EP0345607A1 - Elément protecteur contre la corrosion pour pièces, notamment pour les pièces de voitures, destinées à être fixées par des vis, boulons, etc. - Google Patents
Elément protecteur contre la corrosion pour pièces, notamment pour les pièces de voitures, destinées à être fixées par des vis, boulons, etc. Download PDFInfo
- Publication number
- EP0345607A1 EP0345607A1 EP89109739A EP89109739A EP0345607A1 EP 0345607 A1 EP0345607 A1 EP 0345607A1 EP 89109739 A EP89109739 A EP 89109739A EP 89109739 A EP89109739 A EP 89109739A EP 0345607 A1 EP0345607 A1 EP 0345607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- corrosion protection
- protection element
- laminate
- layer
- parts
- 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
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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
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
-
- 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
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
Definitions
- the invention relates to a corrosion protection element for parts, particularly automotive parts, to be connected by screws, bolts and the like and consisting at least in part of metal, said corrosion protective element being adapted to be provided between said parts at the juncture thereof and including zinc in layer form.
- Optimum protection from corrosion is obtainable where the parts to be connected are high-grade steel, such as chrome-nickel steel.
- a suitable seal at the juncture between the parts to be connected may be obtained by any sealing compound or sealing tape which will accommodate slight mechnical movements. This kind of protection from corrosion is very expensive, however.
- this object is achieved by a laminate comprising two high-purity zinc foils providing cathodic anticorrosive action, said foils being disposed in a mutually overlying relationship and having therebetween a layer of an elastic sealing material, said laminate conforming in an optimum manner to and sealing the gap between the parts to be connected as these parts are being connected with each other.
- the zinc foils be adhered to the layer of sealing material by means of adhesive layers.
- the laminate may have any desired geometric shape in plan view. It is preferred that the laminate be manufactured in a continuous or strand form.
- the elastomer may be a paste composition on the basis of polyisobutylene, (butyl) or polyurethane, for instance, or may be present in the form of a closed-cell foam adhesive tape.
- the closed-cell form adhesive tape may be acrylic foam or a neoprene or polyether tape, for example.
- the laminate accept automotive body paints.
- the inventive corrosion protection element In a one-year long-term test of a test vehicle under corrosion promoting conditions corresponding to a vehicle life of about ten years in a normal environment, the inventive corrosion protection element was found not to be damaged or wear, and no corrosion was found in the areas where attachments were connected. As a result, the inventive corrosion protection element provides excellent protection from corrosion as well as an excellent seal particularly between screwed-on attachments and the substrate, such as fenders and the automobile body to which they are attached.
- the permanently elastic adhesive layer of the laminate provides for easy application of the inventive corrosion protection element in the vicinity of the bores provided in the attachments. As the screws are tightened, the laminate will in an optimum manner conform to and seal the gap between the parts to be joined, permanently sealing that gap.
- the zinc provides for cathodic anticorrosive action in the gap and on the bore walls.
- the entire laminate is permanently elastic, it exhibits long life and stability against aging despite relative movements between the joined parts. Because of its advantages in the assembly process and the permanent anticorrosive effect, the inventive corrosion protection element is most cost-effective.
- the adhesive-protecting liner protects the permanently elastic self-adhesive layer from soiling before the laminate is put to use.
- the inventive corrosion protection element has major advantages particularly in the automotive, naval, and aircraft industries and for stationary installations which require permanent stability in a humid environment.
- the corrosion protection element comprises a laminate 1 which may be manufactured in a continuous form and has two spaced high-purity zinc foils 2 having therebetween a layer 3 of an elastic adhesive sealing material engaging the facing sides of foils 2.
- a layer 4 of a permanently elastic adhesive is provided on the opposite side of lower zinc foil 2 (Fig. 1). In the storage condition of the corrosion protection element, that layer 4 is covered by an adhesive-protecting liner 5 which may be stripped away readily before use.
- Fig. 2 shows the use of the corrosion protection element for fastening a fender 6 to the wheel case of a vehicle body 7.
- adhesive-protecting line 5 is stripped from laminate 1, and the latter is applied with the self-adhesive surface of layer 4 of permanently elastic adhesive down on vehicle body 7 above bores 9 (in Fig. 2).
- fender 6 is fitted to the wheel case in vehicle body 7 and to the corrosion protection element placed thereon, and threaded bolts 10 are introduced in bores 9 and tightened to secure the fender to the wheelcase.
- laminate 1 of the corrosion protection element conforms in an optimum manner to and permanently seals the juncture 11 between fender 6 and wheel case 7.
- High-purity zinc foils 2 of lamnate 1 provide cathodic anticorrosive action in area 11 and in bores 9. Because of the permanent elasticity of the corrosion protection element, that element itself and the connection between the joined vehicle parts show a long life and a high stability against aging despite relative movements of fender 6 and the wheel case of vehicle body 7 during vehicle operation.
- the self-adhesive coating of laminate 1 and the deformability of layer 3 of an elastic adhesive sealing material provide for easy assembly of the corrosion protection element and for easy installation of fender 6 on wheel case 7 of the vehicle body.
- Fig 3 shows another example of the use of the inventive element on a roofed bicycle stand, which comprises supporting structure of steel beams 13 which is maintained in the assembled condition by means of threaded bolt-and-nut fastener combinations 14 provided adjacent sheet-metal roof sections 15.
- the inventive laminate 1 is provided above and below fastener combinations 14 to seal joint 16.
- corrosion will be caused by the slight but unavoidable relative movements of the connected parts that are caused by wind and other mechanical forces acting on the stand.
- a multi-layer construction consisting of the following materials including dimensional data: Material Description Dimensions Zinc Foil Matt Silver 99.5 purity .075 mm thickness Sealant Grey paste of Polybuten type 1.645 mm thickness Zinc Foil Matt Silver 99.5 purity .075 mm thickness Adhesive Modified acrylate .125 mm thickness Liner Siliconized protection paper .080 mm thickness Total thickness 2.000 mm Width 8.000 mm Total length 1.0 m Initial adhesion (AFER A-steel, 180° peel 300 mm/min) > 20 N/25 mm Weight/area (without liner) 0.50 +/- 0.05 grs/cm2
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
- Laminated Bodies (AREA)
- Gasket Seals (AREA)
- Body Structure For Vehicles (AREA)
- Bolts, Nuts, And Washers (AREA)
- Connection Of Plates (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3819495 | 1988-06-08 | ||
DE3819495A DE3819495C1 (fr) | 1988-06-08 | 1988-06-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0345607A1 true EP0345607A1 (fr) | 1989-12-13 |
EP0345607B1 EP0345607B1 (fr) | 1992-09-09 |
Family
ID=6356123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89109739A Expired - Lifetime EP0345607B1 (fr) | 1988-06-08 | 1989-05-30 | Elément protecteur contre la corrosion pour pièces, notamment pour les pièces de voitures, destinées à être fixées par des vis, boulons, etc. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0345607B1 (fr) |
JP (1) | JPH0277371A (fr) |
KR (1) | KR910001267A (fr) |
CA (1) | CA1339407C (fr) |
DE (1) | DE3819495C1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8944351B2 (en) | 2011-05-06 | 2015-02-03 | Saint-Gobain Abrasives, Inc. | Paint cup assembly with an outlet valve |
US9162240B2 (en) | 2004-12-16 | 2015-10-20 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie | Liquid container system for a spray gun |
CN106132693A (zh) * | 2014-04-17 | 2016-11-16 | 乔治·马丁有限公司 | 阶梯式中间层(层压公差补偿片) |
US9586220B2 (en) | 2011-06-30 | 2017-03-07 | Saint-Gobain Abrasives, Inc. | Paint cup assembly |
US10035156B2 (en) | 2006-06-20 | 2018-07-31 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US10882064B2 (en) | 2011-12-30 | 2021-01-05 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs | Convertible paint cup assembly with air inlet valve |
US11040360B2 (en) | 2006-06-20 | 2021-06-22 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH068162U (ja) * | 1992-07-08 | 1994-02-01 | 三菱自動車工業株式会社 | パネルのシール構造 |
DE4328716B4 (de) * | 1992-09-04 | 2005-09-22 | Volkswagen Ag | Kraftfahrzeug |
DE4305683A1 (de) * | 1993-02-24 | 1994-08-25 | Daetwyler Ag | Vorhangplatte für Gebäude |
DE29801049U1 (de) * | 1998-01-22 | 1998-04-30 | Emhart Inc., Newark, Del. | Karosseriebauteil mit einer Zinn-Zink-Beschichtung |
US8124182B2 (en) * | 2007-06-15 | 2012-02-28 | The Boeing Company | Application of insulating coating |
DE102014108183B4 (de) | 2014-06-11 | 2024-02-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Mehrschichtige Karosseriestruktur einer Kraftfahrzeugkarosserie und Verfahren zur Herstellung der mehrschichtigen Karosseriestruktur |
DE102021120191A1 (de) | 2021-08-03 | 2023-02-09 | Denso-Holding Gmbh & Co. | Korrosionsschutzband umfassend mindestens vier Lagen |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3813315A (en) * | 1968-12-18 | 1974-05-28 | Valyi Emery I | Method of laminating plastic to metal |
FR2247547A1 (en) * | 1973-10-12 | 1975-05-09 | Peugeot | Protection against corrosion using a sacrificial metal - esp for assemblies on the underframe of motor cars |
GB1474413A (en) * | 1973-04-19 | 1977-05-25 | Bagnulo L | Adhesive sacrificial anode for cathodic protection |
FR2418279A1 (fr) * | 1978-02-22 | 1979-09-21 | Volkswagenwerk Ag | Couche de protection cathodique contre la corrosion de surfaces de joint de pieces reunies, en particulier de toles de carrosserie |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61179886A (ja) * | 1985-02-05 | 1986-08-12 | Daihatsu Motor Co Ltd | 防食方法 |
-
1988
- 1988-06-08 DE DE3819495A patent/DE3819495C1/de not_active Expired
-
1989
- 1989-05-30 EP EP89109739A patent/EP0345607B1/fr not_active Expired - Lifetime
- 1989-06-07 KR KR1019890007894A patent/KR910001267A/ko not_active Application Discontinuation
- 1989-06-07 JP JP1145055A patent/JPH0277371A/ja active Pending
- 1989-06-07 CA CA000601995A patent/CA1339407C/fr not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3813315A (en) * | 1968-12-18 | 1974-05-28 | Valyi Emery I | Method of laminating plastic to metal |
GB1474413A (en) * | 1973-04-19 | 1977-05-25 | Bagnulo L | Adhesive sacrificial anode for cathodic protection |
FR2247547A1 (en) * | 1973-10-12 | 1975-05-09 | Peugeot | Protection against corrosion using a sacrificial metal - esp for assemblies on the underframe of motor cars |
FR2418279A1 (fr) * | 1978-02-22 | 1979-09-21 | Volkswagenwerk Ag | Couche de protection cathodique contre la corrosion de surfaces de joint de pieces reunies, en particulier de toles de carrosserie |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9162240B2 (en) | 2004-12-16 | 2015-10-20 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie | Liquid container system for a spray gun |
US10035156B2 (en) | 2006-06-20 | 2018-07-31 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US11040360B2 (en) | 2006-06-20 | 2021-06-22 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US11548018B1 (en) | 2006-06-20 | 2023-01-10 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US11679399B2 (en) | 2006-06-20 | 2023-06-20 | Saint-Gobain Abrasives, Inc. | Liquid supply assembly |
US8944351B2 (en) | 2011-05-06 | 2015-02-03 | Saint-Gobain Abrasives, Inc. | Paint cup assembly with an outlet valve |
US8998018B2 (en) | 2011-05-06 | 2015-04-07 | Saint-Gobain Abrasives, Inc. | Paint cup assembly with an extended ring |
US9335198B2 (en) | 2011-05-06 | 2016-05-10 | Saint-Gobain Abrasives, Inc. | Method of using a paint cup assembly |
US9586220B2 (en) | 2011-06-30 | 2017-03-07 | Saint-Gobain Abrasives, Inc. | Paint cup assembly |
US10882064B2 (en) | 2011-12-30 | 2021-01-05 | Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs | Convertible paint cup assembly with air inlet valve |
CN106132693A (zh) * | 2014-04-17 | 2016-11-16 | 乔治·马丁有限公司 | 阶梯式中间层(层压公差补偿片) |
Also Published As
Publication number | Publication date |
---|---|
DE3819495C1 (fr) | 1989-11-23 |
EP0345607B1 (fr) | 1992-09-09 |
CA1339407C (fr) | 1997-09-02 |
KR910001267A (ko) | 1991-01-30 |
JPH0277371A (ja) | 1990-03-16 |
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