WO2012004205A1 - Procédé et chaîne de production destinés à fabriquer un produit plat en acier laminé à froid à partir d'un acier inoxydable - Google Patents

Procédé et chaîne de production destinés à fabriquer un produit plat en acier laminé à froid à partir d'un acier inoxydable Download PDF

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Publication number
WO2012004205A1
WO2012004205A1 PCT/EP2011/061155 EP2011061155W WO2012004205A1 WO 2012004205 A1 WO2012004205 A1 WO 2012004205A1 EP 2011061155 W EP2011061155 W EP 2011061155W WO 2012004205 A1 WO2012004205 A1 WO 2012004205A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolled
cold
product
flat
steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2011/061155
Other languages
German (de)
English (en)
Inventor
Ian Mackenzie
Christian Bartholdt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Metals Germany GmbH
Original Assignee
Andritz Sundwig GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andritz Sundwig GmbH filed Critical Andritz Sundwig GmbH
Priority to US13/809,060 priority Critical patent/US20130205855A1/en
Priority to KR1020137003486A priority patent/KR20130027051A/ko
Priority to AU2011275945A priority patent/AU2011275945A1/en
Priority to RU2013105473/02A priority patent/RU2562599C2/ru
Priority to BR112013000536A priority patent/BR112013000536A2/pt
Priority to EP11738649.0A priority patent/EP2591128A1/fr
Priority to JP2013519019A priority patent/JP2013536082A/ja
Publication of WO2012004205A1 publication Critical patent/WO2012004205A1/fr
Priority to ZA2013/00198A priority patent/ZA201300198B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04Devices 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 de-scaling, e.g. by brushing
    • B21B45/06Devices 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 de-scaling, e.g. by brushing of strip material
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236Cold rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273Final recrystallisation annealing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment 
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B3/00Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02Rolling special iron alloys, e.g. stainless steel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04Devices 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 de-scaling, e.g. by brushing

Definitions

  • the invention relates to a method for producing a cold-rolled steel flat product from a
  • the invention relates to a
  • flat steel products here from a stainless steel or a so-called “stainless steel” produced steel strips or sheets understood.
  • stainless steel produced steel strips or sheets understood.
  • a hot strip obtained and, if necessary, subjected to a supplementary heat treatment is then cold-rolled one or more stages into a cold strip with the scale adhering to it.
  • Cold strip is usually subjected to a heat treatment in which it is annealed at sufficiently high annealing temperatures. The then still existing fine and firmly adhering to the surface scale particles can in one
  • the pickling device may have a mechanically acting one
  • Descaling device can be combined.
  • a scale breaker is used in the coarser pieces of adhering to the annealed strip Zunders are removed.
  • a ball-blasting or a brushing device is usually provided, which mechanically releases any larger scale particles that still exist from the cold-rolled strip on emerging from the scale breaker.
  • the cold-rolled strip is, if necessary, still temper rolling after leaving the pickling device in order to improve its yield strength and dimensional stability.
  • the object of the invention was to provide a method and a production line which is particularly suitable for carrying out such a method, with which it is possible in a cost-effective manner to produce cold-rolled stainless steel flat products with improved surface quality.
  • the method according to the invention comprises a
  • Descaling takes place to rid the cold-rolled steel flat product from the tinder adhering to it.
  • the cold-rolled flat steel product obtained after the cold rolling of the hot strip is now in the hard-rolling state before the annealing of a
  • the steel flat product largely freed from coarser scale in the manner according to the invention then passes through a conventional annealing device in which it is annealed in a manner known per se in order to obtain the same
  • the stainless steel strip may optionally undergo a planarity improvement device.
  • stretch bending devices or the like are used for this purpose.
  • a production line according to the invention for producing a cold-rolled steel flat product comprising a stainless steel comprises at least one cold rolling stand, at least one annealing furnace and at least one device for mechanically removing scale adhering to the cold-rolled steel flat product, the at least one device for mechanically removing the scale is arranged in the conveying direction of the cold-rolled steel flat product before the entrance of the annealing furnace.
  • Annealing carried out descaling have produced in accordance with the invention, made of a stainless steel steel strips and sheets on an optimized surface finish. This optimization succeeds solely in that the mechanical descaling is carried out in front of the annealing furnace.
  • the necessary facilities are already available in conventional production lines, but are used according to the invention elsewhere. As a result, arise by the procedure of the invention with a significant increase in the quality of the obtained
  • Annealing furnace taking place mechanical descaling by means of several, optionally consecutively traversed or combined acting methods
  • the descaling is to be carried out by a particularly gentle blasting using fine particles, it is expedient, before the blast treatment on the surface of the
  • the removal of the liquid residues can be done by a thermal treatment.
  • a thermal treatment for example, a flame drying, in which the to cleaning surface is exposed to an open flame, so that the existing on the surface
  • this treatment may be considered
  • Liquid jets for example
  • the liquid steel agent can carry particles with it, which abradingly remove the scale adhering to the cold-rolled, hard-rolled steel flat product.
  • the particles concerned may be scale particles obtained from the scale removed from the cold-rolled steel flat product.
  • the cold rolled Flat steel product can optionally be tempered or tempered after annealing.
  • Plant technology, the inventive method can be completed discontinuously or in continuous flow. In the discontinuous
  • An inventively produced, made of a stainless steel flat steel product has a Surface roughness Ra on, which is regularly in the range of 0.1 - 1 ⁇ , without that on the
  • the procedure according to the invention requires additional measures. Particularly low surface roughness results in this case when the stainless steel strip is post-rolled after annealing at degrees of deformation of up to 10%, in particular 1-7%.
  • Production line 1 for producing a cold-rolled stainless steel strip E is a production line 1 for producing a cold-rolled stainless steel strip E.
  • the production line 1 comprises one behind the other in the conveying direction F in line
  • a uncoiling device 2 for the successive unwinding of hot strips W wound to coils C1, C2, which consist of a stainless steel and on whose surface the scale resulting from the hot strip production still adheres,
  • a welding device 3 which serves to connect the end of the hot-rolled strip W wound to one coil Cl to the beginning of the hot strip W wound to the other coil C2, when the first hot-rolled strip is completely fed into the production line 1, a first band memory 4 for equalizing
  • Ent scaling device 9 still adhering scale is removed by brushes of the stainless steel strip E mechanically,
  • Temper rolling stand 14 for re-rolling the stainless steel strip E with a total deformation degree of up to 10%
  • a reeling device 16 equipped with two reels which are used alternately for rewinding the stainless steel strip E leaving the strip store 15
  • Hot strip W is fed via the strip accumulator 4 into the first cold rolling stand 5 and then cold-rolled in the subsequently passed through cold rolling stands 6, 7 in a total of three stages to the cold-rolled stainless steel E.
  • the stainless steel strip E is elongated so that the scale adhering to it flakes off the hot strip W in coarse pieces as a result of the occurring surface tensions.
  • Descaling device 9 mechanically descaled by directing a particle beam of high kinetic energy against the solidified surfaces of the stainless steel strip E.
  • the particle beam may, for example, be a shot blast, as already used in the prior art for descaling, but elsewhere in the process.
  • a descaling device (not shown here) can be provided in which the scale adhering to the stainless steel strip E is removed by means of a high-pressure liquid jet. The applied under high pressure and with high kinetic energy on the belt surface to be descaled
  • Liquid jet can carry particles with it in order to increase the effectiveness of the scale removal. These particles can be trapped
  • Zunderteilchen act a certain grain size, which are the jet liquid, such as water, mixed.
  • the stainless steel strip E When passing through the continuous annealing furnace 11, the stainless steel strip E is heated to a temperature at which the solidified structure of the stainless steel strip E softens again.
  • the length of the continuous annealing furnace 11, the throughput speed and the annealing temperature are matched to one another in such a way that the desired microstructure hardening at the end of the continuous annealing furnace 11 is completed.
  • Continuous annealing furnace 11 may be divided into several zones for this purpose, in which different temperatures prevail in order to achieve an optimum glowing result. Due to its alloy and the consequent minimized sensitivity to corrosion, it forms on the
  • Annealing furnace adhering amount of scale is so small that it is largely completely removed from the surface of the stainless steel strip E in the pickling device 12 by the action of it acting on the stainless steel strip E mordant. Before entering the pickling device 12, however, the stainless steel band E still passes through in
  • the temper rolling carried out after discharge from the pickling device 12 serves, in particular, to improve the surface roughness of the stainless steel strip E, wherein in addition the dimensional stability and the mechanical properties are optimized before it is wound into a coil 3 or 4 in the coiling device 16.
  • the surface roughness values can be approximately halved, so that after the final rolling an optimally smooth product is available.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

L'invention concerne un procédé et une chaîne de production (1) réalisée de manière correspondante et destinée à fabriquer un produit plat en acier plat laminé à froid (E) à partir d'un feuillard à chaud (W) calaminé constitué d'un acier inoxydable. Au cours du procédé selon l'invention, le feuillard à chaud calaminé (W) est laminé à froid pour obtenir le produit plat en acier (E), le produit plat en acier laminé à froid (E) est recuit et le produit plat en acier recuit (E) est décalaminé. Selon l'invention, le produit plat en acier laminé à froid (E) obtenu après le laminage à froid du feuillard à chaud (W) est soumis dans l'état laminé dur avant le recuit à un traitement de décalaminage au cours duquel la calamine présente sur le produit plat en acier laminé à froid (E) est retirée mécaniquement. De cette façon, il est possible de réaliser un procédé et des chaînes de production permettant de façon peu onéreuse de produire des produits plats en acier laminés à froid à partir d'un acier inoxydable dont l'état de surface est amélioré.
PCT/EP2011/061155 2010-07-09 2011-07-01 Procédé et chaîne de production destinés à fabriquer un produit plat en acier laminé à froid à partir d'un acier inoxydable Ceased WO2012004205A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US13/809,060 US20130205855A1 (en) 2010-07-09 2011-07-01 Method and Production Line for Producing a Cold-Rolled Steel Flat Product from a Non-Corroding Steel
KR1020137003486A KR20130027051A (ko) 2010-07-09 2011-07-01 내식강으로부터 냉간 압연 평강 제품을 생산하기 위한 방법 및 생산 라인
AU2011275945A AU2011275945A1 (en) 2010-07-09 2011-07-01 Method and production line for producing a cold rolled flat steel product from a rustproof steel
RU2013105473/02A RU2562599C2 (ru) 2010-07-09 2011-07-01 Способ и производственная линия для получения холоднокатаного плоского изделия из нержавеющей стали
BR112013000536A BR112013000536A2 (pt) 2010-07-09 2011-07-01 processo e ilha de produção de um produto plano de aço laminado a frio de um aço inoxidável
EP11738649.0A EP2591128A1 (fr) 2010-07-09 2011-07-01 Procédé et chaîne de production destinés à fabriquer un produit plat en acier laminé à froid à partir d'un acier inoxydable
JP2013519019A JP2013536082A (ja) 2010-07-09 2011-07-01 不銹鋼から冷間圧延平鋼製品を製造する方法および製造ライン
ZA2013/00198A ZA201300198B (en) 2010-07-09 2013-01-08 Method and production line for producing a cold rolled flat steel product from a rustproof steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010026757A DE102010026757B4 (de) 2010-07-09 2010-07-09 Verfahren und Produktionslinie zum Herstellen eines kaltgewalzten Stahlflachprodukts aus einem nicht rostenden Stahl
DE102010026757.0 2010-07-09

Publications (1)

Publication Number Publication Date
WO2012004205A1 true WO2012004205A1 (fr) 2012-01-12

Family

ID=44629443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/061155 Ceased WO2012004205A1 (fr) 2010-07-09 2011-07-01 Procédé et chaîne de production destinés à fabriquer un produit plat en acier laminé à froid à partir d'un acier inoxydable

Country Status (11)

Country Link
US (1) US20130205855A1 (fr)
EP (1) EP2591128A1 (fr)
JP (1) JP2013536082A (fr)
KR (1) KR20130027051A (fr)
AU (1) AU2011275945A1 (fr)
BR (1) BR112013000536A2 (fr)
DE (1) DE102010026757B4 (fr)
RU (1) RU2562599C2 (fr)
TW (1) TW201211269A (fr)
WO (1) WO2012004205A1 (fr)
ZA (1) ZA201300198B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333625B1 (en) * 2014-12-05 2016-05-10 The Material Works, Ltd. Method of descaling stainless steel
CN106808371B (zh) * 2016-03-31 2019-12-03 河北领程环保科技有限公司 一种磨料水射流金属带材清理生产线及使用方法
CN105922349B (zh) * 2016-05-03 2018-12-18 上海日成电子有限公司 线槽自动冲边孔机
ES2911429T3 (es) * 2017-10-10 2022-05-19 Outokumpu Oy Método para la deformación en frío parcial de acero con grosor homogéneo
KR102010059B1 (ko) * 2017-12-13 2019-08-12 주식회사 포스코 소재 디스케일러 장치 및 디스케일링 방법
FI128282B (en) * 2019-01-28 2020-02-28 Outokumpu Oy Method for manufacturing of stainless steel strips
AT524149B1 (de) * 2020-08-20 2022-11-15 Nntech Gmbh Verfahren zur Bearbeitung eines Stahlblechs
CN118649929A (zh) * 2024-05-08 2024-09-17 宝武集团鄂城钢铁有限公司 一种去除明火炉正火钢板表面氧化铁皮的方法

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* Cited by examiner, † Cited by third party
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EP0706840A2 (fr) * 1994-10-14 1996-04-17 MANNESMANN Aktiengesellschaft Procédé et dispositif pour fabriquer une bande d'acier inoxydable laminée à froid, cette bande obtenue d'une bande laminée à chaud
EP0769333A1 (fr) * 1995-10-19 1997-04-23 Usinor Sacilor Procédé d'élaboration, sur une ligne, en continu, d'une bande de tole laminée d'acier inoxydable présentant un état de surface améliorée
EP0509177B1 (fr) 1991-04-18 1997-07-02 T. Sendzimir, Inc. Procédé et installation pour fabriquer des bandes d'acier inoxydable laminées à froid
DE19749466C1 (de) * 1997-11-08 1998-12-24 Bwg Bergwerk Walzwerk Verfahren und Behandlungslinie zum Herstellen von gewalzten oder gegossenen Metallbändern, insbesondere Stahlbändern aus Edelstahl- und Titanlegierungen, mit einer entzunderten Bandoberfläche
DE102006005063A1 (de) 2006-02-03 2007-08-09 Linde Ag Verfahren zur Wärmebehandlung von Stahlbändern

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JPS56168907A (en) * 1980-05-31 1981-12-25 Nisshin Steel Co Ltd Manufacture of stainless steel sheet finished by grinding
JPH0622728B2 (ja) * 1986-05-16 1994-03-30 大同特殊鋼株式会社 形状記憶合金製薄板のデスケ−リング方法
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0509177B1 (fr) 1991-04-18 1997-07-02 T. Sendzimir, Inc. Procédé et installation pour fabriquer des bandes d'acier inoxydable laminées à froid
DE69126699T2 (de) 1991-04-18 1997-12-18 Sendzimir Inc T Verfahren und Anlage zum Herstellen kaltgewalzter rostfreier Stahlbänder
EP0706840A2 (fr) * 1994-10-14 1996-04-17 MANNESMANN Aktiengesellschaft Procédé et dispositif pour fabriquer une bande d'acier inoxydable laminée à froid, cette bande obtenue d'une bande laminée à chaud
EP0769333A1 (fr) * 1995-10-19 1997-04-23 Usinor Sacilor Procédé d'élaboration, sur une ligne, en continu, d'une bande de tole laminée d'acier inoxydable présentant un état de surface améliorée
DE19749466C1 (de) * 1997-11-08 1998-12-24 Bwg Bergwerk Walzwerk Verfahren und Behandlungslinie zum Herstellen von gewalzten oder gegossenen Metallbändern, insbesondere Stahlbändern aus Edelstahl- und Titanlegierungen, mit einer entzunderten Bandoberfläche
DE102006005063A1 (de) 2006-02-03 2007-08-09 Linde Ag Verfahren zur Wärmebehandlung von Stahlbändern

Also Published As

Publication number Publication date
US20130205855A1 (en) 2013-08-15
RU2013105473A (ru) 2014-08-20
TW201211269A (en) 2012-03-16
ZA201300198B (en) 2013-09-25
KR20130027051A (ko) 2013-03-14
JP2013536082A (ja) 2013-09-19
DE102010026757A1 (de) 2012-01-12
EP2591128A1 (fr) 2013-05-15
RU2562599C2 (ru) 2015-09-10
BR112013000536A2 (pt) 2016-05-24
DE102010026757B4 (de) 2012-07-05
AU2011275945A1 (en) 2013-01-24

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