CN107264164A - A kind of method that discarded glass prepares crystal glass handicraft - Google Patents
A kind of method that discarded glass prepares crystal glass handicraft Download PDFInfo
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- CN107264164A CN107264164A CN201710522039.3A CN201710522039A CN107264164A CN 107264164 A CN107264164 A CN 107264164A CN 201710522039 A CN201710522039 A CN 201710522039A CN 107264164 A CN107264164 A CN 107264164A
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- glass
- handicraft
- discarded
- crystal glass
- discarded glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method that discarded glass prepares crystal glass handicraft, processing, the mixing of material, granulation, the heating that the preparation method includes discarded glass are melted, tear drop enters the steps such as mould, cooling and demolding, annealing, finishing.The present invention is by choosing discarded glass for main component, the glass dust cleaned after over cleaning, ultrasound, ball milling, and crystal glass handicraft is obtained after high temperature melting, cooling, engraving, handicraft depiction is true to nature, color persistently, and is turned waste into wealth, and realizes environmental protection and economic dual value.
Description
Technical field
The present invention relates to crystal glass handicraft field, and in particular to a kind of discarded glass prepares crystal glass handicraft
Method.
Background technology
Existing crystal glass uses traditional flint glass material mostly, by production practices long-term both at home and abroad, it was demonstrated that
The crystal glass transparency and refractive index of lead tolerance 24% are higher, and lead oxide not only may be used as the important component of traditional crystal glass
To improve the refractive index of glass, dispersive power is also improved.But its production process high temperature flue gas and dust can be distributed to air
In, the healthy of workman is caused serious injury；During glassware use, it can precipitate into food and drink, make
Into secondary pollution.
At present, construction site and living area can produce substantial amounts of discarded glass bottle and scrap glass product daily, if can
To be recycled, the glassware of environmental protection is converted into, then will turn waste into wealth, greatly save resource and the energy.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art there is provided a kind of discarded glass to prepare crystal glass work
The method of skill product, selection discarded glass is main component, the glass dust cleaned after over cleaning, ultrasound, ball milling, high temperature melting
Crystal glass handicraft is obtained after change, cooling, engraving, handicraft depiction is true to nature, color persistently, and is turned waste into wealth, realized
Environmental protection and economic dual value.
The present invention solves technical problem and adopted the following technical scheme that：
A kind of method that discarded glass prepares crystal glass handicraft, comprises the following steps：
（1）The processing of discarded glass：Discarded glass is collected, is classified according to color and quality, it is useless to same class using alkali lye
Old glass immersion 8~12 hours, is further taken out and is eluted using clear water, and graininess is ground into after drying, blast drier is sent into, 50
Dried 1~2 hour at~60 DEG C, place into 30~40min of ultrasound in frequency 25KHz, 60~80W of power ultrasonic cleaning machine,
Dry ball milling 5~8 hours in ball grinder are then placed in, discarded glass micro mist is obtained；
（2）The mixing of material：The material of following percentage by weight, Na are added in discarded glass micro mist2CO3 10~20%,
Al2O3 5~10%, MgO 2~6%, CaCO3 3~8%, it is sufficiently mixed in ZnO 2~6%, feeding mixer, drying to water content
Less than 8%, then it is passed through the hybrid particles powder that micronizer obtains the mesh of particle diameter 200~300；
（3）Granulation：Hybrid particles powder is passed through double screw extruder, little particle is made in the pressure extrusion for applying 20~30Mpa
Shape；
（4）Heating fusing：By in the little particle input kiln of mixed material, kiln in-furnace temperature is increased to using temperature programming
1400~1500 DEG C, obtain glass metal；Appropriate colorant is added, colorant glass metal is obtained；
（5）Tear drop enters mould：Colorant glass metal is taken out using feeding rod, is flowed into mould, made afterwards in the way of natural drip
The surface of glass metal is sprayed with 1500~1600 DEG C of flame guns；
（6）Cooling and demolding：Being blown into cold wind is molded the glass metal in mould, after being down to 600~700 DEG C, is taken out out of mould；
（7）Annealing：The crystal glass of taking-up is naturally cooled into room temperature, and the carving at details is carried out according to default colored drawing pattern
Carve, the product of rupture or flaw is rejected in time；
（8）Finishing：Product after annealing is first ground off into burr using diamond disk, sandpaper disk is reused and further polishes,
The crystal glass handicraft is obtained after being cleaned using the purified water of pressurization.
Preferably, the step（1）Alkali lye prepared at 40~50 DEG C using sodium hydrate solid particle and 95% ethanol and
Into the consumption of ethanol is 100~200 times of sodium hydrate solid granular mass.
Preferably, the step（1）Dry ball milling uses vertical type square celestial body grinding machine, ball grinder choose hard alloy tank,
Zirconium oxide tank, nylon tank or polyurethane tank, drum speed are 400~500rpm/min, and discharging-material size is 0.02~0.04mm.
Preferably, the material of following percentage by weight, Na are added in the discarded glass micro mist2CO3 15%、Al2O3 8%、
MgO 3%、CaCO3 5%、ZnO 5%。
Preferably, the step（2）Ultramicro grinding uses air-flow crushing, is passed through the mixing of 5~10 DEG C of nitrogen and air
Gas, grinding time is 40~50min.
Preferably, the step（4）Temperature programming detailed process is：500~550 DEG C are warming up to 20~30 DEG C/min,
Keep 10~20min；1000~1100 DEG C are warming up to 30~40 DEG C/min, 15~25min is kept；With 35~45 DEG C/min liters
Temperature keeps 20~30min to 1400~1500 DEG C.
Preferably, the step（6）The cold wind being blown into is 10~20 DEG C of air, and blast is 0.06~0.08MPa.
Preferably, the step（7）Engraving carries out back of the body carving, circular engravure or embossment using laser carving machine.
Compared with prior art, the present invention has following beneficial effect：
（1）The preparation method of the crystal glass handicraft of the present invention, the main processing including discarded glass, the mixing of material, makes
Grain, heating fusing, tear drop enter the steps such as mould, cooling and demolding, annealing, finishing, by choosing discarded glass for main component, warp
Crystal glass handicraft, work are obtained after the glass dust cleaned after over cleaning, ultrasound, ball milling, high temperature melting, cooling, engraving
Skill product depiction is true to nature, and color persistently, and is turned waste into wealth, and realizes environmental protection and economic dual value.
（2）In the discarded glass processing procedure of the present invention, leaded less rejected glass can be filtered out and carried out at concentration
Reason, it is ensured that hypotoxicity and stability in production process；The alkali lye that sodium hydroxide and ethanol are formulated can remove glass table
The most of impurity and dirt of layer, the smooth and clean and tidy of glass surface can be kept after clear water flushing, drying；It is ultrasonically treated enter one
Step eliminates the impurity that surface is left, and coordinates the ball-milling method of low energy consumption by glass grinding into small powdered, with preferable
Machinability and repeatability.
（3）The heating fusing of the present invention is enabled to mixed material stable and fully melted using the method for temperature programming
Change, it is to avoid bursting or bursting apart for uneven heating, coordinate the addition of colorant, glass metal can be modulated into multiple color；Tear drop
Enter the convenient shape and the uniformity to handicraft of mould to be controlled, coordinate cold wind to be blown into so that die table cools.
（4）The engraving of the present invention and finishing, the handicraft back side in production process before can be lost and fuzzy figure
Case details is processed, and makes its pattern true to nature；And pattern preserves lasting, color is gorgeous, with higher ornamental value and warp
Ji benefit.
Embodiment
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
A kind of method that discarded glass prepares crystal glass handicraft, comprises the following steps：
（1）The processing of discarded glass：Discarded glass is collected, is classified according to color and quality, it is useless to same class using alkali lye
Old glass immersion 10 hours, is further taken out and is eluted using clear water, and graininess is ground into after drying, blast drier is sent into, at 55 DEG C
Lower drying 1.6 hours, places into ultrasound 32min in frequency 25KHz, 60~80W of power ultrasonic cleaning machine, is then placed in ball milling
Dry ball milling 6 hours in tank, obtain discarded glass micro mist；Wherein, alkali lye is existed using sodium hydrate solid particle and 95% ethanol
50 DEG C are formulated, and the consumption of ethanol is 160 times of sodium hydrate solid granular mass；Dry ball milling uses vertical type square celestial body
Grinding machine, ball grinder chooses hard alloy tank, and drum speed is 450rpm/min, and discharging-material size is 0.02~0.04mm.
（2）The mixing of material：The material of following percentage by weight, Na are added in discarded glass micro mist2CO3 15%、
Al2O3 8%、MgO 3%、CaCO3 5%th, it is sufficiently mixed in ZnO 5%, feeding mixer, drying to water content is less than 8%, then is passed through
Micronizer obtains the hybrid particles powder of the mesh of particle diameter 200~300.
（3）Granulation：Hybrid particles powder is passed through double screw extruder, apply 20~30Mpa pressure extrusion be made it is small
Graininess.
（4）Heating fusing：By in the little particle input kiln of mixed material, kiln in-furnace temperature is raised using temperature programming
To 1400~1500 DEG C, glass metal is obtained；Appropriate colorant is added, colorant glass metal is obtained；Temperature programming detailed process is：With
20~30 DEG C/min is warming up to 500~550 DEG C, keeps 10~20min；1000~1100 DEG C are warming up to 30~40 DEG C/min,
Keep 15~25min；1400~1500 DEG C are warming up to 35~45 DEG C/min, 20~30min is kept.
（5）Tear drop enters mould：Colorant glass metal is taken out using feeding rod, flowed into the way of natural drip in mould, it
The surface of glass metal is sprayed using 1500~1600 DEG C of flame gun afterwards.
（6）Cooling and demolding：Being blown into cold wind is molded the glass metal in mould, after being down to 600~700 DEG C, out of mould
Take out.The cold wind being blown into is 10~20 DEG C of air, and blast is 0.06~0.08MPa.
（7）Annealing：The crystal glass of taking-up is naturally cooled into room temperature, and carried out according to default colored drawing pattern at details
Engraving, in time reject rupture or flaw product.Engraving carries out back of the body carving, circular engravure or embossment using laser carving machine.
（8）Finishing：Product after annealing is first ground off into burr using diamond disk, sandpaper disk is reused and further beats
Mill, obtains the crystal glass handicraft after being cleaned using the purified water of pressurization.
Embodiment 2
A kind of method that discarded glass prepares crystal glass handicraft, comprises the following steps：
（1）The processing of discarded glass：Discarded glass is collected, is classified according to color and quality, it is useless to same class using alkali lye
Old glass immersion 11 hours, is further taken out and is eluted using clear water, and graininess is ground into after drying, blast drier is sent into, at 58 DEG C
Lower drying 2 hours, places into ultrasound 40min in frequency 25KHz, 60~80W of power ultrasonic cleaning machine, is then placed in ball grinder
Middle dry ball milling 7 hours, obtains discarded glass micro mist；Wherein, alkali lye uses sodium hydrate solid particle and 95% ethanol 40
~50 DEG C are formulated, and the consumption of ethanol is 180 times of sodium hydrate solid granular mass；Dry ball milling uses vertical type square star
Ball mill, ball grinder chooses zirconium oxide tank, and drum speed is 500rpm/min, and discharging-material size is 0.02~0.04mm.
（2）The mixing of material：The material of following percentage by weight, Na are added in discarded glass micro mist2CO3 15%、
Al2O3 7%、MgO 3%、CaCO3 5%th, it is sufficiently mixed in ZnO 6%, feeding mixer, drying to water content is less than 8%, then is passed through
Micronizer obtains the hybrid particles powder of the mesh of particle diameter 200~300.
（3）Granulation：Hybrid particles powder is passed through double screw extruder, apply 20~30Mpa pressure extrusion be made it is small
Graininess.
（4）Heating fusing：By in the little particle input kiln of mixed material, kiln in-furnace temperature is raised using temperature programming
To 1400~1500 DEG C, glass metal is obtained；Appropriate colorant is added, colorant glass metal is obtained；Temperature programming detailed process is：With
20~30 DEG C/min is warming up to 500~550 DEG C, keeps 10~20min；1000~1100 DEG C are warming up to 30~40 DEG C/min,
Keep 15~25min；1400~1500 DEG C are warming up to 35~45 DEG C/min, 20~30min is kept.
（5）Tear drop enters mould：Colorant glass metal is taken out using feeding rod, flowed into the way of natural drip in mould, it
The surface of glass metal is sprayed using 1500~1600 DEG C of flame gun afterwards.
（6）Cooling and demolding：Being blown into cold wind is molded the glass metal in mould, after being down to 600~700 DEG C, out of mould
Take out.The cold wind being blown into is 10~20 DEG C of air, and blast is 0.06~0.08MPa.
（7）Annealing：The crystal glass of taking-up is naturally cooled into room temperature, and carried out according to default colored drawing pattern at details
Engraving, in time reject rupture or flaw product.Engraving carries out back of the body carving, circular engravure or embossment using laser carving machine.
（8）Finishing：Product after annealing is first ground off into burr using diamond disk, sandpaper disk is reused and further beats
Mill, obtains the crystal glass handicraft after being cleaned using the purified water of pressurization.
Embodiment 3
A kind of method that discarded glass prepares crystal glass handicraft, comprises the following steps：
（1）The processing of discarded glass：Discarded glass is collected, is classified according to color and quality, it is useless to same class using alkali lye
Old glass immersion 8~12 hours, is further taken out and is eluted using clear water, and graininess is ground into after drying, blast drier is sent into, 60
Dried 1 hour at DEG C, place into ultrasound 30min in frequency 25KHz, 60~80W of power ultrasonic cleaning machine, be then placed in ball milling
Dry ball milling 8 hours in tank, obtain discarded glass micro mist；Wherein, alkali lye is existed using sodium hydrate solid particle and 95% ethanol
48 DEG C are formulated, and the consumption of ethanol is 200 times of sodium hydrate solid granular mass；Dry ball milling uses vertical type square celestial body
Grinding machine, ball grinder chooses hard alloy tank, zirconium oxide tank, nylon tank or polyurethane tank, and drum speed is 500rpm/min, discharging
Granularity is 0.02~0.04mm.
（2）The mixing of material：The material of following percentage by weight, Na are added in discarded glass micro mist2CO3 18%、
Al2O3 9%、MgO 2%、CaCO3 5%th, it is sufficiently mixed in ZnO 3%, feeding mixer, drying to water content is less than 8%, then is passed through
Micronizer obtains the hybrid particles powder of the mesh of particle diameter 200~300.
（3）Granulation：Hybrid particles powder is passed through double screw extruder, apply 20~30Mpa pressure extrusion be made it is small
Graininess.
（4）Heating fusing：By in the little particle input kiln of mixed material, kiln in-furnace temperature is raised using temperature programming
To 1400~1500 DEG C, glass metal is obtained；Appropriate colorant is added, colorant glass metal is obtained；Temperature programming detailed process is：With
20~30 DEG C/min is warming up to 500~550 DEG C, keeps 10~20min；1000~1100 DEG C are warming up to 30~40 DEG C/min,
Keep 15~25min；1400~1500 DEG C are warming up to 35~45 DEG C/min, 20~30min is kept.
（5）Tear drop enters mould：Colorant glass metal is taken out using feeding rod, flowed into the way of natural drip in mould, it
The surface of glass metal is sprayed using 1500~1600 DEG C of flame gun afterwards.
（6）Cooling and demolding：Being blown into cold wind is molded the glass metal in mould, after being down to 600~700 DEG C, out of mould
Take out.The cold wind being blown into is 10~20 DEG C of air, and blast is 0.06~0.08MPa.
（7）Annealing：The crystal glass of taking-up is naturally cooled into room temperature, and carried out according to default colored drawing pattern at details
Engraving, in time reject rupture or flaw product.Engraving carries out back of the body carving, circular engravure or embossment using laser carving machine.
（8）Finishing：Product after annealing is first ground off into burr using diamond disk, sandpaper disk is reused and further beats
Mill, obtains the crystal glass handicraft after being cleaned using the purified water of pressurization.
Embodiment 4
Performance test：The survey of lead content, refractive index, abbe number has been carried out to above-described embodiment 1-3 Glass Crafts prepared
Examination, as a result see the table below.
The crystal glass handicraft test result of table 1.
| Embodiment | Lead content（%） | Refractive index n（≥） | Abbe number vd（≥） |
| 1 | 6.5 | 1.64 | 85 |
| 2 | 8.2 | 1.57 | 79 |
| 3 | 10.4 | 1.55 | 76 |
As can be seen from Table 1, crystal glass handicraft lead content of the invention is smaller, and refractive index and abbe number are larger, and tool is beautiful
The decorative effect of sight.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, also should be regarded as the present invention
Protection domain.
Claims (8)
1. a kind of method that discarded glass prepares crystal glass handicraft, it is characterised in that comprise the following steps：
（1）The processing of discarded glass：Discarded glass is collected, is classified according to color and quality, it is useless to same class using alkali lye
Old glass immersion 8~12 hours, is further taken out and is eluted using clear water, and graininess is ground into after drying, blast drier is sent into, 50
Dried 1~2 hour at~60 DEG C, place into 30~40min of ultrasound in frequency 25KHz, 60~80W of power ultrasonic cleaning machine,
Dry ball milling 5~8 hours in ball grinder are then placed in, discarded glass micro mist is obtained；
（2）The mixing of material：The material of following percentage by weight, Na are added in discarded glass micro mist2CO3 10~20%,
Al2O3 5~10%, MgO 2~6%, CaCO3 3~8%, it is sufficiently mixed in ZnO 2~6%, feeding mixer, drying to water content
Less than 8%, then it is passed through the hybrid particles powder that micronizer obtains the mesh of particle diameter 200~300；
（3）Granulation：Hybrid particles powder is passed through double screw extruder, little particle is made in the pressure extrusion for applying 20~30Mpa
Shape；
（4）Heating fusing：By in the little particle input kiln of mixed material, kiln in-furnace temperature is increased to using temperature programming
1400~1500 DEG C, obtain glass metal；Appropriate colorant is added, colorant glass metal is obtained；
（5）Tear drop enters mould：Colorant glass metal is taken out using feeding rod, is flowed into mould, made afterwards in the way of natural drip
The surface of glass metal is sprayed with 1500~1600 DEG C of flame guns；
（6）Cooling and demolding：Being blown into cold wind is molded the glass metal in mould, after being down to 600~700 DEG C, is taken out out of mould；
（7）Annealing：The crystal glass of taking-up is naturally cooled into room temperature, and the carving at details is carried out according to default colored drawing pattern
Carve, the product of rupture or flaw is rejected in time；
（8）Finishing：Product after annealing is first ground off into burr using diamond disk, sandpaper disk is reused and further polishes,
The crystal glass handicraft is obtained after being cleaned using the purified water of pressurization.
2. the method that discarded glass according to claim 1 prepares crystal glass handicraft, it is characterised in that the step
（1）Alkali lye is formulated using sodium hydrate solid particle and 95% ethanol at 40~50 DEG C, and the consumption of ethanol is sodium hydroxide
100~200 times of mass of solid particles.
3. the method that discarded glass according to claim 1 prepares crystal glass handicraft, it is characterised in that the step
（1）Dry ball milling uses vertical type square celestial body grinding machine, and ball grinder chooses hard alloy tank, zirconium oxide tank, nylon tank or polyurethane
Tank, drum speed is 400~500rpm/min, and discharging-material size is 0.02~0.04mm.
4. the method that discarded glass according to claim 1 prepares crystal glass handicraft, it is characterised in that described waste and old
The material of following percentage by weight, Na are added in glass micro mist2CO3 15%、Al2O3 8%、MgO 3%、CaCO3 5%、ZnO 5%。
5. the method that discarded glass according to claim 1 prepares crystal glass handicraft, it is characterised in that the step
（2）Ultramicro grinding uses air-flow crushing, is passed through 5~10 DEG C of nitrogen and the mixed gas of air, and grinding time is 40~
50min。
6. the method that discarded glass according to claim 1 prepares crystal glass handicraft, it is characterised in that the step
（4）Temperature programming detailed process is：500~550 DEG C are warming up to 20~30 DEG C/min, 10~20min is kept；With 30~40
DEG C/min is warming up to 1000~1100 DEG C, keeps 15~25min；1400~1500 DEG C, holding are warming up to 35~45 DEG C/min
20~30min.
7. the method that discarded glass according to claim 1 prepares crystal glass handicraft, it is characterised in that the step
（6）The cold wind being blown into is 10~20 DEG C of air, and blast is 0.06~0.08MPa.
8. the method that discarded glass according to claim 1 prepares crystal glass handicraft, it is characterised in that the step
（7）Engraving carries out back of the body carving, circular engravure or embossment using laser carving machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522039.3A CN107264164A (en) | 2017-06-30 | 2017-06-30 | A kind of method that discarded glass prepares crystal glass handicraft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522039.3A CN107264164A (en) | 2017-06-30 | 2017-06-30 | A kind of method that discarded glass prepares crystal glass handicraft |
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| Publication Number | Publication Date |
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| CN107264164A true CN107264164A (en) | 2017-10-20 |
Family
ID=60070600
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110577361A (en) * | 2019-10-21 | 2019-12-17 | 徐州宏华玻璃科技有限公司 | formula and production method of purple true-color glass |
| CN110577360A (en) * | 2019-10-21 | 2019-12-17 | 徐州宏华玻璃科技有限公司 | formula and manufacturing process of brown glass |
| CN110590159A (en) * | 2019-10-19 | 2019-12-20 | 徐州宏华玻璃科技有限公司 | Formula and manufacturing method of lead-free glass with better environmental protection |
| CN110615614A (en) * | 2019-10-19 | 2019-12-27 | 徐州宏华玻璃科技有限公司 | Formula and preparation method of more environment-friendly alkali-resistant glass |
| CN113666637A (en) * | 2021-09-23 | 2021-11-19 | 赖正葵 | Crystal belt fastener and manufacturing method thereof |
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| CN2611187Y (en) * | 2003-03-11 | 2004-04-14 | 徐勇 | Picture made of crystal glas with mosaic of metal |
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| CN103253057A (en) * | 2013-05-21 | 2013-08-21 | 大连尚艺玻璃集团有限公司 | Production process of colorfully-painted and back-engraved crystal glass |
| CN103864306A (en) * | 2014-03-10 | 2014-06-18 | 山东建筑大学 | Full-solid waste high-strength glass ceramic as well as preparation method and application thereof |
| CN103951169A (en) * | 2014-05-05 | 2014-07-30 | 柳铁刚 | Method for manufacturing glass accessories and abnormal glass mosaic by waste glass |
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| CN2611187Y (en) * | 2003-03-11 | 2004-04-14 | 徐勇 | Picture made of crystal glas with mosaic of metal |
| CN201092224Y (en) * | 2007-09-18 | 2008-07-30 | 邱培育 | Crystal glass art ware |
| CN103253057A (en) * | 2013-05-21 | 2013-08-21 | 大连尚艺玻璃集团有限公司 | Production process of colorfully-painted and back-engraved crystal glass |
| CN103864306A (en) * | 2014-03-10 | 2014-06-18 | 山东建筑大学 | Full-solid waste high-strength glass ceramic as well as preparation method and application thereof |
| CN103951169A (en) * | 2014-05-05 | 2014-07-30 | 柳铁刚 | Method for manufacturing glass accessories and abnormal glass mosaic by waste glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110590159A (en) * | 2019-10-19 | 2019-12-20 | 徐州宏华玻璃科技有限公司 | Formula and manufacturing method of lead-free glass with better environmental protection |
| CN110615614A (en) * | 2019-10-19 | 2019-12-27 | 徐州宏华玻璃科技有限公司 | Formula and preparation method of more environment-friendly alkali-resistant glass |
| CN110577361A (en) * | 2019-10-21 | 2019-12-17 | 徐州宏华玻璃科技有限公司 | formula and production method of purple true-color glass |
| CN110577360A (en) * | 2019-10-21 | 2019-12-17 | 徐州宏华玻璃科技有限公司 | formula and manufacturing process of brown glass |
| CN113666637A (en) * | 2021-09-23 | 2021-11-19 | 赖正葵 | Crystal belt fastener and manufacturing method thereof |
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Application publication date: 20171020 |
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| WW01 | Invention patent application withdrawn after publication |