CN108220585A - Method for annealing, annealing system and bell furnace - Google Patents
Method for annealing, annealing system and bell furnace Download PDFInfo
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- CN108220585A CN108220585A CN201711273481.3A CN201711273481A CN108220585A CN 108220585 A CN108220585 A CN 108220585A CN 201711273481 A CN201711273481 A CN 201711273481A CN 108220585 A CN108220585 A CN 108220585A
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- annealing
- bell furnace
- inner cover
- steel
- rolling oil
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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
- C21D9/54—Furnaces for treating strips or wire
- C21D9/663—Bell-type furnaces
-
- 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
- C21D1/26—Methods of annealing
-
- 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
- C21D11/00—Process control or regulation for heat treatments
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention provides a kind of method for annealing, annealing system and bell furnace, wherein, include for the method for annealing of bell furnace：Detect the rolling oil mass of steel surface；When rolling oil mass more than pre-set threshold value, preset temperature is warming up to before steel annealing and keeps the temperature the first prefixed time interval；It anneals to steel, wherein, preset temperature corresponds to the volatilization temperature of ROLLING OIL.By technical scheme of the present invention, steel can be kept the temperature into preset time before annealing operation when steel surface ROLLING OIL is excessive, so as to promote the volatilization of ROLLING OIL, increase the qualification rate of steel after annealing, reduce the carbon deposition quantity inside bell furnace in annealing process.
Description
Technical field
The present invention relates to metallurgical technology field, in particular to a kind of method for annealing, a kind of annealing system and one kind
Bell furnace.
Background technology
Bell type annealing furnace is to remove the carbon distribution generated in annealing process at present, is mainly arranged by exhaust pipe line
It puts, and the condensate inside periodic cleaning pipeline.In the actual production process, when producing silicon steel, since surface of steel plate remains
ROLLING OIL in comprising largely containing silicon impurities, after equipment long-play, carbon distribution cannot be arranged by exhaust pipe line completely
It puts, part is caused to remain in inner cover side wall, so as to cause the decline of product quality.
Invention content
The present invention is directed at least solve one of technical problem present in the prior art or the relevant technologies.
For this purpose, one aspect of the present invention is, a kind of method for annealing is provided.
Another aspect of the present invention is, provides a kind of annealing system.
An additional aspect of the present invention is, provides a kind of bell furnace.
In view of this, according to the first aspect of the invention, the present invention provides a kind of method for annealing, for bell furnace,
Including：Detect the rolling oil mass of steel surface；When rolling oil mass more than pre-set threshold value, default temperature is warming up to before steel annealing
It spends and keeps the temperature the first prefixed time interval；It anneals to steel, wherein, preset temperature corresponds to the volatilization temperature of ROLLING OIL.
In the technical scheme, the rolling oil mass of steel surface is detected first, when the rolling oil mass of steel surface is less,
Steel will not generate more carbon distribution in annealing process, without being handled；It is more than in the rolling oil mass of steel surface default
During threshold values, steel surface rolling oil mass is more at this time, if can reduce the quality of steel after annealing without processing, and can make cover
Carbon distribution is generated in formula stove, therefore is warming up to preset temperature before steel annealing at this time and keeps the temperature the first prefixed time interval, then
It anneals to steel.Wherein, preset temperature corresponds to the volatilization temperature of steel rolling oil, keeps the temperature the first prefixed time interval energy
Enough enable steel surface ROLLING OIL volatilize it is more, so as to reduce in annealing process because rolling Chuck Steak cause to volatilize it is endless
Entirely, it causes coil of strip surface blackening surface quality poor and because the impurity that vaporization at high temperature generates cannot be completely exhausted out, carbonization is caused to accumulate
Tire out the possibility happened in bell furnace inner surface, increase the quality of steel after annealing, increase product qualification rate, reduce cover
Formula stove carbon deposition quantity internal after annealing operation is conducive to increase the time that bell furnace is worked continuously, so as to increase production efficiency,
Increase factory's benefit.
In the above-mentioned technical solutions, it is preferable that further include：Increase the intake of hydrogen in bell furnace, until intake reaches
To preset upper limit.
In the technical scheme, on the one hand increasing the intake of hydrogen in bell furnace will can wave in time in insulating process
The ROLLING OIL of hair is excluded in stove, is conducive to the quick volatilization of ROLLING OIL, and then shorten annealing time, improves production efficiency, another
Aspect can reduce the production quantity of carbon distribution using the reproducibility of hydrogen, so as to the obstruction that has to the carbon distribution inside bell furnace
Effect, convenient for reducing the carbon deposition quantity inside bell furnace.Until intake reaches preset upper limit, stop increasing hydrogen in bell furnace
Intake.
In the above-mentioned technical solutions, it is preferable that bell furnace includes table and inner cover, and method for annealing further includes：Every second
Prefixed time interval clears up the carbon distribution on the table and inner cover of bell furnace.
In the technical scheme, every the second prefixed time interval, the carbon distribution on the table and inner cover of bell furnace is carried out
Cleaning closes the possibility that carbon distribution is excessive on inner cover so as to reduce prevention bell-type furnace coil base, reduces the influence to subsequent anneal process,
Increase the qualification rate of the product of bell furnace production, increase factory's benefit.
In the above-mentioned technical solutions, it is preferable that table further includes the motor with inner cover power connector, and method for annealing also wraps
It includes：Inner cover is sling so that the table of inner cover and bell furnace has gap and starts the motor of table so that inner cover rotation third is preset
Time interval.
In the technical scheme, when starting the motor of table so that inner cover rotates, the air-flow of high speed can wash away inner cover
Inner surface so as to fulfill the cleaning to carbon distribution and dust on inner cover, reduces the carbon distribution on inner cover, and then reduce in bell furnace
Carbon distribution increases the qualification rate of the product of bell furnace production.
In the above-mentioned technical solutions, it is preferable that further include：Every the 4th prefixed time interval, connected with to bell furnace
Discharge pipe line carries out airtight test.
In the technical scheme, every the 4th prefixed time interval, the discharge pipe line connected with to bell furnace carries out airtight
Property inspection, so that it is determined that whether the sealing performance of discharge pipe line is good, reduce reduces bell-type due to discharge pipe line air-tightness is poor
The possibility of the qualification rate of the product of stove production.
In the above-mentioned technical solutions, it is preferable that the numberical range of preset temperature is 280 DEG C -350 DEG C.
In the technical scheme, the numberical range of preset temperature is 280 DEG C -350 DEG C, and in this section, ROLLING OIL can
Reach volatilization temperature, so as to which ROLLING OIL is made comparatively fast to volatilize, reduce influence annealing process due to ROLLING OIL retains excessive can
It can property.
Wherein it is preferred to preset temperature is 350 DEG C.
The technical solution of second aspect of the present invention provides a kind of annealing system, for bell furnace, including：Detection unit,
For detecting the rolling oil mass of steel surface；Judging unit, for judging to roll whether oil mass is more than pre-set threshold value；Warm keeping sheet
Member, for when rolling oil mass more than pre-set threshold value, being warming up to preset temperature before steel annealing and keeping the temperature the first preset time
Interval；Annealing unit, for bell furnace to be controlled to anneal steel, wherein, preset temperature corresponds to the volatilization temperature of ROLLING OIL
Degree.
In the technical scheme, the rolling oil mass of detection unit detection steel surface, judging unit judge ROLLING OIL first
Whether amount is more than pre-set threshold value, and when the judgment result is No, i.e. when the rolling oil mass of steel surface is less, steel are in annealing process
In will not generate more carbon distribution, without being handled；Judging result is when being, i.e., the rolling oil mass of steel surface is more than default
During threshold values, steel surface rolling oil mass is more at this time, if can reduce the quality of steel after annealing without processing, and can make cover
Carbon distribution is generated in formula stove, therefore is warming up between preset temperature and the first preset time of heat preservation in steel annealing preincubation unit at this time
Every subsequent annealing unit anneals to steel.Wherein, preset temperature corresponds to the volatilization temperature of steel rolling oil, keeps the temperature the
It is more that one prefixed time interval can enable the ROLLING OIL of steel surface volatilize, so as to reduce in annealing process because ROLLING OIL compared with
It is cause volatilization incomplete more, cause coil of strip surface blackening surface quality poor and because the impurity that vaporization at high temperature generates cannot be complete
Discharge causes carbonization to be accumulated in the possibility happened of bell furnace inner surface, increases the quality of steel after annealing, increases production
Product qualification rate reduces bell furnace carbon deposition quantity internal after annealing operation, is conducive to increase the time that bell furnace is worked continuously, from
And increase production efficiency, increase factory's benefit.
In the above-mentioned technical solutions, it is preferable that further include：Hydrogen is passed through unit, for increasing the logical of hydrogen in bell furnace
Enter amount, until intake reaches preset upper limit.
In the technical scheme, hydrogen, which is passed through unit, increases the intake one side of hydrogen in bell furnace in insulating process
The ROLLING OIL of volatilization can be excluded in stove in time, be conducive to the quick volatilization of ROLLING OIL, and then shorten annealing time, improve life
Efficiency is produced, the production quantity of carbon distribution on the other hand can be reduced using the reproducibility of hydrogen, so as to the carbon distribution inside bell furnace
Generation plays the role of obstruction, convenient for reducing the carbon deposition quantity inside bell furnace.Until intake reaches preset upper limit, stop increasing cover
The intake of hydrogen in formula stove.
In the above-mentioned technical solutions, it is preferable that bell furnace includes table and inner cover, and annealing system further includes：Carbon distribution is cleared up
Unit, for every the second prefixed time interval, clearing up the carbon distribution on the table and inner cover of bell furnace.
In the technical scheme, every the second prefixed time interval, carbon distribution clears up table and inner cover of the unit to bell furnace
On carbon distribution cleared up, close the excessive possibility of carbon distribution on inner cover so as to reduce prevention bell-type furnace coil base, reduce to subsequently moving back
The influence of fiery process increases the qualification rate of the product of bell furnace production, increases factory's benefit.
In the above-mentioned technical solutions, it is preferable that table further includes the motor with inner cover power connector, and annealing system also wraps
It includes：Inner cover washes away unit, for slinging inner cover so that the table of inner cover and bell furnace has gap；And start the motor of table
So that inner cover rotates third prefixed time interval.
In the technical scheme, when inner cover washes away the motor of unit starting table so that inner cover rotates, the air-flow energy of high speed
The inner surface of inner cover is enough washed away, so as to fulfill the cleaning to carbon distribution and dust on inner cover, reduces the carbon distribution on inner cover, and then subtract
Carbon distribution in few bell furnace increases the qualification rate of the product of bell furnace production.
In the above-mentioned technical solutions, it is preferable that further include：Airtight test unit, for every between the 4th preset time
Every the discharge pipe line connected with to bell furnace carries out airtight test.
In the technical scheme, the row connected every the 4th prefixed time interval, airtight test unit with to bell furnace
It puts pipeline and carries out airtight test, so that it is determined that whether the sealing performance of discharge pipe line is good, reduce because of discharge pipe line air-tightness
The possibility of the qualification rate of product that is poor and reducing bell furnace production.
In the above-mentioned technical solutions, it is preferable that the numberical range of preset temperature is 280 DEG C -350 DEG C.
In the technical scheme, the numberical range of preset temperature is 280 DEG C -350 DEG C, and in this section, ROLLING OIL can
Reach volatilization temperature, so as to which ROLLING OIL is made comparatively fast to volatilize, reduce influence annealing process due to ROLLING OIL retains excessive can
It can property.
The technical solution of third aspect present invention provides a kind of bell furnace, including moving back in any of the above-described technical solution
Fiery system.
In the technical scheme, when the annealing system in bell furnace works, institute in any of the above-described technical solution can be realized
The method for annealing stated, so as to which when steel surface ROLLING OIL is excessive, steel are kept the temperature preset time before annealing operation, from
And promote the volatilization of ROLLING OIL, increase the qualification rate of steel after annealing, reduce the carbon deposition quantity inside bell furnace in annealing process.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1 shows the flow diagram of 1 method for annealing according to one embodiment of present invention；
Fig. 2 shows the flow diagrams of according to one embodiment of present invention 6 method for annealing；
Fig. 3 shows the structure diagram of 7 annealing system according to one embodiment of present invention；
Fig. 4 shows the structure diagram of 11 annealing system according to one embodiment of present invention.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that aforementioned aspect of the present invention, feature and advantage
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Referring to Fig. 1 to Fig. 4 description according to some embodiments of the invention.
Embodiment 1：
Fig. 1 shows the flow diagram of the method for annealing of the present embodiment.
As shown in Figure 1, a kind of method for annealing, for bell furnace, including：
Step S102 detects the rolling oil mass of steel surface；
Step S104 when rolling oil mass and being more than pre-set threshold value, preset temperature is warming up to before steel annealing and keeps the temperature the
One prefixed time interval；
Step S106, anneals to steel.
Wherein, in the present embodiment, preset temperature is 350 DEG C, and the first prefixed time interval is 1h (Hour).
In the present embodiment, step S102 detects the rolling oil mass of steel surface, less in the rolling oil mass of steel surface
When, steel will not generate more carbon distribution in annealing process, without being handled；Step S104, in the rolling of steel surface
When oil mass is more than pre-set threshold value, steel surface rolling oil mass is more at this time, if can reduce the matter of steel after annealing without processing
Amount, and can make to generate carbon distribution in bell furnace, therefore is warming up to before steel annealing 350 DEG C at this time and keeps the temperature 1h, step S106,
It anneals to steel.Wherein, preset temperature corresponds to the volatilization temperature of steel rolling oil, keeps the temperature the first prefixed time interval energy
Enough enable steel surface ROLLING OIL volatilize it is more, so as to reduce in annealing process because rolling Chuck Steak cause to volatilize it is endless
Entirely, it causes coil of strip surface blackening surface quality poor and because the impurity that vaporization at high temperature generates cannot be completely exhausted out, carbonization is caused to accumulate
Tire out the possibility happened in bell furnace inner surface, increase the quality of steel after annealing, increase product qualification rate, reduce cover
Formula stove carbon deposition quantity internal after annealing operation is conducive to increase the time that bell furnace is worked continuously, so as to increase production efficiency,
Increase factory's benefit.
Embodiment 2：
On the basis of embodiment 1, further include：Increase the intake of hydrogen in bell furnace, until intake reaches default
The upper limit.
In the present embodiment, add the intake of hydrogen in bell furnace on the one hand being capable of rolling volatilization in time in insulating process
Liquefaction is excluded in stove, is conducive to the quick volatilization of ROLLING OIL, and then shorten annealing time, improves production efficiency, on the other hand profit
The production quantity of carbon distribution can be reduced with the reproducibility of hydrogen, so as to play the role of obstruction to the generation of the carbon distribution inside bell furnace,
Convenient for reducing the carbon deposition quantity inside bell furnace.Until intake reaches preset upper limit, stop increasing being passed through for hydrogen in bell furnace
Amount.
Embodiment 3：
On the basis of embodiment 2, bell furnace includes table and inner cover, and method for annealing further includes：When second is default
Between be spaced, the carbon distribution on the table and inner cover of bell furnace is cleared up.
Wherein, in the present embodiment, the second prefixed time interval corresponds to the annealing cycle.
In the present embodiment, every an annealing cycle, i.e., every time after the completion of annealing, on the table and inner cover of bell furnace
Carbon distribution is cleared up, and is closed the possibility that carbon distribution is excessive on inner cover so as to reduce prevention bell-type furnace coil base, is reduced to subsequent anneal mistake
The influence of journey increases the qualification rate of the product of bell furnace production, increases factory's benefit.
Embodiment 4：
On the basis of embodiment 3, table further includes the motor with inner cover power connector, and method for annealing further includes：By in
Cover is sling so that the table of inner cover and bell furnace has gap and starts the motor of table so that between inner cover rotation third preset time
Every.
Wherein, in the present embodiment, third prefixed time interval is 3min (Minutes)
In the present embodiment, start the motor of table so that inner cover rotates 3min, the air-flow of high speed can wash away the interior of inner cover
The carbon distribution on inner cover so as to fulfill the cleaning to carbon distribution and dust on inner cover, is reduced, and then reduce the product in bell furnace in surface
Carbon increases the qualification rate of the product of bell furnace production.
Embodiment 5：
On the basis of embodiment 4, further include：Every the 4th prefixed time interval, the delivery pipe connected with to bell furnace
Line carries out airtight test.
Wherein, in the present embodiment, the 4th prefixed time interval is 3Months.
In the present embodiment, every 3Months, the discharge pipe line connected with to bell furnace carries out airtight test, so as to really
Whether the sealing performance for determining discharge pipe line is good, and reduce reduces the product that bell furnace produces due to discharge pipe line air-tightness is poor
The possibility of qualification rate.
Embodiment 6：
Fig. 2 shows the flow diagrams of the method for annealing of the present embodiment.
As shown in Fig. 2, a kind of method for annealing, for bell furnace, including：
Step S202 detects the rolling oil mass of steel surface；
Step S204 when rolling oil mass and being more than pre-set threshold value, preset temperature is warming up to before steel annealing and keeps the temperature the
One prefixed time interval；
Step S206 increases the intake of hydrogen in bell furnace, until intake reaches preset upper limit；
Step S208, anneals to steel；
Step S210 every the second prefixed time interval, clears up the carbon distribution on the table and inner cover of bell furnace；
Step S212, every the 4th prefixed time interval, pair discharge pipe line connected with bell furnace carries out airtight test；
Step S214 slings inner cover so that the table of inner cover and bell furnace has gap and starts the motor of table so that interior
Cover rotation third prefixed time interval.
Wherein, in the present embodiment, preset temperature be 350 DEG C, the first prefixed time interval be 1h (Hour), second it is default when
Between interval correspond to the annealing cycle, third prefixed time interval be 3min, the 4th prefixed time interval be 3Months.
In the present embodiment, step S202 detects the rolling oil mass of steel surface, less in the rolling oil mass of steel surface
When, steel will not generate more carbon distribution in annealing process, without being handled；Step S204, in the rolling of steel surface
When oil mass is more than pre-set threshold value, steel surface rolling oil mass is more at this time, if can reduce the matter of steel after annealing without processing
Amount, and can make to generate carbon distribution in bell furnace, therefore be warming up to 350 DEG C before steel annealing at this time and keep the temperature 1h, heat preservation 1h makes
The ROLLING OIL of steel surface can volatilize more, so as to reduce in annealing process because rolling Chuck Steak causes volatilization incomplete, make
Into coil of strip surface blackening surface quality it is poor and because vaporization at high temperature generate impurity cannot be completely exhausted out, cause carbonization be accumulated in
The possibility happened of bell furnace inner surface increases the quality of steel after annealing, increases product qualification rate, reduces bell furnace
The internal carbon deposition quantity after annealing operation.Step S206 increases the intake of hydrogen in bell furnace, until intake reaches default
The upper limit, on the one hand stove can be excluded by the ROLLING OIL of volatilization in time in insulating process by increasing the intake of hydrogen in bell furnace
It is interior, be conducive to the quick volatilization of ROLLING OIL, and then shorten annealing time, improve production efficiency, on the other hand going back using hydrogen
Originality can reduce the production quantity of carbon distribution, so as to play the role of obstruction to the generation of the carbon distribution inside bell furnace, be covered convenient for reducing
The carbon deposition quantity of formula furnace interior.Until intake reaches preset upper limit, stop increasing the intake of hydrogen in bell furnace.Step
S208 anneals to steel, and after ROLLING OIL volatilization is more, annealing operation is carried out to steel, so as to reduce product in bell furnace
The possibility of carbon, while increase the qualification rate of product.Step S210, every time after annealing, to the table and inner cover of bell furnace
On carbon distribution cleared up, close the excessive possibility of carbon distribution on inner cover so as to reduce prevention bell-type furnace coil base, reduce to subsequently moving back
The influence of fiery process increases the qualification rate of the product of bell furnace production, increases factory's benefit.Step S212, every 3Months couples
The discharge pipe line connected with bell furnace carries out airtight test, so that it is determined that whether the sealing performance of discharge pipe line is good, reduces
The possibility of the qualification rate of the product of bell furnace production is reduced due to discharge pipe line air-tightness is poor.Step S214, inner cover is hung
It rises so that the table of inner cover and bell furnace has gap and starts the motor of table so that inner cover rotation third prefixed time interval, interior
During cover rotation, the air-flow of high speed can wash away the inner surface of inner cover, so as to fulfill the cleaning to carbon distribution and dust on inner cover, subtract
Carbon distribution on few inner cover, and then the carbon distribution in bell furnace is reduced, increase the qualification rate of the product of bell furnace production.
Embodiment 7：
Fig. 3 shows the structure diagram of the annealing system of the present embodiment.
As shown in figure 3, a kind of annealing system 300, for bell furnace, including：
Detection unit 302, for detecting the rolling oil mass of steel surface；
Judging unit 304, for judging to roll whether oil mass is more than pre-set threshold value；
Heat-insulation unit 306, for when rolling oil mass more than pre-set threshold value, preset temperature to be warming up to before steel annealing simultaneously
Keep the temperature the first prefixed time interval；
Annealing unit 308, for bell furnace to be controlled to anneal steel.
In the present embodiment, detection unit 302 detects the rolling oil mass of steel surface first, and judging unit 304 judges rolling
Whether oil mass is more than pre-set threshold value, and when the judgment result is No, i.e. when the rolling oil mass of steel surface is less, steel are annealed
More carbon distribution will not be generated in journey, without being handled；Judging result is when being, i.e., the rolling oil mass of steel surface is more than pre-
If during threshold values, steel surface rolling oil mass is more at this time, if can reduce the quality of steel after annealing without processing, and can make
Carbon distribution is generated in bell furnace, therefore bell furnace is controlled to be warming up to preset temperature in steel annealing preincubation unit 306 at this time and protected
Warm first prefixed time interval, subsequent annealing unit 308 control bell furnace to anneal steel.Wherein, preset temperature corresponds to
In the volatilization temperature of steel rolling oil, the first prefixed time interval of heat preservation can enable the ROLLING OIL of steel surface volatilize compared with
It is more, so as to reduce in annealing process because rolling Chuck Steak causes volatilization incomplete, cause coil of strip surface blackening surface quality poor, with
And because the impurity that vaporization at high temperature generates cannot be completely exhausted out, carbonization is caused to be accumulated in the possibility happened of bell furnace inner surface
Property, increase the quality of steel after annealing, increase product qualification rate, reduce bell furnace carbon deposition quantity internal after annealing operation, have
Conducive to the time that bell furnace is worked continuously is increased, so as to increase production efficiency, increase factory's benefit.
Embodiment 8：
On the basis of embodiment 7, further include：Hydrogen is passed through unit, for increasing the intake of hydrogen in bell furnace, directly
Reach preset upper limit to intake.
In the present embodiment, the intake that hydrogen is passed through hydrogen in unit increase bell furnace on the one hand can in insulating process
The ROLLING OIL of volatilization is excluded in stove in time, is conducive to the quick volatilization of ROLLING OIL, and then shorten annealing time, improves production effect
On the other hand rate can reduce the production quantity of carbon distribution using the reproducibility of hydrogen, so as to the generation to the carbon distribution inside bell furnace
There is obstruction, convenient for reducing the carbon deposition quantity inside bell furnace.Until intake reaches preset upper limit, stop increasing bell furnace
The intake of middle hydrogen.
Embodiment 9：
On the basis of embodiment 8, bell furnace includes table and inner cover, and annealing system further includes：Carbon distribution clears up unit, uses
In every the second prefixed time interval, the carbon distribution on the table and inner cover of bell furnace is cleared up.
In the present embodiment, every the second prefixed time interval, carbon distribution clears up unit on the table and inner cover of bell furnace
Carbon distribution is cleared up, and is closed the possibility that carbon distribution is excessive on inner cover so as to reduce prevention bell-type furnace coil base, is reduced to subsequent anneal mistake
The influence of journey increases the qualification rate of the product of bell furnace production, increases factory's benefit.
Embodiment 10：
On the basis of embodiment 9, table further includes the motor with inner cover power connector, and annealing system further includes：Inner cover
Unit is washed away, for inner cover being sling so that the table of inner cover and bell furnace has gap and starts the motor of table so that inner cover revolves
Turn third prefixed time interval.
In the present embodiment, when inner cover washes away the motor of unit starting table so that inner cover rotates, the air-flow of high speed can rush
The inner surface of brush inner cover so as to fulfill the cleaning to carbon distribution and dust on inner cover, reduces the carbon distribution on inner cover, and then reduce cover
Carbon distribution in formula stove increases the qualification rate of the product of bell furnace production.
Embodiment 11：
Fig. 4 shows the structure diagram of the annealing system of the present embodiment.
As shown in figure 4, a kind of annealing system 400, for bell furnace, including：
Detection unit 402, for detecting the rolling oil mass of steel surface；
Judging unit 404, for judging to roll whether oil mass is more than pre-set threshold value；
Heat-insulation unit 406, for when rolling oil mass more than pre-set threshold value, preset temperature to be warming up to before steel annealing simultaneously
Keep the temperature the first prefixed time interval；
Annealing unit 408, for bell furnace to be controlled to anneal steel；
Hydrogen is passed through unit 410, for increasing the intake of hydrogen in bell furnace, until intake reaches preset upper limit；
Carbon distribution clears up unit 412, for every the second prefixed time interval, to the carbon distribution on the table and inner cover of bell furnace
It is cleared up；
Inner cover washes away unit 414, for slinging inner cover so that the table of inner cover and bell furnace has gap and starts table
Motor so that inner cover rotate third prefixed time interval；
Airtight test unit 416, for every the 4th prefixed time interval, with to the discharge pipe line that bell furnace connects into
Row airtight test.
Wherein, in the present embodiment, preset temperature be 350 DEG C, the first prefixed time interval be 1h, the second prefixed time interval
Corresponding to the annealing cycle, third prefixed time interval is 3min, and the 4th prefixed time interval is 3Months.
In the present embodiment, detection unit 402 detects the rolling oil mass of steel surface first, and judging unit 404 judges rolling
Whether oil mass is more than pre-set threshold value, and when the judgment result is No, i.e. when the rolling oil mass of steel surface is less, steel are annealed
More carbon distribution will not be generated in journey, without being handled；Judging result is when being, i.e., the rolling oil mass of steel surface is more than pre-
If during threshold values, steel surface rolling oil mass is more at this time, if can reduce the quality of steel after annealing without processing, and can make
Carbon distribution is generated in bell furnace, therefore bell furnace is controlled to be warming up to 350 DEG C in steel annealing preincubation unit 406 at this time and kept the temperature
1h, subsequent annealing unit 408 control bell furnace to anneal steel.Wherein, preset temperature corresponds to waving for steel rolling oil
Send out temperature, that the ROLLING OIL of steel surface can be enable to volatilize is more by heat preservation 1h, so as to reduce in annealing process because ROLLING OIL compared with
It is cause volatilization incomplete more, cause coil of strip surface blackening surface quality poor and because the impurity that vaporization at high temperature generates cannot be complete
Discharge causes carbonization to be accumulated in the possibility happened of bell furnace inner surface, increases the quality of steel after annealing, increases production
Product qualification rate reduces bell furnace carbon deposition quantity internal after annealing operation, is conducive to increase the time that bell furnace is worked continuously, from
And increase production efficiency, increase factory's benefit.On the one hand the intake that hydrogen is passed through hydrogen in the increase bell furnace of unit 410 is being protected
The ROLLING OIL of volatilization can be excluded in stove in time during temperature, when being conducive to the quick volatilization of ROLLING OIL, and then shortening annealing
Between, production efficiency is improved, the production quantity of carbon distribution on the other hand can be reduced using the reproducibility of hydrogen, so as to bell furnace inside
The generation of carbon distribution play the role of obstruction, convenient for reducing the carbon deposition quantity inside bell furnace.Until intake reaches preset upper limit, stop
Only increase the intake of hydrogen in bell furnace.After the completion of this annealing, carbon distribution clears up table and inner cover of the unit 412 to bell furnace
On carbon distribution cleared up, close the excessive possibility of carbon distribution on inner cover so as to reduce prevention bell-type furnace coil base, reduce to subsequently moving back
The influence of fiery process increases the qualification rate of the product of bell furnace production.After the completion of annealing, inner cover washes away the electricity of unit starting table
For machine so that inner cover rotates to be 3min, the air-flow of high speed can wash away the inner surface of inner cover, so as to fulfill to the carbon distribution on inner cover and
The cleaning of dust reduces the carbon distribution on inner cover, and then reduces the carbon distribution in bell furnace, increases the qualification of the product of bell furnace production
Rate.Every 3Months, the discharge pipe line that airtight test unit 416 is connected with to bell furnace carries out airtight test, so as to really
Whether the sealing performance for determining discharge pipe line is good, and reduce reduces the product that bell furnace produces due to discharge pipe line air-tightness is poor
The possibility of qualification rate.
Embodiment 12：
A kind of bell furnace is present embodiments provided, including the annealing system in any of the above-described embodiment.
In the present embodiment, when the annealing system in bell furnace works, it can realize that above-mentioned people cures moving back described in embodiment
Ignition method, so as to which when steel surface ROLLING OIL is excessive, steel are kept the temperature preset time before annealing operation, so as to promote
The volatilization of ROLLING OIL increases the qualification rate of steel after annealing, reduces the carbon deposition quantity inside bell furnace in annealing process.
It, can be in steel table by technical scheme of the present invention above in association with technical scheme of the present invention has been illustrated
When face ROLLING OIL is excessive, steel are kept the temperature into preset time before annealing operation, so as to promote the volatilization of ROLLING OIL, after increasing annealing
The qualification rate of steel reduces the carbon deposition quantity inside bell furnace in annealing process.
In the description of this specification, term " multiple " then refers to two or more, unless otherwise restricted clearly, art
The orientation or position relationship of the instructions such as language " on ", " under " are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplified description rather than instruction imply that signified device or element must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention；Term " connection ", " installation ", " fixation " etc. are equal
It should be interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；Can be
It is connected directly, can also be indirectly connected by intermediary.It for the ordinary skill in the art, can be according to specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of method for annealing, for bell furnace, which is characterized in that including：
Detect the rolling oil mass of steel surface；
When rolling oil mass more than pre-set threshold value, preset temperature is warming up to before the steel annealing and keeps the temperature the first preset time
Interval；
It anneals to the steel,
Wherein, the preset temperature corresponds to the volatilization temperature of the ROLLING OIL.
2. method for annealing according to claim 1, which is characterized in that further include：
Increase the intake of hydrogen in the bell furnace, until the intake reaches preset upper limit.
3. method for annealing according to claim 1, which is characterized in that the bell furnace includes table and inner cover, described to move back
Ignition method further includes：
Every the second prefixed time interval, the carbon distribution on the table and inner cover of the bell furnace is cleared up.
4. method for annealing according to claim 3, which is characterized in that the table further includes and the inner cover power connector
Motor, the method for annealing further includes：
The inner cover is sling so that the table of the inner cover and the bell furnace have gap and start the motor of the table with
Make the inner cover rotation third prefixed time interval.
5. method for annealing according to claim 1, which is characterized in that further include：
Every the 4th prefixed time interval, the discharge pipe line connected with to the bell furnace carries out airtight test.
6. method for annealing according to any one of claim 1 to 5, which is characterized in that the numerical value model of the preset temperature
Enclose is 280 DEG C -350 DEG C.
7. a kind of annealing system, for bell furnace, which is characterized in that including：
Detection unit, for detecting the rolling oil mass of steel surface；
Judging unit, for judging whether the rolling oil mass is more than pre-set threshold value；
Heat-insulation unit, for when rolling oil mass more than pre-set threshold value, preset temperature being warming up to before the steel annealing and is protected
Warm first prefixed time interval；
Annealing unit, for the bell furnace to be controlled to anneal the steel.
8. annealing system according to claim 7, which is characterized in that further include：
Hydrogen is passed through unit, for increasing the intake of hydrogen in the bell furnace, until the intake reaches preset upper limit.
9. annealing system according to claim 7, which is characterized in that the bell furnace includes table and inner cover, described to move back
Fiery system further includes：
Carbon distribution clears up unit, for every the second prefixed time interval, to the carbon distribution on the table and inner cover of the bell furnace into
Row cleaning.
10. annealing system according to claim 9, which is characterized in that the table is further included to be connected with the inner cover power
The motor connect, the annealing system further include：
Inner cover washes away unit, for slinging the inner cover so that the table of the inner cover and the bell furnace has gap and starts
The motor of the table is so that the inner cover rotates third prefixed time interval.
11. annealing system according to claim 7, which is characterized in that further include：
Airtight test unit, for every the 4th prefixed time interval, the discharge pipe line connected with to the bell furnace to carry out
Airtight test.
12. the annealing system according to any one of claim 7 to 11, which is characterized in that the numerical value of the preset temperature
Ranging from 280 DEG C -350 DEG C.
13. a kind of bell furnace, which is characterized in that including the annealing system as described in any one of claim 7 to 12.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0572780A2 (en) * | 1992-04-06 | 1993-12-08 | Ebg Gesellschaft Für Elektromagnetische Werkstoffe Mbh | Process and device for cleaning of metal strip surfaces by gas-washing in hydrogen-rich athmospheres |
| CN202201942U (en) * | 2011-06-24 | 2012-04-25 | 仇文秋 | Inner cover for all-hydrogen cover type annealing furnace |
| CN103757183A (en) * | 2013-12-11 | 2014-04-30 | 宝钢集团新疆八一钢铁有限公司 | Production process for improving cold rolling commercial coil black stripe defect |
| CN107059033A (en) * | 2017-03-27 | 2017-08-18 | 江苏大亚铝业有限公司 | A kind of oil removing process for improving medicinal aluminum foil moistened surface tension force |
| CN107142370A (en) * | 2017-06-25 | 2017-09-08 | 苏州金钜松机电有限公司 | A kind of Medium drawing mach ine annealing regulation system |
| CN107217132A (en) * | 2017-04-20 | 2017-09-29 | 邢台新翔金属材料科技股份有限公司 | The method for removing roller bottom type continuous spheroidizing annealing furnace inner product carbon |
-
2017
- 2017-12-06 CN CN201711273481.3A patent/CN108220585A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0572780A2 (en) * | 1992-04-06 | 1993-12-08 | Ebg Gesellschaft Für Elektromagnetische Werkstoffe Mbh | Process and device for cleaning of metal strip surfaces by gas-washing in hydrogen-rich athmospheres |
| CN202201942U (en) * | 2011-06-24 | 2012-04-25 | 仇文秋 | Inner cover for all-hydrogen cover type annealing furnace |
| CN103757183A (en) * | 2013-12-11 | 2014-04-30 | 宝钢集团新疆八一钢铁有限公司 | Production process for improving cold rolling commercial coil black stripe defect |
| CN107059033A (en) * | 2017-03-27 | 2017-08-18 | 江苏大亚铝业有限公司 | A kind of oil removing process for improving medicinal aluminum foil moistened surface tension force |
| CN107217132A (en) * | 2017-04-20 | 2017-09-29 | 邢台新翔金属材料科技股份有限公司 | The method for removing roller bottom type continuous spheroidizing annealing furnace inner product carbon |
| CN107142370A (en) * | 2017-06-25 | 2017-09-08 | 苏州金钜松机电有限公司 | A kind of Medium drawing mach ine annealing regulation system |
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