JPS5573878A - Surface-treating method for aluminum alloy casting - Google Patents

Surface-treating method for aluminum alloy casting

Info

Publication number
JPS5573878A
JPS5573878A JP14546078A JP14546078A JPS5573878A JP S5573878 A JPS5573878 A JP S5573878A JP 14546078 A JP14546078 A JP 14546078A JP 14546078 A JP14546078 A JP 14546078A JP S5573878 A JPS5573878 A JP S5573878A
Authority
JP
Japan
Prior art keywords
alloy casting
water
triethanolamine
aminoacid
casting
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.)
Granted
Application number
JP14546078A
Other languages
Japanese (ja)
Other versions
JPS6158554B2 (en
Inventor
Hiroyuki Tokumasu
Hiroshi Oguro
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14546078A priority Critical patent/JPS5573878A/en
Publication of JPS5573878A publication Critical patent/JPS5573878A/en
Publication of JPS6158554B2 publication Critical patent/JPS6158554B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/66—Treatment of aluminium or alloys based thereon

Abstract

PURPOSE:To give white color tone to an Al alloy casting, the operation which has been formerly difficult to perform, and to give corrosion resistance to the alloy casting, by treating the casting in water which contains a chelating agent or a water- soluble aminoacid in addn. to a boehmite coating-forming agent. CONSTITUTION:To an aq. soln. contg. 0.05-1.0g triethanolamine, i.e., a boehmite-forming agent, per 100cc water is added EDTA as a chelating agent or a water-soluble aminoacid (e.g., glycine) to form a surface treatment fluid. The concn. of the EDTA is set not less than 2 times that of triethanolamine, and the concn. of the aminoacid not less than 5 times that of the triethanolamine. Treatment of Al alloy casting in the surface treatment fluid results in the improvement in the color tone and corrosion resistance of the Al alloy casting which is used especially for manufacturing kitchen utensils.
JP14546078A 1978-11-25 1978-11-25 Surface-treating method for aluminum alloy casting Granted JPS5573878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14546078A JPS5573878A (en) 1978-11-25 1978-11-25 Surface-treating method for aluminum alloy casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14546078A JPS5573878A (en) 1978-11-25 1978-11-25 Surface-treating method for aluminum alloy casting

Publications (2)

Publication Number Publication Date
JPS5573878A true JPS5573878A (en) 1980-06-03
JPS6158554B2 JPS6158554B2 (en) 1986-12-12

Family

ID=15385736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14546078A Granted JPS5573878A (en) 1978-11-25 1978-11-25 Surface-treating method for aluminum alloy casting

Country Status (1)

Country Link
JP (1) JPS5573878A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5785979A (en) * 1980-09-18 1982-05-28 Biren Chem Saabisesu Ltd Surface treating method and solution of aluminum
JPS58123881A (en) * 1982-01-18 1983-07-23 フツカ−・ケミカルズ・アンド・プラスチツクス・コ−ポレ−シヨン Treatment of aluminum surface and composition
FR2930023A1 (en) * 2008-04-09 2009-10-16 Valeo Systemes Thermiques Surface treatment method for motor vehicle's charge air cooler, involves carrying out hydrothermal treatment on components and brazing points to cover components and points with boehmite film and protect components and points from corrosion

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114530A (en) * 1973-03-06 1974-11-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114530A (en) * 1973-03-06 1974-11-01

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5785979A (en) * 1980-09-18 1982-05-28 Biren Chem Saabisesu Ltd Surface treating method and solution of aluminum
JPH0319303B2 (en) * 1980-09-18 1991-03-14 Piren Chem Saabisesu Ltd
JPS58123881A (en) * 1982-01-18 1983-07-23 フツカ−・ケミカルズ・アンド・プラスチツクス・コ−ポレ−シヨン Treatment of aluminum surface and composition
FR2930023A1 (en) * 2008-04-09 2009-10-16 Valeo Systemes Thermiques Surface treatment method for motor vehicle's charge air cooler, involves carrying out hydrothermal treatment on components and brazing points to cover components and points with boehmite film and protect components and points from corrosion

Also Published As

Publication number Publication date
JPS6158554B2 (en) 1986-12-12

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