WO2005085497A1 - 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 - Google Patents
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 Download PDFInfo
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- WO2005085497A1 WO2005085497A1 PCT/JP2005/003597 JP2005003597W WO2005085497A1 WO 2005085497 A1 WO2005085497 A1 WO 2005085497A1 JP 2005003597 W JP2005003597 W JP 2005003597W WO 2005085497 A1 WO2005085497 A1 WO 2005085497A1
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- trivalent
- trivalent chromate
- zinc
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- 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
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- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/17—Orthophosphates containing zinc cations containing also organic acids
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- 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
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- 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
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
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- 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
Definitions
- Trivalent chromate treatment solution for trivalent chromate treatment solution, trivalent chromate treatment solution and method for producing the same, and trivalent chromate film having reduced total friction coefficient and method for producing the same Trivalent chromate treatment solution for trivalent chromate treatment solution, trivalent chromate treatment solution and method for producing the same, and trivalent chromate film having reduced total friction coefficient and method for producing the same
- the present invention relates to a technique for reducing the total friction coefficient of a hexavalent chromium-free protective trivalent chromate film on a zinc or zinc alloy plating which requires a tightening property. More specifically, the present invention relates to a film total friction coefficient reducing agent for a trivalent chromate treatment solution, a trivalent chromate treatment solution for reducing the total friction coefficient in a trivalent chromate film, a method for producing the same, and a total friction The present invention relates to a trivalent chromate film having a reduced coefficient and a method for producing the same.
- a film having a corrosion resistance far higher than that of a conventional film containing hexavalent chromium as a main component in terms of heat corrosion resistance, a treatment liquid therefor, and a method for forming the same have been proposed (for example, see Patent Document 11). 3).
- the coating obtained in one process of trivalent chromate treatment generally has a higher overall friction coefficient than conventional hexavalent chromate coatings, and bolts and nuts that require tightening performance in the automotive industry and other industries For safety reasons, over-coating after trivalent chromate treatment is being used to address this problem.
- Patent Document 1 Patent No. 3332373
- Patent Document 2 Japanese Patent No. 3332374
- Patent Document 3 JP 2003-268562 A
- a film obtained by contacting a treatment solution mainly containing trivalent chromium that does not contain hexavalent chromium on a zinc or zinc alloy plating film is formed by a conventional chromate treatment mainly containing hexavalent chromium.
- An object of the present invention is to provide a film having the same friction resistance as that of the film, and a total friction coefficient equal to or lower than that of the conventional hexavalent chromate film.
- the above problem can be efficiently solved by performing a trivalent chromate treatment using a treatment solution containing a quinoline-based compound or a derivative thereof on zinc or a zinc alloy plating. It was made based on the findings of
- the present invention provides a film total friction coefficient reducing agent for a trivalent chromate treatment solution, which comprises a quinoline-based compound or a derivative thereof.
- the present invention also provides the use of a quinoline-based compound or a derivative thereof for reducing the overall friction coefficient of a trivalent chromate film.
- the present invention provides a method for producing a trivalent chromate treatment solution for forming a film having a reduced overall friction coefficient, comprising adding a quinoline compound or a derivative thereof to the trivalent chromate treatment solution.
- a method for producing a trivalent chromate treatment solution for forming a film having a reduced overall friction coefficient comprising adding a quinoline compound or a derivative thereof to the trivalent chromate treatment solution.
- the present invention provides a trivalent chromate-treated solution, which contains 0.1 to 25 gZL of a quinoline-based compound or a derivative thereof.
- the present invention provides a method for forming a trivalent chromate film, characterized by contacting zinc or zinc alloy plating with the treatment solution of the present invention.
- the present invention provides a trivalent chromate film characterized by containing a quinoline compound or a derivative thereof.
- a hexavalent chromium-free protective trivalent chromate film having a reduced overall friction coefficient on a zinc or zinc alloy coating can be produced. Coating obtained by this method thereby, in addition to the corrosion resistance of the zinc or zinc alloy plating itself, the excellent corrosion resistance of the trivalent chromate film is further provided.
- the overall coefficient of friction of the film is equal to or less than that of conventional hexavalent chromate, so it has secure tightening properties in the design of bolts and nuts. Furthermore, productivity can be maintained because the apparatus and process used in the conventional hexavalent chromate treatment can be used as they are.
- the total friction coefficient differs depending on the plating bath type (acidic bath such as sulfuric acid bath, Shii-Dang Ammon bath, potassium bath, and alkaline bath such as alkali cyanide bath and alkali cyanide bath). According to the present invention, it is possible to adjust the total friction coefficient to the same value even with different plating bath types. Can be expected to contribute.
- the plating bath type acidic bath such as sulfuric acid bath, Shii-Dang Ammon bath, potassium bath, and alkaline bath such as alkali cyanide bath and alkali cyanide bath.
- the film total friction coefficient reducing agent for a trivalent chromate treatment solution of the present invention contains a quinoline compound or a derivative thereof.
- the quinoline-based compound or a derivative thereof includes, for example, an acid having a monovalent or divalent substituent (having seven isomeric structures) from which a quinoline linker is derived, or a salt thereof (eg, sodium, potassium, ammonium). -Pum or the like).
- it is a water-soluble quinoline-based compound or a derivative thereof, and includes SOH, COOH, and OOH.
- quinolinesulfonic acid, quinaldic acid, quinophthalone, and quinolylacetic acid are preferable, and quinolinesulfonic acid is particularly preferable.
- the quinoline compounds or derivatives thereof can be used alone or in combination of two or more.
- the reducing agent of the present invention can also be used for a shifted trivalent chromate treatment solution.
- the amount of the reducing agent to be added to the trivalent chromate treatment solution is preferably such that the concentration of the quinoline compound or its derivative in the trivalent chromate treatment solution is 0.1 to 25 gZL. Preferably, the amount is 0.2 to 15 gZL.
- the trivalent chromate treatment solution include the following treatment solutions, and the concentration of the quinoline compound or its derivative in each treatment solution is preferably 0.1 to 25 gZL, and more preferably 0.1 to 25 gZL. 2—15gZL:
- Trivalent chromium ions and oxalate ions are contained in a molar ratio of 0.5 to 1.5,
- Trivalent chromium is present in the form of a water-soluble complex with oxalic acid
- the treatment solution wherein the cobalt ion forms a sparingly soluble metal salt with oxalic acid and does not precipitate, but is stably present in the trivalent chromate treatment solution,
- the zinc or zinc alloy plating When the zinc or zinc alloy plating is brought into contact with the treatment solution, it reacts with zinc to form a trivalent chromate film containing zinc, chromium, cobalt, oxalic acid, and a quinoline-based compound or a derivative thereof. Said treatment solution forming on the plating;
- An inorganic acid ion selected from the group consisting of chloride ion, nitrate ion, sulfate ion, phosphate ion and a combination thereof;
- Trivalent chromate treatment solution containing an organic acid that forms a water-soluble complex with trivalent chromium ion The substrate to be treated with the trivalent chromate treatment solution of the present invention includes various metals such as iron, nickel, copper, and the like. Metals and alloys, such as alloys or zinc-substituted aluminum, have various shapes such as plate-like objects, rectangular solids, cylinders, cylinders, and spherical objects. It is.
- the substrate is coated with zinc or a zinc alloy by a conventional method.
- any of an acidic bath such as a sulfuric acid bath, an ammonium bath, and a potassium bath, and an alkaline bath such as an alkali cyanide bath and an alkali cyanide bath may be used.
- the thickness of the zinc plating deposited on the substrate is arbitrarily set at a force of 1 ⁇ m or more, preferably 5 to 25 ⁇ m.
- Examples of zinc alloy plating include zinc-iron alloy plating, zinc-nickel alloy plating with a nickel deposition rate of 5 to 20% by mass, zinc-cobalt alloy plating, and tin-zinc alloy plating.
- the thickness of the zinc and zinc alloy coating deposited on the substrate can be arbitrarily set, but is preferably 1 ⁇ m or more, and more preferably 5 to 25 ⁇ m.
- any chromium compound containing trivalent chromium can be used as a source of trivalent chromium ions.
- Trivalent chromium salts such as chromium nitrate, chromium phosphate and chromium acetate can be used, or hexavalent chromium such as chromic acid and bichromate can be reduced to trivalent with a reducing agent.
- One or more of the above trivalent chromium sources can be used.
- the concentration of trivalent chromium in the treatment solution is preferably as low as possible from the viewpoint of wastewater treatment properties, but considering corrosion resistance, 0.2-lOgZL is preferred. Concentration. Use of trivalent chromium in this low concentration range in the present invention is advantageous in wastewater treatment and economically.
- oxalic acid one or more kinds of acids or salts thereof (for example, salts of sodium, potassium, ammonium, etc.) can be used.
- concentration of oxalic acid is preferably 0.2-3 gZL, more preferably 2-1 lgZL.
- any cobalt compound containing divalent cobalt can be used, but preferably, cobalt nitrate, cobalt sulfate and cobalt salt are used.
- the concentration of cobalt ions is 0.2-lOgZL, more preferably 0.5-8gZL.
- the amount of cobalt in the coating increases as the concentration of cobalt ions in the treatment solution increases, with a corresponding increase in corrosion resistance.
- the molar ratio of trivalent chromium to oxalic acid in the treatment solution is preferably from 0.5 to 1.5, more preferably from 0.8 to 1.3.
- the treatment solution (1) may contain a salt of an inorganic acid selected from the group consisting of nitric acid, sulfuric acid, hydrochloric acid and a combination thereof.
- concentration of the inorganic acid (hydrochloric acid, sulfuric acid, nitric acid) ions is preferably from 50 to 50 gZL, more preferably from 5 to 20 gZL.
- one or more selected from oxyacids of phosphorus such as phosphoric acid and phosphorous acid, and alkali salts thereof may be added. Its concentration is preferably between 0.1 and 50 g / L, more preferably between 0.5 and 20 g / L.
- polycarboxylic acids such as malonic acid, dicarboxylic acid of succinic acid, carboxylic acid such as citric acid, tartaric acid and malic acid, and tricarboxylic acid such as vallic acid may be further added.
- concentration is preferably 30 g / L!
- the pH of the treatment solution of the present invention is preferably 0.5-4. More preferably, it is 2-2.5.
- the inorganic acid ions may be used, or an alkali agent such as alkali hydroxide or aqueous ammonia may be used.
- trivalent chromium and oxalic acid are presumed to have a structure represented by the following general formula, and exist in the form of a stable water-soluble complex.
- Cobalt ions form poorly soluble metal salts with oxalic acid. It must be stable without precipitation.
- the cobalt ion reacts with free oxalic acid in the treatment solution to precipitate cobalt oxalate. Is generated.
- a chemical conversion film having good corrosion resistance cannot be obtained.
- n 6-2m / l
- the supply source of trivalent chromium ions is the same as the treatment solution (1).
- the concentration of trivalent chromium in the treatment solution is preferably as low as possible from the viewpoint of wastewater treatment, but in consideration of corrosion resistance, 0.2-10 g / L is preferred. This is the most preferred concentration. In the present invention, the use of trivalent chromium in this low concentration range is advantageous in wastewater treatment and economically.
- Sources of ions selected from the group consisting of A1, Si, Ti, Mn, Fe, Co, Ni, Zn, and combinations thereof include these sources. Any compound can be used. Inorganic acid salts such as nitrates, sulfates, and chlorides which are easily ionized in an aqueous solution are preferable.
- the concentration of these ions in the treatment solution is preferably 0.2-1 OgZL, more preferably 0.5-8 gZL. In particular, in order to improve the corrosion resistance, it is better to be 2. OgZL or more.
- the content of these ions in the coating increases as the concentration in the processing solution increases, and the corrosion resistance of the coating improves proportionally.
- the concentration of the inorganic acid ions selected from the group consisting of hydrochloric acid ions, nitrate ions, sulfate ions, phosphate ions and their combined power in the treatment solution is preferably 1 to 50 gZL, more preferably 5 to 20 gZL. It is.
- the pH of the treatment solution (2) of the present invention is preferably 0.5-4. It is more preferably 1 to 3.
- the inorganic acid ion may be used, or an alkali agent such as alkali hydroxide or aqueous ammonia may be used.
- an organic acid that forms a water-soluble complex with trivalent chromium ions is added to the treatment solution (2).
- the organic acid include carboxylic acids such as oxalic acid and salts thereof (eg, salts such as sodium, potassium, and ammonium). These organic acids may be used alone or in combination of two or more. Can be used.
- the concentration of the organic acid is preferably from 0.2 to 13 gZL, more preferably from 2 to 1 lgZL.
- the molar ratio of trivalent chromium to organic acid in the treatment solution is preferably 0.5-1.5, more preferably Is 0.8-1.3.
- the balance of the essential components in the treatment solution (1)-(3) of the present invention is water.
- a trivalent chromate film containing a quinoline-based compound or a derivative thereof can be formed on the zinc or zinc alloy plating.
- the concentration of the quinoline compound or its derivative in the trivalent chromate film is preferably 0.1 to 15 mgZdm 2 , more preferably 0.2 to 10 mgZdm.
- the zinc or zinc alloy plating As a method for bringing the zinc or zinc alloy plating into contact with the treatment solution of the present invention, it is common to immerse the zinc or zinc alloy plating in the treatment solution. For example, it is preferable to immerse for 5 to 600 seconds at a liquid temperature of 10 to 50 ° C, more preferably 20 to 40 ° C, and more preferably for 20 to 60 seconds.
- a force of immersing the object to be treated in a dilute nitric acid solution before the chromate treatment is usually used.
- a pretreatment may be used. It is not necessary to use it.
- a trivalent chromate treatment solution is prepared by further taking out a part of the treatment solution, adding the reducing agent of the present invention to the taken out treatment solution, and returning to the treatment solution. May be included.
- This step makes it easy to keep the concentration of the quinoline compound or its derivative in the treatment solution constant.
- the quinoline-based compound or its derivative is in the form of powder or oil, it is more advantageous than the method of directly adding the quinoline-based compound or its derivative to the treatment solution in the treatment tank in terms of solubility and homogenization. It is possible to replenish the quinoline-based compound and the like in the form of an aqueous solution, but the total amount of the treatment solution increases depending on the replenishment amount.
- Examples of a method for removing a part of the trivalent chromate treatment solution include a method of removing the solution as a processing tank power overflow liquid and a method of removing the solution using a processing tank power pump. It is preferable to filter when returning to the processing solution. Conditions and processing operations other than those described above can be performed according to the conventional chromate treatment method.
- M6 bolts (S45C material, strength class 8.8) and various zinc plating (zinkate bath (ttS3 ⁇ 4NZ-87, Dipsol Co., Ltd.), cyan bath (L 800, manufactured by Dipsol Co., Ltd.), An 8 m-thick piece of EZ-988) manufactured by Date Busole Co., Ltd. was immersed in a trivalent chromate treatment solution shown in Tables 1 and 2, and then washed with water.
- VOSO was used as the source.
- NiSO was used as the Ni source.
- NO 3 — HN as source
- M6 bolt (S45C material, strength class 8.8) is coated with alkali zinc nickel alloy (IZ-262 (Ni: 7%) manufactured by Dipsol Co., Ltd., IZ-252 (Ni: manufactured by Dipsol Co., Ltd.) 14%)) was applied to a thickness of 8 / zm, immersed in a trivalent chromate treatment solution shown in Table 3, and then washed with water.
- IZ-262 Na: 7%
- IZ-252 Ni: manufactured by Dipsol Co., Ltd.
- NiSO was used as the Ni source.
- NO 3 was used as a source
- M6 bolts S45C material, strength class 8.8 and various zinc plating (zincate bath (Dipsol Co., Ltd. ttS3 ⁇ 4NZ-87), cyan bath (Dipsol Co., Ltd. L 800), salt bath ( Hexavalent chromate treatment was applied to a product which had been subjected to 8 ⁇ m treatment with EZ-988) manufactured by Date Busole Co., Ltd. Hexavalent chromate used was Dipsol Co., Ltd. Z-493 (10 mL ZL, treatment condition: 30 ° C-40 seconds).
- M6 bolts S45C material, strength class 8.8 and various zinc plating (zincate bath (Dipsol Co., Ltd. ttS3 ⁇ 4NZ-87), cyan bath (Dipsol Co., Ltd. L 800), salt bath ( After applying 8 ⁇ m of EZ-988), manufactured by Date Busole Co., Ltd., trivalent chromate was applied with the following composition described in Example 7 of JP-A-2003-313675 (processing conditions: 30 ° C—30 seconds).
- M6 bolts S45C material, strength class 8.8 and various zinc plating (zincate bath (Dipsol Co., Ltd. ttS3 ⁇ 4NZ-87), cyan bath (Dipsol Co., Ltd. L 800), salt bath ( After applying 8 ⁇ m of EZ-988) manufactured by Date Busole Co., Ltd., trivalent chromate was applied with the following composition described in Example 2 of JP-A-2000-509434 (the processing conditions were 30 ° C—40 seconds).
- M6 bolt (S45C material, strength class 8.8) coated with alkali zinc nickel alloy (IZ-262 (Ni: 7%) manufactured by Dip Sole Co., Ltd.) to a thickness of 8 ⁇ m and hexavalent Chromate treatment was performed.
- Hexavalent chromate used was IZ-268 (30 mL ZL, manufactured by Dipsol Co., Ltd., treatment conditions: 30 ° C.-30 seconds).
- M6 bolt (S45C material, strength class 8.8) coated with alkali zinc nickel alloy (IZ-252 (Ni: 14%) manufactured by Dip Sole Co., Ltd.) to a thickness of 8 ⁇ m and hexavalent Chromate treatment was performed.
- Hexavalent chromate used was IZ-258 (S: 200 mL ZL, E: 10 g / L, treatment conditions: 30 ° C-40 seconds) manufactured by Dipsol Co., Ltd.
- Tables 4 and 5 show the results of the salt spray test (JIS-Z-2371) of the chromate films obtained in Example 122 and Comparative Example 114.
- the overflow solution was transferred to a preliminary tank.
- the pumping speed was 800 LZhr.
- quinaldic acid was added so that the concentration in the treatment solution in the preliminary tank was 8 gZL, and the solution was returned to the treatment tank through a filter (Kizine clay K05). Reduce the concentration of quinaldic acid in the treatment solution in the treatment tank. could be kept constant.
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200580014275XA CN1950544B (zh) | 2004-03-03 | 2005-03-03 | 用于降低三价铬酸盐处理溶液的转化膜总摩擦系数的试剂,三价铬酸盐处理溶液和其制备方法,以及总摩擦系数降低的三价铬酸盐转化膜和其制备方法 |
EP05719901A EP1734152A4 (en) | 2004-03-03 | 2005-03-03 | AGENT FOR REDUCING THE GENERAL FRICTION COEFFICIENT OF THE PROTECTIVE FILM FOR A TRIVALENT CHROMATE PROCESSING SOLUTION, TRIVALENT CHROMATE PROCESSING SOLUTION AND METHOD OF PRODUCING THE SAME AND REDUCTION OF THE TRIVALENT CHROMATE PROTECTION FILM IN THE FRICTION COEFFICIENT |
US11/514,505 US20070023104A1 (en) | 2004-03-03 | 2006-09-01 | Agent for reducing conversion film overall friction coefficient for trivalent chromate treating solution, trivalent chromate treating solution and method for production thereof, and trivalent chromate conversion film reduced in overall friction coefficient and method for production thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-058857 | 2004-03-03 | ||
JP2004058857A JP4446233B2 (ja) | 2004-03-03 | 2004-03-03 | 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 |
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US11/514,505 Continuation US20070023104A1 (en) | 2004-03-03 | 2006-09-01 | Agent for reducing conversion film overall friction coefficient for trivalent chromate treating solution, trivalent chromate treating solution and method for production thereof, and trivalent chromate conversion film reduced in overall friction coefficient and method for production thereof |
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WO2005085497A1 true WO2005085497A1 (ja) | 2005-09-15 |
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PCT/JP2005/003597 WO2005085497A1 (ja) | 2004-03-03 | 2005-03-03 | 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 |
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US (1) | US20070023104A1 (ja) |
EP (1) | EP1734152A4 (ja) |
JP (1) | JP4446233B2 (ja) |
KR (1) | KR100799845B1 (ja) |
CN (1) | CN1950544B (ja) |
WO (1) | WO2005085497A1 (ja) |
Cited By (1)
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- 2005-03-03 KR KR1020067018882A patent/KR100799845B1/ko not_active IP Right Cessation
- 2005-03-03 CN CN200580014275XA patent/CN1950544B/zh not_active Expired - Fee Related
- 2005-03-03 WO PCT/JP2005/003597 patent/WO2005085497A1/ja active Application Filing
- 2005-03-03 EP EP05719901A patent/EP1734152A4/en not_active Withdrawn
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009020097A1 (ja) * | 2007-08-03 | 2009-02-12 | Dipsol Chemicals Co., Ltd. | 3価クロム耐食性化成皮膜及び3価クロム化成処理溶液 |
CN101815809A (zh) * | 2007-08-03 | 2010-08-25 | 迪普索尔化学株式会社 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
JPWO2009020097A1 (ja) * | 2007-08-03 | 2010-11-04 | ディップソール株式会社 | 3価クロム耐食性化成皮膜及び3価クロム化成処理溶液 |
CN102268667A (zh) * | 2007-08-03 | 2011-12-07 | 迪普索尔化学株式会社 | 3价铬耐腐蚀性化学转化膜及3价铬化学转化处理溶液 |
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Also Published As
Publication number | Publication date |
---|---|
EP1734152A4 (en) | 2011-03-02 |
JP2005248233A (ja) | 2005-09-15 |
KR100799845B1 (ko) | 2008-01-31 |
US20070023104A1 (en) | 2007-02-01 |
CN1950544A (zh) | 2007-04-18 |
EP1734152A1 (en) | 2006-12-20 |
KR20060123628A (ko) | 2006-12-01 |
CN1950544B (zh) | 2011-12-21 |
JP4446233B2 (ja) | 2010-04-07 |
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