EP1198617A1 - Verfahren zum auftrag von no-rinse-produkten auf laufende metallbänder - Google Patents
Verfahren zum auftrag von no-rinse-produkten auf laufende metallbänderInfo
- Publication number
- EP1198617A1 EP1198617A1 EP00944008A EP00944008A EP1198617A1 EP 1198617 A1 EP1198617 A1 EP 1198617A1 EP 00944008 A EP00944008 A EP 00944008A EP 00944008 A EP00944008 A EP 00944008A EP 1198617 A1 EP1198617 A1 EP 1198617A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solution
- metal strips
- treatment
- roller
- fleece
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 150000002222 fluorine compounds Chemical class 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000004532 chromating Methods 0.000 claims abstract description 3
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 238000002161 passivation Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 18
- 239000000047 product Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- -1 that is Substances 0.000 description 4
- 239000003929 acidic solution Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 229920000592 inorganic polymer Polymers 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910001437 manganese ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- YOYLLRBMGQRFTN-SMCOLXIQSA-N norbuprenorphine Chemical compound C([C@@H](NCC1)[C@]23CC[C@]4([C@H](C3)C(C)(O)C(C)(C)C)OC)C3=CC=C(O)C5=C3[C@@]21[C@H]4O5 YOYLLRBMGQRFTN-SMCOLXIQSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- DXIGZHYPWYIZLM-UHFFFAOYSA-J tetrafluorozirconium;dihydrofluoride Chemical compound F.F.F[Zr](F)(F)F DXIGZHYPWYIZLM-UHFFFAOYSA-J 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0808—Details thereof, e.g. surface characteristics
Definitions
- the invention is in the field of corrosion-protective surface treatment of metal strips. It relates in particular to the application of so-called no-rinse products, that is, products that are dried immediately after application without an intermediate rinse with water. This means that all non-volatile components of the treatment solution used and the reaction products with the metal surface remain on the metal.
- An advantage of this technique is that there is no product-contaminated rinse water that has to be disposed of in a complex manner.
- the treatment solutions are applied to the metal belts, known as chemcoaters or rollcoaters, using rollers with a hard surface.
- spray / dip squeeze technology in which the surface is briefly brought into contact with the treatment solution to be applied by spraying or dipping, immediately after which the treatment solution is squeezed off by means of rollers and then dried.
- a disadvantage of the chemcoater is the high investment and operating costs.
- a disadvantage of the spray / dip squeeze process is a wet film thickness which is dependent on the running time of the squeeze roller, with different film layers also being obtained when the width changes in the edge regions. The coating of the tape is therefore uneven. Since the wet film is still very thin after being squeezed off (generally thinner than 2 ⁇ m), small changes in the wet film thickness have a very noticeable effect on the layer coverage achieved.
- the object of the invention is to provide an improved application system for no-rinse products which does not have the disadvantages mentioned above.
- the invention relates to a process for the chemical treatment of metal strips, wherein a treatment liquid is applied to one or both sides of the surface of the metal strips with an application roller and dried without intermediate rinsing, characterized in that a fleece roller is used as the application roller.
- Fleece rollers referred to as soft rolls in the Anglo-Saxon language area, are currently used in the belt industry as squeeze rollers.
- the surface of these rollers consists of a soft layer, usually made of chemical-resistant random fibers. Examples are polyamide (nylon) fibers or polypropylene fibers. In general, all fibers can be used that have a sufficient absorption volume and sufficient resistance to strongly acidic or alkaline solutions. In the method according to the invention, these rollers can rotate in opposite or parallel directions with the metal strip.
- the gap between the fleece rollers is preferably adjusted as a function of the sheet thickness so that the treatment liquid is applied to the surface of the metal strips with a wet film thickness in the range from 1 to 10 ⁇ m. This is the case, for example, with a gap width between approximately 0.3 and approximately 0.8 mm.
- the roller gap is preferably set such that a wet film thickness in the range from 2 to 6 ⁇ m (corresponding to ml / m 2 ) is set on the surface of the metal strips.
- treatment solutions which are suitable for no-rinse processes can be applied by the process according to the invention.
- these treatment liquids are either acidic (pH between 0 and 7) or alkaline (pH between 7 and 14).
- the composition of the treatment solutions is usually chosen so that a chemical reaction with the metal surface occurs.
- a large number of such treatment solutions are known in the prior art. Examples include: Phosphating solutions: acidified, phosphoric acid-containing solutions that produce a crystalline or amorphous metal phosphate layer on the metal surface.
- These solutions usually contain zinc ions as cations, often together with manganese and / or nickel ions.
- Chromating solutions acidic solutions containing Cr (VI) ions and often also Cr (III) ions.
- Acidic or alkaline passivation solutions aqueous solutions which usually contain transition metal ions and which, after drying, produce a corrosion-protecting amorphous (mixed) oxide layer.
- Treatment solutions based on complex fluorides usually acidic solutions of, for example, hexafluorozirconic acid, hexafluorotitanic acid, hexafluorosilicic acid and their salts.
- Solutions or dispersions of organic film formers for example polyacrylates.
- the solution can contain inorganic reactive components such as complex fluorides. This creates an inorganic / organic-polymer mixed layer.
- Such treatment solutions are currently used for the treatment of different substrates in conventional application processes. They are adjusted to the metal surface to be treated and are suitable, for example, for the treatment of steel, galvanized or alloy-galvanized steel, of alloy-aluminized steel and for the treatment of aluminum and its alloys. Accordingly, the method according to the invention can be used using treatment liquids of this type for the treatment of tapes made from the materials mentioned.
- the treatment solution can be applied to the surface of the fleece roller in different ways. For example, it is possible to spray them on spray on the surface of the fleece roller. Alternatively, it can be transferred from a storage container to the surface of the fleece roller via scoop rollers.
- treatment liquid is applied to the surface of the fleece roller via the interior of the fleece roller.
- the wall of the fleece roller can be made permeable to liquid. Treatment liquid supplied into the interior of the fleece roller, for example through a hollow roller shaft, can therefore reach the surface of the roller through holes in the wall of the roller.
- the treatment solution is preferably applied to the metal strips at a temperature in the range from about 15 to about 40 ° C., in particular in the range between 20 and 30 ° C.
- the metal strips are then dried without intermediate rinsing.
- the time between the application of the treatment liquid by the fleece roller and the start of drying should not be less than 1 second and not longer than 15 seconds.
- the drying itself can be carried out, for example, in a forced air oven, as is also the case with conventional no-rinse processes.
- the fleece roller is designed so that the treatment liquid is supplied to the surface through its interior, the rinsing is preferably also carried out via the interior of the fleece roller.
- the process according to the invention has the advantage that even with changing bandwidths, a uniform application of the treatment liquid over the entire bandwidth is made possible. This prevents different areas of the strips from being coated to different extents.
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical Treatment Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Catalysts (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19933186 | 1999-07-15 | ||
| DE19933186A DE19933186A1 (de) | 1999-07-15 | 1999-07-15 | Verfahren zum Auftrag von No-Rinse-Produkten auf laufende Metallbänder |
| PCT/EP2000/006398 WO2001006037A1 (de) | 1999-07-15 | 2000-07-06 | Verfahren zum auftrag von no-rinse-produkten auf laufende metallbänder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1198617A1 true EP1198617A1 (de) | 2002-04-24 |
| EP1198617B1 EP1198617B1 (de) | 2003-03-05 |
Family
ID=7914900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00944008A Expired - Lifetime EP1198617B1 (de) | 1999-07-15 | 2000-07-06 | Verfahren zum auftrag von no-rinse-produkten auf laufende metallbänder |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1198617B1 (de) |
| AT (1) | ATE233831T1 (de) |
| AU (1) | AU5825800A (de) |
| CA (1) | CA2378935A1 (de) |
| DE (2) | DE19933186A1 (de) |
| TR (1) | TR200103548T2 (de) |
| TW (1) | TW469179B (de) |
| WO (1) | WO2001006037A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10027444A1 (de) * | 2000-06-02 | 2002-02-14 | Basf Coatings Ag | Bandbeschichtungsverfahren mit Pulverlackdispersionen (Pulverslurries) |
| DE10115244A1 (de) * | 2001-03-28 | 2002-10-02 | Henkel Kgaa | Nachpassivierung einer phosphatierten Metalloberfläche im Bandverfahren |
| WO2004074511A1 (en) * | 2003-02-21 | 2004-09-02 | Garvan Institute Of Medical Research | Diagnosis and treatment of baff-mediated autoimmune diseases and cancer |
| DE10357912A1 (de) * | 2003-12-11 | 2005-07-14 | Lutz Freyer | Schmiervorrichtung zum Schmieren von Blechstreifen |
| DE102016203771A1 (de) | 2016-03-08 | 2017-09-14 | Henkel Ag & Co. Kgaa | Fluorid-freie Zirkonium-basierte Metallvorbehandlung zur Passivierung |
| WO2020069733A1 (en) | 2018-10-02 | 2020-04-09 | Tata Steel Ijmuiden B.V. | Method for treatment of galvanised or galvannealed steel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425500B2 (de) * | 1972-11-22 | 1979-08-28 | ||
| GB2018632B (en) * | 1978-04-13 | 1982-07-07 | Bicc Ltd | Sheet processing |
| JPH01149972A (ja) * | 1987-12-07 | 1989-06-13 | Kobe Steel Ltd | クロメート処理鋼板の製造方法 |
| US5116672A (en) * | 1990-02-05 | 1992-05-26 | Sermatech International, Inc. | Organic coatings with ion reactive pigments especially for active metals |
-
1999
- 1999-07-15 DE DE19933186A patent/DE19933186A1/de not_active Withdrawn
-
2000
- 2000-06-15 TW TW089111682A patent/TW469179B/zh active
- 2000-07-06 CA CA002378935A patent/CA2378935A1/en not_active Abandoned
- 2000-07-06 AT AT00944008T patent/ATE233831T1/de not_active IP Right Cessation
- 2000-07-06 TR TR2001/03548T patent/TR200103548T2/xx unknown
- 2000-07-06 WO PCT/EP2000/006398 patent/WO2001006037A1/de not_active Ceased
- 2000-07-06 DE DE50001405T patent/DE50001405D1/de not_active Expired - Fee Related
- 2000-07-06 AU AU58258/00A patent/AU5825800A/en not_active Abandoned
- 2000-07-06 EP EP00944008A patent/EP1198617B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0106037A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2378935A1 (en) | 2001-01-25 |
| DE50001405D1 (de) | 2003-04-10 |
| ATE233831T1 (de) | 2003-03-15 |
| TR200103548T2 (tr) | 2002-06-21 |
| EP1198617B1 (de) | 2003-03-05 |
| DE19933186A1 (de) | 2001-01-18 |
| AU5825800A (en) | 2001-02-05 |
| TW469179B (en) | 2001-12-21 |
| WO2001006037A1 (de) | 2001-01-25 |
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