CN106065490A - A kind of double-colored pattern electrophoresis method of metal surface - Google Patents
A kind of double-colored pattern electrophoresis method of metal surface Download PDFInfo
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- CN106065490A CN106065490A CN201610506218.3A CN201610506218A CN106065490A CN 106065490 A CN106065490 A CN 106065490A CN 201610506218 A CN201610506218 A CN 201610506218A CN 106065490 A CN106065490 A CN 106065490A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/20—Pretreatment
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J129/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers
- C09J129/02—Homopolymers or copolymers of unsaturated alcohols
- C09J129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- 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
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- 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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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses the double-colored pattern electrophoresis method of a kind of metal surface, use PUR to make there is the shielding film of preset shape and adhere to metal surface, one time electrophoresis forms the first enamelled coating in the non-shaded areas of shielding film, made the second enamelled coating of shielding film overlay area deposition and the first enamelled coating different colours after removing shielding film again by secondary electrophoresis, thus the pattern of shielding film is transferred to metal surface.PUR shielding film can be removed by hot water or the simple method such as organic solvent dissolving cleaning, it is not necessary to uses highly basic or other corrosive substances, will not impact paint film structure；Can form various double-colored electrophoretic pattern according to demand, processing procedure is simple, and the outward appearance life-span is long, expands range simultaneously.
Description
Technical field
The present invention relates to a kind of metal surface treating method, particularly relate to the double-colored pattern electrophoresis side of a kind of metal surface
Method.
Background technology
Metallochrome or solid-shade paint surface that metallic article is dull cannot meet people's need diversified to product appearance
Ask, thus surface of metal product protect while, formed colorful decorative pattern outward appearance with manufacture decorative product and its
Product or the product of novel and beautiful that his parts style is unified are gradually paid attention to, and its processing technology is the most growing.
Existing patterned appearance manufacture method includes surface spraying coating, thermally transferred pattern, printing etc., the oil of these modes
Layer of ink and priming paint are separate, exist only in product surface and do not penetrate through priming paint, easily lose pattern because of abrasion, corrosion etc.,
Especially in more harsh use environment, the floor drain of such as sanitaryware, door handle, faucet etc. are chronically at humidity, easily
In the environment that burn into is often scrubbed, its outward appearance life-span is more difficult to long sustaining, and the shelf-life is short, this strong influence its use.
In view of this, electrophoresis process is gradually paid attention to.Electrophoresis process is with metal object surface as electrode, relies on electric field
Effect makes coating at the coating process of metal surface formation of deposits paint film, and adhesive force is strong, is susceptible to abrasion, and the outward appearance life-span is long.Existing
Some double-colored electrophoresis processes forming pattern, are all to form shielding layer by coating printing ink, wash oil after carrying out an electrophoresis
Ink, then carry out secondary electrophoresis.Ink clean time must use highly basic or other corrosive substances as abluent, can to once electricity
Swimming film layer damages, thus relatively big to its performance and appearance effects, and easily causes environmental pollution.Additionally, ink to be formed
The pattern of preset shape, needs to use the modes such as silk screen printing, realizes different patterns by designing different half tones, half tone
Between switching and cleaning maintenance trouble, cost is high, and the half tone life-span is short, and processing procedure is complex, limits its application.
Summary of the invention
The invention provides the double-colored pattern electrophoresis method of a kind of metal surface, which overcome existing for prior art not
In place of foot.
The technical solution adopted for the present invention to solve the technical problems is: the double-colored pattern electrophoresis side of a kind of metal surface
Method, comprises the following steps:
1) making hot-melt adhesive membrane, hot-melt adhesive membrane cuts into the shielding film of preset shape, wherein this PUR is soft
Changing point is 80 DEG C～180 DEG C, and the thickness of shielding film is 20-150 μm；
2) shielding film being laid and adhered to by hot pressing the surface of metallic article, the temperature of hot pressing is not less than this PUR
Softening point, pressure is 0.05-0.5kg/cm2, the time is 10-120s；
3) this metal surface carrying out an electrophoretic process, the area deposition first exposed in metal surface by electrophoresis paints
First enamelled coating is also solidified by layer；
4) nethike embrane of product surface is carried out in organic solvent swelling dissolving and removes；Or described shielding film is molten by hot water
Solution type PUR is made, and shielding film immerses 10min～60min in the water of 60 DEG C～95 DEG C and makes it dissolve and go from metal surface
Remove；
5) this metal surface is carried out secondary electrophoretic process, formed and the first paint in former shielding film overlay area by electrophoresis
Second enamelled coating is also solidified by layer different the second enamelled coating of color, forms double-colored pattern corresponding with this shielding film shape.
Preferably, described hot-melt adhesive membrane forms covering of described preset shape through Water Cutting, die-cut or cut
Film.
Preferably, described PUR mask is by polyethylene kind PUR, polypropylene hot melt adhesive, ethane-acetic acid ethyenyl
Copolymer PUR, polyesters PUR, polyamide-based PUR, polyurethanes PUR, styrene and block copolymer thereof
One or a combination thereof in hot melt adhesive are made.
Preferably, described organic solvent is acetone, Ketohexamethylene, acetic acid, ethyl acetate, butanone, oxolane, dichloromethane
Alkane, trichloroethane, ethyl propionate, butyl acetate, hexamethylene, N,N-dimethylacetamide, isopropanol, the one of butanol or its group
Close.
Preferably, described hot water dissolving's type PUR by 20%～65% polyvinyl alcohol, 20%～50% matrix resin, 3
～25% tackifying resin, plasticizer 10～50%, 0～10% filler and 2%～5% function additive composition, wherein
Matrix resin is ethylene-vinyl acetate copolymer, thermoplastic polyurethane, ethylene-vinyl alcohol copolymer, ethylene-the third
One in olefin(e) acid ethyl ester high polymer, polyethyl acrylate, polyamide, polyester or a combination thereof,
Tackifier is Colophonium, modified rosin, liquid rosin, C5 Petropols, C9 Petropols, C5/C9 copolymer resins, hydrogen
Change a kind of in methanoindene resin, hydrogenation C9 resin, terpene resin, rosin ester, hydrogenated wood rosin glycerol ester, cumarone resin, terpene resin or
A combination thereof,
Filler be the one in barium sulfate, Pulvis Talci, cenosphere, titanium dioxide, white carbon, Kaolin, mica powder or
A combination thereof,
Plasticizer is glycerol, ethylene glycol, diethylene glycol, 2,2'-ethylenedioxybis(ethanol)., tetraethylene glycol (TEG), propylene glycol, glycerol, caprolactam, acetyl
One in amine, Polyethylene Glycol, trihydroxy methyl propane, phthalic acid ester or a combination thereof,
Function additive is a kind of in lubricant, antioxidant, viscosity modifier or a combination thereof
Preferably, by adding appropriate dimethyl sulfoxide or glycerol, stirring hot water or vibration of ultrasonic wave in described hot water
Hot water accelerates the cleaning process of described hot water dissolving's type PUR shielding film.
Preferably, step 3) and step 5) in, the solid content of this electrophoresis is 5-15%, and pH value is 4-5, and voltage is 45-
55V, the time is 20-50s.
Preferably, the thickness of described first enamelled coating and the second enamelled coating is 5～30 μm.
Preferably, step 3) or step 5) in, described solidification is baking and curing, solidifies 20-40 and divide at 120 DEG C-180 DEG C
Clock.
Preferably, step 3) or step 5) in, described solidification is ultra-violet curing, dries 2-10 minute at 60 DEG C-90 DEG C
After in 1500-2500mJ/cm2Solidify under ultraviolet light.
Compared to prior art, the method have the advantages that
1. using PUR to make and have the shielding film of preset shape and hot pressing adheres to metal surface, an electrophoresis is not in
Shaded areas forms the first enamelled coating, makes shielding film overlay area deposition and the first enamelled coating by secondary electrophoresis again after removing shielding film
Second enamelled coating of different colours, thus the pattern of shielding film is transferred to metal surface.PUR shielding film can pass through hot water
Dissolve the simple method removals such as removal, or organic solvent swelling dissolving removal, it is not necessary to use highly basic or other corrosive substances,
Front road enamelled coating structure will not be impacted, and more environmental protection, simplify processing procedure simultaneously.
2. by the way of calendering or curtain coating, form the hot-melt adhesive membrane of predetermined thickness and cut the screening forming preset shape
Covering film and adhere to metal surface, processing procedure is simple, and controllability is strong；Shielding film thickness is more than the thickness of electrodeposited paint film, Ke Yiyou simultaneously
Effect keeps the planarization at electrophoretic paint layer edge, and the pattern boundaries making formation is clear, effective.
3. pattern wearability, acid resistance salt air corrosion performance and the decocting in water good test effect formed, is suitable to be applied to humidity
Perishable, often to scrub etc. in harsh environment, the outward appearance life-span is long.
4. the shielding film using hot water dissolving's type PUR to make can dissolve removing in the hot water, and wherein polyvinyl alcohol can
Biodegradation, simple and environmentally-friendly, further simplify processing procedure and reduce manufacturing conditions, being suitable to actual production and use.
Below in conjunction with drawings and Examples, the present invention is described in further detail；But a kind of metal surface of the present invention
Double-colored pattern electrophoresis method is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the pattern schematic diagram that the present invention is formed.
Detailed description of the invention
The double-colored pattern electrophoresis method of a kind of metal surface, is to be made shielding film by PUR to adhere to metallic article table
Face, then make shielding film overlay area and the electrophoretic paint of uncovering area area deposition different colours by secondary electrophoresis, thus formed pre-
Fixed double-colored pattern.
Shielding film is to be cut the predetermined pattern formed by hot-melt adhesive membrane, and thickness is 20-150 μm, PUR softening point model
Enclose for 80-180 DEG C.In one embodiment, during making, the material forming PUR is uniformly mixed according to a ratio, in 120-210 DEG C
Under carry out melt blending by banbury or extruder after, be then rolled into the thin film of predetermined thickness by calender, thin film is cold
But rolling after.During use, hot-melt adhesive membrane is cut, concrete die-cut by Water Cutting, punch press or cut etc.
Mode, can form arbitrary shape, and Fig. 1 is the citing of the shape formed.
PUR can be such as polyethylene kind PUR, polypropylene hot melt adhesive, ethene-vinyl acetate copolymer hot melt
In glue, polyesters PUR, polyamide-based PUR, polyurethanes PUR, styrene and block copolymer hot melt adhesive thereof
One or a combination thereof, the preferential PUR selecting matrix resin to be middle low-molecular-weight.
In one embodiment, PUR is increased by 20%～65% polyvinyl alcohol, 20%～50% matrix resin, 3～25%
Viscosity resin, plasticizer 10～50%, 0～10% filler and 2%～5% function additive composition, wherein
Matrix resin is ethylene-vinyl acetate copolymer, thermoplastic polyurethane, ethylene-vinyl alcohol copolymer, ethylene-the third
One in olefin(e) acid ethyl ester high polymer, polyethyl acrylate, polyamide, polyester or a combination thereof, preferably thermoplastic polyurethane,
Polyamide, the resin model that the polarity preferred polar group content of matrix resin is higher, the molecular weight of matrix resin is the most medium
The resin of molecular weight or the resin system of middle low-molecular-weight collocation.
Tackifier is Colophonium, modified rosin, liquid rosin, C5 Petropols, C9 Petropols, C5/C9 copolymer resins, hydrogen
Change a kind of in methanoindene resin, hydrogenation C9 resin, terpene resin, rosin ester, hydrogenated wood rosin glycerol ester, cumarone resin, terpene resin or
A combination thereof,
Filler be the one in barium sulfate, Pulvis Talci, cenosphere, titanium dioxide, white carbon, Kaolin, mica powder or
A combination thereof,
Plasticizer is glycerol, ethylene glycol, diethylene glycol, 2,2'-ethylenedioxybis(ethanol)., tetraethylene glycol (TEG), propylene glycol, glycerol, caprolactam, acetyl
One in amine, Polyethylene Glycol, trihydroxy methyl propane, phthalic acid ester or a combination thereof, preferably glycerol, own interior acyl
Amine, acetamide, Polyethylene Glycol, trihydroxy methyl propane, more preferably glycerol/caprolactam, glycerol/polyethylene glycol, glycerol/
Acetamide, glycerol/trihydroxy methyl propane.
Function additive is a kind of in lubricant, antioxidant, viscosity modifier or a combination thereof
The preparation method of this PUR is: joined in a certain amount of distilled water by load weighted plasticizer according to said ratio
Stir formation mixed liquor, and plasticizer gross mass is 1:5～1:20 with the mass ratio of water, according still further to said ratio by polyethylene
Alcohol is dissolved completely in described mixed liquor at 85 DEG C～100 DEG C, stirs, and stands a moment, is dried after froth in vacuum,
Obtain the polyvinyl alcohol sheet material of plasticization and modification, cut into serving pieces after drying；By described proportioning weigh dispensing, by polyvinyl alcohol section and
Rest materials in proportioning carries out melt blending and forms described hot water dissolving's type PUR.
This PUR is hot water dissolving's type PUR, and molecular components and structure by regulation polyvinyl alcohol can regulate it
Solution temperature and dissolution velocity, can control to dissolve in the hot water of 60 DEG C～95 DEG C.
The shielding film made is laid and is adhered to the surface of metallic article by hot pressing, and the temperature of hot pressing is not less than PUR
Softening point, pressure is 0.05-0.5kg/cm2, the time is 10-120s.PUR shielding film reaches softening point and has certain
Viscosity, thus adhere to surface of metal product, fixing after cooling.Preferably, can in advance surface of metal product be polished,
The pretreatment such as copper facing, nickel plating or a combination thereof are so that follow-up electrophoresis.
Then, metal surface is carried out an electrophoretic process, by the ability cathode electrophoresis region exposed in metal surface (the most not
The region that shielded film covers) formed thickness be the first enamelled coating of 5-30 μm and the first enamelled coating solidified.Consolidating of electrophoresis contains
Amount is 5-15%, and pH value is 4-5, and voltage is 45-55V, and the time is 20-50s.Owing to electrophoresis is that this is carried out as negative electrode with metal
Deposition, the region that nonconducting PUR shielding film covers does not deposits, it is achieved thereby that region-type plating paint.First enamelled coating is consolidated
Change can be ultra-violet curing, in 1500-2500mJ/cm after drying 2-10 minute at 60 DEG C-90 DEG C2Carry out solid under ultraviolet light
Change.Additionally, when using the PUR shielding film that softening temperature is higher, solidification is baking and curing, solidify at 120 DEG C-180 DEG C
20-40 minute.Additionally, can also be realized by anodic electrophoresis, not in this to go forth.
After electrophoresis, shielding film is removed from metal surface and cleans metal surface.In one embodiment, by metal watch
The most swelling dissolving of shielding film in face scouring are disposed.Organic solvent is acetone, Ketohexamethylene, acetic acid, acetic acid second
Ester, butanone, oxolane, dichloromethane, trichloroethane, ethyl propionate, butyl acetate, hexamethylene, N,N-dimethylacetamide,
Isopropanol, butanol etc., carry out swelling dissolving by the similar principle that mixes and remove.PUR is thermoplastic, and electrophoretic paint warp
Being thermosets after crossing hot setting or ultraviolet light polymerization, under organic solvent effect, Thermoplastic hot melt's glue occurs swelling,
Easily disposing, thermosetting electrophoretic paint does not the most occur swelling, electrophoretic paint will not be produced impact.In another embodiment
In, shielding film is hot water dissolving's type PUR, is soaked in hot water by shielding film and makes it dissolve and clean removal, the temperature of this hot water
Degree is 60 DEG C～95 DEG C, and soak time is 10min～60min.Preferably, also can add in the hot water appropriate dimethyl sulfoxide,
The organic solvents such as glycerol and by stirring or ultrasound wave accelerate cleaning process, the preferred temperature of hot water is 80 DEG C-95 DEG C.On
The method of stating can remove rapidly PUR shielding film, and cleaning process is simple, non-corrosiveness material, makees front road electrophoretic paint without destroying
With, it is ensured that the performance of electrophoretic paint.Wherein, in water soluble type PUR, polyvinyl alcohol is Biodegradable polymer material,
Under antibacterial and enzyme effect, 46 days degradables 75%, to environment non-hazardous.
Then, metal surface is carried out secondary electrophoretic process, (now should in former shielding film overlay area by ability cathode electrophoresis
Subregion metal covering is exposed) form second enamelled coating different with the first enamelled coating color and the second enamelled coating is solidified, wherein
The thickness of this second enamelled coating is 5-30 μm, and the solid content of this secondary electrophoresis is 5-15%, and pH value is 4-5, and voltage is 35-45V, time
Between be 20-50s, solidify similar with the solidification of the first enamelled coating.First enamelled coating and the second enamelled coating color are different, for example, first
Enamelled coating is black modelled after an antique, and the second enamelled coating is bronze；Or, the first enamelled coating is brown, and the second enamelled coating is light yellow, thus shape
Become double-colored pattern corresponding with shielding film shape.
Testing the goods of the inventive method gained, its result is as shown in table 1:
| Test event | Test condition | Test result | Traditional standard |
| (A) acid salt spray test | >500H | Outward appearance 10 grades | 64H |
| (C) knockout impact | >30L | Coating is without worn out | 12L |
| (E) water logging 65 DEG C | 200H | Outward appearance 10 grades | 38℃*100H |
| (D) adhesion (hundred cut) | / | 5A | |
| (B) thermal shock circulation | 10 circulations | Outward appearance 10 grades | 4 circulations |
| (F) pencil hardness (Rhizoma Sparganii) | / | 3H | 2H |
The wearability of double-colored electrophoretic pattern, acid resistance corrosive salt spray and the decocting in water test etc. that are formed are functional, have
In the lasting outward appearance life-span, i.e. having dicoration, can apply to again in the most harsh environment, such as kitchen guarding etc. are moist perishable,
The environment often scrubbed.
Above-described embodiment is only for further illustrating the double-colored pattern electrophoresis method of a kind of metal surface of the present invention, but basis
Invention is not limited to embodiment, every above example is made according to the technical spirit of the present invention any simple modification,
Equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (10)
1. the double-colored pattern electrophoresis method of a metal surface, it is characterised in that comprise the following steps:
1) make hot-melt adhesive membrane, hot-melt adhesive membrane is cut into the shielding film of preset shape, the wherein softening point of this PUR
Being 80 DEG C～180 DEG C, the thickness of shielding film is 20-150 μm；
2) shielding film being laid and adhered to by hot pressing the surface of metallic article, the temperature of hot pressing is not less than the soft of this PUR
Changing point, pressure is 0.05-0.5kg/cm2, the time is 10-120s；
3) this metal surface is carried out an electrophoretic process, by electrophoresis area deposition first enamelled coating exposed in metal surface also
First enamelled coating is solidified；
4) nethike embrane of product surface is carried out in organic solvent swelling dissolving and removes；Or described shielding film is by hot water dissolving's type
PUR is made, and shielding film immerses 10min～60min in the water of 60 DEG C～95 DEG C and makes it dissolve and remove from metal surface；
5) this metal surface is carried out secondary electrophoretic process, formed and the first enamelled coating face in former shielding film overlay area by electrophoresis
Second enamelled coating is also solidified by the second enamelled coating that form and aspect are different, forms double-colored pattern corresponding with this shielding film shape.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: described hot-melt adhesive membrane
The shielding film of described preset shape is formed through Water Cutting, die-cut or cut.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: described PUR mask
It is by polyethylene kind PUR, polypropylene hot melt adhesive, ethene-vinyl acetate copolymer PUR, polyesters PUR, polyamides
One or a combination thereof in amine PUR, polyurethanes PUR, styrene and block copolymer hot melt adhesive thereof are made.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: described organic solvent is
Acetone, Ketohexamethylene, acetic acid, ethyl acetate, butanone, oxolane, dichloromethane, trichloroethane, ethyl propionate, butyl acetate,
Hexamethylene, N,N-dimethylacetamide, isopropanol, the one of butanol or a combination thereof.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: described hot water dissolving's type
PUR by 20%～65% polyvinyl alcohol, 20%～50% matrix resin, 3～25% tackifying resin, plasticizer 10～50%,
0～10% filler and 2%～5% function additive composition, wherein
Matrix resin is ethylene-vinyl acetate copolymer, thermoplastic polyurethane, ethylene-vinyl alcohol copolymer, ethylene-acrylic acid
One in ethyl ester high polymer, polyethyl acrylate, polyamide, polyester or a combination thereof,
Tackifier is Colophonium, modified rosin, liquid rosin, C5 Petropols, C9 Petropols, C5/C9 copolymer resins, hydrogenation first
A kind of or its group in support indene resin, hydrogenation C9 resin, terpene resin, rosin ester, hydrogenated wood rosin glycerol ester, cumarone resin, terpene resin
Close,
Filler is the one in barium sulfate, Pulvis Talci, cenosphere, titanium dioxide, white carbon, Kaolin, mica powder or its group
Close,
Plasticizer is glycerol, ethylene glycol, diethylene glycol, 2,2'-ethylenedioxybis(ethanol)., tetraethylene glycol (TEG), propylene glycol, glycerol, caprolactam, acetamide, gathers
One in ethylene glycol, trihydroxy methyl propane, phthalic acid ester or a combination thereof,
Function additive is a kind of in lubricant, antioxidant, viscosity modifier or a combination thereof.
The double-colored pattern electrophoresis method of metal surface the most according to claim 5, it is characterised in that: by described hot water
The appropriate dimethyl sulfoxide of middle interpolation or glycerol, stirring hot water or vibration of ultrasonic wave hot water accelerate described hot water dissolving's type PUR and hide
Cover the cleaning process of film.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: step 3) and step 5)
In, the solid content of this electrophoresis is 5-15%, and pH value is 4-5, and voltage is 45-55V, and the time is 20-50s.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: described first enamelled coating and
The thickness of the second enamelled coating is 5～30 μm.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: step 3) or step 5)
In, described solidification is baking and curing, solidifies 20-40 minute at 120 DEG C-180 DEG C.
The double-colored pattern electrophoresis method of metal surface the most according to claim 1, it is characterised in that: step 3) or step
5) in, described solidification is ultra-violet curing, in 1500-2500mJ/cm after drying 2-10 minute at 60 DEG C-90 DEG C2Under ultraviolet light
Solidification.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106905917A (en) * | 2017-02-16 | 2017-06-30 | 天元（宜昌）胶粘剂科技有限公司 | A kind of silicone Road sealant and preparation method thereof |
| CN108265324A (en) * | 2018-01-31 | 2018-07-10 | 成都宏明双新科技股份有限公司 | A kind of shielding electrophoresis process |
| CN110453267A (en) * | 2019-08-12 | 2019-11-15 | 天津市凯鑫金属制品有限公司 | A kind of double-colored electrophoresis coating technique of fitness equipment metal frame body |
| CN115318591A (en) * | 2022-08-08 | 2022-11-11 | 铜陵铜官府文化创意股份公司 | Process for forming multicolor textures on metal casting surface |
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| CN102677130A (en) * | 2012-05-08 | 2012-09-19 | 广东欧珀移动通信有限公司 | Dual-color electrophoretic process for metal surface |
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| CN106905917A (en) * | 2017-02-16 | 2017-06-30 | 天元（宜昌）胶粘剂科技有限公司 | A kind of silicone Road sealant and preparation method thereof |
| CN108265324A (en) * | 2018-01-31 | 2018-07-10 | 成都宏明双新科技股份有限公司 | A kind of shielding electrophoresis process |
| CN110453267A (en) * | 2019-08-12 | 2019-11-15 | 天津市凯鑫金属制品有限公司 | A kind of double-colored electrophoresis coating technique of fitness equipment metal frame body |
| CN115318591A (en) * | 2022-08-08 | 2022-11-11 | 铜陵铜官府文化创意股份公司 | Process for forming multicolor textures on metal casting surface |
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