CN106270435B - Reduce the wide method with cutting optimization of tune that the wide base of sheet billet continuous casting tune cuts damage - Google Patents
Reduce the wide method with cutting optimization of tune that the wide base of sheet billet continuous casting tune cuts damage Download PDFInfo
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Abstract
The present invention relates to a kind of method for the tune width and cutting optimization for reducing the wide base cutting loss of sheet billet continuous casting tune, the described method comprises the following steps：1）Determine to need to adjust wide width of plate slab in production；2）Selection is distinguished using the wide type of tune；3）After adjusting wide type selection, primary Calculation starts to adjust wide point；4）Gather this and adjust wide tune width base estimated length, if it is LAdjust wide base length；5）, according to step 2）In three kinds adjust wide types, utilize step 3）In the L that goes out of primary CalculationWide point is adjusted in planAnd LWide base length is adjusted,The wide point of tune of difference and the optimum organization Setting pattern of cut point are taken respectively, realize the purpose of slab cutting quantity minimum.
Description
Technical field
The present invention relates to a kind of wide method with cutting optimization of tune for reducing the wide base of sheet billet continuous casting tune and cutting damage, belong to steel smelting
Sheet billet continuous casting on-line width adjustment technical field in gold.
Background technology
The width of plate slab size that steel mill's sheet billet continuous casting is produced, is in accordance with the setting to online crystallizer width
Come the width dimensions of slab that determine to produce.The on-line width adjustment technology of slab caster, is exactly without stopping producing
In the case of, by changing the width dimensions of crystallizer online, so that the width of plate slab dimensions that on-line tuning is produced.
In current sheet billet continuous casting production process, due to the personalization of customer requirement and the uncertainty of production process, it is often necessary to
Change the width specifications size of slab.Steel mill reduces downtime and economizes on resources, reduce energy consumption in order not to influence production yields
And ton steel cost, crystallizer on-line width modulation technology is generally all employed, so the technology of crystallizer on-line width modulation is in all steel mills
It is obtained for extensive utilization.
Due to producing the needs of products of different specifications, the scope of on-line width adjustment can be from several millimeters until hundreds of millis
Rice.In all width adjusting plate bases produced, its width of plate slab is all in consecutive variations.And follow-up rolling mill practice and client
It is slab of the width range in the range of certain size then to require.For this reason, each steel mill all exceedes width before and after width adjusting plate base
The slab of prescribed limit takes longitudinally cutting method and adjusts change width part in wide base to cut off, to control slab length direction
Width all within critical field.But if not being accurately controlled the optimization adjusted wide starting point and combine slab cutting,
It will easily lead to adjust wide slab to need largely to cut the metal for not meeting part, causing slab cutting of its change width
Loss.It is as shown below, certain slab specification for needing for slab specification to be adjusted to 1200mm from 1250mm of certain steel mill's continuous casting.Its
The slab specification width range deviation of customer requirement is no more than 30mm.According to present width adjusting method, directly needing to plan
It is wide to 1200mm from 1250mm tune on the first block of slab changed.Since the size of this block slab customer demand is 1200mm, need
The deviation range asked is≤30mm.And this block slab that actual production comes out is wider than the influence of journey, developed width deviation due to adjusting
In 50mm.Have to take longitudinally cutting method in actual production to cut off width segments unnecessary in width adjusting plate base.So
The metal loss of slab cutting is not only caused, equally also to waste substantial amounts of manpower and materials.Therefore, urgent need is a kind of new
Technical solution solve above-mentioned technical problem.
The content of the invention
The present invention is exactly to be directed to technical problem existing in the prior art, proposes that a kind of wide base of sheet billet continuous casting tune that reduces cuts damage
Tune is wide and the method for cutting optimization, the technical solution according to minimum cutting loss principle, according to actual different tune width model
Enclose, take different methods to determine to adjust wide starting point and slab cut point optimum organization method.
To achieve these goals, technical scheme is as follows, a kind of tune for reducing the wide base of sheet billet continuous casting tune and cutting damage
Wide and cutting optimization method, it is characterised in that the described method comprises the following steps：
1）Determine to need to adjust wide width of plate slab in production；
2）Selection is distinguished using the wide type of tune according to following principle；
If the width of plate slab dimensional discrepancy maximum of client or next procedure clear stipulaties is Amm, it is necessary to adjust wide amount
For value range 20mm -50mm of Xmm, at present A, will adjust wide scope X points is three types, and type one is X≤A, type two is
A<X≤2A, type three are X ＞ 2A；
3）After adjusting wide type selection, when production specification needs to change, continuous casting scene, which is connected to task scheduling, needs tune wide
When, primary Calculation starts to adjust wide point in accordance with the following methods：The collection remaining streamline slab length that just cutting terminates, if it is
LResidue length, and the aggregate-value of acquisition and recording streamline slab length at that time, if it is LCumulative length, according to known production online at present
Hot base cut lengths LScale,Integer block number Cut Stratagem is taken, if it is N that it, which also needs to the slab block number of cutting, if N*LScaleIt is worth and is
L, and allow L to be more than LResidue lengthIf L-LResidue lengthValue be LWait length,, then start to adjust wide streamline cumulative length value LWide point is adjusted in plan=LCumulative length
+LWait length；If N+1 block slabs are to need to adjust wide slab, nth block slab adjusts last block slab before width for plan；
4）Gather this and adjust wide tune width base estimated length, if it is LAdjust wide base length；
5）, according to step 2）In three kinds adjust wide types, utilize step 3）In the L that goes out of primary CalculationWide point is adjusted in planWith
LWide base length is adjusted,The wide point of tune of difference and the optimum organization Setting pattern of cut point are taken respectively, realize slab cutting quantity minimum
Purpose.
As a modification of the present invention, type one is that the tune of X≤A is wide and cutting optimum organization specific method is as follows,
The wide previous piece of latter half of completion of slab in plan of tune that breadth adjusting quantity changes from small to big, i.e., complete in nth block slab, adjust
Width plan point is LWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；Breadth adjusting quantity to small tune is wide on the head of plan slab from starting greatly
Shi Jinhang tune is wide, and it is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length.Size, which just complies fully with, since N+1 block slabs is planned to
Ask.And nth block slab still conforms to require since its change width scope is not above A, it is not necessary to carry out any longitudinally cutting
Flow.Due to X≤A, which is of the required size, so need not carry out longitudinally cutting.
As a modification of the present invention, type two is A<The tune of X≤2A is wide and cutting optimum organization specific method is as follows,
01）In nth block slab, i.e. plan needs to adjust previous block of wide slab, and latter half of to adjust width, tune wide scope is A, is adjusted wide
Plan point is LWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；
02）To prevent the fluctuation of Streamline traced value, ensure that slab length meets contract requirement, the reserved transition 1m in centre；
03）Adjust width again on the head of N+1 block slabs, i.e. plan needs to adjust wide slab, and tune wide scope is X-Amm, adjusts
Width plan point is LWide point is adjusted in plan=LCumulative length+LWait length+ 1 meter；
04）Slab segmentation is carried out when cutting in the middle part of transition region.Starting point width adjusting method and cutting according to optimization
Method, width adjusting plate base within this range, since breadth adjusting quantity is distributed on front and rear two boards base, and front and rear two boards base
Change width scope is all controlled within defined A scopes, so adjusting wide and cutting in this way, it is not necessary to carry out adjusting again wide
Slab it is longitudinally cutting, so as to reduce due to the longitudinally cutting metal loss brought.
As a modification of the present invention, type three is that the tune of X ＞ 2A is wide and cutting optimum organization specific method is as follows,
11）What breadth adjusting quantity changed from small to big adjusts wide and descending tune width all to start to adjust in previous piece of slab afterbody of plan
Width, i.e., start in nth block slab afterbody, and it is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length；
12）Optimizing incision, one piece of short scale as wide base length is adjusted, the wide model of this type tune are cut adjusting width position
Enclose very big, it is solution optimal at present that taking, which will adjust wide base integrally to cut off,.
Relative to the prior art, the invention has the advantages that：Be embodied as according to two method tune of type it is wide and cutting,
The longitudinally cutting of width adjusting plate base need not be carried out again, so as to reduce due to the longitudinally cutting metal loss brought（Cut damage）.Press
According to the tune of type three is wide and cutting optimization in this way, the slab that wide change width overrun can will be adjusted excellent in cutting
Most short slab base is turned to, reduces cutting loss to greatest extent.From the point of view of current technology, this programme passes through for different tune
Wide type, combination is classified according to change width demand, and proposes several most rational tune width and cutting optimum organization
Method.Since width adjusting plate base is there are change width, in order to meet lower procedure or customer demand,（Change width must be controlled
System is within the specific limits）, being according to pervious technical solution can only be by the position of offline cutting slab change width, so that full
Sufficient width requirement.It will certainly so cause to produce many leftover pieces（Cut damage）Loss.Two conticasters of plum steel steel mill are averaged
The wide base quantity of tune monthly reaches 800 polyliths, does not take this optimizing disposition technology in the past, and average every piece is adjusted wide base to need to cut
Leftover pieces（Cut damage）Reach 1.5 tons.Carry out adjusting wide and cutting optimization according to this optimization method, average every block of slab, which can be reduced, to be cut
About 0.5 ton of loss is cut, monthly reduces and adjusts longitudinally cutting about 400 tons of the damage of wide base, its economic benefit is extremely considerable.
Brief description of the drawings
Fig. 1 is that tune wide scope is A<The wide starting point of X≤2Amm tune and slot schematic diagram；
Fig. 2 is that tune wide scope is the wide starting point of breadth adjusting quantity X ＞ 2A tune and slot schematic diagram；
Fig. 3 adjusts wide starting point and slot schematic diagram for application implementation 2；
Fig. 4 is the whole technical solution flow chart of the present invention.
Embodiment
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 4, a kind of wide method with cutting optimization of tune for reducing the wide base of sheet billet continuous casting tune and cutting damage is described
Method comprises the following steps：
1）Determine to need to adjust wide width of plate slab in production；
2）Selection is distinguished using the wide type of tune according to following principle；
If the width of plate slab dimensional discrepancy maximum of client or next procedure clear stipulaties is Amm, it is necessary to adjust wide amount
For value range 20mm -50mm of Xmm, at present A, will adjust wide scope X points is three types, and type one is X≤A, type two is
A<X≤2A, type three are X ＞ 2A；
3）After adjusting wide type selection, when production specification needs to change, continuous casting scene, which is connected to task scheduling, needs tune wide
When, primary Calculation starts to adjust wide point in accordance with the following methods：The collection remaining streamline slab length that just cutting terminates, if it is
LResidue length, and the aggregate-value of acquisition and recording streamline slab length at that time, if it is LCumulative lengthAccording to known production online at present
Hot base cut lengths LScale,Integer block number Cut Stratagem is taken, if it is N that it, which also needs to the slab block number of cutting, if N*LScaleIt is worth and is
L, and allow L to be more than LResidue lengthIf L-LResidue lengthValue be LWait length,, then start to adjust wide streamline cumulative length value LWide point is adjusted in plan=LCumulative length
+LWait length；If N+1 block slabs are to need to adjust wide slab, nth block slab adjusts last block slab before width for plan；
4）Gather this and adjust wide tune width base estimated length, if it is LAdjust wide base length；
5）, according to step 2）In three kinds adjust wide types, utilize step 3）In the L that goes out of primary CalculationWide point is adjusted in planWith
LWide base length is adjusted,The wide point of tune of difference and the optimum organization Setting pattern of cut point are taken respectively, realize slab cutting quantity minimum
Purpose.
As a modification of the present invention, type one is that the tune of X≤A is wide and cutting optimum organization specific method is as follows,
The wide previous piece of latter half of completion of slab in plan of tune that breadth adjusting quantity changes from small to big, i.e., complete in nth block slab, adjust
Width plan point is LWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；Breadth adjusting quantity to small tune is wide on the head of plan slab from starting greatly
Shi Jinhang tune is wide, and it is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length.Size, which just complies fully with, since N+1 block slabs is planned to
Ask.And nth block slab still conforms to require since its change width scope is not above A, it is not necessary to carry out any longitudinally cutting
Flow.Due to X≤A, which is of the required size, so need not carry out longitudinally cutting.
As a modification of the present invention, type two is A<The tune of X≤2A is wide and cutting optimum organization specific method is as follows,
01）In nth block slab, i.e. plan needs to adjust previous block of wide slab, and latter half of to adjust width, tune wide scope is A, is adjusted wide
Plan point is LWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；
02）To prevent the fluctuation of Streamline traced value, ensure that slab length meets contract requirement, the reserved transition 1m in centre；In
Between transition 1m；
03）Adjust width again on the head of N+1 block slabs, i.e. plan needs to adjust wide slab, and tune wide scope is X-Amm, adjusts
Width plan point is LWide point is adjusted in plan=LCumulative length+LWait length+ 1 meter；
04）Slab segmentation is carried out when cutting in the middle part of transition region, referring specifically to Fig. 1, dotted line position is joint-cutting in figure,
According to the starting point width adjusting method and cutting method of optimization, width adjusting plate base within this range, before breadth adjusting quantity is distributed in
Afterwards on two boards base, and the change width scope of front and rear two boards base is all controlled within defined A scopes, so according to this
Method tune is wide and cuts, it is not necessary to the longitudinally cutting of width adjusting plate base is carried out again, so as to reduce due to the longitudinally cutting gold brought
Belong to loss.
As a modification of the present invention, type three is that the tune of X ＞ 2A is wide and cutting optimum organization specific method is as follows,
01）What breadth adjusting quantity changed from small to big adjusts wide and descending tune width all to start to adjust in previous piece of slab afterbody of plan
Width, i.e., start in nth block slab afterbody, and it is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length；
02）Optimizing incision, is adjusting width position to cut one piece of short scale as wide base length is adjusted, referring specifically to Fig. 2, figure
Middle dotted line position is joint-cutting, and this type tune wide scope is very big, and it is solution party optimal at present that taking, which will adjust wide base integrally to cut off,
Case.
Application example 1
Certain steel mill's conticaster is producing the slab that width is 1200mm, follow-up because the change of contract is with greater need for wide by slab
Degree on-line width adjustment is 1220mm.The maximum no more than 30mm i.e. A values of stand out are 30mm before and after learning slab as defined in the steel mill,
Then carry out adjusting wide point and cut point optimum organization as follows according to this method：
1）Determine to need to adjust wide width of plate slab in production；I.e. collection in worksite confirms that it is 1220mm to need to adjust wide width；
2）According to wide Type division is adjusted, A values are 30mm, and tune wide scope is 20mm, i.e., X values are 20mm, tune width type choosing
It is selected as adjusting wide one tune width type, type one is X≤A；
3）Collection in worksite is to just terminating remaining streamline slab length LResidue lengthFor 45 meters, record streamline slab length at that time
Aggregate-value LCumulative lengthFor 300 meters.The contract slab scale that system issues is 8 meters.Integer block number Cut Stratagem is taken, if it is also needed
The slab block number to be cut is that N is that 6,6*8=48 are more than 45 meters, i.e. N*LScaleL values are 48 meters, and allow L（48 meters）More than LResidue length
（45 meters）.Value LWait length,It is then 48-45=3 meter.Then the 7th block of slab is plan width adjusting plate base i.e. N+1 blocks slab according to schedule,
6th block of slab adjusts last block slab, that is, nth block slab before width for plan.
4）Gather this and adjust wide tune width base estimated length, if it is LAdjust wide base length=1.5 meters；
5）Scene is according to the tune of X≤A is wide and the combined method of the cutting wide type of optimum organization tune：Breadth adjusting quantity changes from small to big
The wide previous piece of latter half of completion of slab in plan of tune, i.e., completed in the 6th block of slab, it is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length
+LWait length-LAdjust wide base length；
01）In the 6th block of slab（Plan needs to adjust previous block of wide slab）Latter half of to adjust width, tune wide scope is 20mm, is adjusted
Width plan point is LWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；=300 meters+3 meters -1.5 meters=301.5 meters.
02）Start to adjust width when pursuit gain reaches 301.5 meters；
03）Due to adjusting wide scope to be less than 30mm, this slab belongs to normal range (NR) slab, it is not necessary to offline cleaning；
Application example 2：
Certain steel mill's conticaster is producing the slab that width is 1200mm, follow-up because the change of contract is with greater need for wide by slab
Degree on-line width adjustment is 1250mm.The maximum no more than 30mm i.e. A values of stand out are 30mm before and after learning slab as defined in the steel mill,
Then carry out adjusting wide point and cut point optimum organization as follows according to this method：
1）Determine to need to adjust wide width of plate slab in production；I.e. collection in worksite confirms that it is 1250mm to need to adjust wide width；
2）According to wide Type division is adjusted, A values are 30mm, and tune wide scope is 50mm, i.e., X values are 50mm, tune width type choosing
It is selected as adjusting wide two tune width type, type two is A<X≤2A；
3）Collection in worksite is to just terminating remaining streamline slab length LResidue lengthFor 45 meters, record streamline slab length at that time
Aggregate-value LCumulative lengthFor 300 meters.The contract slab scale that system issues is 8 meters.Integer block number Cut Stratagem is taken, if it is also needed
The slab block number to be cut is that N is that 6,6*8=48 are more than 45 meters, i.e. N*LScaleL values are 48 meters, and allow L（48 meters）More than LResidue length
（45 meters）.Value LWait length,It is then 48-45=3 meter.Then the 7th block of slab is plan width adjusting plate base i.e. N+1 blocks slab according to schedule,
6th block of slab adjusts last block slab, that is, nth block slab before width for plan.
4）It is 2 meters to gather this and adjust the wide wide base estimated length of tune, i.e. LAdjust wide base length=2m；
5）Scene is according to according to A<The tune of X≤2A is wide and cuts the combined method of the wide type of optimum organization tune：
01）In the 6th block of slab（Plan needs to adjust previous block of wide slab）Latter half of to adjust width, tune wide scope is 30mm, is adjusted
Width plan point is LWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；=300 meters+3 meters -2 meters=301 meters.
02）In the 7th block of slab（Plan needs to adjust wide slab）Head adjust width again, adjust the wide scope to be（X-A) mm is
20mm.It is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length+ 1 meter=300 meters+3 meters+1 meter=304 meters.
03）Slab segmentation is carried out when on-site cutting in the middle part of transition region, referring to Fig. 3, figure below dotted line illustrated position is
Joint-cutting；
According to the starting point width adjusting method and cutting method of optimization, width adjusting plate base within this range, due to by breadth adjusting quantity
Be distributed on front and rear two boards base, and the change width scope of front and rear two boards base all control defined 30mm scopes with
It is interior.So wide and cutting is adjusted in this way, it is not necessary to the longitudinally cutting of width adjusting plate base is carried out again, so as to reduce due to longitudinal direction
The metal loss that cutting belt is come.
Application example 3
Certain steel mill's conticaster is producing the slab that width is 1100mm, follow-up because the change of contract is with greater need for wide by slab
Degree on-line width adjustment is 1230mm.Stand out is maximum no more than 30mm before and after learning slab as defined in the steel mill（That is A values are
30mm）, then carry out adjusting wide point and cut point optimum organization as follows according to this method：
1）Determine to need to adjust wide width of plate slab in production；I.e. collection in worksite confirms that it is 1230mm to need to adjust wide width.
2）According to wide Type division is adjusted, A values are 30mm, and tune wide scope is 130mm, i.e., X values are 130mm.The tune width class
The tune width type of type selected as tune wide three, type three are X ＞ 2A；
3）Collection in worksite is to just terminating remaining streamline slab length LResidue lengthFor 45 meters, record streamline slab length at that time
Aggregate-value LCumulative lengthFor 300 meters.The contract slab scale that system issues is 8 meters.Integer block number Cut Stratagem is taken, if it is also needed
The slab block number to be cut is that N is that 6,6*8=48 are more than 45 meters, i.e. N*LScaleL values are 48 meters, and allow L（48 meters）More than LResidue length
（45 meters）.Value LWait length,It is then 48-45=3 meter.
4）Collection in worksite is 4.5 meters to wide base length is adjusted, i.e. LAdjust wide base length=4.5 meters；
5）Scene is specific as follows according to the tune according to X ＞ 2A is wide and the combined method of the cutting wide type of optimum organization tune,
01）Scene according to the wide type optimization method of tune in the wide previous block of plate in plan of tune that changes from small to big of breadth adjusting quantity
Base afterbody starts to adjust width, i.e., in nth block slab（6th piece）Complete.It is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length=300 meters+
3 meters=303 meters.
02）Optimizing incision, one piece of short scale is cut adjusting wide beginning and end position（4.5 rice）, it is ascending referring to Fig. 2
Direction, on-site cutting when cut according to direction ascending in Fig. 2, and dotted line illustrated position is joint-cutting.
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the scope that the claims in the present invention are protected.
Claims (4)
- A kind of 1. wide method with cutting optimization of tune for reducing the wide base of sheet billet continuous casting tune and cutting damage, it is characterised in that the method bag Include following steps：1）Determine to need to adjust wide width of plate slab in production；2）Selection is distinguished using the wide type of tune；If the width of plate slab dimensional discrepancy maximum of client or next procedure clear stipulaties is Amm, it is necessary to adjust the wide amount to be Value range 20mm -50mm of Xmm, at present A, will adjust wide scope X points is three types, and type one is X≤A, type two is A< X≤2A, type three are X ＞ 2A；3）After adjusting wide type selection, when production specification needs to change, and continuous casting scene needs to adjust wide, in accordance with the following methods just Step calculating starts to adjust wide point：The collection remaining streamline slab length that just cutting terminates, if it is LResidue length, and acquisition and recording was at that time The aggregate-value of streamline slab length, if it is LCumulative length, set the hot base cut lengths L of current online productionScale,Take integer block Number Cut Stratagem, if it is N that it, which also needs to the slab block number of cutting, if N*LScaleIt is worth for L, and allows L to be more than LResidue lengthIf L-LResidue length Value be LWait length, then start to adjust wide streamline cumulative length value LWide point is adjusted in plan=LCumulative length+LWait length；If N+1 blocks slab is needs Wide slab is adjusted, nth block slab adjusts last block slab before width for plan；4）Gather this and adjust wide tune width base estimated length, if it is LAdjust wide base length；5）, according to step 2）In three kinds adjust wide types, utilize step 3）In the L that goes out of primary CalculationWide point is adjusted in planAnd LWide base length is adjusted,Point The wide point of tune of difference and the optimum organization Setting pattern of cut point are not taken, realize the purpose of slab cutting quantity minimum.
- 2. the tune wide method with cutting optimization according to claim 1 for reducing the wide base of sheet billet continuous casting tune and cutting damage, its feature It is, type one is that the tune of X≤A is wide and cutting optimum organization specific method is as follows,The wide previous piece of latter half of completion of slab in plan of tune that breadth adjusting quantity changes from small to big, i.e., complete in nth block slab, adjusts wide meter It is L to draw pointWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；Breadth adjusting quantity from greatly to small tune it is wide when the head for planning slab starts into Row adjusts width, and it is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length。
- 3. the tune wide method with cutting optimization according to claim 1 for reducing the wide base of sheet billet continuous casting tune and cutting damage, its feature It is, type two is A<The tune of X≤2A is wide and cutting optimum organization specific method is as follows,01）In nth block slab, i.e. plan needs to adjust previous block of wide slab, and latter half of to adjust width, tune wide scope is A, adjusts wide plan Point is LWide point is adjusted in plan=LCumulative length+LWait length-LAdjust wide base length；02）Middle transition 1m；03）Adjust width again on the head of N+1 block slabs, i.e. plan needs to adjust wide slab, and tune wide scope is X-Amm, adjusts wide meter It is L to draw pointWide point is adjusted in plan=LCumulative length+LWait length+ 1 meter；04）Slab segmentation is carried out when cutting in the middle part of transition region.
- 4. the tune wide method with cutting optimization according to claim 1 for reducing the wide base of sheet billet continuous casting tune and cutting damage, its feature It is, type three is that the tune of X ＞ 2A is wide and cutting optimum organization specific method is as follows,11）What breadth adjusting quantity changed from small to big adjusts wide and descending tune is wide all to start to adjust width in previous piece of slab afterbody of plan, Start in nth block slab afterbody, it is L to adjust wide plan pointWide point is adjusted in plan=LCumulative length+LWait length；12）Optimizing incision, one piece of short scale as wide base length is adjusted is cut adjusting width position；This type tune wide scope is very Greatly, it is solution optimal at present that taking, which will adjust wide base integrally to cut off,.
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| CN103978173A (en) * | 2014-04-03 | 2014-08-13 | 新疆八一钢铁股份有限公司 | Novel method for quantitative cutting of continuously cast steel |
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