CN109475912A - The milling method of rolling equipment and stainless steel plate - Google Patents
The milling method of rolling equipment and stainless steel plate Download PDFInfo
- Publication number
- CN109475912A CN109475912A CN201780043727.XA CN201780043727A CN109475912A CN 109475912 A CN109475912 A CN 109475912A CN 201780043727 A CN201780043727 A CN 201780043727A CN 109475912 A CN109475912 A CN 109475912A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- surface gloss
- measurement
- roll stacks
- gas
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 33
- 238000003801 milling Methods 0.000 title claims abstract description 31
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 19
- 239000010935 stainless steel Substances 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 62
- 239000010731 rolling oil Substances 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 claims description 69
- 239000007789 gas Substances 0.000 claims description 58
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000004441 surface measurement Methods 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 238000004020 luminiscence type Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000000112 cooling gas Substances 0.000 description 31
- 210000000635 valve cell Anatomy 0.000 description 13
- 230000007547 defect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
Classifications
-
- 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
- B21B1/24—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 in a continuous or semi-continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/007—Control for preventing or reducing vibration, chatter or chatter marks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/14—Roughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The present invention relates to a kind of rolling equipments and a kind of milling method of stainless steel plate.Rolling equipment according to the present invention includes: multiple roll stacks, and roll stacks include at least a pair of roller relative to each other, wherein workpiece is conveyed between the pair of roller relative to each other, and roll stacks are arranged along the conveying direction of workpiece；Multiple ROLLING OIL feeding mechanisms, ROLLING OIL feeding mechanism are contoured to correspond to each roll stacks in roll stacks, for ROLLING OIL to be supplied to roll stacks；Multiple cooling devices, multiple cooling devices are contoured to correspond to each roll stacks in roll stacks, for supplying gas to workpiece and roll stacks；Glossiness measuring device, glossiness measuring device are arranged on workpiece direction of travel between the roll stacks of rear arrangement and the coiler for winding workpiece, to measure the surface gloss of workpiece；And control device, control device are connected to glossiness measuring device and multiple cooling devices, to control the amount for the gas supplied by multiple cooling devices according to the surface gloss measured by glossiness measuring device.
Description
Technical field
This disclosure relates to the method for milling train and rolling stainless steel plate.
Background technique
Continuous rolling passes through the conveying direction setting along workpiece as a kind of workpiece by allowing to become rolling workpiece
Multiple working rolls and workpiece is disposably rolled into target thickness method, and become a kind of and obvious excellent productivity be provided
Milling method.
Compared with the working roll for reversible rolling, the working roll for continuous rolling has relatively large diameter, and
And the viscosity of ROLLING OIL is higher.Further, since the number for the milling train being arranged on entire roll line is limited, therefore per unit
The pressure of rack (stand) is relatively high, this is likely to become the rolling condition suppressed.
Therefore, it when the such as stainless steel of the workpiece with high deformation drag is when under suppressing rolling condition by high-speed rolling, rolls
The temperature of roller occlusion increases, therefore the viscosity of ROLLING OIL reduces.Thus, the greasy property of ROLLING OIL may deteriorate, so as to
The such as hot striped of surface defect can occur.
Hot strip flaw is the defect occurred when surface is damaged due to the surface adhesion between roller and workpiece, and
It is then transferred on workpiece.In addition, hot strip flaw is in high intensity and to suppress under rolling condition such as in rolling stainless steel
The defect often occurred.
Therefore, occur this defect in order to prevent, carry out chill roll using coolant.In this case, cooled in roller
When, the viscosity of the oil film of ROLLING OIL increases, while the surface gloss of workpiece reduces.
In other words, the surface defect of workpiece in order to prevent, it is necessary to keep the suitable viscosity of ROLLING OIL.However, rolling
When the viscosity of liquefaction increases, it is understood that there may be the problem of surface gloss of workpiece reduces.Surface gloss is extremely important wherein
Workpiece such as stainless steel it is rolled in the case where, the above problem may be more sensitive problem.
Summary of the invention
Technical problem
The aspect of the disclosure is to improve quality while inhibiting and defect occur.
The aspect of the disclosure is to execute high-speed rolling with constant-quality, and improve productivity.
Technical solution
According to the aspect of the disclosure, a kind of milling train and a kind of method for rolling stainless steel plate are provided.
Milling train according to the disclosure includes: multiple roll stacks, and roll stacks include at least a pair of roller relative to each other, wherein
Workpiece is plugged between the roller and is conveyed, and roll stacks are arranged along the conveying direction of workpiece；Multiple ROLLING OIL supply dresses
It sets, ROLLING OIL feeding mechanism is contoured to correspond to each roll stacks in roll stacks, for ROLLING OIL to be supplied to roll stacks；
Multiple cooling devices, the multiple cooling device are contoured to correspond to each roll stacks in roll stacks, for supplying gas
It should be to workpiece and roll stacks；Glossiness measuring device, glossiness measuring device are arranged on workpiece moving direction near rear cloth
Between the roll stacks set and the coiler for winding workpiece, to measure the surface gloss of workpiece；And control device, control
Device is connected to glossiness measuring device and the multiple cooling device, according to the surface light measured by glossiness measuring device
Damp degree controls the amount of the gas supplied by the multiple cooling device.
Glossiness measuring device can be set to multiple glossiness measuring devices, the multiple glossiness measuring device setting
Be located at workpiece conveying direction on preceding roll stacks outlet the entrance of rear roll stacks between and real-time measurement workpiece table
Face glossiness, and control device can connect to the multiple glossiness measuring device and the multiple cooling device, with base
Error between the target surface glossiness of the surface gloss and workpiece that are measured by glossiness measuring device is controlled by light
The amount of the gas of cooling device supply before damp degree measuring device.
Glossiness measuring device can be with the surface gloss of real-time measurement workpiece, and control device can receive by gloss
The surface gloss that degree measuring device measures, to generate measurement surface gloss value, and can be based on the target surface light of workpiece
Error between damp angle value and the measurement surface gloss value controls the confession of the gas supplied by the multiple cooling device
Ying Liang.
Control device can the error between target surface gloss value based on workpiece and measurement surface gloss value produce
The overall supplies of angry body, can be by the overall control for the gas supplied by the multiple cooling device at least equal to gas
Overall supplies, and control device can control the multiple cooling device to supply the amount of different gas.
Cooling device may include: cooling shell, cooling shell be arranged in each roll stacks in roll stacks entrance and
In outlet；First supply pipe and second supply pipe, first supply pipe and second supply pipe are connected to gas charging-tank and are arranged
In cooling shell；First jet, first jet are arranged in first supply pipe and supply gas to workpiece；Second nozzle, the
Two nozzles are arranged in second supply pipe and supply gas to the gap passed through for workpiece between the roller；And it is first-class
Control valve and second flow control valve, first flow control valve and second flow control valve are arranged in first supply pipe and second
In supply pipe and it is connected to control device.
Control device can execute PI control, and can control in first flow control valve and second flow control valve
At least one, to increase first supply pipe and second supply pipe when measuring surface gloss value and being greater than target surface gloss value
At least one of flow, and measure surface gloss value be less than target surface gloss value when reduce first supply pipe
With the flow of at least one of second supply pipe.
Glossiness measuring device may include: measurement shell, and measurement shell is mounted on the transport path of workpiece；Measurement
Roller, measurement roller are arranged to move in measurement shell and in contacting with workpiece or discontiguous state；Luminescence unit shines single
Member is arranged in measurement roller and light is allowed to be incident on the surface of workpiece；And light receiving unit, light receiving unit setting are being surveyed
It measures in roller and measures the light from the surface reflection of workpiece.
The gas being stored in gas charging-tank can be liquid nitrogen.
Another aspect of the present disclosure is to provide a kind of milling method of stainless steel plate, and the milling method is by including multiple roll
Roller group and allow the surface of stainless steel plate that there is target surface gloss value, the multiple roll stacks set along the moving direction of steel plate
It is set to a pair of rolls relative to each other, which includes: fluid supply for ROLLING OIL and cooling to be supplied to gas
Each Rolling roller in roll stacks；Surface measurement on the moving direction of steel plate near the outlet of the roll stacks of rear arrangement
Implementation measurement is carried out to the surface gloss value of steel plate between the front end of the coiler of steel plate；And flow control, to be used for
Fluid confession is controlled according to the difference between measurement surface gloss value and the target surface gloss value measured in surface measurement
Answer the amount of the gas of middle supply.
In surface measurement, can the outlet and the entrances of rear roll stacks of the preceding roll stacks of the conveying direction along steel plate it
Between real-time measurement is carried out to the surface gloss value of steel plate, and in flow control, can be measured according in surface measurement
Each measurement surface gloss value and in roll stacks each roll stacks setting target surface gloss value between difference
To control the amount of the gas supplied to each roll stacks in roll stacks.
In flow control, when the measurement surface gloss value measured in surface measurement is more than target surface gloss value
110% or less than the target surface gloss value 90% when, change the supply of gas supplied in fluid supply, should
Target surface gloss value is used for the roll stacks passed through before the position for reaching the surface gloss for measuring steel plate is tight.
In flow control, the supply of gas can be controlled by PI control, and locates gas at any time
Supply (u (t)) is determined by following formula:
Wherein, kpIt is ratio control gain,
kiIt is integration control gain, and
E (t) is the difference between the measurement surface gloss value located at any time and target surface gloss value.
Advantageous effects
As described above, during rolling, can inhibit defect occur according to illustrative embodiments, in detail, can press down
Produce existing surface defect.
In addition, productivity and quality can be improved while can execute high-speed rolling with constant quality.
Detailed description of the invention
Fig. 1 is the concept map of milling train according to illustrative embodiments.
Fig. 2 is the concept map according to the milling train of another exemplary embodiment.
Fig. 3 is the concept map of the cooling device of the disclosure.
Fig. 4 is the concept map of the glossiness measuring device of the disclosure.
Fig. 5 is the concept map according to the milling method of the stainless steel plate of the disclosure.
Fig. 6 illustrates the measurement surface gloss value of target surface gloss value with the glossiness measuring device measurement by the disclosure
Between difference.
Specific embodiment
In order to help to understand the description of embodiment of the present disclosure, the element being indicated by the same numbers in the accompanying drawings
For identical element, and the associated components in each embodiment in component with the same function are by identical attached drawing
Label or extension appended drawing reference indicate.
In order to illustrate the purport of the disclosure, the description to element as known in the art and technology will be omitted, and will ginseng
The disclosure is described in detail according to attached drawing.
The spirit of the disclosure is not limited to proposed embodiment, and can be and add as proposed by those skilled in the art
The other elements for adding, changing and deleting, these other elements are also included in concept and range identical with the concept of the disclosure.
In fig. 1 it is illustrated that milling train 1000 according to illustrative embodiments.Milling train according to illustrative embodiments
1000 may include roll stacks 100, and roll stacks 100 are including working roll 110 relative to each other and including intermediate calender rolls 120 and bearing
Roller 130, wherein workpiece 10 is plugged between working roll 110 relative to each other and is conveyed.
Roll stacks 100 can be set to multiple roll stacks of the conveying direction along workpiece 10, and claim for ease of description
For first roll group 100a, second roll group 100b and 3rd roll group 100c.Each roll stacks may include at least a pair of of work
Make roller 110, a pair of of intermediate calender rolls 120 and a pair of of backing roll 130.
However, the present disclosure is not limited thereto, and those skilled in the art can suitably change and using roll stacks structure
Type and number.
ROLLING OIL is supplied to each roll stacks by ROLLING OIL feeding mechanism 200.ROLLING OIL feeding mechanism 200 may include
The ROLLING OIL charging-tank 210 for accommodating ROLLING OIL, the movement routine for being set as ROLLING OIL being contained in ROLLING OIL charging-tank are rolled
Liquefaction supply pipe 220 and be connected to rolling oil supply pipe 220 and be arranged in the ROLLING OIL around roll stacks supply shell 230.
ROLLING OIL supply shell 230 is arranged in each of entrance and exit of working roll 110, and may include
Nozzle (not shown) ROLLING OIL being injected into roller.In addition, ROLLING OIL supply shell 230 may include first shell 230a,
ROLLING OIL is supplied to first roll group 100a, second shell by second shell 230b and third shell 230c, first shell 230a
ROLLING OIL is supplied to second roll group 100b by 230b, and ROLLING OIL is supplied to 3rd roll group 100c by third shell 230c.
Due to above-mentioned configuration, the ROLLING OIL supplied by ROLLING OIL feeding mechanism 200 can work between roller and workpiece
To help smoothly to roll.However, the temperature of ROLLING OIL may also rise when lasting and roller temperature increases between at work
It is high.
In this case, the viscosity of ROLLING OIL reduces, it is thus possible to lose lubricating function, and may go out in workpiece
The existing such as hot striped of surface defect.The surface defect of above-mentioned workpiece in order to prevent needs for workpiece 10 and roller to be cooled to centainly
It is horizontal.
For this purpose, in order to which the liquid nitrogen of cooling gas will be used as supplied to workpiece and roller shell can be supplied in ROLLING OIL
230 side is provided with cooling shell 310.In addition, cooling shell 310 is also in the mode similar with ROLLING OIL supply shell 230
It is contoured to correspond to one by one in first roll group 100a, second roll group 100b and 3rd roll group 100c.
However, the cooling shell that the type of cooling gas is not limited to the disclosure, and is arranged in first roll group 100a
The number of body 310 is also not necessarily limited to the disclosure, and can be appropriately modified and be applied by those skilled in the art.
The gas charging-tank 600 and cooling shell 310 for accommodating cooling gas can be connected by pipe unit 350.In addition,
Valve cell 360 can be set to control the flow of gas in pipe unit 350.
Valve cell 360 may include the first valve cell 360a, the second valve cell 360b and third valve cell 360c to control
Supplied to the cooling gas of first roll group, second roll group and 3rd roll group.
In addition, the first valve cell 360a, the second valve cell 360b and third valve cell 360c are connected to control device 500,
And control device 500 can control first according to the surface gloss value of the workpiece measured by glossiness measuring device 400
Valve cell 360a, the second valve cell 360b and third valve cell 360a, to control the flow of cooling gas.
In this case, due to that can execute to each mill operation of workpiece 10 accurate and accurately control to allow
ROLLING OIL supplies shell 230, cooling shell 310 and valve cell 360 and seriatim corresponds to first roll group 100a, second roll group
100b and 3rd roll group 100c, therefore quality can be improved.
Meanwhile it being reduced in the temperature of workpiece and roller by cooling with gas to prevent from occurring during the rolling operation surface and lack
In the case where falling into such as hot striped, the temperature of ROLLING OIL is also reduced.Therefore, the viscosity of ROLLING OIL is gradually increased.In such case
Under, if the viscosity of ROLLING OIL increases, be likely to occur workpiece 10 surface gloss reduce the problem of.The stainless steel the case where
Under, lustrous surface is more important, it is therefore desirable to solve the above problems.
Therefore, in the disclosure, real-time measurement is carried out to the surface gloss for the workpiece 10 that will become rolling workpiece, and
And the surface gloss is compared with target surface gloss value.Then, based on the comparison, the confession of the cooling gas of control
Ying Liang.
For this purpose, the real-time measurement workpiece 10 between 3rd roll group 100c and coiler 800 of glossiness measuring device 400
Surface gloss, and control device 500 receives the surface gloss measured by glossiness measuring device 400, to generate measurement
Surface gloss value, and can target surface gloss value based on workpiece and the survey that is measured by glossiness measuring device 400
The error between surface gloss value is measured to control the amount for the cooling gas supplied by cooling shell 310.
In this case, the target surface gloss value of workpiece 10 is desired surface gloss value, and by gloss
The measurement surface gloss value that degree measuring device 400 measures obtains desired surface matter at least equal to target surface gloss value
Amount.
The table of workpiece is measured between 3rd roll group 100c and coiler 800 when glossiness measuring device 400 is arranged in
When the glossiness of face, compared with by the amount of the cooling gas of first roll group 100a and second roll group 100b supply, Ke Yigeng
Delicately control the amount of the cooling gas by 3rd roll group 100c supply.
However, the present disclosure is not limited thereto, but it can be appropriately modified and be applied by those skilled in the art.
Meanwhile as shown in Figure 2, glossiness measuring device 400 can be configured to measure in the outlet of each roll stacks
The surface gloss of workpiece 10.In other words, the outlet and second of first roll group 100a is arranged in glossiness measuring device 400
Between the entrance of roll stacks 100b, between the outlet of second roll group and the entrance of 3rd roll group and 3rd roll group
Between outlet and coiler 800.
Therefore, it is surveyed by the glossiness being arranged between the outlet of first roll group 100a and the entrance of second roll group 100b
The information about surface gloss that amount device 400 measures can be the letter about the workpiece 10 for extending only through first roll group 100a
Breath, other glossiness measuring devices also measure surface gloss in a similar way.
Therefore, control device 500 can receive the letter of the surface gloss about workpiece 10 for each mill operation
Breath, and can control the supply of the cooling gas for each mill operation.Therefore, first roll group 100a is being passed through
Workpiece 10 surface gloss be clearly lower or higher than target value in the case where, in aforesaid operations pass through the first valve cell
360a controls the flow of cooling gas, by the viscosity-adjusting agent of ROLLING OIL to suitable level.
Therefore, checked when the rolling of workpiece 10 starts as-rolled condition to substantially reduce ratio of defects, and can based on by
The measurement surface gloss value of first roll group 100a is expected supplied to second roll group 100b and 3rd roll group 100c
The amount of cooling gas.
Hereinafter, the illustrative embodiments of the cooling device 300 of the disclosure will be described referring to Fig. 3.
Cooling device 300 according to the disclosure may include cooling shell 310, and cooling shell 310 is arranged in first roll
In the entrance and exit of each of group, second roll group and 3rd roll group (100a, 100b and 100c of Fig. 1 and Fig. 2),
And cooling shell 310 can according to need is set as multiple cooling shells in single roll stacks.
Cooling shell 310 is provided with pipe unit 350, and pipe unit 350 is connected to gas charging-tank 600 and is set as cooling use
The movement routine of gas, and pipe unit 350 may include the first supply pipe 320 and second across a surface of workpiece 10
Supply pipe 330.
First supply pipe 320 is provided with multiple first jets 321 in a longitudinal direction, and first jet 321 is arranged to
Allow injection hole opposite with a surface of workpiece 10 and workpiece 10 can be supplied to gas for cooling.
In addition, second supply pipe 330 is provided with multiple second nozzles 331, and 331 cloth of second nozzle in a longitudinal direction
Being set to allows injection hole opposite with the gap between working roll 110, and supplied to working roll 110 or is supplied cooling with gas
Gap to working roll 110 vertically relative to each other.
Due to first supply pipe 320 constructed as described above and second supply pipe 330, can individually control supplied to workpiece
With the cooling gas of working roll, therefore individually cooling control can be executed according to the state of cooling of workpiece and working roll.
In addition, first flow control can be set in each of first supply pipe 320 and second supply pipe 330
Valve 322 and second flow control valve 332.First flow control valve 322 and second flow control valve 332 are connected to control device
500, and first flow control valve and second flow control valve are opened or closed by control device 500 and controlled, therefore can be with
Control the flow for the cooling gas supplied by gas charging-tank 600.
Control device 500 calculates the difference between measurement surface gloss value and target surface gloss value, and therefore may be used
To calculate the overall supplies of cooling gas according to the difference between measurement surface gloss value and target surface gloss value.
In addition, in order to reach overall supplies, as shown in Figure 2 or Figure 3, by the conveying along workpiece 10 being mounted in cooling shell 310
The amount of the cooling gas for first jet or second nozzle (the 321 of Fig. 3 or 331) supply that direction is sequentially arranged can be phase
With or can be different from each other.
In other words, as shown in Fig. 2, by being mounted on for the cooling for being supplied to first roll group 100a with gas will to be cooled down
The gas flow of first jet or second nozzle supply in shell 310 is supplied to second with gas by being mounted on to be used to cool down
The gas flow and be used to incite somebody to action by being mounted on that first jet or second nozzle in the cooling shell 310 of roll stacks 100b are supplied
The gas flow of first jet or second nozzle supply in the cooling cooling shell 310 for being supplied to 3rd roll group 100c with gas
It can be identical or can be different from each other.
In detail, when characteristic, rolling condition etc. in view of workpiece 10 supplied in each mill operation it is different cold
When but using gas, individual operation of rolling control can be executed, and measurement surface gloss value and mesh can be further decreased
Mark the error between surface gloss value.It is thus possible to improve Rolling Production rate and surface quality.
For example, first roll group 100a, second roll group 100b and 3rd roll group 100c are supplied gas to, to allow
By the way that the cooling shell 310 being installed in first roll group 100a, second roll group 100b and 3rd roll group 100c is arranged in
In first jet or second nozzle supply cooling gas amount summation at least equal to calculated cooling gas
The total amount of body.Meanwhile supplied to the first roll in first roll group 100a, second roll group 100b and 3rd roll group 100c
The amount of the cooling gas of group 100a is minimum, and the amount of the cooling gas supplied to 3rd roll group 100c may be maximum
's.
Accordingly, it is considered to cold by air while being sent to 3rd roll group 100c from first roll group 100a to workpiece 10
But, it can be executed in first roll group 100a minimum cooling.Accordingly it is possible to prevent workpiece 10 reaches 3rd roll group 100c
It is cooled excessively before.
However, the present disclosure is not limited thereto, but it can be appropriately modified and be applied by those skilled in the art.
Meanwhile in Fig. 4, glossiness measuring device 400 according to illustrative embodiments is illustrated.
Glossiness measuring device 400 may include measurement shell 410, measurement roller 420, luminescence unit 430 and light-receiving
Unit 440, wherein measurement shell 410 is mounted on the transport path of workpiece 10, and measurement roller 420 is arranged in measurement shell 410
The middle direction along workpiece 10 moves and in contact with the surface of workpiece 10 or discontiguous state, and luminescence unit 430, which is arranged, to exist
In measurement roller and light is allowed to be incident on the surface of workpiece, light receiving unit 440 is arranged in measurement roller and measures from workpiece
The light of surface reflection.
In such a case, it is possible to which setting allows to measure the drawing of being raised and lowered of roller 420 on the two sides of measurement shell 410
Lead component 450.Guiding elements 450 is connected to the rotary shaft (not shown) of measurement roller 420, and can be by supporting member (not
Show) it connects to allow to measure roller 420 and rotate.
Guiding elements 450 can permit surface of the measurement roller 420 and increasing or reducing its own length with workpiece 10
Whether contact or not, and guiding elements 450 can be set to rack-and-pinion, linear in the range of this technical idea
Guiding piece etc..However, the type of guiding elements 450 is not limited to present disclosure.
It measures roller 420 and the side opposite with workpiece 10 is provided with measuring flume 460.Measuring flume 460 is in measurement roller 420
The slot of ontology inwardly concaved, and can be set in measuring flume 460 to allow light to be incident on the surface of workpiece 10
Luminescence unit 430 and the light receiving unit 440 for measuring the light from the surface reflection of workpiece 10.
As described above, the glossiness on the surface of workpiece 10 by the incident light that is issued by luminescence unit 430 with by light-receiving
The intensity ratio of the received reflected light of unit 440 measures.In addition, as described above, working as luminescence unit 430 and light receiving unit 440
When being arranged in measuring flume 460, the light reflected from external source can be stopped, therefore can be further improved measurement accuracy.
In addition, subtle damage of the measurement roller 420 when the surface with workpiece 10 is contacted to the surface of workpiece 10 in order to prevent,
The periphery of measurement roller 420 can be provided with the buffer component (not shown) formed by the workpiece with high ductibility.
Meanwhile another aspect of the present disclosure provides a kind of milling method for rolling, this method is by including multiple
Roll stacks and allow stainless steel plate surface have target surface gloss value, moving direction of the multiple roll stacks in steel plate
On be set as a pair of rolls relative to each other.
In this case, roll stacks may include directly by the surface of laminated steel a pair of of working roll and can also wrap
A pair of of intermediate calender rolls of pressing working roll are included, and roll stacks include a pair of of backing roll.Hereinafter, by a pair of of working roll, a centering
Between roller and a pair of of backing roll be known as roll stacks.
As shown in figure 5, milling method according to illustrative embodiments may include: fluid supply (S910) for inciting somebody to action
ROLLING OIL and the cooling each roll stacks being supplied to gas in roll stacks；Surface measurement (S920) is in steel plate movement side
Upwards between the front end of the coiler of the outlet and steel plate of the roll stacks of rear arrangement real-time measurement steel plate surface gloss
Value；And flow control (S930) is for according to target surface gloss value and measurement surface measured in surface measurement
Difference between gloss value controls the amount of the gas supplied in fluid supply.
In surface measurement (S920), can on the conveying direction in steel plate near the roll stacks of rear arrangement with for rolling up
Measure one-time surface glossiness between the coiler of steel plate, or can be more in the outlet of each roll stacks in roll stacks
Secondary measurement surface gloss.
When the former is referred to as final surface measurement and the latter is referred to as independent surface measurement, surveyed using final surface
In the method for amount, the cooling gas supplied to the roll stacks near rear arrangement most can be delicately controlled.This respect be due to
The surface gloss of steel plate is influenced by the cooling gas of the roll stacks supply near rear arrangement maximum.
Meanwhile in the method using independent surface measurement, the lustrous surface of steel plate can be controlled each mill operation
Degree.Therefore, the surface defect of workpiece can be identified when process starts, and steel plate can be controlled according to each mill operation
Surface.
The surface gloss value measured in surface measurement as described above (S920) can be used for controlling flow control
(S930) amount of the cooling gas in.Herein, in the case where final surface measurement in surface measurement (S920), Ke Yigen
Flow is controlled according to the final surface gloss in flow control.Alternatively, in the case where independent surface measurement, Ke Yigen
Flow is controlled according to the individual surface gloss in flow control.
In addition, the amount supplied to the cooling gas of each roll stacks in roll stacks can be entirely in flow control
Portion is identical or can be all different.However, when the cooling for being supplied to roll stacks according to the characteristic and rolling condition of steel plate
When being adjusted to the amount of gas for each mill operation difference, the accurate control that can execute reflection process characteristic therefore can
To improve quality.
However, the present disclosure is not limited thereto, but it can be appropriately modified and be applied by those skilled in the art.
Meanwhile the amount of the cooling gas controlled in flow control can by the measurement surface gloss value of steel plate with
Difference between the target surface gloss value to be obtained controls.Control as described above --- as shown in Figure 6 --- can be
Measurement surface gloss value be more than target surface gloss value 110% or less than its 90% when execute.
In other words, only work as error amount, i.e. difference between measurement surface gloss value and target surface gloss value, exceed
When ± 10% (being more than or less than) of target surface gloss value, just change the amount of cooling gas to be supplied.Alternatively,
When error amount is in the normal range (NR) (D), i.e. ± 10% when, be suitable for the cold of corresponding target surface gloss value according to supplying as former state
But gas is used.
In this case, when measurement surface gloss value is more than the 110% of target surface gloss value, cooling gas
The supply of body increases.Alternatively, cooling to use when measurement surface gloss value is less than the 90% of target surface gloss value
The supply of gas is reduced, therefore the temperature of the temperature of steel plate, the temperature of working roll and ROLLING OIL is controlled.Therefore, steel plate
Surface gloss can be controlled in normal range (NR).
However, when measure surface gloss value be more than target surface gloss value 110% or be less than its 90% when, error
Value exceeds normal range (NR) (D).In such a case, it is possible to control the amount of cooling gas by PI control.
In this respect, when the workpiece of rolling workpiece is the white coil pipe of 304 stainless steels, the workpiece of inlet with a thickness of 3.0
To 4.0mmt, total reduction is 50% to 60%, and it is (40 DEG C of 12cSt to 18cSt that the ROLLING OIL used, which is viscosity,
When) and saponification number (SV) be the mineral oil of 40mgKOH/g to 45mgKOH/g, the measurement result of the surface gloss of steel plate is
Average value is 210 and standard deviation is 20.Herein, variation is about 10%.Therefore, error amount between ± 10% the case where indicate
Normal range (NR), and the supply of cooling gas does not change in the normal range.
Meanwhile the supply for locating cooling gas at any time can be calculated according to [equation 1].
[equation 1]
Herein,
The injection rate of the liquid nitrogen for u (t)=locate at any time,
Difference between the measurement surface gloss value and target surface gloss value of e (t)=locate at any time,
kp=ratio controls gain, and
ki=integration control gain.
Herein, ratio control gain and integration control gain are the values determined by steel grade, rolling condition etc..
When calculating cooling gas flow by [equation 1], the error accumulated in the process can be executed, therefore can mention
The surface quality of high steel plate.
Although being closely described and illustrated embodiment above, apparent to those skilled in the art be can be
Various modifications and variations are made in the case where without departing substantially from the scope of the present disclosure defined by the claims.
Claims (12)
1. a kind of milling train, comprising:
Multiple roll stacks, the roll stacks include at least a pair of roller relative to each other, wherein workpiece is plugged on quilt between the roller
Conveying, and the roll stacks are arranged along the conveying direction of the workpiece；
Multiple ROLLING OIL feeding mechanisms, the ROLLING OIL feeding mechanism are contoured to correspond to each roll in the roll stacks
Group, for ROLLING OIL to be supplied to the roll stacks；
Multiple cooling devices, the multiple cooling device is contoured to correspond to each roll stacks in the roll stacks, to be used for
Supply gas to the workpiece and the roll stacks；
Glossiness measuring device, the glossiness measuring device are arranged in the rolling near rear arrangement on the workpiece moving direction
Between roller group and coiler for winding the workpiece, to measure the surface gloss of the workpiece；And
Control device, the control device are connected to the glossiness measuring device and the multiple cooling device, with according to by
The surface gloss that the glossiness measuring device measures controls the amount of the gas supplied by the multiple cooling device.
2. milling train according to claim 1, wherein the glossiness measuring device is set as multiple glossiness measurement dresses
It sets, the outlet that the multiple glossiness measuring device is arranged in the preceding roll stacks on the conveying direction of the workpiece is rolled with after
Between the entrance of roller group and real-time measurement described in workpiece surface gloss, and
The control device is connected to the multiple glossiness measuring device and the multiple cooling device, based on by the light
Error between the target surface glossiness of surface gloss and the workpiece that damp degree measuring device measures is controlled by described
The amount of the gas of cooling device supply before glossiness measuring device.
3. milling train according to claim 1, wherein the surface light of workpiece described in the glossiness measuring device real-time measurement
Damp degree, and
The control device receives the surface gloss measured by the glossiness measuring device, to generate measurement surface gloss
Value, and controlled based on the error between the target surface gloss value of the workpiece and the measurement surface gloss value by institute
State the supply of the gas of multiple cooling device supplies.
4. milling train according to claim 3, wherein target surface gloss value of the control device based on the workpiece
Error between the measurement surface gloss value generates the overall supplies of gas, by what is supplied by the multiple cooling device
The overall control of gas is at the overall supplies at least equal to the gas, and the multiple cooling of control device control fills
It sets to supply the amount of different gas.
5. the milling train according to any one of claim 2 to 4, wherein the cooling device includes:
Cooling shell, the cooling shell are arranged in the entrance and exit of each roll stacks in the roll stacks；
First supply pipe and second supply pipe, the first supply pipe and the second supply pipe are connected to gas charging-tank and set
It sets in the cooling shell；
First jet, the first jet are arranged in the first supply pipe and supply gas to the workpiece；
Second nozzle, between the second nozzle is arranged in the second supply pipe and supplies gas between the roller
Gap, wherein the workpiece passes through the gap；And
First flow control valve and second flow control valve, the first flow control valve and second flow control valve setting
In the first supply pipe and the second supply pipe and it is connected to the control device.
6. milling train according to claim 5, wherein the control device executes PI control, and controls the first flow
At least one of control valve and the second flow control valve, to be greater than the object table in the measurement surface gloss value
Increase the flow of at least one of the first supply pipe and the second supply pipe when gloss value of face, and in the survey
Amount surface gloss value reduces in the first supply pipe and the second supply pipe when being less than the target surface gloss value
The flow of at least one.
7. milling train according to any one of claims 1 to 4, wherein the glossiness measuring device includes:
Shell is measured, the measurement shell is mounted on the transport path of the workpiece；
Measure roller, the measurement roller is arranged to move in the measurement shell and be in be contacted or discontiguous with the workpiece
State；
Luminescence unit, the luminescence unit are arranged in the measurement roller and light are allowed to be incident on the surface of the workpiece；With
And
Light receiving unit, the light receiving unit are arranged in the measurement roller and measure from the surface reflection of the workpiece
Light.
8. milling train according to claim 5, wherein the gas stored in the gas charging-tank is liquid nitrogen.
9. a kind of milling method of stainless steel plate, the milling method is by including that multiple roll stacks allow the stainless steel plate
Surface there is target surface gloss value, the multiple roll stacks are set as relative to each other along the moving direction of the steel plate
A pair of rolls,
The milling method includes:
Fluid supply is with each rolling roller group for being supplied to ROLLING OIL and cooling with gas in the roll stacks；
Surface measurement in the moving direction along the steel plate near the outlet of the roll stacks of rear arrangement with the steel plate
Real-time measurement is carried out to the surface gloss value of the steel plate between the front end of coiler；And
Flow control with for according to target surface gloss value and the measurement surface gloss value that measures in surface measurement it
Between difference control the amount of the gas supplied in fluid supply.
10. the milling method of stainless steel plate according to claim 9, wherein in the surface measurement, along the steel
The surface gloss value of the steel plate is carried out between the outlet of the preceding roll stacks of the conveying direction of plate and the entrance of rear roll stacks
Real-time measurement, and
In the flow control, rolled according to each measurement surface gloss value measured in the surface measurement with for described in
Difference between the target surface gloss value of each roll stacks setting in roller group is controlled supplied to every in the roll stacks
The amount of the gas of a roll stacks.
11. the milling method of stainless steel plate according to claim 9 or 10, wherein in the flow control, when in institute
Stating the measurement surface gloss value measured in surface measurement is more than 110% of the target surface gloss value for roll stacks
Or less than the target surface gloss value 90% when, change the supply of gas supplied in fluid supply,
In, the roll stacks are the roll stacks that are passed through before the position for reaching the surface gloss for measuring the steel plate is tight.
12. the milling method of stainless steel plate according to claim 11, wherein in the flow control, controlled by PI
It makes to control the supply of the gas, and
The supply (u (t)) for locating the gas at any time is determined by following formula:
Wherein, kpIt is ratio control gain,
kiIt is integration control gain, and
E (t) is the difference between the measurement surface gloss value located at any time and target surface gloss value.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0089305 | 2016-07-14 | ||
| KR1020160089305A KR101778453B1 (en) | 2016-07-14 | 2016-07-14 | Rolling facility and rolling method for stainless steel |
| PCT/KR2017/007607 WO2018012939A1 (en) | 2016-07-14 | 2017-07-14 | Rolling facility and rolling method of stainless steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109475912A true CN109475912A (en) | 2019-03-15 |
Family
ID=59926649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780043727.XA Pending CN109475912A (en) | 2016-07-14 | 2017-07-14 | The milling method of rolling equipment and stainless steel plate |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3485991A4 (en) |
| KR (1) | KR101778453B1 (en) |
| CN (1) | CN109475912A (en) |
| WO (1) | WO2018012939A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404698A (en) * | 2019-08-01 | 2019-11-05 | 台州弘锐精密机械有限公司 | A kind of stainless steel plate production and processing technology |
| CN113529087A (en) * | 2021-07-13 | 2021-10-22 | 长鑫存储技术有限公司 | Method for controlling surface glossiness of metal workpiece and preparation method of metal film |
| CN113546971A (en) * | 2020-04-24 | 2021-10-26 | 德国考科斯技术有限公司 | Apparatus for cooling long products and method for cooling long products using said apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102065219B1 (en) * | 2017-12-22 | 2020-01-10 | 주식회사 포스코 | Apparatus and method for rolling |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04111903A (en) * | 1990-08-30 | 1992-04-13 | Nippon Steel Corp | Method for controlling surface property in sheet rolling |
| JPH10258301A (en) * | 1997-03-14 | 1998-09-29 | Kawasaki Steel Corp | Production of metal plate excellent in gloss |
| CN101362150A (en) * | 2008-09-08 | 2009-02-11 | 张明 | Double-roller casting rolling mill capable of arbitrarily adjusting roll gap |
| KR20140000550A (en) * | 2012-06-25 | 2014-01-03 | 주식회사 포스코 | Continuous rolling apparatus and continuous rolling method of stainless steel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04111902A (en) * | 1990-08-30 | 1992-04-13 | Nippon Steel Corp | Method for controlling gloss in sheet rolling |
| JP3252553B2 (en) * | 1993-08-23 | 2002-02-04 | 日本鋼管株式会社 | Method and apparatus for producing cold rolled steel sheet with excellent surface gloss |
| JPH08215709A (en) * | 1995-02-17 | 1996-08-27 | Nippon Steel Corp | Manufacture of black sheet for high surface dignity can |
| FR2867991B1 (en) * | 2004-03-25 | 2007-05-04 | Ugine Et Alz France Sa | AUSTENITIC STAINLESS STEEL STRIP BANDS MATT SURFACE |
-
2016
- 2016-07-14 KR KR1020160089305A patent/KR101778453B1/en active IP Right Grant
-
2017
- 2017-07-14 CN CN201780043727.XA patent/CN109475912A/en active Pending
- 2017-07-14 WO PCT/KR2017/007607 patent/WO2018012939A1/en unknown
- 2017-07-14 EP EP17828009.5A patent/EP3485991A4/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04111903A (en) * | 1990-08-30 | 1992-04-13 | Nippon Steel Corp | Method for controlling surface property in sheet rolling |
| JPH10258301A (en) * | 1997-03-14 | 1998-09-29 | Kawasaki Steel Corp | Production of metal plate excellent in gloss |
| CN101362150A (en) * | 2008-09-08 | 2009-02-11 | 张明 | Double-roller casting rolling mill capable of arbitrarily adjusting roll gap |
| KR20140000550A (en) * | 2012-06-25 | 2014-01-03 | 주식회사 포스코 | Continuous rolling apparatus and continuous rolling method of stainless steel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404698A (en) * | 2019-08-01 | 2019-11-05 | 台州弘锐精密机械有限公司 | A kind of stainless steel plate production and processing technology |
| CN113546971A (en) * | 2020-04-24 | 2021-10-26 | 德国考科斯技术有限公司 | Apparatus for cooling long products and method for cooling long products using said apparatus |
| CN113529087A (en) * | 2021-07-13 | 2021-10-22 | 长鑫存储技术有限公司 | Method for controlling surface glossiness of metal workpiece and preparation method of metal film |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3485991A1 (en) | 2019-05-22 |
| EP3485991A4 (en) | 2019-06-12 |
| KR101778453B1 (en) | 2017-09-14 |
| WO2018012939A1 (en) | 2018-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109475912A (en) | The milling method of rolling equipment and stainless steel plate | |
| CN106475424B (en) | A kind of control method of Hot Rolling Strip sideslip | |
| RU2670630C9 (en) | Hot-rolling method | |
| KR101395378B1 (en) | Hot-rolled steel sheet manufacturing method, and hot-rolled steel sheet manufacturing device | |
| CN104801551B (en) | A kind of hot continuous rolling slab reeling temperature controlling method | |
| JP5217516B2 (en) | Cooling control method in hot rolling and manufacturing method of hot rolled metal strip | |
| KR101506442B1 (en) | Process for hot rolling steel strips and hot rolling train | |
| US2067514A (en) | Method of and apparatus for cold rolling strip material | |
| KR101467724B1 (en) | Method for cooling hot-rolled steel sheet | |
| EP2813298A1 (en) | Method and device for enhanced strip cooling in the cold rolling mill | |
| KR20200110795A (en) | Casting piece manufacturing method and continuous casting equipment | |
| KR20150091963A (en) | Temperature distribution prediction apparatus | |
| BR112013028746B1 (en) | EQUIPMENT FOR COOLING HOT-LAMINATED STEEL SHEET | |
| JP6699688B2 (en) | Hot rolled steel sheet manufacturing method | |
| CN108906892B (en) | A kind of reversible roughing mill rolled piece tail portion tracking based on self study | |
| JP2010240660A (en) | Descaling device in hot rolling line, descaling method for material to be rolled in hot rolling, and method for manufacturing hot-rolled metal strip | |
| JP5453888B2 (en) | Operation method of apron of table roll in hot rolling line and hot rolling line, and manufacturing method of hot rolled metal strip | |
| KR100425602B1 (en) | Cooling control method of hot strip | |
| JP4102356B2 (en) | Cold rolling equipment and cold rolling method | |
| JP5239887B2 (en) | Hot rolled steel sheet manufacturing apparatus and manufacturing method | |
| JP2005254287A (en) | Method for suppressing nose warping of material to be rolled | |
| JP4760083B2 (en) | Method and apparatus for rolling plate material | |
| KR100931204B1 (en) | Method of manufacturing hot-rolled steel sheet | |
| JPS56119615A (en) | Hot rolling method | |
| JP6816482B2 (en) | Rolling oil supply equipment and rolling oil supply method |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190315 |
|
| WD01 | Invention patent application deemed withdrawn after publication |