CN107008757B - A kind of pressure oil cylinder Deviation Control Method of continuous hot-rolling mill - Google Patents
A kind of pressure oil cylinder Deviation Control Method of continuous hot-rolling mill Download PDFInfo
- Publication number
- CN107008757B CN107008757B CN201610059451.1A CN201610059451A CN107008757B CN 107008757 B CN107008757 B CN 107008757B CN 201610059451 A CN201610059451 A CN 201610059451A CN 107008757 B CN107008757 B CN 107008757B
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- pressure oil
- cylinder position
- rack
- deviation
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
-
- 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
Abstract
The invention discloses a kind of pressure oil cylinder position Deviation Control Methods of continuous hot-rolling mill comprising step：(1) state for judging continuous hot-rolling mill rack then carries out step (2a) if " having steel " state, if " no steel " state, then carries out step (2b)；(2a) dynamic deviation controls：Calculate the variance of pressure oil cylinder position deviationJudgeWhether variance threshold values are more than, and whether θ is more than α, and pressure oil cylinder is then locked if it is "Yes"；It is normal to roll if it is "No"；(2b) static deviation controls：Calculate separately the pressure oil cylinder position deviation s of active side1With the pressure oil cylinder position deviation s of transmission side2：Calculate the pressure oil cylinder position deviation S of the rack both sides；If S >=β1, then forbid rack into steel；If S ＜ β1, then allow rack into steel, carry out next step；If s1And s2At least one be more than or equal to β2,, then pressure oil cylinder is locked, if s1And s2Respectively less than β2, then normally rolled.
Description
Technical field
The present invention relates to a kind of Deviation Control Method more particularly to a kind of pressure oil cylinder Deviation Control Methods.
Background technology
The rack both sides (active side and transmission side) of continuous hot-rolling mill usually have the pressure oil cylinder for roll gap leveling.
The active force being subject to during the rolling process due to continuous hot-rolling mill is larger (usually in 3000-5000t), in order to protect pressure
Lower oil cylinder is equipped with pressure in the arrival end and outlet end of the arrival end of rack active side and outlet end and rack transmission side at present
Lower oil cylinder position sensor sets pressure oil cylinder ceiling to detect the position of the pressure oil cylinder of rack both sides according to the position
Part.Specifically：It is passed according to the pressure oil cylinder position of the arrival end of rack unilateral (arbitrary side in rack both sides) and outlet end
The data that sensor measures obtain the pressure oil cylinder position deviation of the unilateral side；When unilateral pressure oil cylinder position deviation is more than a certain threshold
When value, continuous hot-rolling mill stops and opens roll gap soon automatically, to prevent the pressure oil cylinder of the unilateral side in an inclined state, by active force
Influence concentrated wear or fracture occurs；Further, since unilateral pressure oil cylinder position deviation crosses conference and causes rack both sides
Roll gap deviation is excessive, therefore when unilateral pressure oil cylinder position deviation is excessive, continuous hot-rolling mill blocks both sides roll gap leveling automatically
Function.
Said program has the following problems：
1) when unilateral pressure oil cylinder position deviation is more than a certain threshold value (such as 3.5mm), continuous hot-rolling mill locks automatically
Oil cylinder is depressed, to which roll gap leveling can not be carried out, causes the steel scrap after sideslip；
2) when unilateral pressure oil cylinder position deviation is more than a certain threshold value (such as 10mm), continuous hot-rolling mill stops simultaneously soon automatically
Roll gap is opened, to cause steel scrap.
The general character of the above problem is that pressure oil cylinder position deviation control condition is unilateral single, causes steel scrap rate big.
Invention content
The purpose of the present invention is to provide a kind of pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill, this method is used for
The operation of rolling of continuous hot-rolling mill is controlled to protect pressure oil cylinder, this method to consider accurate setting pressure oil comprehensively from whole
Cylinder position deviation control condition reduces steel scrap rate to ensure normal rolling as possible under the premise of oil cylinder is depressed in protection.
To achieve the goals above, the present invention proposes a kind of pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill,
It includes step：
(1) state for judging continuous hot-rolling mill rack then carries out step (2a) if " having steel " state, if " no steel " shape
State then carries out step (2b)；
(2a) dynamic deviation controls：
The variance of pressure oil cylinder position deviation is calculated by following models
Wherein, λ indicates coefficient of variation；N indicates sweeping for the data measured to pressure oil cylinder position sensor in control time
Retouch number；θ1、θ2、θ3……θnThe 1st scan period, the 2nd scan period, the 3rd scan period ... n-th are indicated respectively
The pressure oil cylinder position deviation of rack both sides in a scan period；θ is θ1、θ2、θ3……θnMean value, j=1,2,3 ...
n；xj1Indicate the data that the arrival end pressure oil cylinder position sensor in j-th of scan period interior framework active side measures；xj2Table
Show the data measured in the outlet end of j-th of scan period interior framework active side pressure oil cylinder position sensor；xj3It indicates in jth
The data that the arrival end pressure oil cylinder position sensor of a scan period interior framework transmission side measures；xj4It indicates to scan at j-th
The data that the outlet end pressure oil cylinder position sensor of period interior framework transmission side measures；
JudgeWhether variance threshold values are more than, and whether θ is more than the first deviation threshold α, and pressure is then locked if it is "Yes"
Oil cylinder；It is normal to roll if it is "No"；
(2b) static deviation controls：
Calculate separately the pressure oil cylinder position deviation s of the active side of the rack of continuous hot-rolling mill1With the pressure oil cylinder of transmission side
Position deviation s2：
s1=| x1-x2|；
s2=| x3-x4|；
Wherein, x1Indicate the data that the arrival end pressure oil cylinder position sensor of rack active side measures；x2Indicate rack work
Make the data that the outlet end pressure oil cylinder position sensor of side measures；x3Indicate that the arrival end of rack transmission side depresses oil cylinder position
The data that sensor measures；x4Indicate the data that the outlet end pressure oil cylinder position sensor of rack transmission side measures；
Calculate the pressure oil cylinder position deviation S of the rack both sides：
By the pressure oil cylinder position deviation S and the second deviation threshold β of rack both sides1It is compared, if S >=β1, then forbid machine
Frame is into steel；If S ＜ β1, then allow rack into steel, carry out next step；
By the pressure oil cylinder position deviation s of active side1With the pressure oil cylinder position deviation s of transmission side2Respectively and third deviation
Threshold value beta2It is compared, if s1And s2At least one be more than or equal to β2,, then pressure oil cylinder is locked, if s1And s2Respectively less than
β2, then normally rolled.
The pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill of the present invention, is used for the rolling to continuous hot-rolling mill
Process is controlled to protect pressure oil cylinder, and this method is from whole consideration, for " having steel " state and " nothing of continuous hot-rolling mill rack
Steel " state is applicable in dynamic deviation control and static deviation control respectively, comprehensively accurate setting pressure oil cylinder position deviation control strip
Part reduces steel scrap rate to ensure normal rolling as possible under the premise of oil cylinder is depressed in protection.
Specifically：θ of the dynamic deviation control based on the pressure oil cylinder position extent of deviation for representing overall dynamicsjIt calculates
To the variance of pressure oil cylinder position deviationWith the varianceAnd θjMean value θ whether transfinite as locking pressure oil cylinder and just
The Rule of judgment often rolled；VarianceSmaller to show that oil cylinder position deviation is more stable, the setting of coefficient of variation λ is to pursue more
Add stable purpose.To ensure that rack stability, dynamic deviation control do not consider unilateral deviation control.Static deviation control is based on
The pressure oil cylinder position deviation S for representing the rack both sides of the pressure oil cylinder position extent of deviation of whole static state, with deviation S whether
It transfinites as the Rule of judgment for forbidding rack into steel with permission rack into steel；And controlled using unilateral deviation, i.e., with the work of rack
Make the pressure oil cylinder position deviation s of side1With the pressure oil cylinder position deviation s of transmission side2Whether transfinite as locking pressure oil cylinder and
The Rule of judgment normally rolled.
Further, in the pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill of the present invention, in the step
(1) in, the state of each rack is judged according to the roll-force absolute value of each rack.
Further, in the pressure oil cylinder position Deviation Control Method of above-mentioned continuous hot-rolling mill, in the step (1)
In, judge whether strip reaches specified window, and whether the roll-force absolute value of each rack reaches threshold value, if it is "Yes",
Then it is judged as " having steel " state, if it is "No", is judged as " no steel " state.
Further, in the pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill of the present invention, in the step
In (2a), if it is determined that "Yes", then also send out alarm signal.
The pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill of the present invention has the following advantages：
(1) accurate setting pressure oil cylinder position deviation control condition comprehensively is considered from whole, to depress oil cylinder in protection
Under the premise of ensure normal rolling as possible, reduce steel scrap rate；
(2) existing equipment can be based on to improve, does not need additional used device；
(3) meet trend of the steel industry to the requirements at the higher level of raising production efficiency and Process Precision control.
Description of the drawings
Fig. 1 is the flow diagram of the pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill of the present invention.
Specific implementation mode
Below in conjunction with Figure of description and specific embodiment to the pressure oil cylinder position of continuous hot-rolling mill of the present invention
It sets Deviation Control Method and makes further explanation explanation, but the explanation is not constituted to technical scheme of the present invention
Improper restriction.
The pressure oil cylinder position Deviation Control Method of the continuous hot-rolling mill of the present embodiment is used for the operation of rolling to continuous hot-rolling mill
It is controlled to protect pressure oil cylinder, the control is real by the PLC system being connect with the protection pressure relevant execution system of oil cylinder
It is existing, program corresponding with the flow of the above method is provided in the PLC system.
Fig. 1 shows the flow of the pressure oil cylinder position Deviation Control Method of the continuous hot-rolling mill of the present embodiment.
As shown in Figure 1, the pressure oil cylinder position Deviation Control Method of the continuous hot-rolling mill of the present embodiment is by being provided with correspondence
The PLC system of the program of following steps is realized：
(1) rack status judges：The state for judging continuous hot-rolling mill rack then carries out step (2a) if " having steel " state,
If " no steel " state, then step (2b) is carried out；
(2a) dynamic deviation controls：
The variance of pressure oil cylinder position deviation is calculated by following modelsObtain the rack in n scan period simultaneously
The mean value θ of the pressure oil cylinder position deviation of both sides：
Wherein, λ indicates coefficient of variation；N indicates sweeping for the data measured to pressure oil cylinder position sensor in control time
Retouch number；θ1、θ2、θ3……θnThe 1st scan period, the 2nd scan period, the 3rd scan period ... n-th are indicated respectively
The pressure oil cylinder position deviation of rack both sides in a scan period；θ is θ1、θ2、θ3……θnMean value, j=1,2,3 ...
n；xj1Indicate the data that the arrival end pressure oil cylinder position sensor in j-th of scan period interior framework active side measures；xj2Table
Show the data measured in the outlet end of j-th of scan period interior framework active side pressure oil cylinder position sensor；xj3It indicates in jth
The data that the arrival end pressure oil cylinder position sensor of a scan period interior framework transmission side measures；xj4It indicates to scan at j-th
The data that the outlet end pressure oil cylinder position sensor of period interior framework transmission side measures；
JudgeWhether variance threshold values are more than, and whether θ is more than the first deviation threshold α, and pressure is then locked if it is "Yes"
Oil cylinder is simultaneously emitted by alarm signal；It is normal to roll if it is "No"；
(2b) static deviation controls：
Calculate separately the pressure oil cylinder position deviation s of the active side of the rack of continuous hot-rolling mill1With the pressure oil cylinder of transmission side
Position deviation s2：
s1=| x1-x2|；
s2=| x3-x4|；
Wherein, x1Indicate the data that the arrival end pressure oil cylinder position sensor of rack active side measures；x2Indicate rack work
Make the data that the outlet end pressure oil cylinder position sensor of side measures；x3Indicate that the arrival end of rack transmission side depresses oil cylinder position
The data that sensor measures；x4Indicate the data that the outlet end pressure oil cylinder position sensor of rack transmission side measures；
The pressure oil cylinder position deviation S of computer rack both sides：
By the pressure oil cylinder position deviation S and the second deviation threshold β of rack both sides1It is compared, if S >=β1, then forbid machine
Frame is into steel；If S ＜ β1, then allow rack into steel, carry out next step；
By the pressure oil cylinder position deviation s of active side1With the pressure oil cylinder position deviation s of transmission side2Respectively and third deviation
Threshold value beta2It is compared, if s1And s2At least one be more than or equal to β2,, then pressure oil cylinder is locked, if s1And s2Respectively less than
β2, then normally rolled.
In above-mentioned steps (1), it can judge that the state of each rack is specifically sentenced according to the roll-force absolute value of each rack
Whether broken belt steel reaches specified window, and whether the roll-force absolute value of each rack reaches threshold value, if it is "Yes", judges
It is judged as " no steel " state if it is "No" for " having steel " state.
Table 1 lists the absolute value of the roll-force of continuous hot-rolling mill rack F1~F7 under above-mentioned rack status judgment method
The range of threshold value.It should be noted that for a specific embodiment, threshold value is the range being located at listed by table 1
A point value in value.
Table 1.
Embodiment 1
In this embodiment, PLC system executes program corresponding with above-mentioned steps in the rack F1 in above-mentioned table 1
Above-mentioned execution system is controlled, and detailed process is：
(1) judge rack status：It is same not reach specified window (being in the present embodiment the edger roll before finish rolling) for strip at this time
When, the roll-force absolute value of rack F1 is 28t, compares above-mentioned table 1 and understands that it does not reach any in threshold value 400-550t
One value, therefore rack F1 is " no steel " state certainly at this time, carries out step (2b)；
(2b) static deviation controls：
The arrival end that PLC system obtains the active side of rack F1 at this time by oil cylinder position sensor depresses oil cylinder position biography
The data x that sensor measures1, active side the outlet end data x that measures of pressure oil cylinder position sensor2, transmission side entrance side pressure
The data x that lower oil cylinder position sensor measures3And the data x that the outlet end pressure oil cylinder position sensor of transmission side measures4,
Specifically data are：x1=25.4mm, x2=22.3mm, x3=17.8mm, x4=28.9mm；And it is calculated as follows to obtain active side
Pressure oil cylinder position deviation s1, transmission side pressure oil cylinder position deviation s2And the pressure oil cylinder position deviation of rack both sides
S：
s1=| x1-x2|,
S2=| x3-x4 |,
Specifically data are：s1=3.1mm, s2=11.1mm, S=7.1mm；
Second deviation threshold β in the present embodiment19.5mm is taken, S ＜ β at this time are compared to determine through PLC system1, allow rack into
Steel carries out next step；
Third deviation threshold β in the present embodiment210mm is taken, s at this time is compared to determine through PLC system2＞ β2, locking pressure oil
Cylinder.
Embodiment 2
Summarize in the present embodiment, PLC system executes program corresponding with above-mentioned steps in the rack F2 in above-mentioned table 1
Above-mentioned execution system controlled, detailed process is：
(1) judge rack status：Strip reaches specified window (being in the present embodiment finish rolling F1 racks), and rack at this time
The roll-force absolute value of F2 is 1852t, compares above-mentioned table 1 it is found that it has been over any one of 400-550t shown in table 1
A value, therefore rack F2 is necessarily " having steel " state at this time, carries out step (2a)；
(2a) dynamic deviation controls：
PLC system with the scan period of 50ms by oil cylinder position sensor obtain 20 scan period j in 1 second (j=1,
The data x that measures of arrival end pressure oil cylinder position sensor of 2,3 ... the 20) active sides of rack F2j1, active side outlet end
The data x that pressure oil cylinder position sensor measuresj2, transmission side the data x that measures of arrival end pressure oil cylinder position sensorj3
And the data x that the outlet end pressure oil cylinder position sensor of transmission side measuresj4, and be calculated as follows to obtain 20 scan periods
The pressure oil cylinder position deviation θ of interior rack both sidesj：
Specific data are as shown in table 2：
Table 2.
To the θ in table 2jAverage to obtain the pressure oil cylinder position deviation of the rack both sides in above-mentioned 20 scan periods
Mean value θ=0.92175mm, and it is calculated as follows to obtain the variance of the pressure oil cylinder position deviation in above-mentioned 20 scan periods
λ takes 1, n=20 in the present embodiment, therefore
Variance threshold values take 0.01mm, the first deviation threshold α to take 6mm, compared to determine at this time through PLC system in the present embodiment
No more than variance threshold values, and θ is not more than the first deviation threshold α, normal to roll.
It should be noted that the above list is only specific embodiments of the present invention, it is clear that the present invention is not limited to above real
Example is applied, there are many similar variations therewith.If those skilled in the art directly exported from present disclosure or
All deformations associated, are within the scope of protection of the invention.
Claims (4)
1. a kind of pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill, which is characterized in that including step：
(1) state for judging continuous hot-rolling mill rack then carries out step (2a) if " having steel " state, if " no steel " state, then
Carry out step (2b)；
(2a) dynamic deviation controls：
The variance of pressure oil cylinder position deviation is calculated by following models
Wherein, λ indicates coefficient of variation；N indicates the scanning time of the data measured to pressure oil cylinder position sensor in control time
Number；θ1、θ2、θ3……θnIndicate that the 1st scan period, the 2nd scan period, the 3rd scan period ... sweep for n-th respectively
Retouch the pressure oil cylinder position deviation of the rack both sides in the period；θ is θ1、θ2、θ3……θnMean value, j=1,2,3 ... n；xj1
Indicate the data that the arrival end pressure oil cylinder position sensor in j-th of scan period interior framework active side measures；xj2It indicates
The data that the outlet end pressure oil cylinder position sensor of j-th of scan period interior framework active side measures；xj3Expression is swept at j-th
Retouch the data that the arrival end pressure oil cylinder position sensor of period interior framework transmission side measures；xj4It indicates j-th of scan period
The data that the outlet end pressure oil cylinder position sensor of interior framework transmission side measures；
JudgeWhether variance threshold values are more than, and whether θ is more than the first deviation threshold α, and pressure oil cylinder is then locked if it is "Yes"；
It is normal to roll if it is "No"；
(2b) static deviation controls：
Calculate separately the pressure oil cylinder position deviation s of the active side of the rack of continuous hot-rolling mill1It is inclined with the pressure oil cylinder position of transmission side
Poor s2：
s1=| x1-x2|；
s2=| x3-x4|；
Wherein, x1Indicate the data that the arrival end pressure oil cylinder position sensor of rack active side measures；x2Indicate rack active side
The data that measure of outlet end pressure oil cylinder position sensor；x3Indicate the arrival end pressure oil cylinder position sensing of rack transmission side
The data that device measures；x4Indicate the data that the outlet end pressure oil cylinder position sensor of rack transmission side measures；
Calculate the pressure oil cylinder position deviation S of the rack both sides：
By the pressure oil cylinder position deviation S and the second deviation threshold β of rack both sides1It is compared, if S >=β1, then forbid rack into
Steel；If S ＜ β1, then allow rack into steel, carry out next step；
By the pressure oil cylinder position deviation s of active side1With the pressure oil cylinder position deviation s of transmission side2Respectively with third deviation threshold
β2It is compared, if s1And s2At least one be more than or equal to β2, then pressure oil cylinder is locked, if s1And s2Respectively less than β2, then
Normally rolled.
2. the pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill as described in claim 1, which is characterized in that in the step
Suddenly in (1), the state of each rack is judged according to the roll-force absolute value of each rack.
3. the pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill as claimed in claim 2, which is characterized in that in the step
Suddenly in (1), judge whether strip reaches specified window, and whether the roll-force absolute value of each rack reaches threshold value, if it is
"Yes" is then judged as " having steel " state, if it is "No", is judged as " no steel " state.
4. the pressure oil cylinder position Deviation Control Method of continuous hot-rolling mill as described in claim 1, which is characterized in that in the step
Suddenly in (2a), if it is determined that "Yes", then also send out alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059451.1A CN107008757B (en) | 2016-01-28 | 2016-01-28 | A kind of pressure oil cylinder Deviation Control Method of continuous hot-rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059451.1A CN107008757B (en) | 2016-01-28 | 2016-01-28 | A kind of pressure oil cylinder Deviation Control Method of continuous hot-rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107008757A CN107008757A (en) | 2017-08-04 |
| CN107008757B true CN107008757B (en) | 2018-09-04 |
Family
ID=59438659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610059451.1A Active CN107008757B (en) | 2016-01-28 | 2016-01-28 | A kind of pressure oil cylinder Deviation Control Method of continuous hot-rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107008757B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126985B (en) * | 2017-11-30 | 2019-07-02 | 马鞍山钢铁股份有限公司 | A kind of universal profiled rolling mill upper roller axially retains the control method of plate |
| CN111389926B (en) * | 2020-03-24 | 2021-03-16 | 山西太钢不锈钢股份有限公司 | O mode control operation method under hot continuous rolling rough rolling R0 pressure |
| CN111872133B (en) * | 2020-08-03 | 2022-03-15 | 华峰铝业有限公司 | Metal composite material bonding rolling method for improving defects of air bubbles and leather material deviation |
| CN114789198B (en) * | 2021-10-14 | 2024-02-02 | 天津市新宇彩板有限公司 | Method and system for improving vibration belt breakage of main oil cylinder of cold rolling mill |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1467446A (en) * | 1973-04-10 | 1977-03-16 | Davy Loewy Ltd | Eccentricity correction in a rolling mill |
| JPS5794411A (en) * | 1980-12-03 | 1982-06-11 | Kawasaki Steel Corp | Zero point setting method of roll gap in bar steel rolling mill |
| JPS6245417A (en) * | 1985-08-23 | 1987-02-27 | Nippon Kokan Kk <Nkk> | Rolling reduction force control method for rolling roll |
| KR100513775B1 (en) * | 2000-12-23 | 2005-09-09 | 주식회사 포스코 | Method for controlling strip width in the fgc |
| CN2762905Y (en) * | 2004-10-26 | 2006-03-08 | 北京欧拓普科技有限公司 | System for controlling hydraulic pressing position of rolling mill |
| CN102120224B (en) * | 2010-01-08 | 2012-10-10 | 宝山钢铁股份有限公司 | Control method of automatic deviation correction during rolling of hot continuous rolling mill |
| CN103191931B (en) * | 2012-01-10 | 2015-03-04 | 宝山钢铁股份有限公司 | Method for controlling two side deviations after zero adjustment of hot continuous rolling mill |
| CN103203372B (en) * | 2012-01-11 | 2015-05-20 | 宝山钢铁股份有限公司 | Control method for eliminating static deviation value of hot continuous rolling mill |
| CN104874611B (en) * | 2014-02-27 | 2017-02-15 | 宝山钢铁股份有限公司 | Method for controlling position of pinch roll at finish rolling inlet of hot continuous rolling device |
-
2016
- 2016-01-28 CN CN201610059451.1A patent/CN107008757B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107008757A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107008757B (en) | A kind of pressure oil cylinder Deviation Control Method of continuous hot-rolling mill | |
| US10328636B2 (en) | Additive manufacturing quality control systems | |
| US20210252786A1 (en) | Additive manufacturing quality control systems | |
| CN103345209B (en) | production monitoring method and system | |
| CN109351781B (en) | Strip steel seam edge wave control method and device | |
| CN103197609A (en) | Modeling method for numerical control machining dynamic features | |
| CN105537269B (en) | A kind of continuous casting thick stock center hole defect rolls the control method of conjunction | |
| CN105069296A (en) | Determination method and system of equipment threshold value | |
| TWI749735B (en) | Reduction generation prediction system | |
| CN105665449B (en) | The control device of tandem mill and the control method of tandem mill | |
| CN112699946A (en) | Anomaly detection method and device for sensing monitoring data and related equipment | |
| CN107552577A (en) | A kind of method for improving cold-rolling mill master cylinder magnetic scale interim card broken belt | |
| CN111062595B (en) | Acceptance method and device for substitute processing product and computer readable storage medium | |
| CN107537867A (en) | A kind of monitoring method and system of collector valve response time | |
| CN110907135A (en) | Control method and device of manufacturing equipment | |
| CN107315953B (en) | Equipment safety detection system and detection method | |
| KR100467231B1 (en) | The roll force prediction method in cold skin pass mill | |
| CN202815932U (en) | Hot-rolled raw material coil product automatic grading system | |
| CN102896183B (en) | Method for judging successful coil contact action of hot rolled steel coil stripper car | |
| Taherian et al. | Capability analysis and use of acceptance and control charts in the 6-Sigma in pharmaceutical industries case study: Behestan tolid pharmaceutical co | |
| KR20030053619A (en) | Hot rolling method for controlling width profile of hot strip | |
| KR101849328B1 (en) | Prediction system of workroll exchange time through online surface roughness measurement | |
| US20170322549A1 (en) | Processing Apparatus | |
| CN105728476A (en) | Detection and analysis system for camber of middle strip billet in hot rolling process | |
| He et al. | The Failure Rate Experimental Study of Special CNC Machine Tool |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |