CN102268667A - 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 - Google Patents
3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 Download PDFInfo
- Publication number
- CN102268667A CN102268667A CN2011102362681A CN201110236268A CN102268667A CN 102268667 A CN102268667 A CN 102268667A CN 2011102362681 A CN2011102362681 A CN 2011102362681A CN 201110236268 A CN201110236268 A CN 201110236268A CN 102268667 A CN102268667 A CN 102268667A
- Authority
- CN
- China
- Prior art keywords
- valency
- chemical conversion
- treatment solution
- chromium
- acid
- 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
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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/46—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 acidic solutions with pH less than 6 containing oxalates
-
- 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
- C23C22/73—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 characterised by the process
- C23C22/77—Controlling or regulating of the coating process
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/24—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/26—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
- C23C22/27—Acids
-
- 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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/24—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/30—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also trivalent chromium
-
- 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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/24—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/33—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates
-
- 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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/40—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 acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
-
- 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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/46—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 acidic solutions with pH less than 6 containing oxalates
- C23C22/47—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 acidic solutions with pH less than 6 containing oxalates containing also phosphates
-
- 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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/48—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 acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/53—Treatment of zinc or alloys based thereon
-
- 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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
- C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
本发明的目的在于提供一种基本上从膜中不溶出6价铬的3价铬化学转化膜。根据本发明提供的3价铬化学转化膜,其为在镀锌或镀锌合金的表面上形成的3价铬化学转化膜,该3价铬化学转化膜在盐水喷雾试验中的耐腐蚀性(白锈发生时间)为96小时以上,在化学转化膜中的以金属原子换算的6价铬浓度不足0.01μg/cm2,在恒温恒湿槽中温度80℃湿度95%下放置30天后的6价铬的溶出量(将膜在温度100℃的热水中浸渍10分钟时的溶出量)不足0.05μg/cm2。
Description
本申请是申请日为2008年08月04日、申请号为200880110181.6、发明名称为“3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液”的申请的分案申请。
技术领域
本发明涉及在镀锌或镀锌合金上形成的实际上不溶出6价铬的3价铬耐腐蚀性化学转化处理膜,以及涉及用于形成此类化学转化处理膜的3价铬化学转化处理溶液或化学转化处理的后处理溶液。
背景技术
作为金属表面的防腐蚀方法较多地使用进行镀锌的方法,但是单独镀敷的话耐腐蚀性不充分,产业界广泛采用在电镀后使用6价铬的铬酸盐处理。但是,近年来6价铬被指出对人体、环境有恶劣影响,从而6价铬的使用受到了限制。
因此,作为它的代替技术之一开发并开始应用使用3价铬的3价铬化学转化膜。例如,日本特开2000-509434号公报公开了一种使用5~100g/L 3价铬与硝酸根、有机酸、钴等的金属盐进行处理的方法。该方法通过以高铬浓度进行高温处理形成较厚的3价铬化学转化膜,从而可获得良好的耐腐蚀性,但处理浴中的铬浓度和有机酸浓度高,废水处理性差。
专利文献1:日本特开2000-509434号公报
发明内容
此外,还发现发生如下问题:这种现有的无6价铬的3价铬化学转化处理膜,长时间放置在自然环境中时,膜中的3价铬被氧化,在膜中检测出有害的6价铬。
本发明的目的在于提供一种3价铬化学转化处理膜,其为在镀锌和镀锌系合金上形成的3价铬耐腐蚀性化学转化处理膜,该化学转化处理膜以低的铬浓度,具有与现有技术同等或其以上的耐腐蚀性,且考虑到了对人体或环境的影响,即使经放置基本上也不会在膜中检测出6价铬。此外,本发明的目的还在于提供能够用于形成此类化学转化处理膜的3价铬化学转化处理溶液或化学转化处理的后处理溶液。
本发明人等进行深入研究的结果发现,在低的3价铬浓度的3价铬化学转化膜中,通过使膜自身具有抑制膜中的3价铬氧化成6价铬的功能,可以得到具有高的耐腐蚀性、并且即使经放置基本上也不会溶出6价铬的化学转化膜。此外,还发现:此类化学转化膜通过使用特定组成的化学转化处理液而得以实现。
因此,本发明的3价铬化学转化膜,其特征在于,其为在镀锌或镀锌合金的表面上形成的3价铬化学转化膜,该3价化学转化膜在盐水喷雾试验中的耐腐蚀性(白锈发生时间)为96小时以上,化学转化膜中的以金属原子换算的6价铬浓度不足0.01μg/cm2,在恒温恒湿槽中温度80℃湿度95%下放置30天后的6价铬的溶出量(将膜浸渍在温度100℃的热水中10分钟时的溶出量)不足0.05μg/cm2。
此外,本发明的优选的方式为前述3价铬化学转化膜的化学转化膜中的以金属原子换算的3价铬浓度为2~20μg/cm2。
此外,本发明的一个方式为前述3价铬化学转化膜的化学转化膜中的钴浓度为3.5~0.2μg/cm2。在该方式中,优选的钴浓度为3~0.3μg/cm2。
进而,本发明的一个方式为前述3价铬化学转化膜的化学转化膜中的钴浓度不足0.2μg/cm2。在该方式中,优选的钴浓度为0~0.17μg/cm2。
关于通过使膜自身具有抑制膜中的3价铬氧化成6价铬的功能,可以获得具有高耐腐蚀性并且即使经放置基本上也不会溶出6价铬的化学转化膜的理由,还尚未明确,但本发明人等通过在本发明中的研究,推断其可能是由于以下所述的理由。即,可以推定为在放置中从通常使用的3价铬化学转化膜中检测出6价铬,是由于化学转化膜中的Co3+作为氧化剂而发挥作用,氧化3价铬而引起的。
3价铬化学转化膜的形成机理和推测的由Co3+导致的Cr6+的生成机理如下所示。
(i)锌溶解在酸性处理液中,放出电子。
Zn→Zn2++2e-
(ii)在锌和处理液界面的氢离子被消耗,处理液的pH值上升。
2H++2e-→H2↑
(iii)随着处理液的pH值的上升,生成氢氧化铬。
2Cr3++6(OH-)→2Cr(OH)3↓
(iv)为了增强耐腐蚀性而使用的处理液中的Co2+,也随着pH值的上升,在锌界面附近生成氢氧化亚钴。但是,由于Co2+在碱性侧不稳定,因此随着时间的推移变成稳定的Co3+。
Co(OH)2→Co(OH)3
(v)随着氢氧化铬、氢氧化钴(Co2+、Co3+)的凝胶化和沉积,其他的不溶性物质(SiO2)或少量的处理液也被吸附浸渍而引入到膜中。
(vi)通过干燥工序,经沉积、吸附物的脱水、固化,从而进行膜固化,在干燥不充分的情况下可以预测为不发生膜固化而在膜中进行化学反应。
(vii)由于包含了处理液的化学转化膜为弱酸性氛围,因此膜中的氢氧化钴一点点地游离溶解,Co3+在酸性下变成稳定的Co2+。此外,认为氢氧化铬也游离溶解并发生以下的反应。
3Co3++3e-→3Co2+
Cr3+→Cr6++3e-
将上述两式合并则成为如下的式子。
Cr3++3Co3+→Cr6++3Co2+
即可见膜中的3价钴氧化3价铬,生成6价铬。
另外,考虑到即使在不含有Co3+的情况下,在由通过氯酸-硝酸等的组合而具有强氧化作用的化学转化处理液来生成的膜中,也生成6价铬,由此可以推测减少处理液中的硝酸离子浓度也有助于抑制6价铬生成。含有二氧化锰等锰氧化物的化学转化膜,在膜中除了Co以外还含有大量价数变化的元素离子的化学转化膜的情况下,同样地,也可以认为3价铬被氧化生成6价铬。
此外,本发明是基于以下的见解而作出的,即通过在3价铬化学转化处理液、3价铬化学转化膜的水洗水或后处理液中均添加具有抑制生成6价铬的效果的6价铬生成抑制剂,可以抑制在3价铬化学转化膜中产生的6价铬,即使经放置,从3价铬化学转化膜中6价铬的溶出量(将膜浸渍在温度100℃的热水中10分钟时的溶出量)也不足0.05μg/cm2。
因此,本发明提供一种用于在镀锌或镀锌合金上形成即使经放置基本上也不溶出6价铬的3价铬化学转化膜的化学转化处理液,其特征在于,前述化学转化处理液为处理液中的3价铬离子含量为0.002~0.5mol/l,6价铬离子浓度为1ppm以下,钴离子含量为0.1mol/l以下,该处理液含有可以抑制3价铬化学转化膜中产生的6价铬的生成的6价铬生成抑制剂,pH值为0.5~5。
此外,本发明提供用于抑制3价铬化学转化膜中产生的6价铬的、在镀锌或镀锌合金上形成的3价铬化学转化膜的水洗水或后处理液,其特征在于,前述水洗水或后处理液含有0.1~10g/l能够抑制在3价铬化学转化膜中产生的6价铬的生成的6价铬生成抑制剂,pH值为2~10。
此外,本发明是基于以下的见解而作出的,即通过将3价铬化学转化处理液中的钴离子含量控制在250ppm以下、并使用以硫原子换算的硫化合物的含量为100~1000ppm的范围的3价铬化学转化处理液使其形成3价铬酸盐膜,可以抑制在3价铬化学转化膜中生成6价铬,即使经放置,从3价铬化学转化膜中的6价铬的溶出量(将膜浸渍在温度100℃的热水中10分钟时的溶出量)也不足0.05μg/cm2。
因此,本发明提供用于在镀锌或镀锌合金上形成即使经放置基本上也不会溶出6价铬的3价铬酸盐膜的化学转化处理液,其特征在于,前述化学转化处理液为处理液中的3价铬离子含量为0.002~0.5mol/l,6价铬离子浓度为1ppm以下,钴离子含量为250ppm以下,以硫原子换算含有100~1500ppm的范围的硫化合物。
本发明的3价铬化学转化膜,除了镀锌自身的耐腐蚀性以外,还组合持有3价铬化学转化膜自身所具有的优异的耐腐蚀性。进而,通过在镀锌上直接生成3价铬化学转化膜而得到的膜,基本上也不会出现因放置而导致的6价铬的溶出,具有与现有的6价铬酸盐同等或其以上的耐腐蚀性和耐盐水性,并且可以应用在多彩的色调中。此外,能够形成此类化学转化膜的本发明的化学转化处理液,由于处理液中的3价铬浓度低,进而有机酸浓度或氮浓度也降低,因此对废水处理有利,在经济上也具有优越性。
具体实施方式
作为本发明中使用的基体,可以列举铁、镍、铜等各种金属、以及它们的合金、或实施了锌置换处理的铝等金属或合金的板状物、长方体、圆柱、圆筒、球状物等各种形状的基体。
上述基体可以按照常规方法实施镀锌和镀锌合金。作为使镀锌析出于基体上的方法,可以采用硫酸浴、氟硼酸盐浴、氯化钾浴、氯化钠浴、氯化铵-氯化钾浴等酸性/中性浴、氰化物浴、锌酸盐浴、焦磷酸浴等碱性浴的任一种,若要列举的话,特别优选氰化物浴。此外,镀锌合金可以采用氯化铵浴、有机螯合物浴等碱性浴的任一种。
此外,作为镀锌合金,可以列举镀锌-铁合金、镀锌-镍合金、镀锌-钴合金、镀锡-锌合金等。优选为镀锌-铁合金。基体上析出的镀锌或镀锌合金的厚度可以是任意的,可以为1μm以上,优选为5~25μm厚度。
本发明中,这样在基体上析出镀锌或镀锌合金后,根据需要可以进行适当的前处理,例如水洗、或水洗后用硝酸活性处理,然后,使用用于形成本发明的3价铬化学转化膜的化学转化处理液,例如采用浸渍处理等方法进行化学转化处理。
本发明的第1方式的化学转化处理液含有3价铬离子、钴离子和能够抑制3价铬化学转化膜中产生的6价铬的生成的6价铬生成抑制剂。
前述化学转化处理液中,作为3价铬离子的供给源,也可以使用包含3价铬离子的任何一种铬化合物。例如使用氯化铬、硫酸铬、硝酸铬、磷酸铬、醋酸铬等3价铬盐,或者也可以用还原剂将铬酸、重铬酸盐等6价铬离子还原成3价铬离子来使用,但并不限于此。上述3价铬的供给源可以使用1种或2种以上。化学转化处理液中的3价铬离子的含量,优选为0.002~0.5mol/l,更优选为0.02~0.1mol/l。另外,化学转化处理液中的6价铬离子的浓度,优选为1ppm以下,更优选为0.5ppm以下。
前述化学转化处理液中,作为钴离子的供给源,也可以使用包含钴的任意金属化合物。例如可以列举硝酸钴、硫酸钴、氯化钴、碳酸钴、氢氧化钴等,但并不限于此。这些金属化合物可以使用1种或2种以上。化学转化处理液中的钴离子的含量,优选为0.1mol/l以下,更优选为0.001~0.06mol/l,进一步优选为0.005~0.04mol/l。
前述化学转化处理液中,6价铬生成抑制剂,只要是能够抑制3价铬化学转化膜中产生的6价铬的生成的添加剂,则可以使用任意的添加剂。为了研究能够抑制6价铬的生成的添加剂,在用于形成3价铬酸盐膜的化学转化处理液中添加了各种添加剂,并对它们的效果进行了实验,结果在例如抗坏血酸离子、柠檬酸离子、丹宁酸离子、没食子酸离子、酒石酸离子、羟基(异)喹啉类、酚类、硫脲等有机还原性化合物或磷酸离子、磷酸铬离子、钒离子、钛离子等无机或金属还原性化合物中确认出其效果。因此,作为6价铬生成抑制剂,优选地可以列举抗坏血酸及其盐、柠檬酸及其盐、丹宁酸及其盐、没食子酸及其盐、酒石酸及其盐、硫脲、磷酸及其盐、钒化合物、钛化合物等。化学转化处理液中的6价铬生成抑制剂的含量,优选为0.1~5g/l,更优选为0.2~3g/l,进一步优选为0.3~2g/l。
前述化学转化处理液的pH值,优选为0.5~5,更优选为2~3。为了将pH值调节为该范围内,可以使用以下记载的无机酸离子,或者也可以使用氢氧化钾、氨水等碱性剂。
前述化学转化处理液中,可以含有选自无机酸及其碱性盐等的1种以上。作为无机酸,可以列举例如硫酸、硝酸、盐酸等,但并不限于此。在含有选自无机酸及其碱性盐等的1种以上的情况下,化学转化处理液中的该无机酸及其碱性盐的浓度,优选为1~50g/L,更优选为4~20g/L。
此外,前述化学转化处理液中,作为3价铬离子的螯合剂,可以含有1种以上羟基羧酸、一元羧酸酸、多元羧酸、氨基羧酸以及它们的碱性盐等。作为羟基羧酸,可以列举苹果酸等,但并不限于此。作为一元羧酸,可以列举甲酸、醋酸等,但并不限于此。作为多元羧酸,可以列举草酸、丙二酸、琥珀酸、己二酸、二甘醇酸等二元羧酸,丙三羧酸等三元羧酸等,但并不限于此。作为氨基羧酸,可以列举甘氨酸、天冬氨酸等,但并不限于此。其中,优选为多元羧酸,更优选为草酸、丙二酸、琥珀酸。含有上述3价铬离子的螯合剂的情况下,相对于1mol的3价铬离子,化学转化处理液中的该螯合剂的浓度优选0.2~2mol的范围,更优选为0.3~2mol的范围,进一步优选为0.5~2mol的范围,再进一步优选为0.7~1.8mol的范围。
此外,前述化学转化处理液中,可以含有1种以上硅化合物。作为硅化合物,可以列举胶体二氧化硅、硅酸钠、硅酸钾、硅酸锂等,但并不限于此。在含有硅化合物的情况下,化学转化处理液中的硅化合物的浓度,以Si计,优选为1~20g/l,更优选为2~10g/l。特别优选的为胶体二氧化硅,其浓度以20%SiO2水溶液计优选为1~100ml/l。通过含有胶体二氧化硅,可以形成Si和O的层与Cr和O的层的2层结构膜,还可以提高耐腐蚀性。
此外,前述化学转化处理液中,可以含有1种以上膜综合摩擦系数降低剂。作为此类膜综合摩擦系数降低剂,可以列举例如日本特开2005-248233号公报记载的喹啉磺酸、喹哪啶酸、喹吖酞酮等的喹啉系化合物或其衍生物。在含有膜综合摩擦系数降低剂的情况下,化学转化处理液中的该膜综合摩擦系数降低剂的浓度,优选为0.1~25g/l,更优选为0.2~15g/l。用含有此类膜综合摩擦系数降低剂的前述化学转化处理液处理而形成的本发明的3价铬化学转化膜,成为膜综合摩擦系数降低的膜。
前述化学转化处理液中的上述必要成分的其余部分为水。
通常,3价铬化学转化处理液中,为了提高3价铬化学转化膜的耐腐蚀性而大量使用含氮化合物、主要为硝酸离子。因此处理液中的氮原子浓度高至例如3~9g/l,而具有废水处理方面的问题。本发明的前述化学转化处理液中,可以以与现有技术同样的量使用硝酸离子。但是,即使大幅地减少硝酸离子,主要是将来自硝酸离子的化学转化处理液中的氮原子浓度大幅地降低到500ppm/l以下,通过本发明的前述化学转化处理液,也可以得到耐腐蚀性优异、并且可以抑制因放置引起的6价铬的溶出的3价铬化学转化膜。作为此类前述处理液,具体而言,例如氮原子的含量为500ppm以下,优选为30~400ppm的范围,更优选为50~300ppm的范围。作为6价铬生成抑制剂,优选金属还原性化合物,特别优选钒化合物、钛化合物、镁化合物或它们的并用。
此外,可以含有钴离子,也可以不含有钴离子。但是,在以优选0.001~0.06mol/l的范围,更优选0.005~0.04mol/l的范围含有钴离子时,化学转化膜的加热耐腐蚀性进一步提高,因此是优选的。
作为使用前述化学转化处理液、在镀锌或镀锌合金上形成3价铬化学转化膜的方法,通常为在前述化学转化处理液中浸渍镀锌或镀锌合金的基体的方法。浸渍时的化学转化处理液的温度为例如10~70℃。优选为30~50℃。浸渍时间,优选为5~600秒,更优选为15~120秒。另外,为了使镀锌或镀锌合金表面活化,可以在3价铬化学转化处理前使其浸渍在稀硝酸溶液或稀硫酸溶液、稀盐酸溶液、稀氢氟酸溶液等中。上述以外的条件、处理操作,可以按照现有的6价铬酸盐处理方法来进行。
此外,本发明的第2方式为用于抑制在3价铬化学转化膜中产生的6价铬的在镀锌或镀锌合金上形成了3价铬化学转化膜的水洗水或后处理液,该水洗水或后处理液含有能够抑制在3价铬化学转化膜中产生的6价铬的生成的6价铬生成抑制剂。应用前述水洗水或后处理液的3价铬化学转化膜的形成方法,没有特别的限制,可以使公知的任意方法。前述水洗水或后处理液,在3价铬化学转化膜含有Co2+、Co3+的情况下、在3价铬化学转化膜为采用氯酸-硝酸等的组合而由具备强氧化功能的化学转化处理液形成的膜的情况下、在3价铬化学转化膜含有二氧化锰等锰氧化物的情况下、在3价铬化学转化膜在膜中大量含有Co以外的价数变化的元素离子的情况下,特别有效。另外,关于6价铬生成抑制剂,可以参照上述说明。
前述水洗水或后处理液中的6价铬生成抑制剂的含量,优选为0.1~10g/l,更优选为0.2~5g/l,进一步优选为0.3~3g/l。作为优选的6价铬生成抑制剂,可以列举抗坏血酸及其盐、柠檬酸及其盐、丹宁酸及其盐、没食子酸及其盐、酒石酸及其盐、硫脲、磷酸及其盐等。
前述水洗水或后处理液的pH值,优选为2~10,更优选为3~6。为了将pH值调节为该范围内,可以使用以下记载的无机酸离子,或者也可以使用氢氧化钾、氨水等碱性剂。
作为使用前述水洗水或后处理液处理3价铬化学转化膜的方法,没有特别的限制,可以使用浸渍、涂布、喷雾等现有公知的方法。但是,通常采用将3价铬化学转化膜浸渍在前述水洗水或后处理液的方法。浸渍时的前述水洗水或后处理液的温度为例如10~70℃。优选为20~50℃。浸渍时间,优选为5~120秒,更优选为5~15秒。
此外,本发明的第3方式的化学转化处理液含有3价铬离子、钴离子、硫化合物。
前述化学转化处理液中,作为铬离子的供给源,可以使用含有3价铬离子的任意的铬化合物。对这些3价铬离子的供给源没有限制,例如使用氯化铬、硫酸铬、硝酸铬、磷酸铬、醋酸铬等3价铬盐,或者也可以用还原剂将铬酸、重铬酸盐等6价铬离子还原成3价铬离子来使用。上述3价铬的供给源可以使用1种或2种以上。化学转化处理液中的3价铬离子的含量,优选为0.002~0.5mol/l,更优选为0.02~0.1mol/l。另外,化学转化处理液中的6价铬离子的浓度,优选为1ppm以下,更优选为0.5ppm以下。
前述化学转化处理液中的钴离子的含量为250ppm以下。在前述化学转化处理液的情况下,未必必须含有钴离子。由于使其含有硫化合物,因此即使不含有钴离子,所形成的3价铬化学转化膜也具有充分的耐腐蚀性。在需要更高的耐腐蚀性的情况下,前述化学转化处理液中的钴离子的含量,优选为100~250ppm,更优选为150~200ppm。前述化学转化处理液中,在含有钴离子的情况下,作为钴离子的供给源,也可以使用包含钴的任意金属化合物。对这些钴离子的供给源没有限制,例如可以列举硝酸钴、硫酸钴、氯化钴、碳酸钴、氢氧化钴等。这些金属化合物可以使用1种或2种以上。
前述化学转化处理液中,作为硫化合物,优选有机硫化合物,具体而言,可以列举例如硫脲、硫代甘油、硫代醋酸、硫代醋酸钾、硫代二乙酸、3,3-硫代二丙酸、氨基硫脲、巯基乙酸、硫代二甘酸(Thiodiglycolic acid)、巯基丁二酸、硫代乙酰胺、二硫代甘醇酸(Dithioglycolic acid)、二硫代二乙酸(Dithiodiglycolic acid)或它们的碱性盐等。此外,此类硫化合物可以为单独一种,也可以为2种以上的混合物。化学转化处理液中的硫化合物的含量,以硫原子换算,优选为100~1500ppm,更优选为300~1000ppm,进一步优选为400~800ppm。通过含有硫化合物而形成的3价铬化学转化膜,膜中的钴离子浓度即使在不足0.2μg/cm2,优选在不足0.17μg/cm2时,也具有充分的耐腐蚀性。此外,通过前述化学转化处理液形成的3价铬化学转化膜,由于膜中的钴离子浓度低,因此可以抑制3价铬化学转化膜中产生的6价铬。
前述化学转化处理液中,即使大幅地降低处理液中的氮含量也可以维持高耐腐蚀性。在优选的以氮原子换算的氮含量为500ppm以下,优选为200ppm以下。更优选为40~200ppm,进一步优选为60~130ppm。
此外,前述化学转化处理液中,可以含有1种以上硅化合物。作为硅化合物,对其没有限制,可以列举胶体二氧化硅、硅酸钠、硅酸钾、硅酸锂等。在含有硅化合物的情况下,化学转化处理液中的硅化合物的浓度,以Si计,优选为1~20g/l,更优选为2~10g/l。特别优选的为胶体二氧化硅,其浓度以20%SiO2水溶液计优选为1~100ml/l。通过含有胶体二氧化硅,可以形成Si和O的层与Cr和O的层的2层结构膜,还可以提高耐腐蚀性。
此外,前述化学转化处理液中,可以含有1种以上膜综合摩擦系数降低剂。作为此类膜综合摩擦系数降低剂,可以列举例如日本特开2005-248233号公报记载的喹啉磺酸、喹哪啶酸、喹吖酞酮等的喹啉系化合物或其衍生物。在含有膜综合摩擦系数降低剂的情况下,化学转化处理液中的该膜综合摩擦系数降低剂的浓度,优选为0.1~25g/l,更优选为0.2~15g/l。用含有此类膜综合摩擦系数降低剂的前述化学转化处理液处理而形成的本发明的3价铬化学转化膜,成为膜综合摩擦系数降低的膜。
此外,前述化学转化处理液中,可以含有选自无机酸及其碱性盐等的1种以上。作为无机酸,可以列举例如硫酸、硝酸、盐酸等,但并不限于此。在含有选自无机酸及其碱性盐等的1种以上的情况下,化学转化处理液中的该无机酸及其碱性盐的浓度,优选为0.01~50g/L,更优选为0.05~20g/L。
此外,前述化学转化处理液中,可以含有选自次磷酸、磷酸等的磷的含氧酸及它们的碱性盐等的1种以上。在含有选自次磷酸、磷酸等的磷的含氧酸及它们的碱性盐等的1种以上的情况下,化学转化处理液中的磷的含氧酸及它们的碱性盐的浓度,优选为0.1~50g/L,更优选为4~25g/L。
此外,前述化学转化处理液中,作为3价铬离子的螯合剂,可以含有1种以上的羟基羧酸、一元羧酸、多元羧酸、氨基羧酸及它们的碱性盐等。作为羟基羧酸,可以列举苹果酸等,但并不限于此。作为一元羧酸,可以列举甲酸、醋酸等,但并不限于此。作为多元羧酸,可以列举草酸、丙二酸、琥珀酸、己二酸、二甘醇酸等二元羧酸,丙三羧酸等三元羧酸等,但并不限于此。作为氨基羧酸,可以列举甘氨酸、天冬氨酸等,但并不限于此。其中,优选为多元羧酸,更优选为草酸、丙二酸、琥珀酸。在含有上述羧酸及它们的碱性盐的情况下,相对于1mol的3价铬离子,化学转化处理液中的该羧酸及它们的碱性盐的浓度,优选为0.2~2mol的范围,更优选为0.3~2mol的范围,进一步优选为0.5~2mol的范围,再进一步优选为0.7~1.8mol的范围。
此外,前述化学转化处理液中,可以含有选自Mg、Al、Mn、Ti、W、V、Mo、Ni、Fe、Zn、Zr、Ca、Nb、Ta、Sn和Ce中的1种以上的金属离子。在含有前述金属离子的情况下,化学转化处理液中的上述金属离子的浓度,优选为1~10g/l,更优选为2~8g/l。
前述化学转化处理液的pH值,优选为0.5~5,更优选为2~3。为了将pH值调节到该范围内,可以使用上述无机酸离子,或者也可以使用氢氧化钾、氨水等碱性剂。
前述化学转化处理液中的上述必要成分的剩余部分为水。
作为使用前述化学转化处理液、在镀锌或镀锌合金上形成3价铬化学转化膜的方法,通常为在前述化学转化处理液中浸渍镀锌或镀锌合金的基体的方法。浸渍时的化学转化处理液的温度为例如10~70℃。优选为25~35℃。浸渍时间,优选为5~600秒,更优选为15~120秒。另外,为了使镀锌或镀锌合金表面活化,可以在3价铬化学转化处理前使其浸渍在稀硝酸溶液或稀硫酸溶液、稀盐酸溶液、稀氢氟酸溶液等中。上述以外的条件、处理操作,可以按照现有的6价铬酸盐处理方法来进行。
通过对使用本发明的化学转化处理液形成的3价铬化学转化膜实施保护涂层处理,能够进一步提高耐腐蚀性,是对为了获得更好的耐腐蚀性非常有效的方法。例如,首先,使用本发明的化学转化处理液在镀锌或镀锌合金上形成3价铬化学转化膜,水洗后用保护涂层处理液浸渍处理或电解处理后,干燥。此外,也可以在形成3价铬化学转化膜后干燥,重新用保护涂层处理液浸渍处理或电解处理后,干燥。这里,所述的保护涂层包括硅酸盐、磷酸盐等无机膜是无可非议的,而聚乙烯、聚氯乙烯、聚苯乙烯、聚丙烯、甲基丙烯酸树脂、聚碳酸酯、聚酰胺、聚缩醛、氟树脂、脲醛树脂、酚醛树脂、不饱和聚酯树脂、聚氨酯、醇酸树脂、环氧树脂、三聚氰胺树脂等有机膜也是有效的。
作为用于实施此类保护涂层的保护涂层处理液,可以使用例如Dipsol Chemicals Co.,Ltd制造的DIPCOAT W、CC445等。保护被膜的厚度可以为任意的,以0.1~30μm为佳。
下面,示出实施例和比较例来说明本发明。
实施例
(实施例1~8)
实施例1~2,6~8以厚度8μm对M6螺栓(材质:铁)进行锌酸盐镀锌(Dipsol Chemicals Co.,Ltd制造的NZ-200),实施例3~5以厚度8μm对M6螺栓(材质:铁)进行酸性镀锌(DipsolChemicals Co.,Ltd制造的EZ-960),然后在表1所示的条件下浸渍在表1所示的化学转化处理液中。此外,实施例6~8中,在表1所示的条件下在表1所示的后处理液中进行浸渍处理。浸渍处理后,将膜在80℃的条件下干燥10分钟。
作为Cr3+源使用40%硝酸铬水溶液,作为Co2+源使用硝酸钴。其余部分为水。
(比较例1)
以厚度8μm对M6螺栓(材质:铁)进行锌酸盐镀锌(DipsolChemicals Co.,Ltd制造的NZ-200),然后进行6价铬酸盐处理。6价铬酸盐处理液中使用Dipsol Chemicals Co.,Ltd制造的Z-493(10ml/l),进行25℃下20秒的浸渍处理。浸渍处理后,在60℃的条件下干燥10分钟。
(比较例2)
以厚度8μm对M6螺栓(材质:铁)进行锌酸盐镀锌(DipsolChemicals Co.,Ltd制造的NZ-200),在其上形成3价铬化学转化膜。化学转化处理液中使用下述组成的化学转化处理液,进行30℃下40秒的浸渍处理。浸渍处理后,在80℃的条件下干燥10分钟。
Cr3+4g/l(使用40%硝酸铬,以Cr计为0.077mol/l)草酸12g/l
Co(NO3)210g/l(以Co计为0.034mol/l)
pH 2.3
在表2中示出了实施例1~8和比较例1及2中所得到的化学转化膜中的Cr3+浓度、Cr6+浓度、Co2+浓度、外观、盐水喷雾试验(JIS-Z-2371)结果及放置试验后的6价铬的溶出量。如表3所示,与比较例1的现有的6价铬酸盐化学转化膜相比,实施例1~8的膜的情况下,也可以获得与其同等以上的耐腐蚀性。此外,放置试验后的Cr6+的溶出量也未达到测定界限值。
表2
(实施例9~11)
以厚度8μm对M6螺栓(材质:铁)进行锌酸盐镀锌(DipsolChemicals Co.,Ltd制造的NZ-200),然后在表3所示的条件下在表3所示的化学转化处理液中进行浸渍处理。
浸渍处理后,将膜在80℃的条件下干燥10分钟。
表3
作为Cr3+源使用35%氯化铬水溶液(实施例9)和35%硫酸铬水溶液(实施例10和11)。作为Co2+源使用氯化钴(实施例9)和硫酸钴(实施例10和11)。Si为酸性胶体二氧化硅(日产化学制スノ一テツクスO)。其余部分为水。
(实施例12~14)
实施例9的3价铬化学转化膜中进行保护涂层处理。保护涂层处理条件如表4所示。
[表4]
在表5中示出了实施例9~14和比较例1及2中所得到的化学转化膜中的Cr3+浓度、Cr6+浓度、Co2+浓度、外观、盐水喷雾试验(JIS-Z-2371)结果及6价铬的溶出量。如表5所示,与比较例1的现有的6价铬酸盐化学转化膜相比,实施例9~14的膜的情况下均获得与其同等以上的耐腐蚀性。此外,保护涂层处理后的膜(实施例12~14),可以获得比现有的6价铬酸盐化学转化膜更好的耐腐蚀性。此外,放置试验后的Cr6+的溶出量也未到达测定界限值。
表5
(膜中的Cr6+浓度的测定)
将膜试样(50cm2)浸渍在温度100℃的约50ml热水中10分钟,以使用二苯碳酰二肼(diphenyl carbazide)的吸光光度法(依照EN-15205)求得从膜试样中溶出的6价铬的量。
(膜中的Cr3+浓度和Co2+浓度的测定)
将测定Cr6+浓度后的同一试样溶解于盐酸中,对其溶液通过ICP发光分光分析测定Cr3+、Co2+浓度。
(盐水喷雾试验)
盐水喷雾试验依照JIS-Z-2371进行了评价。
(放置试验方法和放置试验后的6价铬溶出量的测定)
放置试验以将溶出试验用试样在维持于温度80℃湿度95%的恒温恒湿槽中放置30天的方法进行促进试验。接着,放置试验后采用与前述的膜中的Cr6+浓度的测定方法相同的方法,将试样在温度100℃的热水中浸渍10分钟,以使用二苯碳酰二肼(diphenyl carbazide)的吸光光度法(依照EN-15205)求得从膜试样中溶出的6价铬的量。
(实施例15~20)
以厚度8μm对M6螺栓(材质:铁)进行锌酸盐镀锌(DipsolChemicals Co.,Ltd制造的NZ-200),然后在表6所示的条件下在表6所示的化学转化处理液中进行浸渍处理。
浸渍处理后,将膜在80℃的条件干燥10分钟。
表6
作为Cr3+源使用35%氯化铬水溶液。作为Co2+源使用氯化钴。Si为酸性胶体二氧化硅(日产化学制造スノ一テツクスO)。剩余部分为水。另外,氮含量来自于NO3 -。
[表7]
表7
Claims (7)
1.一种化学转化处理液,其特征在于,其为用于在镀锌或镀锌合金上形成3价铬化学转化膜的化学转化处理液,处理液中的3价铬离子含量为0.002~0.5mol/l,6价铬离子浓度为1ppm以下,钴离子含量为250ppm以下,以硫原子换算含有100~1500ppm左右的硫化合物。
2.根据权利要求1所述的化学转化处理液,以氮原子换算的氮含量为500ppm以下。
3.根据权利要求1或2所述的化学转化处理液,其还含有硅化合物。
4.根据权利要求1~3中任一项所述的化学转化处理液,其还含有喹啉系化合物或其衍生物。
5.使用权利要求1~4中任一项所述的化学转化处理液处理而形成的3价铬化学转化膜,其为在镀锌或镀锌合金的表面上形成的3价铬化学转化膜,该3价铬化学转化膜在盐水喷雾试验中的耐腐蚀性即白锈发生时间为96小时以上,在化学转化膜中的以金属原子换算的6价铬浓度不足0.01μg/cm2,在恒温恒湿槽中温度80℃湿度95%下放置30天后的6价铬的溶出量不足0.05μg/cm2,所述溶出量为将膜在温度100℃的热水中浸渍10分钟时的溶出量。
6.根据权利要求5所述的3价铬化学转化膜,其中,化学转化膜中的以金属原子换算的3价铬浓度为2~20μg/cm2。
7.根据权利要求5或6所述的3价铬化学转化膜,其中,化学转化膜中的钴浓度为不足0.2μg/cm2。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007203284 | 2007-08-03 | ||
JP2007-203284 | 2007-08-03 | ||
JP2007298411 | 2007-11-16 | ||
JP2007-298411 | 2007-11-16 | ||
CN200880110181A CN101815809A (zh) | 2007-08-03 | 2008-08-04 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200880110181A Division CN101815809A (zh) | 2007-08-03 | 2008-08-04 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102268667A true CN102268667A (zh) | 2011-12-07 |
CN102268667B CN102268667B (zh) | 2016-08-10 |
Family
ID=40341329
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510202612.3A Pending CN104805427A (zh) | 2007-08-03 | 2008-08-04 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
CN201110236268.1A Active CN102268667B (zh) | 2007-08-03 | 2008-08-04 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
CN201210217695XA Pending CN102758197A (zh) | 2007-08-03 | 2008-08-04 | 水洗水或后处理液 |
CN200880110181A Pending CN101815809A (zh) | 2007-08-03 | 2008-08-04 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510202612.3A Pending CN104805427A (zh) | 2007-08-03 | 2008-08-04 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210217695XA Pending CN102758197A (zh) | 2007-08-03 | 2008-08-04 | 水洗水或后处理液 |
CN200880110181A Pending CN101815809A (zh) | 2007-08-03 | 2008-08-04 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
Country Status (6)
Country | Link |
---|---|
US (3) | US20100203327A1 (zh) |
EP (3) | EP2940188B1 (zh) |
JP (2) | JP5914949B2 (zh) |
CN (4) | CN104805427A (zh) |
ES (1) | ES2638442T3 (zh) |
WO (1) | WO2009020097A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104651823A (zh) * | 2015-02-14 | 2015-05-27 | 上海盛田化工科技有限公司 | 一种无钴环保三价铬黑色钝化液及其制备方法 |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009031568A1 (ja) * | 2007-09-03 | 2009-03-12 | Yuken Industry Co., Ltd. | 化成処理のための組成物およびその処理により形成された化成皮膜を有する部材 |
KR20100002359U (ko) * | 2008-08-26 | 2010-03-08 | 정순학 | 비닐하우스용 파이프 고정구 |
US8272571B2 (en) * | 2008-08-29 | 2012-09-25 | The Invention Science Fund I, Llc | E-paper display control of classified content based on e-paper conformation |
CN102301033B (zh) * | 2009-01-30 | 2013-10-23 | 油研工业股份有限公司 | 用于化学转化处理的组合物及具有由该组合物形成的化学转化膜的部件 |
IT1405319B1 (it) | 2010-12-27 | 2014-01-03 | Fontana R D S R L | Procedimento di rivestimento di pezzi metallici filettati |
EP2492371A1 (de) * | 2011-02-24 | 2012-08-29 | Dr.Ing. Max Schlötter GmbH & Co. KG | Cobalt-freie Passivierungslösung und Verfahren zur Abscheidung Cobalt-freier Passivierungsschichten auf Zink- und Zinklegierungsoberflächen |
US20140017409A1 (en) | 2011-03-30 | 2014-01-16 | Mahindra & Mahindra Limited | Corrosion resistance passivation formulation and process of preparation thereof |
WO2013065813A1 (ja) * | 2011-11-02 | 2013-05-10 | 東罐マテリアル・テクノロジー株式会社 | 六価クロム溶出低減複合酸化物顔料 |
CN103205741B (zh) * | 2012-01-13 | 2016-01-20 | 苏州汉扬精密电子有限公司 | 镁合金钝化液及镁合金表面处理方法 |
JP6216936B2 (ja) * | 2013-01-24 | 2017-10-25 | ユケン工業株式会社 | 反応型化成処理用酸性組成物および化成皮膜をその表面に備える部材の製造方法 |
CN103215787A (zh) * | 2013-04-18 | 2013-07-24 | 无锡小天鹅股份有限公司 | 洗衣机内筒支架及其制造方法和具有该内筒支架的洗衣机 |
CN103320779B (zh) * | 2013-06-25 | 2015-05-20 | 上海应用技术学院 | 一种抑制三价铬钝化层中六价铬形成的钝化液及制备方法和应用 |
US9683293B2 (en) | 2013-08-07 | 2017-06-20 | The Boeing Company | Reduction of chromium waste water in an aluminum conversion coat processing line |
CN105518090B (zh) * | 2013-08-28 | 2018-04-03 | 迪普索股份公司 | 3价铬化成被膜或无铬化成被膜的面涂剂用的摩擦调整剂及含有该摩擦调整剂的面涂剂 |
CN106661638B (zh) * | 2014-08-04 | 2019-12-31 | 西铁城时计株式会社 | 皮革或皮革制品及其制造方法、6价铬处理剂、粗皮革或粗皮革制品中的6价铬的处理方法 |
US9915006B2 (en) | 2015-07-10 | 2018-03-13 | Yuken Industry Co., Ltd. | Reactive-type chemical conversion treatment composition and production method of member with chemical conversion coated surface |
JP6562782B2 (ja) * | 2015-09-04 | 2019-08-21 | 日本パーカライジング株式会社 | 金属表面処理剤 |
US10376824B2 (en) * | 2016-03-22 | 2019-08-13 | Ecological World For Life S.A.S. | Mechanical system to capture and transform contaminant gases, and method to purify air |
JP6377226B1 (ja) * | 2017-09-14 | 2018-08-22 | ディップソール株式会社 | 亜鉛又は亜鉛合金基材用3価クロム化成処理液及びそれを用いた化成処理方法 |
CN108823559A (zh) * | 2018-08-06 | 2018-11-16 | 广州和力表面处理技术有限公司 | 一种罐盖包装材料前处理用三价铬钝化剂及其制备方法 |
TW202140854A (zh) | 2019-12-20 | 2021-11-01 | 德商德國艾托特克公司 | 用於在經鋅或鋅鎳塗覆之基材上沈積含鉻鈍化層的鈍化組合物以及方法 |
EP4288581A1 (en) | 2021-02-05 | 2023-12-13 | Atotech Deutschland GmbH & Co. KG | Method for depositing a chromium-comprising passivation layer on a zinc-comprising coating |
CN113549911A (zh) * | 2021-07-27 | 2021-10-26 | 贵州航天精工制造有限公司 | 一种镀锌彩色钝化溶液及其钝化工艺 |
US12037690B2 (en) | 2022-06-13 | 2024-07-16 | Chemeon Surface Technology, Llc | Conversion coating application system including hydrogels and methods of using same |
JP7340900B1 (ja) * | 2023-06-01 | 2023-09-08 | ユケン工業株式会社 | 3価クロム黒色化成処理用組成物および化成被膜を備える部材の製造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005085497A1 (ja) * | 2004-03-03 | 2005-09-15 | Dipsol Chemicals Co., Ltd. | 3価クロメート処理溶液用の皮膜総合摩擦係数低減剤、3価クロメート処理溶液及びその製造方法、並びに総合摩擦係数が低減した3価クロメート皮膜及びその製造方法 |
CN1729311A (zh) * | 2002-03-14 | 2006-02-01 | 迪普索尔化学株式会社 | 在锌或锌合金镀层上形成不含六价铬的黑色转化膜的处理溶液以及在锌或锌合金镀层上形成不含六价铬的黑色转化膜的方法 |
JP2006028547A (ja) * | 2004-07-13 | 2006-02-02 | Mihara Sangyo:Kk | 表面処理液およびその調製方法 |
EP1693485A1 (en) * | 2003-12-09 | 2006-08-23 | Dipsol Chemicals Co., Ltd. | Liquid trivalent chromate for aluminum or aluminum alloy and method for forming corrosion-resistant film over surface of aluminum or aluminum alloy by using same |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5215507B2 (zh) | 1973-05-18 | 1977-04-30 | ||
US4392922A (en) * | 1980-11-10 | 1983-07-12 | Occidental Chemical Corporation | Trivalent chromium electrolyte and process employing vanadium reducing agent |
DE19615664A1 (de) * | 1996-04-19 | 1997-10-23 | Surtec Produkte Und Systeme Fu | Chrom(VI)freie Chromatschicht sowie Verfahren zu ihrer Herstellung |
US7314671B1 (en) * | 1996-04-19 | 2008-01-01 | Surtec International Gmbh | Chromium(VI)-free conversion layer and method for producing it |
CN1217032A (zh) * | 1996-04-26 | 1999-05-19 | 亨凯尔公司 | 铬酸盐钝化及其储存稳定的浓缩溶液 |
JPH1081976A (ja) * | 1996-09-05 | 1998-03-31 | Nisshin Steel Co Ltd | クロメ−ト処理液および処理方法 |
JPH10176279A (ja) * | 1996-12-18 | 1998-06-30 | Nisshin Steel Co Ltd | 耐白錆性と耐Cr(VI)イオン溶出性に優れた構造物溶 融めっき鋼材の製造方法 |
JP3983386B2 (ja) * | 1998-04-03 | 2007-09-26 | 日本ペイント株式会社 | クロメート防錆処理剤 |
WO1999063012A1 (fr) * | 1998-06-01 | 1999-12-09 | Nihon Parkerizing Co., Ltd. | Agent de traitement de surface a base aqueuse |
JP2000199074A (ja) * | 1998-12-28 | 2000-07-18 | Nippon Parkerizing Co Ltd | 希土類・鉄系焼結永久磁石の沈着型表面処理液および表面処理方法、ならびに該表面処理方法により得られた表面を有する希土類・鉄系焼結永久磁石 |
JP2002199074A (ja) * | 2000-12-25 | 2002-07-12 | Hayami Kosan Kk | ネックストラップ |
US20040173289A1 (en) * | 2001-01-31 | 2004-09-09 | Yasuhiro Kinoshita | Rustproofing agent for zinc plated steel sheet |
JP4145016B2 (ja) * | 2001-01-31 | 2008-09-03 | 日本パーカライジング株式会社 | 亜鉛系メッキ鋼板用防錆処理剤および亜鉛系メッキ鋼板 |
JP2003147544A (ja) * | 2001-11-07 | 2003-05-21 | Nippon Parkerizing Co Ltd | 亜鉛系メッキ膜の表面処理膜、亜鉛系メッキ膜の表面処理液、及び表面処理方法 |
JP3332373B1 (ja) | 2001-11-30 | 2002-10-07 | ディップソール株式会社 | 亜鉛及び亜鉛合金めっき上に六価クロムフリー防錆皮膜を形成するための処理溶液、六価クロムフリー防錆皮膜及びその形成方法。 |
JP3332374B1 (ja) * | 2001-11-30 | 2002-10-07 | ディップソール株式会社 | 亜鉛及び亜鉛合金めっき上に六価クロムフリー防錆皮膜を形成するための処理溶液、六価クロムフリー防錆皮膜及びその形成方法。 |
US7029541B2 (en) * | 2002-01-24 | 2006-04-18 | Pavco, Inc. | Trivalent chromate conversion coating |
US20050109426A1 (en) * | 2002-03-14 | 2005-05-26 | Dipsol Chemicals Co., Ltd. | Processing solution for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers, and method for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers |
JP3620510B2 (ja) * | 2002-04-05 | 2005-02-16 | ユケン工業株式会社 | 基材とその製造方法と自動車部品 |
JP2005085497A (ja) | 2003-09-04 | 2005-03-31 | Furukawa Electric Co Ltd:The | 積層コネクタ |
JP4508634B2 (ja) * | 2003-12-26 | 2010-07-21 | 株式会社タイホー | 金属表面処理剤、金属表面処理液、これによって形成された耐食性着色皮膜、この耐食性着色皮膜を有する耐食性着色部品、およびこの耐食性着色部品の製造方法 |
JP3584937B1 (ja) * | 2004-01-05 | 2004-11-04 | ユケン工業株式会社 | 6価クロムフリー黒色防錆皮膜と表面処理液および処理方法 |
JP4738747B2 (ja) * | 2004-01-22 | 2011-08-03 | 日本表面化学株式会社 | 黒色被膜剤及び黒色被膜形成方法 |
JP5061395B2 (ja) * | 2004-02-24 | 2012-10-31 | 日本表面化学株式会社 | 亜鉛又は亜鉛−ニッケル合金めっき用六価クロムフリー被膜形成剤及び形成方法 |
JP2005240084A (ja) | 2004-02-25 | 2005-09-08 | Nitto Seiko Co Ltd | 三価クロメート鍍金システム |
JP2006274321A (ja) * | 2005-03-28 | 2006-10-12 | Mihara Sangyo:Kk | 表面処理皮膜 |
JP4520360B2 (ja) * | 2005-05-13 | 2010-08-04 | 日東精工株式会社 | めっき被膜中の不純物濃度計算プログラム |
WO2006128154A1 (en) * | 2005-05-26 | 2006-11-30 | Pavco, Inc. | Trivalent chromium conversion coating and method of application thereof |
JP4429214B2 (ja) * | 2005-06-07 | 2010-03-10 | 株式会社ムラタ | 表面処理液及び化成皮膜の形成方法 |
JP5007469B2 (ja) * | 2005-06-09 | 2012-08-22 | 日本表面化学株式会社 | 緑色三価クロム化成皮膜 |
JP5161761B2 (ja) * | 2006-02-17 | 2013-03-13 | ディップソール株式会社 | 亜鉛又は亜鉛合金上に黒色の3価クロム化成皮膜を形成するための処理溶液及び亜鉛又は亜鉛合金上に黒色の3価クロム化成皮膜を形成する方法 |
JP5155850B2 (ja) * | 2006-03-03 | 2013-03-06 | ディップソール株式会社 | 亜鉛又は亜鉛合金上に黒色の3価クロム化成皮膜を形成するための処理水溶液及び黒色3価クロム化成皮膜の形成方法 |
US20070243397A1 (en) | 2006-04-17 | 2007-10-18 | Ludwig Robert J | Chromium(VI)-free, aqueous acidic chromium(III) conversion solutions |
US20090014094A1 (en) * | 2007-07-12 | 2009-01-15 | Joseph Kuezynski | Methods for Reducing Hexavalent Chromium in Trivalent Chromate Conversion Coatings |
CA2722413C (en) * | 2008-04-25 | 2016-10-04 | Henkel Ag & Co. Kgaa | Trichrome passivates for treating galvanized steel |
US20200094456A1 (en) | 2018-09-21 | 2020-03-26 | Dentsply Sirona Inc. | Method and apparatus for overmolding gutta-percha onto carriers |
-
2008
- 2008-08-04 ES ES08826984.0T patent/ES2638442T3/es active Active
- 2008-08-04 CN CN201510202612.3A patent/CN104805427A/zh active Pending
- 2008-08-04 JP JP2009526450A patent/JP5914949B2/ja active Active
- 2008-08-04 EP EP15171141.3A patent/EP2940188B1/en active Active
- 2008-08-04 CN CN201110236268.1A patent/CN102268667B/zh active Active
- 2008-08-04 US US12/671,786 patent/US20100203327A1/en not_active Abandoned
- 2008-08-04 EP EP08826984.0A patent/EP2189551B1/en not_active Revoked
- 2008-08-04 WO PCT/JP2008/063963 patent/WO2009020097A1/ja active Application Filing
- 2008-08-04 CN CN201210217695XA patent/CN102758197A/zh active Pending
- 2008-08-04 CN CN200880110181A patent/CN101815809A/zh active Pending
- 2008-08-04 EP EP13199555.7A patent/EP2735626B1/en active Active
-
2014
- 2014-01-14 US US14/154,677 patent/US20160369107A9/en not_active Abandoned
- 2014-10-14 JP JP2014209643A patent/JP5957742B2/ja active Active
-
2017
- 2017-04-26 US US15/497,776 patent/US11643732B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1729311A (zh) * | 2002-03-14 | 2006-02-01 | 迪普索尔化学株式会社 | 在锌或锌合金镀层上形成不含六价铬的黑色转化膜的处理溶液以及在锌或锌合金镀层上形成不含六价铬的黑色转化膜的方法 |
EP1693485A1 (en) * | 2003-12-09 | 2006-08-23 | Dipsol Chemicals Co., Ltd. | Liquid trivalent chromate for aluminum or aluminum alloy and method for forming corrosion-resistant film over surface of aluminum or aluminum alloy by using same |
WO2005085497A1 (ja) * | 2004-03-03 | 2005-09-15 | Dipsol Chemicals Co., Ltd. | 3価クロメート処理溶液用の皮膜総合摩擦係数低減剤、3価クロメート処理溶液及びその製造方法、並びに総合摩擦係数が低減した3価クロメート皮膜及びその製造方法 |
JP2006028547A (ja) * | 2004-07-13 | 2006-02-02 | Mihara Sangyo:Kk | 表面処理液およびその調製方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104651823A (zh) * | 2015-02-14 | 2015-05-27 | 上海盛田化工科技有限公司 | 一种无钴环保三价铬黑色钝化液及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
US11643732B2 (en) | 2023-05-09 |
CN101815809A (zh) | 2010-08-25 |
EP2940188A1 (en) | 2015-11-04 |
WO2009020097A1 (ja) | 2009-02-12 |
EP2189551B1 (en) | 2017-07-05 |
JP5914949B2 (ja) | 2016-05-11 |
JP2015007294A (ja) | 2015-01-15 |
EP2735626A3 (en) | 2014-10-22 |
EP2735626A2 (en) | 2014-05-28 |
JPWO2009020097A1 (ja) | 2010-11-04 |
EP2940188B1 (en) | 2019-02-13 |
US20100203327A1 (en) | 2010-08-12 |
CN102758197A (zh) | 2012-10-31 |
US20140124099A1 (en) | 2014-05-08 |
EP2189551A4 (en) | 2011-04-06 |
ES2638442T3 (es) | 2017-10-20 |
CN102268667B (zh) | 2016-08-10 |
US20170226644A1 (en) | 2017-08-10 |
US20160369107A9 (en) | 2016-12-22 |
EP2189551A1 (en) | 2010-05-26 |
EP2735626B1 (en) | 2019-04-10 |
JP5957742B2 (ja) | 2016-07-27 |
CN104805427A (zh) | 2015-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102268667A (zh) | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 | |
US6858098B2 (en) | Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film, method for forming the same | |
US8070886B2 (en) | Treatment solution for forming of black trivalent chromium chemical coating on zinc or zinc alloy and method of forming black trivalent chromium chemical coating on zinc or zinc alloy | |
JP3774415B2 (ja) | 亜鉛及び亜鉛合金めっき上に黒色の六価クロムフリー化成皮膜を形成するための処理溶液及び亜鉛及び亜鉛合金めっき上に黒色の六価クロムフリー化成皮膜を形成する方法。 | |
JP3332374B1 (ja) | 亜鉛及び亜鉛合金めっき上に六価クロムフリー防錆皮膜を形成するための処理溶液、六価クロムフリー防錆皮膜及びその形成方法。 | |
US9157154B2 (en) | Aqueous treating solution for forming black trivalent-chromium chemical conversion coating on zinc or zinc alloy and method of forming black trivalent-chromium chemical conversion coating | |
US20090178734A1 (en) | Processing solution for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers, and method for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers | |
CN105779988A (zh) | 一种电镀锌用无铬钝化溶液及其钝化工艺 | |
KR20150015448A (ko) | 알루미늄 변성 콜로이달 실리카를 함유한 3가 크롬 화성 처리액 | |
JP2009173978A (ja) | 亜鉛又は亜鉛合金めっき上に加熱耐食性の良い3価クロム化成処理皮膜を形成するための化成処理方法 | |
JP4384471B2 (ja) | 亜鉛ニッケル合金めっき上に6価クロムフリー耐食性皮膜を形成する方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |