BR112013015685A2 - corrosion resistance tester - Google Patents

corrosion resistance tester

Info

Publication number
BR112013015685A2
BR112013015685A2 BR112013015685A BR112013015685A BR112013015685A2 BR 112013015685 A2 BR112013015685 A2 BR 112013015685A2 BR 112013015685 A BR112013015685 A BR 112013015685A BR 112013015685 A BR112013015685 A BR 112013015685A BR 112013015685 A2 BR112013015685 A2 BR 112013015685A2
Authority
BR
Brazil
Prior art keywords
corrosion
days
corrosion resistance
cathode
evaluator
Prior art date
Application number
BR112013015685A
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 BR112013015685A2 publication Critical patent/BR112013015685A2/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)
  • 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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (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 previsível 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 gradual 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 de 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 gradually modulated pre-set voltages to pre-set 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).

BR112013015685A 2010-12-21 2011-12-21 corrosion resistance tester BR112013015685A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201061425462P 2010-12-21 2010-12-21
PCT/US2011/066419 WO2012088236A2 (en) 2010-12-21 2011-12-21 Corrosion resistance evaluator

Publications (1)

Publication Number Publication Date
BR112013015685A2 true BR112013015685A2 (en) 2016-09-20

Family

ID=46314878

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013015685A BR112013015685A2 (en) 2010-12-21 2011-12-21 corrosion resistance tester

Country Status (7)

Country Link
EP (1) EP2656047A4 (en)
JP (1) JP2014500516A (en)
CN (1) CN103518128A (en)
BR (1) BR112013015685A2 (en)
CA (1) CA2822607A1 (en)
MX (1) MX2013007139A (en)
WO (1) WO2012088236A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3329595T3 (en) * 2015-07-29 2020-11-23 Semb Eco R&D Pte Ltd Method and system for applying superimposed electromagnetic wave with time-varying frequency to a target object or region
CN105203604B (en) * 2015-10-15 2018-10-02 苏州铂瑞电极工业有限公司 A kind of analysis chlorine Ni―Ti anode simulating test device
JP2020118468A (en) * 2019-01-18 2020-08-06 マツダ株式会社 Corrosion resistance test device of coated metal material
CN112763406B (en) * 2020-12-16 2024-07-05 广州汽车集团股份有限公司 Corrosion data analysis method, medium, evaluation method and automobile
CN113218855B (en) * 2021-03-24 2022-05-17 厦门大学 Method for accelerating failure and corrosion of organic coating/metal system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6383451B1 (en) * 1999-09-09 2002-05-07 Korea Gas Corporation Electric resistance sensor for measuring corrosion rate
AU2002212492A1 (en) * 2000-11-09 2002-05-21 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)
GB0222656D0 (en) * 2002-10-01 2002-11-06 Bae Systems Plc Corrosion sensing microsensors
CN1570591A (en) * 2004-05-09 2005-01-26 湖南大学 Acceleration method for barrel properties test of organic coating
US20100155262A1 (en) * 2008-12-18 2010-06-24 Yepez Omar J Apparatus and method to measure electrochemical impedance
EP2384430A4 (en) * 2009-01-02 2014-09-17 Coatings Foreign Ip Co Llc Process for evaluating corrosion resistance of coating
JP5238083B2 (en) * 2009-01-02 2013-07-17 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Corrosion resistance evaluation device
CN101634623B (en) * 2009-07-29 2012-04-18 北京化工大学 Method and system for rapidly evaluating corrosion resistance of in-service coating
CN101792922B (en) * 2010-04-12 2011-12-21 北京航空航天大学 Anticorrosive sealing liquid and method for sealing anodic oxide film containing copper-aluminium alloy by utilizing same

Also Published As

Publication number Publication date
EP2656047A4 (en) 2015-07-01
EP2656047A2 (en) 2013-10-30
WO2012088236A3 (en) 2012-08-09
MX2013007139A (en) 2013-08-01
WO2012088236A2 (en) 2012-06-28
JP2014500516A (en) 2014-01-09
CN103518128A (en) 2014-01-15
CA2822607A1 (en) 2012-06-28

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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]