CN109735226B - Coating material for light alloy pulping and preparation method thereof - Google Patents
Coating material for light alloy pulping and preparation method thereof Download PDFInfo
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- CN109735226B CN109735226B CN201811531055.XA CN201811531055A CN109735226B CN 109735226 B CN109735226 B CN 109735226B CN 201811531055 A CN201811531055 A CN 201811531055A CN 109735226 B CN109735226 B CN 109735226B
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- 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
- C09D133/00—Coating compositions 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/24—Homopolymers or copolymers of amides or imides
- C09D133/26—Homopolymers or copolymers of acrylamide or methacrylamide
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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
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- C09D139/00—Coating compositions 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 a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Coating compositions based on derivatives of such polymers
- C09D139/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C09D139/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- 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
- C09D7/63—Additives non-macromolecular organic
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- 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
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Abstract
The invention discloses a coating material for light alloy pulping, which comprises the following components in percentage by weight: 7-10 parts of modified dimethyl silicone oil, 8-15 parts of anionic and nonionic surface active complexing agents, 0.5-1 part of auxiliary emulsifying agent, 0.2-0.4 part of water-soluble polymer, 1.5-3 parts of regulator and 1-2 parts of defoaming agent. The coating material for light alloy pulping has good high-temperature wettability and film forming property, and even if the stirring rod is coated with the coating agent at high temperature (350 ℃), a layer of uniform film with high temperature resistance, erosion resistance and micron-sized thickness can be formed on the surface of the stirring rod, so that the impact of light alloy liquid on the stirring rod in the process of preparing semi-solid light alloy pulp is greatly reduced, the loss of a pulping device is reduced, and the service life is prolonged.
Description
Technical Field
The invention relates to the field of casting, in particular to a high-performance coating material of a light alloy semi-solid pulping device and a preparation method thereof.
Background
The traditional method adopts mechanical stirring to prepare semi-solid light alloy slurry, in the process of preparing the slurry, a manipulator soup ladle scoops light alloy liquid and then rises to a preset position, a stirring rod stirs the light alloy liquid in the soup ladle according to set parameters, after the stirring is finished, the manipulator soup ladle sends the slurry to a pressure chamber for material pouring and die casting, meanwhile, the stirring rod removes aluminum slag (aluminum oxide) adhered to the surface through a waste material treatment device, a covering agent storage device is reset after a covering agent is coated, and the next production cycle is started. The traditional coating agent has the disadvantages of no high temperature resistance, poor coating effect and poor protection for a stirring rod. Because the temperature of the light alloy liquid is very high, the stirring rod bears high temperature for a long time in the slurry preparation process, the surface coating agent is absorbed by the light alloy liquid, the stirring rod is gradually eroded, the surface is seriously adhered with aluminum, the service life of the stirring rod is shortened, the automatic production beat is interrupted, the purity of the prepared semi-solid alloy slurry can be polluted, and the product quality is finally influenced.
Therefore, providing a high-temperature resistant coating material is an urgent technical problem to be solved in the casting field.
Disclosure of Invention
The present invention is directed to solving the problems described above. The invention aims to provide a high-temperature-resistant coating material which can be used in the field of alloy pulping, reduces the loss of a pulping device and prolongs the service life of the pulping device.
According to one aspect of the invention, the coating material for light alloy pulping comprises the following components in percentage by weight:
optionally, the coating material for pulping the light alloy contains the following components, and the content of each component is expressed as follows:
optionally, the coating material for pulping the light alloy contains the following components, and the content of each component is expressed as follows:
optionally, the anionic and nonionic surfactant complexing agent is one or more of fatty ammonium salt, sulfate ester salt, ethylene oxide or propylene oxide derivative.
Optionally, the auxiliary emulsifier is one or more of octoxynol, sorbitan monostearate or condensation product of alkylphenol and ethylene oxide.
Alternatively, the water soluble polymer is a mixture of anionic polyacrylamide and polyvinylpyrrolidone.
Alternatively, the modifier is an organic acid.
Optionally, the regulator is one or more of oxalic acid, acetic acid and citric acid.
Optionally, the defoaming agent is one or more of high carbon fatty acid terminated polyether ester, high carbon alcohol and high carbon fatty acid ester
According to another aspect of the present invention, there is provided a method for preparing a clad material for light alloy pulping, comprising the steps of: 1S modified dimethyl silicone oil, anionic and nonionic surface active complexing agents, auxiliary emulsifying agents, water-soluble polymers, conditioning agents and defoaming agents are prepared. 2S adding the anionic and nonionic surface active complexing agents into the water-soluble polymer and stirring for 10-20 minutes. And 3S, adding the modified dimethyl silicone oil, the auxiliary emulsifier and the defoaming agent into the solution obtained in the step 2S, stirring for 10-30 minutes, and setting the stirring temperature to be 45-60 ℃. And 4S, adding the regulator into the solution obtained in the step 3S, stirring at the temperature of 20-25 ℃, stopping stirring when the solution becomes a uniform and transparent emulsion, and setting the stirring time to be 60-80 minutes. And 5S, measuring the pH value of the emulsion obtained in the step 4S, wherein the pH value of the emulsion is 7-8.5, and obtaining the coating material for light alloy pulping.
Optionally, step 3S is performed under constant temperature water bath condition, wherein the temperature of the water bath is 45-60 ℃.
The coating material for light alloy pulping is prepared by mixing modified dimethyl silicone oil, anionic and nonionic surface active complexing agents, auxiliary emulsifying agents, water-soluble polymers, regulators and defoaming agents, and does not contain any harmful components such as mineral oil, vaseline and the like.
The modified dimethyl silicone oil is used as a main component of the coating material for light alloy pulping, and compared with the traditional mineral oil, the modified dimethyl silicone oil has the advantages of good solubility, high temperature resistance and high lubricating property, and is selected by 7-10 parts by weight.
The main emulsifier is anionic and nonionic surface active compound, 8-15 parts. Compared with a single emulsifier in the traditional release agent, the anionic and nonionic surfactant complexing agent can avoid the corrosion of an acidic medium required by the cationic surfactant to metal, and the coating agent prepared by the composite emulsifier is easy to emulsify, small in emulsion particle size and good in stability.
0.5-1 part of auxiliary emulsifier, and the addition of a small amount of auxiliary emulsifier can properly reduce the dosage of the main emulsifier and improve the emulsifying effect.
0.2-0.4 part of water-soluble polymer, and a small amount of water-soluble polymer is added to reduce the critical micelle concentration of the anionic surfactant in the emulsion, so that the water-soluble polymer is adsorbed on the surface of the micelle to resist agglomeration, the viscosity of the emulsion can be properly increased, the movement rate of liquid drops is reduced, the half-life period of the liquid drops is longer, and the stability of the emulsion is improved.
1.5-3 parts of regulator, and adding a small amount of regulator to make the pH value of the emulsion be neutral or weakly alkaline. Avoid the growth of the emulsion bacterium to reduce the life cycle and the corrosion to the stirring rod, and increase the service life of the stirring rod.
And 1-2 parts of defoaming agent, wherein a small amount of defoaming agent is added to avoid forming foam in the emulsion, and the foam can be adsorbed on a foam film to destroy the uniformity of the film, so that the surface of the stirring rod is not uniformly covered.
The coating material for light alloy pulping has the beneficial effects that:
1. the coating material for light alloy pulping has high stability, and the stock solution has no phenomena of delamination, foam or sediment under the condition of (30 +/-2 ℃) for 30 days by a CIPAC MT 36 detection method.
2. The coating material for light alloy pulping of the invention has good shear stability and high defoaming property, and after the emulsion is diluted by 40 times, the emulsion is stirred for 30min at 3000r/min in a high-speed stirrer without the phenomena of layering, precipitation and foaming.
3. The coating material for light alloy pulping has good high-temperature wettability and film forming property, and even if the stirring rod is coated with the coating agent at high temperature (350 ℃), a layer of uniform film with high temperature resistance, erosion resistance and micron-sized thickness can be formed on the surface of the stirring rod, so that the impact of light alloy liquid on the stirring rod in the process of preparing semi-solid light alloy pulp is greatly reduced, the loss of a pulping device is reduced, and the service life is prolonged.
4. The coating material for light alloy pulping of the invention has no toxic component and no pungent smell, and does not produce toxic and harmful gas in the production process, and the prepared semi-solid slurry is clean and pollution-free.
5. The coating material for light alloy pulping has excellent coating performance, 3000-module products, namely surface corrosion scrapping, are produced by adopting a hot-working steel H13 material in a traditional stirring rod, and the service life of the stirring rod coated by the coating material reaches 10000 modules.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the preparation of the coating material for light alloy pulping of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The coating material for light alloy pulping of the invention comprises 7 to 10 weight portions of modified dimethyl silicone oil, 8 to 15 weight portions of anionic and nonionic surface active complex agent, 0.5 to 1 weight portion of auxiliary emulsifier, 0.2 to 0.4 weight portion of water-soluble polymer, 1.5 to 3 weight portions of regulator and 1 to 2 weight portions of defoaming agent.
The coating material for light alloy pulping is characterized in that an anionic and nonionic surface active complexing agent in the coating material for light alloy pulping is an EO/PO derivative, a coemulsifier is Span60, a water-soluble polymer is a mixture prepared from anionic polyacrylamide and polyvinylpyrrolidone according to a mass ratio of 1:1, a regulator is oxalic acid, a defoaming agent is a mixture prepared from high-carbon fatty acid terminated polyether ester, high-carbon alcohol and high-carbon fatty acid ester according to a mass ratio of 1:1: 1.
As shown in FIG. 1, the preparation method of the coating material for light alloy pulping comprises the following steps:
1S modified dimethyl silicone oil, anionic and nonionic surface active complexing agents, auxiliary emulsifying agents, water-soluble polymers, conditioning agents and defoaming agents are prepared.
2S adding the anionic and nonionic surface active complexing agents into the water-soluble polymer and stirring for 10-20 minutes.
And 3S, adding the modified dimethyl silicone oil, the auxiliary emulsifier and the defoaming agent into the solution obtained in the step 2S, and stirring together in a constant-temperature water bath for 10-30 minutes at the water bath temperature of 45-60 ℃.
And 4S, adding the regulator into the solution obtained in the step 3S, stirring at the temperature of 20-25 ℃, stopping stirring when the solution becomes a uniform and transparent emulsion, and setting the stirring time to be 60-80 minutes.
And 5S, measuring the pH value of the emulsion obtained in the step 4S, wherein the pH value of the emulsion is 7-8.5, and obtaining the coating material for light alloy pulping.
The coating material for light alloy pulping provided by the present invention will be explained in detail by way of specific examples
Example 1
The coating material for light alloy pulping contains the following components in percentage by weight
The following were used:
the coating material for light alloy pulping of the example 1 has excellent high-temperature wettability, and a coating stirring rod can quickly form a uniform film with high-temperature resistance, erosion resistance and micron-sized thickness at the temperature of 450 ℃.
Example 2
The coating material for pulping the light alloy contains the following components in percentage by weight:
the coating material for light alloy pulping in the embodiment 2 has excellent corrosion resistance, the using frequency of the stirring rod is improved, a traditional stirring rod adopts a hot-working steel H13 material to produce 3000-mode products, namely surface corrosion scrapping, and the service life of the stirring rod coated with the coating material in the embodiment 2 is up to 11000-mode products.
Example 3
The coating material for pulping the light alloy contains the following components in percentage by weight:
the coating material for light alloy pulping of example 3 has the best film forming property, the bubble content is 0.2%, and the protective film formed on the stirring rod is compact and uniform.
The parameters of the cladding material for light alloy pulping of different compositions in some of the examples of the invention are shown further below by way of a table. Table 1 is a table of the performance parameters of the clad material of the light alloy slurry of the present invention.
TABLE 1
It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The above embodiments are merely to illustrate the technical solutions of the present invention and not to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made without departing from the spirit and scope of the present invention and it should be understood that the present invention is to be covered by the appended claims.
Claims (9)
1. The coating material for light alloy pulping comprises the following components in percentage by weight:
the anionic and nonionic surface active complexing agents are sulfate ester salts and ethylene oxide derivatives; or the anionic and nonionic surface active complexing agent is sulfate and epoxypropane derivative; or the anionic and nonionic surface active complexing agents are sulfate ester salts, ethylene oxide derivatives and propylene oxide derivatives.
2. The coating material for light alloy pulping according to claim 1, wherein the coating material for light alloy pulping contains the following components in the following content:
3. the coating material for light alloy pulping according to claim 1, wherein the coating material for light alloy pulping contains the following components in the following content:
4. the covering material for pulping light alloy according to any one of claims 1 to 3, wherein the auxiliary emulsifier is one or more of octoxynol, sorbitan monostearate or a condensate of alkylphenol and ethylene oxide.
5. The covering material for pulping light alloys according to claim 4, wherein the water-soluble polymer is a mixture of anionic polyacrylamide and polyvinylpyrrolidone.
6. The coating material for pulping light alloys according to claim 5, wherein the modifier is an organic acid.
7. The coating material for pulping light alloy according to claim 6, wherein the defoaming agent is one or more of high-carbon fatty acid terminated polyether ester, high-carbon alcohol and high-carbon fatty acid ester.
8. A method for preparing a cladding material for pulping light alloy according to claim 1, which comprises the following steps:
1S, preparing modified dimethyl silicone oil, an anionic and nonionic surface active complexing agent, a co-emulsifier, a water-soluble polymer, a regulator and a defoaming agent;
2S, adding the anionic and nonionic surface active complexing agents into the water-soluble polymer, and stirring for 10-20 minutes;
3S, adding the modified dimethyl silicone oil, the auxiliary emulsifier and the defoaming agent into the solution obtained in the step 2S, stirring for 10-30 minutes, and setting the stirring temperature to be 45-60 ℃;
4S, adding the regulator into the solution obtained in the step 3S, stirring at the temperature of 20-25 ℃, stopping stirring when the solution becomes a uniform and transparent emulsion, and setting the stirring time to be 60-80 minutes;
and 5S, measuring the pH value of the emulsion obtained in the step 4S, wherein the pH value of the emulsion is 7-8.5, and obtaining the coating material for light alloy pulping.
9. The method for preparing the covering material for light alloy pulping according to claim 8, wherein the step 3S is carried out under the condition of constant temperature water bath, and the temperature of the water bath is 45-60 ℃.
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| CN201811531055.XA CN109735226B (en) | 2018-12-14 | 2018-12-14 | Coating material for light alloy pulping and preparation method thereof |
| PCT/CN2019/125179 WO2020119787A1 (en) | 2018-12-14 | 2019-12-13 | Coated material for light alloy pulping and preparation method therefor |
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| CN201811531055.XA CN109735226B (en) | 2018-12-14 | 2018-12-14 | Coating material for light alloy pulping and preparation method thereof |
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| JP2005290096A (en) * | 2004-03-31 | 2005-10-20 | Japan Beauty Products:Kk | Gloss-giving composition |
| CN1699480A (en) * | 2005-06-09 | 2005-11-23 | 上海交通大学 | Method for dispersion of inorganic pigment with high-temperature stability in oily medium |
| CN105453202A (en) * | 2013-09-11 | 2016-03-30 | 株式会社Uacj | Coated aluminum material for capacitor case |
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| CN1181146C (en) * | 2002-11-20 | 2004-12-22 | 广州擎天新材料研究开发有限公司 | Preparation method of covering emulsion used in water printing ink |
| KR101431416B1 (en) * | 2011-06-17 | 2014-08-19 | 신닛테츠스미킨 카부시키카이샤 | Surface-treated metal and method for producing same |
| CN107663414A (en) * | 2016-07-29 | 2018-02-06 | 陈刚 | A kind of automobile-used atom crystalline substance plated film body lotion and preparation method thereof |
| CN106634163A (en) * | 2016-12-09 | 2017-05-10 | 深圳市合明科技有限公司 | Water-based cleaning agent, preparation method thereof and PCB ink cleaning method |
| CN107779031B (en) * | 2017-10-16 | 2020-07-31 | 广州大学 | Low-adhesion antifouling smooth coating prepared by emulsion system without any organic solvent |
| CN109735226B (en) * | 2018-12-14 | 2020-08-14 | 珠海市润星泰电器有限公司 | Coating material for light alloy pulping and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005290096A (en) * | 2004-03-31 | 2005-10-20 | Japan Beauty Products:Kk | Gloss-giving composition |
| CN1699480A (en) * | 2005-06-09 | 2005-11-23 | 上海交通大学 | Method for dispersion of inorganic pigment with high-temperature stability in oily medium |
| CN105453202A (en) * | 2013-09-11 | 2016-03-30 | 株式会社Uacj | Coated aluminum material for capacitor case |
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