CN203319848U - Nonoxide chalcogenide glass leakage pouring production device - Google Patents
Nonoxide chalcogenide glass leakage pouring production device Download PDFInfo
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- CN203319848U CN203319848U CN2013203951508U CN201320395150U CN203319848U CN 203319848 U CN203319848 U CN 203319848U CN 2013203951508 U CN2013203951508 U CN 2013203951508U CN 201320395150 U CN201320395150 U CN 201320395150U CN 203319848 U CN203319848 U CN 203319848U
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- 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
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- 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
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Abstract
The utility model provides a nonoxide chalcogenide glass leakage pouring production device and a production method thereof, and belongs to the technical field of infrared optical glass manufacturing. The nonoxide chalcogenide glass leakage pouring production device mainly resolves the problems that existing equipment is not high in production efficiency but high in production cost. The nonoxide chalcogenide glass leakage pouring production device is mainly characterized in that an inner chamber of a smelter body is divided into a smelting chamber, a forming chamber and an atmosphere control chamber through partition plates; the obverse side of the smelting chamber and the obverse side of the forming chamber are respectively provided with a furnace door; a quartz crucible, a quartz cover plate, a crucible heating device, a stirrer, a pull rod and a material leakage pipe are arranged in the smelting chamber, a sphere is arranged at the lower end of the pull rod, and the upper end of the pull rod is connected with a supporting device; a forming mold, a forming platform and a mold heating device are arranged in the forming chamber; an air exhaust pipe and an air charging pipe are arranged in the atmosphere control chamber, the partition plate of the smelting chamber and the partition plate of the forming chamber are provided with a smelting chamber air vent hole and a forming chamber air vent hole respectively, and the partition plate of the smelting chamber and the partition plate of the forming chamber are adjacent to each other. The nonoxide chalcogenide glass leakage pouring production device has the advantages of being simple in structure, convenient to operate, reliable in performance, high in production efficiency and safe to use, and is mainly used for leakage pouring of nonoxide chalcogenide glass.
Description
Technical field
The utility model belongs to glasses for infrared use manufacturing technology field.Relate to a kind of non-oxidized substance chalcogenide glass and leak the notes production equipment.
Background technology
Along with social development, the application of it net supervision, security protection, automobile and infra-red thermal imaging system is more and more extensive, the non-oxidized substance chalcogenide glass increases rapidly as the demand of the good base mateiral of infrared thermal imagery, and progressively to high-quality, bigbore demand direction development.And the non-oxidized substance chalcogenide glass is compared the mode of production with oxide glass completely different, particularly can not in air, be produced, can not adopt traditional whipping appts to be stirred.Making at present the non-oxidized substance chalcogenide glass and usually adopt rocking furnace, as shown in Figure 1, is in ampoule by the non-oxidized substance chalcogenide glass admixtion handtailor container of packing into, then, by its Vacuum Package, puts into stove.Make furnace temperature rise to 1000 ℃ and make body of heater according to certain angle reciprocating swing, reach the purpose that inner glass liquid is mixed.Body of heater completes after chalcogenide glass is founded and cools to preset temperature according to the wobble frequency of the temperature of setting and setting.Ampoule is taken out from smelting furnace, be placed in water or air and make required block glass with fast speed chilling relatively.Along with the rapid growth with the market requirement of updating of melting technology, withstand voltage, the heat resistance of ampoule are had higher requirement.And current commercially available ampoule product does not all reach requirement, seriously restricted quality, batch and the cost of manufacture of non-oxidized substance chalcogenide glass.Although can adopt pouring type to overcome the above problems, inevitably there will be the cast striped during due to cast, thereby cause inside glass to exist striped to affect the image quality of the finished product.But to the high uniformity materials demand, design high-quality non-oxidized substance chalcogenide glass batch production device along with the high-performance optical system, effectively solve the demand of high-performance infrared system, enhance productivity, reduce production costs, reach Rapid Popularization market purpose.
Summary of the invention
The utility model provides a kind of non-oxidized substance chalcogenide glass to leak and has annotated production equipment, the characteristics such as have simple in structure, easy to operate, dependable performance, production efficiency is high, use is safe.
Technical solution of the present utility model is: a kind of non-oxidized substance chalcogenide glass leaks annotates production equipment, comprises the smelting furnace main body, it is characterized in that; In described smelting furnace main body, thorax is divided into working chamber, forming room and atmosphere watch-keeping cubicle three parts by dividing plate, and forming room is positioned under working chamber, and the atmosphere watch-keeping cubicle is positioned at the back of forming room and working chamber; A fire door is respectively opened in working chamber and forming room front, opens vision slit on fire door, and vision slit is installed resistant to elevated temperatures glass; Be provided with quartz crucible and quartzy cover plate in described working chamber, be provided with crucible heating device around the quartz crucible surrounding, agitator through quartzy cover plate and smelting furnace main body top is connected with the smelting furnace main body through high temperature resistant bearing respectively with pull bar, the leakage material pipe that it is semicircular structure that the quartz crucible bottom is provided with through dividing plate, upper end, the pull bar lower end is provided with a spheroid coordinated with leakage material pipe upper port, the pull bar upper end is connected with bracing or strutting arrangement, is provided with the smelting heat galvanic couple in working chamber; Be provided with forming mould in described forming room and support to the shaped platform of mould, the surrounding of forming mould and bottom are provided with mold heating device and moulding thermopair; Wear long respectively extraction pipe, the gas-filled valve of superfusion furnace main body of described atmosphere watch-keeping cubicle is connected with air-bleed system, inflation system, on the adjacent dividing plate of atmosphere watch-keeping cubicle and working chamber and forming room, is respectively equipped with working chamber's ventilating pit, forming room's ventilating pit.
Described smelting furnace main body surrounds skeleton construction by steel plate, and smelting furnace main body internal layer is thermal insulation layer and inner bag successively.
Described forming mould be shaped as landing shape wide at the top and narrow at the bottom, by quartz material, made, described smelting heat galvanic couple gos deep into working chamber's crucible medium position; Described moulding the installation of TC is at the middle part of the bottom of forming room forming heater; Be provided with the monitoring thermopair more than or in described forming room space, the convenient mold temperature of accurately controlling non-oxide glass.
Described dividing plate comprises transverse wall between working chamber and forming room and the vertical clapboard between atmosphere watch-keeping cubicle and working chamber and forming room.
The spheroid of the lower part of described pull bar and the hemisphere that leaks material pipe top have cooperatively interacted structure current velocity controller, control and leak material speed.
The quartzy cover plate of described quartz crucible upper design is used in conjunction with the volatilization of controlling raw material.
Adopt the method for the utility model production non-oxidized substance chalcogenide glass as follows:
, open working chamber's fire door, pull bar is put into the end of to, make spheroid and leak the semicircle geat that leaks in material pipe upper end and closely cooperate; Then will be according to a certain percentage load weighted starting material pack into fast in quartz crucible, close working chamber's fire door, working chamber's fire door closely is connected with the smelting furnace main body;
, open the switch of bleeding, reach 10 to smelting furnace main body inner chamber vacuum tightness
-2After Pa, close the switch of bleeding; Start gas-filled switching tube, to smelting furnace main body inner chamber, be filled with protective gas N
2Or Ar
2To 5000～10000Pa, make the smelting furnace body interior in pressure-fired;
, start melting heating unit switch, make working chamber be warming up to 1000 ℃; Then open the power supply of agitator, make agitator be moved down into the inner specified location of quartz crucible, locking stirrer stationary installation; Open the rotating switch of agitator, agitator is rotated, to temperature of glass liquid, drop to and Lou annotate temperature;
(4), mould to be formed is while being warming up to transition temperature Tg ± 30 ℃ scope, and pull bar is mentioned to certain altitude, and glass metal is flowed in the forming mould of forming room along leaking the material pipe slowly according to certain speed; Close the rotating switch of agitator after leakage has been annotated, and it is proposed to quartz crucible;
(5), then strengthen the aeration quantity of shielding gas, make the interior glass metal fast cooling of forming mould to annealing temperature, carry out according to annealing process, after temperature drops to room temperature, open forming room's fire door, forming mould is taken out, take out chunk glass.
The advantage the utlity model has and positively effect:
The utility model non-oxidized substance chalcogenide glass leaks annotates production equipment, owing to having adopted and the different brand new technical scheme of the airtight mode of production of rocking furnace, the outer integral plate that adopts of the utility model smelting furnace main body is welded into tower structure, and smelting furnace main body inner chamber is divided into working chamber, atmosphere watch-keeping cubicle and forming room's three parts by two dividing plates, and this three part interconnects and be relatively independent; The positive blow-on door respectively of working chamber and forming room, design vision slit on fire door, and the vision slit window uses resistant to elevated temperatures glass capsulation, and fire door is connected with main body by bolt, thereby makes smelting furnace main body inner chamber form enclosed space; Base insulating layer has guaranteed, along with the rising of internal temperature, agent structure sealing position is connected to the disadvantageous effect caused.The atmosphere Controlling System can fine assurance smelting furnace space non-oxidizing atmosphere, and the non-oxidized substance chalcogenide glass is avoided and oxygen reaction in melting with in leaking the injection forming process, guarantees that glass has good infrared transmission performance.The stirring system of design closely is connected with main body, not only guarantees the glass homogeneity of melting, and guarantees the relatively airtight of working chamber's inner chamber; Adopt current velocity controller, not only guarantee the melting requirement of non-oxidized substance chalcogenide glass, and can guarantee that glass leaks the realization of injection forming, solve and leak notes process crystallization, stripes problem, quality product is further improved.This structure design is simple, easy to operate, time saving and energy saving, alleviated labour intensity, thereby the production lot that makes single crucible no longer is subject to quartzy withstand voltage impact, more than single batch of turnout can expand 10kg to by original 1～2kg, and production specification is unrestricted, work efficiency is higher, and the production quality is further improved, the production cost of the unit's of greatly reducing glass, effectively improved the economic benefit of product.
The utility model is mainly used in the leakage of non-oxidized substance chalcogenide glass and annotates.
The accompanying drawing explanation
Fig. 1 is original non-oxidized substance chalcogenide glass production equipment structural representation.
Fig. 2 adopts the utility model non-oxidized substance chalcogenide glass to leak notes production equipment structure master to look diagrammatic cross-section.
Fig. 3 adopts the utility model non-oxidized substance chalcogenide glass to leak to annotate production equipment structure side-looking diagrammatic cross-section.
In figure: atmosphere watch-keeping cubicle 1, bracing or strutting arrangement 2, pull bar 3, high temperature resistant bearing 4, agitator 5, working chamber 6, thermal insulation layer 7, quartzy cover plate 8, crucible heating device 9, glass metal 10, quartz crucible 11, working chamber's fire door 12, forming room 13, forming room's fire door 14, mold heating device 15, forming mould 16, shaped platform 17, extraction pipe 18, forming room's ventilating pit 19, working chamber's ventilating pit 20, gas-filled valve 21, leak material pipe 22, moulding thermopair 23, smelting heat galvanic couple 24, vertical clapboard 25, transverse wall 26, smelting furnace main body 27.
Embodiment
For further understanding technology contents of the present utility model, Characteristic, now enumerate following instance, and be described with reference to the accompanying drawings as follows.
Smelting furnace main body 27 surrounds skeleton construction by steel plate, and smelting furnace main body 27 internal layers are then thermal insulation layer 7 and inner bag, thereby has formed the inner chamber of device.Smelting furnace main body 27 inner chambers are divided into working chamber 6, forming room 13 and atmosphere watch-keeping cubicle 1 three parts by transverse wall 26, vertical clapboard 25 by the interior thorax of smelting furnace main body 27.
In working chamber 6, by crucible heating device 9, quartz crucible 11, agitator 5, quartzy cover plate 8, temperature control unit and current velocity controller, formed.
Current velocity controller divides spheroid and the hemisphere that the leaks material pipe 22 tops structure that cooperatively interacts by pull bar 3 bottoms.
Forming room 13 is comprised of shaped platform 17, mold heating device 15, temperature control unit and forming mould 16.
Atmosphere watch-keeping cubicle 1 is connected with the extraction pipe 18 of air-bleed system and the gas-filled valve 21 of inflation system, and leaves two holes on vertical clapboard 25, and one is the working chamber's ventilating pit 20 be connected with working chamber 6, and another is the forming room's ventilating pit 19 be connected with forming room.
A fire door------working chamber fire door 12 and forming room's fire door 14 are respectively opened in working chamber 6 and forming room 13 fronts, respectively design view port on fire door, and view port adopts pyroceram and oven door sealing.
Working chamber's fire door 12 is connected with smelting furnace main body 27 by bolt with forming room fire door 14, thereby makes this three parts is relatively independent to be interconnected again, has formed relatively airtight space.
The pull bar 3 of agitator 5, current velocity controller is connected with smelting furnace main body 27 and partly adopts high temperature resistant bearing 4 to be connected, when so guaranteeing that pull bar 3 freely moves up and down and circumferential running upper and lower with agitator 5, and the effect that in guaranteeing again, thorax seals relatively.
Consider the characteristics of the easy oxidation of non-oxidized substance, at first design a relatively airtight space, and the space atmosphere of inner chamber is controlled by atmosphere watch-keeping cubicle 1, atmosphere watch-keeping cubicle 1 is positioned at the rear portion of smelting furnace main body 27, it is connected with melting chamber 6 by working chamber's ventilating pit 20, by forming room's ventilating pit 19, with forming room 13, is connected.And the working order of the atmosphere in atmosphere watch-keeping cubicle 1 by air-bleed system and qi of chong channel ascending adversely system determines, extraction pipe 18 1 ends of air-bleed system are connected with atmosphere watch-keeping cubicle 1, and the other end is connected with the vacuum pump of air-bleed system, for the air in the space by airtight, extracts out.Gas-filled valve 21 1 ends of inflation system are connected with atmosphere watch-keeping cubicle 1, and the other end is connected with the protectiveness gas cylinder of inflation system, and each system is controlled by independent valve.At first start air-bleed system during use the main body inner chamber is vacuumized, then close this system, start inflation system, in smelting furnace, be filled with protective gas as N
2Or Ar
2, make whole main body inner chamber be full of shielding gas, thereby avoid the non-oxidized substance raw material to cause infrared waveband absorbing to reduce the infrared transmission performance of non-oxidized substance chalcogenide glass at fusing and formative stage and oxygen reaction.Its Main Function is to guarantee that nonoxidizing atmosphere in whole melting and moulding process and the internal recycling of gas flow.
For easy to operate, in working chamber 6 and forming room 13 front portions stay respectively working chamber's fire door 12 and forming room's fire door 14, not only make working chamber's fire door 12 and 14 sealings of forming room's fire door, and convenient running status of observing in working chamber 6 and forming room 13, facilitate replacing, the starting material of quartz crucible to add and the taking-up of product blank.
Working chamber 6 is positioned at smelting furnace main body 27 inner chamber tops, and wherein crucible heating device 9 adopts the four sides type of heating, so not only guarantees the temperature that glass melting is required, and makes the temperature field more even.Quartz crucible 11 adopts the high purity quartz material to be prepared into special leakage material crucible, and wherein quartz crucible 11 protrudes upward a semicircular leakage geat from bottom, and this leakage expects that mouth is connected with leakage material pipe 22, and leakage is expected to manage 22 and is deep in forming room 13 by transverse wall 26.Quartzy cover plate 8 is used in conjunction with quartz crucible 11, has built the closed environment of a less, has reduced the volatilization of chalcogenide glass melting process, and the fluctuation of having avoided glass to form has guaranteed the stable of glass refraction.Leave two holes on quartzy cover plate 8, facilitate installation, the use of pull bar 3 and agitator 5.The smelting heat galvanic couple 24 of temperature control unit gos deep into the medium position of working chamber's 6 crucible heating devices 9 by smelting furnace main body 27 sides.
Whipping appts is comprised of Controlling System and agitator 5, and agitator 5 adopts the high purity quartz material to manufacture blade or closed-in construction.Controlling System is mainly to control agitator 5 to do upper and lower motion or circumference rotation according to processing requirement.Agitator 5 is connected with high temperature resistant bearing 4 with smelting furnace main body 27 connecting portions, when so not only having guaranteed the upper and lower and circumferential running of agitator 5 but also guarantee the effect of sealing relatively of interior thorax.
Current velocity controller is comprised of bracing or strutting arrangement 2 and pull bar 3 two portions, and pull bar 3 is connected with high temperature resistant bearing 4 with smelting furnace main body 27 connecting portions, guarantee like this pull bar 3 freely move up and down guarantee again simultaneously in the relative sealing function of thorax.Bracing or strutting arrangement 2 adopts lever principle to be designed, be positioned at smelting furnace main body 27 above, by axle, with pull bar 3, be connected, pull bar 3 gos deep in the quartz crucible 11 of working chamber 6 from the main body top, pull bar 3 bottoms connect a spherosome, and the semicircular leakage geat upwards stretched out in this spheroid and quartz crucible 11 is used in conjunction with.When glass melting, depress pull bar 3, spheroid and semicircular leakage geat are closely cooperated, avoid glass metal 10 to flow out from leaking material pipe 22; When needs leak notes, pull bar 3 is mentioned to the height of needs, can guarantee that on the one hand glass metal 10 flows into forming mould 16 smoothly, the height of mentioning according to pull bar 3 is on the other hand controlled the inflow velocity of glass metal 10, guarantees Forming Quality.
Forming mould 16 is used the high purity quartz material, and forming mould 16 shapes are designed to up big and down small halfpace structure.On the one hand that the quartzy coefficient of expansion is less of 20～30 * 10
-7/ ℃, and the coefficient of expansion of chalcogenide glass is greater than 150 * 10
-7/ ℃, after such being designed with is beneficial to moulding, chunk glass separates with quartz after expanding with heat and contract with cold, convenient to remove.
Mold heating device 15 is placed in the mould bottom, and mold heating device 15 is designed to the omnibearing type of heating of surrounding and bottom, and at mold heating device 15 mid-way, bottom installation forming thermopairs 23.Shaped platform 17 is positioned at heating unit 15 bottoms, on 22 times edges of leakage material pipe that the design of shaped platform 17 will guarantee crucible 11 and forming mould 16 along keeping sustained height.
Temperature controlling system is by temperature-control heat couple and composition of the control system, whole device is designed with smelting heat galvanic couple 24,23 two thermopairs of moulding thermopair, the middle part that smelting heat galvanic couple 24 stretches into working chamber's 16 crucible heating devices 9 by 6 body of heater sides, working chamber contacts with quartz crucible 11, be convenient to measure, monitor the smelting temperature of glass metal 10, assurance glass melting process is carried out according to technique; Moulding thermopair 23 inserts forming room's 13 heating unit 15 medium positions, is convenient to accurately test the temperature of forming mould 16, guarantees the condition of molding of glass in design, thereby avoids bursting, the appearance of crystallization.Separately demonstrate glass temperature leaking after injection forming completes, glass is carried out according to the annealing process temperature, eliminate the glass internal stress, guarantee not burst adding man-hour glass.Except the temperature-control heat couple that must install, the one or more monitoring thermopair of spatial placement that can also be when moulding, the convenient mold temperature of accurately controlling non-oxide glass.
Two kinds of products that the existing mode of production shown in Fig. 1 and the mode of production of the present utility model are produced carry out the quality contrast, wherein adopt the inside glass striped of the utility model production obviously to be better than the product of rocking furnace Fig. 1.
Claims (6)
1. a non-oxidized substance chalcogenide glass leaks and annotates production equipment, comprises the smelting furnace main body, it is characterized in that; In described smelting furnace main body, thorax is divided into working chamber, forming room and atmosphere watch-keeping cubicle three parts by dividing plate, and forming room is positioned under working chamber, and the atmosphere watch-keeping cubicle is positioned at the back of forming room and working chamber; A fire door is respectively opened in working chamber and forming room front, opens vision slit on fire door, and vision slit is installed resistant to elevated temperatures glass; Be provided with quartz crucible and quartzy cover plate in described working chamber, be provided with crucible heating device around the quartz crucible surrounding, agitator through quartzy cover plate and smelting furnace main body top is connected with the smelting furnace main body through high temperature resistant bearing respectively with pull bar, the leakage material pipe that it is semicircular structure that the quartz crucible bottom is provided with through dividing plate, upper end, the pull bar lower end is provided with a spheroid coordinated with leakage material pipe upper port, the pull bar upper end is connected with bracing or strutting arrangement, is provided with the smelting heat galvanic couple in working chamber; Be provided with forming mould in described forming room and support to the shaped platform of mould, the surrounding of forming mould and bottom are provided with mold heating device and moulding thermopair; Wear long respectively extraction pipe, the gas-filled valve of superfusion furnace main body of described atmosphere watch-keeping cubicle is connected with air-bleed system, inflation system, on the adjacent dividing plate of atmosphere watch-keeping cubicle and working chamber and forming room, is respectively equipped with working chamber's ventilating pit, forming room's ventilating pit.
2. a kind of non-oxidized substance chalcogenide glass according to claim 1 leaks and annotates production equipment, and it is characterized in that: described smelting furnace main body surrounds skeleton construction by steel plate, and smelting furnace main body internal layer is thermal insulation layer and inner bag successively.
3. a kind of non-oxidized substance chalcogenide glass according to claim 1 and 2 leaks and annotates production equipment, it is characterized in that: described forming mould be shaped as landing shape wide at the top and narrow at the bottom, material is high purity quartz.
4. a kind of non-oxidized substance chalcogenide glass according to claim 1 and 2 leaks and annotates production equipment, and it is characterized in that: described smelting heat galvanic couple gos deep into working chamber's crucible medium position; Described moulding the installation of TC is at the middle part of the bottom of forming room forming heater; Be provided with the monitoring thermopair more than or in described forming room space, the convenient mold temperature of accurately controlling non-oxide glass.
5. a kind of non-oxidized substance chalcogenide glass according to claim 1 and 2 leaks and annotates production equipment, it is characterized in that: described dividing plate comprises transverse wall between working chamber and forming room and the vertical clapboard between atmosphere watch-keeping cubicle and working chamber and forming room.
6. a kind of non-oxidized substance chalcogenide glass according to claim 1 and 2 leaks and annotates production equipment, it is characterized in that: the spheroid of the lower part of described pull bar and the hemisphere that leaks material pipe top have cooperatively interacted structure current velocity controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203951508U CN203319848U (en) | 2013-07-04 | 2013-07-04 | Nonoxide chalcogenide glass leakage pouring production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203951508U CN203319848U (en) | 2013-07-04 | 2013-07-04 | Nonoxide chalcogenide glass leakage pouring production device |
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| Publication Number | Publication Date |
|---|---|
| CN203319848U true CN203319848U (en) | 2013-12-04 |
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ID=49659217
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203951508U Expired - Fee Related CN203319848U (en) | 2013-07-04 | 2013-07-04 | Nonoxide chalcogenide glass leakage pouring production device |
Country Status (1)
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|---|---|
| CN (1) | CN203319848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359916A (en) * | 2013-07-04 | 2013-10-23 | 湖北新华光信息材料有限公司 | Leakage-injection production device for non-oxide chalcogenide glass and production method thereof |
| CN113754241A (en) * | 2021-09-08 | 2021-12-07 | 李依霖 | Optical glass smelting furnace |
-
2013
- 2013-07-04 CN CN2013203951508U patent/CN203319848U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359916A (en) * | 2013-07-04 | 2013-10-23 | 湖北新华光信息材料有限公司 | Leakage-injection production device for non-oxide chalcogenide glass and production method thereof |
| CN103359916B (en) * | 2013-07-04 | 2015-12-09 | 湖北新华光信息材料有限公司 | A kind of non-oxidized substance chalcogenide glass leaks note production equipment and production method thereof |
| CN113754241A (en) * | 2021-09-08 | 2021-12-07 | 李依霖 | Optical glass smelting furnace |
| CN113754241B (en) * | 2021-09-08 | 2023-08-08 | 泗县微腾知识产权运营有限公司 | Optical glass melting furnace |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20170704 |