CN107815217A - A kind of preparation method of the special high temperature resistant high adsorption coating of die casting - Google Patents
A kind of preparation method of the special high temperature resistant high adsorption coating of die casting Download PDFInfo
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- CN107815217A CN107815217A CN201711073153.9A CN201711073153A CN107815217A CN 107815217 A CN107815217 A CN 107815217A CN 201711073153 A CN201711073153 A CN 201711073153A CN 107815217 A CN107815217 A CN 107815217A
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- Prior art keywords
- temperature resistant
- die casting
- preparation
- powder
- high temperature
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Classifications
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
Abstract
The invention discloses a kind of preparation method of die casting machine high-temperature resistant coating, is mainly formed including following raw material：Epoxy resin, silicone acrylic emulsion, deionized water, dimethyl silicone polymer, bipentaerythrite, composite inorganic pigment, strontium chromate powder, magnesium oxide powder, graphite powder, yittrium oxide, sodium citrate, melamine phosphate, flaky mica powder, calcium formate, nano carborundum powder, rare earth cerium fluoride, curing agent, adhesion promoter, viscosity adjustment solvent, dispersant, levelling agent, coupling agent, defoamer, auxiliary agent.The present invention has good high temperature resistant, ageing-resistant, fatigue proof feature, also has the advantages that viscosity is high, cracking resistance seam, film is fine and close in neat formation, and adhesive force is splendid.
Description
Technical field
The present invention relates to die casting machine technical field, more particularly to a kind of special high temperature resistant high adsorption coating of die casting
Preparation method.
Background technology
Die casting machine is exactly that molten metal bath injection is cooled and shaped into mould under pressure, and solid is obtained after die sinking
A series of industrial foundry machineries of metal casting.With scientific and technical and industrial progress, especially with automobile, motor
The industrial expansion such as car and household electrical appliance, but from energy-conservation, saving raw material aspects, die-casting technique has obtained extremely fast
The development of speed.
The parts such as the die casting of die casting machine directly contact with molten metal bath, because its temperature is higher, are applied using common
Cracking occurs in material, swollen, and phenomena such as coming off, service life substantially reduces.
The content of the invention
The technical problems to be solved by the invention are to overcome drawbacks described above present in prior art, it is further provided one
The preparation method of the kind special high temperature resistant high adsorption coating of die casting.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of preparation method of the special high temperature resistant high adsorption coating of die casting, comprises the following steps：
Step1, by epoxy resin, silicone acrylic emulsion, deionized water, graphite powder, yittrium oxide, sodium citrate, melamine phosphorus
Hydrochlorate, flaky mica powder, dispersant, levelling agent, coupling agent and defoamer pour into dispersion cylinder, high under conditions of 150-180 DEG C
Speed is stirred, and mixing speed is 400-500 revs/min, is poured into container mixed material after well mixed and is put into 4 degrees Celsius
Refrigerating chamber stand, until mixed material temperature stabilization, then mixed material is taken out scattered after pouring into clean dry again
Cylinder, dimethyl silicone polymer, bipentaerythrite, composite inorganic pigment, strontium chromate powder and magnesium oxide powder are then added,
Stirring reaction 1-1.5 hours under conditions of 200-250 DEG C, 500-550 revs/min；
Step2, the mixed material that step 1 is obtained are poured into ultrasonic dispersing machine, then add calcium formate and nano-sized carbon
SiClx powder, ultrasonic dispersing machine is opened, dispersion temperature is 200 DEG C, and jitter time is 15 minutes, and rare earth is added after scattered end
Cerium fluoride, curing agent, adhesion promoter, viscosity adjustment solvent and auxiliary agent, are again turned on ultrasonic dispersing machine, dispersion temperature is
300 DEG C, jitter time is 30 minutes；
Step3, mixed material that step 2 is obtained is using high-speed shearing machine at 150-160 DEG C, 8000-9000 revs/min
Shear rate down cut disperses 40-60 minutes；
Step4, the mixed material that step 3 obtains is ground, is ground to fineness≤30 μm, is refiltered, that is, is obtained into
Product.
Further, the composite inorganic pigment includes nano oxidized iron pigment or nanometer titanium dioxide, the nano oxygen
Change iron pigment include nano oxidized cologne earth, nano-sized black iron oxide, nano iron oxide yellow and it is nanometer iron oxide red in one kind.
Further, the curing agent is polymerization macromolecule amine reagent.
Further, the adhesion promoter is compound bifunctional silane.
Further, the viscosity adjustment solvent is toluene, dimethylbenzene, trimethylbenzene, butyl acetate, polyethylene glycol, dichloro
It is one or more than one kinds of in ethane.
Further, the dispersant is lignin sulfonate, sulfonated polystyrene, PVP and poly- third
Olefin(e) acid presses 8:5:1:1 ratio mixes.
Further, one kind that the levelling agent is selected in acrylic resin, Lauxite and melamine resin
Or multiple combinations.
Further, the defoamer is Silica hydrogel.
Further, the auxiliary agent is that polymeric acrylic acid esters flow control agent and benzoin class degasser press 1:2 ratio
Example mixes.
Beneficial effects of the present invention：The present invention uses epoxy resin as major ingredient, is aided with other each auxiliary materials so that compound
Resistance to elevated temperatures is obviously improved, and dynamic viscosity is big under hot environment, the interphase interaction of each raw material, is cooperated, and is produced compound
Effect, the system of an improvement coating property is formed, make coating that there is good high temperature resistant, ageing-resistant, fatigue proof feature, also
There is viscosity height, cracking resistance seam, film is fine and close in neat formation, and adhesive force is splendid.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, used required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is schematic diagram when embodiment 4 molds；
Schematic diagram when Fig. 2 is 4 matched moulds of embodiment；
In accompanying drawing, the list of parts representated by each label is as follows：
1- slide bars, 2- cover half, 3- dynamic models, 4- liftout magnet, 5- grooves, 6- struts, 7- fixed dams, 8- expects pipes, 9- add
Material mouth, 10- pistons, 11- piston rods, 12- force magnet.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
, it is necessary to explanation in description of the invention, the orientation of instruction such as term " vertical ", " on ", " under ", " level " or
Person's position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of and describes this practicality and simplify to describe,
Rather than instruction either implies that signified device or element must have specific orientation, with specific azimuth configuration and behaviour
Make, therefore be not considered as limiting the invention.In addition, " first ", " second ", " the 3rd ", " the 4th " are only used for describing mesh
, and it is not intended that instruction or hint relative importance.
In description of the invention, it is also necessary to explanation, unless otherwise clear and definite regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection, can be mechanical connection or electrical connection, can be directly connected to or be connected by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Embodiment 1
A kind of preparation method of the special high temperature resistant high adsorption coating of die casting, comprises the following steps：
Step1, by epoxy resin, silicone acrylic emulsion, deionized water, graphite powder, yittrium oxide, sodium citrate, melamine phosphorus
Hydrochlorate, flaky mica powder, dispersant, levelling agent, coupling agent and defoamer pour into dispersion cylinder, high under conditions of 150-180 DEG C
Speed is stirred, and mixing speed is 400-500 revs/min, is poured into container mixed material after well mixed and is put into 4 degrees Celsius
Refrigerating chamber stand, until mixed material temperature stabilization, then mixed material is taken out scattered after pouring into clean dry again
Cylinder, dimethyl silicone polymer, bipentaerythrite, composite inorganic pigment, strontium chromate powder and magnesium oxide powder are then added,
Stirring reaction 1-1.5 hours under conditions of 200-250 DEG C, 500-550 revs/min；
Step2, the mixed material that step 1 is obtained are poured into ultrasonic dispersing machine, then add calcium formate and nano-sized carbon
SiClx powder, ultrasonic dispersing machine is opened, dispersion temperature is 200 DEG C, and jitter time is 15 minutes, and rare earth is added after scattered end
Cerium fluoride, curing agent, adhesion promoter, viscosity adjustment solvent and auxiliary agent, are again turned on ultrasonic dispersing machine, dispersion temperature is
300 DEG C, jitter time is 30 minutes；
Step3, mixed material that step 2 is obtained is using high-speed shearing machine at 150-160 DEG C, 8000-9000 revs/min
Shear rate down cut disperses 40-60 minutes；
Step4, the mixed material that step 3 obtains is ground, is ground to fineness≤30 μm, is refiltered, that is, is obtained into
Product.
Further, the composite inorganic pigment includes nano oxidized iron pigment or nanometer titanium dioxide, the nano oxygen
Change iron pigment include nano oxidized cologne earth, nano-sized black iron oxide, nano iron oxide yellow and it is nanometer iron oxide red in one kind.
Further, the curing agent is polymerization macromolecule amine reagent.
Further, the adhesion promoter is compound bifunctional silane.
Further, the viscosity adjustment solvent is toluene, dimethylbenzene, trimethylbenzene, butyl acetate, polyethylene glycol, dichloro
It is one or more than one kinds of in ethane.
Further, the dispersant is lignin sulfonate, sulfonated polystyrene, PVP and poly- third
Olefin(e) acid presses 8:5:1:1 ratio mixes.
Further, one kind that the levelling agent is selected in acrylic resin, Lauxite and melamine resin
Or multiple combinations.
Further, the defoamer is Silica hydrogel.
Further, the auxiliary agent is that polymeric acrylic acid esters flow control agent and benzoin class degasser press 1:2 ratio
Example mixes.
Embodiment 2
The parts by weight of each raw material are：The parts by weight of epoxy resin 180, the parts by weight of silicone acrylic emulsion 35, the weight of deionized water 28
Part, the parts by weight of dimethyl silicone polymer 12, the parts by weight of bipentaerythrite 8, the parts by weight of composite inorganic pigment 6, the weight of strontium chromate powder 3
Measure part, the parts by weight of magnesium oxide powder 2, the parts by weight of graphite powder 12, the parts by weight of yittrium oxide 1, the parts by weight of sodium citrate 8, melamine
The parts by weight of phosphate 4, the parts by weight of flaky mica powder 8, the parts by weight of calcium formate 3, the parts by weight of nano carborundum powder 4, rare earth cerium fluoride 1
Parts by weight, the parts by weight of curing agent 3, mixed type are molten without the parts by weight of nonex powder 6, the parts by weight of adhesion promoter 4, viscosity adjustment
The parts by weight of agent 3, the parts by weight of dispersant 3, the parts by weight of levelling agent 3, the parts by weight of coupling agent 4, the parts by weight of defoamer 5, the weight of auxiliary agent 7
Part.
Embodiment 3
The parts by weight of each raw material are：The parts by weight of epoxy resin 165, the parts by weight of silicone acrylic emulsion 45, the weight of deionized water 33
Part, the parts by weight of dimethyl silicone polymer 12, the parts by weight of bipentaerythrite 6, the parts by weight of composite inorganic pigment 6, the weight of strontium chromate powder 3
Measure part, the parts by weight of magnesium oxide powder 2, the parts by weight of graphite powder 12, the parts by weight of yittrium oxide 1, the parts by weight of sodium citrate 7, melamine
The parts by weight of phosphate 3, the parts by weight of flaky mica powder 5, the parts by weight of calcium formate 4, the parts by weight of nano carborundum powder 4, rare earth cerium fluoride 2
Parts by weight, the parts by weight of curing agent 4, the parts by weight of adhesion promoter 5, the viscosity adjustment parts by weight of solvent 4, the parts by weight of dispersant 3, stream
The flat parts by weight of agent 2, the parts by weight of coupling agent 4, the parts by weight of defoamer 5, the parts by weight of auxiliary agent 7.
Embodiment 4
As shown in Figure 1 and Figure 2, a kind of efficient press structure, including slide bar 1, cover half 2 and dynamic model 3, the cover half 2 are located at
The right side of slide bar 1, the dynamic model 3 are located at the left side of slide bar 1；
The dynamic model 3 can slide on slide bar 1, and the dynamic model 3 is provided with liftout magnet 4, the liftout magnet 4 and dynamic model
Groove 5 on 3 matches, and the left end connection strut 6 of the liftout magnet 4, the strut 6 runs through dynamic model 3, the dynamic model 3
Left side is provided with fixed dam 7, and the fixed dam 7 acts on strut 6, and when dynamic model 3 is moved to the left, fixed dam 7 blocks support
Bar 6 so that liftout magnet 4 is by die casting roof fall；
The cover half 2 connects expects pipe 8, and the right-hand member of the expects pipe 8 is provided with charge door 9, piston 10 is provided with the expects pipe 8,
The piston 10 is driven by piston rod 11 to be moved left and right in expects pipe 8, and the inside of cover half 2 is provided with force magnet 12, described
The position of force magnet 12 is corresponding with the position of liftout magnet 4, and exert a force magnet 12 and the repulsion of the phase of liftout magnet 4, when dynamic model 3
During mould 2-in-1 with cover half, repulsion causes liftout magnet 4 to slip into groove 5.
Further, the piston rod 11 is connected with the injection hydraulic cylinder on the right side of it.
Further, the connected mode of the cover half 2 and slide bar 1 is welded to be fixed.
Further, the liftout magnet 4 welds with the connected mode of strut 6 to be fixed.
Further, the dynamic model 3 is driven by toggle structure or ball screw arrangement.
Further, coating produced by the present invention is coated with the cover half 2, dynamic model 3 and liftout magnet 4.
By coating made from embodiment 2 and 3 coated in (sheet metal is smooth, without the machinery such as impression and pit on sheet metal
Defect, size are 50*120*1mm (pressing national standard GB1735~79), and sheet metal carries out oil removing, derusting ensures that surface of thin steel sheet is clear
It is clean, dry), place the test that correlated performance is carried out after solidifying at room temperature 24 hours.
Storage stability, adhesive force (GB1720~89), impact strength (GB/T1732~1993), drying time
(GB1728~1979) etc. test by concerned countries standard.
Heat-resisting quantity is tested：Model is put into Muffle furnace, is warming up to 800 degree, is taken out after placing 10 hours, is cooled to room
Temperature, specimen surface situation is observed, such as without pull-away, cracking situation, illustrate that paint film heat resistance is good (GB1735~89).
Cold-hot alternation performance test：Model is put into Muffle furnace, is warming up to 800 degree, is incubated 10 hours, takes out, puts
Enter in cold water and soak 1 hour, be 1 cycle.5 cycles repeatedly, observation paint film change.Such as but without pull-away, cracking feelings
Condition, illustrate that paint film cold-hot alternation is functional.
Corrosion resistance is tested：Model is put into salt fog machine, does spray testing with 5% NaCL solution, observation model is
No bubbling, get rusty (GB/T1771~91).
Method of testing more than, Examples 1 and 2 result of the test such as following table：
The general principle and principal character of the present invention has been shown and described above.It should be understood by those skilled in the art that
The present invention is not limited to the above embodiments, merely illustrating the principles of the invention described in above-described embodiment and specification,
Without departing from the spirit and scope, various changes and modifications of the present invention are possible, and these changes and improvements all fall
Enter in scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (9)
1. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting, it is characterised in that comprise the following steps：
Step1, by epoxy resin, silicone acrylic emulsion, deionized water, graphite powder, yittrium oxide, sodium citrate, melamine phosphate,
Flaky mica powder, dispersant, levelling agent, coupling agent and defoamer pour into dispersion cylinder, the high-speed stirred under conditions of 150-180 DEG C
Mixing, mixing speed are 400-500 revs/min, pour into container mixed material after well mixed and are put into 4 degrees Celsius of refrigeration
Room is stood, and until mixed material temperature stabilization, mixed material then is taken out into the dispersion cylinder after pouring into clean dry again, then
Dimethyl silicone polymer, bipentaerythrite, composite inorganic pigment, strontium chromate powder and magnesium oxide powder are added, in 200-250
DEG C, stirring reaction 1-1.5 hours under conditions of 500-550 revs/min；
Step2, the mixed material that step 1 is obtained are poured into ultrasonic dispersing machine, then add calcium formate and nanometer silicon carbide
Powder, ultrasonic dispersing machine is opened, dispersion temperature is 200 DEG C, and jitter time is 15 minutes, and rare earth fluorination is added after scattered end
Cerium, curing agent, adhesion promoter, viscosity adjustment solvent and auxiliary agent, are again turned on ultrasonic dispersing machine, dispersion temperature 300
DEG C, jitter time is 30 minutes；
Step3, the mixed material that step 2 is obtained is using high-speed shearing machine in 150-160 DEG C, 8000-9000 revs/min of shearing
Speed down cut disperses 40-60 minutes；
Step4, the mixed material that step 3 obtains is ground, is ground to fineness≤30 μm, is refiltered, that is, obtains finished product.
2. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, the composite inorganic pigment includes nano oxidized iron pigment or nanometer titanium dioxide, the nano oxidized iron pigment bag
Include nano oxidized cologne earth, nano-sized black iron oxide, nano iron oxide yellow and it is nanometer iron oxide red in one kind.
3. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, the curing agent is polymerization macromolecule amine reagent.
4. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, the adhesion promoter is compound bifunctional silane.
5. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, the viscosity adjustment solvent is one kind in toluene, dimethylbenzene, trimethylbenzene, butyl acetate, polyethylene glycol, dichloroethanes
Or more than one.
6. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, the dispersant is lignin sulfonate, sulfonated polystyrene, PVP and polyacrylic acid by 8:5:1:
1 ratio mixes.
7. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, one or more kinds of combinations that the levelling agent is selected in acrylic resin, Lauxite and melamine resin.
8. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, the defoamer is Silica hydrogel.
9. a kind of preparation method of the special high temperature resistant high adsorption coating of die casting according to claim 1, its feature
It is, the auxiliary agent is that polymeric acrylic acid esters flow control agent and benzoin class degasser press 1:2 ratio mixes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711073153.9A CN107815217A (en) | 2017-11-04 | 2017-11-04 | A kind of preparation method of the special high temperature resistant high adsorption coating of die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711073153.9A CN107815217A (en) | 2017-11-04 | 2017-11-04 | A kind of preparation method of the special high temperature resistant high adsorption coating of die casting |
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| Publication Number | Publication Date |
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| CN107815217A true CN107815217A (en) | 2018-03-20 |
Family
ID=61603770
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| CN201711073153.9A Pending CN107815217A (en) | 2017-11-04 | 2017-11-04 | A kind of preparation method of the special high temperature resistant high adsorption coating of die casting |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773151A (en) * | 2014-02-10 | 2014-05-07 | 南通新昱化工有限公司 | High temperature resistance acid-proof alkali-proof coating |
| CN104312411A (en) * | 2014-10-20 | 2015-01-28 | 芜湖县双宝建材有限公司 | Waterproof high-hardness waterborne polyurethane coating |
| CN105368309A (en) * | 2015-11-17 | 2016-03-02 | 国网河南省电力公司周口供电公司 | High temperature resistant and wear resistant ultrahigh voltage insulation coating and preparation method thereof |
-
2017
- 2017-11-04 CN CN201711073153.9A patent/CN107815217A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773151A (en) * | 2014-02-10 | 2014-05-07 | 南通新昱化工有限公司 | High temperature resistance acid-proof alkali-proof coating |
| CN104312411A (en) * | 2014-10-20 | 2015-01-28 | 芜湖县双宝建材有限公司 | Waterproof high-hardness waterborne polyurethane coating |
| CN105368309A (en) * | 2015-11-17 | 2016-03-02 | 国网河南省电力公司周口供电公司 | High temperature resistant and wear resistant ultrahigh voltage insulation coating and preparation method thereof |
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Application publication date: 20180320 |