CN110516854B - User rule-based medium plate multi-order material design optimization method - Google Patents
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- 125000004122 cyclic group Chemical group 0.000 claims description 3
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- 238000010438 heat treatment Methods 0.000 description 4
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Abstract
A design optimization method for a medium plate multi-order material based on user rules belongs to the technical field of information. The method mainly aims to solve the problems of minimum planned output and maximum planned yield of blank selection calculation during medium plate multi-order material design. The method comprises the steps of firstly, calculating the size of a mother board according to the size and the number of blocks of each sales order daughter board based on a user rule to form the size of 1 mother board; secondly, performing material design on order groups with the same quality requirement, the same motherboard thickness and the same motherboard width, and marking merger marks on mergeable orders; thirdly, grouping orders which have the same quality requirement and the same motherboard thickness and are not marked with merging marks, and marking merging marks on the orders which can be merged; and finally, performing material design on the orders which are not marked with the combined marks and have the same quality requirement and different motherboard thicknesses, and marking the combined marks on the combinable orders.
Description
Technical Field
The invention belongs to the technical field of information, and particularly relates to a medium plate multi-order material design optimization method based on user rules.
Background
The production of the medium plate is a process of heating a billet to a specified temperature in a heating furnace, rolling the billet to a specified thickness, width and length through a rolling mill after the billet is discharged from the furnace, and then shearing the width and the length at a shearing line to form an order delivery size.
The production process of the medium plate mainly relates to three product types, namely a plate blank (billet heated by a heating furnace), a mother plate (material formed by rolling the plate blank by a rolling mill in a one-to-one mode) and a daughter plate (delivery finished product sheared by the mother plate).
The thickness, width, length and block number requirements of the sub-boards can be known from the sales order, and the process of deducing the size and block number of the mother board, the size and block number of the plate blank based on the user rule through the sales order requirements is called material design.
The multi-order material design is a process of splicing a plurality of sub-boards on a mother board, respectively meeting delivery requirements of a plurality of sales orders, and optimally selecting the size of a slab for the mother board.
The material design has two evaluation indexes: the design method comprises the following steps that firstly, the planned yield (defined as the percentage of the difference between the planned production block number of the daughter board and the delivery block number of the daughter board divided by the delivery block number of the daughter board) is minimum, and secondly, the planned yield (defined as the percentage of the planned delivery weight of the daughter board divided by the planned feeding weight of the slab) is maximum, and the material design which can simultaneously meet the requirements of the minimum planned yield and the maximum planned yield is the optimal material design.
Disclosure of Invention
The invention aims to provide a user rule-based medium plate multi-order material design optimization method, which solves the problems of minimum multi-order plan brought yield and maximum planned yield selection calculation during medium plate material design.
A design optimization method of medium plate multi-order material based on user rules is characterized in that when the design of single-order material cannot realize the planned output of zero, or the design of single-order material is marked with multi-order combination marks according to the user rules; designing materials according to multiple orders, wherein the size of 1 mother board is calculated according to user rules for each sales order; firstly, carrying out material design on order groups with the same quality requirement, the same motherboard thickness and the same motherboard width, and marking merger marks on mergeable orders; then, carrying out material design on the order groups with the same quality requirement and the same motherboard thickness without the merged mark, and typing the merged mark on the mergeable order; finally, carrying out material design on the order groups with the same quality requirement and different motherboard thicknesses without the merged marks, and typing the merged marks on the mergeable orders;
the step of calculating the size of the 1 mother board is to calculate the rolling thickness of the 1 mother board according to the thickness of the daughter board and based on a user rule; calculating the scaling number of the width of the mother board and the width of the mother board according to the width of the daughter board based on a user rule; calculating the length of the mother board according to the length of the sales order daughter board, the number of the sales order daughter boards and the fixed-size number of the width of the mother board;
the method for grouping orders with the same quality requirement, the same mother board thickness and the same mother board width to design materials is to realize the material design problem that the planned band yield of multiple orders is zero and the planned yield is maximum through the length combination calculation of the mother boards;
the method for material design of the order groups with the same quality requirement and the same motherboard thickness without printing and marking is to realize the material design problem that the planned output yield of multiple orders is zero and the planned yield is maximum through the motherboard width combination and motherboard length combination calculation;
the method for carrying out material design on the order groups with the same quality requirement and different motherboard thicknesses without printing and marking is used for realizing the material design problem that the planned yield of multiple orders is zero and the planned yield is maximum by calculating the motherboard thickness combination, the motherboard width combination and the motherboard length combination.
The user rules of the design of the medium plate material include, but are not limited to, the following, which can be flexibly increased at any time according to the needs:
(1) thickness target value: and according to the requirement of the thickness deviation of the order, giving the target thickness of the mother plate rolled by the rolling mill.
(2) Compression ratio: the compression ratio is the ratio of the thickness of the plate blank to the thickness of the sub-plate, and medium plates of different grades have a range requirement on the compression ratio.
(3) The aspect ratio is as follows: the width-to-width ratio is the ratio of the width of the mother plate to the width of the plate blank, and medium plates of different grades have a range requirement on the width-to-width ratio.
(4) The trimming amount is as follows: the amount of edge trimming of the master is generally related to the size of the master and the size of the blank.
(5) Head and tail cutting amount: the amount of head and tail cut of the mother plate is generally related to the size of the mother plate and the size of the plate blank.
(6) Thickness range of mother board: the rolling mill can roll a range of thicknesses.
(7) Width range of mother board: the rolling mill can roll a wide range.
(8) Length range of mother board: the range of mill rollable lengths, associated with the maximum shear line length, is also relevant.
(9) Upper limit of thickness deviation of multi-order mother plate: multiple orders may incorporate the maximum thickness deviation value for the motherboard.
(10) Upper limit of deviation of width of multi-order mother board: multiple orders may incorporate maximum width deviation values for the motherboards.
(11) Length range of multi-order mother board: minimum and maximum length ranges for multiple order motherboards.
(12) Thickness of the slab: the nominal thickness of the slab is generally a plurality of fixed values.
(13) The width of the plate blank: the nominal width of the slab is generally a plurality of fixed values.
(14) And (3) blank forming of the plate blank: slab thickness possible combinations of slab width.
(15) Slab length range: the length of the slab that can be fed into the furnace.
(16) Length range of multi-order slab: minimum and maximum length ranges for multiple order slabs.
(17) The upper limit of the single weight of the plate blanks needs to be merged: the upper limit value of the single weight of the produced slabs needs to be combined.
(18) The burning loss rate: percentage of burn-out after heating of the slab.
The multi-order merging mark is an order marked as 'needing multi-order merging production' according to user rules, wherein when a single-order mother board without a product is designed, the length of the mother board is smaller than the lower limit of the length range of the mother board, or the length of a fed plate blank corresponding to the mother board is smaller than the lower limit of the length of the plate blank.
The step of calculating the size of 1 mother board is as follows:
the first step is as follows: thickness THICK of daughter board according to sales orderPLFIAnd deducing the target thickness of the rolling mother plate according to the requirement of the size deviation, wherein the target thickness of the rolling mother plate meets the thickness range rule of the mother plate, and the thickness of the mother plate is recorded as THICKPLME；
The second step is that: according to the WIDTH WIDTH of the sale order daughter boardPLFIAnd user-defined motherboard width range, calculating width sizing NUMWNUM number of width sizingW1+1 [ (daughter board width)<Lower limit of motherboard width)&&(daughter board Width. x 2)>Mother board width lower limit)&&(daughter board Width. x 2)<The upper limit of the width of the mother board]The WIDTH of the mother board is the WIDTH of the daughter board and the WIDTH of the mother board is marked as WIDTHPLMEE；
The third step: LENGTH of sub-board according to sales orderPLFIAnd number of blocks PIECESPLFICalculating LENGTH of mother board LENGTHPLME，LENGTHPLME＝CEIL(LENGTHPLFI*PIECESPLFI/NUMW)。
The order with the same quality requirement, the same motherboard thickness and the same motherboard width is grouped for material design, and the specific steps are as follows:
the first step is as follows: selecting multiple orders with the same quality grouping, the same mother board thickness and the same mother board width, and calculating the number of production orders;
the second step is that: finding out the groups with the production order quantity > 2, and calculating the sum of the lengths of the mother boards of the production orders of each group in a combined manner; the calculation method of each group is as follows: finding the sum of the lengths of the mother boards, and placing the same 'production order merging serial number' in a plurality of production orders which are within the range of the length of the merged mother board and are closest to the upper limit; if the number > of the production orders of which the production order merging sequence number is not played in the group is 2, sequentially combining and calculating the length sum of the mother boards of which the production order merging sequence number is not played, enabling the length sum of the mother boards to be within the length range of the merged mother board, and enabling the production order closest to the upper limit to play the production order merging sequence number of each mother board in the group until the length sum of the mother boards does not meet the length range of the merged mother board;
the third step: selecting the production order group marked with the production order merging serial number, and respectively carrying out the following processing on each group: according to THICKPLMEAnd selecting the possible thickness of the slab according to the compression ratio rule, and recording the thickness of the slab as THICKSLAB(ii) a According to WIDTHPLMEAnd regularly selecting the possible WIDTH of the slab according to the widening ratio, and recording the WIDTH of the slab as WIDTHSLAB(ii) a From the possible combinations of slab forms, all available slab forms are found: THICKSLAB*WIDTHSLAB(ii) a According to the principle of constant volume, calculating the slab LENGTH LENGTH of the available slab type corresponding to the size of the mother boardSLAB，LENGTHSLAB＝(THICKPLME*WIDTHPLMEE*LENGTHPLME)/(THICKSLAB*WIDTHSLAB) (ii) a Adding the trimming amount, WIDTH, to the planned WIDTH of the mother plate according to the size of each plate blank, the size of the corresponding mother plate and the trimming amount rulePLMEE＝WIDTHPLMEE+ trimming amount; adding the planned LENGTH of the mother plate to the amount of the head and the tail of the head, LENGTH, according to the size of each plate blank, the size of the corresponding mother plate and the rule of the amount of the head and the tail of the headPLMEE＝LENGTHPLMEE+ amount of head and tail; according to volumeRecalculating slab LENGTH LENGTH of available slab type corresponding to size of mother board by variable principle and burn-out rate ruleSLAB＝(THICKPLME*WIDTHPLMEE*LENGTHPLME)/(THICKSLAB*WIDTHSLABBurn out rate), retain LENGTHSLABAll values of the slab length range are satisfied, and all available slab sizes THICK corresponding to the size of the mother plate are formedSLAB*WIDTHSLAB*LENGTHSLAB(ii) a Finding out planned yield (THICK)PLFI*WIDTHPLFI*LENGTHPLFI)/(THICKSLAB*WIDTHSLAB*LENGTHSLAB) Maximum value of corresponding slab size THICKSLAB*WIDTHSLAB*LENGTHSLABThe material design result is the optimal slab size which meets the minimum planned belt yield and the maximum planned yield; and if the lengths of the available plate blanks in a certain group do not meet the requirements of the rules, canceling the production order combination serial number of the group and carrying out the next processing.
The material design is carried out on the order groups with the same quality requirement and the same motherboard thickness without printing and marking, and the steps are as follows:
the first step is as follows: selecting multiple orders without a production order merging sequence number mark, grouping the orders according to the same quality and the same motherboard thickness, and sequencing the groups according to the motherboard width from large to small;
the second step is that: for each group, selecting a multiple order with the motherboard width difference between [0 and the maximum motherboard width-multiple order motherboard width deviation upper limit ] from the maximum motherboard width, enabling the motherboard widths of the orders to be the maximum motherboard width, carrying out material design according to the order group with the same quality requirement, the same motherboard thickness and the same motherboard width by a material design method, and marking the order meeting the merging requirement with a production order merging sequence number; sequentially selecting multiple orders without a production order merging sequence number mark, selecting multiple orders with a mother board width difference between [0, maximum mother board width-multiple order mother board width deviation upper limit ] from the maximum mother board width of the production order merging sequence number mark, enabling the mother board widths of the orders to be the maximum mother board width, and carrying out material design circulation processing according to the order groups with the same quality requirement, the same mother board thickness and the same mother board width by using a material design method;
if the order which meets the requirement of the width deviation of the mother board does not exist from the maximum mother board width, the order corresponding to the maximum mother board width is abandoned, the next largest mother board width is made to be the maximum mother board width, and the circulation processing is carried out.
The method is characterized in that the material design is carried out on the order groups with the same quality requirement and different motherboard thicknesses without being printed and marked, and the method comprises the following steps:
the first step is as follows: selecting multi-order same-quality groups without marking a production order merging serial number, and sequencing the groups according to the thickness of a mother board from large to small;
the second step is that: for each group, selecting a multi-order with the difference of the thickness of the mother boards between [0, the maximum thickness of the mother board and the upper limit of the thickness deviation of the multi-order mother board ], taking the thickness of a medium-number mother board and combining the thickness of the mother boards, taking the thickness of a thicker mother board if only two orders exist, carrying out material design according to a material design method for the order group with the same quality requirement and the same thickness of the mother board without combining marks, and marking the order meeting the combining requirement with a production order combining serial number; sequentially selecting multiple orders without a production order merging sequence number mark, starting from the maximum mother board thickness without a production order merging sequence number mark order, selecting multiple orders with the mother board thickness difference between [0, the maximum mother board thickness-multiple order mother board thickness deviation upper limit ], enabling the mother board thicknesses of the orders to be the maximum mother board thickness, and carrying out material design cyclic processing according to the material design method for the orders with the same quality requirement and the same mother board thickness without a production order merging sequence number mark; if the order which meets the requirement of the thickness deviation of the mother board does not exist from the maximum thickness of the mother board, the order corresponding to the maximum thickness of the mother board is abandoned, the thickness of the next largest mother board is made to be the maximum thickness of the mother board, and the circulation processing is carried out.
The design optimization method for the medium plate multi-order material based on the user rules can meet two indexes of minimum planned brought yield and maximum planned yield to the maximum extent.
Detailed Description
Description of the drawings: all data below are assumed values.
The multiple sales order requirements that require consolidated production are as follows (assuming the quality requirements are the same):
| sales order | Thickness of sub-board | Daughter board width | Daughter board length | Number of blocks |
| Order 1 | 10 | 2800 | 9000 | 1 |
| Order 2 | 10 | 2800 | 8000 | 2 |
| Order 3 | 12 | 2800 | 9000 | 1 |
| Order 4 | 12 | 2820 | 8000 | 2 |
| Order 5 | 8 | 2800 | 9000 | 1 |
| Order 6 | 8.1 | 2810 | 8000 | 1 |
| Order 7 | 7.9 | 2800 | 9000 | 1 |
1. Order motherboard size calculation
| Sales order | Thickness of sub-board | Daughter board width | Daughter board length | Number of blocks | Thickness of mother plate | Width of mother board | Length of mother plate |
| Order 1 | 10 | 2800 | 9000 | 1 | 10 | 2800 | 9000 |
| Order 2 | 10 | 2800 | 8000 | 2 | 10 | 2800 | 16020 |
| Order 3 | 12 | 2800 | 9000 | 1 | 12 | 2800 | 9000 |
| Order 4 | 12 | 2820 | 8000 | 2 | 12 | 2820 | 16020 |
| Order 5 | 8 | 2800 | 9000 | 1 | 8 | 2800 | 9000 |
| Order 6 | 8.1 | 2810 | 8000 | 1 | 8.1 | 2810 | 8000 |
| Order 7 | 7.9 | 2800 | 9000 | 1 | 7.9 | 2800 | 9000 |
2. Multiple orders quality grouping, assuming the orders are in the same quality grouping.
3. Multi-order material design with same quality grouping, same mother board thickness and same mother board width
Only order 1 and order 2 meet the requirements, as follows:
| sales order | Thickness of sub-board | Daughter board width | Daughter board length | Number of blocks | Thickness of mother plate | Width of mother board | Length of mother plate |
| Order 1 | 10 | 2800 | 9000 | 1 | 10 | 2800 | 9000 |
| Order 2 | 10 | 2800 | 8000 | 2 | 10 | 2800 | 16020 |
The dimensions of the combined mother plate are as follows, only 180 x 1800 slab blanks meeting the compression ratio and broadening ratio requirements are available, and the calculation conditions are as follows:
| thickness of mother plate | Width of mother board | Length of mother plate | Thickness of slab | Width of the slab | Length of slab |
| 10 | 2800 | 25020 | 180 | 1800 | 2170 |
And (3) increasing the trimming amount and the head and tail trimming amount of the mother board according to the user rule, and recalculating the size of the plate blank, wherein the following table is shown:
| thickness of mother plate | Width of mother board | Length of mother plate | Thickness of slab | Width of the slab | Length of slab |
| 10 | 2880 | 26000 | 180 | 1800 | 2320 |
If the slab length satisfies the slab length range rule, the result of the material design of order 1 and order 2 is:
mother board: 10 × 2880 × 26000 production of 1 piece
Slab: 180 x 1800 x 2320 batch 1 block
Order 1 and order 2 are marked with the same production order merge flag.
4. Same quality grouping, same thickness multiple order material design
Only order 3 and order 4, with no production order merge flag, meet the requirements, as follows:
| sales order | Thickness of sub-board | Daughter board width | Daughter board length | Number of blocks | Thickness of mother plate | Width of mother board | Length of mother plate |
| Order 3 | 12 | 2800 | 9000 | 1 | 12 | 2800 | 9000 |
| Order 4 | 12 | 2820 | 8000 | 2 | 12 | 2820 | 16020 |
If the upper limit of the deviation of the width of the multi-order mother board of the user is 50, 2800 and 2820 meet the requirement of the deviation of the width of the mother board, the combined calculation merged mother board size is 12 x 2820 x 25020, only 180 x 1800 slab blanks meeting the requirements of compression ratio and broadening ratio are available, and the calculation conditions are as follows:
| thickness of mother plate | Width of mother board | Length of mother plate | Thickness of slab | Width of the slab | Length of slab |
| 12 | 2820 | 25020 | 180 | 1800 | 2620 |
And (3) increasing the trimming amount and the head and tail trimming amount of the mother board according to the user rule, and recalculating the size of the plate blank, wherein the following table is shown:
| thickness of mother plate | Width of mother board | Length of mother plate | Thickness of slab | Width of plate blank | Length of slab |
| 12 | 2900 | 26000 | 180 | 1800 | 2800 |
The slab length satisfies the slab length range rule, and the result of the order 3 and order 4 material design is:
mother board: 12 x 2900 x 26000 production of 1 piece
Slab: 180 x 1800 x 2800 batch 1 block
Order 3 and order 4 are marked with the same production order combination mark.
5. Multiple-order material design with same quality grouping and different thicknesses
Only order 5, order 6, and order 7, with no production order merge flag, meet the requirements, as follows:
| sales order | Thickness of sub-board | Daughter board width | Daughter board length | Number of blocks | Thickness of mother plate | Width of mother board | Length of mother plate |
| Order 5 | 8 | 2800 | 9000 | 1 | 8 | 2800 | 9000 |
| Order 6 | 8.1 | 2810 | 8000 | 1 | 8.1 | 2810 | 8000 |
| Order 7 | 7.9 | 2800 | 9000 | 1 | 7.9 | 2800 | 9000 |
If the upper limit of the thickness deviation of the mother board of the multiple orders of the mother boards is 0.5, 8, 8.1 and 7.9 meet the requirement of the thickness deviation of the mother boards, and the thickness of the combined mother boards is a median 8.
The following material design is carried out according to the method of 'same quality grouping and same thickness multi-order material design':
if the upper limit of deviation of the width of the multi-order motherboard of the customer is 50, 2800 and 2810 meet the requirement of deviation of the width of the motherboard, the size of the combined motherboard of the combined plan is 8 x 2810 x 26000, only the blank type of the 180 x 1800 slab meeting the requirements of the compression ratio and the broadening ratio is available, and the calculation conditions are as follows:
| thickness of mother plate | Width of mother plate | Length of mother plate | Thickness of slab | Width of the slab | Length of slab |
| 8 | 2810 | 26000 | 180 | 1800 | 1804 |
And (3) increasing the trimming amount and the head and tail trimming amount of the mother board according to the user rule, and recalculating the size of the plate blank, wherein the following table is shown:
| thickness of mother plate | Width of mother board | Length of mother plate | Thickness of slab | Width of the slab | Length of slab |
| 8 | 2900 | 27100 | 180 | 1800 | 1940 |
If the length of the slab meets the slab length range rule, the results of the material design of the order 5, the order 6 and the order 7 are as follows:
mother board: 8 x 2900 x 27100 to produce 1 block;
slab: 180 x 1800 x 1940 batch 1 block;
order 5, order 6 and order 7 are marked with the same production order combination mark.
Claims (2)
1. A design optimization method for a medium plate multi-order material based on user rules is characterized by comprising the following steps: when the design of the single order material can not realize that the planned output is zero, or the design of the single order material is finished by marking a multi-order combination mark according to the user rule; designing materials according to multiple orders, wherein the size of 1 mother board is calculated according to user rules for each sales order; firstly, carrying out material design on order groups with the same quality requirement, the same motherboard thickness and the same motherboard width, and marking merger marks on mergeable orders; then, carrying out material design on the order groups with the same quality requirement and the same motherboard thickness without the merged mark, and typing the merged mark on the mergeable order; finally, carrying out material design on the order groups with the same quality requirement and different motherboard thicknesses without the merged marks, and typing the merged marks on the mergeable orders;
the step of calculating the size of the 1 mother board is to calculate the rolling thickness of the 1 mother board according to the thickness of the daughter board and based on a user rule; calculating the scaling number of the width of the mother board and the width of the mother board according to the width of the daughter board based on a user rule; calculating the length of the mother board according to the length of the sales order daughter board, the number of the sales order daughter boards and the fixed-size number of the width of the mother board;
the method for grouping orders with the same quality requirement, the same motherboard thickness and the same motherboard width to carry out material design is to realize the material design problem that the planned yield of the multi-order is zero and the planned yield is maximum through the combined calculation of the motherboard length;
the method for material design of the order groups with the same quality requirement and the same motherboard thickness without printing and marking is to realize the material design problem that the planned output yield of multiple orders is zero and the planned yield is maximum through the motherboard width combination and motherboard length combination calculation;
the method for carrying out material design on the orders which are not printed and marked and have the same quality requirement and different motherboard thicknesses in a grouping mode is used for realizing the material design problem that the planned yield of multiple orders is zero and the planned yield is maximum through motherboard thickness combination, motherboard width combination and motherboard length combination calculation;
the order with the same quality requirement, the same motherboard thickness and the same motherboard width is grouped for material design, and the specific steps are as follows:
the first step is as follows: selecting multiple orders with the same quality grouping, the same mother board thickness and the same mother board width, and calculating the number of production orders;
the second step: finding out the groups with the production order quantity > 2, and calculating the sum of the lengths of the mother boards of the production orders of each group in a combined manner; the calculation method of each group is as follows: finding the sum of the lengths of the mother boards, and placing the same 'production order merging serial number' in a plurality of production orders which are within the range of the length of the merged mother board and are closest to the upper limit; if the number > of the production orders of which the production order merging sequence number is not played in the group is 2, sequentially combining and calculating the length sum of the mother boards of which the production order merging sequence number is not played, enabling the length sum of the mother boards to be within the length range of the merged mother board, and enabling the production order closest to the upper limit to play the production order merging sequence number of each mother board in the group until the length sum of the mother boards does not meet the length range of the merged mother board;
the third step: selecting production order groups marked with 'production order combination serial number', and respectively carrying out the following processing on each group: according to THICKPLMEAnd selecting the possible thickness of the slab according to the compression ratio rule, and recording the thickness of the slab as THICKSLAB(ii) a According to WIDTHPLMEAnd regularly selecting the possible WIDTH of the slab according to the widening ratio, and recording the WIDTH of the slab as WIDTHSLAB(ii) a From the possible combinations of slab shapes, all available slab shapes were found: THICKSLAB*WIDTHSLAB(ii) a According to the principle of constant volume, calculating the slab LENGTH LENGTH of the available slab type corresponding to the size of the mother boardSLAB，LENGTHSLAB＝(THICKPLME*WIDTHPLMEE*LENGTHPLME)/(THICKSLAB*WIDTHSLAB) (ii) a Adding the trimming amount, WIDTH, to the planned WIDTH of the mother plate according to the size of each plate blank, the size of the corresponding mother plate and the trimming amount rulePLMEE＝WIDTHPLMEE+ trimming amount; adding the amount of the head and the tail of the mother board to the planned LENGTH of the mother board, LENGTH according to the size of each board blank, the size of the corresponding mother board and the rule of the amount of the head and the tail of the head and the tail of the headPLMEE＝LENGTHPLMEE+ amount of head and tail; recalculating slab LENGTH LENGTH of available slab type corresponding to size of mother board according to volume invariant principle and burn-out rate ruleSLAB＝(THICKPLME*WIDTHPLMEE*LENGTHPLME)/(THICKSLAB*WIDTHSLABBurn out rate), leftSLABAll values of the slab length range are satisfied, and all available slab sizes THICK corresponding to the size of the mother plate are formedSLAB*WIDTHSLAB*LENGTHSLAB(ii) a Finding out planned yield (THICK)PLFI*WIDTHPLFI*LENGTHPLFI)/(THICKSLAB*WID THSLAB*LENGTHSLAB) Maximum value of corresponding slab size THICKSLAB*WIDTHSLAB*LENGTHSLABThe material design result is the optimal slab size which meets the minimum planned belt yield and the maximum planned yield; if the lengths of the available plate blanks in a certain group do not meet the requirements of the rules, canceling the production order combination serial number of the group, and performing the next processing;
the material design is carried out on the order groups with the same quality requirement and the same motherboard thickness without printing and marking, and the steps are as follows:
the first step is as follows: selecting multiple orders without a production order merging sequence number mark, grouping the orders according to the same quality and the same motherboard thickness, and sequencing the groups according to the motherboard width from large to small;
the second step is that: for each group, selecting a multiple order with the motherboard width difference between [0, the maximum motherboard width-the multiple order motherboard width deviation upper limit ] from the maximum motherboard width, enabling the motherboard widths of the orders to be the maximum motherboard width, carrying out material design according to the order groups with the same quality requirement, the same motherboard thickness and the same motherboard width by a material design method, and marking the order meeting the merging requirement with a production order merging sequence number; sequentially selecting multiple orders without a production order merging sequence number mark, selecting multiple orders with a mother board width difference between [0, maximum mother board width-multiple order mother board width deviation upper limit ] from the maximum mother board width of the production order merging sequence number mark, enabling the mother board widths of the orders to be the maximum mother board width, and carrying out material design circulation processing according to the order groups with the same quality requirement, the same mother board thickness and the same mother board width by using a material design method;
if the order which meets the requirement of the width deviation of the mother board does not exist from the maximum mother board width, discarding the order corresponding to the maximum mother board width, and making the next largest mother board width as the maximum mother board width for cyclic processing;
the material design is carried out on the order groups with the same quality requirement and different motherboard thicknesses without printing and marking, and the steps are as follows:
the first step is as follows: selecting multi-order same-quality groups without marking a production order merging serial number, and sequencing the groups according to the thickness of a mother board from large to small;
the second step is that: for each group, selecting a multi-order with the difference of the thickness of the mother boards between [0, the maximum thickness of the mother board and the upper limit of the thickness deviation of the multi-order mother board ], taking the thickness of a medium-number mother board and combining the thickness of the mother boards, taking the thickness of a thicker mother board if only two orders exist, carrying out material design according to a material design method for the order group with the same quality requirement and the same thickness of the mother board without combining marks, and marking the order meeting the combining requirement with a production order combining serial number; sequentially selecting multiple orders without a production order merging sequence number mark, starting from the maximum mother board thickness without a production order merging sequence number mark order, selecting multiple orders with the mother board thickness difference between [0, the maximum mother board thickness-multiple order mother board thickness deviation upper limit ], enabling the mother board thicknesses of the orders to be the maximum mother board thickness, and carrying out material design cyclic processing according to the material design method for the orders with the same quality requirement and the same mother board thickness without a production order merging sequence number mark; if the order meeting the requirement of the thickness deviation of the mother board does not exist from the maximum mother board thickness, discarding the order corresponding to the maximum mother board thickness, and making the next largest mother board thickness be the maximum mother board thickness for cycle processing;
the step of calculating the size of 1 mother board is as follows:
the first step is as follows: thickness THICK of daughter board according to sales orderPLFIAnd deducing the target thickness of the rolling mother plate according to the requirement of the size deviation, wherein the target thickness of the rolling mother plate meets the thickness range rule of the mother plate, and the thickness of the mother plate is recorded as THICKPLME；
The second step is that: according to the WIDTH WIDTH of the sale order daughter boardPLFIAnd user-defined motherboard width range, calculating width sizing NUMWNumber of width scales NUMW1+1 [ (daughter board width)<Lower limit of motherboard width)&&(daughter board width 2)>Mother board width lower limit)&&(daughter board Width. x 2)<The upper limit of the width of the mother board]The WIDTH of the mother board is the WIDTH of the daughter board and the WIDTH of the mother board is marked as WIDTHPLMEE；
The third step: LENGTH of sub-board according to sales orderPLFIAnd number of blocks PIECESPLFICalculating LENGTH of mother board LENGTHPLME，LENGTHPLME＝CEIL(LENGTHPLFI*PIECESPLFI/NUMW)。
2. The optimization method of claim 1, wherein: the multi-order merging mark is an order marked as 'needing multi-order merging production' according to user rules, wherein when a single-order mother board without a product is designed, the length of the mother board is smaller than the lower limit of the length range of the mother board, or the length of a fed plate blank corresponding to the mother board is smaller than the lower limit of the length of the plate blank.
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