CN115321792A - Glass tube preparation device and use method thereof - Google Patents
Glass tube preparation device and use method thereof Download PDFInfo
- Publication number
- CN115321792A CN115321792A CN202210894760.6A CN202210894760A CN115321792A CN 115321792 A CN115321792 A CN 115321792A CN 202210894760 A CN202210894760 A CN 202210894760A CN 115321792 A CN115321792 A CN 115321792A
- Authority
- CN
- China
- Prior art keywords
- glass tube
- glass
- cavity
- hole
- crucible
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims description 14
- 238000002360 preparation method Methods 0.000 title description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 16
- 239000006060 molten glass Substances 0.000 claims description 8
- 239000000156 glass melt Substances 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 208000002925 dental caries Diseases 0.000 abstract 1
- 238000004321 preservation Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B15/00—Drawing glass upwardly from the melt
- C03B15/14—Drawing tubes, cylinders, or rods from the melt
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention provides a glass tube manufacturing device, which comprises; furnace body (1), cut apart into two cavitys through cutting off (1 a) in furnace body (1), be equipped with heater (2 a) and thermoscope (2 b) in one of them cavity, be equipped with lift platform (4) outside furnace body (1), be equipped with staving (5) that can insert in furnace body (1) on lift platform (4), be equipped with gasket (6) and crucible (7) on staving (5) in proper order, be equipped with discharge opening (7 a) on crucible (7), be equipped with the through-hole that corresponds with discharge opening (7 a) on gasket (6), staving (5) and lift platform (4), be equipped with the drawbench (8) and cutter (9) that correspond the distribution with the through-hole outside furnace body (1). And putting the whole glass clinker into a crucible, heating until the whole glass clinker flows out of the discharge hole, then forming in a barrel body, introducing the formed glass tube to a drawing device, and adjusting the speed of the drawing device to realize the drawing of the glass tube.
Description
The technical field is as follows:
the invention relates to the field of glass preparation, in particular to a glass tube preparation device and a use method thereof.
Background art:
the glass tube has wide industrial and domestic application, such as glass tube instruments, medical glass tubes, packaged fine glass tubes, condensation tubes, solar heat collecting tubes and the like. At present, in the production method, the glass tube preparation technology mainly comprises direct forming and secondary drawing forming, most of the direct forming adopts mechanical preparation, and the glass melt is directly prepared into the glass tube, but the prepared glass tube has low dimensional precision, low roundness, complex process and the like, and the investment is large. The performance of the glass tube manufactured by the secondary drawing method is influenced by the apparent quality (such as bubbles, stripes, verticality and the like) and the dimensional accuracy of the prefabricated tube.
Therefore, the search for a new glass tube preparation method is of great significance to the preparation of high-precision glass tubes, and is also a key technology to be urgently broken through in the glass manufacturing field.
The invention content is as follows:
the invention aims to overcome the defects in the prior art and provides a novel glass tube preparation device and a use method thereof.
The application provides the following technical scheme:
an apparatus for producing a glass tube, comprising; the furnace body, its characterized in that: divide into first cavity and second cavity through cutting off in the furnace body with the inner chamber, be equipped with heater and thermoscope in first cavity, first through-hole and second through-hole have been seted up respectively to upper end and the lower extreme of second cavity, be equipped with lift platform outside the furnace body, be equipped with on lift platform and correspond the complex staving with first through-hole and second through-hole, be equipped with the gasket on the staving, be equipped with the crucible that can get into in the first cavity on the gasket, be equipped with the discharge opening on the crucible, be equipped with the through-hole that corresponds with the discharge opening on gasket, staving and lift platform, correspond the glass tube drawing ware that distributes with the through-hole in lift platform one side, be equipped with glass tube drawing ware in glass tube drawing ware one side.
On the basis of the technical scheme, the following further technical scheme can be provided:
the diameter ratio of the through hole to the barrel body is 1.
The height of the barrel body and the distance between the furnace body and the glass tube drawing device are 2.
And the lifting platform is provided with a heat-insulating layer correspondingly matched with the furnace body.
The diameter of discharge opening is D, the maximum liquid level height of the glass fuse-element after melting in the crucible is H, and H: d is less than or equal to 2.5.
The glass tube drawing device comprises a pair of drawing wheels which are distributed at intervals, wheel grooves are formed in the drawing wheels, rotating shafts which are correspondingly matched are arranged on each drawing wheel, and the two rotating shafts are distributed in parallel.
The use method of the glass tube preparation device is characterized in that: the method comprises the following steps of (a) putting glass clinker with proper size into a crucible, and then lifting a lifting platform to lift the crucible into a first cavity;
(b) Turning on the heater until the glass clinker is softened, wherein the maximum liquid level height of the molten glass is (H), and the molten glass freely flows out of the through hole;
(c) After the glass tube drawing machine was opened and the head of the glass flowing out was removed, the drawing machine was introduced to perform the production of a glass tube, and the rotational speed of the drawing machine and the temperature of the heating furnace were adjusted according to the diameter of the glass tube.
On the basis of the use method, a further technical scheme can be provided:
the temperature of the first cavity is 1000-1350 ℃; the temperature of the second cavity is 1050-1250 ℃.
The drawing speed of the glass tube drawing machine is 1-5 m/min.
Principle of glass tube formation:
because the molten glass has high viscosity, viscous force exists between the crucible and the crucible wall when the crucible moves, so that a velocity gradient exists, and the velocity of the position close to the wall is the lowest. Under the combined action of gravity, downward pulling force and the combined action of glass liquid and crucible wall viscous force, a conical dead zone can be formed in the glass liquid, the highest degree of the glass liquid is certain, the upper end of the formed conical dead zone is communicated with the liquid level, so that external air enters the conical dead zone, a hollow structure is formed in the glass liquid overflowing from the discharge hole, the drawing speed of the straightening device is high, the speed gradient of the glass during flowing is further improved, a tubular structure is formed, and a glass tube is obtained.
The invention has the advantages that:
the invention has the characteristics of simple structure, convenient operation, simple and easily controlled preparation process, no need of additional gas blowing in the production process, high yield, capability of realizing rapid and large-scale preparation, less defects of the prepared glass tube, high precision, high roundness, good linearity and the like, and has good application prospect.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
The specific implementation mode is as follows:
as shown in FIG. 1, an apparatus for producing a glass tube comprises; the furnace body 1, in the furnace body 1 through separating 1a will the inner chamber and divide into upper and lower distributed first cavity 2 and second cavity 3.
A heater 2a and a temperature detector 2b are arranged in the first cavity 2, the heater 2a is an electric heater in the prior art, so that the description is omitted here, and the temperature detector 2b is a thermocouple.
The upper end of the second cavity 3 is provided with a first through hole 3a communicated with the first cavity 2, and the lower end of the second cavity 3 is provided with a second through hole 3b communicated with the outside of the furnace body 1. The first through hole 3a and the second through hole 3b are coaxially distributed.
A lifting platform 4 is arranged below the furnace body 1, and a barrel body 5 which is made of aluminum oxide and has a hollow structure is arranged on the lifting platform 4. A gasket 6 made of alumina is covered on the upper end surface of the barrel body 5. A crucible 7 made of alumina or platinum is placed on the gasket 6. The crucible 7 can be lifted into the first chamber 2 by the lifting platform 4.
The bottom of the crucible 7 is provided with a discharge hole 7a, and the aperture of the discharge hole is D. Through holes 10 which correspond to the discharge holes 7a and are coaxially distributed are arranged on the gasket 6, the barrel body 5 and the lifting platform 4. So that the melted glass liquid can flow out from the discharge hole 7a and sequentially flow out through the gasket 6, the barrel body 5 and the lifting platform 4 through the through hole 10. A heat preservation layer 11 correspondingly matched with the lower end of the furnace body 1 is further laid on the lifting platform 4 outside the barrel body 5, and the temperature of the second cavity 3 is effectively guaranteed due to the heat preservation layer 11. The diameter ratio of the through hole 10 to the barrel body 5 is 1.
A glass tube drawing device 8 which is distributed corresponding to the through hole is arranged at the lower side of the lifting platform 4 below the furnace body 1, and a glass tube cutter 9 is arranged below the glass tube drawing device 8. Since the glass tube cutter 9 is prior art, its structure is not discussed here in detail. The height of the barrel body 5 and the distance from the furnace body 1 to the glass tube drawing device 8 are 2
The glass tube drawing device 8 comprises a pair of drawing wheels 8a which are distributed at intervals, the drawing wheels 8a are distributed at two sides of the axis of the through hole 10, and wheel grooves are arranged on the drawing wheels 8a, so that the formed outer wall of the glass tube is contacted with the wheel grooves and moves downwards under the traction of the wheel grooves. Every draws and all is equipped with corresponding complex pivot 8b on the system wheel 8a, two pivot 8b for parallel distribution. This allows the tension maintaining wheels 8a to be taken to apply a force to the glass tube on both sides of the glass tube.
Example 1:
the use method of the glass tube preparation device is characterized in that: the method comprises the following steps of (a) putting glass clinker with proper size into a crucible, and then lifting a lifting platform to lift the crucible into a first cavity 2.
(b) And (3) turning on a heater 2a, gradually increasing the temperature of the crucible, wherein the heating rate is 2-10 ℃/min, the heat preservation temperature of the crucible is 1060 ℃, the maximum liquid level height of the molten glass after melting is H, and the ratio of the maximum liquid level height to the maximum liquid level height of the molten glass is H: d =2. The molten glass flows out of the discharge hole and then flows to the glass tube drawing machine 8 through the through hole 10.
(c) After opening the glass tube drawing machine 8 and removing the glass head flowing out, the formed tubular glass was introduced into the drawing machine to draw a glass tube at a drawing speed of 4.5 m/min.
The outer diameter of the resulting glass tube was 5mm, the deviation of the outer diameter was. + -. 0.01mm, and the inner diameter was 1.5mm.
And then, producing glass tubes with different sizes by using two times of production data of different temperatures, different drawing speeds and different liquid level heights of glass liquid in the crucible (the different liquid level heights are controlled by the total amount of the glass clinker put into the crucible), wherein the specific data are as follows:
example Process parameters and test Performance
Claims (9)
1. An apparatus for producing a glass tube, comprising; furnace body (1), its characterized in that: the glass tube drawing furnace is characterized in that an inner cavity is divided into a first cavity (2) and a second cavity (3) through a partition (1 a) in a furnace body (1), a heater (2 a) and a temperature measurer (2 b) are arranged in the first cavity (2), a first through hole (3 a) and a second through hole (3 b) are respectively formed in the upper end and the lower end of the second cavity (3), a lifting platform (4) is arranged on the outer side of the furnace body (1), a barrel body (5) correspondingly matched with the first through hole (3 a) and the second through hole (3 b) is arranged on the lifting platform (4), a gasket (6) is arranged on the barrel body (5), a crucible (7) capable of entering the first cavity (2) is arranged on the gasket (6), a discharge hole (7 a) is formed in the crucible (7), through holes (10) corresponding to the discharge hole (7 a) are formed in the gasket (6), the barrel body (5) and the lifting platform (4), glass tube drawing devices (8) distributed on one side of the glass tube drawing device (8).
2. A glass tube manufacturing apparatus as defined in claim 1, wherein: the diameter ratio of the through hole (10) to the barrel body (5) is 1.
3. A glass tube manufacturing apparatus as defined in claim 1, wherein: the height of the barrel body (5) and the distance from the furnace body (1) to the glass tube drawing device (8) are 2.
4. A glass tube manufacturing apparatus as defined in claim 1, wherein: the lifting platform (4) is provided with a heat-insulating layer (11) correspondingly matched with the furnace body (1).
5. A glass tube manufacturing apparatus as defined in claim 1, wherein: the diameter of the discharge hole (7 a) is D, the maximum liquid level height of the melted glass melt in the crucible (7) is H, and H: d is less than or equal to 2.5.
6. A glass tube manufacturing apparatus as defined in claim 1, wherein: the glass tube drawing device (8) comprises a pair of drawing wheels (8 a) which are distributed at intervals, wheel grooves (8) are formed in the drawing wheels (8 a), rotating shafts (8 b) which are correspondingly matched are arranged on each drawing wheel (8 a), and the two rotating shafts (8 b) are distributed in parallel.
7. The use method of a glass tube manufacturing apparatus as set forth in claim 1, characterized in that: the method comprises the following steps of (a) putting glass clinker with proper size into a crucible, and then lifting a lifting platform to lift the crucible into a first cavity (2);
(b) Turning on the heater (2 a) until the glass clinker is softened, wherein the maximum liquid level height of the molten glass is (H), and the molten glass freely flows out from the through hole;
(c) After opening the glass tube drawing machine (8) and removing the glass head portion flowing out, the glass tube is produced by introducing the drawing machine, and the rotation speed of the drawing machine and the temperature of the heating furnace are adjusted according to the diameter of the glass tube.
8. The use of a glass tube manufacturing apparatus as set forth in claim 7, wherein: the temperature of the first cavity (2) is 1000-1350 ℃; the temperature of the second cavity (3) is 1050-1250 ℃.
9. The use of a glass tube manufacturing apparatus as set forth in claim 7, wherein: the drawing speed of the glass tube drawing device (8) is 1-5 m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210894760.6A CN115321792B (en) | 2022-07-28 | 2022-07-28 | Glass tube preparation device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210894760.6A CN115321792B (en) | 2022-07-28 | 2022-07-28 | Glass tube preparation device and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115321792A true CN115321792A (en) | 2022-11-11 |
| CN115321792B CN115321792B (en) | 2024-03-12 |
Family
ID=83919831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210894760.6A Active CN115321792B (en) | 2022-07-28 | 2022-07-28 | Glass tube preparation device and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115321792B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090064715A1 (en) * | 2006-03-10 | 2009-03-12 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for drawing a tubular strand of quartz glass |
| US20110113829A1 (en) * | 2008-06-27 | 2011-05-19 | Heraeus Quarzglas Gmbh & Co. Kg | Method and apparatus for producing a quartz glass cylinder |
| CN202246376U (en) * | 2011-09-16 | 2012-05-30 | 东海县圣达石英制品有限公司 | Continuous melting furnace capable of controlling large-caliber ultra-thick quartz glass tubes |
| US20120174629A1 (en) * | 2009-06-26 | 2012-07-12 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for drawing a quartz glass cylinder from a melt crucible |
| CN103771690A (en) * | 2014-02-25 | 2014-05-07 | 连云港市东海县宏伟石英制品有限公司 | Production method of large-caliber quartz tube and continuous smelting furnace |
| WO2014147164A1 (en) * | 2013-03-22 | 2014-09-25 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for drawing a bar, a pipe, or a plate made of quartz glass |
| CN108516668A (en) * | 2018-04-28 | 2018-09-11 | 中国建筑材料科学研究总院有限公司 | A kind of secondary drawing device of glass tube and method |
| CN112830670A (en) * | 2021-01-21 | 2021-05-25 | 陈富伦 | Quartz glass tube rod production furnace and quartz glass tube rod production method |
-
2022
- 2022-07-28 CN CN202210894760.6A patent/CN115321792B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090064715A1 (en) * | 2006-03-10 | 2009-03-12 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for drawing a tubular strand of quartz glass |
| US20110113829A1 (en) * | 2008-06-27 | 2011-05-19 | Heraeus Quarzglas Gmbh & Co. Kg | Method and apparatus for producing a quartz glass cylinder |
| US20120174629A1 (en) * | 2009-06-26 | 2012-07-12 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for drawing a quartz glass cylinder from a melt crucible |
| CN202246376U (en) * | 2011-09-16 | 2012-05-30 | 东海县圣达石英制品有限公司 | Continuous melting furnace capable of controlling large-caliber ultra-thick quartz glass tubes |
| WO2014147164A1 (en) * | 2013-03-22 | 2014-09-25 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for drawing a bar, a pipe, or a plate made of quartz glass |
| CN103771690A (en) * | 2014-02-25 | 2014-05-07 | 连云港市东海县宏伟石英制品有限公司 | Production method of large-caliber quartz tube and continuous smelting furnace |
| CN108516668A (en) * | 2018-04-28 | 2018-09-11 | 中国建筑材料科学研究总院有限公司 | A kind of secondary drawing device of glass tube and method |
| CN112830670A (en) * | 2021-01-21 | 2021-05-25 | 陈富伦 | Quartz glass tube rod production furnace and quartz glass tube rod production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115321792B (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070251271A1 (en) | Processes for the production of glass article and optical device | |
| US4820322A (en) | Method of and apparatus for overcladding a glass rod | |
| CN105358494B (en) | The method for manufacturing large-sized rock quartz glass tube | |
| JP3240356B2 (en) | Method for manufacturing polarization-maintaining single-mode optical fiber | |
| NO163448B (en) | PROCEDURE FOR MANUFACTURING AN OPTICAL FIBER. | |
| CZ305035B6 (en) | Process of and apparatus for continuous manufacture of calibrated circular or profiled glass tubes | |
| JPS6246934A (en) | Method and apparatus for producing base material for fluoride glass fiber | |
| WO2021139087A1 (en) | Fiber-core single crystallization post-treatment method and fiber-core single crystallization apparatus | |
| CN109516686B (en) | VAD sintered optical fiber preform mother rod stretching device and method | |
| CN103011575A (en) | Method for preparing multihole infrared chalcogenide glass photonic crystal optical fiber preform | |
| CN114347218A (en) | Preparation device and method of quartz crucible for improving tail oxygen content of czochralski single crystal silicon rod and quartz crucible | |
| CN105837009A (en) | Glass forming mold and forming device, and glass forming method | |
| US20230312391A1 (en) | Molding device and molding method for optical fiber preform | |
| TWI752378B (en) | On-line annealing of large fused quartz ingots | |
| JPH04270129A (en) | Method and device for manufacture of glass preform | |
| CN115321792A (en) | Glass tube preparation device and use method thereof | |
| CN113481590A (en) | Cooling screen for simultaneously drawing multiple silicon cores by using crushed silicon materials | |
| CN108975659B (en) | Glass tube manufacturing device and manufacturing method thereof | |
| US3937623A (en) | Method of making glass tubes | |
| CN215668282U (en) | Cooling screen for simultaneously drawing multiple silicon cores by using crushed silicon materials | |
| CN113277728B (en) | Optical fiber drawing furnace suitable for fluoride glass | |
| CN114277441A (en) | Method for improving oxygen content of crystal bar and single crystal furnace | |
| JP2012148960A (en) | Method for manufacturing silica glass crucible | |
| CN113087384A (en) | Simple preparation method of tapered glass optical fiber | |
| CN110183100A (en) | A method of quartz glass is prepared using big specification silica loosening body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |