CN109622630A - Heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method - Google Patents
Heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method Download PDFInfo
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- CN109622630A CN109622630A CN201910005228.2A CN201910005228A CN109622630A CN 109622630 A CN109622630 A CN 109622630A CN 201910005228 A CN201910005228 A CN 201910005228A CN 109622630 A CN109622630 A CN 109622630A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
Abstract
The invention discloses heat-resisting aluminium alloy pole stock rolling technological parameter on-line control methods comprising following steps: (1) calculating theoretical finish rolling torque value；(2) on-line control rolling parameter；The present invention passes through the corresponding relationship between finish rolling torque and tensile strength, to adjust the technological parameter during controlled rolling, such as crystallize wheel speed, emulsion temperature, realize prejudging and controlling to heat-resisting aluminium alloy bar tensile strength index, first furnace, which can be produced, meets the heat-resisting aluminium alloy pole stock that user requires (referring mainly to tensile strength and conductivity), the adjustment period is greatly shortened, rejection rate is reduced, reduces cost of material.
Description
Technical field:
The present invention relates to aluminium alloy production fields, more particularly to heat-resisting aluminium alloy pole stock rolling technological parameter on-line control
Method
Background technique:
Currently, domestic aluminium and aluminium alloy rod (>=Φ 8mm) production technology are mainly continuous casting and rolling method, in addition to this, also
Extrusion, flow post method etc..Relative to extrusion, flow post method, continuous casting and rolling method yield is big, and high-efficient, production cost is low, product matter
Amount is stablized, and is the technique that industrial production of aluminum and aluminium alloy rod mainly use.Continuous casting and rolling produces aluminium and aluminium alloy rod is (mainly electric
Work justifies aluminium bar) technique primary operational process has: (1) according to product requirement, select suitable primary aluminum and its auxiliary material；(2) cleaning is molten protects
Furnace prevents pollution primary aluminum, and baker reaches operating condition；(3) according to required weight by selected primary aluminum shove charge；(4) it controls
It is molten to protect furnace temperature, melt primary aluminum or heat preservation；(5) borax treatment；(6) it refines, skim；(7) sampling analysis；(8) after ingredient is qualified
It is rolled.
Currently, not can determine that the alumite produced closes during using continuous casting and rolling online production heat-resisting aluminium alloy bar
Whether golden bar meets design requirement, after only heat-resisting aluminium alloy bar is come out of the stove, carries out performance detection and analysis to heat-resisting aluminium alloy bar,
It just can determine whether it meets design requirement.But if after detecting, exceeded (the mainly conductivity of heat-resisting aluminium alloy bar performance
It is low, do not reach requirement), waste product or substandard products can only be used as, is melted down or price reduction is handled, then according to testing result, then analyzed
The exceeded reason of heat-resisting aluminium alloy bar performance, next furnace carry out casting and rolling mill practice adjustment by experience, until alumite closes
Golden bar performance indicator fully meets user's requirement.Although this method can finally produce the heat-resisting aluminium alloy for meeting user's requirement
Pole stock, but due to there is no theoretical foundation to coach, adjusting has blindness, and the adjustment period is long, and generation waste product, substandard products are more, causes
A large amount of wastage of material increase production cost.
Summary of the invention:
To save raw material, reducing production cost, it is online that the present invention provides a kind of heat-resisting aluminium alloy pole stock rolling technological parameter
Adjusting method.
The purpose of the present invention is implemented by following technical solution: heat-resisting aluminium alloy pole stock rolling technological parameter on-line control side
Method comprising following steps: (1) theoretical finish rolling torque value is calculated；(2) on-line control rolling parameter；Wherein,
(1) theoretical finish rolling torque value is calculated: according to design and desired tensile strength and finish rolling torque and tensile strength
Corresponding relationship, calculate the theoretical finish rolling torque value of heat-resisting aluminium alloy pole stock in advance；
(2) on-line control rolling parameter: in the heat-resisting aluminium alloy pole stock operation of rolling, by the practical finish rolling in the operation of rolling
Torque value and theoretical finish rolling torque value carry out real-time online comparison, when poor between practical finish rolling torque value and theoretical finish rolling torque value
When the absolute value of value is greater than 15Nm, by adjusting emulsion temperature and/or crystallization wheel speed, so that practical finish rolling torque value and reason
It is not more than 15Nm by the absolute value of difference between finish rolling torque value.
Further, the relationship of the finish rolling torque and tensile strength are as follows:
YMPa=0.125XN·m+63
Wherein, YMPaFor tensile strength, XN·mFor theoretical finish rolling torque value.
Further, when practical finish rolling torque value is greater than theoretical finish rolling torque value, then emulsion temperature is first improved, when lotion temperature
When degree reaches 60 DEG C, the difference between practical finish rolling torque value and theoretical finish rolling torque value is still greater than 15Nm, then improves knot
Brilliant wheel speed, so that the difference between practical finish rolling torque value and theoretical finish rolling torque value is not more than 15Nm；Or it first improves
Wheel speed is crystallized, the difference when crystallization wheel speed reaches 2.0rpm, between practical finish rolling torque value and theoretical finish rolling torque value
Still it is greater than 15Nm, then improves emulsion temperature, so that the difference between practical finish rolling torque value and theoretical finish rolling torque value is not
Greater than 15Nm.
Further, if practical finish rolling torque value is less than theoretical finish rolling torque value, emulsion temperature is first reduced, when lotion temperature
When degree is down to 30 DEG C, the difference between theoretical finish rolling torque value and practical finish rolling torque value is still greater than 15Nm, then reduces knot
Brilliant wheel speed, so that the difference between theoretical finish rolling torque value and practical finish rolling torque value is not more than 15Nm；Or it first reduces
Wheel speed is crystallized, the difference when crystallization wheel speed is down to 1.9rpm, between theoretical finish rolling torque value and practical finish rolling torque value
Still it is greater than 15Nm, then reduces emulsion temperature, so that the difference between theoretical finish rolling torque value and practical finish rolling torque value is not
Greater than 15Nm.
Further, the corresponding relationship of the finish rolling torque and tensile strength are as follows: with the increase of finish rolling torque, tensile strength
Increase, the every increase 10Nm of finish rolling torque, then tensile strength increases 1-2MPa.
Further, the corresponding relationship of the finish rolling torque and crystallization wheel speed are as follows: with the increase of crystallization wheel speed, finish rolling
Torque reduces, and crystallizes the every increase 0.01rpm of wheel speed, then finish rolling torque reduces 30-50Nm.
Further, the corresponding relationship of the finish rolling torque and emulsion temperature are as follows: with the increase of emulsion temperature, finish rolling torque
It reduces, emulsion temperature is every to increase by 1 DEG C, then finish rolling torque reduces 2-4Nm.
Present invention discover that the factor for influencing conductivity is mainly heat-resisting in the case where heat-resisting aluminium alloy pole stock ingredient determines
Aluminium alloy rod tensile strength, heat-resisting aluminium alloy bar conductivity with tensile strength be it is contradictory, heat-resisting aluminium alloy bar tensile strength is got over
Height, conductivity are lower；It has also been found that heat-resisting aluminium alloy bar tensile strength with finish rolling torque be it is positively related, there is certain ratio to close
System, therefore, passes through On-line Control finish rolling torque, so that it may control heat-resisting aluminium alloy bar tensile strength and conductivity.
The present invention passes through the corresponding relationship between heat-resisting aluminium alloy bar tensile strength and finish rolling torque, on-line tuning control essence
Torque is rolled, finish rolling torque such as crystallizes wheel speed, emulsion temperature to adjust control, to reach by the technological parameter in the operation of rolling
To the preparatory On-line Control of heat-resisting aluminium alloy bar tensile strength after rolling.
Advantages of the present invention:
(1) present invention crystallizes wheel speed and emulsion temperature by on-line control to control finish rolling torque, realizes to heat-resisting
Aluminium alloy rod tensile strength index being prejudged and controlling, the first furnace can produce meet user require (refer mainly to tension
Intensity and conductivity) heat-resisting aluminium alloy pole stock, greatly shorten adjustment the period, reduce rejection rate, reduce cost of material；(2) originally
Adjustment crystallization wheel speed and emulsion temperature are commanded in invention by finish rolling torque, and control method is easy to operate practical, with strong points,
Quickly and effectively.
Detailed description of the invention
Fig. 1 is the On-Line Control Method flow chart of rolling technological parameter.
Specific embodiment:
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1: heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method is used for on-line control alumite and is closed
The rolling technological parameter of golden pole stock comprising have the following steps: molten after satisfactory low silicon raw aluminum liquid (1) to be added to cleaning
It protects in furnace；(2) it reacts the vanadium in the low silicon raw aluminum liquid, titanium, manganese, chromium with boron and generates boracic chemical combination
Then object refines degasification, removal of impurities；(3) it is stood after skimming, then carries out the removal of falling furnace and be deposited in the molten boracic for protecting furnace bottom
Compound obtains low vanadium, low titanium aluminum melt；(4) Al-Zr intermediate alloy is added into low vanadium, low titanium aluminum melt, stir-melting closes
The heat-resisting aluminium alloy melt that zirconium content is 0.01-0.10%wt. is obtained after aurification；It (5) is 0.01-0.10%wt. by zirconium content
Heat-resisting aluminium alloy melt casting, rolling heat-resisting aluminium alloy pole stock, in the operation of rolling, pass through the online of rolling technological parameter
Control method controlled rolling technological parameter.Wherein,
(1) molten guarantor's furnace furnace bottom aluminum melt is put it clean as far as possible, it is lonely again after then clear to furnace bottom and furnace wall heat, then with original
Molten aluminum carries out once flushing again；Satisfactory low silicon raw aluminum liquid is added in molten guarantor's furnace after cleaning, aluminium in low silicon raw aluminum liquid
Mass percentage 99.84%.
The chemical component table of low silicon raw aluminum liquid: %
| Fe | Si | B | Zr | V+Ti+Mn+Cr | Al |
| 0.08 | 0.05 | 0.0007 | 0.0008 | 0.013 | 99.84 |
(2) borax treatment: low silicon raw aluminum liquid ingredient described in sampling analysis, according to V+Ti mass hundred in the low silicon raw aluminum liquid
Divide content CV+TiDetermine addition B mass percentage CB, so that CV+Ti: CB=2:1；Low silicon raw aluminum liquid mistake is being added by chute
The aluminium boron intermediate alloy measured is added in chute Cheng Zhong, with the low silicon raw aluminum liquid impulsive motion, and in company with the low silicon primary aluminum
Liquid is added molten protect and starts boronation reaction in furnace after stirring 10min, so that the vanadium, titanium, manganese, chromium and boron in the low silicon raw aluminum liquid are anti-
Boron-containing compound should be generated；761 DEG C of boronation reaction temperature, boronation reaction time 90min；
Degasification, removal of impurities are refined after borax treatment, refining temperature is 760 DEG C, refining time 40min.
(3) it skims after refining, 120min is stood after skimming, then sample detection analyzes aluminum melt ingredient, when aluminium is molten
Body chemical component meets: iron 0.08%wt., silicon 0.05%wt., boron 0.0009%wt., the total amount of vanadium, titanium, manganese, chromium
When 0.0019%wt., furnace is carried out down, removal is deposited in the molten boron-containing compound for protecting furnace bottom, it is molten to obtain low vanadium, low titanium aluminium
Body；Furnace volume is the 97% of the low silicon raw aluminum liquid quality being added.
(4) Al-Zr intermediate alloy is added into the low vanadium, low titanium aluminum melt, addition temperature is 770 DEG C, due to falling furnace
Low vanadium, low titanium aluminum melt quality can not accurately estimate, therefore add in two times that stir-melting alloying obtains zirconium content and is afterwards
The heat-resisting aluminium alloy melt of 0.09%wt.；Stir-melting 30min after addition Al-Zr intermediate alloy, smelting temperature are for the first time
770 DEG C, sampling analysis ingredient, the then low vanadium of inverse, low titanium aluminum melt gross mass, then calculate and closed among second of addition Al-Zr
Golden amount；Stir-melting 30min after second of addition Al-Zr intermediate alloy, smelting temperature are 770 DEG C.
(5) after the completion of adding the melting of Al-Zr intermediate alloy, sampling analysis ingredient meets in the heat-resisting aluminium alloy melt
Iron 0.08%wt., silicon 0.05%wt., boron 0.009%wt., zirconium 0.09%wt., the total amount of vanadium, titanium, manganese, chromium
0.0019%wt. is cast, is rolled when surplus is aluminium, is not used aluminium titanium boron wire fining agent, is obtained heat-resisting aluminium alloy pole stock.
In the operation of rolling, pass through the On-Line Control Method controlled rolling technological parameter of rolling technological parameter.
The On-Line Control Method of rolling technological parameter includes the following steps: that (1) calculates theoretical finish rolling torque value；(2) online
Adjust rolling parameter；Wherein,
(1) theoretical finish rolling torque value is calculated: according to design and desired tensile strength and finish rolling torque and tensile strength
Corresponding relationship: with the increase of finish rolling torque, tensile strength increases, the every increase 10Nm of finish rolling torque, then tensile strength increases
Add 1-2MPa, calculates the theoretical finish rolling torque value of heat-resisting aluminium alloy pole stock in advance；In the present embodiment, design and desired tension
Intensity is 100MPa, passes through tensile strength and finish rolling torque relationship (YMPa=0.125XN·m+ 63) heat-resisting aluminium alloy pole stock is calculated
Theoretical finish rolling torque value be 296Nm, wherein YMPaFor tensile strength, XN·mFor theoretical finish rolling torque value.
(2) on-line control rolling parameter: the present embodiment is in the initial operation of rolling of heat-resisting aluminium alloy pole stock, the rolling of detection
Technological parameter is as follows:
Pouring temperature: 682 DEG C；
Blank temperature: 526 DEG C；
Cooling water gross pressure: 343Pa；
Inflow temperature: 15 DEG C；
Crystallize wheel speed: 1.87rpm；
Finish rolling torque: 490Nm
Emulsion temperature: 30 DEG C；
Rod temperature: 92 DEG C.
Practical finish rolling torque value in the operation of rolling is subjected to real-time online comparison, the present embodiment with theoretical finish rolling torque value
In, the practical finish rolling torque value of detection is 490Nm,
Practical finish rolling torque value is greater than theoretical finish rolling torque value, first improves emulsion temperature, when emulsion temperature reaches 60 DEG C,
Difference between practical finish rolling torque value and theoretical finish rolling torque value is 104Nm, is still greater than 15Nm, then improves crystallizing wheel
Speed, when crystallization wheel speed is 1.90rpm, the difference between practical finish rolling torque value and theoretical finish rolling torque value is 13Nm,
No more than 15Nm.
The corresponding relationship of finish rolling torque and crystallization wheel speed are as follows: with the increase of crystallization wheel speed, finish rolling torque is reduced, knot
The brilliant every increase 0.01rpm of wheel speed, then finish rolling torque reduces 30-50Nm.
The corresponding relationship of finish rolling torque and emulsion temperature are as follows: with the increase of emulsion temperature, finish rolling torque is reduced, lotion temperature
Every 1 DEG C of increase is spent, then finish rolling torque reduces 2-4Nm.
The present embodiment is run after on-line tuning by following rolling technological parameter:
Pouring temperature: 682 DEG C；
Blank temperature: 526 DEG C；
Cooling water gross pressure: 343Pa；
Inflow temperature: 15 DEG C；
Crystallize wheel speed: 1.90rpm rpm；
Finish rolling torque: 309Nm
Emulsion temperature: 60 DEG C；
Rod temperature: 92 DEG C.
Using heat-resisting aluminium alloy pole stock made from the present embodiment chemical component by mass percentage are as follows: iron 0.08%, silicon
0.05%, boron 0.0009%, zirconium 0.09%, vanadium, titanium, manganese, chromium gross mass percentage composition 0.0019%, surplus is aluminium.
It is as follows using heat-resisting aluminium alloy pole stock performance made from the present embodiment:
| Nominal diameter/mm | Tensile strength/MPa | Elongation/% | Conductivity/%IACS |
| 9.5 | 100 | 19 | 63.0 |
It is as follows using heat-resistant aluminum alloy wire performance made of the present embodiment heat-resisting aluminium alloy bar:
| Heat resistance/% | Conductivity/%IACS | Intensity/MPa |
| 98 | 62.5 | 161 |
Embodiment 2: this embodiment differs from embodiment 1 in that, during the rolling process, do not pass through rolling technological parameter
On-Line Control Method controlled rolling technological parameter, initially rolled using heat-resisting aluminium alloy pole stock same as Example 1 always
Rolling technological parameter operation in the process.
Using heat-resisting aluminium alloy pole stock made from the present embodiment chemical component by mass percentage are as follows: iron 0.08%, silicon
0.05%, boron 0.0009%, zirconium 0.09%, vanadium, titanium, manganese, chromium gross mass percentage composition 0.0019%, surplus is aluminium.
It is as follows using heat-resisting aluminium alloy pole stock performance made from the present embodiment:
| Nominal diameter/mm | Tensile strength/MPa | Elongation/% | Conductivity/%IACS |
| 9.5 | 124 | 15 | 62.2 |
It is as follows using heat-resistant aluminum alloy wire performance made of the present embodiment heat-resisting aluminium alloy bar:
| Heat resistance/% | Conductivity/%IACS | Intensity/MPa |
| 98 | 61.7 | 185 |
Compared with embodiment 1, the present embodiment does not use the method for the present invention to carry out the adjustment of online process parameter, although heat-resisting
Aluminium alloy conductor intensity keeps higher level, but conductivity is substantially reduced.
Embodiment 3: heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method is used for on-line control alumite and is closed
The rolling technological parameter of golden pole stock comprising have the following steps: molten after satisfactory low silicon raw aluminum liquid (1) to be added to cleaning
It protects in furnace；(2) it reacts the vanadium in the low silicon raw aluminum liquid, titanium, manganese, chromium with boron and generates boracic chemical combination
Then object refines degasification, removal of impurities；(3) it is stood after skimming, then carries out the removal of falling furnace and be deposited in the molten boracic for protecting furnace bottom
Compound obtains low vanadium, low titanium aluminum melt；(4) Al-Zr intermediate alloy is added into low vanadium, low titanium aluminum melt, stir-melting closes
The heat-resisting aluminium alloy melt that zirconium content is 0.01-0.10%wt. is obtained after aurification；It (5) is 0.01-0.10%wt. by zirconium content
Heat-resisting aluminium alloy melt casting, rolling heat-resisting aluminium alloy pole stock, in the operation of rolling, pass through the online of rolling technological parameter
Control method controlled rolling technological parameter.Wherein,
(1) molten guarantor's furnace furnace bottom aluminum melt is put it clean as far as possible, it is lonely again after then clear to furnace bottom and furnace wall heat, then with original
Molten aluminum carries out once flushing again；Satisfactory low silicon raw aluminum liquid is added in molten guarantor's furnace after cleaning, aluminium in low silicon raw aluminum liquid
Mass percentage 99.82%.
The chemical component table of low silicon raw aluminum liquid: %
| Fe | Si | B | Zr | V+Ti+Mn+Cr | Al |
| 0.092 | 0.061 | 0.0005 | 0.0006 | 0.021 | 99.82 |
(2) borax treatment: low silicon raw aluminum liquid ingredient described in sampling analysis, according to V+Ti mass hundred in the low silicon raw aluminum liquid
Divide content CV+TiDetermine addition B mass percentage CB, so that CV+Ti: CB=1.6:1；Low silicon raw aluminum liquid is being added by chute
In the process, the aluminium boron intermediate alloy measured is added in chute, with the low silicon raw aluminum liquid impulsive motion, and it is former in company with the low silicon
Molten aluminum is added molten protect and starts boronation reaction in furnace after stirring 9min, so that vanadium, titanium, manganese, chromium and boron in the low silicon raw aluminum liquid
Reaction generates boron-containing compound；758 DEG C of boronation reaction temperature, boronation reaction time 50min；
Degasification, removal of impurities are refined after borax treatment, refining temperature is 758 DEG C, refining time 37min.
(3) it skims after refining, 115min is stood after skimming, then sample detection analyzes aluminum melt ingredient, when aluminium is molten
Body chemical component meets: iron 0.092%wt., silicon 0.061wt., boron 0.0011%wt., the total amount of vanadium, titanium, manganese, chromium
When 0.0037%wt., furnace is carried out down, removal is deposited in the molten boron-containing compound for protecting furnace bottom, it is molten to obtain low vanadium, low titanium aluminium
Body；Furnace volume is the 96% of the low silicon raw aluminum liquid quality being added.
(4) Al-Zr intermediate alloy is added into the low vanadium, low titanium aluminum melt, addition temperature is 768 DEG C, due to falling furnace
Low vanadium, low titanium aluminum melt quality can not accurately estimate, therefore add in two times that stir-melting alloying obtains zirconium content and is afterwards
The heat-resisting aluminium alloy melt of 0.038%wt.；Stir-melting 25min after addition Al-Zr intermediate alloy, smelting temperature are for the first time
766 DEG C, sampling analysis ingredient, the then low vanadium of inverse, low titanium aluminum melt gross mass, then calculate and closed among second of addition Al-Zr
Golden amount；Stir-melting 24min after second of addition Al-Zr intermediate alloy, smelting temperature are 764 DEG C.
(5) after the completion of adding the melting of Al-Zr intermediate alloy, sampling analysis ingredient meets in the heat-resisting aluminium alloy melt
Iron 0.092%wt., silicon 0.061%wt., boron 0.0011%wt., zirconium 0.038%wt., the total amount of vanadium, titanium, manganese, chromium
0.0037%wt. is cast, is rolled when surplus is aluminium, is not used aluminium titanium boron wire fining agent, is obtained heat-resisting aluminium alloy pole stock.
In the operation of rolling, pass through the On-Line Control Method controlled rolling technological parameter of rolling technological parameter.
The On-Line Control Method of rolling technological parameter includes the following steps: that (1) calculates theoretical finish rolling torque value；(2) online
Adjust rolling parameter；Wherein,
(1) theoretical finish rolling torque value is calculated: according to design and desired tensile strength and finish rolling torque and tensile strength
Corresponding relationship: with the increase of finish rolling torque, tensile strength increases, the every increase 10Nm of finish rolling torque, then tensile strength increases
Add 1-2MPa, calculates the theoretical finish rolling torque value of heat-resisting aluminium alloy pole stock in advance；In the present embodiment, design and desired tension
Intensity is 108MPa, passes through tensile strength and finish rolling torque relationship (YMPa=0.125XN·m+ 63) heat-resisting aluminium alloy pole stock is calculated
Theoretical finish rolling torque value be 360Nm, wherein YMPaFor tensile strength, XN·mFor theoretical finish rolling torque value.
(2) on-line control rolling parameter: the present embodiment is in the initial operation of rolling of heat-resisting aluminium alloy pole stock, the rolling of detection
Technological parameter is as follows:
Pouring temperature: 710 DEG C；
Blank temperature: 550 DEG C；
Cooling water gross pressure: 380Pa；
Inflow temperature: 24 DEG C；
Crystallize wheel speed: 1.95rpm；
Finish rolling torque: 220Nm
Emulsion temperature: 46 DEG C；
Rod temperature: 115 DEG C.
Practical finish rolling torque value in the operation of rolling is subjected to real-time online comparison, the present embodiment with theoretical finish rolling torque value
In, the practical finish rolling torque value of detection is 220Nm, and practical finish rolling torque value is less than theoretical finish rolling torque value, first reduces crystallization
Wheel speed, when crystallization wheel speed is down to 1.91rpm；When, the difference between theoretical finish rolling torque value and practical finish rolling torque value is
5Nm is not more than 15Nm.
The corresponding relationship of finish rolling torque and crystallization wheel speed are as follows: with the increase of crystallization wheel speed, finish rolling torque is reduced, knot
The brilliant every increase 0.01rpm of wheel speed, then finish rolling torque reduces 30-50Nm.
The corresponding relationship of finish rolling torque and emulsion temperature are as follows: with the increase of emulsion temperature, finish rolling torque is reduced, lotion temperature
Every 1 DEG C of increase is spent, then finish rolling torque reduces 2-4Nm.
The present embodiment is run after on-line tuning by following rolling technological parameter:
Pouring temperature: 710 DEG C；
Blank temperature: 550 DEG C；
Cooling water gross pressure: 380Pa；
Inflow temperature: 24 DEG C；
Crystallize wheel speed: 1.91rpm；
Finish rolling torque: 365Nm
Emulsion temperature: 46 DEG C；
Rod temperature: 115 DEG C.
Using heat-resisting aluminium alloy pole stock made from the present embodiment chemical component by mass percentage are as follows: iron 0.092%, silicon
0.061%, boron 0.0011%, zirconium 0.038%, vanadium, titanium, manganese, chromium gross mass percentage composition 0.0037%, surplus is
Aluminium.
It is as follows using heat-resisting aluminium alloy pole stock performance made from the present embodiment:
| Nominal diameter/mm | Tensile strength/MPa | Elongation/% | Conductivity/%IACS |
| 9.5 | 108 | 17 | 63.5 |
It is as follows using heat-resistant aluminum alloy wire performance made of the present embodiment heat-resisting aluminium alloy bar:
| Heat resistance/% | Conductivity/%IACS | Intensity/MPa |
| 92 | 62.8 | 168 |
Embodiment 4: the present embodiment difference from Example 3 is, during the rolling process, does not roll work through the invention
The On-Line Control Method controlled rolling technological parameter of skill parameter, always using at the beginning of heat-resisting aluminium alloy pole stock same as Example 3
Rolling technological parameter operation in the beginning operation of rolling.
Using heat-resisting aluminium alloy pole stock made from the present embodiment chemical component by mass percentage are as follows: iron 0.092%, silicon
0.061%, boron 0.0011%, zirconium 0.038%, vanadium, titanium, manganese, chromium gross mass percentage composition 0.0037%, surplus is
Aluminium.
It is as follows using heat-resisting aluminium alloy pole stock performance made from the present embodiment:
| Nominal diameter/mm | Tensile strength/MPa | Elongation/% | Conductivity/%IACS |
| 9.50 | 89 | 19 | 63.8 |
It is as follows using heat-resistant aluminum alloy wire performance made of the present embodiment heat-resisting aluminium alloy bar:
| Heat resistance/% | Conductivity/%IACS | Intensity/MPa |
| 92 | 63.2 | 149 |
Compared with embodiment 3, the present embodiment does not carry out online process parameter adjustment, although conductivity is kept compared with Gao Shui
It is flat, but heat-resistant aluminum alloy wire intensity is lower than 159MPa, does not reach standard requirements.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method, which is characterized in that it includes the following steps: that (1) is counted
Calculate theoretical finish rolling torque value；(2) on-line control rolling parameter；Wherein,
(1) theoretical finish rolling torque value is calculated: according to pair of design and desired tensile strength and finish rolling torque and tensile strength
It should be related to, calculate the theoretical finish rolling torque value of heat-resisting aluminium alloy pole stock in advance；
(2) on-line control rolling parameter: in the heat-resisting aluminium alloy pole stock operation of rolling, by the practical finish rolling torque in the operation of rolling
Value carries out real-time online comparison with theoretical finish rolling torque value, when difference between practical finish rolling torque value and theoretical finish rolling torque value
When absolute value is greater than 15Nm, by adjusting emulsion temperature and/or crystallization wheel speed, so that practical finish rolling torque value and theory essence
The absolute value of difference between torque value is rolled no more than 15Nm.
2. heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method according to claim 1, which is characterized in that institute
State the relationship of finish rolling torque and tensile strength are as follows:
YMPa=0.125XN·m+63
Wherein, YMPaFor tensile strength, XN·mFor theoretical finish rolling torque value.
3. heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method according to claim 2, which is characterized in that when
When practical finish rolling torque value is greater than theoretical finish rolling torque value, then emulsion temperature is first improved, it is practical when emulsion temperature reaches 60 DEG C
Difference between finish rolling torque value and theoretical finish rolling torque value is still greater than 15Nm, then improves crystallization wheel speed, so that practical
Difference between finish rolling torque value and theoretical finish rolling torque value is not more than 15Nm；Or crystallization wheel speed is first improved, work as crystallization
When wheel speed reaches 2.0rpm, the difference between practical finish rolling torque value and theoretical finish rolling torque value is still greater than 15Nm, then
Emulsion temperature is improved, so that the difference between practical finish rolling torque value and theoretical finish rolling torque value is not more than 15Nm.
4. heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method according to claim 2, which is characterized in that such as
Finish rolling torque value in fruit border is less than theoretical finish rolling torque value, then first reduces emulsion temperature, theoretical when emulsion temperature is down to 30 DEG C
Difference between finish rolling torque value and practical finish rolling torque value is still greater than 15Nm, then reduces crystallization wheel speed, so that theoretical
Difference between finish rolling torque value and practical finish rolling torque value is not more than 15Nm；Or crystallization wheel speed is first reduced, work as crystallization
When wheel speed is down to 1.9rpm, the difference between theoretical finish rolling torque value and practical finish rolling torque value is still greater than 15Nm, then
Emulsion temperature is reduced, so that the difference between theoretical finish rolling torque value and practical finish rolling torque value is not more than 15Nm.
5. heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method according to any one of claims 1-4,
It is characterized in that, the corresponding relationship of the finish rolling torque and tensile strength are as follows: with the increase of finish rolling torque, tensile strength increases,
The every increase 10Nm of finish rolling torque, then tensile strength increases 1-2MPa.
6. heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method according to any one of claims 1-4,
It is characterized in that, the corresponding relationship of the finish rolling torque and crystallization wheel speed are as follows: with the increase of crystallization wheel speed, finish rolling torque drop
It is low, the every increase 0.01rpm of wheel speed is crystallized, then finish rolling torque reduces 30-50Nm.
7. heat-resisting aluminium alloy pole stock rolling technological parameter on-line control method according to any one of claims 1-4,
It is characterized in that, the corresponding relationship of the finish rolling torque and emulsion temperature are as follows: with the increase of emulsion temperature, finish rolling torque is reduced,
Emulsion temperature is every to increase by 1 DEG C, then finish rolling torque reduces 2-4Nm.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114522A (en) * | 1980-02-13 | 1981-09-09 | Kikai Syst Shinko Kyokai | Speed control method of direct rolling mill |
| JPS56160858A (en) * | 1980-05-14 | 1981-12-10 | Kikai Syst Shinko Kyokai | Control method of continuous casting machine |
| CN1273148A (en) * | 1999-05-07 | 2000-11-15 | Sms舒路曼-斯玛公司 | Method for producing continuous casting steel product and its device |
| CN101600521A (en) * | 2007-02-02 | 2009-12-09 | 西门子公司 | Driving is batched or method and the corresponding control device and the devices for taking-up of the devices for taking-up of debatching metal tape |
| CN104831127A (en) * | 2015-05-12 | 2015-08-12 | 无锡华能电缆有限公司 | High-conductivity heat-resistance aluminum alloy wire and preparation method thereof |
| CN107073534A (en) * | 2014-09-24 | 2017-08-18 | Sms集团有限公司 | Method and casting rolling equipment for casting and rolling continuous casting blank material without a head |
-
2019
- 2019-01-03 CN CN201910005228.2A patent/CN109622630B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114522A (en) * | 1980-02-13 | 1981-09-09 | Kikai Syst Shinko Kyokai | Speed control method of direct rolling mill |
| JPS56160858A (en) * | 1980-05-14 | 1981-12-10 | Kikai Syst Shinko Kyokai | Control method of continuous casting machine |
| CN1273148A (en) * | 1999-05-07 | 2000-11-15 | Sms舒路曼-斯玛公司 | Method for producing continuous casting steel product and its device |
| CN101600521A (en) * | 2007-02-02 | 2009-12-09 | 西门子公司 | Driving is batched or method and the corresponding control device and the devices for taking-up of the devices for taking-up of debatching metal tape |
| CN107073534A (en) * | 2014-09-24 | 2017-08-18 | Sms集团有限公司 | Method and casting rolling equipment for casting and rolling continuous casting blank material without a head |
| CN104831127A (en) * | 2015-05-12 | 2015-08-12 | 无锡华能电缆有限公司 | High-conductivity heat-resistance aluminum alloy wire and preparation method thereof |
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