MX2013007133A - Proceso para evaluar resistencia a la corrosion de revestimiento. - Google Patents

Proceso para evaluar resistencia a la corrosion de revestimiento.

Info

Publication number
MX2013007133A
MX2013007133A MX2013007133A MX2013007133A MX2013007133A MX 2013007133 A MX2013007133 A MX 2013007133A MX 2013007133 A MX2013007133 A MX 2013007133A MX 2013007133 A MX2013007133 A MX 2013007133A MX 2013007133 A MX2013007133 A MX 2013007133A
Authority
MX
Mexico
Prior art keywords
corrosion
days
cathode
coated
corrosion resistance
Prior art date
Application number
MX2013007133A
Other languages
English (en)
Inventor
Lorenzo Fred Pelosi
Shi Hua Zhang
Robert C Nahas
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 MX2013007133A publication Critical patent/MX2013007133A/es

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • 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)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

La presente invención está dirigida a un proceso para evaluar la resistencia a la corrosión de sustratos metálicos revestidos, tales como carrocerías de automóviles, a un índice acelerado. Un ánodo y un cátodo revestidos con un revestimiento protector que se someten a prueba se exponen a un electrolito en una cámara de un aparato analizador de resistencia a la corrosión. Estos revestimientos están provistos de defectos predeterminados y estandarizados, tales como microorificios, para acelerar la corrosión del sustrato metálico subyacente de una manera predecible y repetible. El par cátodo/ánodo revestido se somete a un período de inicio seguido de una serie de voltajes de DC predeterminados modulados de manera gradual por tiempos de duración predeterminados intercalados con períodos de recuperación. Después, los datos de impedancia recolectados se usan para llegar a la resistencia de rendimiento de corrosión del revestimiento aplicado sobre el par cátodo/ánodo. El aparato analizador descrito anteriormente reduce sustancialmente el tiempo requerido para pruebas de corrosión desde varios días (40 días o más) a pocos días (aproximadamente, dos días).
MX2013007133A 2010-12-21 2011-12-21 Proceso para evaluar resistencia a la corrosion de revestimiento. MX2013007133A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201061425458P 2010-12-21 2010-12-21
PCT/US2011/066453 WO2012088256A2 (en) 2010-12-21 2011-12-21 Process for evaluating corrosion resistance of coating

Publications (1)

Publication Number Publication Date
MX2013007133A true MX2013007133A (es) 2013-08-01

Family

ID=46314883

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2013007133A MX2013007133A (es) 2010-12-21 2011-12-21 Proceso para evaluar resistencia a la corrosion de revestimiento.

Country Status (6)

Country Link
US (1) US9606076B2 (es)
EP (1) EP2656045A4 (es)
CN (1) CN103502794A (es)
BR (1) BR112013015686A2 (es)
MX (1) MX2013007133A (es)
WO (1) WO2012088256A2 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2013007138A (es) 2010-12-21 2013-08-01 Coatings Foreign Ip Co Llc Proceso para evaluar la resistencia a la corrosion de un revestimiento.
CN106323861B (zh) * 2015-06-16 2019-04-26 鞍钢股份有限公司 一种彩涂板有机涂层聚合性能的评价方法
CN108007973A (zh) * 2016-10-31 2018-05-08 中国石油化工股份有限公司 球囊密封器及使用该球囊密封器的垢层保护性评价装置
CN108007974A (zh) * 2016-10-31 2018-05-08 中国石油化工股份有限公司 一种评价垢层保护性的方法
CN108344681A (zh) * 2018-01-31 2018-07-31 中国船舶重工集团公司第七二五研究所 电解压载水环境下压载舱及其管系涂层性能的测试方法
JP6747495B2 (ja) * 2018-12-11 2020-08-26 マツダ株式会社 被覆金属材の耐食性試験方法
TWI769559B (zh) * 2020-10-16 2022-07-01 遠東科技大學 評估鍍膜層耐蝕性方法
CN112763406A (zh) * 2020-12-16 2021-05-07 广州汽车集团股份有限公司 腐蚀数据分析方法、介质、评估方法及汽车

Family Cites Families (8)

* 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
EP1337841A1 (en) * 2000-11-09 2003-08-27 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 (zh) * 2004-05-09 2005-01-26 湖南大学 一种有机涂层防护性能测试加速方法
US20100155262A1 (en) * 2008-12-18 2010-06-24 Yepez Omar J Apparatus and method to measure electrochemical impedance
EP2373976A1 (en) * 2009-01-02 2011-10-12 E. I. du Pont de Nemours and Company Corrosion resistance evaluator
US8723535B2 (en) * 2009-01-02 2014-05-13 Axalta Coating Systems Ip Co., Llc Process for evaluating corrosion resistance of coating
CN101634623B (zh) * 2009-07-29 2012-04-18 北京化工大学 一种在役涂层耐蚀性能快速评价的方法及系统

Also Published As

Publication number Publication date
BR112013015686A2 (pt) 2016-10-11
US20130325364A1 (en) 2013-12-05
EP2656045A4 (en) 2015-07-01
CN103502794A (zh) 2014-01-08
WO2012088256A2 (en) 2012-06-28
US9606076B2 (en) 2017-03-28
EP2656045A2 (en) 2013-10-30
WO2012088256A3 (en) 2012-08-16

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