CN109308378A - A method of simulation cold-strip steel lotion mottling forming process - Google Patents
A method of simulation cold-strip steel lotion mottling forming process Download PDFInfo
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- CN109308378A CN109308378A CN201810962117.6A CN201810962117A CN109308378A CN 109308378 A CN109308378 A CN 109308378A CN 201810962117 A CN201810962117 A CN 201810962117A CN 109308378 A CN109308378 A CN 109308378A
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- strip steel
- mottling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Abstract
The present invention provides a kind of methods for simulating cold-strip steel lotion mottling forming process, comprising the following steps: (1) it is strong to calculate cold-strip steel curling back plate face pressure；(2) strong with pressure simulator simulation cold-strip steel curling back plate face pressure, pressure simulator includes clamping plate, pressure transducer and torque wrench；(3) with plate face local environment after the simulation cold-strip steel curling of controllable temperature high steam kettle；(4) elemental analysis is carried out to cold-strip steel mottling.The method of simulation cold-strip steel lotion mottling forming process of the present invention, it can be used as simulation means guided laboratory and quickly accurately select and adjust rolling mill compound, to reach mottling defect caused by decreasing or even eliminating rolling liquid emulsion, for instructing the rolling mill compound of Rolling Production to select and adjustment.
Description
Technical field
The invention belongs to steel cold rolling fields, more particularly, to a kind of side for simulating cold-strip steel lotion mottling forming process
Method.
Background technique
With the continuous development of rolling technique, improves rolled surface quality and become the topic increasingly paid close attention in industry.Vapour
To in the requirement such as the template of cold rolling of strip steel product, performance and surface quality, surface quality and powder injection molding become the industries such as vehicle, household electrical appliances
It must become more and more important.Therefore, promoting strip cold-rolled products surface quality is particularly important.
Cold-strip Steel Surface mottling is the most serious in belt steel product especially silicon steel plate surface defect and is difficult to pass through work
The difficult point defect that skill solves, mottling defect are excessively easy to cause closing or the degradation of product, bring bad shadow to product qualification rate
It rings, meanwhile, mottling defect also significantly limits the use scope of belt steel product, it is made to cannot be introduced into high-end market, influences to roll
The market image and market orientation of enterprise processed.
Experiment test shows to select suitable rolling mill compound, or improves to rolling mill compound correlated performance, can effectively reduce
Even prevent the generation of strip mottling.In other words, rolling mill compound selection is improper, also result in mottling it is serious, to influence band steel
Amount reduces product qualification rate, even production pauses, extreme influence enterprises production efficiency and economic benefit.
Therefore, develop it is a kind of simulation cold rolling of strip steel and storage and transport process in mottling forming process laboratory method, using as
Simulation means guided laboratory quickly and accurately select and adjust rolling mill compound, with reach decrease or even eliminate roll liquid emulsion lead
The mottling defect of cause has very important practical value and reality for instructing rolling mill compound selection and adjustment in Rolling Production
Meaning.
Summary of the invention
In view of this, the present invention is directed to propose it is a kind of simulate cold-strip steel lotion mottling forming process method, to overcome
The defect of the prior art can be used as simulation means guided laboratory and quickly accurately select and adjust rolling mill compound, subtracted with reaching
It even is eliminated mottling defect caused by rolling liquid emulsion less, for instructing the rolling mill compound of Rolling Production to select and adjustment.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A method of simulation cold-strip steel lotion mottling forming process, comprising the following steps:
S1: it calculates cold-strip steel and crimps the strong P of back plate face pressure；
S2: plate face print after taking cold-strip steel to crimp coats cold-strip steel lotion, and simulates cold rolling using pressure simulator
It is strong that strip crimps back plate face pressure；
S3: by the cold-strip steel being under step S2 pressure atmosphere curling after plate face print be placed in can temperature, oxygen content and
In the adjustable container of steam content, plate face local environment after simulation cold-strip steel curling；
S4: plate face print after the cold-strip steel curling after step S3 simulation process is taken out, to cold-strip steel lotion spot
Mark carries out elemental analysis, and compares measurement with the taken cold-strip steel mottling in scene, sees whether that there are correlations, if it exists
Correlation then illustrates that the analogy method analog reappears technique scene.
Preferably, in step S1, cold-strip steel crimps the strong P calculation formula of back plate face pressure are as follows:
In formula, P- plate face pressure, Mpa；
T- cold-strip steel curl tension, N；
B- cold-strip steel width, mm；
D- coil of strip diameter, mm.
Preferably, in step S2, pressure simulator includes the two pieces of clamping plates being parallel to each other connected with fastener, Yi Jifen
The pressure transducer and torque wrench not being independently arranged.
Preferably, clamping plate is corrosion-resistant plate, with a thickness of 10-20mm；Fastener is screw.
Preferably, step S2 the following steps are included:
(1) cold-strip steel print is cut to the size for being slightly less than clamping plate, plate face is cleaned with organic solvent, is dried
It is spare；
(2) pressure transducer is placed among two clamping plates, fastening pressurization is carried out with torque wrench, when pressure transducer is aobvious
When registration value is P, stop pressurization, records torque wrench torque value β at this time；
(3) two clamping plates are unscrewed, pressure transducer is removed, cold-strip steel print stacks after taking two panels to clean, intermediate uniform
Cold-strip steel lotion is smeared, two clamping plates are put into, is fastened and is pressurizeed with torque wrench, when torque wrench shows that numerical value is β, is stopped
Pressurization, pressure suffered by cold-strip steel print is P at this time.
Preferably, the cold-strip steel lotion in step S2 is the on-line machining liquid of live cold rolling.
Preferably, in step S3, the adjustable container of temperature, oxygen content and steam content is the high steam of controllable temperature
Kettle；In step S3, plate face local environment is high temperature, anoxic, water vapor atmosphere after cold-strip steel curling.
Preferably, step S3 the following steps are included:
1) two clamping plates for accompanying cold-strip steel print are placed in controllable temperature high steam kettle；
2) actual temperature is identical when setting controllable temperature high steam kettle temperature degree is crimped with cold-strip steel, and heating is after a certain period of time
Stop；
3) after pressure is down to normal pressure, temperature is down to room temperature in controllable temperature high steam kettle, taking-up accompanies cold-strip steel sample
The two clamping plates of piece.
Preferably, plate face local environment temperature is 105-180 DEG C after cold-strip steel curling.
Preferably, in step S4, the method for carrying out elemental analysis to cold-strip steel lotion mottling is SEM-ED or XPS.
Preferably, in step S4, the method for carrying out elemental analysis to cold-strip steel lotion mottling is SEM-ED.
Compared with the existing technology, a kind of method for simulating cold-strip steel lotion mottling forming process of the present invention has
Following advantage:
(1) a kind of method for simulating cold-strip steel lotion mottling forming process of the present invention, can be accurate in laboratory
And the forming process of cold-strip steel lotion mottling is rapidly simulated, it is high with the rolling field condition degree of correlation, as a result reliably.
(2) a kind of method for simulating cold-strip steel lotion mottling forming process of the present invention, it is simple and easy, it is required to set
Standby condition is easy to accomplish, and operability and repeatability are strong, can be used for selection and adjustment cold rolling liquid in the case where not influencing production,
Achieve the purpose that reduce and even prevents Cold-strip Steel Surface lotion mottling, improves Cold-strip Steel Surface quality.
Detailed description of the invention
Fig. 1 is the clamping plate of pressure simulator and fastening in the method for present invention simulation cold-strip steel lotion mottling forming process
The simple perspective view of part part；
Fig. 2 is the embodiment of the method 1 and 1 lotion mottling of comparative example of present invention simulation cold-strip steel lotion mottling forming process
Defect Comparison figure.
Description of symbols:
1- clamping plate；2- fastener.
Specific embodiment
In addition to being defined, technical term used in following embodiment has universal with those skilled in the art of the invention
The identical meanings of understanding.Test reagent used in following embodiment is unless otherwise specified conventional biochemical reagent；It is described
Experimental method is unless otherwise specified conventional method.
A method of simulation cold-strip steel lotion mottling forming process, comprising the following steps:
S1: it calculates cold-strip steel and crimps the strong P of back plate face pressure, calculation method can be according to following equation
In formula, P- plate face pressure, Mpa；
T- cold-strip steel curl tension, N；
B- cold-strip steel width, mm；
D- coil of strip diameter, mm.
S2: plate face print after taking cold-strip steel to crimp coats cold-strip steel lotion, and simulates cold rolling using pressure simulator
It is strong that strip crimps back plate face pressure.
Pressure simulator in the step can be any pressure suffered by plate face print after can simulating cold-strip steel curling,
And plate face print has the device exchanged with external air flow after guaranteeing cold-strip steel curling.In this regard, the present invention devises a kind of pressure
Simulator, which includes the two pieces of clamping plates 1 (as shown in Figure 1) being parallel to each other connected with fastener 2, and is independently set
The pressure transducer (not drawn in figure) and torque wrench (not drawn in figure) set.It should be noted that two clamping plates shape
Shape, thickness, material, size etc. are identical, and the shape in the face that two clamping plates are parallel to the horizontal plane need to be square, positive triangle
The centrosymmetric images such as shape, circle, and fastener then needs to guarantee on the same circumference using clamping plate central point as the center of circle, and each tight
Firmware is uniformly distributed.Specific in the present embodiment, as shown in Figure 1, the shape in the face that two clamping plates 1 are parallel to the horizontal plane is positive
Rectangular, fastener 2 has 4, is respectively provided on four angles of square, and fastener 2 uses screw, specifically uses four
Screw is fastened and is unscrewed from four angles to two clamping plates 2.Pressure transducer can use the C10 type sensor of HBM；Torque
Spanner can use ADEMA electronics high-precision torque spanner WS type.It needs the pressure transducer being placed on two clamping plates when in use
Between geometric center position；When carrying out fastening pressurization to two clamping plates by screw with torque spanner, in order to guarantee detection pressure
The accuracy of strong data guarantees that four screws are adjusted with torque spanner simultaneously, preferably to carry out fastening pressurization to two clamping plates.
Simultaneously in order to prevent in pressure simulation process, the corrosion of cold-strip steel lotion and simulated environment to clamping plate, this hair
Bright clamping plate 1 uses corrosion resistant plate, such as polyfluortetraethylene plate；1 thickness of middle clamp plate of the present invention is changeable, but in order to whole
A pressure simulator loss of weight, generally clamping plate 1 is arranged relatively thin, and thickness is in 10-20mm.
Therefore, the specific method of step S2 of the present invention may comprise steps of:
(1) cold-strip steel print is cut to the size for being slightly less than clamping plate, with low boiling point organic solvents such as ethyl alcohol, petroleum ethers
Plate face is cleaned, is dried for standby；
(2) pressure transducer is placed among two clamping plates 1, fastening pressurization is carried out with torque wrench, works as pressure transducer
When showing that numerical value is P, stop pressurization, records torque wrench torque value β at this time；
(3) two clamping plates 1 are unscrewed, pressure transducer is removed, cold-strip steel print stacks after taking two panels to clean, intermediate uniform
Cold-strip steel lotion is smeared, two clamping plates 1 are put into, is fastened and is pressurizeed with torque wrench, when torque wrench shows that numerical value is β, is stopped
It only pressurizes, pressure suffered by cold-strip steel print is p at this time.
Cold-strip steel lotion is the on-line machining liquid of live cold rolling in the above-mentioned step, and on-line machining liquid is also referred to as online liquid,
The scene as taken from cold rolling mill is online with rolling liquid emulsion.
S3: plate face print after the cold-strip steel being under step S2 pressure atmosphere curling is placed in temperature, oxygen content and steaming
In the adjustable container of vapour content, high temperature, anoxic, water vapor atmosphere locating for plate face after simulation cold-strip steel curling.
In the step, the adjustable container of temperature, oxygen content and steam content can be it is any in the prior art can be real
Show the container of above-mentioned function, the high steam kettle of controllable temperature is selected in the present invention.Why the present invention emphasizes high temperature, anoxic, water
Steam ambient is because in actual production process, there are huge pressure when Cold Rolling terminates curling, and cold-strip steel
Surface temperature is higher (105 DEG C or more), and maximum temperature up to 180 DEG C, dripped by rolling outlet by lotion, therefore cold-strip steel after crimping
Surface be in high pressure, high temperature, anoxic, vapor environment in.
In the case where specifying simulated environment, step 3 of the present invention in fact can operate according to the following steps:
1) two clamping plates 1 for accompanying cold-strip steel print are placed in controllable temperature high steam kettle；
2) actual temperature is identical when setting controllable temperature high steam kettle temperature degree is crimped with cold-strip steel, and heating is after a certain period of time
Stop；
3) after pressure is down to normal pressure, temperature is down to room temperature in controllable temperature high steam kettle, taking-up accompanies cold-strip steel sample
The two clamping plates 1 of piece.
S4: plate face print after the cold-strip steel curling after step S3 simulation process is taken out, to cold-strip steel lotion spot
Mark carries out elemental analysis, and compares measurement with the taken cold-strip steel mottling in scene, sees whether that there are correlations, if it exists
Correlation then illustrates that the analogy method analog reappears technique scene.In the step, element is carried out to cold-strip steel lotion mottling
Analysis includes the analysis to element species and its content, the present invention in can using SEM-ED (namely scanning electron microscope and
Energy dispersion X ray spectrum) or XPS (namely X-ray electron spectrum) tested and analyzed, can preferentially be selected in actual mechanical process
SEM-ED。
It is next combined with specific embodiments below that the present invention will be described in detail.
Comparative example 1
Certain steel mill carries out the Rolling Production of silicon plate using 6 roll reversing roller of single chassis, point 5 passes, and product is
Non-orientation silicon steel, there are serious Cold-strip Steel Surface mottling defects at scene, lead to closing and the degradation of product.Changed by technique
Into and experimental analysis, it may be determined that mottling defect be cold rolling fat liquor entrainment cause.
Embodiment 1
The case where for comparative example 1, the shape of the analogy method simulation cold-strip steel lotion mottling now described through the invention
It reduces so that cold rolling liquid is selected and adjusted in the case where not influencing production at process and even prevents Cold-strip Steel Surface lotion
The generation of mottling improves cold-rolled steel strip products surface quality.
There are huge pressure when Cold Rolling terminates to crimp, it is computed up to 0.19 megapascal, and cold-strip steel table
Face temperature is higher, maximum temperature up to 150 DEG C, lotion by rolling outlet drippage, therefore after crimping Cold-strip Steel Surface be in high pressure,
High temperature, anoxic, vapor environment in.
The present invention is as follows to the simulation process of above-mentioned operating condition:
1, Cold-strip Steel Surface pressure is calculated according to formula P=2T/bD.Formula T is cold-strip steel tension, and milling train is shown as
60000N；B is cold-strip steel width, 1250mm；D is cold-strip steel crimp diameter, 510mm；Calculate to obtain Cold-strip Steel Surface pressure
It is by force 0.19 megapascal；
2, pressure transducer is clamped with the two clamping plates of pressure simulator as shown in Figure 1, screw is passed through with torque spanner
Fastening pressurization is carried out to it, when pressure transducer shows that numerical value is 0.19 megapascal, stops pressurization, torque spanner reads β at this time
=150Nm；In the above process, pressure transducer uses the C10 type sensor of HBM, is needed when in use by the pressure transducer
It is placed on the geometric center position between two clamping plates；Torque wrench uses ADEMA electronics high-precision torque spanner WS type, with torsion
When spanner carries out fastening pressurization to two clamping plates by screw, in order to guarantee to detect the accuracy of pressure data, preferably guarantee four
A screw is adjusted with torque spanner simultaneously, to carry out fastening pressurization to two clamping plates.
3, two clamping plates are unscrewed, pressure transducer is removed, cold-strip steel print stacks after taking two panels to clean, intermediate uniformly to apply
Smear the online liquid of live cold rolling, be put between two clamping plates, with torque wrench fasten pressurize, when torque wrench show numerical value β=
When 150Nm, stop pressurization, pressure suffered by cold-strip steel print is 0.19 megapascal at this time.
4, the two clamping plates for accompanying cold-strip steel print are placed in controllable temperature high steam kettle, set temperature γ=
150 DEG C, heating time 1h；
5, heating stops, and after pressure is down to normal pressure, temperature is down to room temperature in controllable temperature high steam kettle D, takes out cold rolling
Strip print, whether observation mottling and live cold-strip steel mottling (namely comparative example 1) are identical, according to fig. 2 as can be seen that this reality
Apply in the mottling and actual production of example the visual state consistency of live cold-strip steel mottling defect, be among mottling to edge according to
Secondary presentation blue, black, dark-brown, light brown mottling presentation；Therefore SEM- then is carried out to the regions of different colours of mottling defect
EDS elemental analysis.
1 comparative example 1 of table and 1 mottling defect regions of different colours element species of embodiment and content
Remarks: all " % " all representation quality percentage in table 1.
It can be seen that embodiment 1 and 1 element species of comparative example are unchanged compared to basic material, and in addition to O element, other
Constituent content is not much different.Oxygen element content in table 1 is individually selected out and forms table 2, in figure 5 it can be seen that for embodiment 1 and comparison
The changing rule of example 1, different colours mottling region oxygen element content is identical.
2 comparative example 1 of table and 1 mottling defect regions of different colours oxygen element content of embodiment
Remarks: all " % " all representation quality percentage in table 1.
In conclusion the present invention can accurately simulate the forming process and rule of cold-strip steel lotion mottling, it can be in not shadow
The selection and adjustment of cold rolling liquid are instructed in the case where ringing production, are lacked with reaching to reduce or even prevent Cold-strip Steel Surface lotion mottling
Fall into, improve the purpose of cold-rolled steel strip products surface quality.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method for simulating cold-strip steel lotion mottling forming process, it is characterised in that: the following steps are included:
S1: it calculates cold-strip steel and crimps the strong P of back plate face pressure；
S2: plate face print after taking cold-strip steel to crimp coats cold-strip steel lotion, and simulates cold-strip steel using pressure simulator
It is strong to crimp back plate face pressure；
S3: plate face print after the cold-strip steel being under step S2 pressure atmosphere curling is placed in temperature, oxygen content and steam and is contained
It measures in adjustable container, plate face local environment after simulation cold-strip steel curling；
S4: by after step S3 simulation process cold-strip steel curling after plate face print take out, to cold-strip steel lotion mottling into
Row element analysis, and measurement is compared with the taken cold-strip steel mottling in scene, see whether that there are correlations, it is related if it exists
Property, then illustrate that the analogy method analog reappears technique scene.
2. the method for simulation cold-strip steel lotion mottling forming process according to claim 1, it is characterised in that: step S1
In, cold-strip steel crimps the strong P calculation formula of back plate face pressure are as follows:
In formula, P- plate face pressure, Mpa；
T- cold-strip steel curl tension, N；
B- cold-strip steel width, mm；
D- coil of strip diameter, mm.
3. the method for simulation cold-strip steel lotion mottling forming process according to claim 1, it is characterised in that: step S2
In, pressure simulator includes the two pieces of clamping plates being parallel to each other connected with fastener, and the pressure sensing being independently arranged
Device and torque wrench.
4. the method for simulation cold-strip steel lotion mottling forming process according to claim 3, it is characterised in that: clamping plate is
Corrosion-resistant plate, with a thickness of 10-20mm；Fastener is screw.
5. the method for simulation cold-strip steel lotion mottling forming process according to claim 3 or 4, it is characterised in that: step
Rapid S2 the following steps are included:
(1) cold-strip steel print is cut to the size for being slightly less than clamping plate, plate face is cleaned with organic solvent, is dried standby
With；
(2) pressure transducer is placed among two clamping plates, fastening pressurization is carried out with torque wrench, when pressure transducer shows number
When value is P, stop pressurization, records torque wrench torque value β at this time；
(3) two clamping plates are unscrewed, pressure transducer is removed, cold-strip steel print stacks after taking two panels to clean, intermediate uniformly to smear
Cold-strip steel lotion, is put into two clamping plates, is pressurizeed with torque wrench fastening, when torque wrench shows that numerical value is β, stops adding
Pressure, pressure suffered by cold-strip steel print is P at this time.
6. the method for simulation cold-strip steel lotion mottling forming process according to claim 1, it is characterised in that: step S2
In cold-strip steel lotion be live cold rolling on-line machining liquid.
7. the method for simulation cold-strip steel lotion mottling forming process according to claim 1, it is characterised in that: step S3
In, the adjustable container of temperature, oxygen content and steam content is the high steam kettle of controllable temperature；In step S3, cold-strip steel
Plate face local environment is high temperature, anoxic, water vapor atmosphere after curling.
8. the method for simulation cold-strip steel lotion mottling forming process according to claim 7, it is characterised in that: step S3
The following steps are included:
1) two clamping plates for accompanying cold-strip steel print are placed in controllable temperature high steam kettle；
2) actual temperature is identical when setting controllable temperature high steam kettle temperature degree is crimped with cold-strip steel, and heating stops after a certain period of time
Only；
3) after pressure is down to normal pressure, temperature is down to room temperature in controllable temperature high steam kettle, taking-up accompanies cold-strip steel print
Two clamping plates.
9. the method for simulation cold-strip steel lotion mottling forming process according to claim 7, it is characterised in that: cold-rolled strip
Plate face local environment temperature is 105-180 DEG C after coil of strip is bent.
10. the method for simulation cold-strip steel lotion mottling forming process according to claim 1, it is characterised in that: step
In S4, the method for carrying out elemental analysis to cold-strip steel lotion mottling is SEM-ED or XPS；Preferably, in step S4, to cold rolling
The method that strip lotion mottling carries out elemental analysis is SEM-ED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962117.6A CN109308378B (en) | 2018-08-22 | 2018-08-22 | Method for simulating formation process of emulsion spots of cold-rolled strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962117.6A CN109308378B (en) | 2018-08-22 | 2018-08-22 | Method for simulating formation process of emulsion spots of cold-rolled strip steel |
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| CN109308378A true CN109308378A (en) | 2019-02-05 |
| CN109308378B CN109308378B (en) | 2021-09-14 |
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| CN201810962117.6A Active CN109308378B (en) | 2018-08-22 | 2018-08-22 | Method for simulating formation process of emulsion spots of cold-rolled strip steel |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975284A (en) * | 2015-06-30 | 2015-10-14 | 安徽飞达新材料科技股份有限公司 | Surface treatment process for cold-rolled stainless steel strip |
| CN105389439A (en) * | 2015-12-03 | 2016-03-09 | 四川大学 | Natural gas well shut-in wellbore modeling simulation implementation method |
| US20160186298A1 (en) * | 2013-07-30 | 2016-06-30 | Salzgitter Flachstahl Gmbh | Micro-alloyed high-strength multi-phase steel containing silicon and having a minimum tensile strength of 750 mpa and improved properties and method for producing a strip from said steel |
| CN106702117A (en) * | 2016-12-16 | 2017-05-24 | 安徽宝恒新材料科技有限公司 | Machining method for high-strength and high-abrasion-resistance stainless steel cold-rolled sheet |
-
2018
- 2018-08-22 CN CN201810962117.6A patent/CN109308378B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160186298A1 (en) * | 2013-07-30 | 2016-06-30 | Salzgitter Flachstahl Gmbh | Micro-alloyed high-strength multi-phase steel containing silicon and having a minimum tensile strength of 750 mpa and improved properties and method for producing a strip from said steel |
| CN104975284A (en) * | 2015-06-30 | 2015-10-14 | 安徽飞达新材料科技股份有限公司 | Surface treatment process for cold-rolled stainless steel strip |
| CN105389439A (en) * | 2015-12-03 | 2016-03-09 | 四川大学 | Natural gas well shut-in wellbore modeling simulation implementation method |
| CN106702117A (en) * | 2016-12-16 | 2017-05-24 | 安徽宝恒新材料科技有限公司 | Machining method for high-strength and high-abrasion-resistance stainless steel cold-rolled sheet |
Non-Patent Citations (2)
| Title |
|---|
| 圣洁等: "基于CFD方法的冷轧过程乳化液特性研究", 《润滑与密封》 * |
| 李丽娟: "目标激光散射特性在钢板表面微观轮廓精度测量中的应用研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
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