EP0817885B1 - Verschleissteil wie eine leiste oder eine abdeckplatte für saugkästen in der nasspartie einer papiermaschine - Google Patents

Verschleissteil wie eine leiste oder eine abdeckplatte für saugkästen in der nasspartie einer papiermaschine Download PDF

Info

Publication number
EP0817885B1
EP0817885B1 EP96901815A EP96901815A EP0817885B1 EP 0817885 B1 EP0817885 B1 EP 0817885B1 EP 96901815 A EP96901815 A EP 96901815A EP 96901815 A EP96901815 A EP 96901815A EP 0817885 B1 EP0817885 B1 EP 0817885B1
Authority
EP
European Patent Office
Prior art keywords
foil
aluminium
oxide
vacuum box
spray coating
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.)
Expired - Lifetime
Application number
EP96901815A
Other languages
English (en)
French (fr)
Other versions
EP0817885A1 (de
Inventor
Rolf Malmström
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.)
Rm Metal Consulting Ky
Original Assignee
Rm Metal Consulting Ky
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8542814&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0817885(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rm Metal Consulting Ky filed Critical Rm Metal Consulting Ky
Publication of EP0817885A1 publication Critical patent/EP0817885A1/de
Application granted granted Critical
Publication of EP0817885B1 publication Critical patent/EP0817885B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/48Suction apparatus
    • D21F1/483Drainage foils and bars

Definitions

  • the present invention relates to a foil, a vacuum box cover or a corresponding drainage element in the wire section of a paper machine, and to a method for the manufacturing thereof, as defined in the preambles of appended independent claims.
  • the drainage on the wire of a paper machine is brought about by hydrodynamic pressure which is accomplished by drainage elements disposed below the wire, such as foils or vacuum boxes.
  • foils made of metal have been improved by providing the upper surfaces of the foils with special ceramic inserts or upper parts, as shown for instance in Finnish Patent Application No. 935600 (corresponding to WO-A-93/00473).
  • Foils are also made of ceramic materials. These foil constructions are, however, very expensive.
  • JP-A-61-117266 (upon which the preamble of claims 1 and 5 is based) to manufacture sliding material, for use in paper machines, which is resistant to heat shock cracking and breakage.
  • the base material is made of stainless steel or carbon steel, which has a large thermal expansion coefficient.
  • the surface of the sliding material is covered with ceramic material by plasma thermal spraying.
  • the ceramic material has a lower thermal expansion coefficient than the base material.
  • the object is in particular to provide an abrasion-resistant foil or the like the purchase price of which is advantageous.
  • a foil, vacuum box cover or drainage element is according to the present invention made of a pressed, extruded or rolled aluminium profile.
  • the surface of the profile is coated, by means of electrolytic plasma coating, thermic spray coating or detonation spray coating, with a layer of oxide to make the profile durable. Aluminium can easily be extruded into a desired profile and in lengths corresponding to the width of the wire.
  • a method of manufacturing a foil, a vacuum box cover or a corresponding drainage element in the wire section of a paper machine is characterized in that
  • the aluminium profiles are surface treated by means of electrolytic plasma oxidation so that a layer of aluminium oxide, 50 - 400 ⁇ m thick, is deposited on the surface of the profile.
  • the aluminium surface is thus electrolytically coated with a relatively thick layer of aluminium oxide, Al 2 O 3 .
  • the oxide layer produced is hard, abrasion-resistant and forms protection against corrosion by passivating the surface of the profile.
  • Electrolytic plasma oxidation is an environment friendly and energy-saving process.
  • the aluminium profile which, if necessary, is pretreated, pickled and degreased, is immersed in a weak alkalic electrolytic solution, preferably of 0,001 - 0.05 %, and connected to the anode.
  • a voltage of 120 - 380 V is connected to the system.
  • the aluminium oxide surface which is produced tehereby has a low porosity, about 3 %.
  • the aluminium profile can be surface treated by means of thermic spray coating, such as plasma spray coating or detonation spray coating.
  • thermic spray coating powder of metal and/or non-metallic material is converted into molten or plastic condition and sprayed as molten particles onto the surface to be treated.
  • an aluminium profile can be coated with aluminium oxide, chromium oxide, zirconium oxide, aluminium silicate or carbides.
  • the plasma spray coating process utilizes electric energy, whereas the detonation coating process gets the energy needed through combustion.
  • the substrate is held at a low temperature, which in plasma spray coating usually is ⁇ 300°C and in detonation coating is between 50 to 100°C.
  • All substrates normally require some kind of pretreatment for good adherence of the coating.
  • a strong adherence between the substrate and a ceramic material is, however, achieved even without a binding intermediate layer.
  • the adherence corresponds to a value of 100 MPa at least.
  • the plasma spray coating produces a coating having a porosity of about 3 %, whereas the detonation spray coating produces a coating having a porosity of about 1 %.
  • the total cost of foils and vacuum box covers produced according to the invention of surface treated aluminium profiles is considerably lower than the total costs of corresponding foils or vacuum box covers made of steel, plastic and ceramic inserts, as shown for instance in the Finnish Patent Application No. 935600.
  • the aluminium profile is as such cheap and the surface treatment makes it durable.
  • the difference in cost is still greater, if a foil according to the invention is compared with a ceramic foil.
  • FIG. 1 shows a foil box 10 with three foils 12, 14, and 16 made of extruded aluminium profiles.
  • the foils are disposed transverse to the direction of the wire and attached by means of dovetail profiles to supporting members 18, 20, 22 of steel.
  • FIG. 2 shows a vertical cross section of a foil 14 made of an extruded aluminium profile 24.
  • the lower portion of the profile is connected to the supporting member 20 by means of a dovetail joint.
  • the wire 26 bears against the upper surface 28 of the foil.
  • the upper surface of the foil has a 50 - 400 ⁇ m thick outer layer 30 of oxide, which makes the foil abrasion-resistant and hard.

Landscapes

  • Coating By Spraying Or Casting (AREA)
  • Paper (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Claims (8)

  1. Foil, Saugkastendeckel oder entsprechendes Entwässerungselement in der Siebpartie einer Papiermaschine, welches Foil, welcher Saugkastendeckel oder welches Entwässerungselement zumindest teilweise mit einer Oxidschicht überzogen ist, die durch elektrolytische Plasmabeschichtung, thermische Spritzbeschichtung oder Detonations-Spritzbeschichtung erreicht worden ist, dadurch gekennzeichnet, dass das Foil, der Saugkastendeckel oder das Entwässerungselement aus einem gepressten, stranggepressten oder gewalzten Aluminiumprofil (24) gefertigt ist.
  2. Foil, Saugkastendeckel oder entsprechendes Entwässerungselement in der Siebpartie einer Papiermaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Aluminiumprofil (24) zumindest teilweise mit einer 50-400 µm dicken Schicht von Aluminiumoxid (30) überzogen ist, die durch elektrolytische Plasmaoxidation erreicht worden ist.
  3. Foil, Saugkastendeckel oder entsprechendes Entwässerungselement in der Siebpartie einer Papiermaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Aluminiumprofil (24) zumindest teilweise mit einer Oxidschicht (30) überzogen ist, die durch Plasma- oder Detonations-Spritzbeschichtung erreicht worden ist.
  4. Foil, Saugkastendeckel oder entsprechendes Entwässerungselement in der Siebpartie einer Papiermaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Aluminiumprofil zumindest teilweise mit einer Oberflächenschicht (30) überzogen ist, die aus Chromoxid, Aluminiumoxid, Zirconiumoxid und/oder Aluminiumsilikat besteht.
  5. Verfahren zur Herstellung eines Foils, eines Saugkastendeckels oder eines entsprechenden Entwässerungselements in der Siebpartie einer Papiermaschine, dadurch gekennzeichnet, dass
    - die Oberfläche eines Foils, eines Saugkastendeckels oder eines Entwässerungselements, die aus einem gepressten oder stranggepressten Aluminiumprofil gefertigt sind, durch elektrolytische Plasmaoxidation, thermische Spritzbeschichtung oder Detonations-Beschichtung mit einer Oxidschicht überzogen ist.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass das Aluminiumprofil mit einer 50-400 µm dicken Aluminiumoxidschicht durch elektrolytische Plasmaoxidation beschichtet wird.
  7. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass das Aluminiumprofil durch Plasma- oder Detonations-Spritzbeschichtung mit einer Oberflächenschicht überzogen wird, die Aluminiumoxid, Chromoxid, Zirconiumoxid und/oder Aluminiumsilikat enthält.
  8. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass das Aluminiumprofil durch Plasma- oder Detonations-Spritzbeschichtung mit einer Oberflächenschicht überzogen wird, die Karbide enthält.
EP96901815A 1995-02-09 1996-02-08 Verschleissteil wie eine leiste oder eine abdeckplatte für saugkästen in der nasspartie einer papiermaschine Expired - Lifetime EP0817885B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI950559 1995-02-09
FI950559A FI96437C (fi) 1995-02-09 1995-02-09 Kulutukselle altis kappale, kuten foili tai imulaatikon kansi, paperikoneen viiraosassa
PCT/FI1996/000072 WO1996024717A1 (en) 1995-02-09 1996-02-08 A wearing element, such as a foil or a cover of a suctionbox in a paper machine wire section

Publications (2)

Publication Number Publication Date
EP0817885A1 EP0817885A1 (de) 1998-01-14
EP0817885B1 true EP0817885B1 (de) 2001-09-19

Family

ID=8542814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96901815A Expired - Lifetime EP0817885B1 (de) 1995-02-09 1996-02-08 Verschleissteil wie eine leiste oder eine abdeckplatte für saugkästen in der nasspartie einer papiermaschine

Country Status (6)

Country Link
EP (1) EP0817885B1 (de)
JP (1) JPH10513507A (de)
AT (1) ATE205901T1 (de)
DE (1) DE69615351T2 (de)
FI (1) FI96437C (de)
WO (1) WO1996024717A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020125250A1 (de) 2020-09-28 2021-09-09 Voith Patent Gmbh Foil, Saugkastendeckel oder entsprechendes Entwässerungselement mit keramischer Beschichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10130323A1 (de) * 2001-06-22 2003-01-02 Voith Paper Patent Gmbh Verschleisskörper in Schichtverbundbauweise, insbesondere in einer Papier- oder Kartonmaschine, Verfahren zu seiner Herstellung und seine Verwendung
FI118211B (fi) * 2006-05-19 2007-08-31 Metso Paper Inc Staattinen vedenpoistoelin rainanmuodostuskonetta varten sekä menetelmä rainanmuodostuskonetta varten olevan staattisen vedenpoistoelimen pinnoittamiseksi

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020125250A1 (de) 2020-09-28 2021-09-09 Voith Patent Gmbh Foil, Saugkastendeckel oder entsprechendes Entwässerungselement mit keramischer Beschichtung

Also Published As

Publication number Publication date
FI96437B (sv) 1996-03-15
ATE205901T1 (de) 2001-10-15
FI950559A0 (fi) 1995-02-09
DE69615351T2 (de) 2002-07-04
JPH10513507A (ja) 1998-12-22
WO1996024717A1 (en) 1996-08-15
DE69615351D1 (de) 2001-10-25
FI96437C (fi) 1996-06-25
EP0817885A1 (de) 1998-01-14

Similar Documents

Publication Publication Date Title
EP0870868B1 (de) Presswalze mit keramischer Beschichtung für schwierige Korrosionsbedingungen und Verfahren zur Herstellung der Walze
JP4057138B2 (ja) 抄紙機/板紙抄紙機もしくは仕上げ機のロール、その製造方法、およびそのコーティング組成
JP3035312B2 (ja) ヤンキーシリンダ及びヤンキーシリンダをコーテイングする方法
CA2170926C (en) Hardfacing for progressing cavity pump rotors
CN102149850A (zh) 卫浴用品
IL131965A (en) Multilayered coated cutting tool
GB2128551A (en) Scraper with wear-resistant coating
SE519483C2 (sv) Förfarande för framställning av en plan pressyta för framställning av dekorativt laminat utifrån hartsimpregnerat papper
EP2024561B1 (de) Statisches entwässerungsorgan für bahnformiermaschine und verfahren zum abdecken einer für eine bahnformiermaschine konstruiertes statisches entwässerungsorgan
US20080014421A1 (en) Coated cutting tool with anodized top layer and method of making the same
CN102648317A (zh) 刀片涂层
TW353160B (en) Corrosion resistant molybdenum mask
EP0817885B1 (de) Verschleissteil wie eine leiste oder eine abdeckplatte für saugkästen in der nasspartie einer papiermaschine
KR20060123304A (ko) 날이 제공된 공구 및 그 공구의 제조 방법
AU5966386A (en) Wear resistant doctor blade
US20040144514A1 (en) Wear components in a laminar structure in a paper of cardboard machine, and the procedure for its production and usage
EP0520022A1 (de) Rasterwalze mit einer gemusterten schicht in einer galvanischen deckschicht und walzkörper für eine derartige walze.
WO2000006808A3 (en) Surface treatment of steel
CN1184164A (zh) 玻璃质热喷涂覆合层辊及其制法
Sen et al. Boron coating by thermochemical technique and coating properties
Lyashenko Restoration of the machine parts by differential coatings of discrete structure
Morimoto et al. The structure and properties of electrolytically boronized Ni-Cr alloy coatings
Abdullin Surface hardening of steel pieces by composite nickel plate-based deposits
Isobe et al. Alloyed hot dip galvanized steel sheet
Kostiouk et al. Multifunction modulic transformable vacuum plating (coating) and strengthening plant (unit)" Ukraine-K-3"(MMTUVNPU Ukraine-K-3)

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

17P Request for examination filed

Effective date: 19970909

AK Designated contracting states

Kind code of ref document: A1

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

17Q First examination report despatched

Effective date: 19991001

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010919

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010919

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010919

REF Corresponds to:

Ref document number: 205901

Country of ref document: AT

Date of ref document: 20011015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69615351

Country of ref document: DE

Date of ref document: 20011025

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: IBS AUSTRIA GMBH

Effective date: 20020518

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040216

Year of fee payment: 9

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040229

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20040301

Year of fee payment: 9

Ref country code: FR

Payment date: 20040301

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040330

Year of fee payment: 9

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20040212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050208

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050208

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050208

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050901

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050206

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051031