CN101840757A - Manufacturing method for environment-friendly type insulator shell - Google Patents
Manufacturing method for environment-friendly type insulator shell Download PDFInfo
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- CN101840757A CN101840757A CN201010178761A CN201010178761A CN101840757A CN 101840757 A CN101840757 A CN 101840757A CN 201010178761 A CN201010178761 A CN 201010178761A CN 201010178761 A CN201010178761 A CN 201010178761A CN 101840757 A CN101840757 A CN 101840757A
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Abstract
The invention relates to a manufacturing method for an environment-friendly type insulator shell, comprising the following steps: firstly mixing the following components uniformly in parts by weight: 100 parts of modified BPA epoxy resin, 280-310 parts of silica powder, 100 parts of curing agent, 40-45 parts of dark color paste and 40-60 parts of fire retardant, and degassing for 1.5-2 hours under the vacuum degree of 0-minus1 MPa; then injecting the degassed mixture into a mold to conduct the primary curing, and curing for 30-40 minutes under the condition of 140 plus or minus 5 DEG C; demolding, conducting the secondary curing, and curing for 8 hours plus or minus 10 minutes under the condition of 128-135 DEG C; and finally, conducting finish machining on the blank after being cured secondarily. The Epoxy resin insulating component manufactured by the method has the advantages of high mechanical strength, strong arc resistance, high compactness, bright and clean surface, better cold-resistant and heat-resistant properties, good electrical insulating property and the like, is widely applied in the power sector, and mainly plays a role in supporting and insulating.
Description
Technical field
The present invention relates to a kind of making of insulator shell, especially a kind of manufacture method of environment friendly insulator housing belongs to field of polymer material processing technology.
Background technology
Current, the porcelain insulator housing that China's tradition is used is lost its leading position just gradually.Because homemade porcelain insulator housing deterioration rate and self-destruction rate are higher, with the very big gap of product existence of external famous insulator manufacturer, porcelain, glass insulator product that a large amount of deterioration rates and self-destruction rate are lower need rely on import.In recent years, because the large tracts of land pollution flashover that ground such as pollution flashover accident, particularly East China, North China, northeast take place constantly takes place each big electrical network, provide good opportunity for applying the composite insulator housing again.
China brings into use poured with epoxy resin electric power mutual-inductor, insulating sleeve, high-voltage switch gear from middle 1960s, bead etc., oil-filled transformer is because the volume massiveness, replaced by the dry-type transformer with the poured with epoxy resin moulding gradually, the poured with epoxy resin moulding is widely used on the application technology of insulating material such as composite insulator.Epoxy resin is a kind of epoxy oligomer, can form three-dimensional netted thermoset plastics with the curing agent reaction.It is little to have in solidification process shrinkage as a kind of epoxy resin of liquid system, the characteristics of the cementability of its solidfied material, thermal endurance, chemical-resistant and mechanical performance, excellent electrical properties, be a bigger kind of application quantity in the thermosetting resin, its shortcoming is weatherability and poor toughness.
Summary of the invention
In order to overcome above defective, the technical problem to be solved in the present invention is: propose a kind of convenient environment friendly insulator manufacture of casing of producing, improving insulator shell anti-flammability, environmental protection, minimizing self-destruction.
The technical solution adopted in the present invention is: a kind of manufacture method of environment friendly insulator housing is characterized in that it is made up of following steps:
(1) modification BPA epoxy resin, silicon powder, curing agent, dark mill base and fire retardant are mixed vacuum degassing by weight ratio;
(2) mixed material after will outgasing injects mould, solidifies for the first time;
(3) demoulding is solidified for the second time;
(4) the stock fine finishining after the curing for the second time.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing comprises that further described curing agent is a modification liquid carboxylic acid acid anhydride.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing comprises that further described weight proportion is 100 parts of modification BPA epoxy resin, 280～310 parts of silicon powders, 100 parts in curing agent, 40～45 parts of dark mill bases.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing further comprises and also adds fire retardant in the described compound.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing comprises that further the ratio of quality and the number of copies of described fire retardant and modification BPA epoxy resin is 40～60: 100.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing comprises that further described fire retardant is a kind of in TCPP, TDCPP, IPPP, deca-BDE, DMMP, triphenyl phosphate or the TDE.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing further comprise described vacuum degassing be 0～-outgased 1.5～2 hours under the vacuum degree of 1MPa.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing comprises that further solidify the described first time is to solidify 30～40 minutes under 135～145 ℃ of conditions.
According to another preferred embodiment, a kind of manufacture method of environment friendly insulator housing comprises that further solidifying the described second time is to solidify 8 hours ± 10 minutes under 128～135 ℃ of conditions.
The invention has the beneficial effects as follows:
(1) owing to inject the difference of each set of dispense ratio of mould, directly influences the mechanical mechanics property and the electrical insulation capability of product, as hot strength, bending strength, impact strength, puncture voltage etc.The present invention reasonably materials selects and proportioning, and adopts suitable method of modifying to be overcome to a certain extent and improve, and mechanical mechanics property, electrical insulation capability and the flame retardant effect of product are improved greatly, and safety and environmental protection.
(2) the mixing of materials temperature must be suitable, and temperature is too low, and the mobile performance of material is bad, influences moulding; Solidifying required energy will be provided by mould, and temperature is too high, will the structure of mould be exerted an influence.Mold temperature also must be suitable, and temperature is too low, and it is not enough to solidify required energy; Temperature is too high, will gelatinization near the material of mold wall, cause product defects or can't the demoulding.The present invention selects specific temperature respectively for use in twice solidification process, can overcome above-mentioned defective.The temperature and time that solidifies for the second time particularly, whether the final performance that this directly has influence on product has defectives such as bubble or hole as product surface.
(3) the epoxy resins insulation spare mechanical strength height of making through the inventive method, arc resistance is strong, the compactness height, any surface finish has preferably cold resistance and has good thermal endurance, good advantages such as electrical insulation properties, very wide in the power industry application, mainly play and support and insulating effect.
Embodiment
The present invention is further detailed explanation in conjunction with the preferred embodiments now.
Embodiment 1
Take by weighing 1kg by weight ratio respectively and improve BPA epoxy resin, 2.8kg silicon powder, 1kg modification liquid carboxylic acid acid anhydride, the dark mill base of 400g, 400g fire retardant; Above-mentioned each material is mixed, after stirring, 0～-outgased 1.5 hours under the vacuum degree of 1MPa; Mixed material after the degassing is pressed in the mould, under 135～145 ℃ of ℃ of conditions, carries out solidifying 30 minutes time first time; The demoulding places the semi-finished product after the demoulding and carries out under 128～135 ℃ of conditions solidifying 8 hours ± 10 minutes time the second time; With the stock fine finishining after solidifying for the second time, make the product of design size.
Embodiment 2
Take by weighing 1kg by weight ratio respectively and improve BPA epoxy resin, 2.9kg silicon powder, 1kg modification liquid carboxylic acid acid anhydride, the dark mill base of 420g, 500g fire retardant; Above-mentioned each material is mixed, after stirring, 0～-outgased 1.8 hours under the vacuum degree of 1MPa; Mixed material after the degassing is pressed in the mould, under 135～145 ℃ of ℃ of conditions, carries out solidifying 35 minutes time first time; The demoulding places the semi-finished product after the demoulding and carries out under 128～135 ℃ of conditions solidifying 8 hours ± 10 minutes time the second time; With the stock fine finishining after solidifying for the second time, make the product of design size.
Embodiment 3
Take by weighing 1kg by weight ratio respectively and improve BPA epoxy resin, 3.1kg silicon powder, 1kg modification liquid carboxylic acid acid anhydride, the dark mill base of 450g, 600g fire retardant; Above-mentioned each material is mixed, after stirring, 0～-outgased 2 hours under the vacuum degree of 1MPa; Mixed material after the degassing is pressed in the mould, under 135～145 ℃ of ℃ of conditions, carries out solidifying 40 minutes time first time; The demoulding places the semi-finished product after the demoulding and carries out under 128～135 ℃ of conditions solidifying 8 hours ± 10 minutes time the second time; With the stock fine finishining after solidifying for the second time, make the product of design size.
The environment friendly insulator composite performance that embodiment 1-3 prepares is as follows:
| Project | Example 1 | Example 2 | Embodiment 3 |
| Impact strength (room temperature, unit: KJ/m2) | ??10 | ??15 | ??18 |
| Bending strength (room temperature, unit: Mpa) | ??100 | ??130 | ??150 |
| Tensile strength (room temperature, unit: Mpa) | ??70 | ??74 | ??78 |
| Dielectric strength (room temperature, unit: KV/mm) | ??20 | ??24 | ??28 |
| Insulation resistance (normality, unit: Ω) | ??1.0x10 13 | ??1.6x10 13 | ??2.0x10 13 |
The epoxy resins insulation spare mechanical strength height of making through the inventive method, arc resistance is strong, the compactness height, any surface finish, have preferably cold resistance and have good thermal endurance, good advantages such as electrical insulation properties, the mechanical mechanics property of product, electrical insulation capability and flame retardant effect improve greatly, and safety and environmental protection.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (9)
1. the manufacture method of an environment friendly insulator housing is characterized in that it is made up of following steps:
(1) modification BPA epoxy resin, silicon powder, curing agent, dark mill base are mixed vacuum degassing by weight ratio;
(2) mixed material after will outgasing injects mould, solidifies for the first time;
(3) demoulding is solidified for the second time;
(4) the stock fine finishining after the curing for the second time.
2. the manufacture method of a kind of environment friendly insulator housing according to claim 1 is characterized in that described curing agent is a modification liquid carboxylic acid acid anhydride.
3. the manufacture method of a kind of environment friendly insulator housing according to claim 1 is characterized in that described weight proportion is 100 parts of modification BPA epoxy resin, 280～310 parts of silicon powders, 100 parts in curing agent, 40～45 parts of dark mill bases.
4. the manufacture method of a kind of environment friendly insulator housing according to claim 1 is characterized in that also adding in the described compound fire retardant.
5. the manufacture method of a kind of environment friendly insulator housing according to claim 4 is characterized in that the ratio of quality and the number of copies of described fire retardant and modification BPA epoxy resin is 40～60: 100.
6. the manufacture method of a kind of environment friendly insulator housing according to claim 5 is characterized in that described fire retardant is a kind of in TCPP, TDCPP, IPPP, deca-BDE, DMMP, triphenyl phosphate or the TDE.
7. the manufacture method of a kind of environment friendly insulator housing according to claim 1, it is characterized in that described vacuum degassing be 0～-outgased 1.5～2 hours under the vacuum degree of 1MPa.
8. the manufacture method of a kind of environment friendly insulator housing according to claim 1, it is characterized in that solidifying for the first time is to solidify 30～40 minutes under 135～145 ℃ of conditions.
9. the manufacture method of a kind of environment friendly insulator housing according to claim 1, it is characterized in that solidifying for the second time is to solidify 8 hours ± 10 minutes under 128～135 ℃ of conditions.
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| CN201010178761A CN101840757A (en) | 2010-05-21 | 2010-05-21 | Manufacturing method for environment-friendly type insulator shell |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831991A (en) * | 2012-08-09 | 2012-12-19 | 河南平高电气股份有限公司 | Method for manufacturing epoxy-cast insulators |
| CN102938279A (en) * | 2012-11-26 | 2013-02-20 | 浙江理工大学 | Preparation method of heat-resistant epoxy resin insulator |
| CN107987479A (en) * | 2017-12-13 | 2018-05-04 | 江西省萍乡市宇翔电瓷制造有限公司 | A kind of preparation process of compound porcelain insulator |
| CN108320874A (en) * | 2018-03-16 | 2018-07-24 | 天津大学 | The method of inhibition GIS insulator surface charge accumulations based on linear gradient processing |
| CN108359119A (en) * | 2018-02-28 | 2018-08-03 | 天津大学 | Epoxy resins insulation surface charge suppressing method based on linear gradient surface treatment |
| CN108384041A (en) * | 2018-02-28 | 2018-08-10 | 天津大学 | Epoxy resins insulation surface charge suppressing method based on the processing of ∧ type gradient surfaces |
| CN108428523A (en) * | 2018-03-16 | 2018-08-21 | 天津大学 | GIS insulator design methods with the distribution of two-dimentional dielectric constant linear gradient |
| CN108447630A (en) * | 2018-02-28 | 2018-08-24 | 天津大学 | GIL insulator design methods with the distribution of surface conductance two-dimensional linear gradient |
| CN108447631A (en) * | 2018-03-16 | 2018-08-24 | 天津大学 | GIS insulator design methods with the U-shaped gradient distribution of two-dimentional dielectric constant |
| CN108461234A (en) * | 2018-02-28 | 2018-08-28 | 天津大学 | GIL insulator design methods with the distribution of surface conductance two dimension ∧ type gradients |
| CN108470612A (en) * | 2018-02-28 | 2018-08-31 | 天津大学 | Epoxy resins insulation surface charge suppressing method based on the processing of U-shaped gradient surface |
| CN108484954A (en) * | 2018-02-28 | 2018-09-04 | 天津大学 | GIL insulator design methods with the U-shaped gradient distribution of surface conductance two dimension |
| CN108597699A (en) * | 2018-03-16 | 2018-09-28 | 天津大学 | GIS insulator design methods with the distribution of two-dimentional dielectric constant ∧ type gradients |
| CN108667253A (en) * | 2017-10-25 | 2018-10-16 | 王佳颖 | A kind of automotive disc wheel hub magneto and its mounting process |
| CN108695030A (en) * | 2018-03-16 | 2018-10-23 | 天津大学 | The method of inhibition GIS insulator surface charge accumulations based on the processing of U-shaped gradient |
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| CN1899793A (en) * | 2006-07-11 | 2007-01-24 | 扬州东源电力设备有限公司 | Method for producing environment friendly insulator |
| CN101157790A (en) * | 2007-10-22 | 2008-04-09 | 苏州巨峰绝缘材料有限公司 | Double-component heat-resistant epoxy dripping-soaking insulating resin composition and preparation method thereof |
| CN101240891A (en) * | 2008-03-07 | 2008-08-13 | 赵振平 | Method for preparing mine LED explosion-proof lamp |
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| JPS62243649A (en) * | 1986-04-15 | 1987-10-24 | Nippon Retsuku Kk | Resin composition for electrical insulation |
| CN1899793A (en) * | 2006-07-11 | 2007-01-24 | 扬州东源电力设备有限公司 | Method for producing environment friendly insulator |
| CN101157790A (en) * | 2007-10-22 | 2008-04-09 | 苏州巨峰绝缘材料有限公司 | Double-component heat-resistant epoxy dripping-soaking insulating resin composition and preparation method thereof |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831991A (en) * | 2012-08-09 | 2012-12-19 | 河南平高电气股份有限公司 | Method for manufacturing epoxy-cast insulators |
| CN102938279A (en) * | 2012-11-26 | 2013-02-20 | 浙江理工大学 | Preparation method of heat-resistant epoxy resin insulator |
| CN102938279B (en) * | 2012-11-26 | 2014-11-05 | 浙江理工大学 | Preparation method of heat-resistant epoxy resin insulator |
| CN108667253B (en) * | 2017-10-25 | 2019-11-19 | 永康市杰创工业产品设计有限公司 | A kind of automotive disc wheel hub magneto and its mounting process |
| CN108667253A (en) * | 2017-10-25 | 2018-10-16 | 王佳颖 | A kind of automotive disc wheel hub magneto and its mounting process |
| CN107987479A (en) * | 2017-12-13 | 2018-05-04 | 江西省萍乡市宇翔电瓷制造有限公司 | A kind of preparation process of compound porcelain insulator |
| CN107987479B (en) * | 2017-12-13 | 2020-03-27 | 江西省萍乡市宇翔电瓷制造有限公司 | Preparation process of composite porcelain insulator |
| CN108484954A (en) * | 2018-02-28 | 2018-09-04 | 天津大学 | GIL insulator design methods with the U-shaped gradient distribution of surface conductance two dimension |
| CN108359119B (en) * | 2018-02-28 | 2020-01-07 | 天津大学 | Epoxy resin insulation surface charge inhibition method based on linear gradient surface treatment |
| CN108484954B (en) * | 2018-02-28 | 2020-01-07 | 天津大学 | GIL insulator design method with surface conductance two-dimensional U-shaped gradient distribution |
| CN108461234A (en) * | 2018-02-28 | 2018-08-28 | 天津大学 | GIL insulator design methods with the distribution of surface conductance two dimension ∧ type gradients |
| CN108470612A (en) * | 2018-02-28 | 2018-08-31 | 天津大学 | Epoxy resins insulation surface charge suppressing method based on the processing of U-shaped gradient surface |
| CN108447630A (en) * | 2018-02-28 | 2018-08-24 | 天津大学 | GIL insulator design methods with the distribution of surface conductance two-dimensional linear gradient |
| CN108384041B (en) * | 2018-02-28 | 2020-01-07 | 天津大学 | Method for inhibiting charges on insulating surface of epoxy resin based on inverted V-shaped gradient surface treatment |
| CN108384041A (en) * | 2018-02-28 | 2018-08-10 | 天津大学 | Epoxy resins insulation surface charge suppressing method based on the processing of ∧ type gradient surfaces |
| CN108447630B (en) * | 2018-02-28 | 2019-12-31 | 天津大学 | GIL insulator design method with surface conductance two-dimensional linear gradient distribution |
| CN108359119A (en) * | 2018-02-28 | 2018-08-03 | 天津大学 | Epoxy resins insulation surface charge suppressing method based on linear gradient surface treatment |
| CN108461234B (en) * | 2018-02-28 | 2019-12-31 | 天津大学 | GIL insulator design method with surface conductance two-dimensional inverted V-shaped gradient distribution |
| CN108695030A (en) * | 2018-03-16 | 2018-10-23 | 天津大学 | The method of inhibition GIS insulator surface charge accumulations based on the processing of U-shaped gradient |
| CN108597699A (en) * | 2018-03-16 | 2018-09-28 | 天津大学 | GIS insulator design methods with the distribution of two-dimentional dielectric constant ∧ type gradients |
| CN108428523A (en) * | 2018-03-16 | 2018-08-21 | 天津大学 | GIS insulator design methods with the distribution of two-dimentional dielectric constant linear gradient |
| CN108320874B (en) * | 2018-03-16 | 2020-01-07 | 天津大学 | Method for inhibiting GIS insulator surface charge accumulation based on linear gradient processing |
| CN108447631A (en) * | 2018-03-16 | 2018-08-24 | 天津大学 | GIS insulator design methods with the U-shaped gradient distribution of two-dimentional dielectric constant |
| CN108447631B (en) * | 2018-03-16 | 2020-01-07 | 天津大学 | GIS insulator design method with two-dimensional dielectric constant U-shaped gradient distribution |
| CN108320874A (en) * | 2018-03-16 | 2018-07-24 | 天津大学 | The method of inhibition GIS insulator surface charge accumulations based on linear gradient processing |
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Application publication date: 20100922 |