CN108753121A - A kind of clutch surface antirust paint baking method - Google Patents

A kind of clutch surface antirust paint baking method Download PDF

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Publication number
CN108753121A
CN108753121A CN201810417136.0A CN201810417136A CN108753121A CN 108753121 A CN108753121 A CN 108753121A CN 201810417136 A CN201810417136 A CN 201810417136A CN 108753121 A CN108753121 A CN 108753121A
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clutch
amino
workpiece
paint
antirust
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杨克全
闵永年
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ANHUI JINZHAI JAMES BOND FORKLIFT PARTS MANUFACTURING CO LTD
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ANHUI JINZHAI JAMES BOND FORKLIFT PARTS MANUFACTURING CO LTD
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Priority to CN201810417136.0A priority Critical patent/CN108753121A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2150/00—Compositions for coatings
    • C08G2150/90—Compositions for anticorrosive coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses a kind of amino for clutch surface antirust to dry paint preparation method, including：Stearic acid, phthalic anhydride, trimethylolpropane, poly glycol monomethyl ether, adipic acid, stannous iso caprylate, dimethylbenzene are uniformly mixed; it heats up under nitrogen protection; heat preservation esterification; cooling, adds levorotatory lactide, keeps the temperature; cooling; it is dissolved with dichloromethane, then is precipitated with ether, be dried to obtain prefabricated material；Prefabricated material, basic amine group fumarate copolymers, acrylic resin, dibasic ester, n-butanol, Powdered Activated Carbon, polyethylene, pigment are mixed, grinding, dispersion obtains amino and dries paint.The invention also discloses a kind of clutch surface antirust paint baking methods, including：Clutch workpiece surface is pre-processed；Pretreatment clutch workpiece is subjected to phosphatization；Phosphatization clutch workpiece is placed in film agent water mixed solution and is impregnated, then paint is dried in the above-mentioned amino of surface spraying, then dries, cooling obtains clutch surface antirust baking vanish workpiece.

Description

A kind of clutch surface antirust paint baking method
Technical field
The present invention relates to clutch surface processing technology field more particularly to a kind of amino for clutch surface antirust Dry paint preparation method and its in surface antirust paint baking method.
Background technology
The parts of clutch are required for carrying out paint baking to various parts after production is molded.Prior art In baking finish process, it is that former technique oil removing, emery cloth is used to wipe rust before baking vanish, then directly carries out baking vanish, baking vanish appearance is coarse, baking vanish Poor adhesive force, for a long time, the paint of workpiece surface is easy to fall off.
Invention content
Technical problems based on background technology, it is roasting that the present invention proposes a kind of amino for clutch surface antirust Dried lacquer preparation method and its in surface antirust paint baking method, gained paint film is high to the adhesive force of clutch workpiece, is not easy to take off It falls, and clutch workpiece surface is bright clean, beautiful after making processing, antirust, water-fast, excellent anti-corrosion performance.
A kind of amino for clutch surface antirust proposed by the present invention dries paint preparation method, includes the following steps：
S1, by stearic acid, phthalic anhydride, trimethylolpropane, poly glycol monomethyl ether, adipic acid, stannous iso caprylate, dimethylbenzene It is uniformly mixed, heats up under nitrogen protection, heat preservation esterification, cooling adds levorotatory lactide, continues to keep the temperature, and cools down, obtained solid Object is dissolved with dichloromethane, then is precipitated with ether, and prefabricated material is dried to obtain；
S2, prefabricated material, basic amine group fumarate copolymers, acrylic resin, dibasic ester, n-butanol, powder are lived Property charcoal, polyethylene, pigment mixing, grinding, dispersion obtain drying paint for the amino of clutch surface antirust.
Preferably, in S1,180-200 DEG C is warming up under nitrogen protection, heat preservation esterification 2-3h.
Preferably, in S1, it is cooled to 150-160 DEG C, continues to keep the temperature 10-20min, then be down to room temperature.
Preferably, in S1, stearic acid, phthalic anhydride, levorotatory lactide, trimethylolpropane, poly glycol monomethyl ether, oneself two Acid, stannous iso caprylate, dimethylbenzene weight ratio be 20-40：5-15：4-10：2-10：5-12：1-2：0.1-0.2：10-30.
Preferably, in S2, by prefabricated material, basic amine group fumarate copolymers, acrylic resin, dibasic ester, positive fourth Alcohol, Powdered Activated Carbon, polyethylene, pigment mixing, are ground to fineness≤20 μm, disperse 15-20min, rate of dispersion 1000- 1200r/min obtains amino and dries paint.
Preferably, in S2, prefabricated material, basic amine group fumarate copolymers, acrylic resin, dibasic ester, n-butanol, Powdered Activated Carbon, polyethylene, pigment always allow than for 40-60：15-39：10-30：2-10：10-20：40-80：20-30：1-3.
A kind of clutch surface antirust paint baking method that the present invention also proposes, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 5-9wt% and cleans 5-8min, cleaning temperature It is 60-70 DEG C, then uses temperature for 40-50 DEG C of flowing hot water injection 4-5min, air-dry, surface of polishing, then in antirust 40-50min is impregnated in oil, soaking temperature is 30-40 DEG C, is rinsed well with clear water, is sent into a concentration of 0.6-0.9wt% soda ash water 10-15min is impregnated in solution, then is rinsed well to obtain with clear water and pre-processed clutch workpiece；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 6-10min, then adopted in surface spraying Amino made from paint preparation method is dried described in claim any one of 1-6 for the amino of clutch surface antirust to dry Paint, then 140-150 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Preferably, in step a, antirust oil includes by weight：4-6 parts of barium mahogany sulfonate, C8-C10 carboxylates 1.5-3 Part, 6-8 parts of kerosene, 0.5-1.2 parts of vaseline sodium tripolyphosphate, 3.5-5.5 parts of ethylene glycol, 15-20 parts of castor oil.
Preferably, in step b, phosphatization coating solution is by the sodium hydroxide of 75g/L, the winestone of the edta salt of 12g/L, 4g/L The phosphoric acid composition of acid, the zinc oxide of 2.5g/L and 33g/L, solvent is water.
Since three hydroxyl activities of trimethylolpropane side chain are close, the present invention is using trimethylolpropane and tristearin Acid, phthalic anhydride carry out esterification, reacting balance, and the esterification activity of stearic acid, phthalic anhydride is adjusted in the addition of stannous iso caprylate, point Son amount is uniform；It is within close proximity since phthalic anhydride is esterified latter two carboxyl, is easy to form loop configuration, lead to excessive high hardness, poor toughness, Poor adhesive force, the paint film that is hit is easy to fall off, and the present invention is adjusted by the way that a small amount of adipic acid is added, and is not only conducive to the increasing of strand It is long, and flexibility and impact resistance can be improved, strong adhesive force；And in esterification process, the side chain of poly glycol monomethyl ether can With the ester bond that protection is formed, and increase the compatibility with basic amine group fumarate copolymers, acrylic resin, increases gained amino The richness of paint film is dried, adhesive force and surface smoothness are good, further reduce temperature, part polyethylene glycol during the reaction Monomethyl ether is reacted with levorotatory lactide, and the affinity with above-mentioned product can be improved in gained hydrophobic block end group, and hydrophilic Leading portion surrounds surface, good with the hydrophilic effect of Powdered Activated Carbon, and roughness is high, with follow-up clutch surface antirust paint baking The laminating degree of phosphatization clutch workpiece is high in method, but Powdered Activated Carbon is than great, and polyethylene has good flexibility, Amino can be coated on and dry coating surface, keep its surface smooth, prefabricated material is compounded with Powdered Activated Carbon, polyethylene, each other Degree of scatter is high, on the one hand can reduce the additive amount of Powdered Activated Carbon, so that gained amino is dried paint film not only light, but also adhere to Intensity is high, and another aspect sub-polyethylene is dispersed in surface, and surface flatness is high, and hydrophobic effect is good, effectively enhancing gained ammonia Base dries the waterproof effect of paint film, avoids clutch workpiece by steam corrosion.
The clutch surface antirust paint baking method of the present invention is simple, easy to operation, first in clutch workpiece surface shape At the compact texture phosphating coat with tiny holes, clutch workpiece surface product is increased, paint is dried to increase gained amino Contact area, substantially increase amino and dry paint to the adhesive force of workpiece, paint film adhesion is strong, not easily to fall off, and makes to bake Treated that workpiece surface is bright clean, beautiful for paint, antirust, water-fast, excellent anti-corrosion performance.
Specific implementation mode
In the following, technical scheme of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of amino for clutch surface antirust dries paint preparation method, includes the following steps：
S1, by 20kg stearic acid, 15kg phthalic anhydrides, 10kg trimethylolpropanes, 5kg poly glycol monomethyl ethers, 2kg oneself two Acid, 0.1kg stannous iso caprylates, 30kg dimethylbenzene are uniformly mixed, and 180 DEG C are warming up under nitrogen protection, and heat preservation esterification 3h is cooled to 150 DEG C, 4kg levorotatory lactides are added, continue to keep the temperature 20min, then be down to room temperature, obtained solid object is dissolved with dichloromethane, It is precipitated again with ether, is dried to obtain prefabricated material；
S2, by the prefabricated materials of 40kg, 39kg basic amine groups fumarate copolymers, 10kg acrylic resins, 10kg divalent acid Ester, 10kg n-butanols, 80kg Powdered Activated Carbons, 20kg polyethylene, the mixing of 3kg pigment, are ground to fineness≤20 μm, disperse 15min, rate of dispersion 1200r/min obtain drying paint for the amino of clutch surface antirust.
A kind of clutch surface antirust paint baking technique, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 5wt% and cleans 8min, cleaning temperature 60 DEG C, it then uses temperature for 50 DEG C of flowing hot water injection 4min, air-dries, then surface of polishing is impregnated in antirust oil 50min, soaking temperature are 30 DEG C, are rinsed well with clear water, are sent into a concentration of 0.9wt% soda ash aqueous solution and impregnate 10min, then It is rinsed well to obtain pretreatment clutch workpiece with clear water；Wherein antirust oil includes：Barium mahogany sulfonate 6kg, C8-C10 carboxylate 1.5kg, kerosene 8kg, vaseline sodium tripolyphosphate 0.5kg, ethylene glycol 5.5kg, castor oil 15kg；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；Wherein phosphatization coating solution is by the sodium hydroxide of 75g/L, tartaric acid, the 2.5g/ of the edta salt of 12g/L, 4g/L The zinc oxide of L and the phosphoric acid composition of 33g/L, solvent is water；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 10min, it is then above-mentioned in surface spraying Amino dries paint, and then 140 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Embodiment 2
A kind of amino for clutch surface antirust dries paint preparation method, includes the following steps：
S1, by 40kg stearic acid, 5kg phthalic anhydrides, 2kg trimethylolpropanes, 12kg poly glycol monomethyl ethers, 1kg adipic acids, 0.2kg stannous iso caprylates, 10kg dimethylbenzene are uniformly mixed, and 200 DEG C are warming up under nitrogen protection, and heat preservation esterification 2h is cooled to 160 DEG C, 10kg levorotatory lactides are added, continue to keep the temperature 10min, then be down to room temperature, obtained solid object is dissolved with dichloromethane, then It is precipitated with ether, is dried to obtain prefabricated material；
S2, by the prefabricated materials of 60kg, 15kg basic amine groups fumarate copolymers, 30kg acrylic resins, 2kg divalent acid Ester, 20kg n-butanols, 40kg Powdered Activated Carbons, 30kg polyethylene, the mixing of 1kg pigment, are ground to fineness≤20 μm, disperse 20min, rate of dispersion 1000r/min obtain drying paint for the amino of clutch surface antirust.
A kind of clutch surface antirust paint baking technique, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 9wt% and cleans 5min, cleaning temperature 70 DEG C, it then uses temperature for 40 DEG C of flowing hot water injection 5min, air-dries, then surface of polishing is impregnated in antirust oil 40min, soaking temperature are 40 DEG C, are rinsed well with clear water, are sent into a concentration of 0.6wt% soda ash aqueous solution and impregnate 15min, then It is rinsed well to obtain pretreatment clutch workpiece with clear water；Wherein antirust oil includes：Barium mahogany sulfonate 4kg, C8-C10 carboxylate 3kg, kerosene 6kg, vaseline sodium tripolyphosphate 1.2kg, ethylene glycol 3.5kg, castor oil 20kg；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；Wherein phosphatization coating solution is by the sodium hydroxide of 75g/L, tartaric acid, the 2.5g/ of the edta salt of 12g/L, 4g/L The zinc oxide of L and the phosphoric acid composition of 33g/L, solvent is water；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 6min, then in the above-mentioned ammonia of surface spraying Base dries paint, and then 150 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Embodiment 3
A kind of amino for clutch surface antirust dries paint preparation method, includes the following steps：
S1, by 25kg stearic acid, 12kg phthalic anhydrides, 8kg trimethylolpropanes, 8kg poly glycol monomethyl ethers, 1.8kg oneself two Acid, 0.12kg stannous iso caprylates, 25kg dimethylbenzene are uniformly mixed, and 185 DEG C, heat preservation esterification 2.8h are warming up under nitrogen protection, drop Temperature adds 6kg levorotatory lactides to 153 DEG C, continues to keep the temperature 18min, then be down to room temperature, obtained solid object dichloromethane is molten Solution, then precipitated with ether, it is dried to obtain prefabricated material；
S2, by the prefabricated materials of 45kg, 35kg basic amine groups fumarate copolymers, 15kg acrylic resins, 8kg divalent acid Ester, 12kg n-butanols, 70kg Powdered Activated Carbons, 22kg polyethylene, the mixing of 2.5kg pigment, are ground to fineness≤20 μm, disperse 16min, rate of dispersion 1150r/min obtain drying paint for the amino of clutch surface antirust.
A kind of clutch surface antirust paint baking technique, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 6wt% and cleans 7min, cleaning temperature 64 DEG C, it then uses temperature for 46 DEG C of flowing hot water injection 4.2min, air-dries, then surface of polishing is impregnated in antirust oil 46min, soaking temperature are 33 DEG C, are rinsed well with clear water, are sent into a concentration of 0.8wt% soda ash aqueous solution and impregnate 12min, then It is rinsed well to obtain pretreatment clutch workpiece with clear water；Wherein antirust oil includes：Barium mahogany sulfonate 5.5kg, C8-C10 carboxylic acid Salt 2kg, kerosene 7.5kg, vaseline sodium tripolyphosphate 0.8kg, ethylene glycol 5kg, castor oil 16kg；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；Wherein phosphatization coating solution is by the sodium hydroxide of 75g/L, tartaric acid, the 2.5g/ of the edta salt of 12g/L, 4g/L The zinc oxide of L and the phosphoric acid composition of 33g/L, solvent is water；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 9min, then in the above-mentioned ammonia of surface spraying Base dries paint, and then 144 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Embodiment 4
A kind of amino for clutch surface antirust dries paint preparation method, includes the following steps：
S1, by 35kg stearic acid, 8kg phthalic anhydrides, 4kg trimethylolpropanes, 10kg poly glycol monomethyl ethers, 1.2kg oneself two Acid, 0.18kg stannous iso caprylates, 15kg dimethylbenzene are uniformly mixed, and 195 DEG C, heat preservation esterification 2.2h are warming up under nitrogen protection, drop Temperature adds 8kg levorotatory lactides to 157 DEG C, continues to keep the temperature 12min, then be down to room temperature, obtained solid object dichloromethane is molten Solution, then precipitated with ether, it is dried to obtain prefabricated material；
S2, by the prefabricated materials of 55kg, 20kg basic amine groups fumarate copolymers, 25kg acrylic resins, 4kg divalent acid Ester, 18kg n-butanols, 50kg Powdered Activated Carbons, 28kg polyethylene, the mixing of 1.5kg pigment, are ground to fineness≤20 μm, disperse 18min, rate of dispersion 1050r/min obtain drying paint for the amino of clutch surface antirust.
A kind of clutch surface antirust paint baking technique, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 8wt% and cleans 6min, cleaning temperature 66 DEG C, it then uses temperature for 44 DEG C of flowing hot water injection 4.8min, air-dries, then surface of polishing is impregnated in antirust oil 44min, soaking temperature are 37 DEG C, are rinsed well with clear water, are sent into a concentration of 0.7wt% soda ash aqueous solution and impregnate 14min, then It is rinsed well to obtain pretreatment clutch workpiece with clear water；Wherein antirust oil includes：Barium mahogany sulfonate 4.5kg, C8-C10 carboxylic acid Salt 2.5kg, kerosene 6.5kg, vaseline sodium tripolyphosphate 1kg, ethylene glycol 4kg, castor oil 18kg；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；Wherein phosphatization coating solution is by the sodium hydroxide of 75g/L, tartaric acid, the 2.5g/ of the edta salt of 12g/L, 4g/L The zinc oxide of L and the phosphoric acid composition of 33g/L, solvent is water；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 7min, then in the above-mentioned ammonia of surface spraying Base dries paint, and then 148 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Embodiment 5
A kind of amino for clutch surface antirust dries paint preparation method, includes the following steps：
S1, by 30kg stearic acid, 10kg phthalic anhydrides, 6kg trimethylolpropanes, 9kg poly glycol monomethyl ethers, 1.5kg oneself two Acid, 0.15kg stannous iso caprylates, 20kg dimethylbenzene are uniformly mixed, and 190 DEG C, heat preservation esterification 2.5h are warming up under nitrogen protection, drop Temperature adds 7kg levorotatory lactides to 155 DEG C, continues to keep the temperature 15min, then be down to room temperature, obtained solid object dichloromethane is molten Solution, then precipitated with ether, it is dried to obtain prefabricated material；
S2, by the prefabricated materials of 50kg, 30kg basic amine groups fumarate copolymers, 20kg acrylic resins, 6kg divalent acid Ester, 15kg n-butanols, 60kg Powdered Activated Carbons, 25kg polyethylene, the mixing of 2kg pigment, are ground to fineness≤20 μm, disperse 17min, rate of dispersion 1100r/min obtain drying paint for the amino of clutch surface antirust.
A kind of clutch surface antirust paint baking technique, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 7wt% and cleans 6.5min, cleaning temperature is It 65 DEG C, then uses temperature for 45 DEG C of flowing hot water injection 4.5min, air-dries, then surface of polishing is impregnated in antirust oil 45min, soaking temperature are 35 DEG C, are rinsed well with clear water, are sent into a concentration of 0.75wt% soda ash aqueous solution and impregnate 13min, It is rinsed well to obtain pretreatment clutch workpiece with clear water again；Wherein antirust oil includes：Barium mahogany sulfonate 5kg, C8-C10 carboxylic acid Salt 2.2kg, kerosene 7kg, vaseline sodium tripolyphosphate 0.9kg, ethylene glycol 4.5kg, castor oil 17kg；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；Wherein phosphatization coating solution is by the sodium hydroxide of 75g/L, tartaric acid, the 2.5g/ of the edta salt of 12g/L, 4g/L The zinc oxide of L and the phosphoric acid composition of 33g/L, solvent is water；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 8min, then in the above-mentioned ammonia of surface spraying Base dries paint, and then 145 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Comparative example 1
A kind of amino dries the preparation method of paint, includes the following steps：By the prefabricated materials of 50kg, 30kg basic amine group formic acid Ester copolymer, 20kg acrylic resins, 6kg dibasic esters, 15kg n-butanols, 60kg Powdered Activated Carbons, 25kg polyethylene, 2kg Pigment mixes, and is ground to fineness≤20 μm, disperses 17min, rate of dispersion 1100r/min, obtains amino and dry paint.
A kind of clutch surface antirust paint baking technique, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 7wt% and cleans 6.5min, cleaning temperature is It 65 DEG C, then uses temperature for 45 DEG C of flowing hot water injection 4.5min, air-dries, then surface of polishing is impregnated in antirust oil 45min, soaking temperature are 35 DEG C, are rinsed well with clear water, are sent into a concentration of 0.75wt% soda ash aqueous solution and impregnate 13min, It is rinsed well to obtain pretreatment clutch workpiece with clear water again；Wherein antirust oil includes：Barium mahogany sulfonate 5kg, C8-C10 carboxylic acid Salt 2.2kg, kerosene 7kg, vaseline sodium tripolyphosphate 0.9kg, ethylene glycol 4.5kg, castor oil 17kg；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；Wherein phosphatization coating solution is by the sodium hydroxide of 75g/L, tartaric acid, the 2.5g/ of the edta salt of 12g/L, 4g/L The zinc oxide of L and the phosphoric acid composition of 33g/L, solvent is water；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 8min, then in the above-mentioned ammonia of surface spraying Base dries paint, and then 145 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Comparative example 2
A kind of clutch surface antirust paint baking technique, includes the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 7wt% and cleans 6.5min, cleaning temperature is It 65 DEG C, then uses temperature for 45 DEG C of flowing hot water injection 4.5min, air-dries, then surface of polishing is impregnated in antirust oil 45min, soaking temperature are 35 DEG C, are rinsed well with clear water, are sent into a concentration of 0.75wt% soda ash aqueous solution and impregnate 13min, It is rinsed well to obtain pretreatment clutch workpiece with clear water again；Wherein antirust oil includes：Barium mahogany sulfonate 5kg, C8-C10 carboxylic acid Salt 2.2kg, kerosene 7kg, vaseline sodium tripolyphosphate 0.9kg, ethylene glycol 4.5kg, castor oil 17kg；
B, pretreatment clutch workpiece is sent into processing in phosphatization coating solution and forms phosphating coat on surface, drying obtains phosphorus Change clutch workpiece；Wherein phosphatization coating solution is by the sodium hydroxide of 75g/L, tartaric acid, the 2.5g/ of the edta salt of 12g/L, 4g/L The zinc oxide of L and the phosphoric acid composition of 33g/L, solvent is water；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 8min, it is then commercially available general in surface spraying Logical amino dries paint, and then 145 DEG C of drying, natural cooling obtain clutch surface antirust baking vanish workpiece.
Embodiment 5, comparative example 1 and 2 gained clutch surface antirust baking vanish workpiece of comparative example are placed in normal conditions It is tested for the property after 2h, result is as follows：
Embodiment 5 Comparative example 1 Comparative example 2
Hardness 3H 2H 1H
Water resistance, h > 240 200 180
Alkali resistance (5%NaoH), min > 20 10 8
Acid resistance (5% hydrochloric acid), d > 20 10 10
Anti- dimethylbenzene, d 8 5 4
Impact strength, cm 80 50 40
Adhesive force (scratch), grade 3 2 2
Bending property, mm 4 2 2
Gloss (60 °) 94 90 90
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (7)

1. a kind of amino for clutch surface antirust dries paint preparation method, which is characterized in that include the following steps：
S1, stearic acid, phthalic anhydride, trimethylolpropane, poly glycol monomethyl ether, adipic acid, stannous iso caprylate, dimethylbenzene are mixed Uniformly, it heats up under nitrogen protection, heat preservation esterification, cooling adds levorotatory lactide, continues to keep the temperature, and cools down, and obtained solid object is used Dichloromethane dissolves, then is precipitated with ether, is dried to obtain prefabricated material；
S2, by prefabricated material, basic amine group fumarate copolymers, acrylic resin, dibasic ester, n-butanol, Powdered Activated Carbon, Polyethylene, pigment mixing, grinding, dispersion obtain drying paint for the amino of clutch surface antirust.
2. the amino for being used for clutch surface antirust according to claim 1 dries paint preparation method, which is characterized in that S1 In, 180-200 DEG C is warming up under nitrogen protection, heat preservation esterification 2-3h.
3. the amino according to claim 1 or claim 2 for clutch surface antirust dries paint preparation method, which is characterized in that In S1, it is cooled to 150-160 DEG C, continues to keep the temperature 10-20min, then be down to room temperature.
4. drying paint preparation method, feature according to the amino for being used for clutch surface antirust described in claim any one of 1-3 It is, in S1, stearic acid, phthalic anhydride, levorotatory lactide, trimethylolpropane, poly glycol monomethyl ether, adipic acid, isooctyl acid are sub- Tin, dimethylbenzene weight ratio be 20-40：5-15：4-10：2-10：5-12：1-2：0.1-0.2：10-30.
5. drying paint preparation method, feature according to the amino for being used for clutch surface antirust described in claim any one of 1-4 It is, in S2, by prefabricated material, basic amine group fumarate copolymers, acrylic resin, dibasic ester, n-butanol, powder activity Charcoal, polyethylene, pigment mixing, are ground to fineness≤20 μm, disperse 15-20min, rate of dispersion 1000-1200r/min is obtained Paint is dried to amino.
6. drying paint preparation method, feature according to the amino for being used for clutch surface antirust described in claim any one of 1-5 It is, in S2, prefabricated material, basic amine group fumarate copolymers, acrylic resin, dibasic ester, n-butanol, powder activity Charcoal, polyethylene, pigment always allow than for 40-60：15-39：10-30：2-10：10-20：40-80：20-30：1-3.
7. a kind of clutch surface antirust paint baking method, which is characterized in that include the following steps：
A, clutch workpiece is submerged into the sodium hydroxide solution of a concentration of 5-9wt% and cleans 5-8min, cleaning temperature 60- It 70 DEG C, then uses temperature for 40-50 DEG C of flowing hot water injection 4-5min, air-dries, then surface of polishing is soaked in antirust oil 40-50min is steeped, soaking temperature is 30-40 DEG C, is rinsed well, is sent into a concentration of 0.6-0.9wt% soda ash aqueous solution with clear water 10-15min is impregnated, then rinses well to obtain with clear water and pre-processes clutch workpiece；
B, will pretreatment clutch workpiece be sent into phosphatization coating solution in processing to surface formed phosphating coat, drying obtain phosphatization from Clutch workpiece；
C, phosphatization clutch workpiece is placed in film agent water mixed solution and impregnates 6-10min, then in surface spraying using power Profit requires the amino described in any one of 1-6 for clutch surface antirust to dry amino made from paint preparation method and dries paint, connects 140-150 DEG C of drying, natural cooling obtains clutch surface antirust baking vanish workpiece.
CN201810417136.0A 2018-05-04 2018-05-04 A kind of clutch surface antirust paint baking method Pending CN108753121A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101343501A (en) * 2008-08-12 2009-01-14 无锡市虎皇漆业有限公司 Quick-drying amino-stoving varnish and preparation thereof
CN103044667A (en) * 2012-12-21 2013-04-17 江苏三木化工股份有限公司 Alkyd resin for amino baking paint and preparation method thereof
CN105032746A (en) * 2015-06-17 2015-11-11 安徽省金寨县金钢叉车部件制造有限公司 Rust-preventing baking varnish treatment process of surfaces of clutches

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101343501A (en) * 2008-08-12 2009-01-14 无锡市虎皇漆业有限公司 Quick-drying amino-stoving varnish and preparation thereof
CN103044667A (en) * 2012-12-21 2013-04-17 江苏三木化工股份有限公司 Alkyd resin for amino baking paint and preparation method thereof
CN105032746A (en) * 2015-06-17 2015-11-11 安徽省金寨县金钢叉车部件制造有限公司 Rust-preventing baking varnish treatment process of surfaces of clutches

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Application publication date: 20181106