CN107572752A - For making the method for mixing of vial - Google Patents
For making the method for mixing of vial Download PDFInfo
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- CN107572752A CN107572752A CN201710866795.8A CN201710866795A CN107572752A CN 107572752 A CN107572752 A CN 107572752A CN 201710866795 A CN201710866795 A CN 201710866795A CN 107572752 A CN107572752 A CN 107572752A
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- chamber
- mixing
- gear
- cullet
- coarse crushing
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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
Abstract
The present invention relates to glass manufacture technology field, and in particular to a kind of method for mixing for being used to make vial, carries out batch mixing using mixing device, method for mixing comprises the following steps：A, raw material cleans；B, cullet are crushed；C, crushed quartz sand；D, soda ash is added；E, batch mixing.Crushing and batch mixing can disposably be completed using this method for mixing, and the granularity of glass cullet after crushing is more than the granularity of quartz sand, founds quick, with short production cycle, obtained strength of glass height.
Description
Technical field
The present invention relates to glass manufacture technology field, and in particular to a kind of method for mixing for being used to make vial.
Background technology
The packing container of glass material has nontoxic, tasteless, transparent, attractive in appearance, good barrier property, airtight, abundant raw material is general
Many advantages, such as cleaning low, heat-resisting, pressure-resistant, resistance to all over, price；Both can high temperature sterilization, also can cryopreservation；Therefore it is beer, fruit
The preferred packaging material of many beverages such as tea, Wild Jujube Juice.At present, the method for making vial mainly includes the following steps that：It is 1. former
Expect preprocessing.By raw material（Primary raw material：Quartz sand）Crush.2. mixed material.3. found.Glass batch is in tank furnace or tank furnace
Interior carry out high temperature（1550~1600 degree）Heating, is allowed to form liquid glass.4. it is molded.
To save production cost, some producers add cullet in the feed at present, and industry will be crushing and unqualified
Glassware, glass metal is quenched in water to caused glass fragment and society in obtained glass fragment and production process
The discarded object of upper glass, is referred to as cullet.Waste can be not only made full use of using cullet, and under reasonable employment also
The melting process of glass can be accelerated, reduce the heat consumption of glass smelting, produced so as to reduce the production cost of glass and increase
Amount.Especially in the producer of some making bottles, use is especially extensive.
People need each to crush in independent reducing mechanism mostly when crushed quartz sand and cullet at present
After complete quartz sand and cullet, then it can just enter after mixing the materials such as quartz sand, cullet and soda ash on single mixing equipment
Row is founded, cumbersome, production cycle length, and to adopt granularity suitable for the quartz sand and cullet being mixed to get, and causes founding
During cullet preferentially reacted with soda ash, and quartz sand after reaction, dissolving is difficult, the whole slack-off change of melting process
Difference, last obtained strength of glass are relatively low.
The content of the invention
It is an object of the invention to provide a kind of method for mixing for being used to make vial, it disposably can complete to crush and mix
Material, and the granularity of glass cullet after crushing is more than the granularity of quartz sand, founds quick, with short production cycle, obtained strength of glass height.
To reach above-mentioned purpose, base case of the invention is as follows：For making the method for mixing of vial, using batch mixing
Device carries out batch mixing, and mixing device includes motor and casing, coarse crushing chamber, chamber in small, broken bits, charging chamber and mixing chamber are provided with casing；Slightly
Broken chamber is communicated with the coarse fodder mouth for putting into cullet, and coarse crushing intracavitary is provided with the 3rd gear, the coarse crushing for pulverizing cullet
Wheel and the wide-meshed screen for sieving the cullet after pulverizing, the 3rd gear connect with coarse crushing wheel, and wide-meshed screen is located under coarse crushing wheel
Side；Charging chamber is communicated with the charge door for putting into soda ash, and is connected provided with second gear and with second gear in charging chamber
Agitating shaft；Chamber in small, broken bits is communicated with the fines mouth for putting into quartz sand, and intracavitary in small, broken bits is provided with first gear, for pulverizing quartz
The wheel in small, broken bits of sand and the fine screen mesh for sieving the quartz sand after pulverizing, first gear and wheel connection in small, broken bits, fine screen mesh is positioned at thin
The lower section of broken wheel, and the aperture of fine screen mesh is less than the aperture of wide-meshed screen；The output shaft of motor is connected with first gear, the first tooth
Wheel, second gear and the 3rd gear engage successively, and the diameter of first gear, second gear and the 3rd gear becomes big successively；It is mixed
Material chamber is connected with coarse crushing chamber, chamber in small, broken bits, charging chamber, and the paddle for mixed material is provided with mixing chamber, and paddle is with stirring
Mix axis connection；
Method for mixing comprises the following steps：
A, raw material cleans：Cullet and quartz sand are respectively washed with water；
B, cullet are crushed：According to the mass fraction, 10~30 parts of cullet are added in coarse crushing chamber from coarse fodder mouth, using coarse crushing
Wheel pulverizes cullet, and is sieved by wide-meshed screen, into mixing chamber；
C, crushed quartz sand：According to the mass fraction, 50~60 parts of quartz sand is added in chamber in small, broken bits from fines mouth, use is in small, broken bits
Rolling rubble sand, and sieved by fine screen mesh, into mixing chamber；
D, soda ash is added：According to the mass fraction, 20~30 parts of soda ash is added in charging chamber from charge door, and enters soda ash
In mixing chamber；
E, batch mixing：Cullet, quartz sand and soda ash are stirred by paddle, mixed, the rotating speed of the paddle for 40~
80rpm。
The operation principle of mixing device is in above-mentioned technical proposal：Start motor, first gear, second gear and the 3rd
Gear rotates successively, and wheel, agitating shaft and coarse crushing wheel in small, broken bits also and then rotate；Distinguish simultaneously from coarse fodder mouth, charge door and fines mouth
Add cullet, soda ash and quartz sand；Cullet are grinded up in the presence of coarse crushing wheel, and the cullet particle diameter after pulverizing is small
When the aperture of wide-meshed screen, cullet enter mixing chamber from wide-meshed screen；Quartz sand is grinded up in the presence of wheel in small, broken bits, until grinding
When quartz sand particle size after broken is less than the aperture of fine screen mesh, quartz sand enters mixing chamber from fine screen mesh；Soda ash enters through charging chamber
Enter mixing chamber, same to cullet, quartz sand are well mixed in the presence of paddle together.
The beneficial effect of above-mentioned technical proposal is：
1st, with by same grinder crush the skill that to cause obtained quartz sand and granularity of glass cullet suitable in the prior art
Art scheme is compared, and the technical program is crushed by the way that quartz sand and cullet are respectively placed in coarse crushing chamber and chamber in small, broken bits, is set simultaneously
The wide-meshed screen particle diameter put in coarse crushing chamber and chamber in small, broken bits is more than fine screen mesh particle diameter so that the particle diameter of cullet is more than in last batch mixing
The particle diameter of quartz sand, so, quartz sand and cullet can be reacted with soda ash simultaneously during founding, and be founded rapidly,
The glass metal composition for founding to obtain is uniform, and obtained strength of glass is high.
2nd, with needing first each to be crushed material in the prior art, then the skill that could be founded after material is mixed
Art is compared, and the technical program only needs to add raw material from different dog-houses, you can disposable to complete crushing, batch mixing, very big journey
Operating procedure is simplified on degree, reduces the amount of labour of worker, shortens the production cycle.
3rd, the technical program only needs the effect that a motor can be achieved to allow coarse crushing wheel, agitating shaft and wheel in small, broken bits to rotate simultaneously
Fruit, power set are few.
4th, the diameter of first gear, second gear and the 3rd gear becomes big successively in the technical program, passes through each gear
Diameter change causes the rotating speed of first gear to be more than the rotating speed of the 3rd gear, while dexterously utilizes the middle transition of second gear
Effect so that the rotating speed of the obvious gap of the rotating speed of first gear and the 3rd gear generation, such coarse crushing wheel and wheel in small, broken bits also can
Obvious gap is produced, the quartz sand size that the larger wheel in small, broken bits of rotating speed pulverizes to obtain is smaller, and efficiency is higher, and rotating speed is less
The granularity of glass cullet that coarse crushing wheel pulverizes to obtain is larger, further ensures the particle size differences of cullet and quartz sand.
5th, the speed of pulverizing of cullet pulverizes speed less than quartz sand in the technical program, and prepares in the raw material of glass
The amount of cullet is less than the amount of quartz sand, can so allow the cullet speed for entering hybrid chamber to be less than the speed of quartz sand,
So that cullet and quartz sand mixing are more uniform, along with the effect of paddle in stirring rod, each raw material mixed effect is more preferable,
Melting process more Quick uniform.
6th, cullet are cleaned with water, some impurity in cullet can be excluded, avoid impurity effect is follow-up from founding
Journey；Quartz sand is cleaned with water, can prevent quartz sand from producing dust in crushing process；Meanwhile quartz sand after cleaning and broken
Glass surface can also be uniformly distributed water membrane, and this moisture film can dissolve about 5% soda ash, be advantageous to improve follow-up found
Even property and efficiency.
Preferred scheme one：Based on scheme preferred scheme, coarse crushing intracavitary is additionally provided with hang plate, and hang plate is provided with magnetic
Iron；Hang plate one end connects with coarse fodder mouth, and the other end is located at below coarse crushing wheel.Magnet can be by the cullet not crushed also
Metal impurities are held, and prevent metal impurities enter in batch mixing from influenceing melting process, while the process of adsorbing metal occurs in broken glass
Before glass is not crushed also, rather than after crushing, such impurity-eliminating effect is more preferable.Cullet are rolled down to below coarse crushing wheel from hang plate
It is pulverized so that cullet with certain momentum, i.e., occur when being entered below coarse crushing wheel between coarse crushing wheel
Hit, crushing effect is more preferably.
Preferred scheme two：Preferably one preferred scheme, it is additionally provided with hang plate and some is used to crush cullet
Broken knife.Cullet can be carried out preliminary crushing by broken knife so that whether the cullet of block, sheet or tubulose can be by
Broken knife cuts into the fragment of fritter, is favorably improved follow-up coarse crushing wheel and pulverizes the uniformity.
Preferred scheme three：Based on scheme preferred scheme, the aperture of fine screen mesh is 0.5~0.8mm.The technical program
In quartz sand size it is moderate, be not in granularity it is excessive and be not easy fusing situation, will not also draw because of undersized
Play the powder when founding charging to fly upward, help to prevent compound to be layered caking in melting process, improve the uniform of compound
Property, so as to improve last obtained strength of glass.
Preferred scheme four：Preferably three preferred scheme, the aperture of wide-meshed screen is 2~20mm.By this technology
The cullet of wide-meshed screen sieving in scheme, not only produce larger difference so that generally speaking quartz sand with the granularity of quartz sand
The surface area contacted with soda ash is larger, and allows quartz sand and cullet to be reacted together with soda ash, and this level of broken glass
Glass can also be founded quickly in melting process, and overall shorten founds the cycle.
Brief description of the drawings
Fig. 1 is the structural representation of mixing device in the present invention；
Fig. 2 is the top view of first gear in Fig. 1, second gear and the 3rd gear；
Fig. 3 is the left view of broken knife in Fig. 1；
Fig. 4 is the top view of paddle in Fig. 1.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：It is casing 00, coarse crushing chamber 1, coarse fodder mouth 10, the 3rd gear 11, coarse crushing wheel 12, thick
Screen cloth 13, hang plate 14, magnet 15, broken knife 16, chamber in small, broken bits 2, fines mouth 20, first gear 21, it is in small, broken bits wheel 22, fine screen mesh 23,
Charging chamber 3, charge door 30, agitating shaft 31, second gear 32, dividing plate 4, mixing chamber 5, paddle 50.
Embodiment 1
Embodiment is substantially as shown in Figure 1：For making the method for mixing of vial, batch mixing, batch mixing are carried out using mixing device
Device includes motor and casing 00, and coarse crushing chamber 1, chamber in small, broken bits 2, charging chamber 3 and mixing chamber 5 are provided with casing 00；It is coarse crushing chamber 1, thin
Separated between broken chamber 2, charging chamber 3 by two pieces of dividing plates 4, and through hole is provided with two pieces of dividing plates 4.
The top of coarse crushing chamber 1 is communicated with the coarse fodder mouth 10 for putting into cullet, and is provided with the 3rd gear in coarse crushing chamber 1
11st, coarse crushing wheel 12 and the wide-meshed screen 13 for sieving the cullet after pulverizing, the 3rd gear 11 and coarse crushing wheel 12 are coaxially connected, slightly
The bottom of broken wheel 12 is provided with projection, and for pulverizing cullet, wide-meshed screen 13 is located at the lower section of coarse crushing wheel 12, and the table of wide-meshed screen 13
Face is provided with one layer of diamond layer with holes, when rolling cullet to increase coarse crushing wheel 12, extrusion stress that cullet are subject to.Coarse crushing
Hang plate 14 is additionally provided with chamber 1, hang plate 14 is provided with magnet 15, for adsorbing the metal impurities in cullet；Hang plate 14
Upper end connected with coarse fodder mouth 10, lower end is located at the lower section of coarse crushing wheel 12, and is additionally provided with hang plate 14 and some is used to crush broken glass
The broken knife 16 of glass, broken knife 16 are in rectangular pyramid, as shown in Figure 3.
The top of charging chamber 3 is communicated with the charge door 30 for the raw material that need not be crushed for putting into soda ash etc., and charging chamber 3
The interior agitating shaft 31 for being provided with second gear 32 and being connected with second gear 32.
The top of chamber 2 in small, broken bits is communicated with the fines mouth 20 for putting into quartz sand, and is provided with first gear in chamber in small, broken bits 2
21st, for pulverizing the wheel in small, broken bits 22 of quartz sand and fine screen mesh 23 for sieving the quartz sand after pulverizing, first gear 21 and thin
The broken connection of wheel 22, the bottom of wheel 22 in small, broken bits is provided with projection, for pulverizing quartz sand, with the side crushed in the prior art by mill
Formula is compared, and the technical program pulverizes cullet or quartz sand by projection, can keep cullet or quartz sand that tool is presented
There is the graininess of size, and be not to be milled into powdered, help to prevent that raw material is layered in follow-up melting process, melt
Melt better；Fine screen mesh 23 is positioned at the lower section of wheel 22 in small, broken bits, and the aperture of fine screen mesh 23 is less than the aperture of wide-meshed screen 13, dusting cover
The surface of net 23 also is provided with one layer of diamond layer with holes.
The output shaft of motor is connected with first gear 21, first gear 21, the gear 11 of second gear 32 and the 3rd pass through every
Through hole on plate 4 and engage successively, as shown in Fig. 2 and first gear 21, the gear 11 of second gear 32 and the 3rd diameter successively
Become big.
Mixing chamber 5 is connected with coarse crushing chamber 1, chamber in small, broken bits 2, charging chamber 3, and stirring for mixed material is provided with mixing chamber 5
Leaf 50 is mixed, paddle 50 is connected with agitating shaft 31, and paddle 50 is in three-back-shaped, and four are circumferentially evenly distributed with agitating shaft 31 and is stirred
Mix leaf 50, as shown in figure 4, four paddles to the mixed effect of raw material more preferably.
During specifically used mixing device, start motor, first gear 21, the gear 11 of second gear 32 and the 3rd turn successively
Dynamic, wheel 22, agitating shaft 31 and coarse crushing wheel 12 in small, broken bits also and then rotate；Divide simultaneously from coarse fodder mouth 10, charge door 30 and fines mouth 20
Jia Ru not cullet, soda ash and quartz sand；Cullet tumble from hang plate 14, first carry out preliminary crushing on broken knife 16, then
The bottom for falling into coarse crushing wheel 12 again is grinded up, when the cullet particle diameter after pulverizing is less than the aperture of wide-meshed screen 13, cullet
Enter mixing chamber 5 from wide-meshed screen 13；Quartz sand is grinded up in the presence of wheel 22 in small, broken bits, and the quartz sand particle size after pulverizing is small
When the aperture of fine screen mesh 23, quartz sand enters mixing chamber 5 from fine screen mesh 23；Soda ash enters mixing chamber 5 through charging chamber 3, together
Cullet, quartz sand are well mixed in the presence of paddle 50 together.
Method for mixing comprises the following steps：
A, raw material cleans：Cullet and quartz sand are respectively washed with water；
B, cullet are crushed：According to the mass fraction, 10 parts of cullet are added in coarse crushing chamber 1 from coarse fodder mouth 10, pulverized, and pass through
Wide-meshed screen 13 sieves, and into mixing chamber 5, the wherein aperture of wide-meshed screen 13 is 2mm；
C, crushed quartz sand：According to the mass fraction, 60 parts of quartz sands are added in chamber 2 in small, broken bits from fines mouth 20, using wheel in small, broken bits
22 pulverize quartz sand, and are sieved by fine screen mesh 23, and into mixing chamber 5, the wherein aperture of fine screen mesh 23 is 0.5mm；
D, soda ash is added：According to the mass fraction, 30 parts of soda ash are added in charging chamber 3 from charge door 30, and it is mixed to enter soda ash
Expect in chamber 5；
E, batch mixing：Cullet, quartz sand and soda ash are stirred by paddle 50, mixed, the rotating speed of the paddle 50 is
40rpm。
The present embodiment only needs to add raw material from different dog-houses, you can disposable to complete crushing, batch mixing, high degree
On simplify operating procedure, reduce the amount of labour of worker, shorten the production cycle, notify in the batch mixing that is prepared quartz sand and broken
The particle diameter of glass has larger difference, is advantageous to improve follow-up melting process.
Embodiment 2
The present embodiment and the difference of embodiment 1 are：The mass fraction of cullet is 20 in step B, and the aperture of wide-meshed screen is
10mm；The mass fraction of quartz sand is 55 in step C, and the aperture of fine screen mesh is 0.6mm；The mass fraction of soda ash is in step D
25；The rotating speed of paddle is 60rpm in step E.
Embodiment 3
The present embodiment and the difference of embodiment 1 are：The mass fraction of cullet is 30 in step B, and the aperture of wide-meshed screen is
20mm；The mass fraction of quartz sand is 50 in step C, and the aperture of fine screen mesh is 0.8mm；The mass fraction of soda ash is in step D
20；The rotating speed of paddle is 80rpm in step E.
It is worth noting that, charge door 30 can also add the raw material that need not be crushed in addition to soda ash, such as salt etc.,
Fines mouth 20 can also add needs the less raw material of granularity, such as lime stone, feldspar in addition to quartz sand, and what specifically adds
Raw material can determine depending on concrete technology.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, and these are implemented all without the influence present invention
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as embodiment can be used for the content for explaining claim.
Claims (5)
1. the method for mixing for making vial, it is characterised in that batch mixing, the mixing device bag are carried out using mixing device
Motor and casing are included, coarse crushing chamber, chamber in small, broken bits, charging chamber and mixing chamber are provided with the casing；The coarse crushing chamber, which is communicated with, to be used for
The coarse fodder mouth of cullet is put into, and coarse crushing intracavitary is provided with the 3rd gear, the coarse crushing wheel for pulverizing cullet and ground for sieving
The wide-meshed screen of cullet after broken, the 3rd gear connect with coarse crushing wheel, and the wide-meshed screen is located at the lower section of coarse crushing wheel；It is described
Charging chamber is communicated with the charge door for putting into soda ash, and provided with second gear and the stirring being connected with second gear in charging chamber
Axle；The chamber in small, broken bits is communicated with the fines mouth for putting into quartz sand, and intracavitary in small, broken bits is provided with first gear, for pulverizing quartz
The wheel in small, broken bits of sand and the fine screen mesh for sieving the quartz sand after pulverizing, the first gear and wheel connection in small, broken bits, the dusting cover
Net is located at the lower section of wheel in small, broken bits, and the aperture of fine screen mesh is less than the aperture of wide-meshed screen；The output shaft and first gear of the motor
Connection, the first gear, second gear and the 3rd gear engage successively, and first gear, second gear and the 3rd gear
Diameter becomes big successively；The mixing chamber connects with the coarse crushing chamber, chamber in small, broken bits, charging chamber, and is provided with mixing chamber and is used to mix
The paddle of raw material, the paddle and the stirring axis connection；
The method for mixing comprises the following steps：
A, raw material cleans：Cullet and quartz sand are respectively washed with water；
B, cullet are crushed：According to the mass fraction, 10~30 parts of cullet are added in coarse crushing chamber from coarse fodder mouth, using coarse crushing
Wheel pulverizes cullet, and is sieved by wide-meshed screen, into mixing chamber；
C, crushed quartz sand：According to the mass fraction, 50~60 parts of quartz sand is added in chamber in small, broken bits from fines mouth, use is in small, broken bits
Rolling rubble sand, and sieved by fine screen mesh, into mixing chamber；
D, soda ash is added：According to the mass fraction, 20~30 parts of soda ash is added in charging chamber from charge door, and enters soda ash
In mixing chamber；
E, batch mixing：Cullet, quartz sand and soda ash are stirred by paddle, mixed, the rotating speed of the paddle for 40~
80rpm。
2. the method for mixing according to claim 1 for being used to make vial, it is characterised in that the coarse crushing intracavitary is also set
There is hang plate, the hang plate is provided with magnet；Described hang plate one end connects with coarse fodder mouth, and the other end is located under coarse crushing wheel
Side.
3. the method for mixing according to claim 2 for being used to make vial, it is characterised in that also set on the hang plate
There are some broken knives for being used to crush cullet.
4. the method for mixing according to claim 1 for being used to make vial, it is characterised in that the aperture of the fine screen mesh
For 0.5~0.8mm.
5. the method for mixing according to claim 4 for being used to make vial, it is characterised in that the aperture of the wide-meshed screen
For 2~20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866795.8A CN107572752B (en) | 2017-09-22 | 2017-09-22 | Mixing method for manufacturing glass bottles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866795.8A CN107572752B (en) | 2017-09-22 | 2017-09-22 | Mixing method for manufacturing glass bottles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107572752A true CN107572752A (en) | 2018-01-12 |
| CN107572752B CN107572752B (en) | 2020-06-02 |
Family
ID=61038702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710866795.8A Active CN107572752B (en) | 2017-09-22 | 2017-09-22 | Mixing method for manufacturing glass bottles |
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| Country | Link |
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| CN (1) | CN107572752B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007084770A (en) * | 2005-09-26 | 2007-04-05 | Fujifilm Corp | Inkjet ink composition and process for producing the same |
| CN201157788Y (en) * | 2007-10-24 | 2008-12-03 | 潍坊汇英重机有限公司 | Coarse-fine double-purpose unobstructed crusher |
| CN101717191A (en) * | 2009-11-13 | 2010-06-02 | 中国家用电器研究院 | Opal glass suitable for full electrofusion forming and preparation process thereof |
-
2017
- 2017-09-22 CN CN201710866795.8A patent/CN107572752B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007084770A (en) * | 2005-09-26 | 2007-04-05 | Fujifilm Corp | Inkjet ink composition and process for producing the same |
| CN201157788Y (en) * | 2007-10-24 | 2008-12-03 | 潍坊汇英重机有限公司 | Coarse-fine double-purpose unobstructed crusher |
| CN101717191A (en) * | 2009-11-13 | 2010-06-02 | 中国家用电器研究院 | Opal glass suitable for full electrofusion forming and preparation process thereof |
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| Publication number | Publication date |
|---|---|
| CN107572752B (en) | 2020-06-02 |
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