CN101685302B - Method for calculating cold rolling material by using computer program - Google Patents
Method for calculating cold rolling material by using computer program Download PDFInfo
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- CN101685302B CN101685302B CN2008100438078A CN200810043807A CN101685302B CN 101685302 B CN101685302 B CN 101685302B CN 2008100438078 A CN2008100438078 A CN 2008100438078A CN 200810043807 A CN200810043807 A CN 200810043807A CN 101685302 B CN101685302 B CN 101685302B
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Abstract
The present invention discloses a method for calculating cold rolling material by using computer program, comprising: 1) determining the cold rolling process; 2) determining the weight scope of the corresponding material at the outlet of a finished product unit; 3) judging whether only the cold rolling process is needed, if cold rolling, hot rolling and steel making processes are needed, executing the step 4), or else, executing the step 5); 4) performing the production design circulation operation from the minimum splitting number to the maximum splitting number, according to the slab length limitation, and calculating the optimal splitting number and specification and weight scope of each material at the inlet or outlet of each processing process; and 5) performing the production design circulation operation from the maximum splitting number to the minimum splitting number, and calculating the optimal splitting number and specification and weight scope of each material at the inlet or outlet of each processing process. The invention is capable of rapidly and accurately calculating the number specification of the needed cold rolling material.
Description
Technical field
The present invention relates to a kind of method of utilizing computer program to carry out cold rolling production design, be specifically related to a kind of method of utilizing computer program to carry out calculating cold rolling material.
Background technology
At present, the calculating cold rolling material method of generally using in large-scale iron and steel system is considered the production production capacity of each operation unit to greatest extent, designs on the maximized basis of operation production capacity.This method is considered the processing restriction of demand on each procedure hardly in the process of calculating raw material specification and weight data, final design result may cause different cold rolling its result of calculations of finished product demand basic identical, and turnout generally surpasses the situation of demand.This method is applicable to the large-scale cold rolling production system that production scale is huge and stable.For middle-size and small-size cold-rolled products production system, its drawback is apparent, and design result is comparatively rough, is easy to generate no demand product, is unfavorable for the become more meticulous production and the turnover of funds of system, and has increased warehousing pressure.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method that can calculate required cold rolling material quantity specifications fast and accurately.
For solving the problems of the technologies described above, the inventive method comprises: step 1, according to the finished product demand, determine the cold rolling process of required process; Step 2, according to the capabilities limits of the corresponding unit of each operation, determine the weight range of material in finished product unit outlet; Information and material determine to cut several scopes at finished product unit outlet weight range according to demand; Step 3, only judge whether that pass through cold rolling, hot rolling, steel making working procedure if desired, then execution in step four through cold rolling process; If only pass through cold rolling process then execution in step five; Step 4, according to comprising cold rolling, hot rolling, make steel each unit capacity, each unit rate that feeds intake is cut number, in conjunction with the slab length restriction, cuts from maximum and to count to minimum and cut number, carries out cold rolling production design cycle operation successively; Release slab weight, length, the material of optimum and cut number through gateway weight range, the recommendation cold coiling of each operation; Execution in step six then; Step 5, according to cold rolling each unit capacity, each unit rate that feeds intake is cut number, cuts from maximum and counts to minimum and cut number, carries out the operation of production design cycle; Release hot rolled coil weight, the material of optimum and cut number through gateway weight range, the recommendation cold coiling of each operation; Execution in step six then; Step 6, the cold rolling demand slab specification of output, the material designing and calculating finishes.
Beneficial effect of the present invention is: the present invention compares the current material method for designing, fully takes into account the restriction for unit productive capacity, on the material design level, has just reduced the generation of surplus material significantly, and has satisfied and produce maximized requirement.Because the raw material slab must could carry out processing as cold rolling unit raw material through hot rolling, the cold rolling material designing technique has also just contained the material design function of hot-rolled process simultaneously.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the simple flow chart of the embodiment of the invention;
Fig. 2 is the detail flowchart of the embodiment of the invention.
Embodiment
Present embodiment is that example describes with the cold rolling product line of certain system.Requirement specification according to cold-rolled products, information such as weight, in conjunction with producing each operation unit capacity actual conditions, particular restriction, on the basis that takes into full account average and the special rate that feeds intake, calculate the weight and the specification interval of optimum cold coiling raw material (slab or hot rolled coil), material is cut number through the Weight control scope and the recommendation cold coiling of each production process, finally finish by demand data to whole process production, comprehensive conversion of quality control data, guarantee by matter, finish according to quantity, for whole metallurgical the manufacturing carried out data preparation and the strong support that the management system system provides the basis.This technology can cover straight hair volume and the production design function of cutting different cold-rolled products such as rouleau, takes into full account simultaneously to have versatility and configurability on implementation method, makes this technology can be applied to comparatively easily in the different cold rolling systems.
The inventive method comprises the steps: as shown in Figure 1
Step 2, according to the capabilities limits of the corresponding unit of each operation, determine the weight range of material in finished product unit outlet; Information and material determine to cut several scopes at finished product unit outlet weight range according to demand;
Step 3, only judge whether that pass through cold rolling, hot rolling, steel making working procedure if desired, then execution in step four through cold rolling process; If only pass through cold rolling process then execution in step five;
Step 4, according to comprising cold rolling, hot rolling, make steel each unit capacity, each unit rate that feeds intake is cut number, in conjunction with the slab length restriction, cuts from maximum and to count to minimum and cut number, carries out cold rolling production design cycle operation successively; Release slab weight, length, the material of optimum and cut number through gateway weight range, the recommendation cold coiling of each operation; Execution in step six then;
Step 5, according to cold rolling each unit capacity, each unit rate that feeds intake is cut number, cuts from maximum and counts to minimum and cut number, carries out the operation of production design cycle; Release hot rolled coil weight, the material of optimum and cut number through gateway weight range, the recommendation cold coiling of each operation; Execution in step six then;
Step 6, the cold rolling demand slab specification of output, the material designing and calculating finishes.
As shown in Figure 2, more detailed steps is as follows for present embodiment:
1. demand is according to demand calculated each operation that will pass through in this production run
2. in conjunction with current slab length initial value information such as (annotating 1), each procedure to this demand process (comprises hot rolling, steel-making) after unit capacity was converted to product outlet by each unit lumber recovery, getting occurs simultaneously determined the maximum weight and the minimum weight of cold rolling finished product unit export capability; Be unit max and unit _ min.
3. demand substance according to demand, and unit _ max and unit _ min determine to cut several scopes.If maximum is cut number smaller or equal to 0, material calculates failure; If maximum is cut number and cut number less than minimum, material calculates failure.
4. carry out to cut and count to minimum and cut several following cyclings from maximum:
Step 1: the scope of demand substance multiply by the current several i (annotate 2) that cut and obtains weight range, is volume weight _ max and rolls up weight _ min, gets common factor with the unit _ max and the unit _ min of cold rolling unit capacity
If occur simultaneously to exist, weight range is designated as _ max and _ min
Do not exist if occur simultaneously, the current number of cutting adds 1, and j (annotating 3) value is constant, execution in step 9
Step 2: judge that whether max is more than or equal to min
If satisfy, then execution in step 3
Do not satisfy, the current number of cutting adds 1, and the j value is constant, execution in step 9
Step 3: judge whether this demand is that tin plate demand demand (annotating 4) is (according to certain system's production actual conditions, the finished product unit of tin plate-crosscut unit limit of power value does not have lower limit, during the material output that need not consider to design, material weight is lower than the unit capacity lower limit, i.e. execution in step 4 not, step 5)
If satisfy, then execution in step 6
Do not satisfy, then execution in step 4
Step 4: judge max divided by the current number of cutting whether more than or equal to the lower weight limit of product outlet
If satisfy, then execution in step 5
Do not satisfy, the current number of cutting adds 1, and the j value is constant, execution in step 9
Step 5: judge min divided by the current number of cutting whether more than or equal to the lower weight limit of product outlet
If satisfy, then execution in step 6
Do not satisfy, min is modified to the product outlet lower weight limit and multiply by the current number of cutting, and continues execution in step 6
Step 6:max and min from back to front, release slab weight max and min by the lumber recovery through unit from the finished product operation always, and calculate slab length
Step 7: get the slab length that calculates and the length range under the present material compute type j and get common factor
Exist if occur simultaneously, then execution in step 8
Do not exist if occur simultaneously, the current number of cutting adds 1, and the j value is constant, execution in step 9
Step 8: judge that whether slab length difference that slab weight converts out is less than 200mm (annotating 5)
If do not satisfy, then execution in step 10
If satisfy, the current number of cutting adds 1, and the j value is constant, execution in step 9
Step 9: judge whether the current number of cutting cuts number greater than maximum
If satisfy, judge the material compute type marks whether to be 0
If be 0, material compute type mark j puts 1 (this moment, slab length was the material calculating failure of 8000mm-9500mm, was 7000-7250mm material calculating again by slab length), and the current number of cutting is changed to maximum, carries out cycling, re-executes step 1
If be 1, material calculate failure (this moment as calculated all under 2 segment length cut several material designs, all situation material designs all finish)
If do not satisfy, carry out cycling, re-execute step 1
Step 10: export cold rolling demand slab specification, material calculates and finishes.
Need to prove in addition:
1) be example with certain system's production actual conditions, the raw material slab length of cold rolling demand correspondence is 2 sections (are example with 8000-9500mm and 7000-7250mm).During design, consider earlier long slab (8000-9500mm), if a certainly cut several materials down and calculate and finish, then the material of this demand calculates and finishes; If all under this length (8000-9500mm) are cut several materials and calculated failure, then the material that is (7000-7250mm) with identical flow performing slab length again calculates.If all under this length (7000-7250mm) are cut several materials and calculated all failures, then this material calculates failure
2) maximum is cut number=FLOOR (unit _ max/ demand substance lower limit), and when the demand substance was 0, demand substance lower limit was changed to 1
Minimum is cut number=CEIL (unit _ min/ demand substance upper limit)
FLOOR function: round;
CEIL function: when the result is integer, round numerical value; During non-integer, get smallest positive integral as a result greater than this number
Currently cut several i and cut number more than or equal to minimum, cut number smaller or equal to maximum, current to cut several initial values be that minimum is cut number
3) material compute type mark is designated as j:
J is 0, and expression is carried out slab length and calculated for the 8000-9500mm material
J is 1, and expression is carried out slab length and calculated for the 7000-7250mm material
The initial value of j is 0
4) certain demand is a certain cuts that several down if the material weight maximal value of design is less than finished product unit capacity lower limit, and then this cuts several material weight design failures (can not produce during this material weight actual production) down, cuts severally+1, recomputates; If the material weight minimum value is less than finished product unit capacity lower limit, then this material weight lower limit of cutting under several continues design by finished product unit capacity lower limit
Capacity of equipment during 5) according to the actual production of certain system, the length requirement of setting slab are that the difference of slab length maximal value and minimum value is more than or equal to 200mm
Present technique with the above each concrete numerical value, with the storage of static data form, can be revised according to different system production actual conditions in implementation procedure, does not influence specific algorithm, has strengthened the versatility and the adaptability of present technique.The present invention is not limited to embodiment discussed above.More than the description of embodiment is intended in order to describe and illustrate the technical scheme that the present invention relates to.This is not described should or limit protection scope of the present invention as limit.Based on the conspicuous conversion of the present invention enlightenment or substitute and also should be considered to fall into protection scope of the present invention.Above embodiment is used for disclosing best implementation method of the present invention, so that those of ordinary skill in the art can use numerous embodiments of the present invention and multiple alternative reaches purpose of the present invention.
Claims (1)
1. a method of utilizing computer program to carry out calculating cold rolling material is characterized in that, comprising:
Step 1, according to the finished product demand, determine the cold rolling process of required process;
Step 2, according to the capabilities limits of the corresponding unit of each operation, determine the weight range of material in finished product unit outlet; Information and material determine to cut several scopes at finished product unit outlet weight range according to demand;
Step 3, only judge whether that pass through cold rolling, hot rolling, steel making working procedure if desired, then execution in step four through cold rolling process; If only pass through cold rolling process then execution in step five;
Step 4, according to comprising cold rolling, hot rolling, make steel each unit capacity, each unit rate that feeds intake is cut number, in conjunction with the slab length restriction, cuts from maximum and to count to minimum and cut number, carries out cold rolling production design cycle operation successively; Release slab weight, length, the material of optimum and cut number through gateway weight range, the recommendation cold coiling of each operation; Execution in step six then;
Step 5, according to cold rolling each unit capacity, each unit rate that feeds intake is cut number, cuts from maximum and counts to minimum and cut number, carries out the operation of production design cycle; Release hot rolled coil weight, the material of optimum and cut number through gateway weight range, the recommendation cold coiling of each operation; Execution in step six then;
Step 6, the cold rolling demand slab specification of output, the material designing and calculating finishes;
Cut from maximum in step 4, the step 5 and count to minimum and cut number, carry out cold rolling production design cycle operation successively and comprise:
Step 1: the scope of demand substance multiply by current several i acquisition weight ranges of cutting, be volume weight _ max and volume weight _ min, get common factor with the unit _ max and the unit _ min of cold rolling unit capacity, exist if occur simultaneously, weight range is designated as max and min, does not exist if occur simultaneously, and the current number of cutting adds 1, the j value is constant, execution in step 7;
Step 2: whether judge max more than or equal to min, if satisfy, then execution in step 3, do not satisfy, and the current number of cutting adds 1, and the j value is constant, execution in step 7;
Step 3: judge max divided by the current number of cutting whether more than or equal to the lower weight limit of product outlet, if satisfy, then execution in step 4, do not satisfy, the current number of cutting adds 1, the j value is constant, execution in step 7;
Step 4: judge min divided by the current number of cutting whether more than or equal to the lower weight limit of product outlet, if satisfy, then execution in step 5, do not satisfy, min is modified to the product outlet lower weight limit and multiply by the current number of cutting, and continues execution in step 5;
Step 5:max and min are from the finished product operation, and from back to front, the lumber recovery by through unit obtains slab weight max and min divided by lumber recovery respectively with max and min always, and calculate slab length;
Step 6: get the slab length that calculates and the length range under the present material compute type mark j and get common factor, do not exist if occur simultaneously, the current number of cutting adds 1, and the j value is constant, execution in step 7;
Step 7: judge whether the current number of cutting cuts number greater than maximum,, judge the material compute type marks whether to be 0 if satisfy, if be 0, material compute type mark j puts 1, and the current number of cutting is changed to minimum and cuts number, carries out cycling, re-execute step 1, if be 1, material calculates failure, if do not satisfy, carry out cycling, re-execute step 1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102004445B (en) * | 2010-11-23 | 2012-06-13 | 苏州有色金属研究院有限公司 | Efficient adaptive method for mathematical model of aluminum cold rolling mill |
| CN103521517B (en) * | 2013-10-30 | 2015-09-16 | 武汉钢铁(集团)公司 | A kind of determination method and system of hot-rolled process parameter |
| CN107626734B (en) * | 2017-10-10 | 2019-08-13 | 广西柳州银海铝业股份有限公司 | The slab ingot of aluminum alloy hot rolling volume feeds intake specification optimal control method |
| CN108490841B (en) * | 2018-04-28 | 2020-01-10 | 四川隧唐科技股份有限公司 | Beam piece production process updating method, device, management system and storage medium |
| CN108445856B (en) * | 2018-04-28 | 2020-02-21 | 四川隧唐科技股份有限公司 | Beam piece production process monitoring method, device, management system and storage medium |
| CN109559026B (en) * | 2018-11-19 | 2022-12-02 | 冶金自动化研究设计院 | Method for recording spatio-temporal information in steel production process |
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| EP0036852A1 (en) * | 1980-03-20 | 1981-09-30 | VOEST-ALPINE Aktiengesellschaft | Method of dividing stock materials |
| CN101097441A (en) * | 2006-06-27 | 2008-01-02 | 宝山钢铁股份有限公司 | On-line optimizing shearing method of roller milling large plate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0036852A1 (en) * | 1980-03-20 | 1981-09-30 | VOEST-ALPINE Aktiengesellschaft | Method of dividing stock materials |
| CN101097441A (en) * | 2006-06-27 | 2008-01-02 | 宝山钢铁股份有限公司 | On-line optimizing shearing method of roller milling large plate |
Non-Patent Citations (2)
| Title |
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| JP平3-165901A 1991.07.17 |
| JP特开平10-5834A 1998.01.13 |
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