CN107902896A - The preparation process of new tempered glass - Google Patents
The preparation process of new tempered glass Download PDFInfo
- Publication number
- CN107902896A CN107902896A CN201711357039.9A CN201711357039A CN107902896A CN 107902896 A CN107902896 A CN 107902896A CN 201711357039 A CN201711357039 A CN 201711357039A CN 107902896 A CN107902896 A CN 107902896A
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- CN
- China
- Prior art keywords
- glass
- preparation process
- tempered glass
- new
- new tempered
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B9/00—Blowing glass; Production of hollow glass articles
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Present invention is disclosed a kind of preparation process of new tempered glass, the step of preparation process of the new tempered glass, includes：（1）Dispensing,（2）It is melted,（3）Shaping,（4）Annealing,（5）Tempering, the preparation process of new tempered glass of the invention have the advantages that shortening the tempering time, thickening the surface pressing layer of tempered glass, increase tempering intensity.
Description
Technical field
The present invention relates to a kind of preparation process of new tempered glass.
Background technology
The mode of glass tempering has physical toughened and chemical tempering, chemically toughened glass intensity and physical toughened glass at present
Close, heat endurance is good, and treatment temperature is low, and product is unlikely to deform, and its product uses from the limitation of thickness and geometry
Equipment is simple, and product is easy to implement.But compared with physical toughened glass, length (swap time chemically toughened glass production cycle
Up to tens of hours), efficiency is low and production cost is high.The principle of chemical enhancement method is：Changed according to the mechanism of ion diffusion
Become the surface composition of glass, glass is immersed in high-temperature molten salt at a certain temperature, the alkali metal ion in glass is with melting
Alkali metal ion in salt is exchanged with each other because of diffusion, produces " jammed " phenomenon, glass surface is produced compression stress, from
And improve the intensity of glass.But bearing stress layer caused by ion-exchange is than relatively thin, very sensitive to surface microdefect,
The surface tear of very little, is just enough to reduce strength of glass.The diameter of Ba2+ is less than K+, is more advantageous to the entrance of ion, makes
Surface pressing layer thickens.The purpose of the present invention is exactly that the above-mentioned tempering time existing in the prior art is long and surface is pressed in order to overcome
Stressor layers than it is relatively thin the shortcomings of, there is provided a kind of new catalyst and preparation process.
The content of the invention
It is an object of the invention to provide with the tempering time is shortened, the surface pressing layer of tempered glass is thickened, increases steel
A kind of preparation process of the new tempered glass for the advantages that changing intensity.
The technical scheme is that：A kind of preparation process of new tempered glass, the preparation of the new tempered glass
The step of technique, includes：
（1）Dispensing：By raw material according to ratio and the glass little particle of recycling, batch is prepared into after mixing；
（2）It is melted：Batch is made a gift to someone glass melter, by fusing, clarification, homogenizing and cooling etc. within the temperature range of regulation
Process, obtains uniform glass metal；
（3）Shaping：Glass metal after fusing is molded by mould；
（4）Annealing：Molding glass is heated to the temperature range close to softening, held for some time, afterwards into annealing chamber
Or continous way slow cooling kiln, then it is quenched, quenching a period of time, eliminates the stress of inside glass；
（5）Tempering：Tempering processing is carried out to the glass after annealing.
In a preferred embodiment of the present invention, the step（1）Middle raw material includes quartz sand, lime stone, dolomite, pure
Alkali, saltcake.
In a preferred embodiment of the present invention, each component ratio of the quartz sand, lime stone, dolomite, soda ash, saltcake
For 1:0.5:1:0.5:0.5.
In a preferred embodiment of the present invention, the step（4）The temperature of middle softening is 620 DEG C -640 DEG C.
In a preferred embodiment of the present invention, the step（4）The time of middle insulation is 50min.
In a preferred embodiment of the present invention, the step（4）Middle quenching a period of time is 120min.
A kind of preparation process of new tempered glass of the present invention, has and shortens the tempering time, thickens the table of tempered glass
The advantages that surface pressure layer, increase tempering intensity.
Embodiment
It is described in detail with reference to presently preferred embodiments of the present invention, so that advantages and features of the invention can be more easy to
In being readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
In one embodiment, a kind of preparation process of new tempered glass, the preparation process's of the new tempered glass
Step includes：
（1）Dispensing：By raw material according to ratio and the glass little particle of recycling, batch is prepared into after mixing；
（2）It is melted：Batch is made a gift to someone glass melter, by fusing, clarification, homogenizing and cooling etc. within the temperature range of regulation
Process, obtains uniform glass metal；
（3）Shaping：Glass metal after fusing is molded by mould；
（4）Annealing：Molding glass is heated to the temperature range close to softening, held for some time, afterwards into annealing chamber
Or continous way slow cooling kiln, then it is quenched, quenching a period of time, eliminates the stress of inside glass；
（5）Tempering：Tempering processing is carried out to the glass after annealing.
Further illustrate, the step（1）Middle raw material includes quartz sand, lime stone, dolomite, soda ash, saltcake, the stone
Each component ratio of sand, lime stone, dolomite, soda ash, saltcake is 1:0.5:1:0.5:0.5, the step（4）The temperature of middle softening
Spend for 620 DEG C -640 DEG C, the step（4）The time of middle insulation is 50min, the step（4）It is middle quenching a period of time be
120min。
Further illustrating, tempered glass is that glass is heated to close to softening temperature（At this moment it is in VISCOUS FLOW shape
State）-- this temperature range, we are known as tempering temperature scope（620℃-640℃）, held for some time, is then quenched and forms
's.Temperature change and stress forming process in the physical toughened method production technology engineering that underdraws below.（1）Begin to warm up
Stage：Sheet glass enters tempering stove heat by room temperature, since glass is the non-conductor of heat, so internal layer temperature is low at this time, outside
Layer temperature is high, and outer layer starts to expand, and internal layer is unexpanded, so the expansion of outer layer at this time is suppressed surface be subject to internal layer and generates temporarily
When compression, central core is tensile stress, since the compression strength of glass is high, so while quick heating, sheet glass are not also broken
It is broken.Glass is into stove, since ectonexine has temperature difference, to cause the pressure of glass ectonexine.Therefore, heavy sheet glass will heat slowly
A bit, temperature is lower, otherwise because internal-external temperature difference is big and caused by glass burst in stove.（2）Continue the heating period：Glass after
Continuous heating, glass ectonexine temperature reduce, the iso-stress in glass plate when ectonexine all reaches tempering temperature.（3）Start to be quenched
Stage（Start to dry preceding 1.5-2 seconds）：Sheet glass is dried by annealing furnace into air grid, and surface layer temperatures descend below center
Temperature, surface start to shrink at, and central core is not shunk, so the contraction of superficial layer is suppressed be subject to central core, make superficial layer
It is subject to temporary transient tensile stress, central core forms compression.（4）Continue the quenching stage：Glass ectonexine is further quenched, glass surface
Layer has hardened（Temperature has dropped down to less than 500 DEG C）, stop shrinking, this is that internal layer also begins to cool down, shrinks, and the surface hardened
Layer inhibits the contraction of internal layer, superficial layer is generated compression, and forms tensile stress in internal layer.（5）After
Continuous quenching：Glass ectonexine temperature all further reduces, and inner layer glass drops to 500 DEG C or so at this moment, shrinks and accelerates, at this
The tensile stress of the compression internal layer of a stage outer layer has basically formed, but central core is also relatively soft not yet to completely disengage viscous flow
Dynamic state, so not also being final stress state.（6）Tempering is completed：The all complete tempering of this staged glass ectonexine, it is interior
The outer layer temperature difference reduces, and the final stress of tempered glass is formed, i.e., outer surface is compression, and internal layer is tensile stress.
The tempering of glass, it is that sheet glass is heated to certain temperature in the heating unit of annealing furnace（The temperature should
Less than glass transition temperature）, the internal stress of glass in itself is eliminated, is then sent into it in cooling device rapidly, rapidly
Even cooling.Because the thermal conductivity factor of glass is small, in the process, the internal layer of glass and top layer will produce very big temperature ladder
Degree, i.e., due to inside glass temperature gradient presence, glass in cooling procedure surface temperature be less than the center temperature
Degree.When the temperature of glass surface quickly reduces, surface shrinkage and form compression（External carbuncle）State, at this time as glass is whole
The decline of temperature, its center continues to shrink, in tensile stress（Internal stress）State.As inside glass temperature gradient disappears, its
Surface can obtain sizable equally distributed compressive stress layer, and the compression of glass and tensile stress can reach balance, so that
Make tempered glass that there are mechanical strength, preferable thermal stability and other various securities of very high resistance foreign impacts
Energy.Cooling stage during physical toughened process of glass, air are considered as optimal cooling medium, main former
Because being：（1）Medium is readily available and cost is low；（2）Each position of glass plate is easily set to obtain the cold of equalization in cooling procedure
But chance；（3）The pressure of the wind of glass surface is blown in cooling procedure and speed is easier to adjust；（4）Can in cooling procedure
To keep the cleaning of glass surface.The present invention provides a kind of preparation process of new tempered glass, has and shortens the tempering time, increases
The advantages that surface pressing layer of thick tempered glass, increase tempering intensity.
The embodiment of the present invention, but protection scope of the present invention is not limited thereto, any to be familiar with this area
Technical staff disclosed herein technical scope in, changes or substitutions that can be made without creative work, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be with protection model that claims are limited
Subject to enclosing.
Claims (6)
- A kind of 1. preparation process of new tempered glass, it is characterised in that：The step of preparation process of the new tempered glass Including：（1）Dispensing：By raw material according to ratio and the glass little particle of recycling, batch is prepared into after mixing；（2）It is melted：Batch is made a gift to someone glass melter, by fusing, clarification, homogenizing and cooling etc. within the temperature range of regulation Process, obtains uniform glass metal；（3）Shaping：Glass metal after fusing is molded by mould；（4）Annealing：Molding glass is heated to the temperature range close to softening, held for some time, afterwards into annealing chamber Or continous way slow cooling kiln, then it is quenched, quenching a period of time, eliminates the stress of inside glass；（5）Tempering：Tempering processing is carried out to the glass after annealing.
- 2. the preparation process of new tempered glass according to claim 1, it is characterised in that：The step（1）Middle raw material Including quartz sand, lime stone, dolomite, soda ash, saltcake.
- 3. the preparation process of new tempered glass according to claim 2, it is characterised in that：The quartz sand, lime stone, Each component ratio of dolomite, soda ash, saltcake is 1:0.5:1:0.5:0.5.
- 4. the preparation process of new tempered glass according to claim 1, it is characterised in that：The step（4）Middle softening Temperature be 620 DEG C -640 DEG C.
- 5. the preparation process of new tempered glass according to claim 1, it is characterised in that：The step（4）Middle insulation Time be 50min.
- 6. the preparation process of new tempered glass according to claim 1, it is characterised in that：The step（4）Middle quenching A period of time is 120min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357039.9A CN107902896A (en) | 2017-12-16 | 2017-12-16 | The preparation process of new tempered glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357039.9A CN107902896A (en) | 2017-12-16 | 2017-12-16 | The preparation process of new tempered glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107902896A true CN107902896A (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711357039.9A Pending CN107902896A (en) | 2017-12-16 | 2017-12-16 | The preparation process of new tempered glass |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585485A (en) * | 2018-07-06 | 2018-09-28 | 浙江向往玻璃科技有限公司 | A kind of technique for the production of High-strength compression resistant tempered glass |
| CN112939480A (en) * | 2021-04-07 | 2021-06-11 | 索拉特特种玻璃(江苏)股份有限公司 | Ultra-white float glass coating tempering processing technology |
| CN113698080A (en) * | 2021-02-04 | 2021-11-26 | 佛山市顺德区优畅玻璃有限公司 | Preparation process of high-strength toughened glass |
| CN114436517A (en) * | 2022-03-19 | 2022-05-06 | 东莞市柏维光学科技有限公司 | Processing technology of glass panel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826756A (en) * | 2012-09-24 | 2012-12-19 | 绍兴杰龙玻璃有限公司 | Preparation method of white jade glass tableware |
-
2017
- 2017-12-16 CN CN201711357039.9A patent/CN107902896A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826756A (en) * | 2012-09-24 | 2012-12-19 | 绍兴杰龙玻璃有限公司 | Preparation method of white jade glass tableware |
Non-Patent Citations (1)
| Title |
|---|
| 宋宝丰: "《包装容器结构设计与制造》", 31 January 2007, 印刷工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585485A (en) * | 2018-07-06 | 2018-09-28 | 浙江向往玻璃科技有限公司 | A kind of technique for the production of High-strength compression resistant tempered glass |
| CN113698080A (en) * | 2021-02-04 | 2021-11-26 | 佛山市顺德区优畅玻璃有限公司 | Preparation process of high-strength toughened glass |
| CN112939480A (en) * | 2021-04-07 | 2021-06-11 | 索拉特特种玻璃(江苏)股份有限公司 | Ultra-white float glass coating tempering processing technology |
| CN114436517A (en) * | 2022-03-19 | 2022-05-06 | 东莞市柏维光学科技有限公司 | Processing technology of glass panel |
| CN114436517B (en) * | 2022-03-19 | 2024-03-26 | 东莞市柏维光学科技有限公司 | Processing technology of glass panel |
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Application publication date: 20180413 |