CN102643603B - High-temperature-resistance insulation liquid coating and coating method thereof - Google Patents
High-temperature-resistance insulation liquid coating and coating method thereof Download PDFInfo
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- CN102643603B CN102643603B CN201210141714.5A CN201210141714A CN102643603B CN 102643603 B CN102643603 B CN 102643603B CN 201210141714 A CN201210141714 A CN 201210141714A CN 102643603 B CN102643603 B CN 102643603B
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Abstract
The invention relates to a high-temperature-resistance insulation liquid coating and a coating method thereof. The high-temperature-resistance insulation liquid coating is composed of insulating resins, diluents and fillers, wherein the insulating resins and the diluents are evenly mixed according to viscosity of 2cp-6cp, and the coating method includes the following steps of: surface processing on products needing to be coated, coating product preheating, coating preparing, rotary coating, fake burning, truth burning, detection and the like. The high-temperature-resistance insulation liquid coating simultaneously has high temperature resistance and insulating effects, and surface of products coated with the coating can be well protected. Compared with the existing coating process, the coating process can greatly save time for manually placing components one by one, reduces investment cost of electro-coating devices and greatly improves production efficiency. 15 persons are required for coating 200 thousands of components in one day in the existing coating process, but only 2 persons are required for coating the same components of 45 thousands by using the high-temperature-resistance insulation liquid coating and the coating method thereof.
Description
Technical field
The present invention relates to a kind of technical field of coatings, be specifically related to a kind of high-temperature insulation liquid coating and spraying method thereof.
Background technology
Coating refers to coats the forming film under certain condition of body surface and the material of one-tenth liquid or solid that plays protection, decoration or other functions (as insulation, waterproof, antirust, mildew-resistant, heat-resisting etc.), is commonly used to building, furniture, electrical equipment, multiplexer part etc. and other fields of being correlated with.The effect of coating is mainly protection, decorative product and covers up the defect of product.
Coating of a great variety, classify by the property of coating, can be divided into: waterproof paint, frie retardant coating, mould-repellant coating, insecticidal coating, sound absorption or deadener, heat insulating coatings, radiation shielding coating, antifogging coating, rust proof paint, high-temperature resistant coating insulation compound etc.Existing insullac can not have well heat-resisting and insulation effect concurrently simultaneously, causes by sprayed product overall performance not ideal enough; On the other hand, existing coating insullac method normally adopts conventional epoxy to spray or electrophoretic painting, but its coating member all needs workman single fixing one by one, and production efficiency is low, artificial and equipment cost is high.
Summary of the invention
For overcoming the defect of prior art, the object of the present invention is to provide a kind of high-temperature insulation liquid coating, having high temperature resistant and insulativity simultaneously concurrently.
Another object of the present invention is to the spraying method that a kind of high-temperature insulation liquid coating is provided, once can spray up to ten thousand parts simultaneously, greatly save artificial and equipment cost, enhance productivity.
The technical solution adopted in the present invention is as follows for achieving the above object:
A kind of high-temperature insulation liquid coating, it is made up of a) insulating resin, b) thinner and c) weighting agent, and a) insulating resin and b) thinner are that 2cp-6cp mixes according to dope viscosity value; Wherein
A) insulating resin is made up of following component by weight percentage: amide-imide resin 30%-50%, N-methyl alcohol-2-Pyrrolidone 40%-60%, colour masterbatch 5-10%;
B) thinner is made up of following component by weight percentage: ethyl acetate 40-50%, butanone 10-20%, pyrrolidone 30-50%;
C) weighting agent is tetrafluoroethylene, and consumption is the 1-3% of insulating resin and thinner gross weight.
Preferably, component a) insulating resin and components b in the present invention) thinner dope viscosity value is that 3cp-5cp mixes.
In the present invention, component a) insulating resin is made up of following component by weight percentage: amide-imide resin 40%, N-methyl alcohol-2-Pyrrolidone 50%, colour masterbatch 10%;
B) thinner is made up of following component by weight percentage: ethyl acetate 40%, butanone 20%, pyrrolidone 40%.
A spraying method for high-temperature insulation liquid coating insulation compound, it carries out according to following steps:
1) sprayed product surface treatment is needed;
2) sprayed product preheating: to the product preheating needing spraying, put into application basket after preheated;
3) coating is in harmonious proportion: insulating resin, thinner and weighting agent are mixed according to the viscosity criterion of setting;
4) turn round application: setting spraying vapour pressure, spray time and quantity for spray, put into quartz ball being equipped with in the application basket needing sprayed product, to needing sprayed product to carry out rotary coating, rotary coating adds heating duct simultaneously and heats needing sprayed product;
5) false burning: burning needing sprayed product to carry out vacation after rotary coating completes, measuring spraying paint thickness, determining whether need to repeat above-mentioned 4th step according to setting paint film thickness; Wherein the setting thickness of paint film sets according to the thickness of customer requirement;
6) this burning: if paint film thickness reaches set(ting)value again to needing sprayed product carry out this burning;
7) detect: detecting needing sprayed product according to the insulation resistance to compression value of setting and application apparent size standard, being up to standardly qualified product.
Step 2) in, preheating temperature controls at 150-180 DEG C, and warm up time is 5-15 minute.
In step 3), insulating resin thinner is that 2cp-6cp mixes according to dope viscosity value; Wherein
A) insulating resin is made up of following component by weight percentage: amide-imide resin 30%-50%, N-methyl alcohol-2-Pyrrolidone 40%-60%, colour masterbatch 5-10%;
B) thinner is made up of following component by weight percentage: ethyl acetate 40-50%, butanone 10-20%, pyrrolidone 30-50%;
C) weighting agent is tetrafluoroethylene, and consumption is the 1-3% of insulating resin and thinner gross weight.
In step 4) described in aforesaid method, setting spraying vapour pressure be 0.2-0.4MPA, spray time is 10-30 minute, and quantity for spray is 2.3-2.5G/Min, application basket speed of rotation be 11-12 second/often enclose, the quartz ball particle diameter that application basket is put into simultaneously is 1.5-2.0MM.Determine the size of quartz ball according to the size/weight of sprayed product in the present invention and occupy part by weight, preferably, every 12500 application element put into 150G quartz ball.
In step 5) described in aforesaid method, false temperature of burning is 150-180 DEG C, and the false burning time is 5-15 minute.
In step 6) described in aforesaid method, the temperature of this burning is 200-250 DEG C, time 30-50 minute.
In step 7) described in aforesaid method, insulation resistance to compression value is 200-250V, 5-15 megaohm.
Compared to existing technology, beneficial effect of the present invention is: high-temperature insulation liquid coating of the present invention has high temperature resistant and insulation effect concurrently simultaneously, and the product surface of this coating spray coated can well be protected.Spraying coating process of the present invention compares existing coating process, greatly can save the time of manually putting component one by one and the cost of investment reducing electrophoretic painting equipment, greatly enhance productivity.Parts application in a day 200,000 needs 15 people that existing electrophoresis coating technique is same, but this coating adds this coating process application in a day 450,000 only needs 2 people.
Below in conjunction with concrete embodiment, the present invention is described in further detail.
Embodiment
Embodiment 1
A kind of high-temperature insulation liquid coating, by a) insulating resin, b) thinner and c) weighting agent form, a) insulating resin and b) thinner are that 2cp mixes according to dope viscosity value; Wherein
A) insulating resin is made up of following component by weight percentage: amide-imide resin 30%, N-methyl alcohol-2-Pyrrolidone 60%, colour masterbatch 10%;
B) thinner is made up of following component by weight percentage: ethyl acetate 40%, butanone 10%, pyrrolidone 50%;
C) weighting agent is tetrafluoroethylene, and consumption is 1% of insulating resin and thinner gross weight;
Carry out according to following steps: first to needing sprayed product surface to clean or sandblasting, 150 DEG C of preheatings 15 minutes, after preheated, put into application basket; Above-mentioned insulating resin, thinner and weighting agent are mixed; Setting spraying vapour pressure is 0.2MPa, spray time is 10 minutes, and quantity for spray is 2.3G/Min, puts into the quartz ball that particle diameter is 1.5MM being equipped with in the application basket needing sprayed product, to needing sprayed product to carry out rotary coating, speed of rotation is 12 seconds/often enclose; Simultaneously to the heating duct heating needing sprayed product to carry out 60-100 degree, after rotary coating completes, to needing, sprayed product is false at 150 DEG C burns 15 minutes, measures spraying paint thickness, determines whether need to repeat above-mentioned 4th step according to setting paint film thickness; Wherein the setting thickness of paint film sets according to the thickness of customer requirement; If paint film thickness reaches set(ting)value again to needing sprayed product this burning at 200 DEG C; Detecting needing sprayed product according to the insulation resistance to compression value of setting and application apparent size standard, being up to standardly qualified product.
Embodiment 2
A kind of high-temperature insulation liquid coating, by a) insulating resin, b) thinner and c) weighting agent form, a) insulating resin and b) thinner are that 2cp mixes according to dope viscosity value; Wherein
A) insulating resin is made up of following component by weight percentage: amide-imide resin 40%, N-methyl alcohol-2-Pyrrolidone 50%, colour masterbatch 10%;
B) thinner is made up of following component by weight percentage: ethyl acetate 40%, butanone 20%, pyrrolidone 40%;
C) weighting agent is tetrafluoroethylene, and consumption is 2% of insulating resin and thinner gross weight;
Carry out according to following steps: first to needing sprayed product surface to clean or sandblasting, 150 DEG C of preheatings 10 minutes, after preheated, put into application basket; Above-mentioned insulating resin, thinner and weighting agent are mixed; Setting spraying vapour pressure is 0.4MPa, spray time is 20 minutes, and quantity for spray is 2.4G/Min, put into the quartz ball that particle diameter is 2.0MM being equipped with in the application basket needing sprayed product, rotary coating is carried out to needing sprayed product, speed of rotation is 12 seconds/often encloses, sprayed product is carried out to the heating duct heating of 60-100 degree simultaneously; After rotary coating completes, to needing, sprayed product is false at 170 DEG C burns 10 minutes, measures spraying paint thickness, determines whether need to repeat above-mentioned 4th step according to setting paint film thickness; Wherein the setting thickness of paint film sets according to the thickness of customer requirement; If paint film thickness reaches set(ting)value again to needing sprayed product this burning at 220 DEG C; Detecting needing sprayed product according to the insulation resistance to compression value of setting and application apparent size standard, being up to standardly qualified product.
Embodiment 3
A kind of high-temperature insulation liquid coating, by a) insulating resin, b) thinner and c) weighting agent form, a) insulating resin and b) thinner are that 2cp mixes according to dope viscosity value; Wherein
A) insulating resin is made up of following component by weight percentage: amide-imide resin 50%, N-methyl alcohol-2-Pyrrolidone 45%, colour masterbatch 5%;
B) thinner is made up of following component by weight percentage: ethyl acetate 50%, butanone 20%, pyrrolidone 30%;
C) weighting agent is tetrafluoroethylene, and consumption is 3% of insulating resin and thinner gross weight;
Carry out according to following steps: first to needing sprayed product surface to clean or sandblasting, 180 DEG C of preheatings 5 minutes, after preheated, put into application basket; Above-mentioned insulating resin, thinner and weighting agent are mixed; Setting spraying vapour pressure is 0.2MPa, spray time is 30 minutes, and quantity for spray is 2.4G/Min, puts into the quartz ball that particle diameter is 2MM being equipped with in the application basket needing sprayed product, to needing sprayed product to carry out rotary coating, speed of rotation is 12 seconds/often enclose; After rotary coating completes, to needing, sprayed product is false at 180 DEG C burns 5 minutes, measures spraying paint thickness, determines whether need to repeat above-mentioned 4th step according to setting paint film thickness; Wherein the setting thickness of paint film sets according to the thickness of customer requirement; If paint film thickness reaches set(ting)value again to needing sprayed product this burning at 250 DEG C; Detecting needing sprayed product according to the insulation resistance to compression value of setting and application apparent size standard, being up to standardly qualified product.
Above-described embodiment is only preferred case study on implementation of the present invention can not with this to limit protection scope of the present invention, and the change of any unsubstantiality that those skilled in the art does on the basis of invention is changed and replaced and all belongs to the present invention's scope required for protection.
Claims (2)
1. the spraying method of a high-temperature insulation liquid coating: it is characterized in that it carries out according to following steps:
1) sprayed product surface treatment is needed;
2) sprayed product preheating: to the product preheating needing spraying, preheating temperature controls at 150-180 DEG C, and warm up time is 5-15 minute, puts into application basket after preheated;
3) coating is in harmonious proportion: be that 2cp-6cp mix by insulating resin, thinner and weighting agent according to dope viscosity value according to the viscosity criterion of setting; Wherein
A) insulating resin is made up of following component by weight percentage: amide-imide resin 30%-50%, N-methyl alcohol-2-Pyrrolidone 40%-60%, colour masterbatch 5-10%;
B) thinner is made up of following component by weight percentage: ethyl acetate 40-50%, butanone 10-20%, pyrrolidone 30-50%;
C) weighting agent is tetrafluoroethylene, and consumption is the 1-3% of insulating resin and thinner gross weight;
4) application is turned round: setting spraying air pressure is 0.2-0.4MPa, spray time is 10-30 minute, quantity for spray is 2.3-2.5g/min, put into the quartz ball that particle diameter is 1.5-2.0mm being equipped with in the application basket needing sprayed product, application basket speed of rotation be 11-12 second/often enclose, to needing sprayed product to carry out rotary coating, rotary coating adds heating duct simultaneously and heats needing sprayed product;
5) false burning: burn needing sprayed product to carry out vacation after rotary coating completes, false temperature of burning is 150-180 DEG C, and the false burning time is 5-15 minute, measures spraying paint thickness, determines whether need to repeat above-mentioned 4th step according to setting paint film thickness;
6) this burning: if paint film thickness reaches set(ting)value again to needing sprayed product carry out this burning, the temperature of this burning is 200-250 DEG C, time 30-40 minute;
7) detect: detecting needing sprayed product according to the insulation resistance to compression value of setting and application apparent size standard, being up to standardly qualified product.
2. the spraying method of high-temperature insulation liquid coating according to claim 1, is characterized in that: in step 7), and insulation resistance to compression value is 200-250V, 5-15 megaohm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210141714.5A CN102643603B (en) | 2012-05-09 | 2012-05-09 | High-temperature-resistance insulation liquid coating and coating method thereof |
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| CN201210141714.5A CN102643603B (en) | 2012-05-09 | 2012-05-09 | High-temperature-resistance insulation liquid coating and coating method thereof |
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| CN102643603B true CN102643603B (en) | 2015-04-01 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104438011A (en) * | 2013-09-25 | 2015-03-25 | 深圳市东浩源机电科技有限公司 | Coating method for insulating paint resistant to high temperature |
| CN104167332B (en) * | 2014-06-23 | 2016-01-20 | 浙江朗万电气科技有限公司 | A kind of domestic intelligent circuit breaker |
| CN107611844B (en) * | 2017-09-28 | 2020-05-01 | 国网智能科技股份有限公司 | Overhead line insulation coating robot system and control method thereof |
| CN111715469A (en) * | 2020-06-20 | 2020-09-29 | 烟台博昌汽车标准件有限公司 | High-strength automobile zinc-aluminum coating device and process |
| CN111995911A (en) * | 2020-08-31 | 2020-11-27 | 青岛格林沃德新材料科技有限公司 | Temperature-resistant coating and production process thereof |
| CN112138966A (en) * | 2020-09-14 | 2020-12-29 | 中核核电运行管理有限公司 | Method for improving insulating property of sealing gasket |
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| CN1450139A (en) * | 2003-04-21 | 2003-10-22 | 上海高分子材料研究开发中心 | High-temp thixotropy resistant polyimide based corrosion-resisting lubricating coating |
| CN101048483A (en) * | 2004-10-27 | 2007-10-03 | 株式会社丰田自动织机 | Sliding member and process for producing sliding member |
| CN101798485A (en) * | 2009-02-11 | 2010-08-11 | 福州大通机电有限公司 | Lubricant modified polyamide imide wire enamel and method for manufacturing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101524681A (en) * | 2009-04-10 | 2009-09-09 | 江苏欧赛德钢涂有限公司 | Method for manufacturing insulating and corrosion-resisting reinforcing steel bar |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450139A (en) * | 2003-04-21 | 2003-10-22 | 上海高分子材料研究开发中心 | High-temp thixotropy resistant polyimide based corrosion-resisting lubricating coating |
| CN101048483A (en) * | 2004-10-27 | 2007-10-03 | 株式会社丰田自动织机 | Sliding member and process for producing sliding member |
| CN101798485A (en) * | 2009-02-11 | 2010-08-11 | 福州大通机电有限公司 | Lubricant modified polyamide imide wire enamel and method for manufacturing same |
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