JPS57113358A - Inspecting method of chemically formed coating - Google Patents

Inspecting method of chemically formed coating

Info

Publication number
JPS57113358A
JPS57113358A JP18835180A JP18835180A JPS57113358A JP S57113358 A JPS57113358 A JP S57113358A JP 18835180 A JP18835180 A JP 18835180A JP 18835180 A JP18835180 A JP 18835180A JP S57113358 A JPS57113358 A JP S57113358A
Authority
JP
Japan
Prior art keywords
coating
chromium
alodine
measured
ray
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP18835180A
Other languages
Japanese (ja)
Inventor
Junzo Nagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Sumitomo Light Metal Industries Ltd
Original Assignee
Sumitomo Light Metal Industries Ltd
Sumitomo Metal Industries 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 Sumitomo Light Metal Industries Ltd, Sumitomo Metal Industries Ltd filed Critical Sumitomo Light Metal Industries Ltd
Priority to JP18835180A priority Critical patent/JPS57113358A/en
Publication of JPS57113358A publication Critical patent/JPS57113358A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/07—Investigating materials by wave or particle radiation secondary emission
    • G01N2223/076—X-ray fluorescence

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

PURPOSE:To make it possible to measure chromium content in an alodine coating with simplicity even in the case of using a chromium-containing alloy as a metallic matrix, by measuring phosphorus content in a chemically formed coating by fluorescent X-ray. CONSTITUTION:A test piece is to be prepared by using iron or aluminum or their alloys containing chromium and other alloying components, as a matrix, and providing the surface with an alodine coating in order to improve the corrosion resistance and the adhesiveness to paint. For the chemical formation of the alodine coating, an aqueous solution containing an auxiliary agent such as chromic acid, phosphoric acid and hydrogen fluoride, etc. is sprayed on the metallic matrix to provide the surface with a non-metallic coating. By applying radiation of X-ray onto thus prepared test piece, intensity of fluorescent X-ray emitting from phosphorus contained in the alodine coating is measured, and chromium content is measured on the basis of the measured intensity. It is possible, by doing so, to execute a measurement with simplicity and rapidity without necessity of making correction for the chromium content.
JP18835180A 1980-12-29 1980-12-29 Inspecting method of chemically formed coating Pending JPS57113358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18835180A JPS57113358A (en) 1980-12-29 1980-12-29 Inspecting method of chemically formed coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18835180A JPS57113358A (en) 1980-12-29 1980-12-29 Inspecting method of chemically formed coating

Publications (1)

Publication Number Publication Date
JPS57113358A true JPS57113358A (en) 1982-07-14

Family

ID=16222098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18835180A Pending JPS57113358A (en) 1980-12-29 1980-12-29 Inspecting method of chemically formed coating

Country Status (1)

Country Link
JP (1) JPS57113358A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102411011A (en) * 2010-09-21 2012-04-11 上海宝钢工业检测公司 Rapid determining method of chromium content of tinned plate surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102411011A (en) * 2010-09-21 2012-04-11 上海宝钢工业检测公司 Rapid determining method of chromium content of tinned plate surface

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