WO2013098098A1 - Verfahren und vorrichtung zum walzen von walzgut sowie verwendung eines kühlschmierstoffes - Google Patents
Verfahren und vorrichtung zum walzen von walzgut sowie verwendung eines kühlschmierstoffes Download PDFInfo
- Publication number
- WO2013098098A1 WO2013098098A1 PCT/EP2012/075620 EP2012075620W WO2013098098A1 WO 2013098098 A1 WO2013098098 A1 WO 2013098098A1 EP 2012075620 W EP2012075620 W EP 2012075620W WO 2013098098 A1 WO2013098098 A1 WO 2013098098A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- rolling
- cooling lubricant
- rolling stock
- soluble
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0242—Lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0206—Coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
Definitions
- the present invention relates to a method for rolling of rolling stock, a device for rolling of rolling stock, and the use of a cooling lubricant for rolling of rolling stock.
- the method, apparatus and use are preferably used in cold rolling.
- cooling lubricants In cold and hot rolling of metallic strips, fluids are usually applied to the rolls and / or to the rolling stock to cool the rolls and strip to lubricate the joint and to permit roller and belt cleaning. These fluids are commonly referred to as cooling lubricants (KSS).
- KSS cooling lubricants
- the cooling lubricants In the case of the cooling function of rollers and belt, the cooling lubricants, especially during cold rolling, serve to dissipate the forming heat and the frictional heat. In the function of the lubrication of the active joint in the roll gap, the cooling lubricants are used to adjust the tribological conditions in the roll gap suitable and thus to ensure a corresponding surface quality of the rolled rolled material. With regard to the cleaning function, the cooling lubricants are used to clean the roller and the rolling stock and to remove dirt particles in order to achieve a good surface quality of the rolled strip. In addition, the cooling lubricants can have an influence on the conditioning of the belt.
- the coolants are also adjusted to be compatible with the upstream and downstream equipment within the process chain in the processing of the rolling stock, for example with regard to corrosion protection, cleaning in other process steps and / or avoiding discoloration of the rolled strip, for example, during annealing of the rolling stock. It is also desirable that the properties of the cooling lubricant remain substantially stable during use and no degradation takes place over time.
- the prior art in industrial cold rolling practice usually employs cooling lubricants which are used either as single-phase oil-based coolants or as water-based coolants with dispersed oil-based droplets which are then present as emulsions.
- the purely oil-based cooling lubricants have the disadvantage of water-based systems, the disadvantage of flammability and a poorer heat transfer and a low heat capacity. As a result, the productivity of such operated rolling plants is relatively limited.
- Emulsions can have disadvantages in that the oil-based droplets within the emulsion first have to settle on the respective rolling surfaces or rolling-surface surfaces, so that the lubricant-active substances contained in them and the higher viscosity of the oil phase have an effect. Before entering the nip of the nip, separation of the continuous phase from the tribologically active substance is desired. This results in a delay of the effect, which either a limit of the rolling speed is achieved, or the distances between the stands must be made longer in order to achieve the required exposure time.
- Dirt particles which are smaller or equal to the order of magnitude of the oil droplets in the emulsion can not be removed from the cooling lubricant without at the same time discharging the oil phase from the cooling lubricant.
- the properties of dispersed oil-based droplets based on water-based cooling lubricants can be degraded by mechanical, biological or chemical action.
- the term "degradation" is used to simplify, if a detrimental change of a product property is referred to, without describing the mechanism underlying the change closer and without restrictive reference to the scientific classification in terms of physical, chemical, procedural, physiological, olfactory or any other product feature.
- a method for rolling of rolling stock wherein a water-based cooling lubricant is applied to the rolling stock and / or on at least one roller forming a roller gap.
- at least one water-soluble additive which modifies the viscosity and the lubricating properties in the active joint during forming processes before being applied to the rolling stock and / or the at least one roll is added to the water-based cooling lubricant, hereinafter referred to as "tribologically active".
- ultrafine filterability can be achieved so that excess cooling lubricant can be subjected to ultrafine filtration without loss of tribological effectiveness. In this way, the excess cooling lubricant can be reused and the Coolant circuit recycled.
- ultrafine filtration can be achieved at the same time a high surface quality of the rolled stock, since the rolling abrasion is removed in a suitable manner and discharged from the cooling lubricating circuit.
- the use of the water-soluble and tribologically active additive in comparison to the use of oil-based cooling lubricants achieved that for certain applications, such as the high-speed rolling of aluminum and viscosity ranges can be used that are not available when using oil-based cooling lubricants or not feasible under industrial manufacturing conditions , This applies in particular to substances with a kinematic viscosity below 1, 8 mnrvVs at 40 ° C.
- the cooling lubricant can be adapted accordingly to the respective individual rolling case, that is, for example, to the processed rolling stock or rolling material and the rolling conditions in the rolling gap.
- the water-based cooling lubricant is preferably applied to the rolling stock and / or to the rolls forming the roll gap, preferably by adjusting the application conditions, particularly preferably by changing the flow temperature, the application pressure, the type of application , as well as the place of application. Accordingly, a certain concentration or layer thickness of the water-soluble and tribologically active additive is achieved on the rolling stock and / or on the corresponding roll (s) in order to be able to set the corresponding tribological conditions in the roll gap.
- cooling lubricant circuit In order to form a cooling lubricant circuit effectively, excess cooling lubricant is collected after application to the rolling stock and / or the roll, then subjected to ultrafine filtration, and then the finely filtered coolant used again as a cooling lubricant for application to the rolling stock and / or the roll. Due to the ultrafine filtration, rolling abrasion and other foreign substances are discharged from the cooling lubricant accordingly, and the cooling lubricant can again be used without any loss of quality. In this way, an efficient use of the cooling lubricant can be performed.
- At least one water-soluble and tribologically active additive to the ultrafiltrated cooling lubricant before re-application to the rolling stock and / or the roll, in order to restore the originally desired additive concentration in the cooling lubricant.
- This is preferably carried out on the basis of the determination of the emplacement or enrichment of this additive, wherein the emptying is preferably determined by a continuous measurement of the relative permittivity and / or the specific electrical conductivity of the collected cooling lubricant.
- the addition of the additive to the rolling stock and / or to the at least one roll is determined by evaluating the measured rolling process data using a suitable tribological process model, and the addition of the water-soluble and tribologically active additive is controlled so that the desired Additive addition is achieved.
- the necessary additive concentration in the cooling lubricant can be determined and, accordingly, the water-soluble and tribologically active additive can be added to the cooling lubricant stream.
- the addition of additive on the rolling stock leaving the nip is determined by the additive layer remaining on the rolling stock and the addition of the water-soluble and tribologically active additive is regulated or controlled accordingly so that the desired remaining additive addition is achieved.
- the addition of the water-soluble and tribologically active additive is carried out on the basis of a continuous measurement of the particulate rolling abrasion in the collected cooling lubricant.
- a continuous particle size measurement to be carried out online, the classification into roll-relevant size classes, with comparative use of a database which incorporates the roll material, the roll roughness, the roll type, the rolling stock, the alloy, the pass schedule and a suitable process model and, accordingly, the The composition of the cooling lubricant controls or regulates.
- At least one further water-soluble additive is metered into the cooling lubricant, preferably for balancing the effect of the cooling lubricant between a washing action and a lubricating effect, preferably depending on the desired, as well as achieved surface appearance, for example, determined by gloss, roughness, shading or texture.
- concentration of a particular water-soluble additive is thereby determined in a targeted manner, preferably via spectrometry and / or the continuous measurement of the relative permittivity and / or the specific electrical conductivity of the cooling lubricant.
- a different amount of water-soluble and tribologically active additive is added to the cooling lubricant applied to the upper side of the rolling stock and / or the upper roll than to the cooling lubricant which is applied to the underside of the rolling stock and / or the lower roll , In this way, a different surface appearance of the rolled rolled material is achieved, so that the upper side and the lower side have different properties, such as, for example, a different surface appearance.
- an apparatus for rolling of rolling stock in a rolling gap formed by rolling, wherein a water-based cooling lubricant to the rolling stock and / or at least one of the roll gap forming roller is applied.
- a water-soluble and tribologically active additive is added to the water-based cooling lubricant.
- the above object is also achieved by using a water-based cooling lubricant during rolling of rolling stock, preferably during cold rolling of rolling stock.
- a water-based cooling lubricant during rolling of rolling stock, preferably during cold rolling of rolling stock.
- at least one water-soluble and tribologically active additive is added to the water-based cooling lubricant.
- FIG. 1 shows schematically a cold rolling mill in a side view.
- the rolling stock 1 in this case passes through two rolling stands 2, 3, which are shown schematically, which each have an upper roll 20, 30 and a lower roll 22, 32, which are each supported by support rolls 24, 34, 26, 36. Between the respective upper and lower rollers 20, 22, 30, 32 is the actual Rolling gap 200, 300 formed in which the transformation of the rolling stock 1 takes place.
- the arranged in the rolling direction W first mill stand 2 performs according to the first stitch, the following rolling stands 3, etc., the following stitches.
- the cooling lubricant is applied to the rolling stock 1 before entering the respective roll gap 200, 300 of the rolling stands 2, 3.
- the cooling lubricant is applied to the rolling stock 1 on the upper side of the rolling stock 1 by means of spray bars 4 extending transversely across the rolling stock 1.
- the respective spray bar 4, the cooling lubricant via leads 40 for the cooling lubricant from a cooling lubricant reservoir 42 is supplied.
- spray bars 5 are also provided, which are also fed via feed lines 50 for the cooling lubricant from a cooling lubricant reservoir 52 and are formed for applying the cooling lubricant to the rolling stock 1.
- the cooling lubricant can also be applied directly to the rollers 20, 22 coming into contact with the rolling stock 1.
- a corresponding device for this purpose is shown schematically in FIG. 1 in the form of the spray bars 44, 54, which are arranged correspondingly in front of the roll gap 200 above the rolls 20, 22.
- drip pans 28, 38 may be provided below the rolling mills 2, 3 and / or below the spray bars 4, 44, 5, 54, drip pans 28, 38 may be provided, which receive excess cooling lubricant, which is from the rolling stock 1 and / or the rollers 20, 22 has drained again.
- the drip pans 28, 38 can be recovered in accordance with excess coolant and then fed back to the coolant lubricant circuit. In this way, the cooling lubricant can be reused and in this way the rolling process can be carried out more efficiently.
- Water-soluble and tribologically active additives of different properties can, as schematically illustrated by the metering device 6, be variably added to the cooling lubricant.
- the metering device 6 for metering in water-soluble additives to the cooling lubricant, which is applied via the cooling bars 4, 5, allows a precise adjustment of the properties of the cooling lubricant, which is applied to the rolling stock 1 and / or the rollers in contact with the rolling stock.
- the desired tribological properties can be achieved in the nip.
- the addition of the water-soluble and tribologically active additives can be further formed, for example, between a desired washing effect and a desired lubricating effect of the cooling lubricant, depending on the desired surface appearance and depending on the targeted reduction in the production of the rolled strip from the rolling stock.
- the rolling process data from the roll gap monitoring and analysis may be used, including a suitable tribological process model, to control the additive composition in the cooling lubricant.
- the additive attachment lying behind the nip 200 can be measured on the strip rolled from the rolling stock 1 after passing through the nip 200.
- This parameter can also be taken into account when adjusting the addition of the water-soluble and tribologically active additives. Accordingly, the mixture of the respective water-soluble and tribologically active additives is adjusted via the metering device 6.
- electrical conductivity sensors or sensors which measure the relative permittivity of the cooling lubricant, as indicated for example schematically by the sensor 72, the emptying of individual additives in the cooling lubricant circuit can be determined and controlled according to an addition of the leached water-soluble additives.
- the particulate rolling abrasion can be measured by the also indicated schematically sensor 74 and by means of a particle measurement with comparative use of a database, which includes the roll material, the roll surface, the rolling stock, the alloy, the rolling conditions, and a suitable process model, and can image in this way according to a Abriebkennfeld monitoring the rolling process.
- a corresponding control of the metered addition of the water-soluble additive by means of the metering device 6 can also be carried out in this way.
- the recycled circuit of collected coolant for example via the two schematically indicated drip trays 28, 38, is filtered after passing through the corresponding sensors 72, 74, by means of ultrafine filtration in the filter 8.
- the filter device 8 used here preferably represents a very fine filtration in such a way that even particles smaller than 5 ⁇ are removed from the collected cooling lubricant so that it can be added to the circulation of the cooling lubricant again without sacrificing quality during the forming of the rolling stock 1.
- a spray bar 4 above and a spray bar 5 below the belt By forming a spray bar 4 above and a spray bar 5 below the belt, on the one hand, an asymmetric additive injection can take place above and below the belt 1, as a result of which different surface appearance images can be produced.
- the provision of the metering device 6 makes it possible for the water-soluble and tribologically active additives to be applied to the rolling stock selectively and in a time-variable manner.
- a flexible rolling schedule can be met and customized products with variable properties of the rolling stock can be manufactured as a function of width, length and time. For example, in this way the strip thickness, the surface appearance, the roughness, wettability, coatability, changeable.
- the cooling lubricants used are accordingly designed as water-based cooling lubricants, which by means of water-based additives, which include in particular viscosity enhancer, which allow sufficient hydrodynamic film formation, good cooling properties and a required Feinstfiltrieriana even in the range of less than 5 ⁇ , and at the same time a stability to the biological decomposition of the cooling lubricant guarantee.
- water-based additives which include in particular viscosity enhancer, which allow sufficient hydrodynamic film formation, good cooling properties and a required Feinstfiltrieriana even in the range of less than 5 ⁇ , and at the same time a stability to the biological decomposition of the cooling lubricant guarantee.
- the viscosity can be adjusted via viscosity boosters, which are adjusted in a range that covers the typical rolling tasks.
- viscosity boosters which are adjusted in a range that covers the typical rolling tasks.
- compared to the use of rolling oils can be adjusted advantageously for certain applications, such as the high-speed rolling of aluminum required viscosities, which is not possible when using today's cooling lubricants.
- the boundary friction in the nip is achieved by addition of special suitable for the forming by the rollers water-soluble and tribologically active additives on the roll surface and / or the rolling stock, in particular the band 1.
- the water-soluble and tribologically active additives are adjusted to match the rolling task, so in particular matching the material and rolling conditions in the nip and the additive attachment to the rollers, roll surfaces and the belt can by adjusting and / or changing the respective order conditions, for example by a change or Adjusting the flow temperature, the application pressure, as well as the type and location of the application of the cooling lubricant.
- Water-based cooling lubricants with viscosity enhancers are known, for example, from the field of machining.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112014016317A BR112014016317A2 (pt) | 2011-12-29 | 2012-12-14 | processo e dispositivo para laminação de laminado bem como emprego de um lubrificante de resfriamento |
JP2014549410A JP5780571B2 (ja) | 2011-12-29 | 2012-12-14 | 圧延材を圧延するための方法及び装置 |
ES12810192.0T ES2548698T3 (es) | 2011-12-29 | 2012-12-14 | Procedimiento y dispositivo para laminar material a laminar y utilización de un lubricante refrigerante |
KR1020147017695A KR101614464B1 (ko) | 2011-12-29 | 2012-12-14 | 압연 스톡의 압연 방법 및 압연 장치 |
EP12810192.0A EP2797701B1 (de) | 2011-12-29 | 2012-12-14 | Verfahren und vorrichtung zum walzen von walzgut sowie verwendung eines kühlschmierstoffes |
PL12810192T PL2797701T3 (pl) | 2011-12-29 | 2012-12-14 | Sposób i urządzenie do walcowania walcowanego materiału oraz zastosowanie substancji chłodząco-smarującej |
CN201280065465.4A CN104080551B (zh) | 2011-12-29 | 2012-12-14 | 用于轧制轧件的方法和装置 |
US14/369,444 US9700924B2 (en) | 2011-12-29 | 2012-12-14 | Method and device for rolling stock and use of a cooling lubricant |
ZA2014/04093A ZA201404093B (en) | 2011-12-29 | 2014-06-05 | Method and device for rolling rolling stock and use of a cooling lubricant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011090098.5 | 2011-12-29 | ||
DE102011090098A DE102011090098A1 (de) | 2011-12-29 | 2011-12-29 | Verfahren und Vorrichtung zum Walzen von Walzgut sowie Verwendung eines Kühlschmierstoffes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013098098A1 true WO2013098098A1 (de) | 2013-07-04 |
Family
ID=47504900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/075620 WO2013098098A1 (de) | 2011-12-29 | 2012-12-14 | Verfahren und vorrichtung zum walzen von walzgut sowie verwendung eines kühlschmierstoffes |
Country Status (12)
Country | Link |
---|---|
US (1) | US9700924B2 (de) |
EP (1) | EP2797701B1 (de) |
JP (1) | JP5780571B2 (de) |
KR (1) | KR101614464B1 (de) |
CN (1) | CN104080551B (de) |
BR (1) | BR112014016317A2 (de) |
DE (1) | DE102011090098A1 (de) |
ES (1) | ES2548698T3 (de) |
HU (1) | HUE025907T2 (de) |
PL (1) | PL2797701T3 (de) |
WO (1) | WO2013098098A1 (de) |
ZA (1) | ZA201404093B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018141632A1 (en) * | 2017-01-31 | 2018-08-09 | Constellium Rolled Products Singen Gmbh & Co.Kg | Method of making aluminium rolled product having at least one bright surface |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016122498A1 (de) | 2016-11-22 | 2018-05-24 | Sms Group Gmbh | Verfahren zur hydrostatischen Abstützung von Arbeitswalzen für das Kaltwalzen hochfester und/oder dünner Bänder |
CN111672915B (zh) * | 2020-05-21 | 2022-03-15 | 武汉定飞科技有限公司 | 一种可逆冷轧机供液泵节能运行的方法 |
CN112337977A (zh) * | 2020-10-16 | 2021-02-09 | 宝钢湛江钢铁有限公司 | 一种提高热轧粗轧立辊轧制油系统精准度的方法 |
JP7575591B2 (ja) | 2021-05-27 | 2024-10-29 | 株式会社Moresco | 監視診断装置、監視診断システムおよび監視診断方法 |
WO2024205930A1 (en) * | 2023-03-29 | 2024-10-03 | Novelis Inc. | Systems and methods for controlling frictional behavior in sheet metal stamping and other applications |
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2011
- 2011-12-29 DE DE102011090098A patent/DE102011090098A1/de not_active Withdrawn
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2012
- 2012-12-14 HU HUE12810192A patent/HUE025907T2/en unknown
- 2012-12-14 CN CN201280065465.4A patent/CN104080551B/zh active Active
- 2012-12-14 BR BR112014016317A patent/BR112014016317A2/pt not_active Application Discontinuation
- 2012-12-14 KR KR1020147017695A patent/KR101614464B1/ko active IP Right Grant
- 2012-12-14 US US14/369,444 patent/US9700924B2/en active Active
- 2012-12-14 EP EP12810192.0A patent/EP2797701B1/de active Active
- 2012-12-14 JP JP2014549410A patent/JP5780571B2/ja active Active
- 2012-12-14 PL PL12810192T patent/PL2797701T3/pl unknown
- 2012-12-14 ES ES12810192.0T patent/ES2548698T3/es active Active
- 2012-12-14 WO PCT/EP2012/075620 patent/WO2013098098A1/de active Application Filing
-
2014
- 2014-06-05 ZA ZA2014/04093A patent/ZA201404093B/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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GB729615A (en) * | 1953-04-08 | 1955-05-11 | Pennzoil Co | Improvements in or relating to cold metal reduction by rolling, drawing and extrusion |
EP0839895A2 (de) * | 1996-10-30 | 1998-05-06 | Kawasaki Steel Corporation | Schmiermittel zum Gebrauch bei Warmwerkzeugen |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018141632A1 (en) * | 2017-01-31 | 2018-08-09 | Constellium Rolled Products Singen Gmbh & Co.Kg | Method of making aluminium rolled product having at least one bright surface |
Also Published As
Publication number | Publication date |
---|---|
KR101614464B1 (ko) | 2016-04-21 |
BR112014016317A2 (pt) | 2017-07-04 |
US9700924B2 (en) | 2017-07-11 |
ZA201404093B (en) | 2015-08-26 |
JP2015506277A (ja) | 2015-03-02 |
KR20140102261A (ko) | 2014-08-21 |
JP5780571B2 (ja) | 2015-09-16 |
CN104080551A (zh) | 2014-10-01 |
ES2548698T3 (es) | 2015-10-20 |
CN104080551B (zh) | 2016-11-02 |
US20150027187A1 (en) | 2015-01-29 |
EP2797701B1 (de) | 2015-09-16 |
DE102011090098A1 (de) | 2013-07-04 |
PL2797701T3 (pl) | 2016-03-31 |
HUE025907T2 (en) | 2016-04-28 |
EP2797701A1 (de) | 2014-11-05 |
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