Metal treatment – Process of modifying or maintaining internal physical... – Processes of coating utilizing a reactive composition which...
Reexamination Certificate
2005-02-01
2005-02-01
King, Roy (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
Processes of coating utilizing a reactive composition which...
C148S264000, C148S285000, C205S213000
Reexamination Certificate
active
06849138
ABSTRACT:
The surface of an aluminum alloy high-temperature processed article containing Mg is heated at a high temperature of 200° C. or above, thereafter the surface is etched with an aqueous solution containing a chelating agent, and then at least one surface treatment selected from hydration oxidation treatment, coating type chromating, coating, anodizing, and alternating current electrolysis in an aqueous alkali solution is further carried out.This method can provide a surface-treated aluminum alloy high-temperature processed article having superior anticorrosion and adhesion of coatings and a good surface appearance, and is effective as a pretreatment for further surface treatment.
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Kamiyama Shiro
Kobayashi Michio
Kosugi Masanori
Kurata Masahiro
Shiraishi Sadao
Honda Giken Kogyo Kabushiki Kaisha
King Roy
Leader William T.
Sky Aluminium Co., Ltd.
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