BR112013015691A2 - corrosion resistance tester - Google Patents

corrosion resistance tester

Info

Publication number
BR112013015691A2
BR112013015691A2 BR112013015691A BR112013015691A BR112013015691A2 BR 112013015691 A2 BR112013015691 A2 BR 112013015691A2 BR 112013015691 A BR112013015691 A BR 112013015691A BR 112013015691 A BR112013015691 A BR 112013015691A BR 112013015691 A2 BR112013015691 A2 BR 112013015691A2
Authority
BR
Brazil
Prior art keywords
corrosion
days
corrosion resistance
cathode
evaluator
Prior art date
Application number
BR112013015691A
Other languages
Portuguese (pt)
Inventor
Lorenzo Fred Pelosi
Robert C Nahas
Shi Hua Zhang
Original Assignee
Coatings Foreign Ip Co Llc
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 Coatings Foreign Ip Co Llc filed Critical Coatings Foreign Ip Co Llc
Publication of BR112013015691A2 publication Critical patent/BR112013015691A2/en

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
    • G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement

Landscapes

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

Abstract

avaliador de resistência à corrosão a presente invenção é direcionada a um avaliador de resistência à corrosão adequado para testar a corrosão de substratos de metal tais como carrocerias de automóvel em uma taxa acelerada. um avaliador de resistência à corrosão provido de uma câmara contendo eletrólito à qual são expostos anodo e cátodo revestidos com revestimento protetor que estão sendo testados. esses revestimentos são providos de defeitos padronizados e pré-determinados, tais como micro-furos para acelerar a corrosão do substrato de metal subjacente de modo prevísivel e repetível. o par de cátodo / anodo revestido é submetido a um período de arranque seguido por uma série de voltagens dc pré-estabelecidas moduladas de maneira triangular, triangular truncada ou trapezoidal para durações pré-estabelecidas que são interespaçadas com períodos de recuperação. os dados de impedância coletados são em seguida usados para chegar na resistência de desempenho à corrosão do revestimento aplicado sobre o par catodo/ anodo. o avaliador antecedente reduz substancialmente o tempo necessário para testar corrosão a partir de diversos dias ( 40 dias extras) para poucos dias (aproximadamente dois dias).Corrosion Resistance Evaluator The present invention is directed to a corrosion resistance evaluator suitable for testing the corrosion of metal substrates such as car bodies at an accelerated rate. a corrosion resistance tester provided with a chamber containing electrolyte to which a protective coating coated anode and cathode are being exposed. These coatings are provided with predetermined standard defects such as micro-holes to accelerate the predictable and repeatable corrosion of the underlying metal substrate. The coated cathode / anode pair is subjected to a start-up period followed by a series of triangular, truncated triangular or trapezoidal modulated preset dc voltages for preset durations that are interspersed with recovery periods. The collected impedance data is then used to arrive at the corrosion performance resistance of the coating applied on the cathode / anode pair. The prior evaluator substantially reduces the time required to test corrosion from several days (40 extra days) to a few days (approximately two days).

BR112013015691A 2010-12-21 2011-12-21 corrosion resistance tester BR112013015691A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201061425454P 2010-12-21 2010-12-21
PCT/US2011/066622 WO2012088335A2 (en) 2010-12-21 2011-12-21 Corrosion resistance evaluator

Publications (1)

Publication Number Publication Date
BR112013015691A2 true BR112013015691A2 (en) 2016-10-11

Family

ID=46314905

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013015691A BR112013015691A2 (en) 2010-12-21 2011-12-21 corrosion resistance tester

Country Status (7)

Country Link
EP (1) EP2656046A4 (en)
JP (1) JP2014505242A (en)
CN (1) CN103534574A (en)
BR (1) BR112013015691A2 (en)
CA (1) CA2822438A1 (en)
MX (1) MX2013007137A (en)
WO (1) WO2012088335A2 (en)

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
EP3032245B1 (en) * 2013-08-07 2020-10-07 Mitsubishi Electric Corporation Corrosion-prevention-performance degradation detection sensor, hot water supply and heating system, and facility equipment
JP2015066000A (en) * 2013-09-26 2015-04-13 ソニー株式会社 Measurement device, measurement method, and electronic device
CN105301294B (en) * 2015-09-24 2019-02-22 苏州铂瑞电极工业有限公司 A kind of Ni―Ti anode life test fixture
EP3660488B1 (en) * 2017-08-04 2023-03-15 Mazda Motor Corporation Corrosion resistance test method and corrosion resistance test apparatus for coated metal material
CN109580722B (en) * 2018-12-25 2021-07-06 国网陕西省电力公司电力科学研究院 Grounding grid corrosion monitoring method and device based on alternating current admittance method
JP6835280B1 (en) * 2020-06-22 2021-02-24 マツダ株式会社 Scratch treatment method and treatment equipment, and corrosion resistance test method and corrosion resistance test equipment for coated metal materials
JP6835281B1 (en) * 2020-06-22 2021-02-24 マツダ株式会社 Measuring method and measuring device, and corrosion resistance test method and corrosion resistance test device for coated metal material
JP6801805B1 (en) * 2020-06-22 2020-12-16 マツダ株式会社 Measuring method and measuring device, and corrosion resistance test method and corrosion resistance test device for coated metal material
CN114486714B (en) * 2022-01-19 2023-11-10 杭州新坐标科技股份有限公司 Trapezoidal potential acceleration test method for fuel cell metal bipolar plate

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JPS60200153A (en) * 1984-03-23 1985-10-09 Toshiba Corp Metal corrosion measuring apparatus
JP2519786B2 (en) * 1988-11-01 1996-07-31 志郎 春山 Method for detecting the degree of coating film deterioration of painted metal parts
JPH1044636A (en) * 1996-08-05 1998-02-17 Fuji Photo Film Co Ltd Surface roughening method for lithographic printing block aluminum substrate
JP2001038288A (en) * 1999-08-02 2001-02-13 Nisshin Steel Co Ltd Coated stainless steel panel excellent in non-self- adhesiveness and coating film adhesion
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WO2002039102A1 (en) * 2000-11-09 2002-05-16 British Nuclear Fuels Plc Monitoring of corrosion induced loss of material by means of a plurality of electrical resistance measurements (field signature method, electrical resistance tomography)
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US8888976B2 (en) * 2009-01-02 2014-11-18 Axalta Coating Systems Ip Co., Llc Corrosion resistance evaluator
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Also Published As

Publication number Publication date
CN103534574A (en) 2014-01-22
WO2012088335A3 (en) 2012-08-16
EP2656046A4 (en) 2015-07-01
CA2822438A1 (en) 2012-06-28
WO2012088335A2 (en) 2012-06-28
JP2014505242A (en) 2014-02-27
EP2656046A2 (en) 2013-10-30
MX2013007137A (en) 2013-08-01

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]