CN101483089B - Production process for composite insulator solid core rob - Google Patents
Production process for composite insulator solid core rob Download PDFInfo
- Publication number
- CN101483089B CN101483089B CN2009100211181A CN200910021118A CN101483089B CN 101483089 B CN101483089 B CN 101483089B CN 2009100211181 A CN2009100211181 A CN 2009100211181A CN 200910021118 A CN200910021118 A CN 200910021118A CN 101483089 B CN101483089 B CN 101483089B
- Authority
- CN
- China
- Prior art keywords
- mould
- hour
- heated
- moulding press
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Insulating Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for preparation of composite insulator solid mandril, including: leading-out setting quantity of epoxy glass fiber to a dipping tank for dipping, the epoxy glass fiber after dipping entering into a mould pressing machine, arranging in a preheat die coated with release agent; the mould pressing machine further heating the die, simultaneously applying the identical pressure to the top and bottom of the die, after heating the die at 80 DEG C - 180 DEG C for 4 - 8 hours, maintaining pressure at 180 DEG C - 120 DEG C for 1 to 3 hours to complete the mandril by one time molding; after the one time molding of the mandril, stating the mould pressing machine, separating the dies, drawing the molding epoxy glass fiber from the die, and performing second curing by microwave heating. To ensure complete curing in the internal of the mandrel, intermittent pultrusion technology is combined with the flat-plate heating molding technology, to realize the production of large-diameter epoxy glass fiber composite insulator mandril.
Description
Technical field
The invention belongs to the composite insulator technical field, relate to a kind of preparation method of composite insulator major diameter solid mandrel, particularly the preparation method of the major diameter epoxy glass fiber composite insulator solid core rob more than the diameter 180mm.
Composite insulator is made up of plug (core body), gold utensil, silicon rubber umbrella cover three parts, insulation and transmission mechanical load in plug plays a part, and the silicon rubber umbrella cover plays the external insulation effect, and gold utensil plays two ends and connects.Wherein the plug effect is the most important and crucial.Plug as interior insulation is divided into solid mandrel and hollow plug, is called hollow combined insulator with the product of hollow plug production, is called the solid composite insulator with the product of solid mandrel production.The solid composite insulator mainly comprises following 3 kinds again: suspended compound insulator, post composite insulators and curved wall composite insulator.
Still be that the requirement of length aspect all is resolved worldwide at present as the hollow combined insulator diameter.But composite insulator solid core rob is because the designing requirement of product and the inherent shortcoming of existing technology, the domestic report of producing product that yet there are no of major diameter epoxy glass fiber post composite insulators plug that particularly large diameter epoxy glass fiber plug, especially diameter 180mm are above.
Existing composite insulator epoxy glass fiber solid mandrel is general to adopt continuous pultrude process production, continuously pultrude process comprise the guide operation, through hauling machine traction impregnation unit impregnation, in mould hot briquetting, secondary surface cure district, pultrusion depanning continuously.Wherein, fiber enters glue drill traverse glue by the silk tube through Yarn guide mechanism, and the fiber behind the impregnation enters in the hot mould and solidifies depanning; In the curing molding process, heat is to be sent on the mould of solid shape by hot plate.
Be subjected to existing process technology limit, pultrude process can't realize that diameter is very low greater than the preparation or the success rate of the epoxy glass plug of 180mm continuously.Reason is as follows, and the major diameter plug is in the curing molding process, because diameter of mandrel is bigger, it is slower that the heat on the mould is sent to the speed of plug inside; If moulding glass plug slows down firing rate to the inner full solidification of plug in the hot briquetting process, plug will be bonded on the mould, during depanning the draw-gear pultrusion motionless, have the danger that destroys mould if strengthen pulling force; If according to existing heating condition, solidify plug depanning rear surface, but plug inside may still be semi-cured state, and the words of pultrusion this moment are subjected to the internal stress effect, and plug is prone to cracking.
Summary of the invention
The purpose that the present invention solves is to provide a kind of defective that overcomes above-mentioned prior art, realizes that especially diameter surpasses the preparation method of large diameter a kind of composite insulator solid core rob of 180mm.
Technical scheme of the present invention is to solve like this:
A kind of preparation method of composite insulator solid core rob, the epoxy glass fiber of setting quantity is exported to the steeping vat impregnation, epoxy glass fiber behind the impregnation enters moulding press, in the mould of the preheating that scribbles release agent, put, moulding press hot plate heating mould, give mould simultaneously and apply identical 12～30Mpa pressure up and down, heating mould is after 4～8 hours under 80 ℃～180 ℃ temperature, mould is kept the pressure 1～3 hour of 12～30Mpa again under 180 ℃～80 ℃ temperature, the plug one-step solidification is finished;
After the plug one-step solidification is finished, open moulding press, peel of mould pulls out mould with the epoxy glass fiber of moulding, and regelate was carried out in microwave heating in 2～3 hours, and the frequency of described microwave is 300MHZ～300GHZ.
Described moulding press hot plate is during to mold heated, and heating-up temperature raises gradually, 80 ℃～120 ℃ heating 0.5～1 hour, and 120 ℃～150 ℃ heating 1～1.5 hour, 150 ℃～180 ℃ heating 1～3 hour were kept 1～3 hour for 180 ℃.
After described moulding press hot plate heating mould was finished, mold temperature reduced gradually, kept 0.5～1.5 hour for 180 ℃～150 ℃, kept 0.5～1 hour for 150 ℃～120 ℃.
Described peel of mould is to open mould up and down.
Half-open closing before described moulding press is started working, after the process preheating was started working, moulding press was slowly closed until complete closure.
The present invention compared with prior art has following useful technique effect:
1, in the epoxy glass fiber hot briquetting, pressurizes up and down, guarantee the curing molding of plug at mould.
2, treat the moulding of product full solidification after, mould is opened up and down, draws depanning again, does not hurt mould when guaranteeing the traction depanning of plug success.
3, then carry out the secondary microwave technology that is heating and curing after the plug traction depanning, to guarantee the inner full solidification of plug.
4, adopt the interruption pultrusion technique in conjunction with flat-plate heating molding technology, realize the composite electric insulator core bar of production major diameter epoxy glass fiber.
Embodiment
Below in conjunction with embodiment the present invention is done detailed description.
A kind of preparation method of composite insulator solid core rob at first, exports to the steeping vat impregnation with the epoxy glass fiber of setting quantity, and the epoxy glass fiber behind the impregnation enters moulding press, puts in the mould of the preheating that scribbles release agent; The further heating mould of moulding press hot plate, to mold heated the time, mould is applied the pressure of 12 identical～30Mpa up and down, the mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 0.5～1 hour, 120 ℃～150 ℃ were heated 1～1.5 hour, and 150 ℃～180 ℃ were heated 1～3 hour, kept for 180 ℃ to stop heating after 1～3 hour; Mould is slowly lowered the temperature, and keeps 0.5～1.5 hour for 180 ℃～150 ℃, keeps 0.5～1.5 hour for 150 ℃～120 ℃, still mould is kept the pressure of 12～30Mpa during cooling, and the plug one-step solidification is finished;
After plug is heating and curing and finishes, open moulding press, peel of mould pulls out mould with the epoxy glass fiber of moulding, carries out 2～3 hours regelates of microwave heating, and the frequency of described microwave is 300MHZ～300GHZ.
The preparation method of described composite insulator solid core rob, moulding press hot plate heating mould, in heating, give the pressure that mould applies 15 identical～28Mpa up and down, heating mould is after 4～7 hours under 100 ℃～160 ℃ temperature, mould is kept the pressure 1.5～2.5 hours of 15～25Mpa again under 170 ℃～90 ℃ temperature, the plug one-step solidification is finished;
After the plug one-step solidification is finished, open moulding press, peel of mould pulls out mould with the epoxy glass fiber of moulding, and regelate was carried out in microwave heating in 2～3 hours, and the frequency of described microwave is 400MHZ～280GHZ.
The preparation method of described composite insulator solid core rob, the moulding press hot plate is during to mold heated, and heating-up temperature raises gradually, 90 ℃～110 ℃ were heated 0.5～1 hour, 130 ℃～140 ℃ were heated 1～1.5 hour, and 160 ℃～170 ℃ were heated 1～3 hour, and kept 1～3 hour for 180 ℃.
Regelate is done electric, mechanical performance test to plug by the IEC61109 relevant criterion after finishing, and it is qualified that plug detects, and then finished product is finished.
Concrete heat, pressurization, curing time be provided with according to different plug designing requirements, the present invention illustrates that by specific embodiment described embodiment is explanation of the invention rather than qualification.
Embodiment 1
Diameter is the preparation method of the epoxy glass fiber composite insulator solid core rob of 180mm:
Raw material: epoxy glass fiber;
Equipment: pultrusion tractor, moulding press, mould, microwave oven, yarn guide;
Carry out according to following technology: at first, 8300 4800Tex fiber one ends are drawn by extruder, enter impregnation unit impregnation, the glue that present embodiment adopts is epoxy glue EA-70, with respect to the E51 epoxy resin of general use, its feature is low viscosity, high activity.Secondly, the epoxy glass fiber after pultrusion tractor traction impregnation is finished draws in the mould that enters moulding press and puts, and this moment, moulding press was half-open closes, and the sintered-carbide die that scribbles release agent is at preheat mode.Then, pultrusion tractor is out of service, and moulding press is started working, and the further heating mould of moulding press hot plate, moulding press are slowly closed until complete closure; To mold heated the time, by hydraulic mechanism mould is applied the pressure of 12Mpa up and down, mould links to each other with the hydraulic pressure output, and after the pressure size was set, hydraulic mechanism was by electromagnetically operated valve automatic pressure regulation size; The mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 0.5 hour, 120 ℃～150 ℃ were heated 1 hour, 150 ℃～180 ℃ were heated 1 hour, 180 ℃ keep stop after 1 hour the heating, mould is slowly lowered the temperature, and keeps 0.5 hour for 180 ℃～150 ℃, kept 0.5 hour for 150 ℃～120 ℃, still mould is kept the pressure of 12Mpa during cooling; Time, temperature are after the pattern of configuring, and moulding press is operated automatically, finish until one-step solidification.
When after the time of setting, mould was opened about the unlatching moulding press allowed, and opened hauling machine and walked out mould by plug, and frequency is 2 hours regelates of microwave heating of 300MHZ, to guarantee the inner full solidification of plug.
Embodiment 2
Diameter is the preparation method of the epoxy glass fiber composite insulator solid core rob of 180mm:
Raw material: epoxy glass fiber;
Equipment: pultrusion tractor, moulding press, mould, microwave oven, yarn guide;
Carry out according to following technology: at first, 8300 4800Tex fiber one ends are drawn by extruder, enter impregnation unit impregnation, the glue that present embodiment adopts is epoxy glue EA-70, with respect to the E51 epoxy resin of general use, its feature is low viscosity, high activity.Secondly, the epoxy glass fiber after pultrusion tractor traction impregnation is finished draws in the mould that enters moulding press and puts, and this moment, moulding press was half-open closes, and the sintered-carbide die that scribbles release agent is at preheat mode.Then, pultrusion tractor is out of service, and moulding press is started working, and the further heating mould of moulding press hot plate, moulding press are slowly closed until complete closure; To mold heated the time, by hydraulic mechanism mould is applied the pressure of 16Mpa up and down, mould links to each other with the hydraulic pressure output, and after the pressure size was set, hydraulic mechanism was by electromagnetically operated valve automatic pressure regulation size; The mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 0.6 hour, 120 ℃～150 ℃ were heated 1.25 hours, 150 ℃～180 ℃ were heated 2 hours, 180 ℃ keep stop after 2 hours the heating, mould is slowly lowered the temperature, and keeps 0.8 hour for 180 ℃～150 ℃, kept 0.6 hour for 150 ℃～120 ℃, still mould is kept the pressure of 16Mpa during cooling; Time, temperature are after the pattern of configuring, and moulding press is operated automatically, finish until one-step solidification.
When after the time of setting, mould was opened about the unlatching moulding press allowed, and opened hauling machine and walked out mould by plug, and frequency is 2.5 hours regelates of microwave heating of 0.5GHZ, to guarantee the inner full solidification of plug.
Embodiment 3
Diameter is the preparation method of the epoxy glass fiber composite insulator solid core rob of 180mm:
Raw material: epoxy glass fiber;
Equipment: pultrusion tractor, moulding press, mould, microwave oven, yarn guide;
Carry out according to following technology: at first, 8300 4800Tex fiber one ends are drawn by extruder, enter impregnation unit impregnation, the glue that present embodiment adopts is epoxy glue EA-70, with respect to the E51 epoxy resin of general use, its feature is low viscosity, high activity.Secondly, the epoxy glass fiber after pultrusion tractor traction impregnation is finished draws in the mould that enters moulding press and puts, and this moment, moulding press was half-open closes, and the sintered-carbide die that scribbles release agent is at preheat mode.Then, pultrusion tractor is out of service, and moulding press is started working, and the further heating mould of moulding press hot plate, moulding press are slowly closed until complete closure; To mold heated the time, by hydraulic mechanism mould is applied the pressure of 30Mpa up and down, mould links to each other with the hydraulic pressure output, and after the pressure size was set, hydraulic mechanism was by electromagnetically operated valve automatic pressure regulation size; The mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 1 hour, 120 ℃～150 ℃ were heated 1.5 hours, 150 ℃～180 ℃ were heated 3 hours, 180 ℃ keep stop after 3 hours the heating, mould is slowly lowered the temperature, and keeps 1 hour for 180 ℃～150 ℃, kept 1 hour for 150 ℃～120 ℃, still mould is kept the pressure of 30Mpa during cooling; Time, temperature are after the pattern of configuring, and moulding press is operated automatically, finish until one-step solidification.
When after the time of setting, mould was opened about the unlatching moulding press allowed, and opened hauling machine and walked out mould by plug, and frequency is 3 hours regelates of microwave heating of 300GHZ, to guarantee the inner full solidification of plug.
Embodiment 4
Diameter is the preparation of the epoxy glass fiber composite insulator solid core rob of 200mm
Raw material is described identical with embodiment 1 with equipment.
Carry out according to following technology: at first, 10400 4800Tex fiber one ends are drawn by extruder, enter impregnation unit impregnation, the glue that uses is the EA-70 epoxy glue.Then, behind the epoxy glass fiber impregnation, draw in the mould that enters moulding press and put, this moment, moulding press was half-open closes, and the sintered-carbide die that scribbles release agent is at preheat mode.Then, pultrusion tractor is out of service, and moulding press is started working, and the further heating mould of moulding press hot plate, moulding press are slowly closed, by hydraulic mechanism to 18Mpa that mould is exerted pressure up and down, until complete closure; The mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 0.75 hour, 120 ℃～150 ℃ were heated 1.5 hours, 150 ℃～180 ℃ were heated 2.5 hours, 180 ℃ keep stop after 3 hours the heating, mould is slowly lowered the temperature, and keeps 0.5 hour for 180 ℃～150 ℃, kept 0.75 hour for 150 ℃～120 ℃, still mould is kept the pressure of 18Mpa during cooling; Time, temperature are after the pattern of configuring, and moulding press is operated automatically, finish until one-step solidification.
When after the time of setting, mould was opened about the unlatching moulding press allowed, and opened hauling machine and walked out mould by plug, and frequency is 2 hours regelates of microwave heating of 100GHZ, to guarantee the inner full solidification of plug.
Embodiment 5
Diameter is the preparation method of the epoxy glass fiber composite insulator solid core rob of 200mm:
Raw material is described identical with embodiment 1 with equipment.
Carry out according to following technology: at first, 10400 4800Tex fiber one ends are drawn by extruder, enter impregnation unit impregnation, the glue that uses is the EA-70 epoxy glue.Then, behind the epoxy glass fiber impregnation, draw in the mould that enters moulding press and put, this moment, moulding press was half-open closes, and the sintered-carbide die that scribbles release agent is at preheat mode.Then, pultrusion tractor is out of service, and moulding press is started working, and the further heating mould of moulding press hot plate, moulding press are slowly closed, by hydraulic mechanism to the mould 25Mpa that exerts pressure up and down, until complete closure; The mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 1 hour, 120 ℃～150 ℃ were heated 1.5 hours, 150 ℃～180 ℃ were heated 2.5 hours, 180 ℃ keep stop after 2 hours the heating, mould is slowly lowered the temperature, and keeps 1 hour for 180 ℃～150 ℃, kept 0.5 hour for 150 ℃～120 ℃, still mould is kept the pressure of 25Mpa during cooling; Time, temperature are after the pattern of configuring, and moulding press is operated automatically, finish until one-step solidification.
When after the time of setting, mould was opened about the unlatching moulding press allowed, and opened hauling machine and walked out mould by plug, and frequency is 2 hours regelates of microwave heating of 150GHZ, to guarantee the inner full solidification of plug.
Embodiment 6
Diameter is the preparation method of the epoxy glass fiber composite insulator solid core rob of 240mm:
Raw material is described identical with embodiment 1 with equipment.
Carry out according to following technology: at first, 14800 4800Tex fiber one ends are drawn by extruder, enter impregnation unit impregnation, use be the EA-70 epoxy glue.Secondly, epoxy glass fiber impregnation pit draws in the mould that enters moulding press and puts, and this moment, moulding press was half-open closes, and the sintered-carbide die that scribbles release agent is at preheat mode.Then, pultrusion tractor is out of service, and moulding press is started working, and the further heating mould of moulding press hot plate, moulding press be the closed pair mould 20Mpa that exerts pressure up and down slowly, until complete closure; The mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 1 hour, 120 ℃～150 ℃ were heated 1.5 hours, 150 ℃～180 ℃ were heated 3 hours, 180 ℃ keep stop after 2 hours the heating, mould is slowly lowered the temperature, and keeps 1.5 hours for 180 ℃～150 ℃, kept 1 hour for 150 ℃～120 ℃, still mould is kept the pressure of 18Mpa during cooling; Time, temperature are after the pattern of configuring, and moulding press is operated automatically, finish until one-step solidification.
When after the time of setting, mould was opened about the unlatching moulding press allowed, and opened hauling machine and walked out mould by plug, and frequency is 1.5 hours regelates of microwave heating of 250GHZ, to guarantee the inner full solidification of plug.
Claims (4)
1. a composite insulator diameter surpasses the preparation method of the solid mandrel of 180mm, the epoxy glass fiber of setting quantity is exported to the steeping vat impregnation, epoxy glass fiber behind the impregnation enters moulding press, in the mould of the preheating that scribbles release agent, put, it is characterized in that moulding press hot plate heating mould, in heating, give the pressure that mould applies 12 identical～30Mpa up and down, the mold heated temperature raises gradually, 80 ℃～120 ℃ were heated 0.5～1 hour, 120 ℃～150 ℃ were heated 1～1.5 hour, 150 ℃～180 ℃ were heated 1～3 hour, kept for 180 ℃ to stop heating after 1～3 hour; Mould is slowly lowered the temperature, and keeps 0.5～1.5 hour for 180 ℃～150 ℃, keeps 0.5～1.5 hour for 150 ℃～120 ℃, still mould is kept the pressure 1～3 hour of 12～30Mpa during cooling, and the plug one-step solidification is finished;
After the plug one-step solidification is finished, open moulding press, peel of mould pulls out mould with the epoxy glass fiber of moulding, and regelate was carried out in microwave heating in 2～3 hours, and the frequency of described microwave is 300MHZ～300GHZ.
2. composite insulator diameter according to claim 1 surpasses the preparation method of the solid mandrel of 180mm, when it is characterized in that the moulding press hot plate to mold heated, heating-up temperature raises gradually, 90 ℃～110 ℃ were heated 0.5～1 hour, 130 ℃～140 ℃ were heated 1～1.5 hour, 160 ℃～170 ℃ were heated 1～3 hour, and kept 1～3 hour for 180 ℃.
3. composite insulator diameter according to claim 1 surpasses the preparation method of the solid mandrel of 180mm, it is characterized in that described peel of mould is to open mould up and down.
4. composite insulator diameter according to claim 1 surpasses the preparation method of the solid mandrel of 180mm, it is characterized in that moulding press start working before half-open closing, after starting working through preheating, moulding press is slowly closed until complete closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100211181A CN101483089B (en) | 2009-02-13 | 2009-02-13 | Production process for composite insulator solid core rob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100211181A CN101483089B (en) | 2009-02-13 | 2009-02-13 | Production process for composite insulator solid core rob |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101483089A CN101483089A (en) | 2009-07-15 |
| CN101483089B true CN101483089B (en) | 2011-01-26 |
Family
ID=40880152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100211181A Expired - Fee Related CN101483089B (en) | 2009-02-13 | 2009-02-13 | Production process for composite insulator solid core rob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101483089B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740185B (en) * | 2010-01-22 | 2011-12-21 | 陕西泰普瑞电工绝缘技术有限公司 | Preparation method of large-diameter composite insulator solid core rod |
| CN102270529B (en) * | 2010-05-05 | 2013-02-27 | 江苏神马电力股份有限公司 | Core rod for insulator and manufacturing method thereof as well as composite insulator with core rod |
| CN101872662A (en) * | 2010-06-11 | 2010-10-27 | 浙江科成电气有限公司 | Manufacturing method of capacitance type high-voltage isolated bus |
| CN101942922B (en) * | 2010-08-16 | 2014-05-21 | 中国电力科学研究院 | Process for preparing power transmission composite cross arm with electric mark corrosion tolerance and high hydrophobic property |
| CN102179944B (en) * | 2011-04-25 | 2013-04-10 | 盐城市强力电工绝缘材料厂 | Process for producing large-caliber epoxy glass fiber pultruded pipe |
| CN104992800B (en) * | 2015-06-18 | 2016-11-02 | 西安高强绝缘电气有限责任公司 | A kind of manufacture method of the combined core rod of insulator of multicore |
| CN105729821A (en) * | 2016-04-05 | 2016-07-06 | 常熟江南玻璃纤维有限公司 | Manufacturing method for overall bathroom top cover |
| CN108015946A (en) * | 2017-12-12 | 2018-05-11 | 增城华昌塑料五金模具有限公司 | A kind of die press technology for forming of long glass fiber reinforced resin bow arm |
| CN108766687A (en) * | 2018-06-11 | 2018-11-06 | 河北康奥电力汽配有限公司 | A kind of preparation method of composite material system pillar silica gel composite insulator |
| CN111572064B (en) * | 2020-04-27 | 2022-12-16 | 江苏神马电力股份有限公司 | Pultrusion device and technology |
| CN112095339B (en) * | 2020-09-27 | 2022-09-16 | 哈尔滨师范大学 | Preparation process of self-supporting g-C3N4/CDots nanofiber film |
-
2009
- 2009-02-13 CN CN2009100211181A patent/CN101483089B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101483089A (en) | 2009-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101483089B (en) | Production process for composite insulator solid core rob | |
| CN101728036B (en) | Method for preparing solid core rod of one-step molded high-voltage composite insulator | |
| JP2010519067A5 (en) | ||
| CN101740186B (en) | Method for preparing double-stage formed high-voltage compound insulator solid core rod | |
| JP4549346B2 (en) | Composite hollow insulator and manufacturing method thereof | |
| CN102242793B (en) | Method for manufacturing driving belt | |
| CN101740185B (en) | Preparation method of large-diameter composite insulator solid core rod | |
| CN107803967A (en) | One kind injection high smooth product is without pressurize moulding process | |
| CN107322857A (en) | A kind of phenoplasts inspection shaft well lid heat pressing forming device and its drawing method | |
| CN102371650B (en) | Preparation method for high-strength composite cable holder | |
| CN102371684A (en) | Preparation method for composite cable holder | |
| CN101494107A (en) | Method for producing sandstorm resistance insulator core pin with umbrella for railway | |
| CN103213231A (en) | Mold pressing method for unidirectional high strength SMC molded product | |
| CN104325661A (en) | Continuous production method of aramid fiber enhanced cable core | |
| CN109551787A (en) | A kind of advanced pultrusion method and its molding machine of composite material section bar | |
| CN112848397A (en) | Compression molding device and novel process for phenolic glass fiber product with insert | |
| CN104890259B (en) | A kind of Processes and apparatus of fiber reinforcement MC nylon | |
| CN109795063A (en) | Casting device is used in large-tow carbon fiber reinforcement | |
| CN109940908A (en) | A kind of moulding process of carbon fiber and phenolic resin composite | |
| CN206085465U (en) | Bearing parts carbon fiber forming die | |
| CN204869434U (en) | Preceding hot briquetting mould that gives sound insulation and fill up that encloses | |
| CN110001078A (en) | A kind of carbon fiber/aramid fiber fiber hybrid composite preparation facilities and method | |
| CN111361179A (en) | Thermoplastic composite material forming process suitable for complex large curvature | |
| CN111688238A (en) | Method for forming thermosetting polymer fiber composite material part | |
| CN111452277B (en) | Forming device and process of rubber sponge barrel-shaped section bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Yamin Inventor before: Wu Yaming |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU YAMING TO: WU YAMIN |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20180213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |