CN110903028A - Glass fiber gauze and production equipment thereof - Google Patents
Glass fiber gauze and production equipment thereof Download PDFInfo
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- CN110903028A CN110903028A CN201911254439.6A CN201911254439A CN110903028A CN 110903028 A CN110903028 A CN 110903028A CN 201911254439 A CN201911254439 A CN 201911254439A CN 110903028 A CN110903028 A CN 110903028A
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- water
- glass fiber
- yarn
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- storage tank
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/0203—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/0216—Solving the problem of disruption of drawn fibre, e.g. breakage, start-up, shut-down procedures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention discloses a glass fiber gauze and production equipment thereof, which comprises a base, a smelting furnace box, a water storage tank and a pressure tank, wherein the water storage tank is fixedly arranged on one side of the upper end surface of the base, the smelting furnace box is fixedly arranged on the upper end surface of the water storage tank, the pressure tank is fixedly arranged on the upper side of the end surface of the water storage tank, a pressure pump is fixedly arranged in the middle of the upper end surface of the pressure tank, and the output end of the pressure pump is positioned at the upper end inside the pressure tank: utilize the force (forcing) pump to pressurize to the inside glass fiber liquid of pressurized tank, thereby glass fiber liquid extrudees into the yarn along a yarn passageway, the difficult fracture of substrate yarn outlet, helical structure's cooling bath has been inlayed to the pipe wall of guide tube inside, utilize circulating water pump work cooling water circulation to flow through the cooling bath, cool off the inside glass fiber liquid of guide channel, the cooling effect is even, the intensity of yarn has been improved, the both sides terminal surface of storage water tank is equipped with radiating fin, the radiating efficiency of the inside cooling water of storage water tank has been improved, thereby the heat absorption effect of cooling water has been increased.
Description
The technical field is as follows:
the invention belongs to the technical field of gauze production, and particularly relates to a glass fiber gauze and production equipment thereof.
Background art:
the glass fiber is an inorganic non-metallic material with excellent performance, has various varieties, has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the defects of brittleness and poor wear resistance, is prepared by taking seven kinds of ores of pyrophyllite, quartz sand, limestone, dolomite, borocalcite and boromagnesite as raw materials and carrying out processes of high-temperature melting, wire drawing, winding, weaving and the like, is usually used as a reinforcing material, an electrical insulating material, a heat insulating material, a circuit substrate and other national economy fields in composite materials, and the like, mainly comprises silicon dioxide, aluminum oxide, calcium oxide, boron oxide, magnesium oxide, sodium oxide and the like, can be divided into alkali-free glass fiber (0-2 percent of sodium oxide, which belongs to aluminoborosilicate glass) and medium-alkali glass fiber (8-12 percent of sodium oxide) according to the content of alkali in the glass, sodium-calcium silicate glass containing boron or not containing boron) and high alkali glass fiber (sodium oxide more than 13% belongs to sodium-calcium silicate glass).
Glass fiber gauze is because its heat resistance is good and intensity is high widely used, and traditional glass fiber need produce glass fiber substrate yarn earlier in manufacturing process, and the yarn is woven into the gauze to reuse the yarn machine of weaving, and traditional glass fiber substrate yarn all adopts the fiber drawing roller to draw glass fiber into the silk thread, but this kind of mode yarn fracture appears easily, when cooling glass fiber, and the intensity of yarn can be influenced to the cooling is inhomogeneous, needs to solve.
The invention content is as follows:
the invention aims to solve the problems that the existing glass fiber base material yarns are all drawn into threads by adopting a drawing roller, but the yarns are easy to break in the mode, and the strength of the yarns is influenced by uneven cooling when the glass fibers are cooled.
In order to solve the above problems, the present invention provides a technical solution:
a glass fiber gauze and production equipment thereof comprise a base, a melting furnace box, a water storage box and a pressurizing box, wherein the water storage box is fixedly arranged on one side of the upper end surface of the base, the melting furnace box is fixedly arranged on the upper end surface of the water storage box, the pressurizing box is fixedly arranged on the upper end surface of the water storage box and leans against the upper side, a pressurizing pump is fixedly arranged in the middle of the upper end surface of the pressurizing box, the output end of the pressurizing pump is positioned at the upper end inside the pressurizing box, a plurality of yarn guide tubes are fixedly arranged on the lower end surface of the pressurizing box, yarn guide channels are arranged inside the yarn guide tubes, one end of each yarn guide channel is communicated with the lower end inside the pressurizing box, yarn outlet tubes are fixedly connected to the lower sides of the tail ends of the yarn guide tubes, yarn outlet channels are arranged inside the yarn outlet tubes, blocking blocks are arranged between, and a spring is arranged between the threaded column and the blocking block, and two ends of the spring are respectively fixedly connected with the blocking block and the threaded column.
As preferred, helical structure's cooling tank has all been inlayed to the pipe wall of air guide tube, the outside lower extreme fixed mounting of storage water tank has circulating water pump, circulating water pump's water inlet is located the inside lower extreme of storage water tank, circulating water pump's delivery port is through outlet pipe and cooling tank intake end intercommunication, fixedly connected with connects the water pipe between the air guide tube, through connecting the water pipe intercommunication between the cooling tank, the delivery end of cooling tank passes through wet return and the inside intercommunication of storage water tank.
Preferably, the lower end of the interior of the melting furnace box is communicated with the upper end of the interior of the pressurizing box through a liquid leakage pipe, a manual valve is arranged on the liquid leakage pipe, a feeding port is formed in the upper end of the melting furnace box, heating plates are embedded in two sides of the interior of the melting furnace box, a plurality of radiating fins are uniformly arranged on end faces of two sides of the water storage box, a support is fixedly arranged on the edge of the other side of the upper end face of the base, a roller shaft is fixedly arranged at the upper end of the support, a yarn supporting roller is arranged on the roller shaft, and the yarn supporting roller.
Preferably, a liquid level window is arranged on one side end face of the water storage tank, and transparent glass is embedded in the liquid level window.
Preferably, a water filling port is arranged on one side of the upper end face of the water storage tank, and a blocking cover is arranged on the water filling port.
Preferably, a drain pipe is arranged on the lower side of the end face of the water storage tank and communicated with the lower end inside the water storage tank, and a second manual valve is arranged on the drain pipe.
Preferably, the yarn supporting roller is horizontally arranged and is positioned at the upper end of one side of the yarn outlet pipe.
Preferably, the four corners of the lower end face of the base are fixedly provided with supporting legs, and the lower ends of the supporting legs are provided with non-slip mats.
Preferably, the water storage tank stores cooling water therein.
Preferably, the tail end of the threaded column is provided with a hexagonal groove.
The invention has the beneficial effects that:
1. the glass fiber liquid in the pressurizing box is pressurized by the pressurizing pump, so that the glass fiber liquid is extruded into yarns along the yarn outlet channel, and the outgoing yarns of the base material yarns are not easy to break.
2. The cooling tank with the spiral structure is embedded in the tube wall of the yarn guide tube, working cooling water of the circulating water pump flows through the cooling tank in a circulating mode, glass fiber liquid in the yarn guide channel is cooled, the cooling effect is uniform, and the strength of the yarn is improved.
3. The end surfaces of the two sides of the water storage tank are provided with the radiating fins, so that the radiating efficiency of the cooling water in the water storage tank is improved, and the heat absorption effect of the cooling water is increased.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the external structure of the yarn guide tube and the yarn outlet tube of the present invention;
FIG. 3 is a schematic view of the internal structure of the yarn guide tube and the yarn outlet tube of the present invention;
FIG. 4 is a schematic view of the internal structure of the furnace tank of the present invention;
FIG. 5 is an enlarged view of the area A indicated in FIG. 1;
fig. 6 is an enlarged structural view of a region B indicated in fig. 2.
In the figure: 1. a base; 2. a furnace box; 3. a water storage tank; 4. a pressurizing box; 5. a pressure pump; 6. a yarn guide tube; 7. a yarn guide channel; 8. discharging the bobbin; 9. a yarn outlet channel; 10. blocking; 11. a threaded post; 12. a spring; 13. a cooling tank; 14. a water circulating pump; 15. a water outlet pipe; 16. connecting a water pipe; 17. a water return pipe; 18. a liquid leakage pipe; 19. a manual valve; 20. heating plates; 21. a feeding port; 22. a heat dissipating fin; 23. a liquid level window; 24. a water filling port; 25. a drain pipe; 26. a second manual valve; 27. a support; 28. a roll shaft; 29. a yarn supporting roller; 30. supporting legs; 31. a hexagonal groove.
The specific implementation mode is as follows:
as shown in fig. 1 to 6, the following technical solutions are adopted in the present embodiment: a glass fiber gauze and production equipment thereof comprise a base 1, a melting furnace box 2, a water storage box 3 and a pressurizing box 4, wherein the water storage box 3 is fixedly arranged on one side of the upper end surface of the base 1, the melting furnace box 2 is fixedly arranged on the upper end surface of the water storage box 3, the pressurizing box 4 is fixedly arranged on the end surface of the water storage box 3 and leans on the upper side, a pressurizing pump 5 is fixedly arranged in the middle of the upper end surface of the pressurizing box 4, the output end of the pressurizing pump 5 is positioned at the upper end inside the pressurizing box 4, a plurality of yarn guide tubes 6 are fixedly arranged on the lower end surface of the pressurizing box 4, yarn guide channels 7 are arranged inside the yarn guide tubes 6, one ends of the yarn guide channels 7 are communicated with the lower end inside the pressurizing box 4, yarn outlet tubes 8 are fixedly connected to the lower side of the tail ends of the yarn guide tubes 6, yarn outlet channels 9 are arranged inside the yarn guide channels 9, blocking blocks 10 are, the thread connection has screw thread post 11 in 6 tail ends of guide tube, be equipped with spring 12 between screw thread post 11 and the sprue 10, the both ends of spring 12 respectively with sprue 10 and screw thread post 11 fixed connection.
Wherein, helical structure's cooling bath 13 has all been inlayed to the pipe wall of guide tube 6, the outside lower extreme fixed mounting of storage water tank 3 has circulating water pump 14, circulating water pump 14's water inlet is located the inside lower extreme of storage water tank 3, circulating water pump 14's delivery port is through outlet pipe 15 and cooling bath 13 end intercommunication of intaking, fixedly connected with connects water pipe 16 between the guide tube 6, through connecting water pipe 16 intercommunication between the cooling bath 13, the outlet end of cooling bath 13 passes through wet return 17 and the inside intercommunication of storage water tank 3.
Wherein the lower end inside the melting furnace box 2 is communicated with the upper end inside the pressure box 4 through a liquid leakage pipe 18, a one-number manual valve 19 is arranged on the liquid leakage pipe 18, a feeding port 21 is arranged at the upper end of the melting furnace box 2, heating plates 20 are embedded at two sides in the melting furnace box 2, glass fiber balls are put into the melting furnace box 2 through a feeding port 21, the heating plate 20 is used for heating to melt the glass fiber balls, the end surfaces of the two sides of the water storage tank 3 are uniformly provided with a plurality of radiating fins 22, the radiating fins 22 of the end surfaces of the two sides of the water storage tank 3 improve the radiating efficiency of the cooling water in the water storage tank 3, thereby increasing the heat absorption effect of the cooling water, the other side edge of the upper end surface of the base 1 is fixedly provided with a bracket 27, the upper end of the bracket 27 is fixedly provided with a roll shaft 28, the roll shaft 28 is provided with a yarn supporting roller 29, and the yarn supporting roller 29 is rotatably connected with the roll shaft 28.
Wherein, a side end face of the water storage tank 3 is provided with a liquid level window 23, transparent glass is embedded in the liquid level window 23, and the water level in the water storage tank 3 is observed through the liquid level window 23.
Wherein, a water filling opening 24 is arranged on one side of the upper end surface of the water storage tank 3, a blocking cover is arranged on the water filling opening 24, the blocking cover is opened, and cooling water is added into the water storage tank 3 through the water filling opening 24.
Wherein, 3 terminal surface downside of storage water tank is equipped with drain pipe 25, drain pipe 25 and the inside lower extreme intercommunication of storage water tank 3, be equipped with No. two manual valve 26 on the drain pipe 25, open No. two manual valve 26, the inside cooling water of storage water tank 3 flows from drain pipe 25.
The yarn supporting roller 29 is horizontally arranged, the yarn supporting roller 29 is located at the upper end of one side of the yarn outlet tube 8, and the yarn supporting roller 29 can support the yarn to facilitate winding.
All fixed mounting has supporting legs 30 in the terminal surface four corners department under base 1, supporting legs 30 lower extreme all is equipped with the slipmat, and supporting legs 30 supports base 1.
Wherein, the storage water tank 3 stores cooling water, and the cold water absorbs heat when flowing through the cooling tank 13.
Wherein, the tail end of screw thread post 11 is equipped with hexagonal groove 31, and accessible hexagonal spanner rotates screw thread post 11 to change spring 12's elasticity, adjust the tight dynamics of supporting of sprue 10, can avoid sprue 10's the tight dynamics of supporting to result in the unexpected outflow of glass fiber liquid slightly.
Specifically, the method comprises the following steps: the invention discloses a glass fiber gauze and production equipment thereof, which are used according to the following steps:
the first step is as follows: the glass fiber pellets are put into the furnace box 2 through the feed port 21 and heated by the heating plate 20 to melt the glass fiber pellets.
The second step is that: when the circulation water pump 14 is operated, the circulation water pump 14 pumps out the cooling water inside the water storage tank 3, and the cooling water flows through the cooling tank 13 having a spiral structure along the water outlet pipe 15 and finally flows into the water storage tank 3 again along the water return pipe 17.
The third step: the manual valve 19 is opened, after the glass fiber liquid to be melted completely flows into the pressurizing box 4 through the liquid leakage pipe 18, the first manual valve 19 is closed, the pressure pump 5 is operated, the pressure inside the pressure tank 4 is increased, the glass fiber liquid flows along the yarn guide channel 7, meanwhile, the cooling tank 13 is positioned inside the tube wall of the yarn guide tube 6, the cooling water can cool the glass fiber liquid when flowing through the cooling tank 13, under the action of pressure, the glass fiber liquid pushes the blocking block 10 and flows out along the yarn outlet channel 9 to form yarn, the yarn supporting roller 29 can support the yarn to be convenient for winding, it should be noted that the rear end of the threaded post 11 is provided with a hexagonal groove 31, and the threaded post 11 can be rotated by a hexagonal wrench, so as to change the elastic force of the spring 12, the tight force of the blocking block 10 is adjusted, so that the situation that the glass fiber liquid accidentally flows out due to the fact that the tight force of the blocking block 10 is small can be avoided.
The fourth step: inside cooling water flowed into storage water tank 3 along wet return 17 after the heat absorption of cooling bath 13 once more, make the inside cooling water temperature of storage water tank 3 rise, the radiating fin 22 of storage water tank 3 both sides terminal surface has accelerated the radiating efficiency of cooling water, the accessible is opened the blanking cover and is passed through filler 24 to the inside cooling water that adds of storage water tank 3, a side terminal surface of storage water tank 3 is equipped with liquid level window 23, observe the inside water level of storage water tank 3 through liquid level window 23, No. two manual valves 26 are opened to the accessible, the inside cooling water of storage water tank 3 discharges along drain pipe 25.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. A glass fiber gauze and production equipment thereof are characterized in that: comprises a base (1), a smelting furnace box (2), a water storage tank (3) and a pressurizing box (4), wherein the water storage tank (3) is fixedly arranged on one side of the upper end face of the base (1), the smelting furnace box (2) is fixedly arranged on the upper end face of the water storage tank (3), the pressurizing box (4) is fixedly arranged on the end face of the water storage tank (3) and leans against the upper side, a pressure pump (5) is fixedly arranged in the middle of the upper end face of the pressurizing box (4), the output end of the pressure pump (5) is positioned at the upper end inside the pressurizing box (4), a plurality of yarn guide tubes (6) are fixedly arranged on the lower end face of the pressurizing box (4), yarn guide channels (7) are arranged inside the yarn guide tubes (6), one end of each yarn guide channel (7) is communicated with the lower end inside the corresponding pressurizing box (4), yarn guide tubes (8) are fixedly connected with the lower side of the tail end of each yarn, go out yarn passageway (9) and lead and be equipped with between yarn passageway (7) sprue (10), the tail end inside of guide tube (6) is equipped with the internal thread groove, the internal thread connection of guide tube (6) tail end has screw thread post (11), be equipped with spring (12) between screw thread post (11) and sprue (10), the both ends of spring (12) respectively with sprue (10) and screw thread post (11) fixed connection.
2. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: the inside cooling bath (13) that has all inlayed helical structure of pipe wall of guide tube (6), the outside lower extreme fixed mounting of storage water tank (3) has circulating water pump (14), the water inlet of circulating water pump (14) is located the inside lower extreme of storage water tank (3), the delivery port of circulating water pump (14) is through outlet pipe (15) and cooling bath (13) end intercommunication of intaking, fixedly connected with connects water pipe (16) between guide tube (6), through connecting water pipe (16) intercommunication between cooling bath (13), the water outlet end of cooling bath (13) passes through wet return (17) and the inside intercommunication of storage water tank (3).
3. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: the internal lower end of the melting furnace box (2) is communicated with the internal upper end of the pressurizing box (4) through a liquid leakage pipe (18), a manual valve (19) is arranged on the liquid leakage pipe (18), a feeding port (21) is arranged at the upper end of the melting furnace box (2), heating plates (20) are embedded at two sides of the internal portion of the melting furnace box (2), a plurality of radiating fins (22) are evenly arranged on end faces of two sides of the water storage tank (3), a support (27) is fixedly arranged at the edge of the other side of the upper end face of the base (1), a roller shaft (28) is fixedly arranged at the upper end of the support (27), a yarn supporting roller (29) is arranged on the roller shaft (28), and the yarn supporting roller (29) is rotatably connected with the roller.
4. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: a liquid level window (23) is arranged on one side end face of the water storage tank (3), and transparent glass is embedded in the liquid level window (23).
5. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: a water filling opening (24) is formed in one side of the upper end face of the water storage tank (3), and a blocking cover is arranged on the water filling opening (24).
6. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: storage water tank (3) terminal surface downside is equipped with drain pipe (25), drain pipe (25) and the inside lower extreme intercommunication of storage water tank (3), be equipped with No. two manual valve (26) on drain pipe (25).
7. A glass fiber screen and its production apparatus as claimed in claim 3, wherein: the yarn supporting roller (29) is horizontally arranged, and the yarn supporting roller (29) is positioned at the upper end of one side of the yarn outlet tube (8).
8. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: supporting legs (30) are fixedly mounted at four corners of the lower end face of the base (1), and anti-slip pads are arranged at the lower ends of the supporting legs (30).
9. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: the inside of the water storage tank (3) is stored with cooling water.
10. A glass fiber screen and a production apparatus therefor according to claim 1, wherein: the tail end of the threaded column (11) is provided with a hexagonal groove (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254439.6A CN110903028B (en) | 2019-12-10 | 2019-12-10 | Glass fiber gauze and production equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254439.6A CN110903028B (en) | 2019-12-10 | 2019-12-10 | Glass fiber gauze and production equipment thereof |
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| Publication Number | Publication Date |
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| CN110903028A true CN110903028A (en) | 2020-03-24 |
| CN110903028B CN110903028B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911254439.6A Active CN110903028B (en) | 2019-12-10 | 2019-12-10 | Glass fiber gauze and production equipment thereof |
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| CN (1) | CN110903028B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358177A (en) * | 2020-11-11 | 2021-02-12 | 安徽省绩溪县华宇防火滤料有限公司 | Processing device for glass fibers |
| CN114031289A (en) * | 2021-09-28 | 2022-02-11 | 河海大学 | Device for producing high-performance and nano-grade glass fibers and working method |
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| CN209508031U (en) * | 2019-02-26 | 2019-10-18 | 安徽丹凤集团桐城玻璃纤维有限公司 | A kind of glass fiber yarn wire drawing machine with the function that prevents adhesion |
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| CN207294606U (en) * | 2017-10-14 | 2018-05-01 | 江苏佳成特种纤维有限公司 | A kind of yarn guide device for fiberglass drawing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112358177A (en) * | 2020-11-11 | 2021-02-12 | 安徽省绩溪县华宇防火滤料有限公司 | Processing device for glass fibers |
| CN114031289A (en) * | 2021-09-28 | 2022-02-11 | 河海大学 | Device for producing high-performance and nano-grade glass fibers and working method |
| CN114031289B (en) * | 2021-09-28 | 2023-05-12 | 河海大学 | Device for producing high-performance and nanoscale glass fibers and working method |
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| Publication number | Publication date |
|---|---|
| CN110903028B (en) | 2022-04-19 |
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Denomination of invention: Glass fiber gauze and its production equipment Effective date of registration: 20221117 Granted publication date: 20220419 Pledgee: Lixin Anhui rural commercial bank Limited by Share Ltd. Pledgor: LIXIN COUNTY FUYA GAUZE ELEMENT CO.,LTD. Registration number: Y2022980022221 |
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Date of cancellation: 20230726 Granted publication date: 20220419 Pledgee: Lixin Anhui rural commercial bank Limited by Share Ltd. Pledgor: LIXIN COUNTY FUYA GAUZE ELEMENT CO.,LTD. Registration number: Y2022980022221 |