WO2001083849A1 - Procede de fabrication d'element en magnesium et/ou alliage de magnesium - Google Patents
Procede de fabrication d'element en magnesium et/ou alliage de magnesium Download PDFInfo
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- WO2001083849A1 WO2001083849A1 PCT/JP2001/003676 JP0103676W WO0183849A1 WO 2001083849 A1 WO2001083849 A1 WO 2001083849A1 JP 0103676 W JP0103676 W JP 0103676W WO 0183849 A1 WO0183849 A1 WO 0183849A1
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- magnesium
- agent
- acid
- phosphate
- treated
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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
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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
- C23C22/68—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 solutions with pH between 6 and 8
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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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
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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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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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
- 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
Definitions
- the present invention relates to a method for manufacturing magnesium and Z or magnesium alloy parts.
- Magnesium is the lightest among metals for practical structural materials, and has high specific strength and is easy to machine, so it is widely used in automobile parts, electrical products such as computers and audio equipment, and aircraft parts.
- molded products of magnesium and magnesium alloys are mainly manufactured by die casting, extrusion, or rolling.
- the so-called thixomolding method using an injection molding machine has been technically established. As a result, it is possible to improve the shape freedom and physical properties of molded products, and the range of applications has been further expanded.
- the general process from molding to die casting and thixomolding to commercialization of magnesium alloy parts is as follows.
- Mechanical treatment process Deburring, strong oxide, lubricant for extrusion, release agent, removal of sand and general waste, removal of surface roughness, etc.
- Abrasive belt, abrasive paper, brush polishing, burring Polishing process such as polishing, puffing, blasting, etc.
- Solvent degreasing Preliminary degreasing cleaning using a petroleum, aromatic, hydrocarbon, or chlorine-based solvent to remove cutting oil and grease.
- Alkaline degreasing Degreasing cleaning using alkaline solutions such as caustic soda to remove general filth, burnt graphite lubricant, cutting agents, and the like.
- Emulsion degreasing washing to emulsify and remove dirt on the metal surface.
- Acid cleaning process Removal of oxide film, corrosion products, baked lubricant, embedded abrasive, shot, lime sand, and other contaminants that are not removed in the degreasing process, activation of molded product surface, segregation layer A cleaning step using a single or mixed solution of hydrofluoric acid, nitric acid, sulfuric acid, phosphoric acid, chromic acid, etc.
- Chromic acid treatment step A step of applying a chromate-based treatment agent to apply a rechromate coating to the surface of the molded product to impart corrosion resistance.
- Washing step alkali washing and water washing for removing the chromate film.
- a chromate treatment is generally performed (for example, Japanese Patent Publication No. 61-179911).
- a simpler server control method has been desired.
- the chromate treatment has the disadvantage of discoloring the surface and losing metallic luster.
- the use of chromium-based compounds has been restricted or abolished.
- An object of the present invention is to provide excellent corrosion resistance, paint adhesion, and electromagnetic wave shielding properties.
- Magnesium and / or magnesium alloy parts are treated with (A) a phosphate-containing surface treatment agent, and then (B) a treatment with a metal oxide pretreatment agent.
- Manufacturing method of magnesium and / or magnesium alloy parts, (2) magnesium and / or magnesium alloy parts are treated with (A) a phosphate-containing surface treatment agent, and (B) And (D) a method for producing a treated magnesium and / or magnesium alloy part, which is then treated with a magnesium protective agent,
- Magnesium and / or magnesium alloy parts are treated with (A) a phosphate-containing surface treatment agent, (B) a pretreatment agent, and (C) an aromatic carboxylic acid. Or a component made of treated magnesium and Z or magnesium alloy, wherein the component is treated with a detergent containing at least one selected from salts thereof and a surfactant, and further treated with (D) a magnesium protective agent.
- a treating agent containing at least one selected from aromatic carboxylic acids or salts thereof, or at least one selected from pyrazole compounds or triazole compounds is used.
- the present invention provides a method of (1) deburring a magnesium and / or magnesium alloy component if necessary, (2) treating with a surface treatment agent containing phosphate, and (3) treating with a pretreatment agent for preventing corrosion.
- Magnesium and Z or magnesium or magnesium alloy characterized by being treated with magnesium-proofing agent, (5) dried, (6) painted or plated, and (7) assembled.
- the present invention relates to a method for manufacturing parts.
- the present inventors have studied various alternatives to the chromate treatment agent. During the study, it was found that one of the factors contributing to the improvement of corrosion resistance, paint adhesion, and electromagnetic wave shielding properties was in the treatment before the prevention treatment.
- the present inventors have disclosed that at least one selected from phosphates, aromatic carboxylic acids and salts thereof, which is useful for molded articles of magnesium and Z or a magnesium alloy.
- a surface treatment agent containing is proposed.
- the present inventors have made intensive studies using the surface treating agent to further improve the anti-dust effect, coating adhesion and electromagnetic wave shielding properties.
- the surface treatment agent used in the present invention contains a phosphate.
- Examples of the phosphate include an ammonium salt of orthophosphoric acid and a condensed phosphoric acid, and an alkanolamine salt.
- Examples of the condensed phosphoric acid include metaphosphoric acid and polyphosphoric acid.
- Metaphosphoric acid For example, trimetaphosphoric acid, tetramethoric acid and the like can be exemplified.
- Examples of polyphosphoric acid include pyrophosphoric acid, triphosphoric acid, and tetraphosphoric acid.
- ammonium primary phosphate ammonium secondary phosphate, ammonium tertiary phosphate, monoethanolamine phosphate, diethanolamine phosphate, triethanolamine phosphate, isopropanolamine phosphate, trimetaline
- ammonium ammonium salt ammonium tetraphosphate, ethanolamine tetraphosphate, ammonium triphosphate, and ammonium tetraphosphate.
- These phosphates can be used alone or in combination of two or more.
- ammonium salts of phosphoric acids and alkanolamine salts are preferable because they have an appropriate etching effect and generate less smut after washing, and more preferably have high safety and are easy to treat wastewater.
- condensed ammonium phosphate is particularly preferred because it can easily etch the surface of magnesium and / or magnesium alloys and prevent excessive etching.
- the condensed ammonium phosphate is known, and is obtained, for example, by heating and condensing orthophosphoric acid (normal phosphoric acid) and urea. In this case, the molar ratio of orthophosphoric acid to urea is reduced.
- Orthophosphoric acid: urea is preferably performed under the condition of 1: 0.5-1: 5.
- the surface treatment agent may contain unreacted raw materials in the reaction product, that is, orthophosphoric acid and urea, and can be used without any problem in the effects of the present invention.
- the concentration of the phosphate is usually about 0.1 to 90% by weight, preferably 0.5 to 50% by weight. If the concentration exceeds 50% by weight, the surface of the magnesium after washing becomes black, while if the concentration is less than 0.5% by weight, Etching tends to be insufficient, and the degreasing effect tends to be insufficient. However, even if the concentration of phosphate is less than about 0.5% by weight and the etching is relatively insufficient or the degreasing effect is insufficient, the treatment with the pretreatment agent in the next step will result in this. Defects are supplemented. Further, even when the magnesium surface is blackened due to the phosphate concentration being higher than about 50% by weight, the problem is solved by performing the treatment with the pretreatment agent in the next step.
- a surface treating agent having such a wide range of phosphate concentration can be used, and the use of such a low concentration of phosphate is advantageous in terms of cost and is more mild.
- the surface treatment can be performed, the surface can be made denser, and the treatment state can be easily controlled.
- the treatment time is shortened when a high concentration of phosphate as described above is used.
- it has the advantage that it can be expected to improve the effects on later corrosion resistance, coating adhesion, and electromagnetic wave shielding.
- the surface treatment agent a mixture of the above phosphate and at least one selected from aromatic carboxylic acids or salts thereof, or at least one selected from pyrazole-based compounds or triazole-based compounds is used. Can also be used.
- Len ring position 1 can be preferably used a compound obtained by replacing the R 2, R 3, R 4 , R 5, R 6, R 7 at an arbitrary position of R 8, 2 ⁇ 7-position to the 8-position R.
- R 1 is a carboxyl group, a carboxymethyl group or a carboxyvinyl group
- R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are the same or different and are a hydrogen atom, an alkyl group, a nitro group
- R 8 represents a hydrogen atom, a carboxy group, a propyloxymethyl group or a propyloxyvinyl group.
- aromatic carboxylic acids include benzoic acid, cumic acid, o-cumic acid, m-cumic acid, p-tert-butylbenzoic acid, m-toluic acid, o-toluic acid, p-toluyl Acid, hydroxytoluic acid, mononitrobenzoic acid, dinittobenzoic acid, nitrotoluic acid, nitrophthalic acid, chloromethylbenzoic acid, paranitrophenylacetic acid, nitrocinnamic acid, naphthoic acid, 2-hydroxynaphthoic acid, naphthalic acid, etc. Can be illustrated.
- salts with various organic bases and inorganic bases can be used.
- organic base include alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, and methylamine, ethylamine, cyclohexylamine and the like.
- Aliphatic amines 1, 3-bi (Aminomethyl) cyclohexane (1,3-BAMCH), aliphatic diamines such as ethylenediamine, TMAH (tetramethylammonium hydroxide), tetraethylammonium hydroxide, tetramethylammonium nitrate Ammonium salt, DBU (1,8-diazabicyclo [5.4.0] —7-indene), DBN (1,5-diazabicyclo [4.3.0] —5-nonene), 1-aminopyrrolidine And cyclic amines such as morpholine.
- TMAH tetramethylammonium hydroxide
- DBU 1,8-diazabicyclo [5.4.0] —7-indene
- DBN 1,5-diazabicy
- the inorganic base include alkali metal hydroxides such as ammonia, hydrazine, sodium hydroxide, and potassium hydroxide. These salts can be used alone or in combination of two or more. These salts are more preferable because they have excellent solubility in water and have excellent gas barrier properties as compared with the case where the aromatic carboxylic acid is used without being converted into a salt.
- organic amine salts such as alkanolamines and aliphatic diamines, ammonia salts, and hydrazine salts do not cause crystalline substances to adhere to the surface of the object to be treated after treatment and provide good surface properties. This is particularly preferred.
- aromatic carboxylic acids and salts thereof include cumic acid, o-cumic acid, m-cumic acid, p-tert-butylbenzoic acid, m-toluic acid, o-toluic acid and Alkanolamine salts of p-toluic acid may be mentioned.
- a pyrazole compound or a triazole compound together with the aromatic carboxylic acid from the viewpoint of improving the protection performance.
- the pyrazole-based compound include pyrazole, 3,5-dimethylpyrazole, 3-methyl-5-hydroxypyrazol, and 4-aminopyrazole.
- the lyazole compounds include triazole compounds such as 1,2,3-triazole, 1,2,4-triazole and benzotriazole, and C, C in any position of these triazole compounds.
- -C S alkyl group, a mercapto group, Bok rear hydroxyl group is replaced A sol derivative can be exemplified.
- triazole compounds include 1,2,3-triazole, 1,2,4-triazole, 3-mercapto-1,2,4-triazole, 3-hydroxy1,2,4-triazole, 3 —Methyl-1,2,4-triazole, 1-methyl-1,2,4-triazole, 1-methyl-3 _mercapto-1,2,4_triazole, 4-methyl-1,2,3-triazole, benzotriazole, Examples thereof include 1-hydroxybenzotriazole. Among them, 1,2,3-triazole, 1,2,4-triazole, benzotriazole, 3-mercapto-1,2,4-triazole and 3-hydroxy-1,2,4-triazole are exemplified. Preferred are 1,2,3-triazole, 1,2,4-triazole and 3-mercapto-1,2,4-triazole. These virazole compounds or triazole compounds can be used alone or in combination of two or more.
- Examples of the pretreatment agent of the present invention include alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, methylamine, ethylamine, and cycloalkanol.
- alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, methylamine, ethylamine, and cycloalkanol.
- Aliphatic amines such as hexylamine, 1,3-BA MCH, aliphatic diamines such as ethylenediamine, ammonium salts such as TMAH, tetraethylammonium hydroxide, tetramethylammonium nitrate, DBU, DBN, Cyclic amines such as 1-aminopyrrolidine and morpholine, alkali metal hydroxides such as ammonia, hydrazine, sodium hydroxide and potassium hydroxide, sodium orthosilicate, potassium orthosilicate, sodium metasilicate and potassium metasilicate Silica Examples thereof include alkali metal salts of acids.
- One of these protective pretreatment agents can be used alone, or two or more of them can be used simultaneously.
- alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, and ammonium salts such as TMAH are particularly preferred.
- concentration of the pretreatment agent is preferably about 1 to 50% by weight, more preferably about 5 to 35% by weight.
- the pretreatment agent is a treatment agent used before the treatment with the protection agent, such as a method of spraying or applying with a spray or an all-roller, or a method of immersing these in a treatment liquid. Can be processed.
- magnesium protective agent of the present invention examples include chromic acid, dichromate, manganese phosphate, potassium permanganate, modified chromic acid, ferric nitrate, stannic acid, zirconium phosphate, stannous chloride and stannic chloride.
- the magnesium and Z or magnesium alloy containing at least one selected from aromatic carboxylic acids and salts thereof proposed by the inventors in PC TZ JPOO / 001 19 can be used. From the viewpoint of mouth mat, magnesium and / or magnesium containing at least one selected from manganese phosphate, potassium permanganate, ferric nitrate, stannic acid, zirconium phosphate, stannous chloride and aromatic carboxylic acids and salts thereof.
- a magnesium alloy protective agent it is preferable to treat with a magnesium alloy protective agent.
- aromatic ruponic acid and its salts the concentration thereof can be set as appropriate, but is usually about 0.01 to 30% by weight, preferably about 0.1 to 10% by weight in total. It is good to do.
- at least one selected from the aforementioned pyrazole compounds and triazole compounds can be used in combination.
- the concentration in the treating agent is about 0.01 to 30% by weight, preferably about 0.1 to 10% by weight.
- a cleaning agent containing at least one selected from the above-mentioned aromatic carboxylic acids or salts thereof and a surfactant can be used.
- at least one selected from the above-mentioned pyrazole-based compounds or triazole-based compounds can be used in combination for the detergent.
- known surfactants can be used.
- nonionic and amphoteric surfactants can be preferably used, and anionic and cationic surfactants can also be used.
- the nonionic surfactant is not particularly limited, and specifically includes, for example, polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether and polyoxyethylene higher alcohol ether, and polyoxyethylene octyl phenyl ether and the like.
- Polyoxyethylene glycol fatty acid esters such as polyoxyethylene alkyl phenyl ethers, polyoxyethylene monostearate, sorbitan fatty acid esters such as sorbitan monolaurate, polyoxyethylene sorbitan monolaurate, and glycol monostearate Dalicol fatty acid esters, fatty acid monoglycerides and the like.
- polyoxyethylene alkyl ethers and polyoxyethylene alkylphenols are preferable, and those having an HLB value of 13 to 15 are particularly preferable.
- amphoteric surfactant No particular limitation is imposed on the amphoteric surfactant, and specific examples thereof include amino / 3-aminopropionic acids, aminocarboxylic acids such as alkyl-iminodipropionic acids, / 3-aminopyrionic acid, and trimethyldaricin. And betaines, of which i3-aminopropionic acid and betaine are preferred.
- the anionic surfactant is not particularly limited, and specifically includes, for example, a fatty acid salt, an alkyl sulfate salt, an alkyl sulfonate, an alkyl aryl sulfonate, an alkyl naphthylene sulfonate, an alkyl sulfosuccinate, Examples thereof include alkyl diphenyl ether disulfonate, alkyl phosphate, polyoxyethylene alkyl sulfate, sulfosuccinate, and the like. Among them, fatty acid salt, alkyl sulfosuccinate and the like are preferable.
- aliphatic amine halides examples thereof include aliphatic amine halides, alkylpyridinium halides, and quaternary ammonium salts. Among them, aliphatic amine halides and quaternary ammonium salts are preferred. ⁇
- the above surfactants may be used alone or as a mixture of two or more.
- the amount of the surfactant is usually about 0.01 to 50% by weight, preferably about 0.01 to 10% by weight, based on the total amount of the composition.
- the surface treatment agent, pre-treatment agent, cleaning agent and protection agent used in the present invention can be used as it is or in a form dissolved in a suitable solvent, and especially in the form of an aqueous solution. Is preferred.
- the concentration of aromatic ruponic acid and its salts in the surface treatment agent and the cleaning agent can be set as appropriate, but is usually about 0.01 to 30% by weight in total, preferably 0.1 to 10% by weight. %.
- the concentration in the treatment agent is about 0.1 to 30% by weight, preferably 0.1 to 10% by weight.
- a ratio of 1:10 can be exemplified. The higher the content of these compounds, the more the effect of preventing corrosion can be expected. However, if the content exceeds 30% by weight, the coating adhesion tends to deteriorate.
- additives such as a surfactant, a chelating agent, and an antifoaming agent can be used as needed in the surface treatment agent, the pretreatment agent, the cleaning agent, and the antioxidant.
- the surface treatment agent, pre-treatment agent, cleaning agent and protection agent used in the present invention can be used as they are, but they can be optionally diluted or concentrated.
- a spray or a roll coater is applied to the activated surface of a molded product obtained by molding the surface treating agent, the anti-oxidant pre-treatment agent, the cleaning agent and the anti-oxidant used in the present invention by a thixomolding method or a die casting method. Spraying or applying using, etc. These can be adopted for a method of treating by dipping or the like.
- magnesium or magnesium alloy as a material to which the surface treatment agent used in the present invention can be applied, and it can be widely applied to magnesium alone, an alloy composed of magnesium and another metal, a composite material, and the like.
- other metals include one or more selected from aluminum, zinc, manganese, iron, nickel, copper, lead, tin, and calcium.
- An acid-washing step may be added between the treatment with the surface treatment agent and the treatment with the pretreatment agent.
- the chemicals used in the pickling process include those conventionally used for pickling magnesium alloys. Specifically, nitric acid monosulfate, phosphoric acid, sulfuric acid, chromic acid mononitrate-hydrofluoric acid, chromic acid And aqueous solutions of ferric nitrate, hydrofluoric acid, nitric acid, sodium acetate mononitrate, sodium chromate mononitrate, and sodium chromate sulfate.
- a mechanical treatment or a degreasing treatment step may be performed on a molded product produced by a die casting method or a thixomolding method.
- Mechanical treatments include deburring, removal of various dirt, and various polishing processes.
- Barrel polishing which is a type of polishing process, also includes, for example, magnetic barrel polishing, which reduces surface irregularities and reduces the defect rate even for thin coatings, such as for mobile phones. Can be.
- the degreasing process includes solvent degreasing, alkali degreasing, and emulsion degreasing, and one or more of these steps may be combined.
- a processing tank equipped with an ultrasonic transmitter must be used. Can be. By performing processing under such ultrasonic waves, the processing time can be reduced, and when processing in large quantities, the uniformity of corrosion resistance, coating adhesion, and electromagnetic wave shielding properties (stable Sex) is obtained.
- a water washing step can be added. This washing can be carried out with a solution containing a suitable protective agent. After such washing with water or washing with a solution containing a suitable protective agent, drying is preferably performed.
- antioxidant (1) 100 parts of a 55% by weight aqueous solution of condensed ammonium phosphate was diluted 2.5 times to obtain a surface treating agent (5).
- Reference Example 6 Preparation of antioxidant (1) '1.5 parts of m-toluic acid, 1.5 parts of 3-mercapto-1,2,4-triazole 1.5 parts 1.5 parts of isopropanolamine were added to deionized water. This was dissolved to obtain 100 parts of the protective agent (1).
- a mold release agent (Caster Ace 225, manufactured by Nippon America Co., Ltd.) is applied to the mold, and a magnesium alloy AZ91D (containing 90% magnesium, 9% aluminum, and 1% zinc) is a die-casting machine (manufactured by Toshiba).
- a plate-like molded product (10 X 15 X 0.2 cm) was used. The same applies to the following embodiments. '
- the plate-shaped molded product was immersed in the surface treatment agent (1) prepared in Reference Example 1 at 40 ° C for 10 minutes, washed with deionized water for 1 minute, and then treated with 10% (w / v) ) Hydroxylation It was immersed in an aqueous potassium solution at 60 ° C for 15 minutes, and washed with deionized water for 1 minute (hereinafter, this operation is referred to as step 1).
- the obtained plate-shaped molded product was immersed in the cleaning agent (1) prepared in Reference Example 9 at 50 ° (:, 15 minutes, washed with water, and washed with Reference Example 6
- the test piece 2 was immersed in the antibacterial agent (1) prepared in the above at room temperature for 1 minute and dried to obtain a test piece 2.
- Specimen 1 obtained in Example 1 was immersed in the protective agent (1) prepared in Reference Example 1 at room temperature for 1 minute and dried to obtain Specimen 3.
- the plate-shaped molded product was immersed in the surface treatment agent (1) prepared in Reference Example 1 at 40 ° C for 10 minutes, washed with deionized water for 1 minute, and then immersed in 5% (w / v) phosphoric acid at room temperature. After immersion for 5 minutes, washing for 1 minute, immersion in 10% (w / v) potassium hydroxide aqueous solution as anti-protective agent at 60 ° C for 15 minutes and washing with deionized water for 1 minute ( Hereinafter, this operation is referred to as step 2.) Subsequently, it was treated with manganese, washed with water, and dried to obtain a test piece 4.
- step 2 this operation was treated with manganese, washed with water, and dried to obtain a test piece 4.
- the obtained plate-shaped molded product was immersed in the cleaning agent (1) prepared in Reference Example 9 at 50 ° (for 15 minutes, washed with water, and washed with Reference Example 6).
- test piece 5 was immersed in (1) at room temperature for 1 minute and dried.
- Example 7 The test piece 4 obtained in Example 4 was immersed in the protective agent (1) prepared in Reference Example 1 for 1 minute at room temperature and dried to obtain a test piece 6.
- Example 7 The test piece 4 obtained in Example 4 was immersed in the protective agent (1) prepared in Reference Example 1 for 1 minute at room temperature and dried to obtain a test piece 6.
- the plate-like molded product was immersed in a 5% (w / v) aqueous solution of sodium hydrogen phosphate at 50 to 70 ° C for 5 minutes, washed with water for 1 minute, and treated with the surface treatment agent (1) prepared in Reference Example 1 for 40 minutes. After immersion in a 10% (w / v) potassium hydroxide aqueous solution as a pre-treatment agent for protection at 60 ° (15 minutes, immersion in deionized water (Hereinafter, this operation is referred to as Step 3.) Subsequently, the sample was treated with manganese, washed with water, and dried to obtain a test piece 7.
- the obtained plate-shaped molded product was immersed in the detergent (1) prepared in Reference Example 9 at 50 ° (, 15 minutes), washed with water, and washed in Reference Example 6.
- the test piece 8 was obtained by immersing in the prepared protective agent (1) at room temperature for 1 minute and drying.
- test piece 7 obtained in Example 7 was immersed in the basin inhibitor (1) prepared in Reference Example 1 at room temperature for 1 minute and dried to obtain a test piece 9.
- the plate-shaped molded product was immersed in the surface treatment agent (2) prepared in Reference Example 2 at 40 ° C for 1 minute under ultrasonic wave, washed with deionized water for 1 minute, and then treated with 10% (w / v) It was immersed in an aqueous solution of potassium hydroxide at 60 ° C. for 5 minutes under ultrasonic wave generation, and washed with deionized water for 1 minute. Subsequently, the specimen was immersed in the anti-oxidant (2) prepared in Reference Example 7 at 40 ° C. for 1 minute under ultrasonic wave and dried to obtain a test piece 10.
- the ultrasonic wave was generated using an ultrasonic cleaner [C-6356 N type, manufactured by Riki Ijo Co., Ltd., oscillator 26 kHz, 600 W]. The same applies hereinafter.
- the plate-shaped molded product was immersed in the surface treating agent (3) prepared in Reference Example 3 at 40 ° (30 minutes) under ultrasonic wave generation, washed with deionized water for 1 minute, and then 10% (w / v) water Oxidizing power
- the sample was immersed in an aqueous solution at 60 ° C for 5 minutes under ultrasonic waves, and washed with deionized water for 1 minute. Subsequently, it was immersed in the antioxidant (2) prepared in Reference Example 1 at 40 ° C for 1 minute under ultrasonic waves and dried to obtain a test piece 11.
- the plate-shaped molded product was immersed in the surface treatment agent (4) prepared in Reference Example 4 at 40 ° C for 1 minute under ultrasonic wave, washed with deionized water for 1 minute, and then 10% (w / v) hydroxylated It was immersed in an aqueous potassium solution at 60 ° C for 5 minutes under ultrasonic waves, and washed for 1 minute with deionized water. Subsequently, the test piece 12 was obtained by immersing the antioxidant (2) prepared in Reference Example 7 under ultrasonic waves at 40 for 1 minute and drying.
- the plate-shaped molded product was immersed in the surface treatment agent (5) prepared in Reference Example 5 under ultrasonic wave at 40 ° C for 1 minute, washed with deionized water for 1 minute, and then treated with 10% (w Zv)
- the plate was immersed in an aqueous solution of potassium hydroxide at 60 ° C. for 10 minutes while generating ultrasonic waves, and washed with deionized water for 1 minute.
- the obtained plate-shaped molded product was immersed in the cleaning agent (1) prepared in Reference Example 9 at 50 ° C. for 5 minutes under ultrasonic wave, washed with water, and washed with water.
- test piece 13 The specimen was immersed in (2) at 40 ° (:, 1 minute and dried) to obtain a test piece 13.
- a test piece 14 was obtained in the same manner as in Example 13, except that (3) was used.
- Example 13 Same as Example 13 except that 25% (w / v) tetramethylammonium hydroxide was used in place of the 10% (w / v) aqueous potassium hydroxide solution as a pretreatment for mackerel prevention
- the test piece 15 was obtained.
- the plate-shaped molded product is placed in a 5% (w / v) aqueous solution of sodium hydrogen phosphate at 50 to 70 ° (:, After immersion for 5 minutes and rinsing for 1 minute, it was immersed in a 10% (w / v) aqueous solution of potassium hydroxide at 60 ° C. for 15 minutes and rinsed for 1 minute. Subsequently, it was treated with manganese, washed with water, and dried to obtain Comparative Test Specimen 1.
- the plate-like molded product was immersed in the surface treating agent (1) prepared in Reference Example 1 at 40 ° C. for 10 minutes, and was then washed with deionized water for 1 minute. Subsequently, the sample was treated with manganese, washed with water, and dried to obtain Comparative Test Specimen 2.
- the plate-shaped molded product was immersed in a 10% (w / v) aqueous potassium hydroxide solution at 60 ° C for 15 minutes, washed with deionized water for 1 minute, and then washed with the detergent (1) prepared in Reference Example 9. Soaked at 50 ° C for 15 minutes. After washing with water, immerse in the surface treatment agent (1) prepared in Reference Example 10 at 40 ° C for 10 minutes, wash with deionized water for 1 minute, and add the anti-oxidant (1) prepared in Reference Example 6 at room temperature. It was immersed for 1 minute and dried to obtain Comparative Test Specimen 3.
- the plate-shaped molded product was immersed in the surface treatment agent (2) prepared in Reference Example 2 at 40 ° C for 1 minute under ultrasonic wave, washed with deionized water for 1 minute, and then the anti-oxidant prepared in Reference Example 7 (2) was immersed in ultrasonic waves at 40 ° C. for 1 minute and dried to obtain Comparative Test Specimen 4.
- the plate-like molded product was immersed in a 10% (w / v) aqueous solution of potassium hydroxide at 60 ° for 5 minutes under ultrasonic waves, and washed for 1 minute with deionized water.
- the sample was immersed in the agent (2) at 40 ° (:) for 1 minute under ultrasonic wave and dried to obtain Comparative Test Specimen 5.
- Comparative Example 6 Comparative Example 6
- Each test piece prepared in Examples 1 to 15 and Comparative Examples 1 to 6 was sprayed with 5% (w / v) saline at 35 ° C. for 8 hours, and the condition of the birth control was confirmed.
- test pieces were evaluated as “ ⁇ ⁇ ⁇ ” when the test piece surface area was less than 0 to 3%, “ ⁇ ” when the test piece area was less than 3 to 11%, and “X” when the test piece area was 11% or more.
- Example 2 Each of the test pieces obtained in Example 2 or 10 to 13 was coated with a metallic satin powder coating using a coating machine (manufactured by Nippon Parkerizing Co., Ltd.) and baked (at 200 ° C for 15 minutes). A cross-cut test was performed on each test piece. Table 2 shows the results. [Table 2]
- test pieces 2 and 10 were cross-cut, and sprayed with a 5% aqueous sodium chloride solution at 35 ° C for 120 hours continuously.
- the adhesive tape (width 18 mm) was completely adhered along the cut, and then instantaneously peeled off, and the peeling state of the coating film was measured.
- the component made from magnesium and / or a magnesium alloy excellent in corrosion resistance, coating adhesiveness, and electromagnetic wave shielding property can be manufactured.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/257,164 US6787192B2 (en) | 2000-04-27 | 2001-04-27 | Process for producing part made of magnesium and/or magnesium alloy |
AU52624/01A AU5262401A (en) | 2000-04-27 | 2001-04-27 | Process for producing part made of magnesium and/or magnesium alloy |
EP01926004A EP1277853A4 (en) | 2000-04-27 | 2001-04-27 | PROCESS FOR MANUFACTURING MAGNESIUM ELEMENT AND / OR MAGNESIUM ALLOY |
CA002404650A CA2404650A1 (en) | 2000-04-27 | 2001-04-27 | Process for producing part made of magnesium and/or magnesium alloy |
TW092131945A TWI271445B (en) | 2001-04-27 | 2003-11-14 | Rust preventive for magnesium and/or magnesium alloy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000127517 | 2000-04-27 | ||
JP2000-127517 | 2000-04-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001083849A1 true WO2001083849A1 (fr) | 2001-11-08 |
Family
ID=18637103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/003676 WO2001083849A1 (fr) | 2000-04-27 | 2001-04-27 | Procede de fabrication d'element en magnesium et/ou alliage de magnesium |
Country Status (9)
Country | Link |
---|---|
US (1) | US6787192B2 (ja) |
EP (1) | EP1277853A4 (ja) |
KR (1) | KR20030014205A (ja) |
CN (1) | CN1426492A (ja) |
AU (1) | AU5262401A (ja) |
CA (1) | CA2404650A1 (ja) |
MY (1) | MY134255A (ja) |
TW (1) | TW538138B (ja) |
WO (1) | WO2001083849A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2832160B1 (fr) * | 2001-11-15 | 2005-01-14 | Atofina | PROCEDE DE TRAVAIL OU MISE EN FORME DES METAUX EN PRESENCE DE LUBRIFIANTS AQUEUX A BASE D'ACIDE METHANESULFONIQUE (AMS) ou D'UN SEL HYDROSOLUBLE D'AMS |
WO2005045100A1 (ja) * | 2003-11-10 | 2005-05-19 | Otsuka Chemical Co., Ltd. | マグネシウム及び/又はマグネシウム合金用防錆剤 |
TWI393178B (zh) * | 2005-01-27 | 2013-04-11 | Advanced Tech Materials | 半導體基板處理用之組成物 |
US7923423B2 (en) * | 2005-01-27 | 2011-04-12 | Advanced Technology Materials, Inc. | Compositions for processing of semiconductor substrates |
CN101529332B (zh) * | 2006-11-15 | 2012-12-12 | 住友电木株式会社 | 感光性树脂组合物、绝缘膜、保护膜以及电子设备 |
US20090317371A1 (en) * | 2008-06-08 | 2009-12-24 | Saccharides Science & Technology Ltd. | Method, Composition, and Device, for the Treatment of Amylase Malfunctions / Inactivity in Association with Saccharides (Mainly Polysaccharides) Based Diseases |
KR101774484B1 (ko) | 2011-02-15 | 2017-09-05 | 삼성디스플레이 주식회사 | 인듐 산화막의 비할로겐성 식각액 및 이를 이용한 표시 기판의 제조 방법 |
CN102747353A (zh) * | 2011-04-22 | 2012-10-24 | 鸿富锦精密工业(深圳)有限公司 | 镁合金壳体及其制作方法 |
CN102758198A (zh) * | 2012-07-13 | 2012-10-31 | 青岛科技大学 | 超分子膜化表面处理方法 |
EP2754732B1 (en) * | 2013-01-15 | 2015-03-11 | ATOTECH Deutschland GmbH | Aqueous composition for etching of copper and copper alloys |
CN103898582A (zh) * | 2013-06-03 | 2014-07-02 | 无锡市锡山区鹅湖镇荡口青荡金属制品厂 | 一种镁合金压铸件表面电镀铬预处理溶液 |
CN104005037B (zh) * | 2014-06-08 | 2016-05-18 | 马爱芬 | 一种金属防锈清洗剂 |
FR3098829B1 (fr) * | 2019-07-15 | 2021-07-16 | Safran Aircraft Engines | Composition, son utilisation pour le de-mordançage d’alliages de magnesium, ainsi que procede de de-mordançage d’alliages de magnesium |
CN111926319B (zh) * | 2020-04-21 | 2023-07-11 | 沂盟材料科技(上海)有限公司 | 一种敏感镁合金材料防护剂及其制备方法和应用 |
CN114525501B (zh) * | 2021-12-29 | 2024-06-11 | 广东瀚泽新材技术有限公司 | 镁合金封闭增强剂及封闭增强处理工艺 |
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BE634984A (ja) * | 1962-10-15 | |||
GB1041347A (en) * | 1964-03-04 | 1966-09-07 | Kelite Corp | Compositions and methods for preservation of metals |
US3852125A (en) * | 1971-10-26 | 1974-12-03 | Dow Chemical Co | Surface conversion treated magnesium |
JPS5456040A (en) * | 1977-09-20 | 1979-05-04 | Otsuka Chem Co Ltd | Metal corrosion preventing composition |
JPS5698495A (en) * | 1980-01-09 | 1981-08-07 | Hitachi Ltd | Surface treatment method of magnesium or its alloy |
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EP0995785A1 (en) | 1998-10-14 | 2000-04-26 | Texaco Development Corporation | Corrosion inhibitors and synergistic inhibitor combinations for the protection of light metals in heat-transfer fluids and engine coolants |
TW541354B (en) * | 1999-01-07 | 2003-07-11 | Otsuka Chemical Co Ltd | Surface treating agent and surface treating method for magnesium parts |
DE19913242C2 (de) * | 1999-03-24 | 2001-09-27 | Electro Chem Eng Gmbh | Chemisch passivierter Gegenstand aus Magnesium oder seinen Legierungen, Verfahren zur Herstellung und seine Verwendung |
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-
2001
- 2001-04-25 TW TW090109931A patent/TW538138B/zh not_active IP Right Cessation
- 2001-04-26 MY MYPI20011972A patent/MY134255A/en unknown
- 2001-04-27 AU AU52624/01A patent/AU5262401A/en not_active Abandoned
- 2001-04-27 KR KR1020027014338A patent/KR20030014205A/ko not_active Application Discontinuation
- 2001-04-27 CN CN01808639A patent/CN1426492A/zh active Pending
- 2001-04-27 EP EP01926004A patent/EP1277853A4/en not_active Withdrawn
- 2001-04-27 US US10/257,164 patent/US6787192B2/en not_active Expired - Fee Related
- 2001-04-27 WO PCT/JP2001/003676 patent/WO2001083849A1/ja not_active Application Discontinuation
- 2001-04-27 CA CA002404650A patent/CA2404650A1/en not_active Abandoned
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JPS6033360A (ja) * | 1983-08-02 | 1985-02-20 | Dow Chem Nippon Kk | マグネシウムまたはマグネシウム合金の処理方法 |
JPH06116739A (ja) * | 1992-10-02 | 1994-04-26 | Mitsui Mining & Smelting Co Ltd | マグネシウム合金製品の塗装前処理法及び塗装法 |
WO1995012010A1 (en) * | 1993-10-29 | 1995-05-04 | Henkel Corporation | Composition and process for treating magnesium-containing metals and product therefrom |
JPH10183372A (ja) * | 1996-12-25 | 1998-07-14 | Nisshin Steel Co Ltd | 溶接性に優れた黒色Zn−Mg系めっき鋼板及び黒色処理方法 |
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Also Published As
Publication number | Publication date |
---|---|
KR20030014205A (ko) | 2003-02-15 |
US20030145908A1 (en) | 2003-08-07 |
TW538138B (en) | 2003-06-21 |
EP1277853A1 (en) | 2003-01-22 |
AU5262401A (en) | 2001-11-12 |
EP1277853A4 (en) | 2004-04-07 |
CA2404650A1 (en) | 2002-09-27 |
CN1426492A (zh) | 2003-06-25 |
MY134255A (en) | 2007-11-30 |
US6787192B2 (en) | 2004-09-07 |
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