CN105642672A - Control method of iron scale of steel containing phosphorus and boron - Google Patents
Control method of iron scale of steel containing phosphorus and boron Download PDFInfo
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- CN105642672A CN105642672A CN201610133547.8A CN201610133547A CN105642672A CN 105642672 A CN105642672 A CN 105642672A CN 201610133547 A CN201610133547 A CN 201610133547A CN 105642672 A CN105642672 A CN 105642672A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 82
- 239000010959 steel Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 25
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 10
- 239000011574 phosphorus Substances 0.000 title claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 52
- 229910000712 Boron steel Inorganic materials 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 16
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 45
- 239000013505 freshwater Substances 0.000 claims description 16
- 230000009467 reduction Effects 0.000 claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 claims description 4
- 238000005097 cold rolling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005098 hot rolling Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 6
- 238000002791 soaking Methods 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 206010053615 Thermal burn Diseases 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a method for controlling iron scale containing phosphorus and boron steel, which comprises the following steps: rolling 15-20 non-phosphorus and boron steel pieces, and rolling less than or equal to 40 phosphorus and boron steel pieces; in the process of rolling the phosphorus and boron-containing steel, the temperature and the time of the first heating section, the second heating section and the soaking section in the heating furnace are controlled by the control method of the phosphorus and boron-containing steel provided by the embodiment of the invention, so that the element enrichment concentration of an oxide scale and a matrix interface is controlled, and meanwhile, key links of rolling planning, roll preparation, a hot roll strategy, a rough rolling descaling pass, a rough rolling outlet temperature, a finish rolling inlet temperature, a finish descaling pressure and a finish rolling load in a hot rolling process are controlled, so that the oxide scale is avoided, the oxide scale defect of the hot-rolled strip steel containing the phosphorus and boron elements is effectively controlled, and the technical effect of effectively improving the surface quality of the strip steel is realized.
Description
Technical field
The present invention relates to smelting iron and steel technical field, particularly relate to the control method of the iron scale of a kind of phosphorous, boron steel.
Background technology
P elements is solution strengthening ferrite element, can significantly improve the tensile strength of steel, also can improve the corrosion resistance of steel; Boron element, as the addition element that steel grade is common, can improve the quenching degree of steel, can postpone ��-a simultaneously and change, make material after rolling, and timeliness is strengthened further. It can be seen that the addition of P elements and boron element, improve the quenching degree of steel, but too increase the adhesiveness of belt steel surface iron scale and matrix.
Therefore, for ensureing stable rolling, iron and steel enterprise has to the strategy taking high temperature rolling, and tapping temperature is all more than 1250 DEG C. But, high operation of rolling temperature, intermediate blank scale on surface can be made to change, and before finish rolling, this secondary oxidation iron sheet cannot be effectively removed in de-scaling, simultaneously, under the high temperature conditions, finish rolling region belt steel surface iron scale thickens, once there is the phenomenon that scale on surface inhomogeneous cooling is even or roller surface grade is bad, it will produce serious three time scale defect, can seriously reduce the surface quality of final products, then affect the stability of whole product line.
Therefore, prior art exists when rolling phosphorous, boron steel because adopting high temperature rolling can reduce the technical problem of surface quality of final products.
Summary of the invention
The embodiment of the present invention by providing the control method of the iron scale of a kind of phosphorous, boron steel, the technical problem of the surface quality when rolling phosphorous, boron steel because adopting high temperature rolling can reduce final products in order to solve to exist in prior art.
Embodiments provide the control method of the iron scale of a kind of phosphorous, boron steel, including:
First rolling non-phosphorous, the boron steel of 15-20 block, then roll, boron steel phosphorous less than or equal to 40 pieces;
In the process of described phosphorous, the boron steel of rolling, after steel billet enters heating furnace, the described steel billet total time inside furnace in heating furnace is controlled for 200-240min, and the section of the adding end temperature controlling described heating furnace is 1090 DEG C-1110 DEG C, controlling two section of adding end temperature is 1240 DEG C-1260 DEG C, and to control tapping temperature be 1240 DEG C-1280 DEG C;
Described steel billet after entering roughing mill after described heating furnace, when the passage of described roughing mill is even number, then in the frame that passage is odd number, described steel billet is carried out de-scaling operation, at described steel billet after last frame of described roughing mill, the surface temperature controlling described steel billet is 1060 DEG C-1080 DEG C, and the de-scaling water controlling last passage of described roughing mill is closed;
Described steel billet is before entering essence De-scaling box through described roughing mill, and the entrance essence descaling device and the outlet essence descaling device that control described essence De-scaling box are all opened;
Described steel billet is before entering finishing mill through described essence De-scaling box, the inlet temperature controlling described finishing mill is 1070 DEG C��1110 DEG C, and control in described finishing mill the temperature difference between any two blocks of steel billets within 10 DEG C, and control the surface roughness of working roll of front 4 frames of described finishing mill for less than or equal to Ra0.5 ��m, and reduce the reduction ratio 2��6% of front 4 frames of described finishing mill, and control the reduction ratio of rear 3 frames of described finishing mill more than 15%.
Alternatively, at described steel billet when described steel billet carries out de-scaling operation in the frame that passage is odd number, described method also includes:
Control the de-scaling hydraulic pressure of described roughing mill be more than or equal to 18Mpa.
Alternatively, at described steel billet after last frame of described roughing mill, described control method also includes:
The delay table of described roughing mill arranges thermal insulation cover.
Alternatively, all fresh water (FW)s of last frame of the described roughing mill of described control are closed, and specifically include:
Control the cooling water of last frame of described roughing mill, side spray is closed.
Alternatively, the hydraulic pressure of described entrance essence descaling device and outlet essence descaling device is be more than or equal to 19Mpa.
Alternatively, described after described steel billet enters described finishing mill, described method also includes:
When described finishing mill is seven frames, opens the anti-peeling water of front four frames in described seven frames and the roll gap lubrication of described seven frames, close the interstand cooling water in described finishing mill.
Alternatively, the surface temperature of the described steel billet of described control is 1060 DEG C-1080 DEG C, specifically includes:
It it is 1060 DEG C-1080 DEG C by the surface temperature of steel billet described in mill speed and de-scaling road secondary control.
Alternatively, in the described finishing mill of described control, the temperature difference between any two blocks of steel billets is within 10 DEG C, specifically includes:
By control tapping temperature stable, operation of rolling speed is consistent with fresh water (FW), controls in described finishing mill the temperature difference between any two blocks of steel billets within 10 DEG C.
Alternatively, described phosphorous, boron steel is the thickness Thin Specs steel grade less than or equal to 3.0mm.
Alternatively, described phosphorous, boron steel includes:
Boron content is the hot-strip of 0.005-0.03 ��; Or
The phosphorus element content cold rolling or hot-strip more than 0.05%.
One or more technical scheme in the embodiment of the present invention, at least has the advantage that or beneficial effect:
By the embodiment of the present invention provide phosphorous, the control method of boron steel, control the first bringing-up section in heating furnace, the temperature and time of the second bringing-up section and soaking zone, thus controlling the enrichment of element concentration of iron scale and basal body interface, simultaneously, by controlling the rolling scaduled layout in hot rolling flow process in the hot rolling, standby roller, scald roller strategy, roughing de-scaling passage, roughing outlet temperature, entry temperature at finishing, these key links of load are rolled in essence de-scaling pressure and finish rolling, avoid the appearance of iron scale, effectively control phosphorous, the scale defect of the hot-strip of boron element, thus solve in prior art exist rolling phosphorous, the technical problem of the surface quality of final products can be reduced because of employing high temperature rolling during boron steel, achieve the technique effect of the surface quality being effectively improved strip steel, it is higher phosphorous of rolling line steady production surface quality simultaneously, boron steel provides safeguard.
Detailed description of the invention
The embodiment of the present invention by providing the control method of the iron scale of a kind of phosphorous, boron steel, the technical problem of the surface quality when rolling phosphorous, boron steel because adopting high temperature rolling can reduce final products in order to exist in prior art.
Embodiments provide the control method of the iron scale of a kind of phosphorous, boron steel, including:
First, by rolling scaduled frequency conversion, first roll non-phosphorous, the boron steel of 15-20 block, then roll phosphorous, boron steel less than or equal to 40 pieces;
In the process of phosphorous, the boron steel of rolling, after steel billet enters heating furnace, the steel billet total time inside furnace in heating furnace is controlled for 200-240min, and the section of the adding end temperature controlling heating furnace is 1090 DEG C-1110 DEG C, controlling two section of adding end temperature is 1240 DEG C-1260 DEG C, and to control tapping temperature be 1240 DEG C-1280 DEG C;
Steel billet after entering roughing mill after heating furnace, when the passage of roughing mill is even number, then in the frame that passage is odd number, steel billet is carried out de-scaling operation, at steel billet after last frame of roughing mill, the surface temperature controlling steel billet is 1060 DEG C-1080 DEG C, and the de-scaling water controlling last passage of roughing mill is closed;
Steel billet is before entering essence De-scaling box through roughing mill, and the entrance essence descaling device and the outlet essence descaling device that control essence De-scaling box are all opened;
Steel billet is before entering finishing mill through essence De-scaling box, the inlet temperature controlling finishing mill is 1070 DEG C��1110 DEG C, and in control finishing mill the temperature difference between any two blocks of steel billets within 10 DEG C, and control the surface roughness of working roll of front 4 frames of finishing mill for less than or equal to Ra0.5 ��m, and reduce the reduction ratio 2��6% of front 4 frames of finishing mill, and control the reduction ratio of rear 3 frames of finishing mill more than 15%.
In specific implementation process, at steel billet when steel billet carries out de-scaling operation in the frame that passage is odd number, method also includes:
Control the de-scaling hydraulic pressure of roughing mill be more than or equal to 18Mpa.
In specific implementation process, at steel billet after last frame of roughing mill, control method also includes:
The delay table of roughing mill arranges thermal insulation cover.
In specific implementation process, all fresh water (FW)s of last frame controlling roughing mill are closed, and specifically include: control the cooling water of last frame of roughing mill, side spray is closed.
In specific implementation process, the hydraulic pressure of entrance essence descaling device and outlet essence descaling device is be more than or equal to 19Mpa.
In specific implementation process, after steel billet enters finishing mill, method also includes:
When finishing mill is seven frames, open the anti-peeling water of front four frames in seven frames and the roll gap lubrication of seven frames, close the interstand cooling water in finishing mill.
In specific implementation process, the surface temperature controlling steel billet is 1060 DEG C-1080 DEG C, specifically includes:
It it is 1060 DEG C-1080 DEG C by the surface temperature of mill speed and de-scaling road secondary control steel billet.
In specific implementation process, in control finishing mill, the temperature difference between any two blocks of steel billets is within 10 DEG C, specifically includes:
By control tapping temperature stable, operation of rolling speed is consistent with fresh water (FW), controls in finishing mill the temperature difference between any two blocks of steel billets within 10 DEG C.
In specific implementation process, the control method that the embodiment of the present invention provides can effectively control the scale defect of the hot-strip of phosphorous, boron element, and owing to the temperature of Thin Specs steel grade is easier to control, so the method that the embodiment of the present invention provides is for the effect that phosphorous, boron steel are the thickness Thin Specs steel grade less than or equal to 3.0mm more preferably, wherein, phosphorous, boron steel includes: boron content is the hot-strip of 0.005-0.03 ��;Or the cold rolling or hot-strip that phosphorus element content is more than 0.05%.
Can be seen that, by the embodiment of the present invention provide phosphorous, the control method of boron steel, control the first bringing-up section in heating furnace, the temperature and time of the second bringing-up section and soaking zone, thus controlling the enrichment of element concentration of iron scale and basal body interface, simultaneously, by controlling the rolling scaduled layout in hot rolling flow process in the hot rolling, standby roller, scald roller strategy, roughing de-scaling passage, roughing outlet temperature, entry temperature at finishing, these key links of load are rolled in essence de-scaling pressure and finish rolling, avoid the appearance of iron scale, effectively control phosphorous, the scale defect of the hot-strip of boron element, thus solve in prior art exist rolling phosphorous, the technical problem of the surface quality of final products can be reduced because of employing high temperature rolling during boron steel, achieve the technique effect of the surface quality being effectively improved strip steel, it is higher phosphorous of rolling line steady production surface quality simultaneously, boron steel provides safeguard.
In ensuing part, technique scheme will be described in conjunction with specific embodiments.
First, when layout is rolling scaduled, first 15 blocks of non-phosphorous, boron steels of rolling, roll phosphorous, boron steel subsequently again, and same rolling scaduled endosymbiosis produces phosphorous, the boron steel of 30 pieces.
In the present embodiment, in the process of this phosphorous, boron steel of 30 pieces of rolling, controlling steel billet in heating furnace always in stove 231min average time, the section of adding an end temperature 1101 DEG C, two section of adding end temperature 1252 DEG C, tapping temperature is 1265 DEG C. It can be seen that by controlling the first bringing-up section in heating furnace, the temperature and time of the second bringing-up section and soaking zone, thus controlling the enrichment of element concentration of iron scale and basal body interface.
In the present embodiment, roughing mill has 6 passages, and so in the 1st passage, steel billet is carried out de-scaling operation by the 3rd passage and the 5th passage, in actual applications, ensures de-scaling hydraulic pressure to be obtained in that good scale removal effect at 18Mpa or more than 18Mpa.
Not carrying out de-scaling operation when steel billet is by 6 passage of roughing mill, delay table puts into thermal insulation cover, and before entering essence de-scaling, all fresh water (FW)s, including cooling water, side spray etc. is closed. So, the iron scale thickness of billet surface is suitably increased, it is simple to removed by this ferrum oxide by essence De-scaling box.
Of course, it is necessary to it is noted that at steel billet by after the 6th passage of roughing mill, it is possible to be 1060 DEG C-1080 DEG C by the surface temperature of mill speed and de-scaling road secondary control steel billet, ensure to increase the effect of iron scale thickness.
In the present embodiment, essence De-scaling box includes entrance essence descaling device and descaling device arranged by outlet essence descaling device two, entrance essence descaling device in essence De-scaling box and outlet essence descaling device are all opened, so, it is easy to essence De-scaling box and removes secondary oxidation iron sheet by the mode of Quench, in actual applications, pressure is obtained in that good scale removal effect higher than 19Mpa.
In the present embodiment, the inlet temperature of finishing mill is controlled at 1104 DEG C, can pass through to control simultaneously tapping temperature stable, operation of rolling speed is consistent with fresh water (FW), controls the temperature difference between any two blocks of steel billets within 10 DEG C. When finishing mill is seven frames, in front 4 frames of finishing mill, machine is new high-chromium iron-cast roller, the surface roughness of this high-chromium iron-cast roller is less than or equal to Ra0.5 ��m, before steel billet enters finishing mill, the roll gap lubrication of the anti-peeling water opening front 4 frame precision rolling working rolls of finishing mill and seven frames opening finishing mill puts into, do not put into interstand cooling water.
Finally, after steel billet enters finishing mill, the reduction ratio 2-6% of 4 frames before reduction finish rolling, control the reduction ratio of rear three frames of finishing mill be more than or equal to 15%.
Detected by surface quality detection instrument, the surface quality qualification rate phosphorous, boron steel that the control method of the iron scale of phosphorous, the boron steel provided by the present embodiment is obtained is 100%, it is effectively improved the technique effect of the surface quality of strip steel, provides safeguard for phosphorous, boron steel that rolling line steady production surface quality is higher simultaneously.
One or more technical scheme in the embodiment of the present invention, at least has the advantage that or beneficial effect:
By the embodiment of the present invention provide phosphorous, the control method of boron steel, control the first bringing-up section in heating furnace, the temperature and time of the second bringing-up section and soaking zone, thus controlling the enrichment of element concentration of iron scale and basal body interface, simultaneously, by controlling the rolling scaduled layout in hot rolling flow process in the hot rolling, standby roller, scald roller strategy, roughing de-scaling passage, roughing outlet temperature, entry temperature at finishing, these key links of load are rolled in essence de-scaling pressure and finish rolling, avoid the appearance of iron scale, effectively control phosphorous, the scale defect of the hot-strip of boron element, thus solve in prior art exist rolling phosphorous, the technical problem of the surface quality of final products can be reduced because of employing high temperature rolling during boron steel, achieve the technique effect of the surface quality being effectively improved strip steel, it is higher phosphorous of rolling line steady production surface quality simultaneously, boron steel provides safeguard.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art. So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. one kind phosphorous, the control method of the iron scale of boron steel, it is characterised in that including:
First rolling non-phosphorous, the boron steel of 15-20 block, then roll, boron steel phosphorous less than or equal to 40 pieces;
In the process of described phosphorous, the boron steel of rolling, after steel billet enters heating furnace, the described steel billet total time inside furnace in heating furnace is controlled for 200-240min, and the section of the adding end temperature controlling described heating furnace is 1090 DEG C-1110 DEG C, controlling two section of adding end temperature is 1240 DEG C-1260 DEG C, and to control tapping temperature be 1240 DEG C-1280 DEG C;
Described steel billet after entering roughing mill after described heating furnace, when the passage of described roughing mill is even number, then in the frame that passage is odd number, described steel billet is carried out de-scaling operation, at described steel billet after last frame of described roughing mill, the surface temperature controlling described steel billet is 1060 DEG C-1080 DEG C, and the de-scaling water controlling last passage of described roughing mill is closed;
Described steel billet is before entering essence De-scaling box through described roughing mill, and the entrance essence descaling device and the outlet essence descaling device that control described essence De-scaling box are all opened;
Described steel billet is before entering finishing mill through described essence De-scaling box, the inlet temperature controlling described finishing mill is 1070 DEG C��1110 DEG C, and control in described finishing mill the temperature difference between any two blocks of steel billets within 10 DEG C, and control the surface roughness of working roll of front 4 frames of described finishing mill for less than or equal to Ra0.5 ��m, and reduce the reduction ratio 2��6% of front 4 frames of described finishing mill, and control the reduction ratio of rear 3 frames of described finishing mill more than 15%.
2. control method as claimed in claim 1, it is characterised in that at described steel billet when described steel billet carries out de-scaling operation in the frame that passage is odd number, described method also includes:
Control the de-scaling hydraulic pressure of described roughing mill be more than or equal to 18Mpa.
3. control method as claimed in claim 1, it is characterised in that at described steel billet after last frame of described roughing mill, described control method also includes:
The delay table of described roughing mill arranges thermal insulation cover.
4. control method as claimed in claim 1, it is characterised in that all fresh water (FW)s of last frame of the described roughing mill of described control are closed, and specifically include:
Control the cooling water of last frame of described roughing mill, side spray is closed.
5. control method as claimed in claim 1, it is characterised in that the hydraulic pressure of described entrance essence descaling device and outlet essence descaling device is be more than or equal to 19Mpa.
6. control method as claimed in claim 1, it is characterised in that described after described steel billet enters described finishing mill, described method also includes:
When described finishing mill is seven frames, opens the anti-peeling water of front four frames in described seven frames and the roll gap lubrication of described seven frames, close the interstand cooling water in described finishing mill.
7. control method as claimed in claim 1, it is characterised in that the surface temperature of the described steel billet of described control is 1060 DEG C-1080 DEG C, specifically includes:
It it is 1060 DEG C-1080 DEG C by the surface temperature of steel billet described in mill speed and de-scaling road secondary control.
8. control method as claimed in claim 1, it is characterised in that in the described finishing mill of described control, the temperature difference between any two blocks of steel billets is within 10 DEG C, specifically includes:
By control tapping temperature stable, operation of rolling speed is consistent with fresh water (FW), controls in described finishing mill the temperature difference between any two blocks of steel billets within 10 DEG C.
9. control method as claimed in claim 1, it is characterised in that described phosphorous, boron steel is the thickness Thin Specs steel grade less than or equal to 3.0mm.
10. control method as claimed in claim 7, it is characterised in that described phosphorous, boron steel includes:
Boron content is the hot-strip of 0.005-0.03 ��; Or
The phosphorus element content cold rolling or hot-strip more than 0.05%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133547.8A CN105642672A (en) | 2016-03-09 | 2016-03-09 | Control method of iron scale of steel containing phosphorus and boron |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610133547.8A CN105642672A (en) | 2016-03-09 | 2016-03-09 | Control method of iron scale of steel containing phosphorus and boron |
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| CN101012528A (en) * | 2007-01-25 | 2007-08-08 | 鞍钢股份有限公司 | Method for controlling iron scale on surface of strip steel produced by continuous casting and rolling of medium and thin slabs |
| US8057604B2 (en) * | 2005-03-17 | 2011-11-15 | Sms Siemag Aktiengesellschaft | Method and device for descaling metal strip |
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| CN103157658A (en) * | 2013-04-12 | 2013-06-19 | 湖南华菱涟源钢铁有限公司 | Process for rolling stainless steel coil on conventional hot continuous rolling production line |
| CN103752610A (en) * | 2013-12-25 | 2014-04-30 | 马钢(集团)控股有限公司 | 2250 hot continuous rolling producing method for improving surface quality of steel for automobile outer plate |
| CN104593687A (en) * | 2015-01-22 | 2015-05-06 | 首钢总公司 | Method for manufacturing high-strength and wear-resistant hot rolled steel sheet and high-strength and wear-resistant hot rolled steel sheet |
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2016
- 2016-03-09 CN CN201610133547.8A patent/CN105642672A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8057604B2 (en) * | 2005-03-17 | 2011-11-15 | Sms Siemag Aktiengesellschaft | Method and device for descaling metal strip |
| CN101012528A (en) * | 2007-01-25 | 2007-08-08 | 鞍钢股份有限公司 | Method for controlling iron scale on surface of strip steel produced by continuous casting and rolling of medium and thin slabs |
| CN102896161A (en) * | 2012-10-22 | 2013-01-30 | 河北省首钢迁安钢铁有限责任公司 | Method for removing steel hot rolling oxidized iron sheets for boracic cold rolling |
| CN103157658A (en) * | 2013-04-12 | 2013-06-19 | 湖南华菱涟源钢铁有限公司 | Process for rolling stainless steel coil on conventional hot continuous rolling production line |
| CN103752610A (en) * | 2013-12-25 | 2014-04-30 | 马钢(集团)控股有限公司 | 2250 hot continuous rolling producing method for improving surface quality of steel for automobile outer plate |
| CN104593687A (en) * | 2015-01-22 | 2015-05-06 | 首钢总公司 | Method for manufacturing high-strength and wear-resistant hot rolled steel sheet and high-strength and wear-resistant hot rolled steel sheet |
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