EP1695768A1 - Procédé pour la protection temporaire de surfaces nues contre la corrosion et élément comportant une protection temporaire contre la corrosion - Google Patents

Procédé pour la protection temporaire de surfaces nues contre la corrosion et élément comportant une protection temporaire contre la corrosion Download PDF

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Publication number
EP1695768A1
EP1695768A1 EP20060110241 EP06110241A EP1695768A1 EP 1695768 A1 EP1695768 A1 EP 1695768A1 EP 20060110241 EP20060110241 EP 20060110241 EP 06110241 A EP06110241 A EP 06110241A EP 1695768 A1 EP1695768 A1 EP 1695768A1
Authority
EP
European Patent Office
Prior art keywords
film
protective layer
corrosion
self
healing
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
Application number
EP20060110241
Other languages
German (de)
English (en)
Other versions
EP1695768B1 (fr
Inventor
Frank Resch
René Kunz
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP20060110241 priority Critical patent/EP1695768B1/fr
Publication of EP1695768A1 publication Critical patent/EP1695768A1/fr
Application granted granted Critical
Publication of EP1695768B1 publication Critical patent/EP1695768B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F15/00—Other methods of preventing corrosion or incrustation
    • 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
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B05D1/322—Removable films used as masks
    • B05D1/325—Masking layer made of peelable film
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • 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
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe
    • 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
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe
    • B05D2202/15—Stainless steel
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]

Definitions

  • the invention relates to a method for temporary protection of bare surfaces against corrosion and a component with a surface protected against corrosion.
  • Corrosion is a known problem.
  • the flow of electrons may be interrupted by changing the chemical composition of the materials involved, or by separating the material to be protected from corrosion from the electrolyte (for example, salty water).
  • the electrolyte for example, salty water
  • Such protective layers are typically based on paints, organic coatings, ceramic and inorganic coatings, plastic coatings, precious metal deposits, etc.
  • coatings such as zinc, aluminum and magnesium based metals, are characterized by the tendency to accelerate to corrode as the surface to be protected (these layers are therefore also referred to as sacrificial layers).
  • Anti-rust agents typically alter the surface chemistry and form a kind of intermediate layer.
  • the surface passivation mentioned at the beginning is typically done by applying or producing an oxide layer.
  • a bare surface is protected by a corrosion inhibitor which is applied or sprayed onto the surface.
  • a corrosion inhibitor which is applied or sprayed onto the surface.
  • a means is used for this purpose, which is marketed under the name Tectyl®.
  • This agent is characterized by a good corrosion protection, but has the disadvantage that it is difficult to remove.
  • a protective means which can be removed without residue again only with effort, only conditionally.
  • the sacrificial layers mentioned at the outset are also unsuitable for temporary protection since they have the disadvantage that they form an intimate connection with the surface to be protected are received and no longer, or only with great editing effort, are removable again. In addition, they change the properties of the bare surface and thus can not be used in guide rails, drive shafts and the like.
  • a first method according to the invention can be found in the independent claim 1.
  • the method is characterized in that protecting bare surfaces against corrosion is a multilayer protection system used, which is applied in the following steps and removed if necessary.
  • a corrosion protection film is applied to a bare surface to be protected.
  • This corrosion protection film is at least partially covered by the application of a self-healing, semi-solid protective layer. These two layers form the multilayer protection system. If necessary, the protection system is removed again. At least a portion of the bare surface is exposed by peeling off at least a portion of the anti-corrosion foil. At the same time, the protective layer is removed with the anti-corrosion foil.
  • the self-healing protective layer forms a closed film and the protective system comprises hydrophobic components to prevent moisture from penetrating to the bare surface to be protected.
  • the invention relates to a method for temporarily protecting smooth surfaces which tend to corrode.
  • the inventive approach will be described below with reference to a method example, wherein subsequently further methods are explained with reference to the first method example.
  • FIG. 1 It is a method for temporary protection of bare surfaces 11.1 against corrosion. The following steps are performed to provide a protection system that develops the desired protection.
  • a corrosion protection film 12 is applied to the exposed bare surface 11.1.
  • the illustration was deliberately chosen so that the anti-corrosion film 12 is visible.
  • a self-healing, semi-solid protective layer 13 is applied. This protective layer 13 is applied so that it at least partially covers the anticorrosive film 12, as can be seen in Fig. 1.
  • the anticorrosion film 12, together with the protective layer 13, forms an intelligent protection system, the structure and effect of which will be explained in later sections.
  • the component for example a guide rail 10
  • the component is protected against corrosion in the region of the smooth surface 11.1.
  • the component can now be stored and transported as desired.
  • the bare surface 11.1 may be exposed again by peeling off at least a portion of the anti-corrosion film 12.
  • the protective layer 13 can be easily combined with the Remove corrosion protection film 12. With a suitable choice of corrosion protection film 12, this neither a tool nor a special machine is required.
  • the corrosion protection film 12 can be easily removed without residues.
  • a further method according to the invention is described below with reference also to FIGS. 3A and 3B.
  • it is a guide rail 10, as used for example in elevator construction.
  • the rail 10 has a T-shaped cross-section.
  • the two opposite side surfaces of the web of the rail 10 serve as a guide for an elevator car or a counterweight.
  • One of the two opposite side surfaces is designated 11.1 in FIG. 3A.
  • the other side surface of the bridge is not visible. To ensure proper operation of the lift system, it is important that these side surfaces are bare. This means that these running surfaces 11.1 must have neither rust, nor residues of rust inhibitors nor mechanical damage. This is essential above all when it comes to emergency braking of the elevator car, since in this case braking means act directly on the running surfaces 11.1.
  • the anticorrosive film 12 is applied only to those areas of the bare surface 11.1, which must later be exposed again.
  • FIG. 3A it can be seen that the anticorrosion film 12 is strip-shaped and extends over the entire surface 11. 1 parallel to a longitudinal axis of the rail 10. The other surfaces of the rail 10 are not covered with the film 12.
  • the self-healing protective layer 13 is applied, this protective layer 13 then covering not only the anti-corrosion film 12 but also adjacent regions of the rail 10.
  • the protective layer 13 covers all sides of the entire web of the T-shaped rail 10. The protective layer 13 extends into the right-angled transition area between the web and the transverse plate of the T-beam.
  • the shape of the predetermined area is defined by the shape of the anticorrosion film 12.
  • the protective layer 13 is characterized in that it is self-healing and forms a closed film. Furthermore, the anticorrosion film 12 and / or the protective layer 13 comprise hydrophobic constituents in order to prevent moisture from penetrating to the bare surface 11. 1 to be protected. In addition, the hydrophobic features cause water to be displaced.
  • the anticorrosion film 12 is characterized in that it builds up a strong adhesive bond to bare surfaces, in particular bare metallic surfaces. On the one hand, this leads to good adhesion of the anticorrosive film 12 to the bare surface and, on the other hand, this results in a blocking effect between the bare surface 11.1 and the anticorrosive film 12. This blocking effect can prevent the penetration of moisture.
  • the self-healing (self-balancing) protective layer 13 is particularly distinctive in that it forms a dense, closed film.
  • the protective layer 13 forms a kind of closed membrane, which is preferably made moisture-repellent.
  • the film preferably has a thickness of between 10 ⁇ m and 500 ⁇ m in order to achieve the desired protective effect.
  • the self-healing protective layer 13 preferably comprises a thixotropic agent to thereby form the dense, closed film during application, on the one hand, and to provide protection against damage by automatically closing the film after a local mechanical disturbance 13.1, as indicated in FIG. 2A.
  • FIG. 2A shows a snapshot after the occurrence of a local mechanical disturbance 13.1.
  • the disturbance may, for example, have been caused during transport of the component 10 by touching it with a tool or the like.
  • Fig. 2B the same component 10 is shown a short time later. Due to the self-healing effect of the protective layer 13, the location of the disturbance 13.1 has automatically closed. This point is designated in FIG. 2B with 13.2.
  • the closure of the disturbance 13.1 can take place, for example, by the protective layer 13 slowly flowing in and the open position closing again. Further details on the self-healing effect and the thixotropic agent used in this connection are given below.
  • thixotropic refers to a reversible transition from a gel or galert-like state to a solid state. This transition is reversible. In the case of a thixotropic material, the viscosity is reduced when, for example, shear forces are applied.
  • thixotropic is understood below to mean the setting of the protective layer 13 in a plastic state with the addition of thickening agents, too Called thixotropic agent. In this state, the otherwise very liquid protective layer 13 can be adjusted so viscous that it can be processed easily on vertical components 10 and does not expire.
  • the thixotropically-adjusted protective layer 13 has the property of being at rest like a gel and, when stirred or processed, like a viscous liquid. If there is a local disturbance, as indicated in FIG. 2A, the thixotropic agent reduces the viscosity in the region of the disturbance 13.1 and the protective layer 13 compensates for the disturbance, as shown in FIG. 2B.
  • the present invention is based in a particular embodiment on a passivation of the surface to be protected 11.1. This results in an inhibition of corrosion.
  • the protective film 12 and / or the protective layer 13 comprise a carrier material and one or more pH buffer components (buffering agents). These buffering contents are chosen to maintain the (metal) surface 11.1 to be protected near a pH where the surface is passive to corrosion.
  • the pH according to the invention is adjusted to a range between 8 and 13 pH.
  • the protection system of protective film 12 and protective layer 13 is basically adjusted.
  • protective films 12 and / or protective layers 13 which have corrosion-inhibiting constituents which are suitable for inhibiting the corrosion of the surface 11.1 in the presence of moisture or in the presence of other substances which promote corrosion.
  • the anticorrosive ingredients coact with the buffering ingredients.
  • protective films 12 and / or protective layers 13 which have water-repellent (hydrophobic) components in order to prevent water from coming into contact with the surface 11.1.
  • hydrophobically acting components for example, aluminum silicate and / or wax and / or oil can be used.
  • Particularly suitable are synthetic oils and / or refined microcrystalline waxes.
  • the protective system according to the invention comprising protective film 12 and protective layer 13 comprises one or more of the constituents mentioned.
  • the protective film 12 comprises a flexible carrier material which is suitable for receiving the buffers and / or other constituents.
  • a flexible carrier material Particularly suitable as a film are: polymer material, polyacrylic, silicone, polyurethane, vinyl polymer, or polyvinyl acetate, to name a few examples.
  • the protective layer 13 has a special carrier component in order to give the protective layer 13 a film-like or gel-like consistency.
  • a carrier component in order to give the protective layer 13 a film-like or gel-like consistency.
  • it is a waxy carrier component and forms a flexible, dense wax film after curing. After application or spraying, the thixotropic property of the protective layer 13 is used and acts against the ingress of moisture and / or liquid as described.
  • said constituents are dispersed or deposited in the carrier material (in the case of the protective film 12) or carrier component (in the case of the protective layer 13).
  • an intelligent corrosion protection system which, in contrast to the prior art, on the one hand offers good protection and on the other hand can be removed again without problems and effortlessly.
  • the surfaces to be protected 11.1 are not only passivated if buffer constituents are used, or protected against ingress of moisture, if hydrophobic components are used, or reduces or prevents corrosion, if corrosion inhibiting components are used, but it becomes an effective overall protection which brings together the positive characteristics of multiple protective mechanisms in an unprecedented manner.
  • the entire protection system is based on materials that are environmentally friendly.
  • the application and removal is so executable that no chemicals must be used. There is also no increased energy consumption necessary because no hot air systems or grinding machines are needed.
  • the intelligent nature of the protection system according to the invention is realized by the combination of two protection means 12, 13.
  • the protective film 12 acts inter alia as a water-repellent (hydrophobic) and / or waterproof barrier layer or intermediate barrier layer. If the protective layer 13 and the protective film 12 are injured, the components which are present in the protective layer 13 and / or the protective film 12 are used.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Laminated Bodies (AREA)
EP20060110241 2005-02-23 2006-02-21 Procédé pour la protection temporaire de surfaces nues contre la corrosion et élément comportant une protection temporaire contre la corrosion Active EP1695768B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20060110241 EP1695768B1 (fr) 2005-02-23 2006-02-21 Procédé pour la protection temporaire de surfaces nues contre la corrosion et élément comportant une protection temporaire contre la corrosion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05003818 2005-02-23
EP20060110241 EP1695768B1 (fr) 2005-02-23 2006-02-21 Procédé pour la protection temporaire de surfaces nues contre la corrosion et élément comportant une protection temporaire contre la corrosion

Publications (2)

Publication Number Publication Date
EP1695768A1 true EP1695768A1 (fr) 2006-08-30
EP1695768B1 EP1695768B1 (fr) 2010-11-03

Family

ID=34933882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060110241 Active EP1695768B1 (fr) 2005-02-23 2006-02-21 Procédé pour la protection temporaire de surfaces nues contre la corrosion et élément comportant une protection temporaire contre la corrosion

Country Status (15)

Country Link
US (1) US8197628B2 (fr)
EP (1) EP1695768B1 (fr)
JP (1) JP2006231327A (fr)
KR (1) KR101261049B1 (fr)
CN (1) CN1824836B (fr)
AT (1) ATE486667T1 (fr)
AU (1) AU2006200738B2 (fr)
BR (1) BRPI0600400B1 (fr)
CA (1) CA2537003C (fr)
DE (1) DE502006008204D1 (fr)
DK (1) DK1695768T3 (fr)
ES (1) ES2354827T3 (fr)
HK (1) HK1094880A1 (fr)
NO (1) NO338565B1 (fr)
ZA (1) ZA200601422B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102876095A (zh) * 2012-10-19 2013-01-16 大连广汇科技有限公司 一种蜡膜防锈油及其制备方法
EP2766510A4 (fr) * 2011-10-13 2015-08-19 Otis Elevator Co Rail de guidage pour ascenseur

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080210495A1 (en) * 2005-04-20 2008-09-04 Fargo Richard N Removable Corrosion Protection on an Elevator Guide Rail
US20150136532A1 (en) * 2012-07-16 2015-05-21 Otis Elevator Company Two-part sheet metal elevator guiderail
CN105705449A (zh) * 2013-11-08 2016-06-22 奥的斯电梯公司 用于电梯的导轨
CN105964511A (zh) * 2016-05-17 2016-09-28 哈尔滨电机厂有限责任公司 精加工金属件采用无溶剂去除防锈材料包装的工艺方法
CN115108810A (zh) * 2022-06-01 2022-09-27 江苏苏嘉集团新材料有限公司 一种耐火砖加工用具有防护效果的制造方法

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US4792464A (en) * 1987-06-01 1988-12-20 Martenson Irvin W Corrosion coating composition
DE4110136A1 (de) * 1991-03-27 1992-10-01 Angyal Paul V Lacksystem und verfahren zum erzeugen von folienartig abziehbaren, filmfoermigen beschichtungen mit unvernetzten polymeren
US5464692A (en) * 1993-06-17 1995-11-07 Quality Manufacturing Incorporated Flexible masking tape
DE10231002A1 (de) * 2002-07-09 2004-01-22 Röth, Olaf Verfahren zum Trocknen von flüssig aufgetragenen Beschichtungen (Schutzaufträge-Folien) auf Bauteile und oder Karosserien

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US5153032A (en) * 1986-01-13 1992-10-06 Ashland Oil, Inc. Coating compositions and method for forming a self-healing corrosion preventative film
US5055346A (en) * 1988-08-30 1991-10-08 Frank Rohrbacher Thermoplastic acrylic polymer coated composite structure
US5126005A (en) * 1990-08-31 1992-06-30 The Boeing Company Process for eliminating pits during chemical milling
WO1998033857A1 (fr) * 1997-01-31 1998-08-06 Elisha Technologies Co. L.L.C. Revetements anti-corrosion
US5888281A (en) * 1997-08-22 1999-03-30 Daubert Chemical Company, Inc. Corrosion inhibiting composition
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US20080210495A1 (en) * 2005-04-20 2008-09-04 Fargo Richard N Removable Corrosion Protection on an Elevator Guide Rail
EP1930280A1 (fr) * 2006-12-07 2008-06-11 Inventio Ag Dispositif de freinage et rail de guidage d'un ascenseur avec surface de freinage trapézoïdale

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Publication number Priority date Publication date Assignee Title
US4224379A (en) * 1977-12-08 1980-09-23 Toyo Seikan Kaisha, Ltd. Peelable bonded structures and process for preparing same
US4792464A (en) * 1987-06-01 1988-12-20 Martenson Irvin W Corrosion coating composition
DE4110136A1 (de) * 1991-03-27 1992-10-01 Angyal Paul V Lacksystem und verfahren zum erzeugen von folienartig abziehbaren, filmfoermigen beschichtungen mit unvernetzten polymeren
US5464692A (en) * 1993-06-17 1995-11-07 Quality Manufacturing Incorporated Flexible masking tape
DE10231002A1 (de) * 2002-07-09 2004-01-22 Röth, Olaf Verfahren zum Trocknen von flüssig aufgetragenen Beschichtungen (Schutzaufträge-Folien) auf Bauteile und oder Karosserien

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2766510A4 (fr) * 2011-10-13 2015-08-19 Otis Elevator Co Rail de guidage pour ascenseur
CN102876095A (zh) * 2012-10-19 2013-01-16 大连广汇科技有限公司 一种蜡膜防锈油及其制备方法

Also Published As

Publication number Publication date
US20060199017A1 (en) 2006-09-07
ATE486667T1 (de) 2010-11-15
KR20060094036A (ko) 2006-08-28
CA2537003C (fr) 2013-04-30
BRPI0600400B1 (pt) 2016-07-26
US8197628B2 (en) 2012-06-12
AU2006200738B2 (en) 2011-06-09
JP2006231327A (ja) 2006-09-07
DE502006008204D1 (de) 2010-12-16
CN1824836A (zh) 2006-08-30
AU2006200738A1 (en) 2006-09-07
CA2537003A1 (fr) 2006-08-23
EP1695768B1 (fr) 2010-11-03
NO338565B1 (no) 2016-09-05
ZA200601422B (en) 2007-04-25
BRPI0600400A (pt) 2006-10-24
NO20060866L (no) 2006-08-24
DK1695768T3 (da) 2011-02-14
CN1824836B (zh) 2012-08-29
HK1094880A1 (en) 2007-04-13
ES2354827T3 (es) 2011-03-18
KR101261049B1 (ko) 2013-05-06

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