CN106430910B - A kind of optical glass smelting furnace and melting method - Google Patents
A kind of optical glass smelting furnace and melting method Download PDFInfo
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- CN106430910B CN106430910B CN201610888056.4A CN201610888056A CN106430910B CN 106430910 B CN106430910 B CN 106430910B CN 201610888056 A CN201610888056 A CN 201610888056A CN 106430910 B CN106430910 B CN 106430910B
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- 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
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Abstract
A kind of entitled optical glass smelting furnace of the present invention and melting method.Belong to optical glass manufacturing technology field.It mainly solves the deficiency for needing to prepare glass dregs in advance when existing small viscosity optical glass continuous smelting, and qualified optical glass can be directly melting into raw material by the device.It is mainly characterized by comprising: by covering tilting melting sources furnace more, glass metal collects crucible, ingress pipe melt raw material simultaneously, form the glass metal of different refractivity, by adjusting single or multiple investment formula and corresponding smelting material amount, obtain the optical glass liquid for meeting standard requirements, the glass metal flows into fusing crucible, by being stirred, by flowing into clarification crucible communicating pipe, after high temperature is clarified and eliminates bubble, work crucible is flowed into via communicating pipe, using stirring, estriate glass metal is obtained, is flowed out by material leakage pipe, qualified optical glass strip material is shaped to.The present invention is especially suitable for must pass through the production of the optical glass product of previously prepared glass dregs.
Description
Technical field
The invention belongs to optical glass manufacturing technology fields.More particularly to a kind of optical glass smelting furnace and using the smelting furnace into
The melted method of row optical glass.
Background technique
Optical glass is melted basic using continuous smelting mode at present, to ensure the quality of optical glass product, for
The optical glass of small viscosity is generally produced using the continuous smelting furnace device of full platinum.Due to being waved in the formula of small viscosity optical glass
It is higher to send out constituent content, causes the refractive index fluctuation of optical glass very big, is carried out if directly put into batch in fusing crucible
Optical glass is melted, and refractive index can be because batch composition the reasons such as volatilize, fly upward and generate fluctuation when being melted, and optics
The optical specifications such as glass refractive index are very high, and it is bad that refractive index fluctuation will lead to imaging.In order to obtain the optics of high-quality
Raw material is generally first prefabricated into glass dregs by formula rate with single crucible by performance, and by by the glass of various high and low refractive index
Glass slag deployed according to a certain percentage, mixes the glass dregs for obtaining necessary requirement, then by this glass put into continuous smelting furnace into
Row melts, and obtains the more stable optical glass product of spectrophotometric data.For this reason, it may be necessary to a large amount of glass dregs are melted in advance,
Deposit is stand-by, accounts for weight ratio by different refractivity value to concoct the refractive index of glass dregs, calculates and meet standard requirements
Blending glass dregs are simultaneously put into continuous smelting furnace, obtain the optical glass product that high quality requires.As a result of which causing to produce
The production cycle of product is long, needs huge stocks thus to meet customer requirement, the turnover time of funds is long, at high cost.
Summary of the invention
The purpose of the present invention is to a kind of optical glass for not needing to carry out modular glass slag that above situation proposes
The device and method of continuous melting.
A kind of technical solution of optical glass smelting furnace of the present invention is: a kind of optical glass smelting furnace, including is located at respective
In independent heating space, the fusing crucible of noble metal material, clarification crucible, work crucible and its between communicating pipe for connecting, work crucible sets
There are third stirring rod and material leakage pipe, it is characterised in that: further include one to five set tilting melting sources furnace, be equipped with the first stirring rod
Glass metal collect crucible and ingress pipe, tilting melting sources furnace outlet is located in the glass metal in heating space and collects crucible
Top, ingress pipe one end are collected crucible with glass metal and are connect, and the other end is located at the top of fusing crucible；The fusing crucible is equipped with second and stirs
Mix stick or bubbling device.
Tilting melting sources furnace described in a kind of technical solution of optical glass smelting furnace of the present invention includes cylinder
Shape material pipe, heater and external refractory thermal insulation material；The outer both ends of the furnace body of cylindrical material pipe are wrapped up with ceramic fiber cotton, are made pottery
Bearing, driven gear are housed outside porcelain cellucotton, driven gear is connected to motor through driving gear；The cylinder material Guan Yushui
It is inclined to set between plane, feed opening and outflux are placed in outside heating region, and feed opening is higher than outflux, cylindrical material pipe
Heater is designed in middle section, and heating location external wraps up flame-proof thermal insulation material, forms high-heat region, it is ensured that cylinderization
Enough high temperature can be obtained in the middle part of expects pipe；The cylindrical material pipe can be rotated along its axis, and revolving speed is adjustable；Described
When cylindrical material pipe damages, it can be changed quickly.The tilting melting sources furnace quantity is set as a set of to five sets,
More it can cover while run；The tilting melting sources furnace specification is identical, the replaceable use of accessory.
Ingress pipe both ends described in a kind of technical solution of optical glass smelting furnace of the present invention are equipped with electrode terminal,
Thermocouple is welded on outer wall, outside is enclosed with ceramic fiber insulation heat preserving material.
The technical solution of optical glass melting method of the present invention is: a kind of molten using optical glass smelting furnace progress glass
The method of system, it is characterised in that the following steps are included:
(1) the optical glass formula being melted is chosen, collects the batch that crucible tricks prepares corresponding number by glass metal, respectively
Part batch is sufficiently mixed and makees separator；The component of each part batch can be identical, micro can also increase and decrease a certain
Kind component；
(2) each part batch with separator corresponding tilting melting sources furnace is put into respectively to melt
Glass metal is obtained, corresponding glass metal is flowed into through ingress pipe and collects in crucible, tentatively stir or be bubbled dress by the second stirring rod
Bubbling is set, keeps optical property tentatively uniform；It is sampled in ingress pipe exit, measures the refractive index of each glass metal；
(3) the glass metal fusing amount generated according to tilting melting sources furnace each in the unit time, passes through weighted average formula
Calculate the composite refractive index n for flowing into glass metal in fusing crucible；
(4) the difference for judging composite refractive index n and standard value, the extent of deviation depending on refractive index determine to appoint in adjustment batch
Fusing amount in one or more formula, or increase and decrease tilting melting sources furnace in the unit time of one or more sets equipment,
Keep composite refractive index n consistent with standard value.
Batch (1) prepared in step described in the technical solution of optical glass melting method of the present invention is
Three to five parts；The (2) tilting melting sources furnace mutually should be three to five sets in step.The same time is respectively in different tiltings
It puts into production, is can reduce because replacement material pipe or in which a set of tilting melting sources furnace break down in melting sources furnace,
Refractive index fluctuation is caused, product quality is influenced.More sets come into operation and can weaken because of replacement material pipe or tilting melting sources furnace
It is influenced caused by failure, reduces the fluctuation of refractive index, promote product with stable quality.
Tilting melting sources furnace inner cylinder material pipe is easily worn part in the present invention, can facilitate and be replaced.Cylinder
Shape material pipe can be rotated along its axis, and rotation speed accurately controls.Glass metal can control to exist by the regulation of rotation speed
Residence time in cylindrical material pipe, and glass metal can be made to material pipe uniform erosion, extend the service life of material pipe.The present invention
In also adjustable cylindrical material pipe and horizontal plane the elevation angle, adjust residence time of the glass metal in material pipe.
The present invention can not need the manufacture that previously prepared glass dregs carry out optical glass, pass through multiple cylindrical material pipes
Batch is melted simultaneously, the glass metal of formation imports in fusing crucible, by monitoring the different refractions for importing nozzle optical glass liquid
Rate, understands the dynamic optical performance of glass metal, and can trace regulation wherein individual batches refractive index, make the light of optical glass
Performance is learned to tend towards stability, is easily controllable.After batch generates glass metal in cylindrical material pipe in the present invention, glass is flowed directly into
Glass liquid is collected in crucible, and the glass metal of batch and generation and the time of contact of cylindrical material pipe are short, in addition cylindrical material pipe
Inner wall has viscous glassy layer protection, and small to the erosion of cylindrical material pipe, the impurity dissolved in glass metal is few, glass metal it is interior
Transmitance is high, and being therefore particularly suitable for must be by the production of the optical glass product of previously prepared glass dregs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical glass smelting furnace of the present invention.
Fig. 2 is cylindrical material pipe rotating mechanism schematic diagram.
In figure: mouth is added in 1. batches；2. cylindrical material pipe；3. heater；4. the first stirring rod；5. glass metal is received
Collect crucible；6. ingress pipe；7. the second stirring rod；8. glass metal；9. melting crucible；10. clarifying crucible；11. work crucible；12. third stirs
Stick；13. communicating pipe；14. material leakage pipe；15. driving gear；16. driven gear；17. ceramic fiber cotton；18. bearing；19. motor.
Specific embodiment
As shown in Figure 1.A kind of optical glass smelting furnace primary structure of the present invention includes tilting melting sources furnace, the first stirring
Stick 4, glass metal collect crucible 5, ingress pipe 6, and the second stirring rod 7 melts crucible 9, clarifies crucible 10, and work crucible 11, third stirring rod 12,
Communicating pipe 13 and material leakage pipe 14.Wherein, tilting melting sources furnace, the glass metal equipped with the first stirring rod 4 are collected crucible 5 and are imported
Pipe 6 can be one to five set.Tilting melting sources furnace is resistance to by batch addition mouth 1, cylindrical material pipe 2, heater 3 and outside
Fiery thermal insulation material composition, forms high-heat region, it is ensured that enough high temperature can be obtained in the middle part of cylindrical material pipe 2, it is cylindrical
It is inclined to set between material pipe 2 and horizontal plane, cylindrical material pipe 2 can be rotated along its axis, and revolving speed is adjustable, fire resistant heat preserving
Material is wrapped in the outside of heater 3.Cylindrical material pipe 2 is ceramic tube or quartz ampoule, outside cylindrical 2 furnace body of material pipe
Both ends wrap up cylindrical material pipe 2 with refractory ceramic fibre cotton 17 and are used for heat-insulated, fixing bearing 18, active outside thermal insulation layer
Gear 15, driven gear 16 and motor 19 form Rotatable mechanism, and the rotation of cylindrical material pipe 2 is driven by motor 19.Circle
When cylindricality material pipe 2 damages, it can be changed quickly.Tilting melting sources furnace more can be covered while be run.Tilting raw material is molten
It is identical to change furnace specification, the replaceable use of accessory.Mouth 1 is added in batch and tilting melting sources furnace is placed in heating zone
It is overseas.Cylindrical 2 outlet end of material pipe is located in the glass metal in heating space and collects 5 top of crucible, 6 one end of ingress pipe and glass
Glass liquid collects 5 bottom of crucible and is connected, and the other end is located at the top of fusing crucible 9.Glass metal is collected crucible 5 and is made of noble metal, in circle
Cylindricality or with bell-mouthed crucible, crucible mouth diameter is greater than cylindrical 2 discharge port bore of material pipe, is placed in corresponding heating furnace
Interior, glass metal collects temperature of glass liquid in crucible 5 can be adjusted control by heating furnace.First stirring rod 4 is mounted on glass metal
5 top of crucible is collected, the glass metal that material nozzle flows into can tentatively be stirred evenly by stirring rod, reach refractive index ndIt can
Clear measurement.Ingress pipe 6 is made of noble metal, and 6 both ends of ingress pipe are equipped with electrode terminal, can be powered directly by electrode terminal
Connect heating ingress pipe 6, thermocouple be welded on outer wall and carries out monitoring temperature, and by the viscosity of temperature control and regulation glass metal and
Flow, outside are enclosed with ceramic fiber insulation heat preserving material.It melts crucible 9 and is equipped with the second stirring rod 7.The fusing crucible of noble metal material
9, clarify crucible 10, work crucible 11 and its between connect be placed in communicating pipe 13 in respective independent heating space, pass through electrical power
The temperature in each position space of computer heating control realizes the melted function in corresponding site space.Second stirring rod is installed in fusing crucible 9
7, the refractive index n for injecting different ingress pipes 6dSlightly different glass metal is sufficiently stirred or stirs up and down, makes its refraction
Rate tends to consistent, mitigates the pressure that work crucible stirring rod eliminates striped.Communicating pipe 13 for connect fusing crucible 9 and clarification crucible 10,
Clarify crucible 10 and work crucible 11, the flow channel for glass metal.Crucible is clarified to overflow and eliminate for the bubble in glass metal.Work
Make that third stirring rod 12 is installed in crucible 11, spread glass metal internal composition sufficiently by stirring, tends to uniformly, it is final to eliminate
Glass metal intra-striate.Work 11 bottom of crucible connection material leakage pipe 14.One to five set tilting melting sources furnace outfit, which is referred to as, inclines
Inclined melting sources furnace I, II, III, IV, V, every suit tilting melting sources furnace are at an angle to the horizontal surface installation, and can
The flowing velocity of glass metal is controlled by adjusting the elevation angle, it is higher than glass fluid outlet side that mouth 1 is added in batch, it is ensured that cooperation
Glass metal is flowed out from outflux after material fusing, is injected into the glass metal for corresponding configuration with tilting melting sources furnace and is collected crucible
In 5, the glass metal of collection can be collected in glass metal is detained a period of time in crucible 5, is stirred for by matched first stirring rod 4
Uniformly, the glass metal stirred evenly is continuously injected into fusing crucible 9 by ingress pipe 6, is taken by timing from 6 outflux of ingress pipe
Sample can monitor the glass metal refractive index at this.The continuously investment batch of mouth 1 is added in batch, then ingress pipe 6 can be continuously by glass
Liquid is injected into fusing crucible 9, by covering tilting melting sources furnace more while putting into batch, then can inject multiply glass metal simultaneously
Stream enters in fusing crucible 9.In multiply glass metal injection fusing crucible 9, is continuously stirred, formed abundant by the second stirring rod 7
Mixed glass metal 8 is eliminated the bubble inside glass metal 8, is gone by carrying out high temperature clarification in the flow direction clarification of communicating pipe 13 crucible 10
The glass metal 8 of bubble removing cools down by communicating pipe 13, flows into work crucible 11, using being sufficiently stirred for third stirring rod 12,
The glass metal without striped bubble-free is formed, then is flowed into mold and is formed by material leakage pipe 14, obtains optical glass strip material or plate
Material.
Melting method of the invention is illustrated below.
Melting method of the invention is applicable to small viscosity optical glass production, does not need to carry out glass in advance in production process
Glass slag it is pre-prepared, can substantially shorten the production cycle.And the glass metal in investment fusing crucible 9 is in the condition of high temperature, and it is not prefabricated
The secondary temperature elevation process of glass dregs investing method, has saved the energy and water resource.It is direct plungeed into simultaneously by batch, reduces glass
Many intermediate links of glass slag preparation process avoid glass dregs processing bring pollution risk, to the transmitance of optical glass
It is obviously improved.Specifically, in optical glass production, being remarkably improved life using apparatus of the present invention and melting method
Efficiency is produced, production cost, the transmitance of improving optical glass are reduced.
The specific melting method of the present invention: it chooses and is carried out for melted method using three sets of tilting melting sources furnaces
It is bright, the optical glass formula being melted, a certain component of micro increase and decrease or the identical formula of use are chosen, prepares and fills
Divide and be mixed into three parts of batches, is labeled as A1Batch, A2Batch, A3Batch；Simultaneously in tilting melting sources furnace I
Put into batch A1, batch A is put into tilting melting sources furnace II2, cooperation is put into tilting melting sources furnace III
Expect A3, B is respectively obtained after fusing1、B2、B3Three kinds of glass metals flow into glass metal and collect in crucible 5, optical by tentatively stirring
It can tentatively uniformly can be sampled by importing nozzle, measure B1、B2、B3The refractive index of three kinds of glass metals measures its corresponding refraction
Rate is denoted as n1、n2、n3；According to the glass metal fusing amount that unit time introversion inclined melting sources furnace I, II, III generates, fusing amount
It is denoted as W1、W2、W3, pass through formula n=(n1*W1+n2*W2+ n3*W3)/(W1+ W2+W3) calculate to flow into and melt glass metal in crucible
Composite refractive index n；By the difference of composite refractive index n and standard value, obtain Δ n (, n0For standard refraction rate)；
It as Δ n > 0, indicates that the optical glass refractive index currently produced is higher, needs to adjust formula downwards, it can be by batch A1、A2、
A3The component contributed with high refractive index is reduced in any one or more batch in three, makes Δ n=0, reaches production
It is expected that；As Δ n < 0, indicates that the optical glass refractive index currently produced is relatively low, need to adjust upward formula, it can be by batch
A1、A2、A3The component contributed with high refractive index is increased in any one or more batch in three, makes Δ n=0, reaches
Production is expected；In actual production, Δ n is adjusted in certain deviation range without formula, and only Δ n deviation is more than to allow partially
Difference, the adjustment being just formulated；When Δ n deviation and tolerance difference are smaller, a kind of adjustment for cooperating material formula, Δ are only carried out
When n deviation and tolerance difference are big, the adjustment of a variety of cooperation material formulas is just carried out.
According to embodiment, the present invention will be described in more detail, but the present invention is not limited to these Examples.
Embodiment 1:
The optical glass that selection standard refractive index is 1.84666 is case, using optical glass smelting furnace device of the present invention into
Row optical glass is melted.Identical formula is put into using the feed opening of I, II, III 3 set of tilting melting sources furnace
The batch input amount of three sets of tilting melting sources furnaces is set as identical by the three casees batches prepared respectively, and is carried out the same
Technological temperature, the rotation speed of material pipe be also set as identical revolving speed carry out be melted glass metal.Every 2 hours in three ingress pipes
Mouth takes a sample, and the rapid quenching of -100 DEG C/H of progress measures its refractive index, I, II, III tilting melting sources furnace
Importing the corresponding refraction of sample at nozzle is respectively n1、n2、n3, intuitive observation for convenience, with Δ n1、Δn2、Δn3To express
n1、n2、n3With the difference of standard refraction rate, and measurement result is charged in table.Δ n is Δ n1、Δn2、Δn3Weighted average,
Convenient for monitoring the refractive index change conditions when glass production.The monitoring result that following table is 36 hours, data are as follows.
In terms of determination data: the batch prepared respectively using identical basic components puts into I, II, III tilting original
After expecting melting furnace, refractive index is fluctuation, since batch process for preparation, furnace process execution, operating status, component are waved
Hair degree difference, refractive index can have fluctuation.When discovery (6 hours) weighted average refractive index of continuous three points are relatively low
When, it can prejudge under current process, the optical glass refractive index that the batch of investment generates is relatively low, and is possible to further to protect
It holds or reduces, need to take preparatory intervention.Therefore adjustment formula is determined, it is contemplated that weighted average refractive index reduces less, only needs
Adjust one group of batch.The component of refractive index is promoted by being added in the batch of tilting melting sources furnace III, adjustment is inclined
The refractive index of optical glass quickly can be promoted to expected refractive index by the recipe ingredient of the feed opening of inclined melting sources furnace III,
Reach and do not need to carry out previously prepared glass dregs, directly produces qualified product.
Embodiment 2:
The optical glass that selection standard refractive index is 1.80610 is case, is filled using a kind of optical glass smelting furnace of the present invention
It sets and carries out being melted for optical glass.I, II, III, IV, V 5 set of tilting melting sources furnace is being used, it is complete in feed opening investment
It is identical to be formulated the five casees batches prepared respectively, the batch input amount of five sets of tilting melting sources furnaces is set as identical,
And the same technological temperature is carried out, the rotation speed of material pipe is also set as identical revolving speed and carries out that glass metal is melted.Every 2 hours
Five importing nozzles take a sample, and the rapid quenching of -100 DEG C/H of progress measures its refractive index, and I, II, III, IV, V inclines
The corresponding refraction of sample is respectively n at the importing nozzle of inclined melting sources furnace1、n2、n3、n4、n5, intuitive observation for convenience,
With Δ n1、Δn2、Δn3、Δn4、Δn5To express n1、n2、n3、n4、n5With the difference of standard refraction rate, and measurement result is charged to
In table.Δ n is Δ n1、Δn2、Δn3、n4、n5Weighted average monitors the refractive index change conditions when glass production.Under
The monitoring result that table is 48 hours, data are as follows.
In terms of determination data: the batch prepared respectively using identical basic components is inclined in investment I, II, III, IV, V
After inclined melting sources furnace, refractive index is bounce, melted due to being carried out using more set tilting melting sources furnaces, is averaged
Weighted refractive index fluctuation is smaller, and average weighted refractive index is relatively stable.In the cylindrical material pipe of tilting melting sources furnace IV
After there is burn through, the cylindrical material pipe more renewed is smaller on the influence of its average weighted refractive index, has little influence on average weighted
Refractive index.When using more set tilting melting sources furnaces carry out optical glass it is melted when, tricks is more, and composite refractive index is got over
It tends towards stability.But since limitation, the tilting melting sources furnace such as smelting furnace space and the sampling and measuring frequency should not be equipped with more, with small
It is excellent in five sets.
Claims (5)
1. a kind of optical glass smelting furnace including being located in respective independent heating space, the fusing crucible (9) of noble metal material, is clarified
Crucible (10), work crucible (11) and its between communicating pipe (13) for connecting, work crucible (11) is equipped with third stirring rod (12) and material leakage
It manages (14), it is characterised in that: further include the tilting melting sources furnace of three to five set noble metal materials, be equipped with the first stirring rod
(4) glass metal collects crucible (5) and ingress pipe (6), tilting melting sources furnace outlet are located in the glass in heating space
Glass liquid is collected above crucible (5), and ingress pipe (6) one end is collected crucible (5) with glass metal and connect, and the other end is located at the upper of fusing crucible (9)
Side；The fusing crucible (9) is equipped with the second stirring rod (7) or bubbling device.
2. a kind of optical glass smelting furnace according to claim 1, it is characterised in that: the tilting melting sources furnace packet
Cylindrical material pipe (2), heater (3) and external refractory thermal insulation material are included, heater (3) is designed in cylindrical material pipe (2)
Middle section；The outer both ends of the furnace body of cylindrical material pipe (2) are wrapped up with ceramic fiber cotton (17), and ceramic fiber cotton (17) is equipped with outside
Bearing (18), driven gear (16), driven gear (16) are connect through driving gear (15) with motor (19)；The cylinderization
It is inclined to set between expects pipe (2) and horizontal plane.
3. a kind of optical glass smelting furnace according to claim 1 or 2, it is characterised in that: described ingress pipe (6) both ends are set
There is electrode terminal, thermocouple is welded on outer wall, outside is enclosed with ceramic fiber insulation heat preserving material.
4. a kind of method for carrying out glass smelting using optical glass smelting furnace any in claim 1,2,3, it is characterised in that
The following steps are included:
(1) the optical glass formula being melted is chosen, collects the batch that crucible (5) tricks prepares corresponding number, each part by glass metal
Batch is sufficiently mixed and makees separator；The component of each part batch can be identical, can also micro increase and decrease a certain kind
Component；
(2) each part batch with separator corresponding tilting melting sources furnace is put into respectively to be melted to obtain
Glass metal flows into corresponding glass metal through ingress pipe (6) and collects in crucible (6), passes through the second stirring rod (7) tentatively stirring or drum
Bulb apparatus is bubbled, and keeps optical property tentatively uniform；It is sampled in ingress pipe (6) exit, measures the refractive index of each glass metal；
(3) the glass metal fusing amount generated according to tilting melting sources furnace each in the unit time, is calculated by weighted average formula
The composite refractive index n of fusing crucible (9) interior glass metal is flowed into out；
(4) the difference for judging composite refractive index n and standard value, the extent of deviation depending on refractive index determine any of adjustment batch
Or the fusing amount in multiple formulas, or increase and decrease tilting melting sources furnace in the unit time of one or more sets equipment, make comprehensive
It is consistent with standard value to close refractive index n.
5. according to claim 4 carry out glass smelting using optical glass smelting furnace any in claim 1,2,3
Method, it is characterised in that: (1) the middle batch prepared is three to five parts to the step；Step (2) in tilting melting sources furnace
It mutually should be three to five sets.
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| CN106430910B true CN106430910B (en) | 2019-06-18 |
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| CN108529853B (en) * | 2018-04-10 | 2019-12-27 | 湖北新华光信息材料有限公司 | Glass continuous melting furnace and melting method |
| CN110372204B (en) * | 2019-07-29 | 2021-11-23 | 中国建筑材料科学研究总院有限公司 | High-temperature and high-pressure resistant window glass and preparation method and application thereof |
| CN113754240B (en) * | 2021-09-22 | 2023-02-17 | 江苏德康医疗器械有限公司 | Bioactive glass preparation facilities |
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| CN102206032A (en) * | 2010-03-30 | 2011-10-05 | 湖北新华光信息材料有限公司 | Detachable optical glass successive melting furnace |
| CN102351419A (en) * | 2011-07-01 | 2012-02-15 | 湖北戈碧迦光电科技股份有限公司 | K9 optical glass and preparation method thereof |
| CN102910798A (en) * | 2011-08-01 | 2013-02-06 | Hoya株式会社 | Material melting furnace |
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- 2016-10-12 CN CN201610888056.4A patent/CN106430910B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765783A (en) * | 2003-07-31 | 2006-05-03 | Hoya株式会社 | Glass production apparatus and method |
| CN102206032A (en) * | 2010-03-30 | 2011-10-05 | 湖北新华光信息材料有限公司 | Detachable optical glass successive melting furnace |
| CN102351419A (en) * | 2011-07-01 | 2012-02-15 | 湖北戈碧迦光电科技股份有限公司 | K9 optical glass and preparation method thereof |
| CN102910798A (en) * | 2011-08-01 | 2013-02-06 | Hoya株式会社 | Material melting furnace |
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