CN109550792A - A kind of calculation method of hot-tandem unit sharing of load - Google Patents
A kind of calculation method of hot-tandem unit sharing of load Download PDFInfo
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- CN109550792A CN109550792A CN201811587492.3A CN201811587492A CN109550792A CN 109550792 A CN109550792 A CN 109550792A CN 201811587492 A CN201811587492 A CN 201811587492A CN 109550792 A CN109550792 A CN 109550792A
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- 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
- B21B37/58—Roll-force control; Roll-gap control
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/16—Matrix or vector computation, e.g. matrix-matrix or matrix-vector multiplication, matrix factorization
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Abstract
A kind of calculation method of hot-tandem unit sharing of load, specific as follows: the load distribution mode of standard is other by the layering of plate thickness range and there are products to roll in practical table；The load distribution mode of operator's input is the compound apportioning cost that operator is directed to each rack manual entry；The sharing of load value of operator's input and layer file product are rolled into the gauge load apportioning cost in practical table and carry out vector product calculating, obtain one group of vector data, again by each of this group of vector data element respectively divided by the greatest member in this group of vector data, to obtain the final roll-force sharing of load value of each rack, entire roll-force is assigned to each rack according to the ratio of final roll-force sharing of load value each in the Vector Groups.Using the mill load calculation method, the accuracy that roll-force distribution calculates can be improved, improve strip threading stability, reduce milling train waste product and generate, rejection rate reduces by 0.02%.
Description
Technical field
The invention belongs to metallurgical hot rolling production technical field more particularly to a kind of meters of hot-tandem unit sharing of load
Calculation method.
Background technique
Each rack rolling force setup of hot-tandem unit is the most important parameter for guaranteeing finishing mill rolling stability.Its
The accuracy that the accuracy of calculating is directly related to each rack strip threading stability and second flow calculates.Certain steel mill's mm finishing mill unit
Using roll-force sharing of load, since the sharing of load value of each rack is affected to rack tube rolling simulation, thus one is created
The calculation method of the new sharing of load of kind, it is intended to improve the accuracy of tube rolling simulation, to guarantee strip threading stability, subtract
Rolling waste product generates less.
Summary of the invention
The object of the present invention is to provide a kind of calculation methods of hot-tandem unit sharing of load, it is intended to improve finishing mill
The accuracy that each mill rolling force of group calculates reduces rolling waste product and generates to guarantee strip threading stability.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of calculation method of hot-tandem unit sharing of load, specific as follows:
Sharing of load is calculated using the load distribution mode that the load distribution mode of standard and operator input as foundation
It is calculated；
The load distribution mode of standard by the layering of plate thickness range not and there are in the practical table of product rolling, bear by standard
Lotus allocation model is set of number, it is preceding one or more racks gauge load apportioning cost be 0.4-1.0, it is posterior other
Rack gauge load apportioning cost can be less than forebay gauge load apportioning cost；
The load distribution mode of operator's input is also set of number, is that operator manually records for each rack
The sharing of load value entered, range is in 0-9；
The sharing of load value of operator's input and layer file product are rolled to the gauge load distribution in practical table
Value carries out vector product calculating, obtains one group of vector data, then by each of this group of vector data element respectively divided by this
Greatest member in group vector data, to obtain the final roll-force sharing of load value of each rack, according in the Vector Groups it is each most
Entire roll-force is assigned to each rack by the ratio of finish to gauge control-force load apportioning cost.
The load distribution mode initial value of operator's input is set as 5, and initial value is set as 0 if thinking that sky crosses certain rack.
Compared with prior art, the beneficial effects of the present invention are:
A kind of calculation method of rolling finishing mill group sharing of load of the present invention can be mentioned using the mill load calculation method
The accuracy that high roll-force distribution calculates, improves strip threading stability, reduces milling train waste product and generates, rejection rate reduces
0.02%.
Specific embodiment
Below with reference to embodiment, specific embodiments of the present invention will be further explained:
A kind of calculation method of hot-tandem unit sharing of load, specific as follows:
Sharing of load is calculated using the load distribution mode that the load distribution mode of standard and operator input as foundation
It is calculated；
The load distribution mode of standard by the layering of plate thickness range not and there are in the practical table of product rolling, bear by standard
Lotus allocation model is set of number, it is preceding one or more racks gauge load apportioning cost be 0.4-1.0, it is posterior other
Rack gauge load apportioning cost can be less than forebay gauge load apportioning cost；
The load distribution mode of operator's input is also set of number, is that operator manually records for each rack
The sharing of load value entered, range is in 0-9；
The sharing of load value of operator's input and layer file product are rolled to the gauge load distribution in practical table
Value carries out vector product calculating, obtains one group of vector data, then by each of this group of vector data element respectively divided by this
Greatest member in group vector data, to obtain the final roll-force sharing of load value of each rack, according in the Vector Groups it is each most
Entire roll-force is assigned to each rack by the ratio of finish to gauge control-force load apportioning cost.
The load distribution mode initial value of operator's input is set as 5, and initial value is set as 0 if thinking that sky crosses certain rack.
Embodiment 1:
By taking seven frame tandem mills as an example:
AOPI=6 666566 (AOPI is load distribution mode of the operator from picture typing)；
(ASPI is that the gauge load that product rolls in practical table divides to ASPI=1.0 1.0 1.0 1.0 1.0 0.8 0.6
With mode)；
In upper example, operator indicates other organic frames other than rack 5 from the load distribution mode of picture typing
All sharing of load will be carried out according to standard allocation model.For rack 5, operator wants load reducing by a unit, from 6
Reduce to the 83% of 5 or other rack loads.
The load distribution mode of operator's input, range is to be saved in computer between 0-9, and by this class value
In.Operator can modify this group of numerical value, these modifications will have an impact gauge load allocation model.
In addition to the 6th, the 7th rack, the load of other racks is equal in the gauge load mode in upper example in layer file
's.The load of 6th, the 7th two rack is respectively the 80% and 60% of rack 1-5.
Next, calculating the product of these vectors:
ASPI*AOPI=6 6665 4.8 3.6 (1)
All data in formula (1) are all divided by element (maximum element is 6) maximum in the Vector Groups:
ASUI=1.0 1.0 1.0 1.0 0.83 0.8 0.6
The final roll-force sharing of load value ASUI of each rack is obtained, it will be entire according to the ratio of each element in the Vector Groups
Roll-force is assigned to each rack.
Ratio shared by the load that rack 1-4 is distributed is as follows:
Ratio shared by the load of rack 5,6,7 is as follows:
P in formula (2)-(5)1-7For ratio shared by each rack load；ASUI (I) is the final roll-force of rack 1- rack 4
Sharing of load value；ASUI (5-7) is the final roll-force sharing of load value of rack 5- rack 7；For each rack
The summation of final roll-force sharing of load value ASUI.
Claims (2)
1. a kind of calculation method of hot-tandem unit sharing of load, which is characterized in that specific as follows:
Sharing of load is calculated using the load distribution mode that the load distribution mode of standard and operator input as according to progress
It calculates；
By the layering of plate thickness range not and there are in the practical table of product rolling, the load of standard divides the load distribution mode of standard
It is set of number with mode, the gauge load apportioning cost of preceding one or more rack is 0.4-1.0, posterior others machine
The gauge load apportioning cost of frame can be less than the gauge load apportioning cost in forebay；
The load distribution mode of operator's input is also set of number, is operator for each rack manual entry
Sharing of load value, range is in 0-9；
By the sharing of load value of operator's input and layer file product roll the gauge load apportioning cost in practical table into
Row vector product calculates, and obtains one group of vector data, then by each of this group of vector data element respectively divided by the group to
The greatest member in data is measured, so that the final roll-force sharing of load value of each rack is obtained, according to most finish to gauge each in the Vector Groups
Entire roll-force is assigned to each rack by the ratio of control-force load apportioning cost.
2. a kind of calculation method of hot-tandem unit sharing of load according to claim 1, which is characterized in that operation
The load distribution mode initial value of personnel's input is set as 5, and initial value is set as 0 if thinking that sky crosses certain rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587492.3A CN109550792A (en) | 2018-12-25 | 2018-12-25 | A kind of calculation method of hot-tandem unit sharing of load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587492.3A CN109550792A (en) | 2018-12-25 | 2018-12-25 | A kind of calculation method of hot-tandem unit sharing of load |
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| CN109550792A true CN109550792A (en) | 2019-04-02 |
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| CN201811587492.3A Pending CN109550792A (en) | 2018-12-25 | 2018-12-25 | A kind of calculation method of hot-tandem unit sharing of load |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558615A (en) * | 2020-05-18 | 2020-08-21 | 山西太钢不锈钢股份有限公司 | Method for controlling finish rolling pressure of titanium plate on hot continuous rolling line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797588A (en) * | 2010-04-01 | 2010-08-11 | 中色科技股份有限公司 | Secondary control rolling force forecasting method of hot mill |
| CN107442577A (en) * | 2016-05-30 | 2017-12-08 | 上海梅山钢铁股份有限公司 | A kind of fine-rolling strip steel sharing of load establishing method |
-
2018
- 2018-12-25 CN CN201811587492.3A patent/CN109550792A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797588A (en) * | 2010-04-01 | 2010-08-11 | 中色科技股份有限公司 | Secondary control rolling force forecasting method of hot mill |
| CN107442577A (en) * | 2016-05-30 | 2017-12-08 | 上海梅山钢铁股份有限公司 | A kind of fine-rolling strip steel sharing of load establishing method |
Non-Patent Citations (2)
| Title |
|---|
| 王鲁宁等: "精轧机组数学模型负荷分配正交化算法", 《2005中国钢铁年会论文集》 * |
| 王鹏: "基于BP神经网络的热轧带钢厚度控制", 《辽宁科技大学硕士学位论文》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558615A (en) * | 2020-05-18 | 2020-08-21 | 山西太钢不锈钢股份有限公司 | Method for controlling finish rolling pressure of titanium plate on hot continuous rolling line |
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Application publication date: 20190402 |
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