WO2010116854A1 - 化成処理液、その製造方法、及び化成皮膜の形成方法 - Google Patents
化成処理液、その製造方法、及び化成皮膜の形成方法 Download PDFInfo
- Publication number
- WO2010116854A1 WO2010116854A1 PCT/JP2010/054253 JP2010054253W WO2010116854A1 WO 2010116854 A1 WO2010116854 A1 WO 2010116854A1 JP 2010054253 W JP2010054253 W JP 2010054253W WO 2010116854 A1 WO2010116854 A1 WO 2010116854A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chemical conversion
- concentration
- range
- liquid
- conversion treatment
- Prior art date
Links
Images
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
- C23C22/48—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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
-
- 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
-
- 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
- C23C22/56—Treatment of aluminium 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
- C23C22/05—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
- C23C22/57—Treatment of magnesium or alloys based thereon
Definitions
- the present invention relates to a chemical conversion treatment technique, and more particularly to a chemical conversion treatment technique for forming a chemical conversion film on the surface of zinc or a zinc alloy.
- Chromate treatment is a typical chemical conversion treatment for preventing the surface of zinc or zinc alloy from rusting. Chromate treatment has been widely used industrially because it is inexpensive and simple.
- Japanese Patent Application Laid-Open No. 11-181578 describes a chemical conversion treatment solution containing aluminum, silicon, and one or more organic acids or inorganic acids.
- Patent Document 1 describes that a good appearance can be obtained when fluorine is added to the chemical conversion treatment liquid.
- Japanese Patent Application Laid-Open No. 2007-177304 contains at least one of a water-soluble magnesium inorganic salt and a water-soluble lithium inorganic salt, another water-soluble inorganic salt or inorganic silicate or colloidal silica, and hydrogen peroxide.
- a chemical conversion solution is described.
- Patent Document 2 describes that when this chemical conversion treatment solution is used, a chromium-free coating having sufficient corrosion resistance can be formed.
- Fluorine compounds are corrosive and difficult to treat wastewater.
- hydrogen peroxide requires low handling and has low stability. Therefore, a chromium-free chemical conversion treatment technique that does not use fluorine and hydrogen peroxide is desired.
- An object of the present invention is to provide a chromium-free chemical conversion treatment technique capable of forming a chemical conversion film excellent in corrosion resistance and appearance without using fluorine and hydrogen peroxide.
- a chemical conversion treatment liquid for forming a chemical conversion film on zinc or a zinc alloy containing no chromium, hydrogen peroxide and fluorine, and containing 0.5 g / L to 38 g. / L of magnesium, 0.5 g / L to 3.5 g / L of silicon, and nitrate ions of 0.36 g / L or more, containing the silicon as a water-soluble silicate, and optionally cobalt
- a chemical conversion treatment solution is further provided which is further contained at a concentration of up to 5 g / L and whose aluminum content is 0.08 g / L or less.
- a chemical conversion treatment liquid production method comprising: mixing the first and second concentrated liquids and optionally water to obtain a chemical conversion treatment liquid according to the first aspect.
- the first concentrated liquid contains magnesium and nitrate ions at higher concentrations than the second concentrated liquid, and the second concentrated liquid contains water-soluble silicate compared to the first concentrated liquid. Methods are provided that contain higher concentrations.
- a method for forming a chemical conversion film comprising subjecting zinc or a zinc alloy to chemical conversion treatment using the chemical conversion treatment liquid according to the first aspect.
- a micrograph of a chemical conversion film A micrograph of a chemical conversion film. Photomicrograph of other chemical conversion films.
- the chemical conversion treatment liquid according to the first aspect of the present invention is a chemical conversion treatment liquid for forming a chemical conversion film on zinc or a zinc alloy.
- This chemical conversion treatment liquid does not contain chromium, hydrogen peroxide, and fluorine, and typically does not contain aluminum.
- this chemical conversion liquid contains magnesium, cobalt, silicon, and nitrate ion in addition to aqueous solvents, such as water.
- This chemical conversion treatment liquid contains magnesium, for example, as magnesium ions.
- This chemical conversion treatment liquid may contain magnesium as a complex ion or polyatomic ion or as a combination thereof with magnesium ion.
- the magnesium concentration of this chemical conversion solution is in the range of 1 g / L to 12 g / L, and typically in the range of 1.8 g / L to 5 g / L.
- the magnesium concentration is lowered, the corrosion resistance is lowered.
- the magnesium concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- This chemical conversion treatment liquid contains cobalt as, for example, cobalt ions.
- This chemical conversion treatment liquid may contain cobalt as complex ions or polyatomic ions, or as a combination of these and cobalt ions.
- the cobalt concentration of this chemical conversion solution is in the range of 0.03 g / L to 5 g / L, and typically in the range of 0.05 g / L to 2 g / L.
- the cobalt concentration is lowered, the corrosion resistance is lowered.
- the cobalt concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- the cobalt concentration is 0.03 g / L or more, even if the chemical conversion treatment liquid is produced and used for a long period of time after use, gelation of the liquid does not occur.
- the cobalt concentration is 0.05 g / L or more, the viscosity of the liquid does not increase even if the chemical conversion treatment liquid is produced and used for a long period of time until it is used.
- This chemical conversion treatment liquid contains silicon as a water-soluble silicate.
- this chemical conversion treatment liquid contains silicon in a form other than water-soluble silicate, for example, as colloidal silica, the corrosion resistance and / or the better the chemical conversion treatment liquid contains silicon as water-soluble silicate. Appearance cannot be achieved.
- silicate for example, alkali metal salts such as sodium silicate and potassium silicate can be used.
- silicate a single compound may be used, or a plurality of compounds may be mixed and used.
- the silicon concentration of this chemical conversion solution is in the range of 0.7 g / L to 3.5 g / L, and typically in the range of 1.2 g / L to 3 g / L.
- the silicon concentration is lowered, the corrosion resistance is lowered.
- the silicon concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- the nitrate ion concentration of this chemical conversion treatment liquid is in the range of 3 g / L to 15 g / L, and typically in the range of 4.5 g / L to 11 g / L. When the nitrate ion concentration is lowered or increased, the corrosion resistance is lowered.
- This chemical conversion treatment liquid typically does not contain aluminum, but can contain aluminum at a concentration of 0.01 g / L or less. When the aluminum concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- This chemical conversion treatment liquid typically contains only magnesium and cobalt as metal elements, or contains only magnesium, cobalt and aluminum as metal elements.
- This chemical conversion treatment liquid may further contain a metal element other than chromium, magnesium, cobalt and aluminum.
- this chemical conversion treatment liquid may further contain a metal element such as sodium, potassium and calcium.
- the total amount of these additional metal elements is, for example, 10 g / L or less.
- This chemical conversion treatment liquid may further contain colloidal silica as long as sufficient performance is obtained.
- the colloidal silica concentration of the chemical conversion treatment liquid is such that the sum of the water-soluble silicate concentration converted to silicon and the colloidal silica concentration converted to silicon is within the range of the silicon concentration described above for the water-soluble silicate, for example. Set as follows.
- This chemical conversion treatment solution may contain only nitric acid as an acid, or may further contain other inorganic acids in addition to nitric acid.
- an additional inorganic acid for example, sulfuric acid, hydrochloric acid, or a combination thereof can be used.
- concentration of inorganic acids other than nitric acid in this chemical conversion liquid shall be 10 g / L or less, for example.
- This chemical conversion treatment solution is an acidic solution.
- the pH value of this chemical conversion liquid is, for example, in the range of 1.5 to 3.5, and typically in the range of 1.8 to 3.0.
- nitrate, sulfate, chloride, or a combination of two or more thereof can be used as a metal element source such as magnesium and cobalt.
- nitrate ion source for example, nitrates of metals such as nitric acid, magnesium and cobalt, or combinations thereof can be used.
- Formation of the chemical conversion film using this chemical conversion liquid is performed, for example, by the following method.
- First, an object to be processed made of zinc or a zinc alloy or an object to be processed provided with a layer made of zinc or a zinc alloy on the surface is prepared.
- As an object to be processed having a layer made of zinc or a zinc alloy on the surface for example, a metal part having a surface provided with a plating layer made of zinc or a zinc alloy is used.
- the surface made of zinc or zinc alloy to be treated is subjected to an activation treatment.
- This activation treatment is performed, for example, by bringing a nitric acid aqueous solution into contact with the surface of the object to be treated made of zinc or a zinc alloy.
- the object to be treated is immersed in an aqueous nitric acid solution.
- the treated object After activating the treated object to be treated, the treated object is subjected to chemical conversion treatment. That is, the chemical conversion liquid mentioned above is brought into contact with the object to be processed.
- the object to be processed is immersed in the chemical conversion solution.
- the temperature of the chemical conversion solution is, for example, in the range of 10 ° C. to 80 ° C., and typically in the range of 30 ° C. to 50 ° C.
- the time for which the chemical conversion treatment liquid is brought into contact with the object to be processed is, for example, in the range of 30 seconds to 600 seconds, and typically in the range of 60 seconds to 180 seconds.
- the processed material is washed with water, and then subjected to a drying process.
- the object to be treated is naturally dried or heated to a temperature higher than room temperature and dried.
- a drying temperature shall be 150 degrees C or less, for example.
- a chemical conversion film is formed on the surface of the workpiece.
- This method does not use chromium, fluorine or hydrogen peroxide. Nevertheless, according to this method, a chemical conversion film having excellent corrosion resistance and appearance can be formed.
- the chemical conversion treatment liquid may contain an organic acid.
- a treatment using a finishing agent may be performed.
- the object to be processed may be immersed in the finishing treatment liquid after the chemical conversion treatment and the water washing and before the drying treatment.
- the chemical conversion treatment liquid containing silicon is circulated in the form of two types of concentrated liquids, a first concentrated liquid not containing silicon and a second concentrated liquid containing silicon, and they are mixed on site and as needed. May be prepared by dilution.
- the silicon concentration in the second concentrated liquid is increased, the stability thereof is lowered. Therefore, the second concentrated liquid must be prepared to have a low silicon concentration. Therefore, the silicon concentration in the chemical conversion treatment liquid may be limited to a low value.
- the present inventors changed the composition of the chemical conversion treatment liquid according to the first aspect and examined its performance. As a result, it has been surprisingly found that lowering the silicon concentration broadens the acceptable concentration range for components other than silicon and cobalt. The technique described below is based on such knowledge.
- the chemical conversion treatment liquid according to the second aspect of the present invention is a chemical conversion treatment liquid for forming a chemical conversion film on zinc or a zinc alloy.
- This chemical conversion treatment liquid does not contain chromium, hydrogen peroxide, and fluorine, and typically does not contain aluminum.
- this chemical conversion liquid contains magnesium, silicon, and nitrate ion in addition to aqueous solvents, such as water.
- This chemical conversion treatment liquid contains magnesium, for example, as magnesium ions.
- This chemical conversion treatment liquid may contain magnesium as a complex ion or polyatomic ion or as a combination thereof with magnesium ion.
- the magnesium concentration of this chemical conversion treatment liquid is in the range of 0.5 g / L to 38 g / L, and typically in the range of 2.5 g / L to 25 g / L.
- the magnesium concentration is lowered, the corrosion resistance is lowered.
- the magnesium concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- This chemical conversion treatment liquid contains silicon as a water-soluble silicate.
- this chemical conversion treatment liquid contains silicon in a form other than water-soluble silicate, for example, as colloidal silica, the corrosion resistance and / or the better the chemical conversion treatment liquid contains silicon as water-soluble silicate. Appearance cannot be achieved.
- silicate for example, alkali metal salts such as sodium silicate and potassium silicate can be used.
- silicate a single compound may be used, or a plurality of compounds may be mixed and used.
- the silicon concentration of this chemical conversion treatment liquid is in the range of 0.5 g / L to 2.5 g / L, and typically in the range of 1 g / L to 1.6 g / L.
- the silicon concentration is lowered, the corrosion resistance is lowered.
- the silicon concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- the nitrate ion concentration of this chemical conversion solution is 0.36 g / L or more, and is typically in the range of 1.82 g / L to 51.06 g / L.
- the nitrate ion concentration is lowered, the corrosion resistance is greatly reduced.
- the nitrate ion concentration is increased, the corrosion resistance slightly decreases.
- This chemical conversion liquid can further contain cobalt.
- This chemical conversion treatment liquid may contain cobalt as cobalt ions.
- this chemical conversion liquid may contain cobalt as complex ion or polyatomic ion, or as a combination of them and cobalt ion.
- the cobalt concentration of this chemical conversion solution is 3.25 g / L or less, and is typically in the range of 0.05 g / L to 1.5 g / L.
- the corrosion resistance is slightly lowered.
- the cobalt concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- This chemical conversion treatment liquid typically does not contain aluminum, but can contain aluminum at a concentration of 0.08 g / L or less. When the aluminum concentration is increased, the corrosion resistance is lowered and the appearance is deteriorated.
- the aluminum concentration of this chemical conversion liquid is, for example, 0.03 g / L or less, and typically 0.01 g / L or less.
- This chemical conversion treatment liquid typically contains only magnesium and cobalt as metal elements, or contains only magnesium, cobalt and aluminum as metal elements.
- This chemical conversion treatment liquid may further contain a metal element other than chromium, magnesium, cobalt and aluminum.
- this chemical conversion treatment liquid may further contain a metal element such as sodium, potassium and calcium.
- This chemical conversion treatment liquid may further contain colloidal silica as long as sufficient performance is obtained.
- the colloidal silica concentration of the chemical conversion treatment liquid is such that the sum of the water-soluble silicate concentration converted to silicon and the colloidal silica concentration converted to silicon is within the range of the silicon concentration described above for the water-soluble silicate, for example. Set as follows.
- This chemical conversion treatment solution may contain only nitric acid as an acid, or may further contain other inorganic acids in addition to nitric acid.
- an additional inorganic acid for example, sulfuric acid, hydrochloric acid, or a combination thereof can be used.
- concentration of inorganic acids other than nitric acid in this chemical conversion liquid shall be 10 g / L or less, for example.
- This chemical conversion treatment solution is an acidic solution.
- the pH value of this chemical conversion solution is, for example, in the range of 1.0 to 5.0, and typically in the range of 1.5 to 3.0.
- nitrate, sulfate, chloride, or a combination of two or more thereof can be used as a metal element source such as magnesium and cobalt.
- nitrate ion source for example, nitrates of metals such as nitric acid, magnesium and cobalt, or combinations thereof can be used.
- This chemical conversion liquid can be manufactured, for example, by the following method. First, first and second concentrated liquids are prepared.
- the first concentrated liquid contains magnesium.
- the magnesium concentration in the first concentrated liquid is higher than the magnesium concentration in the chemical conversion liquid.
- the ratio M Mg 1 / M Mg C between the magnesium concentration M Mg 1 in the first concentrated liquid and the magnesium concentration M Mg C in the chemical conversion liquid is, for example, in the range of 1.0 to 672.0. It is in the range of 2.0 to 134.0.
- the first concentrated liquid further contains nitrate ions.
- the nitrate ion concentration in the first concentrated liquid is higher than the nitrate ion concentration in the chemical conversion treatment liquid.
- the first concentrated liquid typically does not contain silicon.
- the first concentrated liquid may further contain a small amount of silicon as a water-soluble silicate.
- the silicon concentration in the first concentrated liquid is set to a lower value than the silicon concentration in the second concentrated liquid.
- the pH value of the first concentrated liquid is, for example, in the range of 0.5 to 3.0, and typically in the range of 1.0 to 2.0.
- the first concentrated liquid having a large pH value cannot be stably produced. Further, when the pH value of the first concentrated liquid is small, in order to achieve the optimum pH value in the chemical conversion treatment liquid, it is necessary to further add an alkali to the chemical conversion treatment liquid, and it takes time to prepare the chemical conversion treatment liquid.
- the second concentrated liquid contains silicon as a water-soluble silicate.
- the silicon concentration in the second concentrated liquid is higher than the silicon concentration in the chemical conversion liquid.
- the ratio M Si 2 / M Si C between the silicon concentration M Si 2 in the second concentrated liquid and the silicon concentration M Si C in the chemical conversion liquid is, for example, in the range of 1.0 to 18.0, typically It is in the range of 2.0 to 9.0.
- the second concentrated liquid can further contain cobalt.
- the cobalt concentration in the second concentrated liquid is higher than the cobalt concentration in the chemical conversion treatment liquid.
- the pH value of the second concentrated liquid is, for example, in the range of 0.5 to 3.0, and typically in the range of 1.0 to 2.0.
- the second concentrated liquid having a large pH value tends to have low stability.
- the pH value of the second concentrated liquid is small, in order to achieve the optimum pH value in the chemical conversion treatment liquid, it is necessary to further add alkali to the chemical conversion treatment liquid, and it takes time to prepare the chemical conversion treatment liquid.
- the first and second concentrated liquids are mixed.
- a chemical conversion treatment liquid is obtained as described above.
- At least one of the first and second concentrates may be diluted with water before mixing.
- the mixed liquid may be diluted with water.
- the first and second concentrated liquids and water may be mixed at the same time.
- the first and second concentrated liquids and the mixed liquid may not be diluted with water.
- the first concentrated liquid does not contain silicon or contains it at a low concentration. Therefore, the first concentrated liquid is excellent in stability. Moreover, the silicon concentration in the second concentrated liquid is relatively low. Therefore, the second concentrated liquid is also excellent in stability. Therefore, the first and second concentrated liquids can be stored for a long time.
- the chemical conversion treatment liquid may be produced by diluting a single concentrated liquid.
- Formation of the chemical conversion film using this chemical conversion liquid is performed, for example, by the following method.
- First, an object to be processed made of zinc or a zinc alloy or an object to be processed provided with a layer made of zinc or a zinc alloy on the surface is prepared.
- As an object to be processed having a layer made of zinc or a zinc alloy on the surface for example, a metal part having a surface provided with a plating layer made of zinc or a zinc alloy is used.
- the surface made of zinc or zinc alloy to be treated is subjected to an activation treatment.
- This activation treatment is performed, for example, by bringing a nitric acid aqueous solution into contact with the surface of the object to be treated made of zinc or a zinc alloy.
- the object to be treated is immersed in an aqueous nitric acid solution.
- the treated object After activating the treated object to be treated, the treated object is subjected to chemical conversion treatment. That is, the chemical conversion liquid mentioned above is brought into contact with the object to be processed.
- the object to be processed is immersed in the chemical conversion solution.
- the temperature of the chemical conversion solution is, for example, in the range of 10 ° C. to 80 ° C., and typically in the range of 30 ° C. to 50 ° C.
- the time for which the chemical conversion treatment liquid is brought into contact with the object to be processed is, for example, in the range of 30 seconds to 600 seconds, and typically in the range of 60 seconds to 180 seconds.
- the processed material is washed with water, and then subjected to a drying process.
- the object to be treated is naturally dried or heated to a temperature higher than room temperature and dried.
- a drying temperature shall be 150 degrees C or less, for example.
- a chemical conversion film is formed on the surface of the workpiece.
- This method does not use chromium, fluorine or hydrogen peroxide. Nevertheless, according to this method, a chemical conversion film having excellent corrosion resistance and appearance can be formed.
- the chemical conversion solution used here has a low silicon concentration. Therefore, the silicon concentration in the concentrate used for the production of this chemical conversion treatment liquid can be made relatively low. A concentrated solution having a low silicon concentration is unlikely to gel even when stored for a long period of time.
- the chemical conversion solution used here has a wide allowable concentration range for components other than silicon and cobalt.
- the wide concentration range that can be tolerated for nitrate ions is advantageous, for example, in the following respects.
- the object to be treated prior to bringing the chemical conversion treatment liquid into contact with the object to be treated, the object to be treated is subjected to an activation treatment using an aqueous nitric acid solution and a water washing treatment.
- an activation treatment using an aqueous nitric acid solution and a water washing treatment.
- the aqueous nitric acid solution in the active treatment tank A part of the water is mixed in the water in the water washing tank, and the water in the water washing tank containing nitric acid is mixed in the chemical conversion liquid in the chemical conversion tank. Therefore, as the treatment is repeated, the nitrate ion concentration in the chemical conversion treatment solution increases.
- cobalt is an optional component.
- Nickel, chromium, cobalt, etc. are mentioned as an example of the metal which is easy to cause a metal allergy.
- Cobalt is a metal with a small environmental load compared to nickel and the like, and its use is hardly regulated at present.
- the absence of cobalt or the low cobalt concentration is also advantageous in this respect.
- the chemical conversion treatment liquid may contain an organic acid.
- a treatment using a finishing agent may be performed.
- the object to be processed may be immersed in the finishing treatment liquid after the chemical conversion treatment and the water washing and before the drying treatment.
- the technologies according to the first and second aspects can be combined with each other. For example, you may manufacture the chemical conversion liquid which concerns on a 1st aspect by the method demonstrated in the 2nd aspect.
- Treatment liquids 1A to 1T were prepared by mixing magnesium chloride hexahydrate, cobalt chloride hexahydrate, anhydrous sodium metasilicate, sodium nitrate, and pure water.
- the chemical conversion treatment using the treatment liquids 1A to 1T was performed at a treatment temperature of 40 ° C. and an immersion time of 120 seconds.
- the pH values of the treatment liquids 1A to 1T were adjusted to about 2.0 using sulfuric acid.
- the galvanized parts were sufficiently washed with water and dried at 100 ° C. for 5 minutes. As described above, a chemical conversion film was formed on the surface of the galvanized component.
- the corrosion resistance of the galvanized parts after the surface treatment was evaluated according to the salt spray test method defined in Japanese Industrial Standard JIS Z 2371 (2000).
- the salt spray test was continued for 50 hours, the area ratio of the corrosion products generated in the galvanized parts to the entire parts (hereinafter referred to as corrosion product generation rate) was measured.
- the evaluation when the corrosion product is not generated is “A”, the evaluation when the corrosion product generation rate is larger than 0% and 5% or less is “B”, and the corrosion product generation rate is 5%.
- the evaluation when the value was 10% or less was “C”, the evaluation when the corrosion product generation rate was greater than 10% and 50% or less was “D”, and the corrosion product generation rate was greater than 50%. In this case, the evaluation was “E”.
- Table 1 The evaluation results are summarized in Table 1 above.
- a chemical conversion film was formed on the surface of the galvanized component by the same method as described in Test 1 except that chemical conversion treatment liquids 5A to 5N were used instead of chemical conversion treatment liquids 1A to 1T.
- chemical conversion treatment liquids 5A to 5N contain aluminum.
- aluminum nitrate nonahydrate was used as the aluminum source.
- the appearance and corrosion resistance of the chemical conversion film thus obtained were evaluated by the same method as described in Test 1.
- the evaluation when the white powder was not observed on the surface was “ ⁇ ”, and the area ratio of the white powder generated on the galvanized part to the whole part was greater than 0% and 50% or less Was evaluated as “ ⁇ ”, and when this area ratio was larger than 50%, the evaluation was “x”.
- Table 5 summarizes the compositions and evaluation results of the treatment liquids 5A to 5N.
- a chemical conversion film was formed on the surface of the galvanized component by the same method as described in Test 1 except that chemical conversion treatment liquids 6A to 6E were used instead of chemical conversion treatment liquids 1A to 1T.
- the chemical conversion liquids 6A to 6E all contain other metals instead of magnesium.
- sodium molybdate, sodium tungstate, dipotassium hexafluorozirconate, aluminum nitrate, and titanium chloride were used as metal sources instead of the magnesium source.
- chemical conversion treatment solutions 7A to 7V were prepared by the same method as described for the chemical conversion treatment solutions 1A to 1T except that the composition was changed as shown in Table 7 below.
- these treatment liquids 7A to 7V were left at room temperature for 4 months.
- the pH values of the treatment liquids 7A to 7V after the lapse of 4 months were all in the range of 2.1 to 2.5.
- aqueous solutions 8A to 8K having different silicate concentrations were prepared.
- anhydrous sodium metasilicate was used as the silicate.
- These solutions 8A to 8K were left at room temperature for 12 months. And the state of the liquid after 12 months passed was visually evaluated.
- Table 8 below shows the silicon concentrations and evaluation results of the solutions 8A to 8K used here.
- the silicate concentration in the chemical conversion liquid is 1/3 or less of the silicate concentration in the concentrate, the silicate concentration in the chemical conversion liquid is 3.3 g / L in consideration of the stability of the concentrate. Or less, more preferably 3 g / L or less.
- Treatment liquid 9A was prepared by mixing sodium nitrate, anhydrous sodium metasilicate, cobalt chloride hexahydrate, and pure water.
- Treatment liquids 9B to 9Q were prepared by mixing magnesium chloride hexahydrate, sodium nitrate, anhydrous sodium metasilicate, cobalt chloride hexahydrate, and pure water.
- the appearance and corrosion resistance of the chemical conversion film thus obtained were evaluated by the same method as described in Test 1 except that the duration of the salt spray test was 72 hours. The evaluation results are summarized in Table 9 above.
- a chemical conversion film was formed on the surface of the galvanized component by the same method as described in Test 9 except that the chemical conversion liquids 10A to 10V were used instead of the chemical conversion liquids 9A to 9Q.
- the treatment liquid 10A was prepared by mixing magnesium chloride hexahydrate, anhydrous sodium metasilicate, cobalt chloride hexahydrate, and pure water.
- the treatment liquids 10B to 10V were prepared by mixing magnesium chloride hexahydrate, sodium nitrate, anhydrous sodium metasilicate, cobalt chloride hexahydrate, and pure water.
- a chemical conversion film was formed on the surface of the galvanized component by the same method as described in Test 9 except that the chemical conversion liquids 11A to 11R were used instead of the chemical conversion liquids 9A to 9Q.
- the treatment liquid 11A was prepared by mixing magnesium chloride hexahydrate, sodium nitrate, cobalt chloride hexahydrate, and pure water.
- the treatment liquids 11B to 11R were prepared by mixing magnesium chloride hexahydrate, sodium nitrate, anhydrous sodium metasilicate, cobalt chloride hexahydrate, and pure water.
- a chemical conversion treatment liquid similar to the treatment liquid 9J was prepared except that the silicon concentration was 3 g / L.
- this chemical conversion treatment liquid is referred to as “chemical conversion treatment liquid 9R”.
- a chemical conversion film was formed on the surface of the galvanized component by the same method as described above except that this chemical conversion treatment liquid 9R was used. Each of the chemical conversion film thus obtained and the chemical conversion film obtained using the treatment liquid 9J was photographed with a scanning electron microscope.
- FIG. 1 is a photomicrograph of a chemical conversion film obtained using the treatment liquid 9R.
- FIG. 2 is a photomicrograph of the chemical conversion film obtained using the treatment liquid 9J.
- a chemical conversion film was formed on the surface of the galvanized component by the same method as described in Test 9 except that the chemical conversion liquids 12A to 12P were used instead of the chemical conversion liquids 9A to 9Q.
- the treatment liquid 12A was prepared by mixing magnesium chloride hexahydrate, sodium nitrate, anhydrous sodium metasilicate, and pure water.
- the treatment liquids 12B to 12P were prepared by mixing magnesium chloride hexahydrate, sodium nitrate, anhydrous sodium metasilicate, cobalt chloride hexahydrate, and pure water.
- each of the chemical conversion liquids 13A to 13P contains aluminum.
- aluminum nitrate nonahydrate was used as the aluminum source.
- the appearance and corrosion resistance of the chemical conversion film thus obtained were evaluated by the same method as described in Test 9 except that the duration of the salt spray test was 24 hours.
- the evaluation when the white powder was not observed on the surface was “ ⁇ ”, and the area ratio of the white powder generated on the galvanized part to the whole part was greater than 0% and 50% Was evaluated as “ ⁇ ”, and when this area ratio was larger than 50%, the evaluation was “x”.
- Table 13 summarizes the compositions and evaluation results of the treatment liquids 13A to 13P.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Description
本発明の第1態様に係る化成処理液は、亜鉛又は亜鉛合金上に化成皮膜を形成するための化成処理液である。この化成処理液は、クロムと過酸化水素とフッ素とを含有しておらず、典型的には、アルミニウムも含有していない。そして、この化成処理液は、水などの水系溶媒に加え、マグネシウムとコバルトと珪素と硝酸イオンとを含有している。
まず、亜鉛若しくは亜鉛合金からなる被処理物又は表面に亜鉛若しくは亜鉛合金からなる層が設けられた被処理物を準備する。表面に亜鉛又は亜鉛合金からなる層が設けられた被処理物としては、例えば、表面に亜鉛又は亜鉛合金からなるめっき層が設けられた金属部品を使用する。
以上のようにして、被処理物の表面に化成皮膜を形成する。
珪素を含んだ化成処理液は、珪素を含んでいない第1濃縮液と珪素を含んだ第2濃縮液との2種類の濃縮液の形態で流通させ、それらを現場で混合及び必要に応じて希釈することにより調製することがある。第2濃縮液における珪素濃度を高くするとその安定性が低下するため、第2濃縮液は、低い珪素濃度を有するように調製しなければならない。それ故、化成処理液における珪素濃度は低い値に制限される可能性がある。
まず、第1及び第2濃縮液を準備する。
第1及び第2濃縮液の少なくとも一方は、混合する前に水で希釈してもよい。或いは、第1及び第2濃縮液を混合した後に、この混合液を水で希釈してもよい。或いは、第1及び第2濃縮液と水とを同時に混合してもよい。或いは、第1及び第2濃縮液並びに混合液は、水で希釈しなくてもよい。
まず、亜鉛若しくは亜鉛合金からなる被処理物又は表面に亜鉛若しくは亜鉛合金からなる層が設けられた被処理物を準備する。表面に亜鉛又は亜鉛合金からなる層が設けられた被処理物としては、例えば、表面に亜鉛又は亜鉛合金からなるめっき層が設けられた金属部品を使用する。
以上のようにして、被処理物の表面に化成皮膜を形成する。
<試験1>
本試験では、以下の方法により、化成処理液のマグネシウム濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液のコバルト濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液の珪素濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液の硝酸イオン濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液のアルミニウム濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液中の金属の種類が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液中のコバルト濃度が処理液の安定性に及ぼす影響を調べた。
本試験では、以下の方法により、濃縮液の安定性に水溶性珪酸塩の濃度が及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液のマグネシウム濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液の硝酸イオン濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液の珪素濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液の珪素濃度が化成皮膜の構造に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液のコバルト濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
本試験では、以下の方法により、化成処理液のアルミニウム濃度が化成皮膜の外観及び耐食性に及ぼす影響を調べた。
Claims (8)
- クロムと過酸化水素とフッ素とを含有していない、亜鉛又は亜鉛合金上に化成皮膜を形成するための化成処理液であって、0.5g/L乃至38g/Lのマグネシウムと、0.5g/L乃至3.5g/Lの珪素と、0.36g/L以上の硝酸イオンとを含有し、前記珪素を水溶性の珪酸塩として含み、任意にコバルトを5g/Lまでの濃度で更に含有し、アルミニウムの含有量は0.08g/L以下である化成処理液。
- 0.5g/L乃至2.5g/Lの珪素を前記水溶性の珪酸塩として含み、コバルトの濃度は3.25g/L以下である請求項1に記載の化成処理液。
- マグネシウムの濃度は2.5g/L乃至25g/Lの範囲内にあり、コバルトの濃度は0.05g/L乃至1.5g/Lの範囲内にあり、珪素の濃度は1g/L乃至1.6g/Lの範囲内にあり、硝酸イオンの濃度は1.8g/L乃至51g/Lの範囲内にある請求項2に記載の化成処理液。
- 0.7g/L乃至3.5g/Lの珪素を前記水溶性の珪酸塩として含み、マグネシウムの濃度は1g/L乃至12g/Lの範囲内にあり、コバルトの濃度は0.03g/L乃至5g/Lの範囲内にあり、硝酸イオンの濃度は3g/L乃至15g/Lの範囲内にあり、アルミニウムの含有量は0.01g/L以下である請求項1に記載の化成処理液。
- コバルトの濃度は0.05g/L以上である請求項4に記載の化成処理液。
- マグネシウムの濃度は1.8g/L乃至5g/Lの範囲内にあり、コバルトの濃度は0.05g/L乃至2g/Lの範囲内にあり、珪素の濃度は1.2g/L乃至3g/Lの範囲内にあり、硝酸イオンの濃度は4.5g/L乃至11g/Lの範囲内にある請求項4に記載の化成処理液。
- 第1及び第2濃縮液と任意に水とを混合して請求項1乃至6の何れか1項に記載の化成処理液を得ることを含んだ化成処理液の製造方法であって、前記第1濃縮液は、マグネシウム及び硝酸イオンの各々を前記第2濃縮液と比較してより高い濃度で含み、前記第2濃縮液は、水溶性の珪酸塩を前記第1濃縮液と比較してより高い濃度で含んだ方法。
- 亜鉛又は亜鉛合金を請求項1乃至6の何れか1項に記載の化成処理液を用いた化成処理に供することを含んだ化成皮膜の形成方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080025622XA CN102459699A (zh) | 2009-04-09 | 2010-03-12 | 化学转化处理液、其制造方法、以及化学转化被膜的形成方法 |
EP10761555.1A EP2418302A4 (en) | 2009-04-09 | 2010-03-12 | CHEMICAL CONVERSION LIQUID, PROCESS FOR PRODUCING THE SAME, AND PROCESS FOR FORMING CHEMICAL CONVERSION COATING FILM |
US13/253,288 US8999077B2 (en) | 2009-04-09 | 2011-10-05 | Chemical conversion treatment liquid, method of producing the same, and method of forming conversion layer |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-095047 | 2009-04-09 | ||
JP2009095047A JP4436885B1 (ja) | 2009-04-09 | 2009-04-09 | 化成処理液及び化成皮膜の形成方法 |
JP2010-053217 | 2010-03-10 | ||
JP2010053217A JP4830032B2 (ja) | 2010-03-10 | 2010-03-10 | 化成処理液、その製造方法、及び化成皮膜の形成方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/253,288 Continuation US8999077B2 (en) | 2009-04-09 | 2011-10-05 | Chemical conversion treatment liquid, method of producing the same, and method of forming conversion layer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010116854A1 true WO2010116854A1 (ja) | 2010-10-14 |
Family
ID=42936141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/054253 WO2010116854A1 (ja) | 2009-04-09 | 2010-03-12 | 化成処理液、その製造方法、及び化成皮膜の形成方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8999077B2 (ja) |
EP (1) | EP2418302A4 (ja) |
KR (1) | KR20110124365A (ja) |
CN (1) | CN102459699A (ja) |
TW (1) | TWI512141B (ja) |
WO (1) | WO2010116854A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111254426A (zh) * | 2020-02-04 | 2020-06-09 | 桂林理工大学 | 一种Zn-SiC复合镀层的硅酸盐彩色钝化方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11181578A (ja) | 1997-12-18 | 1999-07-06 | Nippon Hyomen Kagaku Kk | 金属表面処理剤と処理方法 |
JPH11335863A (ja) * | 1998-05-20 | 1999-12-07 | Nkk Corp | 耐食性に優れた表面処理鋼板の製造方法 |
JP2007009319A (ja) * | 2005-06-01 | 2007-01-18 | Meira Corp | 保護被膜形成用組成物、金属成型体の製造方法および金属成型体 |
JP2007177304A (ja) | 2005-12-28 | 2007-07-12 | Meira Corp | 防食被膜形成用処理液、二液型防食被膜形成用液体、防食被膜を有する金属成型体の製造方法及び防食被膜を有する金属成型体 |
JP2009057587A (ja) * | 2007-08-30 | 2009-03-19 | Nippon Parkerizing Co Ltd | 溶融めっき鋼材の表面改質処理方法、及び表面改質された溶融金属めっき鋼材 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3523383B2 (ja) | 1995-08-21 | 2004-04-26 | ディップソール株式会社 | 液体防錆皮膜組成物及び防錆皮膜形成方法 |
JPH11335864A (ja) | 1998-05-20 | 1999-12-07 | Nkk Corp | 耐食性に優れた表面処理鋼板の製造方法 |
JP4144721B2 (ja) | 1999-05-17 | 2008-09-03 | ユケン工業株式会社 | 金属材の防錆用処理液と防錆処理方法 |
JP5300113B2 (ja) | 2001-04-27 | 2013-09-25 | 日本表面化学株式会社 | 金属表面処理剤、金属表面処理剤を用いた金属表面処理方法及び表面処理を行った鉄部品 |
JP2004083771A (ja) | 2002-08-28 | 2004-03-18 | Nippon Hyomen Kagaku Kk | 金属保護被膜形成用組成物 |
JP2007023353A (ja) | 2005-07-19 | 2007-02-01 | Yuken Industry Co Ltd | 亜鉛系めっき部材のノンクロム反応型化成処理 |
JP4189884B2 (ja) | 2006-11-28 | 2008-12-03 | ユケン工業株式会社 | クロムフリー化成処理液および処理方法 |
CN100494494C (zh) * | 2006-12-21 | 2009-06-03 | 中国海洋石油总公司 | 一种金属表面处理组合物及其用途 |
-
2010
- 2010-03-12 KR KR1020117023572A patent/KR20110124365A/ko not_active Application Discontinuation
- 2010-03-12 CN CN201080025622XA patent/CN102459699A/zh active Pending
- 2010-03-12 EP EP10761555.1A patent/EP2418302A4/en not_active Withdrawn
- 2010-03-12 WO PCT/JP2010/054253 patent/WO2010116854A1/ja active Application Filing
- 2010-03-16 TW TW099107572A patent/TWI512141B/zh not_active IP Right Cessation
-
2011
- 2011-10-05 US US13/253,288 patent/US8999077B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11181578A (ja) | 1997-12-18 | 1999-07-06 | Nippon Hyomen Kagaku Kk | 金属表面処理剤と処理方法 |
JPH11335863A (ja) * | 1998-05-20 | 1999-12-07 | Nkk Corp | 耐食性に優れた表面処理鋼板の製造方法 |
JP2007009319A (ja) * | 2005-06-01 | 2007-01-18 | Meira Corp | 保護被膜形成用組成物、金属成型体の製造方法および金属成型体 |
JP2007177304A (ja) | 2005-12-28 | 2007-07-12 | Meira Corp | 防食被膜形成用処理液、二液型防食被膜形成用液体、防食被膜を有する金属成型体の製造方法及び防食被膜を有する金属成型体 |
JP2009057587A (ja) * | 2007-08-30 | 2009-03-19 | Nippon Parkerizing Co Ltd | 溶融めっき鋼材の表面改質処理方法、及び表面改質された溶融金属めっき鋼材 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2418302A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20120024428A1 (en) | 2012-02-02 |
TWI512141B (zh) | 2015-12-11 |
TW201037101A (en) | 2010-10-16 |
EP2418302A4 (en) | 2014-07-23 |
US8999077B2 (en) | 2015-04-07 |
KR20110124365A (ko) | 2011-11-16 |
CN102459699A (zh) | 2012-05-16 |
EP2418302A1 (en) | 2012-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5547404B2 (ja) | 金属表面処理用酸性・クロム非含有水溶液 | |
JP4276542B2 (ja) | 金属被覆基材の後処理加工 | |
US8764916B2 (en) | Agent for the production of anti-corrosion layers on metal surfaces | |
EP1433875A1 (en) | Chemical conversion coating agent and surface-treated metal | |
JP2007100206A (ja) | 亜鉛又は亜鉛合金上に黒色の6価クロムフリー化成皮膜を形成するための処理溶液 | |
BRPI0519957B1 (pt) | processo para revestir substratos metálicos, e, composições para revestimento de substratos metálicos | |
JP2005526902A (ja) | 亜鉛および亜鉛合金に対する非クロム性不動態化法 | |
JP4429214B2 (ja) | 表面処理液及び化成皮膜の形成方法 | |
JP2016132785A (ja) | 三価クロム化成皮膜処理液及び金属基材の処理方法 | |
JP4508634B2 (ja) | 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 | |
WO2013183644A1 (ja) | アルミ変性コロイダルシリカを含有した3価クロム化成処理液 | |
JP2010209456A (ja) | クロムめっき皮膜の防錆用浸漬処理液及び防錆処理方法 | |
JP5090101B2 (ja) | 亜鉛又は亜鉛合金めっき皮膜用の化成処理液及びそれを用いた防食皮膜の形成方法 | |
JP4436885B1 (ja) | 化成処理液及び化成皮膜の形成方法 | |
WO2010116854A1 (ja) | 化成処理液、その製造方法、及び化成皮膜の形成方法 | |
JP5061395B2 (ja) | 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 | |
JP4830032B2 (ja) | 化成処理液、その製造方法、及び化成皮膜の形成方法 | |
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 | |
JP4980607B2 (ja) | 溶融亜鉛めっき鋼材の黒色化処理方法及びそれによって得られる黒色化した溶融亜鉛めっき鋼材 | |
JP5424555B2 (ja) | 亜鉛金属表面の耐食性皮膜形成方法 | |
JP6158648B2 (ja) | クロムフリー化成処理液および化成処理方法 | |
JP5728740B2 (ja) | 化成皮膜の仕上げ剤及び仕上げ処理方法 | |
WO2023119827A1 (ja) | 化成処理液及び対象金属材料を化成処理する方法 | |
WO2023119826A1 (ja) | 化成処理液及び対象金属材料を化成処理する方法 | |
RU2409702C1 (ru) | Состав для химической обработки изделий из алюминия и его сплавов |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080025622.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10761555 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2010761555 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010761555 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20117023572 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |