EP0050102A1 - An anti-corrosive treatment method for sheet steel and similar articles - Google Patents

An anti-corrosive treatment method for sheet steel and similar articles Download PDF

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Publication number
EP0050102A1
EP0050102A1 EP81850178A EP81850178A EP0050102A1 EP 0050102 A1 EP0050102 A1 EP 0050102A1 EP 81850178 A EP81850178 A EP 81850178A EP 81850178 A EP81850178 A EP 81850178A EP 0050102 A1 EP0050102 A1 EP 0050102A1
Authority
EP
European Patent Office
Prior art keywords
treatment method
corrosive treatment
fibers
sheet steel
adhesive
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.)
Withdrawn
Application number
EP81850178A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kjell Christer Alm
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.)
AB RENATUS
Original Assignee
Renatus AB
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 Renatus AB filed Critical Renatus AB
Publication of EP0050102A1 publication Critical patent/EP0050102A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/12—Applying particulate materials
    • B05D1/14—Flocking
    • 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
    • B05D2202/00—Metallic substrate

Definitions

  • the subject invention concerns an anti--corrosive treatment method for sheet steel, particularly for application in cars, boats, ships and building constructions.
  • Prior-art anti-corrosive treatment methods used for cars suffer from a number of disadvantages.
  • the prior-art anti-corrosive protection layers have a very limited life, and the treatment therefore must be repeated at regular intervals during the serviceable life of the car itself, usually once a year.
  • the extra costs that car owner incur by the necessity of such frequent treatments are quite considerable.
  • the protective effect of the treatments is limited, since none of the treatment methods known provides complete rust protection.
  • the majority of the anti-rust preparations used hitherto are tacky and consequently messy to work with. Grit and other particles also easily adhere to the applied layer.
  • the purpose of the subject invention is to provide a novel anti-corrosive treatment, which is particularly suitable for sheet steel for cars and which does not suffer from any of the drawbacks outlined above.
  • the method in accordance with the invention is characterised by applying on the sheet steel surface intended to be exposed to the anti-corrosive treatment a layer ot a Loft and tough adhesive, and by applying flocking fibers on the adhesive layer by means of an electrostatic application method known per se.
  • the treatment in accordance with the invention provides complete protection and the protective effects have a duration essentially corresponding to the serviceable life of the car.
  • the treatment operation is easy to carry out in practice and the resulting protective layer is neither tacky nor messy. Dirt, grit or other minute particles do not tend to stick or adhere to the protective layer.
  • a layer of flocking fibers 1 has been applied on the surface 4 of the sheet steel 3 with the aid of an adhesive 2.
  • the flocking fibers 1 are anchored to the backing in a manner known per se.
  • the surface of the sheet steel is coated with a layer of an adhesive 2.
  • the sheet steel 3 with the fibers 1 thereon is introduced into an electrostatically magnetic field in which the steel sheet has the positive polarity and the flocking fibers the negative polarity.
  • the fibers are flung onto the steel surface and are secured thereto standing on end.
  • the method of applying and securing flocking fibers is known and used in various fields, such as in interior decoration, for noise-reducing purposes, heat--insulating purposes, just to mention some of numerous fields of application.
  • fhe adhesive used must be soft and tough in order to ensure that no cracks occur in the protective layers when the sheet is exposed to working.
  • Adhesives that have proved suitable in this respect are acrylic dispersion adhesives. Such adhesives meet the demands on function and usefulness when applied on sheet steel used for cars. Acrylic dispersion adhesives have not either any tendencies to crack when the sheets on which they are applied are exposed to bending operations.
  • the flocking fibers should be short, and suitable lengths for the intended purpose have proved to be lengths in the range of between 0.3 and 0.8 millimeters.
  • Nylon fibers are highly suitable on account of the wearing strength of such fibers.
  • Ine ⁇ oft surface imparted in accordance with the invention has the added effect that particles bounce away from the sheet without scratching the steel or the acrylic dispersion layer thereon.
  • the method described in the afore-going has proved to provide a complete anti-corrosive protection coating that possesses excellent wear resistancy. In addition, it neutralizes galvanic flow.
  • the protective coating is easy to keep clean and particles, such as dirt and grit, do not tend to stick to the coating.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
EP81850178A 1980-10-10 1981-10-07 An anti-corrosive treatment method for sheet steel and similar articles Withdrawn EP0050102A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8007113A SE8007113L (sv) 1980-10-10 1980-10-10 Forfarande for rostskyddsbehandling av stalplat och liknande
SE8007113 1980-10-10

Publications (1)

Publication Number Publication Date
EP0050102A1 true EP0050102A1 (en) 1982-04-21

Family

ID=20341958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81850178A Withdrawn EP0050102A1 (en) 1980-10-10 1981-10-07 An anti-corrosive treatment method for sheet steel and similar articles

Country Status (6)

Country Link
EP (1) EP0050102A1 (da)
JP (1) JPS5792181A (da)
DK (1) DK443181A (da)
FI (1) FI813118A7 (da)
NO (1) NO813417L (da)
SE (1) SE8007113L (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0220533A3 (en) * 1985-10-30 1988-03-30 Franz Josef Rath Container for foodstuffs and process for producing the same
US7052741B2 (en) * 2004-05-18 2006-05-30 The United States Of America As Represented By The Secretary Of The Navy Method of fabricating a fibrous structure for use in electrochemical applications
US7211298B2 (en) 1999-08-10 2007-05-01 Sumitomo Corporation Electrostatically fiber planted steel sheet and production process therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218501A (en) * 1979-02-14 1980-08-19 Taiyo Steel Co., Ltd. Electrostatic flock-coated metal sheet with excellent corrosion resistance and fabricability

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218501A (en) * 1979-02-14 1980-08-19 Taiyo Steel Co., Ltd. Electrostatic flock-coated metal sheet with excellent corrosion resistance and fabricability

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0220533A3 (en) * 1985-10-30 1988-03-30 Franz Josef Rath Container for foodstuffs and process for producing the same
US7211298B2 (en) 1999-08-10 2007-05-01 Sumitomo Corporation Electrostatically fiber planted steel sheet and production process therefor
US7052741B2 (en) * 2004-05-18 2006-05-30 The United States Of America As Represented By The Secretary Of The Navy Method of fabricating a fibrous structure for use in electrochemical applications

Also Published As

Publication number Publication date
NO813417L (no) 1982-04-13
JPS5792181A (en) 1982-06-08
FI813118L (fi) 1982-04-11
SE8007113L (sv) 1982-04-11
FI813118A7 (fi) 1982-04-11
DK443181A (da) 1982-04-11

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19821020

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AB RENATUS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840503

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ALM, KJELL CHRISTER