is warming up to 390~
450 DEG C, then temperature is maintained to heat 20~40 minutes, be then cooled to 200~250 DEG C with 10~20 DEG C of speed per minute；
Step 4: external apply in closed heat-treatment furnace laterally continues magnetic field, laterally continue the magnetic line of force direction in magnetic field
It is vertical with the axis direction of amorphous alloy magnetism annulus, and the magnetic field strength for laterally continuing magnetic field is 0.1~0.3 T, is then made
Closed heat-treatment furnace internal temperature is warming up to 390~450 DEG C with 10~20 DEG C of speed per minute, then maintains temperature heating
It 20~40 minutes, is then cooled within 100 DEG C with 10~20 DEG C of speed per minute, amorphous alloy magnetic is taken out after natural cooling
Property annulus.
As a further improvement of the above technical scheme, in step 2, closed heat-treatment furnace vacuumize to make vacuum
Degree is 0.1 Pa hereinafter, be then filled with nitrogen into closed heat-treatment furnace, make the air pressure in closed heat-treatment furnace reach normal pressure or
More than normal pressure, then vacuumize to closed heat-treatment furnace again makes 0.1 Pa of vacuum degree hereinafter, finally to closed heat treatment
The air pressure for the argon gas protection gas for being filled with argon gas protection gas in furnace, and being filled with is 0.02~0.05 Mpa.
As a further improvement of the above technical scheme, in step 2, the argon gas being filled in closed heat-treatment furnace protects gas
Air pressure be 0.05 Mpa.
Compared with prior art, the beneficial effects of the present invention are:
A kind of amorphous alloy magnetism band vacuum heat treatment process provided by the present invention is formed for specific alloy elements
Amorphous alloy magnetism band, can be realized the optimization performance of amorphous alloy magnetism band, i.e. amorphous alloy magnetism band
Being saturated magnetic strength to be increased by 0.9~1.1 T before being heat-treated is 1.8~2.1 T, and iron-loss per unit weight when 1.35T/50Hz can be with
0.11~0.15 W/kg is reduced to by 1.0~1.7 W/kg before being heat-treated；With preferable comprehensive performance.
Specific embodiment
Carry out the technology contents that present invention be described in more detail below in conjunction with specific embodiments.
Specific embodiment 1
A kind of amorphous alloy magnetism band vacuum heat treatment process provided by the present embodiment, comprising the following steps:
Step 1: amorphous alloy magnetism band is turned to circular ring shape, and amorphous alloy magnetism band contain it is following
The element of mass percent: element silicon 8%~12%, boron element 5%~8%, manganese element 1.0%~1.8%, cobalt element 0.5%~
1.3%, the ferro element of vanadium 1.2%~2.2%, carbon 2.5%~4.0%, surplus.
Step 2: the amorphous alloy magnetism annulus of step 1 coiling is placed in closed heat-treatment furnace, and at closed heat
The amorphous alloy magnetism annulus axis direction managed in furnace is mutually parallel, then vacuumizes to closed heat-treatment furnace, makes true
Reciprocal of duty cycle is 0.1 Pa hereinafter, being then filled with nitrogen into closed heat-treatment furnace, and the air pressure in closed heat-treatment furnace is made to reach normal pressure
Or more than normal pressure, then again closed heat-treatment furnace vacuumize make 0.1 Pa of vacuum degree hereinafter, finally to it is closed heat at
The air pressure for the argon gas protection gas for being filled with argon gas protection gas in reason furnace, and being filled with is 0.03 Mpa.
Step 3: applying longitudinal pulsed magnetic field, the magnetic line of force direction of longitudinal pulsed magnetic field in the external of closed heat-treatment furnace
It is parallel with the axis direction of amorphous alloy magnetism annulus, and it is 5 Hz, magnetic field strength that the magnetic field of longitudinal pulsed magnetic field, which applies frequency,
For 0.8 T, then makes closed heat-treatment furnace internal temperature with 10~20 DEG C of speed per minute, be warming up to 430 DEG C, then maintain
Temperature heats 20~40 minutes, is then cooled to 230 DEG C with 10~20 DEG C of speed per minute.
Step 4: external apply in closed heat-treatment furnace laterally continues magnetic field, laterally continue the magnetic line of force direction in magnetic field
It is vertical with the axis direction of amorphous alloy magnetism annulus, and the magnetic field strength for laterally continuing magnetic field is 0.2 T, then makes closed heat
Treatment furnace internal temperature is warming up to 420 DEG C with 10~20 DEG C of speed per minute, then temperature is maintained to heat 20~40 minutes,
Then it is cooled within 100 DEG C with 10~20 DEG C of speed per minute, amorphous alloy magnetism annulus is taken out after natural cooling.
Specific embodiment 2
A kind of amorphous alloy magnetism band vacuum heat treatment process provided by the present embodiment, specific steps and specific implementation
Example 1 is identical, the difference is that:
Step 2: the air pressure for the argon gas protection gas being filled with is 0.02 Mpa.
Step 3: the magnetic field of longitudinal pulsed magnetic field applies, frequency is 6 Hz, magnetic field strength is 0.9 T, then makes closed heat
Treatment furnace internal temperature is warming up to 450 DEG C with 10~20 DEG C of speed per minute, then temperature is maintained to heat 20~40 minutes,
Then 250 DEG C are cooled to 10~20 DEG C of speed per minute.
Step 4: the magnetic field strength for laterally continuing magnetic field is 0.3 T, then make closed heat-treatment furnace internal temperature with every point
The speed that 10~20 DEG C of clock is warming up to 450 DEG C, then temperature is maintained to heat 20~40 minutes, then with 10~20 DEG C per minute
Speed be cooled within 100 DEG C, after natural cooling take out amorphous alloy magnetism annulus.
Specific embodiment 3
A kind of amorphous alloy magnetism band vacuum heat treatment process provided by the present embodiment, specific steps and specific implementation
Example 1 is identical, the difference is that:
Step 2: the air pressure for the argon gas protection gas being filled with is 0.05 Mpa.
Step 3: the magnetic field of longitudinal pulsed magnetic field applies, frequency is 4 Hz, magnetic field strength is 0.7 T, then makes closed heat
Treatment furnace internal temperature is warming up to 390 DEG C with 10~20 DEG C of speed per minute, then temperature is maintained to heat 20~40 minutes,
Then 200 DEG C are cooled to 10~20 DEG C of speed per minute.
Step 4: the magnetic field strength for laterally continuing magnetic field is 0.1 T, then make closed heat-treatment furnace internal temperature with every point
The speed that 10~20 DEG C of clock is warming up to 390 DEG C, then temperature is maintained to heat 20~40 minutes, then with 10~20 DEG C per minute
Speed be cooled within 100 DEG C, after natural cooling take out amorphous alloy magnetism annulus.
A kind of amorphous alloy magnetism band vacuum heat treatment process, makes amorphous alloy magnetic provided by specific embodiment 1~3
Property band saturation magnetic strength can be increased by 0.9~1.1 T before being heat-treated be 1.8~2.1 T, unit when 1.35T/50Hz
Iron loss can be reduced to 0.11~0.15 W/kg by 1.0~1.7 W/kg before being heat-treated.
The air pressure for the argon gas protection gas being filled with can effectively dilute the oxidizing gas in remaining air when higher, but
When the air pressure of argon gas protection gas is excessively high, then the system pressure that can make during heating is excessively high, affects amorphous alloy magnetism
The internal microstructure of band；When being known by experiment more than 0.05 Mpa, the iron-loss per unit weight of amorphous alloy magnetism band is had
Rise significantly.
Preferable implementation of the invention is illustrated above, certainly, the present invention can also use and above-mentioned implementation
The different form of mode, those skilled in the art's made equivalent transformation on the premise of without prejudice to spirit of the invention
Or corresponding change, all it should belong in protection scope of the present invention.
Claims (1)
1. a kind of amorphous alloy magnetism band vacuum heat treatment process, which comprises the following steps:
Step 1: amorphous alloy magnetism band is turned to circular ring shape, and amorphous alloy magnetism band contains following quality
The element of percentage: element silicon 8%~12%, boron element 5%~8%, manganese element 1.0%~1.8%, cobalt element 0.5%~
1.3%, the ferro element of vanadium 1.2%~2.2%, carbon 2.5%~4.0%, surplus；
Step 2: the amorphous alloy magnetism annulus of step 1 coiling is placed in closed heat-treatment furnace, and closed heat-treatment furnace
In amorphous alloy magnetism annulus axis direction it is mutually parallel, then closed heat-treatment furnace is vacuumized；
Step 3: apply longitudinal pulsed magnetic field in the external of closed heat-treatment furnace, the magnetic line of force direction of longitudinal pulsed magnetic field with it is non-
The axis direction of peritectic alloy magnetism annulus is parallel, and the magnetic field application frequency of longitudinal pulsed magnetic field is 4~6Hz, magnetic field strength is
Then 0.7~0.9T makes closed heat-treatment furnace internal temperature with 10~20 DEG C of speed per minute, is warming up to 390~450 DEG C,
Then it maintains temperature to heat 20~40 minutes, is then cooled to 200~250 DEG C with 10~20 DEG C of speed per minute；
Step 4: external apply in closed heat-treatment furnace laterally continues magnetic field, laterally continue the magnetic line of force direction in magnetic field with it is non-
The axis direction of peritectic alloy magnetism annulus is vertical, and the magnetic field strength for laterally continuing magnetic field is 0.1~0.3T, then makes closed heat
Treatment furnace internal temperature is warming up to 390~450 DEG C with 10~20 DEG C of speed per minute, then maintains temperature heating 20~40
Minute, it is then cooled within 100 DEG C with 10~20 DEG C of speed per minute, amorphous alloy magnetism annulus is taken out after natural cooling
?；
In step 2, vacuumize to closed heat-treatment furnace makes vacuum degree 0.1Pa hereinafter, then into closed heat-treatment furnace
It is filled with nitrogen, the air pressure in closed heat-treatment furnace is made to reach normal pressure or normal pressure or more, then closed heat-treatment furnace is taken out again
Vacuum makes vacuum degree 0.1Pa hereinafter, being finally filled with argon gas protection gas into closed heat-treatment furnace, and the argon gas protection gas being filled with
Air pressure be 0.05MPa.
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