CN106755930B - Front-to-back continuous heating method for annealing furnace - Google Patents
Front-to-back continuous heating method for annealing furnace Download PDFInfo
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- CN106755930B CN106755930B CN201710015459.2A CN201710015459A CN106755930B CN 106755930 B CN106755930 B CN 106755930B CN 201710015459 A CN201710015459 A CN 201710015459A CN 106755930 B CN106755930 B CN 106755930B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 315
- 238000000137 annealing Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title abstract description 7
- 238000002791 soaking Methods 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 239000013078 crystal Substances 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C21D1/34—Methods of heating
- C21D1/52—Methods of heating with flames
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a front-to-back continuous heating method for an annealing furnace, and relates to a heating method suitable for the annealing furnace. The method changes the heating mode of the annealing furnace into a front heating mode, realizes short furnace length, increases the length of a soaking section to increase soaking time, ensures that crystal grains of strip steel in the furnace are fully grown, and optimizes the mechanical property of the strip steel. The front-to-back continuous heating method for the annealing furnace comprises the following steps: the arrangement sequence of the radiant tubes in the annealing furnace from front to back is A1、A2、A3……An… …, the total heating output of the annealing furnace is x, the heating output of the radiant tube is y, and the radiant tube AnHeating output y ofnTotal heating output x from annealing furnaceHas a functional relationship ofk is 0.5(n ' +1), n ' is the number of the radiant tubes, and the value ranges of x, y, n and n ' are as follows: x is more than or equal to 0 and less than or equal to 100 percent, y is more than or equal to 0 and less than or equal to 100 percent, n is more than or equal to 1, and n' is more than 1.
Description
Technical field
The present invention relates to a kind of heating means, more particularly to a kind of heating means suitable for annealing furnace.
Background technique
Traditional annealing furnace with heating mode be by annealing furnace plate temperature control PID output after, according to total heating export to
The formulation output valve of Ding Gelie, only there are three types of heating modes, are respectively as follows: Narrow, proportional and Normal.Above-mentioned three
Kind heating mode can be suitable for most of steel grade, but reality is had no idea for the steel grade for needing longer soaking time
It is existing.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of annealing furnace continous way heating means from front to back, this method
Annealing furnace heating mode is changed to leading portion heating mode, realizes that short furnace superintendent is used, increases soaking segment length to increase soaking time, make
Strip crystal grain in furnace is sufficiently grown up, and strip mechanical performance is optimized.
Annealing furnace of the present invention continous way heating means from front to back, comprising the following steps:
Radiant tube putting in order as A from front to back in the annealing furnace1、A2、A3……An..., the annealing furnace is total
Heating output be x, the radiant tube heating output be y,
The radiant tube AnHeating export ynTotal functional relation between output x that heats is with annealing furnaceThe k=0.5 (n'+1), the n' are the quantity of radiant tube, the value range of described x, y, n, n' are as follows: 0
≤ x≤100%, 0≤y≤100%, n >=1, n'> 1；As the y being calculated according to the functional relationnGreater than 100%
When, ynValue is 100%；As the y being calculated according to the functional relationnWhen less than 0, ynValue is 0.
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=2, the radiant tube A1's
Heating output is y1=0.5 (2+1) x=1.5x, the radiant tube A2Heating output be
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=3, the radiant tube A1's
Heating output is y1=0.5 (3+1) x=2x, the radiant tube A2Heating output be
The radiant tube A3Heating output be
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=4, the radiant tube A1's
Heating output is y1=0.5 (4+1) x=2.5x, the radiant tube A2Heating output be
The radiant tube A3Heating output beThe radiant tube A4Heating output be
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=5, the radiant tube A1's
Heating output is y1=0.5 (5+1) x=3x, the radiant tube A2Heating output be
The radiant tube A3Heating output beThe radiant tube A4Heating output beThe radiant tube A5Heating output be
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=6, the radiant tube A1Heating
Output is y1=0.5 (6+1) x=3.5x, the radiant tube A2Heating output beInstitute
State radiant tube A3Heating output beThe radiant tube A4Heating output beThe radiant tube A5Heating output be
The radiant tube A6Heating output be
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=7, the radiant tube A1's
Heating output is y1=0.5 (7+1) x=4x, the radiant tube A2Heating output be
The radiant tube A3Heating output beThe radiant tube A4Heating output beThe radiant tube A5Heating output be
The radiant tube A6Heating output beThe radiant tube A7Heating output
For
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=8, the radiant tube A1Heating
Output is y1=0.5 (8+1) x=4.5x, the radiant tube A2Heating output be
The radiant tube A3Heating output beThe radiant tube A4Heating output beThe radiant tube A5Heating output be
The radiant tube A6Heating output beThe radiant tube A7Heating output beThe radiant tube A8Heating output be
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=9, the radiant tube A1Plus
Thermal output is y1=0.5 (9+1) x=5x, the radiant tube A2Heating output be
The radiant tube A3Heating output beThe radiant tube A4Heating output beThe radiant tube A5Heating output be
The radiant tube A6Heating output beThe radiant tube A7Heating output beThe radiant tube A8Heating output be
The radiant tube A9Heating output be
Annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=10, the radiant tube A1Plus
Thermal output is y1=0.5 (10+1) x=5.5x, the radiant tube A2Heating output be
The radiant tube A3Heating output beThe radiant tube A4Heating output beThe radiant tube A5Heating output beInstitute
State radiant tube A6Heating output beThe radiant tube A7Heating output beThe radiant tube A8Heating output be
The radiant tube A9Heating output beThe radiant tube A10Heating output
For
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
The present invention will be further explained below with reference to the attached drawings.
Detailed description of the invention
Fig. 1 is the heating output distribution schematic diagram of annealing furnace of the present invention continous way heating means from front to back；
Fig. 2 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment one from front to back
Figure；
Fig. 3 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment two from front to back
Figure；
Fig. 4 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment three from front to back
Figure；
Fig. 5 is the heating output distribution signal of annealing furnace of the present invention continous way heating means example IV from front to back
Figure；
Fig. 6 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment five from front to back
Figure；
Fig. 7 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment six from front to back
Figure；
Fig. 8 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment seven from front to back
Figure；
Fig. 9 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment eight from front to back
Figure；
Figure 10 is the heating output distribution signal of annealing furnace of the present invention continous way heating means embodiment nine from front to back
Figure.
Specific embodiment
As shown in Figure 1, annealing furnace of the present invention continous way heating means from front to back the following steps are included:
Radiant tube putting in order as A from front to back in the annealing furnace1、A2、A3……An..., the annealing furnace is total
Heating output be x, the radiant tube heating output be y.
The radiant tube AnHeating export ynTotal functional relation between output x that heats is with annealing furnaceThe k=0.5 (n'+1), the n' are the quantity of radiant tube, the value range of described x, y, n, n' are as follows: 0
≤ x≤100%, 0≤y≤100%, n >=1, n'> 1；As the y being calculated according to the functional relationnGreater than 100%
When, ynValue is 100%；As the y being calculated according to the functional relationnWhen less than 0, ynValue is 0.
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
With specific embodiment, the invention will be further described below:
Embodiment one
As shown in Fig. 2, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=2, also
When being only there are two radiant tube, the radiant tube A1Heating output be y1=0.5 (2+1) x=1.5x, the radiant tube A2's
Heating exports
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, when annealing furnace it is total plus
When thermal output is 100%, the heating output of all radiant tubes is 100%.The present invention will be before the heating function whole of annealing furnace
It moving, strip is quickly heated to the temperature of demand by the ability for being concentrated use in leading portion burner, the burner of back segment no longer combustion heat supplying, this
Sample can be such that soaking segment length of the strip in furnace increases, and so that band crystalline grain of steel is grown up, to optimize the machinery of strip
Performance.
Embodiment two
As shown in figure 3, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=3, it is described
Radiant tube A1Heating output be y1=0.5 (3+1) x=2x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；When the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.The present invention is by annealing furnace
Heating function all move forward, strip is quickly heated to the temperature of demand, the burning of back segment by the ability for being concentrated use in leading portion burner
Mouth no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, and band crystalline grain of steel is more effectively made to grow up, from
And optimize the mechanical performance of strip.
Embodiment three
As shown in figure 4, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=4, it is described
Radiant tube A1Heating output be y1=0.5 (4+1) x=2.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output be
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
Example IV
As shown in figure 5, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=5, it is described
Radiant tube A1Heating output be y1=0.5 (5+1) x=3x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output
For
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
Embodiment five
As shown in fig. 6, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=6, it is described
Radiant tube A1Heating output be y1=0.5 (6+1) x=3.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
Embodiment six
As shown in fig. 7, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=7, it is described
Radiant tube A1Heating output be y1=0.5 (7+1) x=4x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output be
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
Embodiment seven
As shown in figure 8, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=8, it is described
Radiant tube A1Heating output be y1=0.5 (8+1) x=4.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output beThe radiant tube A8Heating output
For
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
Embodiment eight
As shown in figure 9, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=9, it is described
Radiant tube A1Heating output be y1=0.5 (9+1) x=5x, the radiant tube A2Heating output beThe radiant tube A3Heating output beInstitute
State radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output beThe radiant tube A8Heating output beThe radiant tube A9Heating output be
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
Embodiment nine
As shown in Figure 10, annealing furnace of the present invention continous way heating means from front to back, wherein as the n'=10, institute
State radiant tube A1Heating output be y1=0.5 (10+1) x=5.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output beThe radiant tube A8Heating output beThe radiant tube A9Heating output be
The radiant tube A10Heating output be
Annealing furnace of the present invention continous way heating means from front to back, as radiant tube A1Heating output for 50% when, spoke
Penetrate pipe A2Start to burn；Work as A1Heating output for 100% when, radiant tube A2Heating output be 50%, radiant tube A3Start to fire
It burns；Later and so on, when the total heating output of annealing furnace is 100%, the heating output of all radiant tubes is 100%.
The present invention all moves forward the heating function of annealing furnace, and strip is quickly heated to demand by the ability for being concentrated use in leading portion burner
Temperature, the burner of back segment no longer combustion heat supplying can be such that soaking segment length of the strip in furnace increases in this way, more effectively make band
Crystalline grain of steel is grown up, to optimize the mechanical performance of strip.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (10)
1. a kind of annealing furnace continous way heating means from front to back, radiant tube putting in order from front to back in the annealing furnace
For A1、A2、A3……An..., the total heating output of the annealing furnace is x, and the heating output of the radiant tube is y, feature
It is, comprising the following steps:
The radiant tube AnHeating export ynTotal functional relation between output x that heats is with annealing furnaceThe k=0.5 (n'+1), the n' are the quantity of radiant tube, the value range of described x, y, n, n' are as follows: 0
≤ x≤100%, 0≤y≤100%, n >=1, n'> 1；As the y being calculated according to the functional relationnGreater than 100%
When, ynValue is 100%；As the y being calculated according to the functional relationnWhen less than 0, ynValue is 0.
2. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 2, the radiant tube A1Heating output be y1=0.5 (2+1) x=1.5x, the radiant tube A2Heating output be
3. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 3, the radiant tube A1Heating output be y1=0.5 (3+1) x=2x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
4. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 4, the radiant tube A1Heating output be y1=0.5 (4+1) x=2.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output be
5. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 5, the radiant tube A1Heating output be y1=0.5 (5+1) x=3x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output be
6. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 6, the radiant tube A1Heating output be y1=0.5 (6+1) x=3.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
7. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 7, the radiant tube A1Heating output be y1=0.5 (7+1) x=4x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output be
8. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 8, the radiant tube A1Heating output be y1=0.5 (8+1) x=4.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output beThe radiant tube A8Heating output
For
9. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'=
When 9, the radiant tube A1Heating output be y1=0.5 (9+1) x=5x, the radiant tube A2Heating output beThe radiant tube A3Heating output be
The radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output beThe radiant tube A8Heating output beThe radiant tube A9Heating output be
10. annealing furnace according to claim 1 continous way heating means from front to back, it is characterised in that: as the n'
When=10, the radiant tube A1Heating output be y1=0.5 (10+1) x=5.5x, the radiant tube A2Heating output beThe radiant tube A3Heating output beInstitute
State radiant tube A4Heating output beThe radiant tube A5Heating output beThe radiant tube A6Heating output be
The radiant tube A7Heating output beThe radiant tube A8Heating output beThe radiant tube A9Heating output be
The radiant tube A10Heating output be
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57110624A (en) * | 1980-12-27 | 1982-07-09 | Nippon Steel Corp | Method for controlling combustion of continuous annealing furnace |
| EP0213810A1 (en) * | 1985-08-08 | 1987-03-11 | Kawasaki Steel Corporation | Continuous annealing and pickling method and apparatus for steel strips |
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