PT96011A - Processo para remocao de revestimentos aplicados por pulverizacao com plasma e sinterizados, empregando jacto de liquido - Google Patents

Processo para remocao de revestimentos aplicados por pulverizacao com plasma e sinterizados, empregando jacto de liquido Download PDF

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Publication number
PT96011A
PT96011A PT96011A PT9601190A PT96011A PT 96011 A PT96011 A PT 96011A PT 96011 A PT96011 A PT 96011A PT 9601190 A PT9601190 A PT 9601190A PT 96011 A PT96011 A PT 96011A
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PT
Portugal
Prior art keywords
liquid
coating
substrate
jet
layer
Prior art date
Application number
PT96011A
Other languages
English (en)
Inventor
Charles C Mccomas
John W Appleby
Gerard A Sileo
Herbert R Barringer
Michael J Patry
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of PT96011A publication Critical patent/PT96011A/pt

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00Selection of abrasive materials or additives for abrasive blasts
    • B24C11/005Selection of abrasive materials or additives for abrasive blasts of additives, e.g. anti-corrosive or disinfecting agents in solid, liquid or gaseous form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/093Cleaning containers, e.g. tanks by the force of jets or sprays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/006Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material without particles or pellets for deburring, removal of extended surface areas or jet milling of local recessions, e.g. grooves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086Descaling; Removing coating films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00Severing by means other than cutting; Apparatus therefor
    • B26F3/004Severing by means other than cutting; Apparatus therefor by means of a fluid jet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (4)

10 r>. ·' 3 REIVINDICAÇÕES 1â.- Processo para a remoção de um revestimento aplicado por pulverização com plasma e sinterizado, utilizando um jacto de líquido, produzido por um dispositivo que possui meios para dirigir o referido jacto, meios para criar uma pressão suficiente para remover o revestimento, meios para estabelecer um movimento relativo entre o revestimento e o jacto líquido e meios para abastecimento do líquido, o qual compreende a) - meios para criar uma pressão suficiente para retirar o revestimento; b) - meios para estabelecer um movimento relativo entre o revestimento e o jacto líquido; c) - meios para abastecimento do líquido; e d) - meios para obrigar o líquido a embater no revestimento, de forma que tal embate provoca a erosão do revestimento até a camada de ligação do revestimento ao substrato ficar exposta; caracterizado pelo facto de nem a camada de ligação do revesti mento ao substrato nem o substrato sofrerem essencialmente qua quer dano e, portanto, poderem ser reutilizados. 2-.- Processo para a remoção de revestimentos escolhidos do grupo formado por revestimentos pulverizados com plasma, revestimentos pulverizados com chama e revestimentos sinterizados, de acordo com a reivindicação 1, caracterizado pelo facto de nem a camada de ligação do substrato ao revestimento nem o substrato serem danificados. 3-.- Processo para a remoção de revestimentos esmeriláveis, de acordo com a reivindicação 1, caracterizado pelo facto de o jacto de líquido ser regulado de maneira que nem a camada de ligação do revestimento ao substrato nem o substrato sejam essencialmente danificados. - 11
4â. - Processo para a remoção de um revestimento que actua como barreira térmica, de acordo com a reivindicação 1, caracte-rizado pelo facto de se controlar o jacto de líquido de modo que nem a ligação do substrato ao primário nem o substrato sejam praticamente danificados. 5S.- Processo para a remoção de um revestimento de material abrasivo, de acordo com a reivindicação 1, caracterizado pelo facto de se controlar o jacto líquido de tal maneira que nem a camada de ligação do substrato ao revestimento nem o substrato sejam praticamente danificados. 6â.- Processo para a remoção de um revestimento superficial duro, de acordo com a reivindicação 1, caracterizado pelo facto de nem a camada de adesão nem o substrato serem praticamente afectados. 7â.- Processo de acordo com a reivindicação 1, caracterizado pelo facto de a pressão do líquido estar compreendida entre cerca de 1400 Kg/cm^ e cerca de 4200 Kg/cm^ (cerca de 20 000 psi e cerca de 60 000 psi). 8â.~ Processo de acordo com a reivindicação 1, caracterizado pelo facto de se utilizar um injector como meio para dirigir a corrente de líquido.
95.- Processo de acordo com a reivindicação 1, caracterizado pelo facto de o líquido empregado ser escolhido do grupo de líquidos que não degradam a camada de primário, e têm uma viscosidade compreendida entre cerca de 0,25 centipoise e cerca de 5,00 centipoise a 25°C e à pressão de 1 atmosfera.
101.- Processo de acordo com a reivindicação 1, caracterizado pelo facto de o líquido empregado ser escolhido do grupo for- 12 A / /
// nado *bor líquidos à base de água. li··- Processo de acordo com a reivindicação 1, caracterizado Delo facto de o líquido utilizado ser essencialmente água. 12a.- Processo de acordo com a reivindicação 1, caracterizado oelo facto de o ângulo entre a corrente de líquido do jacto e o "evestimento estar compreendido entre 20° e 70°, de forma que o referido ângulo obriga a corrente de líquido a remover os fragmentos do revestimento. 13a.- Processo para a remoção da camada de ligação dum revesti-nento utilizando um jacto de líquido produzido por um dispositivo que compreende, meios para dirigir o jacto de líquido, mei-ds para criar uma pressão suficiente para remover a camada de ligação, meios para proporcionar o movimento relativo entre a camada de ligação e o jacto de líquido e meios para abastecimento de líquido, caracterizado pelo facto de compreender as operações que consistem em se obrigar o jacto de líquido a embater na camada de ligação do revestimento ao substrato, provocando a erosão da referida camada de ligação até que o material do substrato fique exposto, de forma que o material do substrato não sofre essencialmente nenhum dano. 14a.- Processo para a remoção da camada de ligação dum revestimento a um substrato, obtido por um método que consiste em pulverização com plasma e deposição de vapor, de acordo com a reivindicação 13, caracterizado pelo facto de o material do substrato não sofrer substancialmente qualquer danificação provocada pelo jacto. Processo de acordo com a reivindicação 13, caracterizado pelo facto de a pressão do líquido estar compreendida entre cer p p a de 1400 Kg/cm e cerca de 4200 Kg/cm (cerca de 20 000 psi e
cerca de 60 000 psi). 16â.- Processo de acordo com a reivindicação 13, caracterizado pelo facto de se utilizar um injector como meio para a orientação da corrente de líquido.
175.- Processo de acordo com a reivindicação 13, caracterizado pelo facto de se escolher o líquido empregado do grupo formado por todos os líquidos que não danificam o material do substrato e que tem uma viscosidade compreendida entre 0,25 centipoise e 5,00 centipoise, 25°C e â pressão de 1 atmosfera. 18â.- Processo de acordo com a reivindicação 13, caracterizado )elo facto de se escolher o líquido utilizado do grupo formado )or líquidos à base de água. I9â.- Processo de acordo com a reivindicação 13, caracterizado pelo facto de se escolher o líquido empregado ser água. 20^.- Processo de acordo com a reivindicação 13, caracterizado pelo facto de o ângulo formado entre o jacto de líquido e a camada de ligação do revestimento com o substrato ficar compreendido entre 20° e 70°, de forma que o citado ângulo obriga o jacto de líquido a remover os fragmentos da camada de primário, Lisboa, 27 de Novembro de 1990
0 Agente Oficial da ProDriedade Industrial
ft.Casvillio, 201-3. E.-10GQ USuOA Telefs. 651339-654613
PT96011A 1989-11-27 1990-11-27 Processo para remocao de revestimentos aplicados por pulverizacao com plasma e sinterizados, empregando jacto de liquido PT96011A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44166689A 1989-11-27 1989-11-27

Publications (1)

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PT96011A true PT96011A (pt) 1991-09-13

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PT96011A PT96011A (pt) 1989-11-27 1990-11-27 Processo para remocao de revestimentos aplicados por pulverizacao com plasma e sinterizados, empregando jacto de liquido

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US (2) US5167721A (pt)
EP (1) EP0430856B1 (pt)
JP (1) JP2742471B2 (pt)
KR (1) KR100198896B1 (pt)
CN (1) CN1027142C (pt)
AU (1) AU642928B2 (pt)
BR (1) BR9005984A (pt)
CA (1) CA2030936C (pt)
DE (1) DE69020507T2 (pt)
ES (1) ES2074151T3 (pt)
FI (1) FI905836A (pt)
HK (1) HK173095A (pt)
IE (1) IE68059B1 (pt)
IL (1) IL96485A (pt)
MX (1) MX172981B (pt)
NO (1) NO905116L (pt)
PT (1) PT96011A (pt)
RU (1) RU2071507C1 (pt)
YU (1) YU226390A (pt)

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JP2742471B2 (ja) 1998-04-22
AU642928B2 (en) 1993-11-04
CN1027142C (zh) 1994-12-28
BR9005984A (pt) 1991-09-24
FI905836A (fi) 1991-05-28
AU6697290A (en) 1991-05-30
CA2030936C (en) 2000-03-28
CA2030936A1 (en) 1991-05-28
FI905836A0 (fi) 1990-11-27
YU226390A (sh) 1993-10-20
IE68059B1 (en) 1996-05-15
USRE35611E (en) 1997-09-23
DE69020507D1 (de) 1995-08-03
KR100198896B1 (ko) 1999-06-15
CN1052264A (zh) 1991-06-19
KR910009344A (ko) 1991-06-28
IE904268A1 (en) 1991-06-05
NO905116D0 (no) 1990-11-27
IL96485A (en) 1994-11-11
ES2074151T3 (es) 1995-09-01
US5167721A (en) 1992-12-01
DE69020507T2 (de) 1996-01-04
EP0430856A1 (en) 1991-06-05
RU2071507C1 (ru) 1997-01-10
MX172981B (es) 1994-01-26
NO905116L (no) 1991-05-28
JPH0463635A (ja) 1992-02-28
HK173095A (en) 1995-11-17
EP0430856B1 (en) 1995-06-28
IL96485A0 (en) 1991-08-16

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