CN107052060B - A method of eliminating acid-cleaning plate Pinhole-shaped point defect - Google Patents
A method of eliminating acid-cleaning plate Pinhole-shaped point defect Download PDFInfo
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- CN107052060B CN107052060B CN201710227575.0A CN201710227575A CN107052060B CN 107052060 B CN107052060 B CN 107052060B CN 201710227575 A CN201710227575 A CN 201710227575A CN 107052060 B CN107052060 B CN 107052060B
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- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The embodiment of the invention discloses a kind of methods for eliminating acid-cleaning plate surface pinholes shape point defect, comprising: comes out of the stove low temperature is carried out after heating of plate blank, is 1160 DEG C -1200 DEG C by tapping temperature control；Slab after heating is subjected to roughing, finish rolling, obtains strip, wherein in the finishing stands, control entry temperature at finishing is 950 DEG C -1000 DEG C, and control finishing temperature is 830 DEG C -870 DEG C；According to the thickness of the strip, straightening processing is carried out to the strip, wherein during the straightening, the straightening insertion that pulling-straightening equipment is arranged is greater than 20mm；Strip after straightening is subjected to pickling, obtains acid-cleaning plate.Method provided by the invention solves the technical issues of hot rolling acid-cleaning plate surface is easy to appear Pinhole-shaped point.Realize the technical effect for simply and effectively eliminating acid-cleaning plate surface pinholes shape point.
Description
Technical field
The present invention relates to a kind of sides for eliminating acid-cleaning plate Pinhole-shaped point defect of technical field of steel rolling more particularly to method
Method.
Background technique
Hot rolling acid-cleaning plate be using high-quality hot rolled strip as raw material, after pickling lines go removing oxide layer, trimming, surface matter
The intermediate products of amount and requirement between hot rolled plate and cold-reduced sheet, are the ideal substitute products of part cold-reduced sheet.Hot rolling
Acid-washed product is just used in automobile manufacture industry with unique advantages such as its surface quality, saving process energy consumptions more and more,
Mainstay material as high-grade chassis, wheel, safety member etc..
Hot rolling acid-cleaning plate Surface Quality requires height, and discovery pickling rear surface will appear Pinhole-shaped point in actual production,
For the shape like pin hole, point bottom is smooth, without any residue, is divided into random Pinhole-shaped point and regular Pinhole-shaped fiber crops
Point, drawbacks described above are significant on influences such as the process such as subsequent plating, electrophoresis, passivation, color coating, seriously affect the surface matter of product
Amount, some serious points are potential formation of crack, are easy to be further development of cracking defect after large deformation punching press, give steel
Producer and user all cause heavy losses.
It follows that the control of acid-cleaning plate surface pinholes shape point is the important research problem of technical field of steel rolling, it is existing
Hot rolling acid-cleaning plate surface is easy to appear the technical issues of Pinhole-shaped point in technology.
Summary of the invention
The embodiment of the present invention provides a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect, to solve in the prior art
Hot rolling acid-cleaning plate surface is easy to appear the technical issues of Pinhole-shaped point.
The embodiment of the present application provides a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect, which comprises
It comes out of the stove low temperature is carried out after heating of plate blank, is 1160 DEG C -1200 DEG C by tapping temperature control；
Slab after heating is subjected to roughing, finish rolling, obtains strip, wherein in the finishing stands, control finish rolling enters
Mouth temperature is 950 DEG C -1000 DEG C, and control finishing temperature is 830 DEG C -870 DEG C；
According to the thickness of the strip, straightening processing is carried out to the strip, wherein during the straightening, setting
The straightening insertion of pulling-straightening equipment is greater than 20mm；
Strip after straightening is subjected to pickling, obtains acid-cleaning plate.
Optionally, the pulling-straightening equipment includes straightening roll under roller under roller, the second broken phosphorus under the first broken phosphorus and broken phosphorus；Its
In, roller has the first insertion under the first broken phosphorus, and roller has the second insertion, the broken phosphorus under the second broken phosphorus
Lower straightening roll has third insertion.
Optionally, the thickness according to the strip carries out straightening processing to the strip, comprising:
When the acid-cleaning plate is with a thickness of 3mm-4mm, controls first insertion and inserted for 20-22mm, described second
Enter that amount is 21-23mm, the third insertion is 30-32mm.
Optionally, the thickness according to the strip carries out straightening processing to the strip, comprising:
When the strip is with a thickness of 4mm-5mm, first insertion is controlled as 22-25mm, second insertion
Amount is 23-26mm, the third insertion is 32-34mm.
Optionally, the thickness according to the strip carries out straightening processing to the strip, comprising:
When the acid-cleaning plate is with a thickness of 5mm-6mm, controls first insertion and inserted for 25-28mm, described second
Enter that amount is 26-29mm, the third insertion is 34-35mm.
Optionally, further includes: slab after it will heat carries out roughing, finish rolling, after obtaining strip, further includes:
The strip is batched, oiler temperature control is 580 DEG C -620 DEG C.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
The embodiment of the present application provides a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect, by the finishing stands
In, control entry temperature at finishing is 950 DEG C -1000 DEG C, and control finishing temperature is 830 DEG C -870 DEG C, by reducing hot rolling producing line
Temperature to reducing the thickness of steel slab surface iron scale, to reduce the electrochemical corrosion in acid cleaning process, further,
According to the thickness of the strip, straightening processing is carried out to the strip, the drawing of pulling-straightening equipment is set during the straightening
It rectifys insertion and is greater than 20mm；It can make cracking in iron scale, and weaken the effect of the electrochemical corrosion in acid cleaning process,
To reduce the generation of Pinhole-shaped point, can under conditions of having no need to change steel grades, by reduce producing line temperature and
The method for carrying out straightening processing according to steel strip thickness to strip, and straightening insertion being rationally arranged, which is realized, simply and effectively eliminates acid
The technical effect of board-washing surface pinholes shape point solves hot rolling acid-cleaning plate surface in the prior art and is easy to appear Pinhole-shaped point
The technical issues of.
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, the accompanying drawings in the following description is only the embodiment of the present invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to the attached drawing of offer other
Attached drawing.
The flow chart of the method for Fig. 1 acid-cleaning plate surface pinholes shape point provided in an embodiment of the present invention；
Fig. 2 is random Pinhole-shaped point defect shape appearance figure；
Fig. 3 is regular Pinhole-shaped point defect shape appearance figure；
Fig. 4 is conventional hot rolling technology acid-cleaning plate surface pinholes shape point shape appearance figure
Fig. 5 is hot rolling technology acid-cleaning plate surface pinholes shape point shape appearance figure during the present invention is implemented；；
Fig. 6 is flattening process acid-cleaning plate surface pinholes shape point shape appearance figure in the prior art；
Fig. 7 is the acid-cleaning plate surface pinholes shape point shape appearance figure that invention implements a kind of preferred embodiment；
Fig. 8 is existing straightening technique acid-cleaning plate surface pinholes shape point shape appearance figure；
Fig. 9 is acid-cleaning plate surface pinholes shape point shape appearance figure in another preferred embodiment of the present invention.
Specific embodiment
The embodiment of the present invention provides a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect, solves hot in the prior art
Roll the technical issues of pickling plate surface is easy to appear Pinhole-shaped point.Realize simply and effectively elimination acid-cleaning plate surface pinholes shape
The technical effect of point.
In order to solve above-mentioned technical problem of the existing technology, the overall of technical solution provided by the embodiments of the present application is thought
Road is as follows:
It comes out of the stove low temperature is carried out after heating of plate blank, is 1160 DEG C -1200 DEG C by tapping temperature control；
Slab after heating is subjected to roughing, finish rolling, obtains strip, wherein in the finishing stands, control finish rolling enters
Mouth temperature is 950 DEG C -1000 DEG C, and control finishing temperature is 830 DEG C -870 DEG C；
According to the thickness of the strip, straightening processing is carried out to the strip, wherein during the straightening, setting
The straightening insertion of pulling-straightening equipment is greater than 20mm；
Strip after straightening is subjected to pickling, obtains acid-cleaning plate.
Through the above as can be seen that by the finishing stands, control entry temperature at finishing be 950 DEG C-
1000 DEG C, control finishing temperature is 830 DEG C -870 DEG C, according to the thickness of the strip, carries out straightening processing to the strip, leads to
It crosses during the straightening, the straightening insertion that pulling-straightening equipment is arranged is greater than 20mm；Steel grades can had no need to change
Under the conditions of, by reducing producing line temperature and carrying out straightening processing to strip according to steel strip thickness, and straightening insertion is rationally set
Method realize simply and effectively eliminate acid-cleaning plate surface pinholes shape point technical effect, solve hot rolling in the prior art acid
Board-washing surface is easy to appear the technical issues of Pinhole-shaped point.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the present invention
The detailed description of technical solution, rather than the restriction to technical solution of the present invention, in the absence of conflict, the present invention are implemented
Technical characteristic in example and embodiment can be combined with each other.
In the present embodiment, a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect is provided, referring to FIG. 1, Fig. 1 is
A kind of flow chart for the method for eliminating acid-cleaning plate Pinhole-shaped point defect of Pinhole-shaped point method, the side in the embodiment of the present invention
Method includes:
Step S101: coming out of the stove low temperature is carried out after heating of plate blank, is 1160 DEG C -1200 DEG C by tapping temperature control；
Step S102: the slab after heating is subjected to roughing, finish rolling, obtains strip, wherein in the finishing stands,
Controlling entry temperature at finishing is 950 DEG C -1000 DEG C, and control finishing temperature is 830 DEG C -870 DEG C；
Step S103: according to the thickness of the strip, straightening processing is carried out to the strip, wherein in the straightening
Cheng Zhong, the straightening insertion that pulling-straightening equipment is arranged are greater than 20mm；
Step S104: the strip after straightening is subjected to pickling, obtains acid-cleaning plate.
Specifically, in the prior art, as shown in attached drawing 2 and attached drawing 3, random point distribution is like loose sand, in fact it could happen that
Any position, approximate circle or oval pattern, having a size of 100 μm -1000 μm, about 20-100 μm of depth.Regular point has
Regular point is printed along cross break and is distributed, and is occurred within plate wide width portion 0-200mm, and single pin hole point is mostly ellipse, multiple
Point easily connects into strip, approximate parallel with plate width direction.Present invention applicant passes through long-term practice discovery, acid-cleaning plate table
The mechanism that face point generates is that iron sheet peels off position matrix and the potential difference of its surrounding oxidic iron sheet causes electrochemical corrosion to cause
Pinhole-shaped point.It is cooled to room temperature after hot rolling is offline, when carrying out straightening or smooth process, surface in hot rolling uncoiling process
Iron scale is different with the elongation percentage of matrix, causes surface location iron scale random or print along cross break to peel off, pickling
Certain thickness iron sheet is shaped to primary battery with matrix group under the conditions of acid solution in journey, as iron scale and matrix constantly disappear
Consumption, matrix surface form Pinhole-shaped point.And in the production method of existing acid-cleaning plate, general finishing temperature 900 DEG C with
On, the present invention in the finishing stands, control entry temperature at finishing be 950 DEG C -1000 DEG C, control finishing temperature be 830 DEG C -
870 DEG C, by reducing the temperature of hot rolling producing line to reduce the thickness of steel slab surface iron scale, to reduce in acid cleaning process
Electrochemical corrosion, experimental result is referring specifically to Fig. 4 and Fig. 5, respectively pickling plate surface in hot rolling technology in the prior art
Pattern and the pattern for using pickling plate surface in the method for the present invention obtain pickling plate surface in method in the prior art by measurement
Pinhole-shaped point density is respectively 120/cm with acid-cleaning plate surface pinholes shape point density in the present invention2, 10/cm2, can be with
Find out, in method disclosed by the embodiments of the present invention: being 830 DEG C -870 DEG C by control finishing temperature, it is possible to reduce acid-cleaning plate table
The generation of the Pinhole-shaped point in face.
In the production method of common acid-cleaning plate, after finish-rolling process generally use flattening process, the present invention in, will put down
Whole technique adjustment is straightening technique, and according to the thickness of the strip, carries out straightening processing to the strip, pass through the straightening
In the process, the straightening insertion that pulling-straightening equipment is arranged is greater than 20mm；And straightening step, can be by right before acid pickling step
Strip, which carries out curved rectify, makes its scale on surface layer split, be crushed, thus weaken effect of the iron scale in electrochemical corrosion,
And then the generation of Pinhole-shaped point is reduced, it can be under conditions of having no need to change steel grades, according to steel strip thickness to strip
The method for carrying out straightening processing, and straightening insertion being rationally arranged, which is realized, simply and effectively eliminates acid-cleaning plate surface pinholes shape point
Technical effect, solve the technical issues of hot rolling acid-cleaning plate surface is easy to appear Pinhole-shaped point in the prior art.
In the method disclosed by the embodiments of the present invention for eliminating acid-cleaning plate surface pinholes shape point defect, straightening processing is to use
What pulling-straightening equipment was realized, the pulling-straightening equipment includes straightening roll under roller under roller, the second broken phosphorus under the first broken phosphorus and broken phosphorus；Its
In, roller has the first insertion under the first broken phosphorus, and roller has the second insertion, the broken phosphorus under the second broken phosphorus
Lower straightening roll has third insertion.
Specifically, in the method disclosed by the embodiments of the present invention for eliminating acid-cleaning plate surface pinholes shape point defect, described
According to the thickness of the strip, straightening processing is carried out to the strip, comprising: when the acid-cleaning plate is with a thickness of 3mm-4mm, control
Make first insertion is 20-22mm, second insertion is 21-23mm, the third insertion is 30-32mm.
Specifically, in the method disclosed by the embodiments of the present invention for eliminating acid-cleaning plate surface pinholes shape point defect, described
According to the thickness of the strip, straightening processing is carried out to the strip, comprising: when the strip is with a thickness of 4mm-5mm, control
First insertion is 22-25mm, second insertion is 23-26mm, the third insertion is 32-34mm.Below
By taking the strip with a thickness of 4.55mm as an example, respectively to the acid-cleaning plate of acid-cleaning plate and the method for the present invention production produced in the prior art
Surface topography measure, experimental result referring specifically to fig. 6 and Fig. 7, respectively acid-cleaning plate in flattening process in the prior art
The pattern of the pickling plate surface of straightening technique in the pattern and the present invention on surface, it can be seen that in the method in the embodiment of the present invention
Substantially it is generated without Pinhole-shaped point, in method disclosed by the embodiments of the present invention: according to the thickness of the strip, to the strip
Straightening processing is carried out, when the acid-cleaning plate is with a thickness of 3mm-4mm, controlling first insertion is 20-22mm, described the
Two insertions are 21-23mm, the third insertion is 30-32, can effectively eliminate the Pinhole-shaped point of pickling plate surface.
Specifically, in the method disclosed by the embodiments of the present invention for eliminating acid-cleaning plate surface pinholes shape point defect, described
According to the thickness of the strip, straightening processing is carried out to the strip, comprising: when the acid-cleaning plate is with a thickness of 5mm-6mm, control
Make first insertion is 25-28mm, second insertion is 26-29mm, the third insertion is 34-35mm.Under
Face is by taking the strip with a thickness of 5mm as an example, respectively to the surface using conventional straightening technique and the acid-cleaning plate of the method for the present invention production
Pattern measures, experimental result referring specifically to Fig. 8 and Fig. 9, in respectively existing straightening technique the pattern of pickling plate surface and
The pattern of the pickling plate surface of straightening technique in the present invention, it can be seen that Pinhole-shaped point in the method in the embodiment of the present invention
Density is smaller, according to the thickness of the strip, carries out straightening processing to the strip, and insertion is bigger, Pinhole-shaped point
It is fewer.
In order to be further reduced the generation of Pinhole-shaped point, a kind of elimination acid-cleaning plate Pinhole-shaped point disclosed by the invention is scarce
In sunken method further include: slab after it will heat carries out roughing, finish rolling, after obtaining strip, further includes: by the strip
It is batched, oiler temperature control is 580 DEG C -620 DEG C.
It should be noted that although open in the prior art reduce pickling by changing the method for steel billet ingredient and content
The method of plate surface scale mark defect, and disclosed in the present application is Pinhole-shaped point, Pinhole-shaped point and scale mark exist
Difference substantially, firstly, producing cause is different, scale mark is usually in course of hot rolling caused by iron scale indentation；Needle
Poroid point not instead of scale mark is formed in a kind of acid cleaning process, the reason is that the matrix of iron sheet exfoliation and its around
Iron scale, electrochemical corrosion under the conditions of acid solution；And then also have any different on the two pattern, become after scale mark pickling
Pockmark, hole bottom is coarse, there is residual oxidization iron sheet；Pinhole-shaped point, hole back light is sliding, and there is no residual iron sheets.And the prior art
In method need to change the ingredient and content of steel billet, need by largely testing, realize complex, and the side of the application
Method haves no need to change the ingredient of steel grade, can simply and effectively eliminate acid-cleaning plate surface pinholes shape point defect.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
The embodiment of the present application provides a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect, by the finishing stands
In, control entry temperature at finishing is 950 DEG C -1000 DEG C, and control finishing temperature is 830 DEG C -870 DEG C, by reducing hot rolling producing line
Temperature to reducing the thickness of steel slab surface iron scale, to reduce the electrochemical corrosion in acid cleaning process, further,
According to the thickness of the strip, straightening processing is carried out to the strip, the drawing of pulling-straightening equipment is set during the straightening
It rectifys insertion and is greater than 20mm；It can make cracking in iron scale, and weaken the effect of the electrochemical corrosion in acid cleaning process,
To reduce the generation of Pinhole-shaped point, can under conditions of having no need to change steel grades, by reduce producing line temperature and
The method for carrying out straightening processing according to steel strip thickness to strip, and straightening insertion being rationally arranged, which is realized, simply and effectively eliminates acid
The technical effect of board-washing surface pinholes shape point solves hot rolling acid-cleaning plate surface in the prior art and is easy to appear Pinhole-shaped point
The technical issues of.
The embodiment of the present application provides a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect, passes through setting and steel strip thickness
Corresponding straightening insertion, can further eliminate acid-cleaning plate surface pinholes shape point.
The embodiment of the present application provides a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect, by after finish rolling, to institute
It states strip to be batched, and is 580 DEG C -620 DEG C by oiler temperature control, by reducing coiling temperature, can be further reduced
The thickness of acid-cleaning plate scale on surface.
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 may 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, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (3)
1. a kind of method for eliminating acid-cleaning plate Pinhole-shaped point defect characterized by comprising
It comes out of the stove low temperature is carried out after heating of plate blank, is 1160 DEG C -1200 DEG C by tapping temperature control；
Slab after heating is subjected to roughing, finish rolling, obtains strip, wherein in the finishing stands, controls finish rolling entrance temperature
Degree is 950 DEG C -1000 DEG C, and control finishing temperature is 830 DEG C -870 DEG C；
The strip is batched, oiler temperature control is 580 DEG C -620 DEG C；
According to the thickness of the strip, straightening processing is carried out to the strip, wherein during the straightening, straightening is set
The straightening insertion of equipment is greater than 20mm；
Strip after straightening is subjected to pickling, obtains acid-cleaning plate；
The pulling-straightening equipment includes straightening roll under roller under roller, the second broken phosphorus under the first broken phosphorus and broken phosphorus；Wherein, described first
Roller has the first insertion under broken phosphorus, and roller has the second insertion under the second broken phosphorus, and straightening roll has under the broken phosphorus
There is third insertion；
Wherein, the thickness according to the strip carries out straightening processing to the strip, comprising:
When the acid-cleaning plate is with a thickness of 3mm-4mm, controlling first insertion is 20-22mm, second insertion
It is 30-32mm for 21-23mm, the third insertion.
2. the method as described in claim 1, which is characterized in that the thickness according to the strip carries out the strip
Straightening processing, comprising:
When the strip is with a thickness of 4mm-5mm, control first insertion is 22-25mm, second insertion is
23-26mm, the third insertion are 32-34mm.
3. the method as described in claim 1, which is characterized in that the thickness according to the strip carries out the strip
Straightening processing, comprising:
When the acid-cleaning plate is with a thickness of 5mm-6mm, controlling first insertion is 25-28mm, second insertion
It is 34-35mm for 26-29mm, the third insertion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710227575.0A CN107052060B (en) | 2017-04-07 | 2017-04-07 | A method of eliminating acid-cleaning plate Pinhole-shaped point defect |
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| CN201710227575.0A CN107052060B (en) | 2017-04-07 | 2017-04-07 | A method of eliminating acid-cleaning plate Pinhole-shaped point defect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107626739B (en) * | 2017-10-16 | 2019-03-29 | 首钢集团有限公司 | A kind of process for realizing hot-strip finishing using pulling-straightening equipment |
| CN111501052A (en) * | 2019-01-30 | 2020-08-07 | 宝山钢铁股份有限公司 | Pickling process method for high-temperature coil material and application |
| CN110369528A (en) * | 2019-07-09 | 2019-10-25 | 张家港扬子江冷轧板有限公司 | A method of improving DC01 strip pickling speed |
| CN112893477B (en) * | 2019-11-19 | 2022-05-10 | 上海梅山钢铁股份有限公司 | Hot-rolled pickled plate reduction trimming amount control method |
| CN111659732B (en) * | 2020-06-08 | 2022-04-19 | 首钢集团有限公司 | Method for solving corrosion of high-manganese hot-formed steel after pickling |
| CN113145642B (en) * | 2021-04-01 | 2023-03-28 | 首钢京唐钢铁联合有限责任公司 | Pickling plate and preparation method thereof |
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| CN106424170A (en) * | 2016-09-28 | 2017-02-22 | 邯钢集团邯宝钢铁有限公司 | Pickling line tandem cold mill withdrawal and straightening machine control method |
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