CN101202135A - Method of preparing core rod of organic composite insulator - Google Patents
Method of preparing core rod of organic composite insulator Download PDFInfo
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- CN101202135A CN101202135A CNA2007100191437A CN200710019143A CN101202135A CN 101202135 A CN101202135 A CN 101202135A CN A2007100191437 A CNA2007100191437 A CN A2007100191437A CN 200710019143 A CN200710019143 A CN 200710019143A CN 101202135 A CN101202135 A CN 101202135A
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Abstract
The invention discloses a dynamic vacuum glue-immersion pulling-extruding process, aiming to solve the problem that the horizontal heat-resistant durability of Phi18 core bar cannot meet the requirement of an organic compound insulator sulfuration process. The process can enhance the preserved strength value of a horizontal heat-resistant strength of the insulation core rod to guarantee the horizontal heat-resistant strength of the rod. The technical proposal adopted by the invention includes the following steps: a. scattered glass fibers are transmitted to a glue tank containing resin-glue for first time glue immersion; b. the glass fibers after the first time glue immersion are transmitted to a sealed box provided with a fiber inlet and a fiber outlet respectively on the front face and the back face for vacuumizing pre-shaping; c. the glass fibers after vacuumizing pre-shaping process is transmitted to a pulling-extruding mould to become a shaped core bar through the pressing of the pulling-extruding mould; d. the shaped core bars are solidified through a solidifying and heating device and then are transmitted to a cutter to be cut into finished core bars with required length.
Description
Technical field
The present invention relates to a kind of manufacture method of core rod of organic composite insulator.
Background technology
Glass fiber impregnated epoxy resin pultrusion plug is one of most important parts of organic composite insulator, for satisfying the requirement of production process of composite insulator, φ 18 size mandrils is wherein had the thermal endurance specification requirement.The manufacture method of existing core rod of organic composite insulator is by glass yarn impregnation in the glue groove, directly enters pultrusion die curing and forms [Fig. 1].Because the glass yarn is an axially-aligned, axial hot strength is higher usually, and horizontal intensity is lower, especially the φ 18mm plug used of organic composite insulator, when being used for organic composite insulator production, when behind the high-temperature silicon disulfide rubber thereon during molding,, often fractureed easily during molding and scrapped because the horizontal intensity retention at high temperature of plug is lower.
Summary of the invention
The present invention is in order to solve the requirement that the horizontal high-temperature capability of φ 18 plugs does not reach the organic composite insulator sulfuration process, a kind of dynamic vacuum impregnation pultrude process is provided, this technology can improve the strength retention value under horizontal heat-resisting of insulation mandrel, guarantees the horizontal high-temperature capability of plug.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of manufacture method of core rod of organic composite insulator is characterized in that, comprises following processing step:
A. the glass yarn that disperses is delivered in the glue groove that fills resin glue and carries out the impregnation first time;
B. for the first time the glass yarn behind the impregnation is delivered in the closed box that front and back have into yarn, yarn outlet and vacuumizes preforming;
C. will vacuumize preformed glass yarn and be delivered to pultrusion die, through pultrusion die extruding becoming moulding plug;
D. after the moulding plug being solidified by a curing heater, be delivered to cutting machine, final cutting becomes the plug product of needed length;
Described conveying is dynamically to carry out continuously under the traction of solidifying a tractive machine that is provided with between heater and the cutting machine.
In the such scheme, the described preforming step that vacuumizes also can be included in and second glue groove is set in the described closed box carries out secondary dipping; Described vacuumizing in the preforming step, vacuum degree control is at 0.1～0.5MPa; Described resin glue is epoxy resin or mylar.
The present invention compares with the manufacture method of existing core rod of organic composite insulator, owing to increased and vacuumized preforming operation (comprising the secondary dipping under the vacuum), make the gas effusion deaeration in the resin, the glass yarn gumming is more abundant, increased the dipping degree of engagement of resin and glass yarn fiber, also improve simultaneously resin effective content.The transverse mechanical performance of solidifying the back plug improves 10～30%, and effect is obvious, and the thermal endurance of plug also effectively improves.
Description of drawings
Fig. 1 is the gum dipping process schematic diagram of existing machine composite electric insulator core bar.
Fig. 2 is a dynamic vacuum impregnation pultrude process schematic diagram of the present invention.
Fig. 3 is the schematic diagram of the inventive method secondary dipping in closed box.
Among the figure: 1, glass yarn; 2, glue groove; 3, pultrusion die; 4, moulding plug; 5, resin glue; 6, closed box; 7, solidify heater; 8, tractive machine; 9, cutting machine.
Embodiment
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 2, a kind of organic composite insulator φ 18mm plug dynamic vacuum impregnation pultrude process comprises book step down:
A. the glass yarn 1 that disperses is delivered in the glue groove 2 that fills resin glue 5 and carries out the impregnation first time, resin glue adopts industrial epoxy resin;
B. for the first time the glass yarn 1 behind the impregnation is delivered in the closed box 6 that front and back have into yarn, yarn outlet and vacuumizes preforming, and vacuum degree control is at 0.1MPa;
C. will vacuumize preformed glass yarn and be delivered to pultrusion die 3, become moulding plug 4 through pultrusion die 3 extruding;
D. after moulding plug 4 being solidified by a curing heater 7, be delivered to cutting machine 9, at last moulding plug 4 cut into the plug product of required length.
Conveying in the whole technology is dynamically to carry out continuously under the traction of solidifying a tractive machine 8 that is provided with between heater 7 and the cutting machine 9.
As Fig. 2, shown in Figure 3, another kind of organic composite insulator φ 18 plug dynamic vacuum impregnation pultrude process are substantially with embodiment 1.Different is, in vacuumizing the preforming step, also can be included in and second glue groove 10 is set in the closed box 6 carries out secondary dipping, and vacuum degree control is at 0.5MPa; In the glue groove the resin of containing adopt mylar.
Claims (4)
1. the manufacture method of a core rod of organic composite insulator is characterized in that, comprises following processing step:
A. the glass yarn that disperses is delivered in the glue groove that fills resin glue and carries out the impregnation first time;
B. for the first time the glass yarn behind the impregnation is delivered in the closed box that front and back have into yarn, yarn outlet and vacuumizes preforming;
C. will vacuumize preformed glass yarn and be delivered to pultrusion die, through pultrusion die extruding becoming moulding plug;
D. after the moulding plug being solidified by a curing heater, be delivered to cutting machine, at last the moulding plug cut into the plug product of required length;
Described conveying is dynamically to carry out continuously under the traction of solidifying a tractive machine that is provided with between heater and the cutting machine.
2. the manufacture method of core rod of organic composite insulator according to claim 1 is characterized in that, the described preforming step that vacuumizes is included in and second glue groove is set in the described closed box carries out secondary dipping.
3. the manufacture method of core rod of organic composite insulator according to claim 1 and 2 is characterized in that, described vacuumizing in the preforming step, and vacuum degree control is at 0.1～0.5MPa.
4. the manufacture method of core rod of organic composite insulator according to claim 1 and 2 is characterized in that, described resin glue adopts epoxy resin or mylar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100191437A CN100552834C (en) | 2007-11-21 | 2007-11-21 | A kind of manufacture method of core rod of organic composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100191437A CN100552834C (en) | 2007-11-21 | 2007-11-21 | A kind of manufacture method of core rod of organic composite insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101202135A true CN101202135A (en) | 2008-06-18 |
| CN100552834C CN100552834C (en) | 2009-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100191437A Active CN100552834C (en) | 2007-11-21 | 2007-11-21 | A kind of manufacture method of core rod of organic composite insulator |
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| CN (1) | CN100552834C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728036B (en) * | 2010-01-26 | 2011-11-23 | 陕西泰普瑞电工绝缘技术有限公司 | Method for preparing solid core rod of one-step molded high-voltage composite insulator |
| CN102504523A (en) * | 2011-11-03 | 2012-06-20 | 中国电力科学研究院 | High-toughness polyurethane composite insulator core rod and preparation method thereof |
| CN103440940A (en) * | 2013-07-26 | 2013-12-11 | 江苏神马电力股份有限公司 | Curing tool for insulator inner core |
| CN108406550A (en) * | 2018-05-08 | 2018-08-17 | 佛山市瑞生海特生物科技有限公司 | A kind of glass fiber bundle stump cutting method |
| CN114043750A (en) * | 2021-09-30 | 2022-02-15 | 安徽智达电气科技有限公司 | Preparation process of epoxy board for electrical insulation |
| CN116512642A (en) * | 2023-07-05 | 2023-08-01 | 河北润晟复合材料有限公司 | Composite high-strength glass fiber reinforced plastic pultruded profile and preparation method thereof |
-
2007
- 2007-11-21 CN CNB2007100191437A patent/CN100552834C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728036B (en) * | 2010-01-26 | 2011-11-23 | 陕西泰普瑞电工绝缘技术有限公司 | Method for preparing solid core rod of one-step molded high-voltage composite insulator |
| CN102504523A (en) * | 2011-11-03 | 2012-06-20 | 中国电力科学研究院 | High-toughness polyurethane composite insulator core rod and preparation method thereof |
| CN103440940A (en) * | 2013-07-26 | 2013-12-11 | 江苏神马电力股份有限公司 | Curing tool for insulator inner core |
| CN103440940B (en) * | 2013-07-26 | 2016-09-07 | 江苏神马电力股份有限公司 | Insulator inner core solidification frock |
| CN108406550A (en) * | 2018-05-08 | 2018-08-17 | 佛山市瑞生海特生物科技有限公司 | A kind of glass fiber bundle stump cutting method |
| CN114043750A (en) * | 2021-09-30 | 2022-02-15 | 安徽智达电气科技有限公司 | Preparation process of epoxy board for electrical insulation |
| CN116512642A (en) * | 2023-07-05 | 2023-08-01 | 河北润晟复合材料有限公司 | Composite high-strength glass fiber reinforced plastic pultruded profile and preparation method thereof |
| CN116512642B (en) * | 2023-07-05 | 2023-09-12 | 河北润晟复合材料有限公司 | Composite high-strength glass fiber reinforced plastic pultruded profile and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100552834C (en) | 2009-10-21 |
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Owner name: WEST CHINA ELECTRIC POWER CO. Free format text: FORMER OWNER: XI AN ELECTRIC MANUFACTURING CORP. Effective date: 20080905 |
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Effective date of registration: 20080905 Address after: Shaanxi province Xi'an City West High Tang Hing Road No. 7 post encoding: 710075 Applicant after: China XD Electronic Corporation Address before: No. 29 North Road, Shaanxi post encoding Fengdeng city in Xi'an Province: 710077 Applicant before: Xi'an Electric Manufacturing Corp. |
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Assignee: Xi'an Xidian High Pressure Sleeve Co., Ltd. Assignor: China XD Electronic Corporation|Xi'an electric porcelain Research Institute Co Ltd Contract fulfillment period: 2009.10.31 to 2014.10.30 contract change Contract record no.: 2009610000189 Denomination of invention: Method of preparing core rod of organic composite insulator Granted publication date: 20091021 License type: Exclusive license Record date: 20091223 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.10.31 TO 2014.10.30; CHANGE OF CONTRACT Name of requester: XI AN XD HIGH VOLTAGE BUSHING CO., LTD. Effective date: 20091223 |