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1. WO2012137677 - COMPOSITION FOR CHEMICAL TREATMENT AND PROCESS FOR PRODUCING MEMBER WITH CHEMICAL CONVERSION COATING FILM FORMED FROM SAID COMPOSITION

Publication Number WO/2012/137677
Publication Date 11.10.2012
International Application No. PCT/JP2012/058532
International Filing Date 30.03.2012
IPC
C23C 22/48 2006.01
CCHEMISTRY; METALLURGY
23COATING 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
CCOATING 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
22Chemical 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
05using aqueous solutions
06using aqueous acidic solutions with pH < 6
48not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
CPC
C23C 22/53
CCHEMISTRY; METALLURGY
23COATING 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
CCOATING 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
22Chemical 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
05using aqueous solutions
06using aqueous acidic solutions with pH less than 6
48not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
53Treatment of zinc or alloys based thereon
C23C 2222/10
CCHEMISTRY; METALLURGY
23COATING 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
CCOATING 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
2222Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
10Use of solutions containing trivalent chromium but free of hexavalent chromium
Applicants
  • ユケン工業株式会社 YUKEN INDUSTRY CO., LTD. [JP]/[JP] (AllExceptUS)
  • 平松 良規 HIRAMATSU Yoshiki [JP]/[JP] (UsOnly)
  • 浅野 真理 ASANO Mari [JP]/[JP] (UsOnly)
Inventors
  • 平松 良規 HIRAMATSU Yoshiki
  • 浅野 真理 ASANO Mari
Agents
  • 早川 裕司 HAYAKAWA, Yuzi
Priority Data
2011-08171601.04.2011JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) COMPOSITION FOR CHEMICAL TREATMENT AND PROCESS FOR PRODUCING MEMBER WITH CHEMICAL CONVERSION COATING FILM FORMED FROM SAID COMPOSITION
(FR) COMPOSITION POUR UN TRAITEMENT CHIMIQUE ET PROCÉDÉ DE FABRICATION D'UN ÉLÉMENT AYANT UN FILM DE REVÊTEMENT DE CONVERSION CHIMIQUE FORMÉ À PARTIR DE LADITE COMPOSITION
(JA) 化成処理のための組成物およびその組成物により形成された化成皮膜を備える部材の製造方法
Abstract
(EN)
Provided is a liquid for chemical treatment capable of forming a chemical conversion coating film which is excellent in terms of corrosion resistance and appearance and which is inhibited from releasing hexavalent chromium. This liquid for chemical treatment is a water-based acidic composition which contains a water-soluble trivalent-chromium-containing substance, the amount of the substance being 0.05 mol/L or more in terms of chromium amount with respect to the whole composition, and one or more water-soluble hydroxycarboxylic acid substances selected from the group consisting of hydroxycarboxylic acids and ions, salts, and coordination compounds thereof, wherein the ratio of the molar concentration of the water-soluble hydroxycarboxylic acid substances in terms of the concentration of the hydroxycarboxylic acid(s) to the molar concentration of the water-soluble trivalent-chromium-containing substance in terms of chromium concentration is 0.4 or higher but less than 2.5.
(FR)
L'invention concerne un liquide pour un traitement chimique apte à former un film de revêtement de conversion chimique qui est excellent en termes de résistance à la corrosion et d'aspect et qui est empêché de libérer du chrome hexavalent. Ce liquide pour un traitement chimique est une composition acide à base aqueuse qui contient une substance contenant du chrome trivalent soluble dans l'eau, la quantité de la substance étant de 0,05 mol/L ou plus en termes de quantité de chrome par rapport à la composition totale, et une ou plusieurs substances acides hydrocarboxyliques solubles dans l'eau, choisies dans le groupe consistant en les acides hydroxycarboxyliques et les ions, sels et composés de coordination de ceux-ci, le rapport de la concentration molaire des substances acides hydroxycarboxyliques solubles dans l'eau en termes de la concentration du ou des acides hydroxycarboxyliques à la concentration molaire de la substance contenant du chrome trivalent, soluble dans l'eau, en termes de concentration de chrome étant de 0,4 ou plus mais inférieure à 2,5.
(JA)
 耐食性および外観に優れるとともに6価クロム溶出量が抑制された化成皮膜を形成可能な化成処理液として、全組成物に対してクロム換算で0.05mol/L以上の水可溶性3価クロム含有物質と、ヒドロキシカルボン酸、ならびにそのイオン、塩および配位化合物からなる群から選ばれる1種または2種以上からなる水可溶性ヒドロキシカルボン酸系物質とを備える水系酸性組成物であって、前記水可溶性ヒドロキシカルボン酸系物質のヒドロキシカルボン酸換算モル濃度の前記水可溶性3価クロム含有物質のクロム換算モル濃度に対する比が0.4以上2.5未満である化成処理液が提供される。
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