EP1311369A1 - Verfahren und vorrichtung zur entfernung metallischer verunreinigungen - Google Patents
Verfahren und vorrichtung zur entfernung metallischer verunreinigungenInfo
- Publication number
- EP1311369A1 EP1311369A1 EP01962946A EP01962946A EP1311369A1 EP 1311369 A1 EP1311369 A1 EP 1311369A1 EP 01962946 A EP01962946 A EP 01962946A EP 01962946 A EP01962946 A EP 01962946A EP 1311369 A1 EP1311369 A1 EP 1311369A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaned
- tool
- jet nozzle
- workpiece
- blasting
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000012535 impurity Substances 0.000 title claims abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 13
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 13
- 235000011089 carbon dioxide Nutrition 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 8
- 238000005422 blasting Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000000356 contaminant Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000005555 metalworking Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 239000003082 abrasive agent Substances 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract 1
- 238000004220 aggregation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000008188 pellet Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
- B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
Definitions
- the invention relates to a method for removing metallic contaminants from a metallic workpiece or tool.
- the invention further relates to a device for removing metallic contaminants from a metallic workpiece or tool.
- Rotating tools are often used in metalworking, which have to be cleaned from time to time in order to maintain the quality of the machining.
- steel sheets for the automotive industry are coated with aluminum or zinc as corrosion protection in fire-coating systems (so-called FBA).
- FBA fire-coating systems
- these sheets are sent through a so-called “skin pass mill”.
- smoothened rollers smoothened rollers (skin pass rollers) transfer a defined roughness (surface structure) to the belt surface. This process takes place under high surface pressure.
- the invention is therefore based on the object of demonstrating a method and a device of the type described at the outset by which the disadvantages mentioned are eliminated.
- an effective type of cleaning that should extend the life of the tools to be cleaned should be provided.
- this object is achieved for the method in that an abrasive in solid state is used for cleaning, which is present in gaseous state under normal conditions.
- the object is achieved in that the device comprises means for supplying such an abrasive for cleaning in a gaseous state under normal conditions.
- the invention is based on the idea that a cleaning agent is used as the blasting agent which is gaseous under normal conditions and can therefore escape without difficulty and without residue.
- rotating tools in particular rotating, preferably driven apparatus, devices or their rotating parts are addressed, for example rotating rollers.
- Dry ice which has proven itself in numerous applications, should be mentioned in particular as a cleaning agent present in normal gaseous state.
- Carbon dioxide in a solid state has a temperature of around -78 ° C. When heated, carbon dioxide sublimes. When carbon dioxide is sublimed, an explosive increase in volume occurs by a factor of around 600, which effectively supports jet cleaning. The editing with carbon dioxide in a solid state of matter runs without residue, since the sublimed gaseous carbon dioxide can escape without any problems. Blasting agent preparation or blasting agent disposal is therefore not necessary for carbon dioxide.
- Solid carbon dioxide in the form of CO 2 pellets is preferably used.
- Impurities on metal are suitable. This result is surprising insofar as the thermal expansion coefficients of the contaminants and the workpiece do not differ or differ only slightly in this application.
- the blasting agent is preferably directed via a movable blasting nozzle onto the tool or workpiece to be cleaned.
- the jet nozzle is moved on a traversing device that is adapted to the geometry of the tool to be cleaned.
- the blasting nozzle can be moved on its own traversing device or for other devices.
- the jet nozzle is arranged on its own traversing device or for other devices.
- Cleaning the skin pass roller makes it possible to dispense with the corrosion-promoting use of high-pressure water jet.
- the regular use of the jet cleaning according to the invention in particular with CO 2l, largely prevents the buildup of the smallest impurities leading to larger lumps which cause damage. This is a grinding or cleaning of the skin pass roller required much less often.
- the complaint rate and the cost of spare parts are reduced while the service life is increased. Blasting with dry ice produces very good results, especially with the hard zinc particles.
- the blasting nozzle can be moved on a traversing device which is moved at least in the axial direction of the skin pass roller during cleaning.
- a jet nozzle that has been specially adapted to the roller geometry and process parameters is placed - for example, on a grinding stand that can be moved with a traversing device.
- a separate traversing device for the jet nozzle can also be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10041056 | 2000-08-22 | ||
| DE10041056 | 2000-08-22 | ||
| PCT/EP2001/009412 WO2002016081A1 (de) | 2000-08-22 | 2001-08-15 | Verfahren und vorrichtung zur entfernung metallischer verunreinigungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1311369A1 true EP1311369A1 (de) | 2003-05-21 |
| EP1311369B1 EP1311369B1 (de) | 2004-10-13 |
Family
ID=7653299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01962946A Expired - Lifetime EP1311369B1 (de) | 2000-08-22 | 2001-08-15 | Verfahren und vorrichtung zur entfernung metallischer verunreinigungen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1311369B1 (de) |
| AT (1) | ATE279300T1 (de) |
| AU (1) | AU2001284017A1 (de) |
| DE (1) | DE50104137D1 (de) |
| WO (1) | WO2002016081A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10115993B4 (de) * | 2001-03-30 | 2010-04-01 | Sms Siemag Aktiengesellschaft | Verfahren zur Verhinderung des Durchtritts von Flüssigkeiten durch den Walzspalt beim Walzen von Bändern in Bandwalzgerüsten sowie Vorrichtung zur Durchführung des Verfahrens |
| WO2005049237A1 (en) * | 2003-11-24 | 2005-06-02 | International Tobacco Machinery Poland Ltd. | Method of washing the cutter drum of a cutting machine for organic plant materials, particularly tobacco materials,and a device for washing the cutter drum of a cutting machine for organic plant materials,particularly tobacco materials |
| FR2915118B1 (fr) * | 2007-04-18 | 2009-06-05 | Siemens Vai Metals Tech Sas | Procede de nettoyage de cylindre de laminoir et dispositif correspondant |
| DE102009010005A1 (de) * | 2009-02-23 | 2010-08-26 | Linde Ag | Verfahren und Vorrichtung zum Trennen eines Werkstücks, bei dem zumindest zwei metallische Bauteile, über ein material- und/oder formschlüssiges Verbindungsmittel miteinander verbunden sind |
| DE102009035161A1 (de) | 2009-07-29 | 2011-02-10 | Sms Siemag Ag | Verfahren und Vorrichtung zur Entzunderung oder Reinigung von metallischen Oberflächen, unter anderem Bänder (oder Brammen) im Durchlauf |
| WO2013038485A1 (ja) | 2011-09-13 | 2013-03-21 | 新日鐵住金株式会社 | 管端部のねじ要素測定方法 |
| DE202014006663U1 (de) * | 2014-08-16 | 2014-10-07 | Winfried Wulf | Reinigung der Glas-Transportrollen bei der Floatglasherstellung in einem Rollenkühlofen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5107764A (en) * | 1990-02-13 | 1992-04-28 | Baldwin Technology Corporation | Method and apparatus for carbon dioxide cleaning of graphic arts equipment |
| DE19621837C1 (de) * | 1996-05-31 | 1997-09-11 | Thyssen Stahl Ag | Verfahren und Vorrichtung zum Behandeln von insbesondere feuerbeschichtetem Feinblech unter Einsatz von gegen das Feinblech gedrückter Rollen, insbesondere Walzen |
| US6099396A (en) * | 1997-03-14 | 2000-08-08 | Eco-Snow Systems, Inc. | Carbon dioxide jet spray pallet cleaning system |
-
2001
- 2001-08-15 WO PCT/EP2001/009412 patent/WO2002016081A1/de not_active Ceased
- 2001-08-15 DE DE2001504137 patent/DE50104137D1/de not_active Expired - Lifetime
- 2001-08-15 EP EP01962946A patent/EP1311369B1/de not_active Expired - Lifetime
- 2001-08-15 AT AT01962946T patent/ATE279300T1/de not_active IP Right Cessation
- 2001-08-15 AU AU2001284017A patent/AU2001284017A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0216081A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE279300T1 (de) | 2004-10-15 |
| DE50104137D1 (de) | 2004-11-18 |
| EP1311369B1 (de) | 2004-10-13 |
| AU2001284017A1 (en) | 2002-03-04 |
| WO2002016081A1 (de) | 2002-02-28 |
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