BR9803917A - Monitoração de corrosão. - Google Patents

Monitoração de corrosão.

Info

Publication number
BR9803917A
BR9803917A BR9803917-2A BR9803917A BR9803917A BR 9803917 A BR9803917 A BR 9803917A BR 9803917 A BR9803917 A BR 9803917A BR 9803917 A BR9803917 A BR 9803917A
Authority
BR
Brazil
Prior art keywords
steel sample
coated
test
corrosion
plate
Prior art date
Application number
BR9803917-2A
Other languages
English (en)
Other versions
BR9803917B1 (pt
Inventor
Hajime Iseri
Kuniyuki Takahashi
Yutaka Yoneda
Original Assignee
Kurita Water Ind Ltd
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 Kurita Water Ind Ltd filed Critical Kurita Water Ind Ltd
Publication of BR9803917A publication Critical patent/BR9803917A/pt
Publication of BR9803917B1 publication Critical patent/BR9803917B1/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/04—Corrosion probes
    • G01N17/043—Coupons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

Patente de Invenção: <B>"MONITORAçãO DE CORROSãO". Uma amostra de aço para teste 1 para monitorar a corrosão de um membro de metal sob condições de transferência de calor em uma usina real, é feita do mesmo material daquele do membro de metal da usina real. A amostra de aço para teste 1 é provida com um elemento de aquecimento tipo chapa 4, que é totalmente ligado à superfície traseira da amostra de aço para teste 1pelos adesivos 5. O elemento de aquecimento tipo chapa 4 é uma chapa compreendendo um resistor de aquecimento 2 feito de lâmina metálica fina que é planejada em formato de ziguezague e uma resina sintética de isolamento 4a, onde o resistor de aquecimento 2 é moldado na resina sintética 4a. As extremidades de dois fios condutores revestidos 3 são também moldadas na resina sintética 4a. Os núcleos dos fios condutores revestidos 3 estendem-se até o lado externo das partes revestidas, e são conectados a ambos terminais do resistor de aquecimento 2, respectivamente. A amostra de aço para teste 1 é colocada em contato com fluido corrosivo, e a corrente para o resistor de aquecimento 2 é controlada em um tal modo que a amostra de aço para teste 1 seja submetida às mesmas condições de transferência de calor como aquela do objeto de monitoração. As peças de metal 21, 21', para permitir a monitoração sob condições de simulação do meio ambiente em que o problema de corrosão é suscetível de ocorrer, em uma usina real, são soldados em uma parte de soldagem por pontos 23 e existe uma fissura entre as partes de metal 21, 21'. Uma extremidade de um fio condutor revestido 26 para medição de potencial é conectada à parte de metal 21 por leve soldagem ou similar, e a parte conectada é revestida por material isolante. Um elemento de aquecimento tipo chapa 22 é ligado à superfície externa da peça de metal 21 por adesivos e revestido por material isolante 25. As amostras de aço para teste 31 são imersas em água de teste e o potencial entre um elétrodo de referência 33 e a amostra de aço para teste é medido para monitorar a corrosão.
BRPI9803917-2A 1997-10-15 1998-10-15 método e aparelho para monitoramento de corrosão. BR9803917B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28203597A JP3196707B2 (ja) 1997-10-15 1997-10-15 腐食モニタリング用試験片、方法及び装置

Publications (2)

Publication Number Publication Date
BR9803917A true BR9803917A (pt) 1999-12-28
BR9803917B1 BR9803917B1 (pt) 2009-05-05

Family

ID=17647332

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9803917-2A BR9803917B1 (pt) 1997-10-15 1998-10-15 método e aparelho para monitoramento de corrosão.

Country Status (7)

Country Link
US (1) US6077418A (pt)
EP (1) EP0909945A3 (pt)
JP (1) JP3196707B2 (pt)
KR (1) KR100314301B1 (pt)
CN (1) CN1113232C (pt)
BR (1) BR9803917B1 (pt)
SG (1) SG84515A1 (pt)

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Also Published As

Publication number Publication date
BR9803917B1 (pt) 2009-05-05
KR19990037108A (ko) 1999-05-25
EP0909945A2 (en) 1999-04-21
KR100314301B1 (ko) 2002-01-24
CN1113232C (zh) 2003-07-02
JP3196707B2 (ja) 2001-08-06
CN1220392A (zh) 1999-06-23
EP0909945A3 (en) 2000-10-04
JPH11118703A (ja) 1999-04-30
SG84515A1 (en) 2001-11-20
US6077418A (en) 2000-06-20

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 28/07/2009, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 16A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2275 DE 12-08-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.