CN108714624A - Processing method of low-carbon aluminum killed steel pickled plate - Google Patents
Processing method of low-carbon aluminum killed steel pickled plate Download PDFInfo
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- CN108714624A CN108714624A CN201810387617.1A CN201810387617A CN108714624A CN 108714624 A CN108714624 A CN 108714624A CN 201810387617 A CN201810387617 A CN 201810387617A CN 108714624 A CN108714624 A CN 108714624A
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- Prior art keywords
- processing method
- method further
- killed steel
- finished product
- roughing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a processing method of a low-carbon aluminum killed steel pickled plate, wherein the pickled plate is a pickled plate finished product formed by the steps of heating, rough rolling, finish rolling, cooling, coiling and pickling of a plate blank, and the method further comprises the following steps: the mass content of silicon in the low-carbon aluminum killed steel is controlled to be below 0.03 percent. The method solves the technical problem of serious landscape painting on the surface of the low-carbon aluminum killed steel pickled plate, and achieves the technical effects of reducing iron scales, removing the iron scales to the maximum extent and controlling the appearance of the landscape painting.
Description
Technical field
The present invention relates to technical field of steel rolling, more particularly to a kind of processing method of carbon aluminium-killed steel acid-cleaning plate.
Background technology
Acid-cleaning plate is to remove oxide layer, surface quality and requirement through pickling unit using high-quality hot rolled sheet as raw material
Intermediate products between hot rolled plate and cold-reduced sheet have higher cost performance and development prospect, are obtained in automobile, household electric appliances
To extensive use.
But present inventor has found the above-mentioned prior art extremely during technical solution in realizing the embodiment of the present application
It has the following technical problems less：
Landscape painting is prevalent in carbon aluminium-killed steel pickling plate surface, is caused to subsequent plating, electrophoresis processing technology
Very big influence.It is scenery with hills and waters in a kind of sinuous, the Filamentous similar traditional Chinese Painting being distributed for be present in carbon aluminium-killed steel pickling plate surface
The defect of picture.
Correlative study shows that the stronger substance of adhesion based on strip superficial oxidation iron is the basic original for generating landscape painting
The main component of cause, the substance is FeO/Fe2SiO4 eutectic mixtures, is susceptible in steel of the Si contents more than 0.5%, macro
Apparent red rust defect is shown as in sight, and the Si contents of carbon aluminium-killed steel are relatively low, red rust defect will not macroscopic view show,
But microcosmic aggregation is showed, therefore the defect cannot be found in hot-rolled process, just be displayed after pickling, and adjust pickling
Improvement unobvious of the technological parameter to landscape painting
Invention content
The present invention provides a kind of processing methods of carbon aluminium-killed steel acid-cleaning plate, solve carbon aluminium-killed steel acid-cleaning plate
Landscape painting serious technical problem in surface has reached the generation of reduction iron sheet, and has farthest removed iron scale, controls scenery with hills and waters
Draw existing technique effect.
The present invention provides a kind of processing method of carbon aluminium-killed steel acid-cleaning plate, the acid-cleaning plate is heated by slab,
Roughing, finish rolling, cooling, batch, acid pickling step forms pickling board finished product, wherein the method further includes：In carbon aluminium-killed steel
The mass content of silicon controls below 0.03%.
Preferably, the method further includes：Ensure it is enough come out of the stove the time under conditions of, it is different according to hot-rolled finished product
The other tapping temperature to the carbon aluminium-killed steel of thick layer controls between 1130-1200 DEG C.
Preferably, the method further includes：When hot-rolled finished product thickness be [2.0,3.0mm) when, tapping temperature is reduced to
1180-1200℃。
Preferably, the method further includes：When hot-rolled finished product thickness be [3.0,5.0mm) when, tapping temperature is reduced to
1130-1180℃。
Preferably, the method further includes：When hot-rolled finished product thickness is [5.0,6.0], tapping temperature is reduced to 1130-
1170℃。
Preferably, the method further includes：Two reversable mills of roughing roll 6 passages altogether.
Preferably, the method further includes：6 passages of two reversable mills of the roughing use 3+3 patterns.
Preferably, the method further includes：In 6 passages of roughing rolling, thick de-scaling passage is promoted to the roads 5-6, ensures
The first passage de-scaling of roughing R1, R2, and R2 at least one is against passage de-scaling.
Preferably, the method further includes：In the finish rolling operation of rolling, the anti-peeling water of F1-F4 is all turned on, and is removed between rack
Squama water pressure >=20MPa.
Said one in the embodiment of the present invention or multiple technical solutions at least have following one or more technology effects
Fruit：
1, in a kind of processing method of carbon aluminium-killed steel acid-cleaning plate provided in an embodiment of the present invention, the acid-cleaning plate is by plate
Base is heated, roughing, finish rolling, cooling, batch, acid pickling step forms pickling board finished product, wherein the method further includes：Low-carbon
The mass content of silicon controls below 0.03% in aluminum killed steel.Solves carbon aluminium-killed steel acid-cleaning plate table by the above method
Landscape painting serious technical problem in face has reached the generation of reduction iron sheet, and has farthest removed iron scale, controls landscape painting
The technique effect of appearance.
2, the present invention by ensure it is enough come out of the stove the time under conditions of, it is not right according to the different thick layer of hot-rolled finished product
The tapping temperature of the carbon aluminium-killed steel controls between 1130-1200 DEG C, reach by slab hot rolling link heating temperature
Degree is greatly lowered, by controlling process parameter, in terms of the sticky iron sheet formation condition on avoid landscape painting production after pickling
Raw technique effect.
3, the embodiment of the present invention ensures roughing by the way that in 6 passages that roughing rolls, thick de-scaling passage is promoted to the roads 5-6
The first passage de-scaling of R1, R2, and R2 at least one reaches the iron scale removal utmostly by generation against passage de-scaling
Technique effect.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, below the special specific implementation mode for lifting the present invention.
Description of the drawings
Fig. 1 is a kind of flow chart of the processing method of carbon aluminium-killed steel acid-cleaning plate in the embodiment of the present invention.
Specific implementation mode
An embodiment of the present invention provides a kind of processing methods of carbon aluminium-killed steel acid-cleaning plate, solve carbon aluminium-killed steel
The serious technical problem of pickling plate surface landscape painting has reached the generation of reduction iron sheet, and has farthest removed iron scale, controls
The technique effect that landscape painting processed occurs.
Technical solution in the embodiment of the present invention, overall structure are as follows：
The present invention provides a kind of processing method of carbon aluminium-killed steel acid-cleaning plate, the acid-cleaning plate is heated by slab,
Roughing, finish rolling, cooling, batch, acid pickling step forms pickling board finished product, wherein the method further includes：In carbon aluminium-killed steel
The mass content of silicon controls below 0.03%.It is tight to solve carbon aluminium-killed steel pickling plate surface landscape painting by the above method
The technical problem of weight has reached the generation of reduction iron sheet, and has farthest removed iron scale, the technology that control landscape painting occurs
Effect.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
An embodiment of the present invention provides a kind of processing methods of carbon aluminium-killed steel acid-cleaning plate, referring to FIG. 1, the pickling
Plate is heated by slab, roughing, finish rolling, cooling, batch, acid pickling step forms pickling board finished product；Wherein, the method is also wrapped
It includes：The mass content of silicon controls below 0.03% in carbon aluminium-killed steel.
Specifically, the slab is heated, roughing, finish rolling, cooling, batches, forms the low-carbon aluminium after acid pickling step
Killed steel acid-cleaning plate.And the content of the slab silicon of STEELMAKING PRODUCTION must control 0.03% hereinafter, just can guarantee by
The slab of above-mentioned steps processing becomes the qualified pickling board finished product.Under the premise of ensureing enough time inside furnaces, to low-carbon
The tapping temperature of aluminum killed steel is controlled, other according to hot-rolled finished product different-thickness layer, and tapping temperature is reduced to 1130-1200
DEG C, keep finishing temperature, coiling temperature constant.It is other according to hot-rolled finished product different-thickness layer, tapping temperature is reduced to 1130-
1200 DEG C, keep finishing temperature, coiling temperature constant.In addition increase roughing de-scaling passage to the roads 5-6, ensure the first of R1, R2
Passage de-scaling, and R2 at least one is against passage de-scaling
Further, the method further includes：Ensure it is enough come out of the stove the time under conditions of, according to hot-rolled finished product difference
The other tapping temperature to the carbon aluminium-killed steel of thick layer control between 1130-1200 DEG C.
Further, the method further includes：When hot-rolled finished product thickness be [2.0,3.0mm) when, tapping temperature is reduced to
1180-1200℃。
Further, the method further includes：When hot-rolled finished product thickness be [3.0,5.0mm) when, tapping temperature is reduced to
1130-1180℃。
Further, the method further includes：When hot-rolled finished product thickness is [5.0,6.0], tapping temperature is reduced to
1130-1170℃。
Specifically, in order to ensure the quality of the acid-cleaning plate, the thickness of different hot-rolled finished products, tapping temperature difference.When
Hot-rolled finished product thickness be [2.0,3.0mm) when, tapping temperature is reduced to 1180-1200 DEG C；When hot-rolled finished product thickness be [3.0,
When 5.0mm), tapping temperature is reduced to 1130-1180 DEG C；When hot-rolled finished product thickness is [5.0,6.0], tapping temperature is reduced to
1130-1170℃。
Further, the method further includes：Two reversable mills of roughing roll 6 passages altogether.
Further, the method further includes：In 6 passages of roughing rolling, thick de-scaling passage is promoted to the roads 5-6, protects
Demonstrate,prove the first passage de-scaling of roughing R1, R2, and R2 at least one is against passage de-scaling.
Specifically, in 6 passages of roughing rolling, thick de-scaling passage is promoted to the roads 5-6, ensures the first of roughing R1, R2
Passage de-scaling, and R2 at least one is against passage de-scaling.Roughing rolling 6 passages in, in addition to last a time, remaining 5 into
Row de-scaling reaches the generation for reducing iron sheet, and the technique effect for utmostly removing the iron scale of generation.
Further, the method further includes：6 passages of two reversable mills of the roughing use 3+3 patterns.
Specifically, when acid-cleaning plate produces, two reversable mills of roughing roll 6 passages altogether, there is 3+3 and 1+5 both of which,
Preferential selection 3+3 patterns.
Further, the method further includes：In the finish rolling operation of rolling, the anti-peeling water of F1-F4 is all turned on, between rack
De-scaling water pressure >=20MPa reaches the technique effect of the iron scale removal utmostly by generation.
Said one in the embodiment of the present invention or multiple technical solutions at least have following one or more technology effects
Fruit：
1, in a kind of processing method of carbon aluminium-killed steel acid-cleaning plate provided in an embodiment of the present invention, the acid-cleaning plate is by plate
Base is heated, roughing, finish rolling, cooling, batch, acid pickling step forms pickling board finished product, wherein the method further includes：Low-carbon
The mass content of silicon controls below 0.03% in aluminum killed steel.Solves carbon aluminium-killed steel acid-cleaning plate table by the above method
Landscape painting serious technical problem in face has reached the generation of reduction iron sheet, and has farthest removed iron scale, controls landscape painting
The technique effect of appearance.
2, the present invention by ensure it is enough come out of the stove the time under conditions of, it is not right according to the different thick layer of hot-rolled finished product
The tapping temperature of the carbon aluminium-killed steel controls between 1130-1200 DEG C, reach by slab hot rolling link heating temperature
Degree is greatly lowered, by controlling process parameter, in terms of the sticky iron sheet formation condition on avoid landscape painting production after pickling
Raw technique effect.
3, the embodiment of the present invention ensures roughing by the way that in 6 passages that roughing rolls, thick de-scaling passage is promoted to the roads 5-6
The first passage de-scaling of R1, R2, and R2 at least one reaches the iron scale removal utmostly by generation against passage de-scaling
Technique effect.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this hair
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of processing method of carbon aluminium-killed steel acid-cleaning plate, which is characterized in that the acid-cleaning plate is heated by slab, thick
It rolls, finish rolling, cooling, batch, acid pickling step forms pickling board finished product, wherein the method further includes：
The mass content of silicon controls below 0.03% in carbon aluminium-killed steel.
2. processing method as described in claim 1, which is characterized in that the method further includes：
Ensure it is enough come out of the stove the time under conditions of, it is other to the carbon aluminium-killed steel according to the different thick layer of hot-rolled finished product
Tapping temperature control between 1130-1200 DEG C.
3. processing method as claimed in claim 2, which is characterized in that the method further includes：
When hot-rolled finished product thickness be [2.0,3.0mm) when, tapping temperature is reduced to 1180-1200 DEG C.
4. processing method as claimed in claim 2, which is characterized in that the method further includes：
When hot-rolled finished product thickness be [3.0,5.0mm) when, tapping temperature is reduced to 1130-1180 DEG C.
5. processing method as claimed in claim 2, which is characterized in that the method further includes：
When hot-rolled finished product thickness is [5.0,6.0], tapping temperature is reduced to 1130-1170 DEG C.
6. processing method as described in claim 1, which is characterized in that the method further includes：
Two reversable mills of roughing roll 6 passages altogether.
7. processing method as claimed in claim 6, which is characterized in that the method further includes：
6 passages of two reversable mills of the roughing use 3+3 patterns.
8. processing method as described in claim 1, which is characterized in that the method further includes：
In 6 passages of roughing rolling, thick de-scaling passage is promoted to the roads 5-6, ensures the first passage de-scaling of roughing R1, R2, and
R2 at least one is against passage de-scaling.
9. processing method as described in claim 1, which is characterized in that the method further includes：
In the finish rolling operation of rolling, the anti-peeling water of F1-F4 is all turned on, de-scaling water pressure >=20MPa between rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387617.1A CN108714624B (en) | 2018-04-26 | 2018-04-26 | Processing method of low-carbon aluminum killed steel pickled plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387617.1A CN108714624B (en) | 2018-04-26 | 2018-04-26 | Processing method of low-carbon aluminum killed steel pickled plate |
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| CN108714624A true CN108714624A (en) | 2018-10-30 |
| CN108714624B CN108714624B (en) | 2020-02-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438329A (en) * | 2019-07-23 | 2019-11-12 | 北京首钢股份有限公司 | A method of eliminating boracic carbon aluminium-killed steel steel band upwarping defect |
| CN113245367A (en) * | 2021-04-16 | 2021-08-13 | 首钢集团有限公司 | Method for reducing surface reticulate pattern defects of low-carbon aluminum killed steel pickled plate |
| CN113290047A (en) * | 2021-05-21 | 2021-08-24 | 新余钢铁股份有限公司 | Processing method of low-carbon acid-washing steel substrate |
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| EP0789090A1 (en) * | 1995-08-31 | 1997-08-13 | Kawasaki Steel Corporation | Hot-rolled steel sheet and process for producing the same |
| CN105316579A (en) * | 2014-07-29 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Thin hot rolled pickled steel plate and fabrication method thereof for water heater enamel liner |
| CN105689408A (en) * | 2016-03-07 | 2016-06-22 | 首钢京唐钢铁联合有限责任公司 | Hot rolling control method for iron scale on edge of low-carbon aluminum killed steel |
| CN106282766A (en) * | 2016-08-18 | 2017-01-04 | 武汉钢铁股份有限公司 | The 500MPa pickling steel of low surface roughness and production method thereof |
| CN106311745A (en) * | 2016-08-29 | 2017-01-11 | 首钢京唐钢铁联合有限责任公司 | Hot rolling method for reducing red rust on surface of hot-rolled strip steel |
-
2018
- 2018-04-26 CN CN201810387617.1A patent/CN108714624B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0789090A1 (en) * | 1995-08-31 | 1997-08-13 | Kawasaki Steel Corporation | Hot-rolled steel sheet and process for producing the same |
| CN105316579A (en) * | 2014-07-29 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Thin hot rolled pickled steel plate and fabrication method thereof for water heater enamel liner |
| CN105689408A (en) * | 2016-03-07 | 2016-06-22 | 首钢京唐钢铁联合有限责任公司 | Hot rolling control method for iron scale on edge of low-carbon aluminum killed steel |
| CN106282766A (en) * | 2016-08-18 | 2017-01-04 | 武汉钢铁股份有限公司 | The 500MPa pickling steel of low surface roughness and production method thereof |
| CN106311745A (en) * | 2016-08-29 | 2017-01-11 | 首钢京唐钢铁联合有限责任公司 | Hot rolling method for reducing red rust on surface of hot-rolled strip steel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438329A (en) * | 2019-07-23 | 2019-11-12 | 北京首钢股份有限公司 | A method of eliminating boracic carbon aluminium-killed steel steel band upwarping defect |
| CN110438329B (en) * | 2019-07-23 | 2022-07-19 | 北京首钢股份有限公司 | Method for eliminating skin warping defect of boron-containing low-carbon aluminum killed steel strip |
| CN113245367A (en) * | 2021-04-16 | 2021-08-13 | 首钢集团有限公司 | Method for reducing surface reticulate pattern defects of low-carbon aluminum killed steel pickled plate |
| CN113290047A (en) * | 2021-05-21 | 2021-08-24 | 新余钢铁股份有限公司 | Processing method of low-carbon acid-washing steel substrate |
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| CN108714624B (en) | 2020-02-07 |
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