CN115672980A - Preparation process of stainless steel ultra-thin strip - Google Patents
Preparation process of stainless steel ultra-thin strip Download PDFInfo
- Publication number
- CN115672980A CN115672980A CN202211461415.XA CN202211461415A CN115672980A CN 115672980 A CN115672980 A CN 115672980A CN 202211461415 A CN202211461415 A CN 202211461415A CN 115672980 A CN115672980 A CN 115672980A
- Authority
- CN
- China
- Prior art keywords
- rolling
- annealing
- stainless steel
- pass
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Metal Rolling (AREA)
Abstract
The invention belongs to the field of stainless steel ultra-thin strips, and particularly relates to a preparation process of a stainless steel ultra-thin strip, which comprises the following steps of 1, carrying out first rolling, and cold-rolling raw materials for multiple times to a preset thickness; step 2, first annealing: annealing the preliminarily rolled stainless steel band by a continuous annealing furnace; step 3, second rolling, namely, cold rolling the stainless steel band subjected to the first annealing again to a preset thickness; step 4, second annealing: the second rolled stainless steel strip was annealed by passing through a continuous annealing furnace. The rolling process comprises three stages of rolling annealing processes, the ranges of pass reduction rate, rolling tension and rolling pressure of each pass process are refined, the thickness tolerance of each stage is guaranteed to fluctuate within a small range, and good plate shape of a 1000 mm-grade ultra-wide stainless steel ultra-thin strip is guaranteed by rolling in stages and adopting a middle roller as a conical roller.
Description
Technical Field
The invention relates to the field of stainless steel ultrathin strips, in particular to a preparation process of a stainless steel ultrathin strip.
Background
Continuous innovation of science and technology promotes equipment to develop in the direction of high performance, high precision and low weight, and the progress of the equipment puts higher product requirements on industry manufacturers of raw materials.
The invention provides a bright annealing rolling process for forming a wide stainless steel ultra-thin strip by micro rolling, which is a difficult problem in the precision stainless steel industry, often has the problems of difficult guarantee of thickness tolerance, difficult control of plate shape, uneven surface roughness, low surface gloss and the like, and aims to solve the technical problem of the 1000mm ultra-wide BA-grade stainless steel ultra-thin strip.
Disclosure of Invention
The invention provides a preparation process of a stainless steel ultra-thin strip, which aims to make up the defects of the prior art and solve the problems that the thickness tolerance is difficult to ensure, the plate shape is difficult to control, the surface roughness is uneven and the surface gloss is low when the wide stainless steel ultra-thin strip is formed by micro rolling.
The technical scheme adopted by the invention for solving the technical problems is as follows: the preparation process of the stainless steel ultra-thin strip comprises the following steps,
step 1, first rolling, wherein the raw material is subjected to multiple cold rolling to a preset thickness;
step 2, first annealing: annealing the preliminarily rolled stainless steel band by a continuous annealing furnace;
step 3, second rolling, namely cold rolling the stainless steel band subjected to the first annealing again to a preset thickness;
step 4, second annealing: annealing the second rolled stainless steel band through a continuous annealing furnace;
step 5, rolling for the third time, namely cold-rolling the stainless steel band subjected to the secondary annealing again to the designed thickness of a finished product;
step 6, annealing for the third time, namely pickling the stainless steel band subjected to the third rolling and then carrying out bright annealing;
and 7, straightening a finished product, namely straightening and forming the bright annealed stainless steel band by a straightening and withdrawal machine.
A400 series stainless steel strip 3mm × 1000mm in thickness was selected as a raw material, and was placed on a coiler at both ends of a twenty high rolling mill having a work roll surface width of 1050mm through a process of strip feeding, strip threading, and the like.
Preferably, the first rolling, the second rolling and the third rolling are all performed by twenty-high rolling mills, the width of the roll surface is 1050mm, the rolling mills are reversible rolling mills, the rolling direction needs to be changed after one pass of rolling, and the work rolls are temporarily stopped to be changed when the rolling direction is changed. And a plurality of pairs of working roller flows are configured for replacing in one rolling mill, and the used working roller needs to be re-polished by the grinding machine in time, so that the surface friction parameter of the working roller is stabilized at a target parameter.
Preferably, the diameter of the support roll in the first rolling, the second rolling and the third rolling is 300mm, the diameter of the second intermediate roll is 173mm, the diameter of the first intermediate roll is 103mm, and the diameter of the working roll is 63.5mm
Preferably, the middle roller is a conical roller, the conical height is 16 mu m, the conical length is 250mm, the middle roller is a conical roller with a roller end designed to be provided with a straight chamfer, and the roller with the roller shape at the roller end is matched with the axial transverse moving technology of the roller, so that the plate shape quality of the edge of the strip steel can be effectively improved.
Preferably, the total rolling times of the first rolling, the second rolling and the third rolling are 20 times, and the working roll is changed every 3 to 4 times.
Preferably, the number of times of the first rolling refrigeration pass is 3-5, and the rolling preset thickness is 0.72mm-1.23mm;
when the first rolling is 4 passes, the thickness of the rolled strip is 0.823mm, and the rolling parameters are as follows:
the first time: the reduction rate is 30%, the rolling tension is 28t, the rolling pressure is 230t, and the thickness after rolling is 2.100mm;
and (3) second pass: the reduction rate is 30 percent, the rolling tension is 25t, the rolling pressure is 260t, and the thickness after rolling is 1.470mm;
and a third step: the reduction rate is 20%, the rolling tension is 20t, the rolling pressure is 270t, and the thickness after rolling is 1.176mm;
and a fourth pass: the reduction was 20%, the rolling tension was 16t, the rolling pressure was 280t, and the thickness after rolling was 0.823mm.
The number of times of the second rolling refrigeration pass is 7-9, and the rolling preset thickness is 0.12mm-0.2mm;
when the second rolling is carried out for 8 times, the thickness of the rolled strip is 0.176mm, and the rolling parameters are as follows:
the first time: the reduction ratio was 20%, the rolling tension was 15t, the rolling pressure was 300t, and the thickness after rolling was 0.659mm.
And (3) a second pass: the reduction was 20%, the rolling tension was 15t, the rolling pressure was 320t, and the thickness after rolling was 0.527mm.
And a third step: the reduction ratio was 20%, the rolling tension was 13t, the rolling pressure was 320t, and the thickness after rolling was 0.421mm.
And a fourth pass: the reduction ratio was 20%, the rolling tension was 13t, the rolling pressure was 340t, and the thickness after rolling was 0.337mm.
And (5) fifth pass: the reduction was 15%, the rolling tension was 13t, the rolling pressure was 340t, and the thickness after rolling was 0.287mm.
And a sixth pass: the reduction ratio was 15%, the rolling tension was 10t, the rolling pressure was 340t, and the thickness after rolling was 0.240mm.
And a seventh step: the reduction ratio was 15%, the rolling tension was 10t, the rolling pressure was 355t, and the thickness after rolling was 0.207mm.
And eighth pass: the reduction ratio was 15%, the rolling tension was 9t, the rolling pressure was 355t, and the thickness after rolling was 0.176mm.
The number of times of the third rolling refrigeration pass is 7-9, and the preset rolling thickness is 0.065mm-0.075mm.
When the third rolling is carried out for 8 times, the thickness of the rolled strip is 0.073mm, and the rolling parameters are as follows:
the first time: the reduction ratio was 12%, the rolling tension was 7t, the rolling pressure was 370t, and the thickness after rolling was 0.155mm.
And (3) a second pass: the reduction was 12%, the rolling tension was 7t, the rolling pressure was 410t, and the thickness after rolling was 0.136mm.
And a third step: the reduction rate was 12%, the rolling tension was 6t, the rolling pressure was 410t, and the thickness after rolling was 0.120mm.
And a fourth pass: the reduction ratio was 12%, the rolling tension was 6t, the rolling pressure was 430t, and the thickness after rolling was 0.106mm.
And (5) fifth pass: the reduction ratio was 10%, the rolling tension was 5t, the rolling pressure was 430t, and the thickness after rolling was 0.095mm.
And a sixth pass: the reduction rate was 10%, the rolling tension was 5t, the rolling pressure was 440t, and the thickness after rolling was 0.085mm.
And a seventh step: the reduction rate was 8%, the rolling tension was 4t, the rolling pressure was 440t, and the thickness after rolling was 0.078mm.
And eighth pass: the reduction rate was 7%, the rolling tension was 2t, the rolling pressure was 450t, and the thickness after rolling was 0.073mm.
The single pass reduction rate is gradually reduced along with the rolling stage, the quality of the plate shape is conveniently controlled, the plate shape is quickly thinned through larger reduction rate in primary rolling, the number of rolling passes is smaller than that of secondary rolling and finished product rolling, the reduction rate is reduced in the secondary rolling and finished product rolling, and the probability of the plate shape of a strip is reduced.
Preferably, the surface roughness of the working roll in the first rolling is Ra0.7;
the surface roughness of the working roll in the second rolling is Ra0.5;
the surface roughness before the N-1 pass in the third rolling is Ra0.34, the surface roughness of the N-1 pass is Ra0.2, and the surface roughness of the N pass is Ra0.02;
the surface roughness of the work rolls directly affects the surface quality of the strip, and in particular in the final rolling step, it is necessary to replace three times with a lower and lower surface roughness to ensure the surface quality of the final strip.
Preferably, the single-pass reduction rate of the first rolling cold rolling is 20-30%, the rolling tension is 15-30 t, and the rolling pressure is 220-290 t;
the single-pass reduction of the second rolling cold rolling is 15-20%, the rolling tension is 8t-15t, and the rolling pressure is 290t-360t;
the single-pass reduction of the third rolling cold rolling is 7-12%, the rolling tension is 1-8 t, and the rolling pressure is 360-450 t.
Preferably, the first annealing and the second annealing are both micro-oxygen annealing, the oxygen content in the first annealing and the second annealing is 3% -6%, the annealing temperature is 1000 ℃ -1200 ℃, the temperature of an annealing cooling section is 300 ℃ -450 ℃, and acid washing is carried out after the annealing is finished to remove surface oxidation.
Preferably, the annealing temperature in the third annealing is set to 1050-1150 ℃, the hydrogen concentration is not lower than 99.99%, the annealing tension is 1-8 t, and the third annealing after the third rolling is full hydrogen bright annealing, so that the cost is saved and the good surface gloss of the finished product is ensured.
The invention has the advantages that:
(1) The rolling annealing process of three stages is adopted to refine the ranges of pass reduction rate, rolling tension and rolling pressure of each pass process, ensure that the thickness tolerance of each stage fluctuates within a small range, and ensure that the plate shape of the ultra-wide stainless steel ultra-thin strip of 1000mm grade is good by rolling in stages and adopting a middle roller as a conical roller.
(2) The first rolling, the second rolling and the third rolling adopt working rolls with progressive surface roughness, and the working rolls are replaced once in the last two passes of the finished product rolling, so that the surface roughness of the stainless steel ultra-thin strip is stable.
(3) The first two times of annealing adopt a micro-oxidation annealing process and then acid cleaning to remove a surface oxide layer and control the surface glossiness, and the third time of annealing after the third rolling adopts full-hydrogen bright annealing, so that the cost is saved and the surface glossiness of the finished product is ensured to be good.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A preparation process of a stainless steel ultra-thin strip is characterized by comprising the following steps of,
step 1, first rolling, wherein the raw material is subjected to multiple cold rolling to a preset thickness;
step 2, first annealing: annealing the preliminarily rolled stainless steel band by a continuous annealing furnace;
step 3, second rolling, namely, cold rolling the stainless steel band subjected to the first annealing again to a preset thickness;
step 4, secondary annealing: annealing the second rolled stainless steel band by a continuous annealing furnace;
step 5, rolling for the third time, namely cold-rolling the stainless steel band subjected to the secondary annealing again to the designed thickness of a finished product;
step 6, annealing for the third time, namely pickling the stainless steel band subjected to the third rolling and then carrying out bright annealing;
and 7, straightening and drawing a finished product, namely straightening and forming the bright annealed stainless steel band by a straightening and drawing machine.
A400 series stainless steel strip 3mm × 1000mm in thickness was selected as a raw material, and was placed on a coiler at both ends of a twenty high rolling mill having a work roll surface width of 1050mm through a process of strip feeding, strip threading, and the like.
In this embodiment, the first rolling, the second rolling and the third rolling are all performed by twenty-high rolling mills, the width of the roll surface is 1050mm, the rolling mills are reversible rolling mills, the rolling direction needs to be changed after one pass of rolling, and the work rolls are temporarily stopped to be changed when the rolling direction is changed. A plurality of pairs of working roller flows are configured for replacing one rolling mill, and the used working roller needs to be re-ground by the grinding machine in time, so that the surface friction parameters of the working roller are stabilized at target parameters.
In this embodiment, the diameter of the support roll in the first rolling, the second rolling and the third rolling is 300mm, the diameter of the second intermediate roll is 173mm, the diameter of the first intermediate roll is 103mm, and the diameter of the work roll is 63.5mm
In the embodiment, the middle roller is a conical roller, the conical height is 16 mu m, the conical length is 250mm, the middle roller is a conical roller with a roller end designed to be provided with a straight chamfer, and the roller with the roller shape at the roller end is matched with the axial transverse moving technology of the roller, so that the plate shape quality of the edge of the strip steel can be effectively improved.
In the embodiment, the total rolling times of the first rolling, the second rolling and the third rolling are 20 times, and the working roll is changed every 3 to 4 times;
theoretically, the more times, the less rolling reduction per pass is controlled, the smaller the probability of plate shape occurrence is, but the cost consumption is increased by correspondingly increasing the rolling passes, and 20 passes are in the best state at the balance point of cost and no plate shape occurrence.
In the embodiment, the number of times of the first rolling refrigeration pass is 3-5, and the rolling preset thickness is 0.72mm-1.23mm;
when the first rolling is 4 passes, the thickness of the rolled strip is 0.823mm, and the rolling parameters are as follows:
the first time: the reduction rate is 30%, the rolling tension is 28t, the rolling pressure is 230t, and the thickness after rolling is 2.100mm; and (3) a second pass: the reduction rate is 30 percent, the rolling tension is 25t, the rolling pressure is 260t, and the thickness after rolling is 1.470mm; and a third step: the reduction rate is 20%, the rolling tension is 20t, the rolling pressure is 270t, and the thickness after rolling is 1.176mm; and a fourth pass: the reduction was 20%, the rolling tension was 16t, the rolling pressure was 280t, and the thickness after rolling was 0.823mm.
The number of times of the second rolling refrigeration pass is 7-9, and the rolling preset thickness is 0.12mm-0.2mm;
when the second rolling is carried out for 8 times, the thickness of the rolled strip is 0.176mm, and the rolling parameters are as follows:
the first time: the reduction rate is 20 percent, the rolling tension is 15t, the rolling pressure is 300t, and the thickness after rolling is 0.659mm; and (3) a second pass: the reduction rate is 20 percent, the rolling tension is 15t, the rolling pressure is 320t, and the thickness after rolling is 0.527mm; and a third step: the reduction rate is 20 percent, the rolling tension is 13t, the rolling pressure is 320t, and the thickness after rolling is 0.421mm; and a fourth pass: the reduction rate is 20 percent, the rolling tension is 13t, the rolling pressure is 340t, and the thickness after rolling is 0.337mm; and a fifth pass: the reduction rate is 15%, the rolling tension is 13t, the rolling pressure is 340t, and the thickness after rolling is 0.287mm; and a sixth pass: the reduction rate is 15%, the rolling tension is 10t, the rolling pressure is 340t, and the thickness after rolling is 0.240mm; and a seventh step: the reduction rate is 15%, the rolling tension is 10t, the rolling pressure is 355t, and the thickness after rolling is 0.207mm; and eighth pass: the reduction rate is 15 percent, the rolling tension is 9t, the rolling pressure is 355t, and the thickness after rolling is 0.176mm; the number of times of the third rolling refrigeration pass is 7-9, and the preset rolling thickness is 0.065mm-0.075mm.
When the third rolling is carried out for 8 times, the thickness of the rolled strip is 0.073mm, and the rolling parameters are as follows:
the first time: the reduction rate is 12 percent, the rolling tension is 7t, the rolling pressure is 370t, and the thickness after rolling is 0.155mm; and (3) second pass: the reduction rate is 12%, the rolling tension is 7t, the rolling pressure is 410t, and the thickness after rolling is 0.136mm; and a third step: the reduction rate is 12%, the rolling tension is 6t, the rolling pressure is 410t, and the thickness after rolling is 0.120mm; and a fourth pass: the reduction rate is 12%, the rolling tension is 6t, the rolling pressure is 430t, and the thickness after rolling is 0.106mm; and a fifth pass: the reduction rate is 10 percent, the rolling tension is 5t, the rolling pressure is 430t, and the thickness after rolling is 0.095mm; and a sixth pass: the reduction rate is 10%, the rolling tension is 5t, the rolling pressure is 440t, and the thickness after rolling is 0.085mm; and a seventh step: the reduction rate is 8 percent, the rolling tension is 4t, the rolling pressure is 440t, and the thickness after rolling is 0.078mm; and eighth pass: the reduction rate was 7%, the rolling tension was 2t, the rolling pressure was 450t, and the thickness after rolling was 0.073mm.
The single-pass reduction rate is gradually reduced along with the rolling stage, the quality of the plate shape is convenient to control, the plate shape is quickly thinned through larger reduction rate in primary rolling, the number of rolling passes is smaller than that of secondary rolling and finished product rolling, the reduction rate is reduced in the secondary rolling and the finished product rolling, and the probability of the plate shape of the strip is reduced.
In this embodiment, the surface roughness of the working roll in the first rolling is ra0.7;
the surface roughness of the working roll in the second rolling is Ra0.5;
the surface roughness before the N-1 pass in the third rolling is Ra0.34, the surface roughness of the N-1 pass is Ra0.2, and the surface roughness of the Nth pass is Ra0.02;
if the third rolling is 7 passes, and N-1 is 5, the Ra0.34 is adopted by the working roll of the first 5 passes, ra0.2 is adopted by the sixth pass, and Ra0.02 is adopted by the seventh pass;
if the third rolling is 9 passes and N-1 is 7, ra0.34 is adopted by the working roll of the previous 7 passes, ra0.2 is adopted by the eighth pass and Ra0.02 is adopted by the ninth pass;
the surface roughness of the work rolls directly affects the surface quality of the strip, and in particular in the final rolling step, it is necessary to replace three times with a lower and lower surface roughness to ensure the surface quality of the final strip.
In the embodiment, the single-pass reduction rate of the first rolling cold rolling is 20-30%, the rolling tension is 15-30 t, and the rolling pressure is 220-290 t;
the single-pass reduction of the second rolling cold rolling is 15-20%, the rolling tension is 8t-15t, and the rolling pressure is 290t-360t;
the single-pass reduction of the third rolling cold rolling is 7-12%, the rolling tension is 1t-8t, and the rolling pressure is 360t-450t.
In the embodiment, the first annealing and the second annealing are both micro-oxygen annealing, the oxygen content in the first annealing and the second annealing is 3% -6%, the annealing temperature is 1000 ℃ -1200 ℃, the temperature of the annealing cooling section is 300 ℃ -450 ℃, and acid washing is performed after the annealing is finished to remove surface oxidation.
In the embodiment, the annealing temperature in the third annealing is set to 1050-1150 ℃, the hydrogen concentration is not lower than 99.99%, the annealing tension is 1-8 t, and the third annealing after the third rolling is full hydrogen bright annealing, so that the cost is saved, and the good surface gloss of the finished product is ensured.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. A preparation process of a stainless steel ultra-thin strip is characterized by comprising the following steps of,
step 1, first rolling, wherein the raw material is subjected to multiple cold rolling to reach a preset thickness;
step 2, first annealing: annealing the preliminarily rolled stainless steel band by a continuous annealing furnace;
step 3, second rolling, namely, cold rolling the stainless steel band subjected to the first annealing again to a preset thickness;
step 4, second annealing: annealing the second rolled stainless steel band by a continuous annealing furnace;
step 5, rolling for the third time, and cold-rolling the stainless steel band annealed for the second time again to the designed thickness of a finished product;
step 6, annealing for the third time, namely pickling the stainless steel band subjected to the third rolling and then carrying out bright annealing;
and 7, straightening and drawing a finished product, namely straightening and forming the bright annealed stainless steel band by a straightening and drawing machine.
2. The process of claim 1, wherein the process comprises the following steps: the first rolling, the second rolling and the third rolling are all rolled by a twenty-high rolling mill, and the width of the roll surface is 1050mm.
3. The process for preparing the ultra-thin strip of stainless steel as claimed in claim 2, wherein: the diameter of the supporting roller in the first rolling, the second rolling and the third rolling is 300mm, the diameter of the two middle rollers is 173mm, the diameter of the one middle roller is 103mm, and the diameter of the working roller is 63.5mm.
4. The process of claim 3, wherein the step of preparing the ultra-thin strip of stainless steel comprises the following steps: the first middle roller is a conical roller, the conical height is 16 mu m, and the conical length is 250mm.
5. The process of claim 1, wherein the process comprises the following steps: and the total rolling times of the first rolling, the second rolling and the third rolling are 20 times, and the working roll is changed every 3 to 4 times.
6. The process of claim 5, wherein the step of preparing the ultra-thin strip of stainless steel comprises the following steps: the number of times of the first rolling refrigeration pass is 3-5;
the number of times of the second rolling refrigeration pass is 7-9;
the number of times of the third rolling refrigeration pass is 7-9.
7. The process for preparing a stainless steel ultra thin strip according to any one of claims 1 to 6, characterized in that:
the surface roughness of the working roll in the first rolling is Ra0.7;
the surface roughness of the working roll in the second rolling is Ra0.5;
the surface roughness before the N-1 pass in the third rolling is Ra0.34, the surface roughness of the N-1 pass is Ra0.2, and the surface roughness of the N pass is Ra0.02.
8. The process for preparing a stainless steel ultra thin strip according to any one of claims 1 to 6, characterized in that:
the single-pass reduction rate of the first rolling cold rolling is 20-30%, the rolling tension is 15-30 t, and the rolling pressure is 220-290 t;
the single-pass reduction of the second rolling cold rolling is 15-20%, the rolling tension is 8t-15t, and the rolling pressure is 290t-360t;
the single-pass reduction of the third rolling cold rolling is 7-12%, the rolling tension is 1t-8t, and the rolling pressure is 360t-450t.
9. The process of claim 1, wherein the process comprises the following steps: the first annealing and the second annealing are both micro-oxygen annealing, the oxygen content in the first annealing and the second annealing is 3% -6%, the annealing temperature is 1000-1200 ℃, the annealing cooling section temperature is 300-450 ℃, and acid washing is carried out after the annealing is finished to remove surface oxidation.
10. The process of claim 1, wherein the process comprises the following steps: the annealing temperature in the third annealing is set to 1050-1150 ℃, the hydrogen concentration is not lower than 99.99%, and the annealing tension is 1-8 t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211461415.XA CN115672980A (en) | 2022-11-16 | 2022-11-16 | Preparation process of stainless steel ultra-thin strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211461415.XA CN115672980A (en) | 2022-11-16 | 2022-11-16 | Preparation process of stainless steel ultra-thin strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115672980A true CN115672980A (en) | 2023-02-03 |
Family
ID=85054825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211461415.XA Pending CN115672980A (en) | 2022-11-16 | 2022-11-16 | Preparation process of stainless steel ultra-thin strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115672980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197240A (en) * | 2023-02-24 | 2023-06-02 | 浙江豪环新材料有限公司 | Processing technology and rolling mill for high-performance steel |
-
2022
- 2022-11-16 CN CN202211461415.XA patent/CN115672980A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197240A (en) * | 2023-02-24 | 2023-06-02 | 浙江豪环新材料有限公司 | Processing technology and rolling mill for high-performance steel |
| CN116197240B (en) * | 2023-02-24 | 2023-08-15 | 浙江豪环新材料有限公司 | Processing technology and rolling mill for high-performance steel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109332377B (en) | Production process of 301 precision strip steel for cylinder gasket | |
| CN112275804B (en) | Control method for surface color difference of precise stainless steel strip | |
| CN115672980A (en) | Preparation process of stainless steel ultra-thin strip | |
| CN110788138B (en) | Cold rolling production method of ultrathin stainless steel strip | |
| CN115318830A (en) | Method for producing high magnetic induction oriented electrical steel by cold continuous rolling and product | |
| CN111112332A (en) | Processing technology of rolled copper foil blank | |
| CN110328234A (en) | The manufacturing method of raw material for strip in razor-thin rolling and its raw material of manufacture | |
| CN114210730B (en) | Production method for improving rolling efficiency of stainless steel precision strip steel | |
| CN113145642B (en) | Pickling plate and preparation method thereof | |
| CN112974523B (en) | Production method of 309S ultrathin precise stainless strip steel for sealing gasket | |
| CN115415313A (en) | High-tensile-strength corrosion-resistant titanium flat wire and production process thereof | |
| CN103272841A (en) | Cold rolling technology of stainless steel clad plate strip coil | |
| KR101356877B1 (en) | Continuous manufacturing device of ferritic stainless steel and Continuous manufacturing method of using the same | |
| CN116441312B (en) | Production process of cold-rolled hard stainless steel strip | |
| CN111974800A (en) | Production method of stainless steel band with bright RA surface | |
| JP2001286927A (en) | Method of manufacturing hot-rolled steel plate | |
| JP4309834B2 (en) | Temper rolling method | |
| CN114055082B (en) | Production method of high-grade special steel precision steel strip for crochet hook | |
| CN112077143B (en) | Continuous plate production line for hot-rolled coiled plates | |
| CN114309116B (en) | Preparation method of wide ultrathin titanium foil strip | |
| CN115821178B (en) | Ultra-soft copper strip for welding and production process thereof | |
| JPS5910403A (en) | Cold tandem rolling device | |
| CN117655100A (en) | Method for improving upwarp and downwarp of cold-rolled stainless steel strip head | |
| CN116689491A (en) | Cold rolling production method of ferrite stainless steel TES18 for elevator decoration panel | |
| CN113894163A (en) | Cold rolling process of wide ultrathin stainless steel band |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |