CN108559828A - A kind of technological process of flat cold-rolled sheet production line - Google Patents
A kind of technological process of flat cold-rolled sheet production line Download PDFInfo
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- CN108559828A CN108559828A CN201810375048.9A CN201810375048A CN108559828A CN 108559828 A CN108559828 A CN 108559828A CN 201810375048 A CN201810375048 A CN 201810375048A CN 108559828 A CN108559828 A CN 108559828A
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- rolled sheet
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
-
- 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
- B21B2001/221—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 cold-rolling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Metal Rolling (AREA)
Abstract
The present invention relates to flat cold-rolled sheet technical fields, specifically refer to a kind of technological process of flat cold-rolled sheet production line, including alkali cleaning, cleaning, the technique for big slitting, pickling, rolling, opening flat, small slitting, straightening and quenching, by adjusting, optimization and improve flat cold-rolled sheet preparation process, the present invention makes a kind of surface of low expansion superalloy flat cold-rolled sheet, size, performance meet standard and user's requirement, produce a kind of qualified low expansion superalloy cold rolled sheet product, product quality is improved, more economic benefits are created for enterprise.Compared with prior art, the present invention has outstanding low expansion and mechanical property.
Description
Technical field
The present invention relates to flat cold-rolled sheet technical field, in particular to a kind of technological processes of flat cold-rolled sheet production line.
Background technology
The development relationship of steel and iron industry the economic level of a national overall national strength and country's entirety, is national economy
One of basic industry in construction.Steel material is in the industries such as national defense industry, mechanical industry, building, automobile, shipbuilding and household electrical appliances
There is important application, is raw material indispensable in national manufacturing industry.In recent years, China has upgraded its industrial structure, is
The development of steel industry provides the space for continuing development, and the development of the national economy needs more and more high-quality steel products.
Cold-reduced sheet is the abbreviation of common carbon structural steel cold-reduced sheet, also referred to as cold-reduced sheet, is commonly called as cold plate, is missed sometimes
Write as cold rolled plate.Cold plate is that the steel that thickness is less than 4mm is made by further cold rolling by common carbon structural steel hot rolled strip
Plate.Due to rolling at normal temperatures, iron scale is not generated, therefore, cold plate surface quality is good, and dimensional accuracy is high, anneals in addition
Processing, mechanical performance and processing performance are better than hot rolled steel sheet, in many fields, especially household electrical appliances manufacturing field,
Gradually replace hot rolled steel sheet with it.
Now when producing flat cold-rolled sheet, because the production technology of flat cold-rolled sheet is more complicated, process is more, control
In the case of not in place, quality is highly susceptible to influence, and tradition leads to subsequent the less cleaning position on flat cold-rolled sheet surface
Processing is all bad.
Invention content
The technical problem to be solved by the present invention is to provide a kind of technological process of flat cold-rolled sheet production line.
In order to solve the above technical problems, technical solution provided by the invention is a kind of technique stream of flat cold-rolled sheet production line
Journey：(1) for raw material through carrying out alkali cleaning before excessive slitting, the liquid of alkali cleaning is antioxidant 10-25%, metal deactivator 10-
20%, polymerization inhibitor 15-20%, dispersant 10-20%, remaining is solvent, to raw material when alkaline bath cleans, in alkali
Process section speed control is washed in >=100m/min, temperature is controlled at 30~40 DEG C, due to be added to dispersant can effectively by
The polymer of the bulk generated is dispersed into small polymer, to which dispersing and dissolving is discharged in spent lye；(2) alkali cleaning is completed
Later, it needs to clean raw material with a large amount of water, the alkali cleaning remained on raw material is cleaned up, ensure raw material
The cleaning on surface；(3) raw material are carried out slitting, are split to be formed to raw material using banding machine after the complete size of constant
Thin plate；(4) thin plate for forming segmentation later carries out pickling, sour a concentration of 180~220g/L of tank total acid, to thin plate descaling bath
When cleaning with potcher, in acid cleaning process section speed control in >=120m/min, the control of potcher temperature 55~
65 DEG C, method ensure that the quality of production of thin plate, realizes acid-cleaning plate surface quality and greatly improves, and improve the surface etc. of thin plate
Grade, greatly improves thin sheet surface quality；(5) when being rolled, planetary rolling upper mold roll and plug are checked
Surface quality ensures that installation is correct, fastens, and adjustment rolling head drift angle is 8.6~8.9 °；Open the auxiliary system thin oil of planetary rolling
It stands and geared parts is lubricated, open hydraulic power unit and prepare operation hydraulic system；Start main motor, first makes host deep bid at a slow speed
It can rotate, restart auxiliary motor and gradually rise to 800~1000r/min, then main motor raises speed to 800~1000r/min, it is empty
Machine operates 8~10min；10~15min is filled into planetary rolling cover, in induction heater, directed cavity before planet mill milling
Entering nitrogen as protection gas, nitrogen flow is 100~200L/min, and 99.99% or more nitrogen gas purity, (6) are capable to be rolled into later,
Flat technique is carried out out, uncoiling, longitudinal sectional side, heat treatment, aligning, crosscutting scale, essence are rectified, examined, finally collect, bundling, feature
It is, is quickly heated using modes such as electric induction or gas flames and be used as heat treatment, surface of steel plate is made immediately to be warming up to 300
~700 DEG C, subsequently into aligning, opening in this case flat can greatly reduce plank residual stress.(7) after opening flat technique,
Small slitting is carried out, banding machine is used when small slitting.(8) after small slitting, straightening is carried out, drawing is used when straightening
The machine of rectifying；(9) after straightening, quenching technical is carried out, Quench heating in flat cold-rolled sheet glowing furnace, 750-780 DEG C of hardening heat is simultaneously protected
Warm 60-80min is cooled to 680-700 DEG C and keeps the temperature and comes out of the stove after 80-120min air-cooled, and flat cold-rolled sheet carries out after being once tempered
It is cooled to room temperature, cooling 150-180min in the cold treatment equipment that temperature is -40 to -30 DEG C is placed into and carries out cold treatment,
Double tempering is carried out after cold treatment again, the temperature of double tempering is 750-780 DEG C, comes out of the stove after heat preservation 80-120min and is air-cooled to room
Temperature.(10) after quenching technical is completed, cold rolled sheet product outbound.
As an improvement, when carrying out slitting, first time slitting uses 1600 type slitting units, first time slitting
1300 types are used to open flat unit.
As an improvement, when being rolled, the 650 type reversable mills that use.
As an improvement, when opening flat technique, flat unit is opened using 1300 types.
As an improvement, when carrying out straightening, using 650 type withdrawal straightening stands.
As an improvement, further including 80KAV transformers and high and low voltage electric distribution screen, convenient for being monitored to entire technological process.
After using the above structure, the invention has the advantages that：By adjusting, optimization and improve flat cold-rolled sheet prepare work
Skill, the present invention make a kind of surface of low expansion superalloy flat cold-rolled sheet, size, performance meet standard and user's requirement,
A kind of qualified low expansion superalloy cold rolled sheet product is produced, product quality is improved, is created for enterprise more economical
Benefit.Compared with prior art, the present invention has outstanding low expansion and mechanical property.
Specific implementation mode
The present invention is described in further detail below.
The operation principle of the present invention：(1) for raw material through carrying out alkali cleaning before excessive slitting, the liquid of alkali cleaning is antioxidant
10-25%, metal deactivator 10-20%, polymerization inhibitor 15-20%, dispersant 10-20%, remaining is solvent, is existed to raw material
When alkaline bath cleans, in alkali washing process section speed control in >=100m/min, temperature is controlled at 30~40 DEG C, due to adding
Add dispersant that the polymer of the bulk generated can be effectively dispersed into small polymer, to which dispersing and dissolving is useless
It is discharged in lye；(2) it after alkali cleaning is completed, needs to clean raw material with a large amount of water, will remain on raw material
Alkali cleaning cleans up, and ensures the cleaning on raw material surface；(3) raw material carry out slitting, use slitting after the complete size of constant
Machine is split raw material to form thin plate；(4) thin plate for forming segmentation later carries out pickling, sour tank total acid a concentration of 180
~220g/L, when being cleaned to thin plate descaling bath and potcher, in acid cleaning process section speed control in >=120m/
Min, potcher temperature are controlled at 55~65 DEG C, and method ensure that the quality of production of thin plate, realize acid-cleaning plate surface quality substantially
It improves, improves the surface grade of thin plate, greatly improve thin sheet surface quality；(5) when being rolled, row is checked
Star milling train upper mold roll ensures that installation is correct, fastens with mandrel surface quality, and adjustment rolling head drift angle is 8.6~8.9 °；It opens
The auxiliary system Lubricating-oil Station of planetary rolling is lubricated geared parts, opens hydraulic power unit and prepares operation hydraulic system；Start
Main motor first enables at a slow speed host deep bid rotate, restarts auxiliary motor and gradually rise to 800~1000r/min, then by main motor
It raises speed to 800~1000r/min, empty machine operates 8~10min；10~15min is to planetary rolling cover before planet mill milling
Nitrogen is filled in interior, induction heater, directed cavity as protection gas, nitrogen flow is 100~200L/min, nitrogen gas purity
99.99% or more, (6) row is rolled into later, carries out out flat technique, uncoiling, longitudinal sectional side, heat treatment, aligning, crosscutting scale, essence
It rectifys, examine, finally collect, bundling, which is characterized in that quickly heated as heat treatment using modes such as electric induction or gas flames
Means make surface of steel plate immediately be warming up to 300~700 DEG C, and subsequently into aligning, opening in this case flat can greatly reduce plate
Material residual stress.(7) after opening flat technique, small slitting is carried out, banding machine is used when small slitting.(8) after small slitting,
Straightening is carried out, withdrawal straightening machine is used when straightening；(9) after straightening, quenching technical is carried out, is quenched in flat cold-rolled sheet glowing furnace
Heating, 750-780 DEG C of hardening heat simultaneously keeps the temperature 60-80min, is cooled to 680-700 DEG C and keeps the temperature sky of coming out of the stove after 80-120min
Cold, flat cold-rolled sheet carries out being cooled to room temperature after being once tempered, and places into the cold treatment equipment that temperature is -40 to -30 DEG C
Cooling 150-180min carries out cold treatment, carries out double tempering after cold treatment again, the temperature of double tempering is 750-780 DEG C, is protected
It comes out of the stove after warm 80-120min and is air-cooled to room temperature.(10) after quenching technical is completed, cold rolled sheet product outbound.
When carrying out slitting, first time slitting uses 1600 type slitting units, first time slitting to use
1300 types open flat unit.
When being rolled, the 650 type reversable mills that use.
When opening flat technique, flat unit is opened using 1300 types.
When carrying out straightening, using 650 type withdrawal straightening stands.
Further include 80KAV transformers and high and low voltage electric distribution screen, convenient for being monitored to entire technological process.
By adjusting, optimization and flat cold-rolled sheet preparation process is improved, the present invention keeps a kind of low expansion superalloy cold rolling thin
The surface of plate, size, performance meet standard and user's requirement, and it is thin to produce a kind of qualified low expansion superalloy cold rolling
Panel products improve product quality, and more economic benefits are created for enterprise.Compared with prior art, the present invention has outstanding
Low expansion and mechanical property.
The present invention and its embodiments have been described above, this description is not restricted.All in all if originally
The those of ordinary skill in field is enlightened by it, without departing from the spirit of the invention, is not inventively designed
Frame mode similar with the technical solution and embodiment, are within the scope of protection of the invention.
Claims (6)
1. a kind of technological process of flat cold-rolled sheet production line, it is characterised in that：(1) raw material before excessive slitting through carrying out alkali
It washes, the liquid of alkali cleaning is antioxidant 10-25%, metal deactivator 10-20%, polymerization inhibitor 15-20%, dispersant 10-20%,
It is remaining be solvent, to raw material when alkaline bath cleans, in alkali washing process section speed control in >=100m/min, temperature control
It makes at 30~40 DEG C, can the polymer of the bulk generated be effectively dispersed into small gather due to being added to dispersant
Object is closed, to which dispersing and dissolving is discharged in spent lye；(2) it after alkali cleaning is completed, needs to carry out clearly raw material with a large amount of water
It washes, the alkali cleaning remained on raw material is cleaned up, ensure the cleaning on raw material surface；(3) raw material are through the complete size of constant
Later, slitting is carried out, raw material are split to form thin plate using banding machine；(4) thin plate for forming segmentation later carries out
Pickling, sour a concentration of 180~220g/L of tank total acid, when being cleaned to thin plate descaling bath and potcher, in pickling work
Skill section speed control is controlled in >=120m/min, potcher temperature at 55~65 DEG C, and method ensure that the quality of production of thin plate, is realized
Acid-cleaning plate surface quality greatly improves, and improves the surface grade of thin plate, greatly improves thin sheet surface quality；(5) exist
When rolling, checks that planetary rolling upper mold roll and mandrel surface quality ensure that installation is correct, fastens, adjust rolling head
Drift angle is 8.6~8.9 °；The auxiliary system Lubricating-oil Station for opening planetary rolling is lubricated geared parts, and it is accurate to open hydraulic power unit
Received shipment row hydraulic system；Start main motor, first host deep bid enable to rotate at a slow speed, restart auxiliary motor gradually rise to 800~
Then 1000r/min raises speed main motor to 800~1000r/min, 8~10min of empty machine operating；Before planet mill milling
10~15min be filled with into planetary rolling cover, in induction heater, directed cavity nitrogen as protection gas, nitrogen flow be 100~
200L/min, 99.99% or more nitrogen gas purity, (6) row are rolled into later, carry out out flat technique, uncoiling, longitudinal sectional side, heat treatment,
Aligning, crosscutting scale, essence are rectified, are examined, and are finally collected, bundling, which is characterized in that fast using modes such as electric induction or gas flames
Speed heating is used as heat treatment, so that surface of steel plate is immediately warming up to 300~700 DEG C, subsequently into aligning, in this case
It opens to put down and can greatly reduce plank residual stress.(7) after opening flat technique, small slitting is carried out, slitting is used when small slitting
Machine.(8) after small slitting, straightening is carried out, withdrawal straightening machine is used when straightening；(9) after straightening, quenching technical is carried out, it is cold
Quench heating in thin plate glowing furnace is rolled, 750-780 DEG C of hardening heat simultaneously keeps the temperature 60-80min, be cooled to 680-700 DEG C and protect
Come out of the stove after warm 80-120min air-cooled, flat cold-rolled sheet carry out once be tempered after be cooled to room temperature, place into temperature be -40 to -
Cooling 150-180min carries out cold treatment in 30 DEG C of cold treatment equipment, carries out double tempering after cold treatment again, double tempering
Temperature is 750-780 DEG C, comes out of the stove after heat preservation 80-120min and is air-cooled to room temperature.(10) after quenching technical is completed, flat cold-rolled sheet production
Product outbound.
2. a kind of technological process of flat cold-rolled sheet production line according to claim 1, it is characterised in that：Carrying out slitting
When, first time slitting uses 1600 type slitting units, first time slitting that 1300 types is used to open flat unit.
3. a kind of technological process of flat cold-rolled sheet production line according to claim 1, it is characterised in that：What is rolled
When, the 650 type reversable mills that use.
4. a kind of technological process of flat cold-rolled sheet production line according to claim 1, it is characterised in that：Opening flat technique
When, open flat unit using 1300 types.
5. a kind of technological process of flat cold-rolled sheet production line according to claim 1, it is characterised in that：Carrying out straightening
When, using 650 type withdrawal straightening stands.
6. a kind of technological process of flat cold-rolled sheet production line according to claim 1, it is characterised in that：Further include 80KAV
Transformer and high and low voltage electric distribution screen, convenient for being monitored to entire technological process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375048.9A CN108559828B (en) | 2018-04-24 | 2018-04-24 | Technological process of cold-rolled sheet production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375048.9A CN108559828B (en) | 2018-04-24 | 2018-04-24 | Technological process of cold-rolled sheet production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108559828A true CN108559828A (en) | 2018-09-21 |
| CN108559828B CN108559828B (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810375048.9A Active CN108559828B (en) | 2018-04-24 | 2018-04-24 | Technological process of cold-rolled sheet production line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604333A (en) * | 2018-12-07 | 2019-04-12 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of TC4The processing method of bar |
| CN112725686A (en) * | 2020-11-17 | 2021-04-30 | 邯郸钢铁集团有限责任公司 | Crane jib steel with yield strength of 960MPa and production method thereof |
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| JPS5758904A (en) * | 1980-09-26 | 1982-04-09 | Nippon Steel Corp | Continuous processing apparatus for steel strip |
| CN102310314A (en) * | 2011-07-01 | 2012-01-11 | 云南钛业股份有限公司 | Processing method of titanium and titanium alloy strip coils |
| CN102392186A (en) * | 2011-11-07 | 2012-03-28 | 南京钢铁股份有限公司 | Manufacturing method of HB500 grade low-manganese wear-resistant steel plate |
| CN102676924A (en) * | 2012-06-12 | 2012-09-19 | 钢铁研究总院 | Ultra-fine grained martensite steel plate and preparation method thereof |
| CN103331571A (en) * | 2013-04-02 | 2013-10-02 | 浙江富日进材料科技有限公司 | Fabrication method of steel belt for safety belt |
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2018
- 2018-04-24 CN CN201810375048.9A patent/CN108559828B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758904A (en) * | 1980-09-26 | 1982-04-09 | Nippon Steel Corp | Continuous processing apparatus for steel strip |
| CN102310314A (en) * | 2011-07-01 | 2012-01-11 | 云南钛业股份有限公司 | Processing method of titanium and titanium alloy strip coils |
| CN102392186A (en) * | 2011-11-07 | 2012-03-28 | 南京钢铁股份有限公司 | Manufacturing method of HB500 grade low-manganese wear-resistant steel plate |
| CN102676924A (en) * | 2012-06-12 | 2012-09-19 | 钢铁研究总院 | Ultra-fine grained martensite steel plate and preparation method thereof |
| CN103331571A (en) * | 2013-04-02 | 2013-10-02 | 浙江富日进材料科技有限公司 | Fabrication method of steel belt for safety belt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604333A (en) * | 2018-12-07 | 2019-04-12 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of TC4The processing method of bar |
| CN112725686A (en) * | 2020-11-17 | 2021-04-30 | 邯郸钢铁集团有限责任公司 | Crane jib steel with yield strength of 960MPa and production method thereof |
| CN112725686B (en) * | 2020-11-17 | 2022-06-14 | 邯郸钢铁集团有限责任公司 | Steel with yield strength of 960MPa for crane boom and production method thereof |
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| Publication number | Publication date |
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| CN108559828B (en) | 2020-03-27 |
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