CN101702354A - Method for molding high voltage hollow composite insulator - Google Patents
Method for molding high voltage hollow composite insulator Download PDFInfo
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- CN101702354A CN101702354A CN200910311834A CN200910311834A CN101702354A CN 101702354 A CN101702354 A CN 101702354A CN 200910311834 A CN200910311834 A CN 200910311834A CN 200910311834 A CN200910311834 A CN 200910311834A CN 101702354 A CN101702354 A CN 101702354A
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- umbrella cover
- high voltage
- hollow composite
- composite insulator
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Abstract
The invention relates to the field of manufacturing high voltage power insulators, in particular to a method for molding a high voltage hollow composite insulator, which is characterized in that an outer insulation umbrella cover part is molded as a whole and formed by one-step injection molding; and the production process of the method is divided into eight steps for completing the whole molded product, and the whole outer insulation umbrella cover is completed by one-step. The method is applicable to the 550kV hollow composite insulators and can simplify the production process, improve the production efficiency, improve the sealing performance and the appearance of the umbrella cover, further improve the electrical performances of the product, and enhance the reliability and the safety of the operation of the product.
Description
Technical field
The present invention relates to the high-tension electricity insulator and make field, particularly a kind of method for molding high voltage hollow composite insulator.
Technical background
At present, the 550kV hollow combined insulator comprises insulating cylinder, flange and umbrella cover, its forming method generally adopts stage injection, mainly contain two kinds: a kind of method is that an end of insulating cylinder and upper flange are carried out gluing encapsulation (mucilage binding), put into the 1st section umbrella cover mould, carry out injection, the sulfuration of silicon rubber full skirt, put into the 2nd, 3,4 then ... in the section umbrella cover mould, carry out silicon rubber injection, sulfuration, the last insulating cylinder other end and lower flange carry out mucilage binding, and, form entire product to flange and the sealing of umbrella cover contact-making surface gluing; Another kind method is: with insulating cylinder put into the 1st, 2,3 ... in the section umbrella cover mould, carry out injection, the sulfuration of silicon rubber full skirt, mucilage binding is carried out with last lower flange respectively in the two ends of insulating cylinder then, and to flange and the sealing of umbrella cover contact-making surface gluing, forms entire product.
The following problem that existing these two kinds of methods exist: (1) whole umbrella cover forming process is finished through stage injection repeatedly, and each section is connected complex process, need to consider sealing, bonding, inlay problem such as umbrella, and frequent mold exchange more, production efficiency is low; (2) there is the many places section of connecing face in the umbrella cover surface, and presentation quality is poor, out-of-flatness, and whether bonding good, reliability of products is reduced if can't detect inside.Even when the section of connecing ftractureed, the electrification in high voltage operation can cause creepage phenomenon, and insulator loses insulation property, has a strong impact on the operation of its related electric equipment, especially to being used for the high-pressure hollow combined insulator of 550kV and above electric pressure thereof, influenced more serious.
Summary of the invention
The purpose of this invention is to provide a kind of method for molding high voltage hollow composite insulator, it is applicable to the 550kV hollow combined insulator, can simplify production technology, enhance productivity and the sealing property and the presentation quality of umbrella cover, and then improve the product electric property, strengthen product reliability of operation and fail safe.
Technical scheme of the present invention is: design a kind of method for molding high voltage hollow composite insulator, it is characterized in that: the external insulation umbrella cover partly is integral die, shot moulding;
The technological process of production according to this method is:
(1) mucilage binding is carried out at insulating cylinder two ends and upper and lower flange, form components A;
(2) to needing moulding umbrella cover part among the A, that is: flange upper surface Outboard Sections and insulating cylinder outer surface are cleaned out, the brushing bonding agent;
(3) A is put into insulator umbrella cover mould;
(4) matched moulds carries out locked mode, pressurization to mould;
(5) adopt the sulphurated siliastic material that die cavity is carried out whole sizing material injection;
(6) treat that whole die cavity is full of sizing material, stop injection;
(7) heating makes its final sulfidization molding;
(8) close heating, shaped article is shifted out from mould, thereby finish whole shaped article, whole external insulation umbrella cover is for once finishing.
Described external insulation umbrella cover material is the solid high-temperature silicon disulfide rubber.
120 ℃～160 ℃ of described umbrella cover curing temperatures;
Described injection pressure 60bar～140bar.
Described insulating cylinder and flange adopt the epoxy glue assembling structure.
Technical characterstic of the present invention: because the external insulation umbrella cover of the present invention's design partly is an integral die, shot moulding; The external insulation umbrella cover material is the solid high-temperature silicon disulfide rubber; Insulating cylinder and flange adopt the epoxy glue assembling structure; 120 ℃～160 ℃ of umbrella cover curing temperatures; Injection pressure 60bar～140bar.So it is compared with existing stage injection forming method, the advantage of shot moulding of the present invention is the integral die by umbrella cover, and the external insulation umbrella cover is compressed to an integral body, has simplified the complexity of multistage moulding, improve production efficiency, reduced the dimensional discrepancy problem of moulding; Owing to adopt integral die technology, effectively improved the sealing property of umbrella cover termination, and the umbrella cover presentation quality is good simultaneously, surfacing, and then improved the entire product electric property, strengthen product reliability of operation and fail safe.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is an embodiment of the invention high-pressure hollow combined insulator structural representation.
Among the figure: 1, flange; 2, external insulation umbrella cover; 3, insulating cylinder.
Embodiment
Technical scheme implementation procedure of the present invention is as follows:
Insulator of the present invention is by flange 1, external insulation umbrella cover 2, insulating cylinder 3 integral dies, and shot moulding constitutes.
Specific operation process is as follows:
1, the epoxy glue mucilage binding is carried out at insulating cylinder 3 two ends and upper and lower flange 1, form components A;
2, to needing moulding umbrella cover part among the A, that is: flange 1 upper surface Outboard Sections and insulating cylinder 3, outer surface is cleaned out, the brushing bonding agent;
3, A is put into insulator umbrella cover mould;
4, matched moulds, both mold ends adopt the sealing strip sealing that mould is carried out locked mode, plus-pressure 60bar～140bar;
5, adopt the sulphurated siliastic material that die cavity is carried out whole sizing material injection;
6, treat that whole die cavity is full of sizing material, stop injection;
7, heating makes 120 ℃～160 ℃ of umbrella cover curing temperatures, makes its final sulfidization molding;
8, close the heating cooling, after the cooling shaped article is shifted out from mould, thereby finish whole shaped article, whole external insulation umbrella cover is for once finishing.
High-pressure hollow combined insulator after finishing as shown in Figure 1, whole external insulation umbrella cover 2 is complete parts, its surfacing has improved the entire product electric property, strengthens product reliability of operation and fail safe.
Claims (6)
1. method for molding high voltage hollow composite insulator is characterized in that: external insulation umbrella cover (2) part is integral die, shot moulding.
2. the technological process of production according to this method is:
1) mucilage binding is carried out at insulating cylinder (3) two ends and upper and lower flange (1), form components A;
2) to needing moulding umbrella cover part among the A, that is: flange (1) upper surface Outboard Sections and insulating cylinder (3) outer surface are cleaned out, the brushing bonding agent;
3) A is put into insulator umbrella cover mould;
4) matched moulds carries out locked mode, pressurization to mould;
5) adopt the sulphurated siliastic material that die cavity is carried out whole sizing material injection;
6) treat that whole die cavity is full of sizing material, stop injection;
7) heating makes its final sulfidization molding;
8) close heating, shaped article is shifted out from mould, thereby finish whole shaped article, whole external insulation umbrella cover is for once finishing.
3. a kind of method for molding high voltage hollow composite insulator according to claim 1 is characterized in that: described external insulation umbrella cover (2) material is the solid high-temperature silicon disulfide rubber.
4. a kind of method for molding high voltage hollow composite insulator according to claim 2 is characterized in that: 120 ℃～160 ℃ of described umbrella cover curing temperatures;
5. a kind of method for molding high voltage hollow composite insulator according to claim 2 is characterized in that: described injection pressure 60bar～140bar.
6. a kind of method for molding high voltage hollow composite insulator according to claim 2 is characterized in that: described insulating cylinder (3) adopts the epoxy glue assembling structure with flange (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910311834A CN101702354A (en) | 2009-12-18 | 2009-12-18 | Method for molding high voltage hollow composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910311834A CN101702354A (en) | 2009-12-18 | 2009-12-18 | Method for molding high voltage hollow composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101702354A true CN101702354A (en) | 2010-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910311834A Pending CN101702354A (en) | 2009-12-18 | 2009-12-18 | Method for molding high voltage hollow composite insulator |
Country Status (1)
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| CN (1) | CN101702354A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065745A (en) * | 2011-10-20 | 2013-04-24 | 襄樊国网合成绝缘子股份有限公司 | Mould pressing insulator manufacture method |
| CN105679470A (en) * | 2016-03-29 | 2016-06-15 | 江苏神马电力股份有限公司 | Insulator and adhesive binding method thereof |
| CN111391226A (en) * | 2020-04-08 | 2020-07-10 | 扬州市双宝电力设备有限公司 | Ultra-high voltage composite insulator production equipment and process |
-
2009
- 2009-12-18 CN CN200910311834A patent/CN101702354A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065745A (en) * | 2011-10-20 | 2013-04-24 | 襄樊国网合成绝缘子股份有限公司 | Mould pressing insulator manufacture method |
| CN105679470A (en) * | 2016-03-29 | 2016-06-15 | 江苏神马电力股份有限公司 | Insulator and adhesive binding method thereof |
| CN111391226A (en) * | 2020-04-08 | 2020-07-10 | 扬州市双宝电力设备有限公司 | Ultra-high voltage composite insulator production equipment and process |
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Owner name: CHINA XD ELECTRONIC CORPORATION Free format text: FORMER OWNER: XI AN XIDIAN HIGH-PRESSURE BUSHING CO., LTD. Effective date: 20100818 |
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Effective date of registration: 20100818 Address after: 710075 Shaanxi province Xi'an city road high tech Zone Tang No. 7 block A Applicant after: China XD Electronic Corporation Address before: 712044, No. 009, Century Road, Shaanxi, Xianyang Applicant before: Xi'an Xidian High Pressure Sleeve Co., Ltd. |
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Application publication date: 20100505 |