CN110157872A - Heating method for reducing burning loss rate of plate blank of heat accumulating type heating furnace - Google Patents
Heating method for reducing burning loss rate of plate blank of heat accumulating type heating furnace Download PDFInfo
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- CN110157872A CN110157872A CN201910317356.0A CN201910317356A CN110157872A CN 110157872 A CN110157872 A CN 110157872A CN 201910317356 A CN201910317356 A CN 201910317356A CN 110157872 A CN110157872 A CN 110157872A
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- heating
- reducing
- burn out
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000011068 loading method Methods 0.000 claims abstract description 22
- 238000002791 soaking Methods 0.000 claims description 14
- 238000010079 rubber tapping Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 claims description 3
- 238000005338 heat storage Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
-
- 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
-
- 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
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a heating method for reducing the burning loss rate of a slab of a regenerative heating furnace, which is characterized by comprising the following steps of setting different steel charging intervals according to different widths of the slab, and charging the slab into the heating furnace according to the different steel charging intervals, wherein the relationship between the width of the slab and the steel charging intervals is as follows: if W is less than or equal to 1150, L is 400; if W is more than 1150 and less than or equal to 1250, L is 300; if W is more than 1250 and less than or equal to 1350, L is 200; if W is more than 1350, L is 100; wherein, W is the width of the plate blank and the unit is mm, and L is the steel loading space and the unit is mm. The invention solves the problem of high burning loss rate when the existing heating process is used for heating the plate blank, and improves the yield of products.
Description
Technical field
The present invention relates to a kind of heating means for reducing recuperative heater slab burn out rate, belong to hot rolling line slab
Technical field of heating.
Background technique
In high-temperature heating process, coating metal is easy that oxidation occurs instead with the oxidizing gas in heating furnace slab
It answers, so as to cause slab oxidization burning loss.Slab oxidization burning loss will cause a large amount of metal loss, be to influence hot-strip lumber recovery
Principal element accounts for about the 50~60% of metal loss total amount；It is too fast that slab iron scale scaling loss seriously also will cause furnace bottom rising,
Heating furnace blowing out scarfing cinder number increases, and influences yield and heating furnace service life；Serious oxidization burning loss, which also will cause, simultaneously rolls
The problems such as steel product quality declines afterwards, energy waste.Therefore reduce oxidization burning loss be improve yield, reduce production cost most directly,
Effectively means.
The principal element for influencing oxidization burning loss has heating in-furnace temperature, heating time and furnace atmosphere etc..It is domestic public
A variety of methods for reducing oxidization burning loss are opened, some uses light diesel fuel or heavy oil for combustion medium, controls the atmosphere in heating furnace
To reduce oxidization burning loss；Some forms protective coating using in billet surface spraying high temperature antioxidizing paint at high temperature, reduces
Oxidization burning loss；Some is using hot steel bloom hot sending method etc..
Although these methods reduce slab burn out rate to a certain extent, but still there is the space of progress.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of heating side for reducing recuperative heater slab burn out rate
Method, when being used to heat slab to solve existing heating process, the higher problem of burn out rate.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of heating means reducing recuperative heater slab burn out rate, which is characterized in that the described method includes:
According to width of plate slab difference, different steel loading spacing is set, slab is encased according to different steel loading spacing and is added
In hot stove, the relationship of the width of plate slab and the steel loading spacing are as follows:
If W≤1150, L=400；
If 1150 < W≤1250, L=300；
If 1250 < W≤1350, L=200；
If W > 1350, L=100；
Wherein, W is width of plate slab, and unit mm, L are steel loading spacing, unit mm.
Further, the heating of plate blank technique includes slab preheating section, the first bringing-up section, the second bringing-up section, soaking zone.
Further, the slab preheating section controls 750 DEG C~1200 DEG C of fire box temperature, and slab is in preheating section Mo Wenduda
To 500~900 DEG C.
Further, the first bringing-up section fire box temperature control is 950 DEG C~1250 DEG C, and slab is at the first bringing-up section end
Temperature reaches 800~1100 DEG C.
Further, the second bringing-up section fire box temperature control is 1100 DEG C~1280 DEG C, and slab is in the second bringing-up section
Last temperature reaches 1050~1200 DEG C；
Further, the soaking zone controls 1100 DEG C~1260 DEG C of fire box temperature, and slab reaches in soaking zone end temperature
1120~1240 DEG C；
Further, at 1140 DEG C~1240 DEG C, total heating time is 150~210 points for the slab tapping temperature control
Clock,
Further, the heating furnace heating roller interval >=1.5m；
Further, the air in the heating furnace reaches 800 DEG C or more by heat storage tank preheating temperature, and coal gas is by changing
Hot device preheating temperature reaches 240 DEG C or more.
Further, continuously in tapping production process, burner hearth tail flue gas remaining oxygen is 4% hereinafter, roll change, stopping rolling guarantor
Wen Shi, burner hearth tail flue gas remaining oxygen are 6% or less.
Beneficial effects of the present invention include at least:
In a kind of heating means reducing recuperative heater slab burn out rate provided by the invention, due to wide according to slab
Degree is different, and different steel loading spacing is arranged, so as to so that slab is encased in heating furnace according to different steel loading spacing, due to
Heating furnace furnace superintendent be it is certain, under constant tapping interval, can control the time inside furnace of slab in heating furnace will not be too long,
To achieve the purpose that reduce slab burn out rate, improve product lumber recovery.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of process flow of the heating means of reduction recuperative heater slab burn out rate of the embodiment of the present invention
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is that different steel loading spacing is arranged according to slab different in width, is being heated with controlling slab
Time inside furnace in furnace will not be too long, to achieve the purpose that reduce slab burn out rate, improve product lumber recovery.
Based on above-mentioned core, the embodiment of the invention provides a kind of method for reducing recuperative heater slab burn out rate,
Fig. 1 is a kind of process flow chart of the heating means of reduction recuperative heater slab burn out rate of the embodiment of the present invention, in conjunction with
Fig. 1 heating means specifically include:
Different steel loading spacing is arranged according to different width of plate slab by S1, and slab is packed into according to different steel loading spacing
Into heating furnace, the relationship of width of plate slab and steel loading spacing is shown in Table 1:
| Width of plate slab/mm | Steel loading spacing/mm |
| W≤1150 | L=400 |
| 1150 W≤1250 < | L=300 |
| 1250 W≤1350 < | L=200 |
| W > 1350 | L=100 |
Table 1
This is because: heating furnace furnace superintendent is certain, and if slab steel loading spacing is identical, steel loading number if width of plate slab is smaller
It measures more.Under constant tapping interval, the time inside furnace of slab is long in heating furnace, in this case, can aggravate slab scaling loss.
Therefore, width of plate slab is bigger, and steel loading spacing is smaller；Conversely, width of plate slab is smaller, steel loading spacing is bigger, to reach in heating furnace
Slab time inside furnace will not be too long purpose, reduce slab burn out rate.
S2, slab are tapped preheated section in heating furnace, after the first bringing-up section, the second bringing-up section, soaking zone.
According to heating furnace to the control principle of furnace temperature, the heating process of heating furnace is divided into four-stage, is preheating respectively
Section, a bringing-up section, two bringing-up sections, soaking zone are 2100Kcal/Nm using calorific value after slab enters heating furnace3~
2300Kcal/Nm3Mixed gas is heated, and the final tapping temperature control of slab is at 1140 DEG C~1240 DEG C；Total heating time
It is 150 minutes~210 minutes.
The embodiment of the present invention is specifically, 750 DEG C~1200 DEG C of preheating section fire box temperature of control, and slab is in preheating section end temperature
Reach 500~900 DEG C；
Controlling 950 DEG C~1250 DEG C of the first bringing-up section fire box temperature, slab reaches 800 in the first bringing-up section end temperature~
1100℃；
Controlling 1100 DEG C~1280 DEG C of the second bringing-up section fire box temperature, slab reaches 1050 in the second bringing-up section end temperature~
1200℃；
1100 DEG C~1260 DEG C of soaking zone fire box temperature of control, slab reaches 1120~1240 DEG C in soaking zone end temperature；
In the heating process of heating furnace, empty 1.5 meters of step during roller；First bringing-up section and the second bringing-up section air pass through storage
Hot tank preheating temperature reaches 800 DEG C or more；Coal gas reaches 240 DEG C or more by heat exchanger preheating temperature.
In continuous tapping production process, burner hearth tail flue gas remaining oxygen is 4% hereinafter, roll change, when stopping rolling heat preservation, burner hearth tail
Portion's flue gas remaining oxygen is 6% or less.
Embodiment 1:
According to of different size, adjacent slab spacing is set by table 1, heating technique parameter is shown in Table 2.This batch slab total 58
Block, heating time 158~172 minutes；
Slab enters stove heating, and 800 DEG C~950 DEG C of preheating section furnace temperature, 602 DEG C -695 of temperature when slab reaches preheating section end
℃；
First 1080 DEG C of bringing-up section furnace temperature~1140 DEG C, 904 DEG C~920 DEG C of temperature when slab reaches the first bringing-up section end；
Second 1205~1255 DEG C of furnace temperature of heating, 1145 DEG C~1193 DEG C of temperature when slab reaches the second bringing-up section section end；
1160 DEG C~1220 DEG C of soaking zone furnace temperature, slab reaches 1150~1180 DEG C of soaking zone end temperature,
There is the vacancy 1.5m before and after the roller phase；First bringing-up section and the second bringing-up section air regenerator temperature are 800 DEG C or more, coal
260~285 DEG C of gas preheating temperature, heating of plate blank quality is good, has no surface defect.
Table 2
Embodiment 2:
According to of different size, adjacent slab spacing is set by table 1, heating technique parameter is shown in Table 3.This batch slab total 72
Block heats 175 minutes~201 minutes；
Slab enters stove heating, and 920 DEG C~1035 DEG C of preheating section furnace temperature, slab reaches 778 DEG C -845 DEG C of preheating section end temperature；
First 1195 DEG C of bringing-up section furnace temperature~1220 DEG C, slab reach 1005 DEG C~1048 DEG C of the first bringing-up section end temperature；
Second 1245~1275 DEG C of bringing-up section furnace temperature, slab reach 1165 DEG C~1205 DEG C of the second bringing-up section end temperature；
1220 DEG C~1260 DEG C of soaking zone furnace temperature, slab reaches 1210~1230 DEG C of soaking zone end temperature；
There is the vacancy 1.5m before and after the roller phase；One bringing-up section and two 800 DEG C of bringing-up section air regenerator temperatures or more, gas preheating
270~288 DEG C of temperature, heating of plate blank quality is good, has no surface defect.
Table 3
Technical solution in above-mentioned the embodiment of the present application at least brings following technical effect or advantage:
The present invention adjusts steel loading spacing in heating furnace according to different in width slab, while to heating furnace burner hearth each section temperature
The adjustment of degree and the optimization of first class control system can reduce slab table under the premise of not influencing heating of plate blank quality
Layer iron scale thickness solves the problems, such as that existing heating process heating slab burn out rate is higher, has reached advanced international level,
Production cost is saved, the comprehensive quality of mill product is improved.In continuous tapping process, burner hearth tail flue gas is controlled 4%
Hereinafter, having effectively adapted to since slab specification, steel grade are various, the status that heating temperature changes in caused heating furnace, tool
There is extensive practicability, it can be achieved that factory produces in batches；Roll change, when stopping rolling heat preservation control burner hearth tail flue gas remaining oxygen 6% hereinafter,
Except in the case of needing to reduce furnace temperature when being suitable for roll change, it is thus also avoided that the residual too low insufficient carbon powder of burning of oxygen blocks heat storage
The problem of, it ensure that heating furnace is just producing use.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (10)
1. a kind of heating means for reducing recuperative heater slab burn out rate, which is characterized in that the heating means include:
According to width of plate slab difference, different steel loading spacing is set, slab is encased in heating furnace according to different steel loading spacing
In, the relationship of the width of plate slab and the steel loading spacing are as follows:
If W≤1150, L=400；
If 1150 < W≤1250, L=300；
If 1250 < W≤1350, L=200；
If W > 1350, L=100；
Wherein, W is width of plate slab, and unit mm, L are steel loading spacing, unit mm.
2. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 1, which is characterized in that
It is described slab is encased in heating furnace according to different steel loading spacing after, further includes: the slab is preheated in heating furnace
It taps after section, the first bringing-up section, the second bringing-up section, soaking zone.
3. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 2, which is characterized in that
The preheating section of the slab controls 750 DEG C~1200 DEG C of fire box temperature, and the slab reaches 500~900 in preheating section end temperature
℃。
4. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 2, which is characterized in that
The first bringing-up section fire box temperature control of the slab is 950 DEG C~1250 DEG C, and the slab is in the first bringing-up section Mo Wenduda
To 800~1100 DEG C.
5. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 2, which is characterized in that
The second bringing-up section fire box temperature control of the slab is 1100 DEG C~1280 DEG C, and the slab is in the second bringing-up section Mo Wenduda
To 1050~1200 DEG C.
6. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 2, which is characterized in that
The soaking zone control fire box temperature of the slab is 1100 DEG C~1260 DEG C, the slab reaches 1120 in soaking zone end temperature~
1240℃。
7. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 2, which is characterized in that
Slab tapping temperature control is 1140 DEG C~1240 DEG C, the slab total heating time of heating furnace be 150min~
210min。
8. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 1, which is characterized in that
Interval >=1.5m during every two roller of heating furnace.
9. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 2, which is characterized in that
When the slab heats in heating furnace, the air in heating furnace reaches 800 DEG C or more by heat storage tank preheating temperature, and coal gas is logical
It crosses heat exchanger preheating temperature and reaches 240 DEG C or more.
10. a kind of heating means for reducing recuperative heater slab burn out rate according to claim 2, feature exist
In, in the slab tapping process, burner hearth tail flue gas remaining oxygen is 4% hereinafter, roll change, when stopping rolling heat preservation, burner hearth tail portion cigarette
Gas remaining oxygen is 6% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317356.0A CN110157872B (en) | 2019-04-19 | 2019-04-19 | Heating method for reducing burning loss rate of plate blank of heat accumulating type heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317356.0A CN110157872B (en) | 2019-04-19 | 2019-04-19 | Heating method for reducing burning loss rate of plate blank of heat accumulating type heating furnace |
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|---|---|
| CN110157872A true CN110157872A (en) | 2019-08-23 |
| CN110157872B CN110157872B (en) | 2021-02-26 |
Family
ID=67639770
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983024A (en) * | 2019-11-29 | 2020-04-10 | 邯郸钢铁集团有限责任公司 | Method for accurately controlling time of plate blank in furnace by stepping heating furnace |
| CN112296102A (en) * | 2020-09-30 | 2021-02-02 | 首钢集团有限公司 | Control method and control device for low-temperature heating of non-oriented silicon steel plate blank |
| CN115029539A (en) * | 2022-05-11 | 2022-09-09 | 首钢京唐钢铁联合有限责任公司 | Method for heating thin slab by thick slab heating furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555927A (en) * | 2013-08-15 | 2014-02-05 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High temperature air and coal gas double heat storage type heating furnace heating method |
| CN104152668A (en) * | 2014-07-28 | 2014-11-19 | 首钢总公司 | Device and method for reducing steel billet oxidation burning loss of steel rolling heating furnace |
| CN106521120A (en) * | 2016-10-26 | 2017-03-22 | 南京钢铁股份有限公司 | Bearing steel heating decarbonization control method |
| CN106694567A (en) * | 2016-11-22 | 2017-05-24 | 首钢京唐钢铁联合有限责任公司 | Heating method for IF steel in ferrite rolling |
| CN107475492A (en) * | 2017-07-20 | 2017-12-15 | 首钢集团有限公司 | A kind of heating means for controlling automatic steel surface high-temp vulcanization defect |
-
2019
- 2019-04-19 CN CN201910317356.0A patent/CN110157872B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555927A (en) * | 2013-08-15 | 2014-02-05 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High temperature air and coal gas double heat storage type heating furnace heating method |
| CN104152668A (en) * | 2014-07-28 | 2014-11-19 | 首钢总公司 | Device and method for reducing steel billet oxidation burning loss of steel rolling heating furnace |
| CN106521120A (en) * | 2016-10-26 | 2017-03-22 | 南京钢铁股份有限公司 | Bearing steel heating decarbonization control method |
| CN106694567A (en) * | 2016-11-22 | 2017-05-24 | 首钢京唐钢铁联合有限责任公司 | Heating method for IF steel in ferrite rolling |
| CN107475492A (en) * | 2017-07-20 | 2017-12-15 | 首钢集团有限公司 | A kind of heating means for controlling automatic steel surface high-temp vulcanization defect |
Non-Patent Citations (2)
| Title |
|---|
| 张海刚等: ""一种布料方式在加热炉上的应用"", 《工业炉》 * |
| 杨伟新等: "步进式加热炉现状与分析", 《节能技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983024A (en) * | 2019-11-29 | 2020-04-10 | 邯郸钢铁集团有限责任公司 | Method for accurately controlling time of plate blank in furnace by stepping heating furnace |
| CN112296102A (en) * | 2020-09-30 | 2021-02-02 | 首钢集团有限公司 | Control method and control device for low-temperature heating of non-oriented silicon steel plate blank |
| CN115029539A (en) * | 2022-05-11 | 2022-09-09 | 首钢京唐钢铁联合有限责任公司 | Method for heating thin slab by thick slab heating furnace |
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| Publication number | Publication date |
|---|---|
| CN110157872B (en) | 2021-02-26 |
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