CN102320726B - Vertical air extraction preparation process of vacuum glass - Google Patents
Vertical air extraction preparation process of vacuum glass Download PDFInfo
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- CN102320726B CN102320726B CN2011101653694A CN201110165369A CN102320726B CN 102320726 B CN102320726 B CN 102320726B CN 2011101653694 A CN2011101653694 A CN 2011101653694A CN 201110165369 A CN201110165369 A CN 201110165369A CN 102320726 B CN102320726 B CN 102320726B
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- 239000011521 glass Substances 0.000 title claims abstract description 103
- 238000000605 extraction Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000005357 flat glass Substances 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 4
- 230000000740 bleeding effect Effects 0.000 claims description 42
- 238000005086 pumping Methods 0.000 claims description 37
- 238000003723 Smelting Methods 0.000 claims description 26
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005816 glass manufacturing process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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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
- 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
- Joining Of Glass To Other Materials (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
The invention relates to a vertical air extraction preparation process of vacuum glass. The process comprises the following steps of: (1) combining pieces: putting a support and glass powder with low melting point or adhesive between upper and lower flat glass cut pieces, and arranging an air extraction glass tube on the side or the lateral surface of a corner; (2) sealing the edges by heating in a high-temperature heating box; (3) vertically placing the edge sealed glass into a cassette fixedly arranged on a bottom plate in an air extraction box in sequence; and (4) vacuumizing: opening a vacuum pump to vacuumize the cavity in the vacuum glass, performing hot melting sealing on the air extraction tube by adopting an electric fusing electrode after the set vacuum degree is achieved, cooling the glass to room temperature and then discharging the glass out of a furnace, and thus obtaining the vacuum glass. Multiple groups of positioning assemblies are uniformly distributed and fixedly arranged in the vacuumizing furnace at intervals in the vacuum glass manufacturing system, the vacuum glass can be installed in a vertical mode or a superposition mode, and the distance between the vacuum glass pieces is shortened and can reach 0.5 to 10 centimeters by calculation, so that the production number of the vacuum glass is greatly improved, the production efficiency is improved by at least two times, and the problem of low vacuum glass yield is effectively solved.
Description
Technical field
The invention belongs to the vacuum glass field, especially a kind of vacuum glass is erect the preparation technology who bleeds.
Background technology
At present, traditional vacuum glass manufacture method is to lay upholder at base plate glass, and then close sheet, edge sealing, make aspirating hole, install extraction pipe, two sheet glass are lain in heat edge sealing in the process furnace, take out again and vacuumizing, behind the fusing extraction pipe, can form vacuum glass.Perhaps also can in vacuum furnace, directly heat edge sealing and vacuumize.The shortcoming that above-mentioned two kinds of methods exist is: 1, the parallel glass supporter of placing up and down in the existing vacuum furnace, spacing between every layer of glass supporter is 15-25cm, and be equipped with the head of bleeding of being with chilled water unit on every layer of glass supporter, the head of bleeding connects the extraction pipe that vacuum glass is installed, and the vacuum unit is located at outside the stove, vacuumizes in stove and seals, finish the vacuum glass manufacturing thus, but this structure formation makes in the stove and in the unit volume complexity is set, and the number of plies is few, yields poorly; 2, the head unit complex structure of bleeding of existing vacuum glass is taken over difficulty, frangibility, and water cooling is easily leaked and is caused the accident generation; 3, existing vacuum glass exhaust tube is through hole, in the process of cooling of vacuum glass behind edge sealing, also retaining in its vacuum chamber has some moistures, though these moistures can adopt getter to absorb, also exists the problem of vacuum degree deficiency and influences the quality of vacuum glass; 4, existing process furnace and vacuum oven have function separately separately, not organically contact basically, and energy consumption is bigger.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of design science, the vacuum glass of effective, the vacuum glass quality height of bleeding, environmental protection and energy saving erects the preparation technology who bleeds.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of vacuum glass is erect the preparation technology who bleeds, and step is:
(1) closes sheet: with upper and lower sheet glass cut-parts, between glass, lay upholder, between upper and lower sheet glass, lay glass powder with low melting point or tackiness agent, at side or corner side the Glass tubing of bleeding is installed;
(2) heating edge sealing: the glass that will close behind the sheet overlays in the heat case successively, and the hydrodynamic reciprocating sealing case lid that closes heats 380 ℃-500 ℃ and carries out sintering, makes between upper and lower two sheet glass and forms edge sealing, comes out of the stove after being cooled to room temperature;
(3) put: the glass behind the edge sealing is erect successively be placed in the deck that the base plate in the cryogenic pumping case installs, separately the pipe connecting of bleeding on connecting respectively then, the electric smelting utmost point that cuts off the power supply is placed the extraction pipe both sides, the hydrodynamic reciprocating sealing case lid that closes is set between 30 ℃-300 ℃ the temperature in the cryogenic pumping case;
(4) vacuumize: open vacuum pump, the cavity in the vacuum glass vacuumized, reach the vacuum tightness of setting after, adopt the disconnected electrode pair extraction pipe of electric smelting to carry out heat sealing, come out of the stove after being cooled to room temperature, namely get vacuum glass.
And the described Glass tubing of bleeding is the blind hole Glass tubing, needs deblocking before pipe connecting is bled in connection.
And described heat case is made of hydrodynamic reciprocating sealing case lid, heating container, and hydrodynamic reciprocating sealing case lid sealing cover is contained on the heating container, in the both sides of hydrodynamic reciprocating sealing case lid traversing carriage is installed all, and the lower end of this traversing carriage is equipped with the roller that orbits.
And described cryogenic pumping case is made of hydrodynamic reciprocating sealing case lid and exhaust chamber, and hydrodynamic reciprocating sealing case lid sealing cover is contained on the exhaust chamber, in the both sides of hydrodynamic reciprocating sealing case lid traversing carriage is installed all, and the lower end of this traversing carriage is equipped with the roller that orbits.
And, between heat case and cryogenic pumping case, being communicated with by heating duct, the cryogenic pumping case is provided with a backwind tube, and the heating duct of heat case is equipped with stopping valve at the backwind tube front end.
And, the outer wall level in the exhaust chamber front of cryogenic pumping case installs the carriage of bleeding, uniform interval is fixed with the extraction pipe joint on this carriage of bleeding, the pipe connecting of bleeding that the extraction pipe of the vacuum glass on this extraction pipe joint in coaxial installation and the casing is communicated with, this pipe connecting of bleeding is connected with vacuum pump outside, outer wall above the carriage of bleeding in the exhaust chamber front of cryogenic pumping case is equipped with the disconnected switchboard of electric smelting, the disconnected switchboard of this electric smelting and the electric smelting in the casing utmost point that cuts off the power supply is electrically connected, at the pipe connecting of bleeding that the air extraction connector that the exhaust chamber inwall leaves with outer wall is installed of cryogenic pumping case is communicated with, this pipe connecting of bleeding is connected with the extraction pipe of vacuum glass in exhaust chamber; Install the glass support frame of a level at the exhaust chamber inwall of corresponding each pipe connecting of bleeding, all be fixed with the vacuum glass deck on the exhaust chamber base plate of corresponding each pipe connecting of bleeding and on the glass support frame that installs of exhaust chamber inwall, in corresponding each vacuum glass exhaust tube both sides that are connected with the pipe connecting of bleeding 1-2 the electric smelting outage utmost point is installed all, this electric smelting outage utmost point is connected with the disconnected switchboard of electric smelting.
Advantage of the present invention and beneficial effect are:
1, in the manufacturing process of this vacuum glass, what adopt is the system that is made of heat case and cryogenic pumping case, the hot air duct of cryogenic pumping case is communicated with the pipeline of heat case, thus, the waste heat that the cryogenic pumping case can take full advantage of the heat case carries out the interior moisture removal of vacuum glass vacuum chamber, not only environmental protection and energy saving, and can remove the interior moisture of vacuum glass, improve the quality of vacuum glass, and whole manufacturing system is organically combined, be conducive to realize the serialization production of vacuum glass, enhance productivity.
2, vacuum connection tube is installed at this vacuum technology for making glass uniform interval on the outer wall of the front of cryogenic pumping case, and the vacuum glass exhaust tube that the side in the cryogenic pumping case is bled directly connects vacuum connection tube, and vacuum connection tube connects the vacuum pump unit outside stove.Owing to be that side is bled, therefore can keep height between the glass supporter between 0.5cm-15cm, the stove that is connected of Glass tubing and vacuum pump unit carries out outward owing to bleed, the operating space is big, simple to operate easy, the joint efficiency height needn't arrange the water cooling circulation, simplify system, and can improve the vacuum glass output in the single process furnace.
3, in this vacuum technology for making glass, the extraction pipe of the installation in the heat case is the blind hole pipe, in the process of cooling after carrying out vacuum glass edge sealing, avoid outdoor gas to enter in the vacuum glass cavity thus, keep the dry air in the cavity, reduce the air specific weight in the cavity, improve the vacuum tightness in the cavity, carrying out cavity when vacuumizing, can improve pumping efficiency thus, reduce the work step of removing moisture in the cavity, ensured the quality of vacuum glass.
4, this vacuum glass making system uniform interval in vacuumizing stove is fixed with many group positioning components, can adopt vertical method or closed assembly method that vacuum glass is installed, dwindled the mutual spacing of vacuum glass, by measuring and calculating, spacing between the glass can reach between the 0.5-10cm, improved the production quantity of vacuum glass thus greatly, production efficiency improves more than at least one times, efficiently solves the problem that vacuum glass yields poorly.
Description of drawings
Fig. 1 is front view of the present invention;
Fig. 2 is the right view of the cryogenic pumping case of Fig. 1;
Fig. 3 is the vertical view (removing the hydrodynamic reciprocating sealing case lid) of the cryogenic pumping case of Fig. 2.
Embodiment
The invention will be further described below in conjunction with accompanying drawing, by specific embodiment, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
In order clearly to describe embodiments of the invention, at first narrate manufacturing system of the present invention.
Referring to Fig. 1,2,3, manufacturing system comprises heat case and cryogenic pumping case, the heat case is made of hydrodynamic reciprocating sealing case lid 10, heating container 11, the hydrodynamic reciprocating sealing case lid is the gate-type structure, and sealing cover is contained on the heating container, hydrodynamic reciprocating sealing case lid and heating container all are equipped with lagging material, both sides at the hydrodynamic reciprocating sealing case lid all are equipped with traversing carriage 12, the lower end of this traversing carriage is equipped with the roller (not having label) in track 13 operations, and realization hydrodynamic reciprocating sealing case lid opens or seal heating container under the horizontally slipping of traversing carriage.
The cryogenic pumping case is made of hydrodynamic reciprocating sealing case lid 2 and exhaust chamber 3, the hydrodynamic reciprocating sealing case lid also is the gate-type structure, and sealing cover is contained on the exhaust chamber, hydrodynamic reciprocating sealing case lid and exhaust chamber all are equipped with lagging material, both sides at the hydrodynamic reciprocating sealing case lid all are equipped with traversing carriage 4, the lower end of this traversing carriage is equipped with the roller (not having label) that orbits, and realization hydrodynamic reciprocating sealing case lid opens or seal exhaust chamber under the horizontally slipping of traversing carriage.
Among the present invention, the internal structure of heat case adopts existing stack assembly structure form, and present embodiment is no longer specifically given unnecessary details for this reason.Though adopted the structure of portable case lid in the present embodiment accompanying drawing, also can adopt more traditional opening door case lid form.
Be communicated with by heating duct 1 between heat case and cryogenic pumping case, the cryogenic pumping case is provided with a backwind tube 8, by this backwind tube, can realize the insulation of cryogenic pumping case.The heating duct of heat case is equipped with stopping valve 9 at the backwind tube front end.Perhaps also electric heater unit can be installed directly in the cryogenic pumping case.
The outer wall level in the exhaust chamber front 14 of cryogenic pumping case installs the carriage 16 of bleeding, uniform interval is fixed with extraction pipe joint 15 on this carriage of bleeding, the pipe connecting 22 of bleeding that the extraction pipe of the vacuum glass on this extraction pipe joint in coaxial installation and the casing is communicated with, this pipe connecting of bleeding is connected with vacuum pump 7 outside.
Outer wall above the carriage of bleeding in the exhaust chamber front of cryogenic pumping case is equipped with the disconnected switchboard 5 of electric smelting, and the disconnected switchboard of this electric smelting and the electric smelting in the casing utmost point 21 that cuts off the power supply is electrically connected.
At the pipe connecting of bleeding that the air extraction connector that the exhaust chamber inwall leaves with outer wall is installed of cryogenic pumping case is communicated with, this pipe connecting of bleeding is connected with the extraction pipe of vacuum glass in exhaust chamber; In the present embodiment, with being connected of extraction pipe of vacuum glass be in exhaust chamber, also this connection can be arranged on outside the exhaust chamber.Install the glass support frame 20 of a level at the exhaust chamber inwall of corresponding each pipe connecting of bleeding, all be fixed with vacuum glass deck 19 on the exhaust chamber base plate of corresponding each pipe connecting of bleeding and on the glass support frame that installs of exhaust chamber inwall, these two decks are to make the vacuum glass can vertical stable being installed in the exhaust chamber.Two electric smelting outage utmost points all are installed in corresponding each vacuum glass exhaust tube both sides that are connected with the pipe connecting of bleeding, these two electric smelting outage utmost points are connected with the disconnected switchboard of electric smelting, be used for vacuumizing back fusing extraction pipe, the electric smelting outage utmost point also can be resistance wire, flame gun etc.
In the present embodiment, be spaced apart 0.5cm～15cm between each vacuum glass.
In the present embodiment, adopt the setting mode to be installed in the exhaust chamber during vacuum glass, also can adopt stacked system up and down, it is the vacuum glass parallel mode, shelf is arranged therebetween, and extraction pipe and the electric smelting outage utmost point also adopt erects the form that arranges, and also can reach effect of the present invention equally.
The cryogenic pumping case also can be that box type heater also can be half to open wide or the open type platform of bleeding.
A kind of manufacturing process of vacuum glass, step is:
(1) closes sheet: with upper and lower sheet glass cut-parts and to make the limit poor, it also can be edging, between glass, lay upholder, between upper and lower sheet glass, lay glass powder with low melting point or tackiness agent, at side or the corner side welded and installed Glass tubing of bleeding, this Glass tubing of bleeding is blind hole Glass tubing or general Glass tubing;
(2) heating edge sealing: the glass that will close behind the sheet overlays in the heat case successively, and the hydrodynamic reciprocating sealing case lid that closes heats 380 ℃-500 ℃ and carries out sintering, makes between upper and lower two sheet glass and forms edge sealing, comes out of the stove after being cooled to room temperature;
(3) cryogenic pumping case discharging: the glass behind the edge sealing is stood up in the deck that installs on the base plate in exhaust chamber successively, the blind hole Glass tubing is then partly excised the extraction pipe blind hole, separately the pipe connecting of bleeding on connecting respectively then, the electric smelting utmost point that cuts off the power supply is placed the extraction pipe both sides, the hydrodynamic reciprocating sealing case lid closes, open the heating duct with the heat case, the temperature in the cryogenic pumping case is set between 30 ℃-300 ℃;
(4) open vacuum pump, the cavity in the vacuum glass vacuumized, reach the vacuum tightness of setting after, adopt the disconnected electrode pair extraction pipe of electric smelting to carry out heat sealing, come out of the stove after being cooled to room temperature, namely get vacuum glass.
Waste heat in the time of also can utilizing the cooling of heat case in the exhaust chamber is warming up to about 300 ℃, solely lays heating tube also can for the cryogenic pumping packing list.
Claims (2)
1. a vacuum glass is erect the preparation technology who bleeds, and it is characterized in that: step is:
⑴ close sheet: with upper and lower sheet glass cut-parts, lay upholder between glass, lay glass powder with low melting point or tackiness agent between upper and lower sheet glass, at side or corner side installing blind Glass tubing;
⑵ heat edge sealing: the glass that will close behind the sheet overlays in the heat case successively, and the hydrodynamic reciprocating sealing case lid that closes heats 380 ℃-500 ℃ and carries out sintering, makes between upper and lower two sheet glass and forms edge sealing, comes out of the stove after being cooled to room temperature;
⑶ put: the glass behind the edge sealing is erect successively be placed in the deck that the base plate in the cryogenic pumping case installs, separately the pipe connecting of bleeding on connecting respectively then, the electric smelting utmost point that cuts off the power supply is placed the extraction pipe both sides, the hydrodynamic reciprocating sealing case lid that closes is set between 30 ℃-300 ℃ the temperature in the cryogenic pumping case;
⑷ vacuumize: open vacuum pump, the cavity in the vacuum glass vacuumized, reach the vacuum tightness of setting after, adopt the disconnected electrode pair extraction pipe of electric smelting to carry out heat sealing, come out of the stove after being cooled to room temperature, namely get vacuum glass.
2. vacuum glass according to claim 1 is erect the preparation technology who bleeds, it is characterized in that: described heat case is made of hydrodynamic reciprocating sealing case lid, heating container, hydrodynamic reciprocating sealing case lid sealing cover is contained on the heating container, both sides at the hydrodynamic reciprocating sealing case lid all are equipped with traversing carriage, and the lower end of this traversing carriage is equipped with the roller that orbits;
Described cryogenic pumping case is made of hydrodynamic reciprocating sealing case lid and exhaust chamber, and hydrodynamic reciprocating sealing case lid sealing cover is contained on the exhaust chamber, in the both sides of hydrodynamic reciprocating sealing case lid traversing carriage is installed all, and the lower end of this traversing carriage is equipped with the roller that orbits;
Be communicated with by heating duct between heat case and cryogenic pumping case, the cryogenic pumping case is provided with a backwind tube, and the heating duct of heat case is equipped with stopping valve at the backwind tube front end;
The outer wall level in the exhaust chamber front of cryogenic pumping case installs the carriage of bleeding, uniform interval is fixed with the extraction pipe joint on this carriage of bleeding, the pipe connecting of bleeding that the extraction pipe of the vacuum glass on this extraction pipe joint in coaxial installation and the casing is communicated with, this pipe connecting of bleeding is connected with vacuum pump outside, outer wall above the carriage of bleeding in the exhaust chamber front of cryogenic pumping case is equipped with the disconnected switchboard of electric smelting, the disconnected switchboard of this electric smelting and the electric smelting in the casing utmost point that cuts off the power supply is electrically connected, at the pipe connecting of bleeding that the air extraction connector that the exhaust chamber inwall leaves with outer wall is installed of cryogenic pumping case is communicated with, this pipe connecting of bleeding is connected with the extraction pipe of vacuum glass in exhaust chamber; Install the glass support frame of a level at the exhaust chamber inwall of corresponding each pipe connecting of bleeding, all be fixed with the vacuum glass deck on the exhaust chamber base plate of corresponding each pipe connecting of bleeding and on the glass support frame that installs of exhaust chamber inwall, in corresponding each vacuum glass exhaust tube both sides that are connected with the pipe connecting of bleeding 1-2 the electric smelting outage utmost point is installed all, this electric smelting outage utmost point is connected with the disconnected switchboard of electric smelting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653694A CN102320726B (en) | 2011-06-20 | 2011-06-20 | Vertical air extraction preparation process of vacuum glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653694A CN102320726B (en) | 2011-06-20 | 2011-06-20 | Vertical air extraction preparation process of vacuum glass |
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| CN102320726A CN102320726A (en) | 2012-01-18 |
| CN102320726B true CN102320726B (en) | 2013-07-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915907B (en) * | 2016-11-04 | 2021-04-06 | 刘树青 | Processing method of one-step method for heating, edge sealing, vacuumizing and sealing vertically-placed vacuum glass |
| CN106830712B (en) * | 2017-04-07 | 2019-11-12 | 北京明日之星玻璃机械有限公司 | A kind of vertical continuous vaccum-pumping equipment of vacuum glass |
| CN109665727A (en) * | 2019-01-30 | 2019-04-23 | 左宪恤 | Vacuum glass is vertical to vacuumize carrier vehicle, vacuum evacuation device, preparation method and vacuum glass |
| CN114315176A (en) * | 2022-01-17 | 2022-04-12 | 天津沽上真空玻璃制造股份有限公司 | Processing method for improving utilization rate of heating furnace and vertical vacuum glass edge sealing support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1021832A (en) * | 1996-07-01 | 1998-01-23 | Chugai Ro Co Ltd | Gas evacuating and sealing method for plasma display panel and facility therefor |
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| CN1263698C (en) * | 1999-08-27 | 2006-07-12 | 北京新立基真空玻璃技术有限公司 | Method and device for mfg. vacuum glass |
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Effective date of registration: 20160505 Address after: 300000 Tianjin city Jinnan District xianshuigu poly Hing Road 7 No. 1 No. 601 Patentee after: Tianjin new vacuum glass Co.,Ltd. Address before: 300350 Haihe Industrial Zone, Jinnan District, Tianjin Patentee before: TIANJIN GUSHANG VACUUM GLASS MANUFACTURE Co.,Ltd. |
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Effective date of registration: 20160817 Address after: 300000 Tianjin Haihe Industrial Zone Patentee after: Tianjin vacuum glass manufacturing Limited by Share Ltd. Address before: 300000 Tianjin city Jinnan District xianshuigu poly Hing Road 7 No. 1 No. 601 Patentee before: Tianjin new vacuum glass Co.,Ltd. |
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Effective date of registration: 20191226 Address after: 271100 No.15, Qiantangjiang street, Laiwu high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Gushang vacuum glass technology Co.,Ltd. Address before: 300000 Tianjin Haihe Industrial Zone Patentee before: Tianjin vacuum glass manufacturing Limited by Share Ltd. |
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Address after: 271100 No.15 Qiantangjiang street, Laiwu high tech Zone, Jinan City, Shandong Province Patentee after: Wokam (Shandong) vacuum glass technology Co.,Ltd. Address before: 271100 No.15 Qiantangjiang street, Laiwu high tech Zone, Jinan City, Shandong Province Patentee before: Shandong Gushang vacuum glass technology Co.,Ltd. |
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Denomination of invention: A preparation process of vacuum glass vertical pumping Effective date of registration: 20220118 Granted publication date: 20130710 Pledgee: Laiwu Shandong rural commercial bank Limited by Share Ltd. Pledgor: Wokam (Shandong) vacuum glass technology Co.,Ltd. Registration number: Y2022980000680 |
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Date of cancellation: 20220530 Granted publication date: 20130710 Pledgee: Laiwu Shandong rural commercial bank Limited by Share Ltd. Pledgor: Wokam (Shandong) vacuum glass technology Co.,Ltd. Registration number: Y2022980000680 |
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Denomination of invention: A preparation process of vacuum glass vertical pumping Effective date of registration: 20220715 Granted publication date: 20130710 Pledgee: Laishang Bank Co.,Ltd. Development Zone sub branch Pledgor: Wokam (Shandong) vacuum glass technology Co.,Ltd. Registration number: Y2022980010438 |
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Date of cancellation: 20231019 Granted publication date: 20130710 Pledgee: Laishang Bank Co.,Ltd. Development Zone sub branch Pledgor: Wokam (Shandong) vacuum glass technology Co.,Ltd. Registration number: Y2022980010438 |
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