CN105800922A - Method for tempering glass - Google Patents
Method for tempering glass Download PDFInfo
- Publication number
- CN105800922A CN105800922A CN201610139430.0A CN201610139430A CN105800922A CN 105800922 A CN105800922 A CN 105800922A CN 201610139430 A CN201610139430 A CN 201610139430A CN 105800922 A CN105800922 A CN 105800922A
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- CN
- China
- Prior art keywords
- glass
- section
- bringing
- temperature
- tempering
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- 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
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention provides a method for tempering glass. According to the method, glass is heated by a laser heating process and is tempered to replace the existing heating mode, and the defects of microcrack and the like formed in glass cutting, drilling and other pretreatment processes can be overcome, so that the glass quality can be maintained, the glass yield can be increased, the electricity usage amount can be reduced, and the production cost can be reduced.
Description
Technical field
The present invention relates to safety glass process technology, be specifically related to the heating means of a kind of tempered glass heating furnace, the method especially eliminating the safety glass of glass slight crack in heating process.
Background technology
In prior art, a complete toughened glass production line generally includes a platform, heating furnace, tempering section and bottom sheet platform, is heated to after the glass of softening temperature is come out of the stove being transferred directly to tempering section quick cooling steel chemical conversion type by roller-way carrying.But, present in it, problem is: the phenomenon that glass bursts suddenly in the quick cooling procedure of tempering section happens occasionally, not only reduce safety glass yield rate, and the cullet dropped easily block the exhaust vent of tempering section, bring totally unfavorable impact to normal production.
Why glass bursts suddenly in toughening process？Tracing it to its cause as follows, one, glass glass edge and hole, groove edge during cutting, boring or the angle lap of former create micro-crack, cause stress in toughening process directly to ftracture at micro-crack；Its two, glass in heating process because of thermal shock surface produce micro-crack, toughening process also can cause glass rupture.
For the scientific and technical personnel of the art, the most all thirsting for this technical barrier of solution, but failing to be fully solved always.
Summary of the invention
It is an object of the invention to use the toughening method of a kind of glass, after the process of LASER HEATING is used for glass heating, then row tempering, replace original heat form, the defects such as the micro-crack that glass formed in the preprocessing process such as cutting, boring can be eliminated, to keep glass quality, improve glass productivity.
For solving above-mentioned technical problem, it is achieved above-mentioned purpose, the technical solution used in the present invention is:
The toughening method of a kind of glass, including glass tempering furnace, glass tempering furnace includes a bringing-up section and a tempering section, by conveyer device, glass is delivered to from bringing-up section tempering section continuously；
The heating process of bringing-up section uses laser mode to heat, it is achieved the overall softening to glass, and the temperature of bringing-up section is set to whole installation or subregion is arranged, described subregion at least two district；
During whole installation, heating-up temperature is 450-1200 DEG C；
When Fen Liangge district is arranged, first district's heating-up temperature is 450-850 DEG C, and second district's heating-up temperature is 600-1200 DEG C；
Tempering section uses natural cooling or forces the mode of cooling to carry out tempering process.
Glass tempering furnace of the present invention, its bringing-up section and tempering section are connected as a single entity.
Bringing-up section of the present invention is provided with laser heater.
The laser heater of bringing-up section of the present invention is symmetricly set on the above-below direction of conveyer device.
Laser heater of the present invention is many groups.
Laser heater of the present invention is fixedly installed relative to conveyer device, and glass is heated by laser heater in motor process.
The pressure type of cooling of the present invention is quenching, liquid cooling or solid cooling.
When the temperature of bringing-up section of the present invention is set to whole installation, described heating-up temperature is 600-750 DEG C.
The temperature of bringing-up section of the present invention is set to subregion when arranging, and first district's heating-up temperature is 600-750 DEG C, and second district's heating-up temperature is 700-1000 DEG C.
The invention has the beneficial effects as follows:
1, the mode in bringing-up section heating uses LASER HEATING, LASER HEATING process can by glass during cutting, boring or the angle lap of former in glass edge and hole, the defect such as the micro-crack that produces of groove edge carry out Processing for removing, ensure the glass product yield rate after tempering, utilize LASER HEATING can reduce glass thermal shock in heating process simultaneously.
2, using LASER HEATING due to bringing-up section, before glass enters toughening process, temperature and falling temperature technique thereof that its heating process is used are easily controllable, and decrease electric energy usage amount, not only reduce cost, also improve productivity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Labelling in figure: 1, bringing-up section；2, conveyer device；3, laser heater, 4, tempering section；5, glass.
Detailed description of the invention
As it is shown in figure 1, the toughening method of a kind of glass, including glass tempering furnace, glass tempering furnace includes a bringing-up section 1 and a tempering section 4, by conveyer device, glass is delivered to from bringing-up section tempering section continuously, and wherein, plate glass selected by this glass.
The heating process of bringing-up section uses laser mode to heat, it is achieved the overall softening to glass, and the temperature of bringing-up section is set to whole installation or subregion is arranged, described subregion at least two district；
During whole installation, heating-up temperature is 450-1200 DEG C；
When Fen Liangge district is arranged, first district's heating-up temperature is 450-850 DEG C, and second district's heating-up temperature is 600-1200 DEG C；
Being sent into tempering section by bringing-up section, tempering section uses natural cooling or forces the mode of cooling to carry out tempering process.
The subregion of described bringing-up section arranges heat form, use preheat promote again temperature heating gradient-heated form carry out glass thermoplastic process.
For realizing above-mentioned technological means and method, also need to adopt the following technical scheme that
Described glass tempering furnace, its bringing-up section and tempering section are connected as a single entity, and pass through unitary design, it is achieved the streamlined of glass tempering produces.
Described bringing-up section 1 is provided with laser heater 3, and laser heater 3 uses commercially available prod, it is achieved heats, laser heater 3 be chosen as solid state laser or gas laser.
The laser heater of described bringing-up section is symmetricly set on the above-below direction of glass conveyer device 2, described laser heater, is selected by wavelength selection, scanning speed, scanning density and the laser power of laser, to control the auxiliary hot temperature in bringing-up section.
Described laser heater is fixedly installed relative to conveyer device 2, and glass 5 is heated by laser heater in motor process.
The radiation modality of described laser can be irradiated by the linearly mode of strafing.
The described pressure type of cooling is quenching, liquid cooling or solid cooling.Liquid cooling medium can be water, chemicals, and the solid type of cooling can be heat transfer, conduction of heat.
LASER HEATING principle: glass produces after absorbing laser energy and heats up, and during high temperature, glass viscosity reduces, and thermal stress discharges, and glass will not occur thermoelasticity to rupture under laser action, but softening transform occurs.After laser action stops in the cooling procedure of glass, along with the reduction of temperature, the viscosity of glass is gradually restored to again house temperature, but the stress in glass no longer returns to zero as elastomer, but it being changed into tensile stress, its size is by how many decisions of Stress Release during high temperature.The laser intensity of heating period is not to be exceeded to produce the threshold values of the tensile stress causing glass breakage.
Embodiment 1
A kind of toughening method of glass, including glass tempering furnace, glass tempering furnace includes a bringing-up section and a tempering section, by conveyer device, glass is delivered to from bringing-up section tempering section continuously, it is characterised in that:
The heating process of bringing-up section uses laser mode to heat, it is achieved the overall softening to glass, the temperature of bringing-up section is set to whole installation or subregion is arranged, and during whole installation, heating-up temperature is 450-1200 DEG C；
Tempering section uses natural cooling or forces the mode of cooling to carry out tempering process.
Embodiment 2
The toughening method of a kind of glass, including glass tempering furnace, glass tempering furnace includes a bringing-up section and a tempering section, by conveyer device, glass is delivered to from bringing-up section tempering section continuously；
The heating process of bringing-up section uses laser mode to heat, it is achieved the overall softening to glass, the temperature of bringing-up section is set to whole installation or subregion is arranged, and during whole installation, heating-up temperature is 600-750 DEG C；
Tempering section uses natural cooling or forces the mode of cooling to carry out tempering process.
Embodiment 3
A kind of toughening method of glass, including glass tempering furnace, glass tempering furnace includes a bringing-up section and a tempering section, by conveyer device, glass is delivered to from bringing-up section tempering section continuously, it is characterised in that；
The heating process of bringing-up section uses laser mode to heat, it is achieved the overall softening to glass, and the temperature of bringing-up section is set to subregion and arranges, and when Fen Liangge district is arranged, first district's heating-up temperature is 450-850 DEG C, and second district's heating-up temperature is 600-1200 DEG C；
Tempering section uses natural cooling or forces the mode of cooling to carry out tempering process.
Embodiment 4
The toughening method of a kind of glass, including glass tempering furnace, glass tempering furnace includes a bringing-up section and a tempering section, by conveyer device, glass is delivered to from bringing-up section tempering section continuously；
The heating process of bringing-up section uses laser mode to heat, it is achieved the overall softening to glass, and the temperature of bringing-up section is set to subregion and arranges, and when Fen Liangge district is arranged, first district's heating-up temperature is 600-750 DEG C, and second district's heating-up temperature is 700-1000 DEG C；
Tempering section uses natural cooling or forces the mode of cooling to carry out tempering process.
Claims (9)
1. a toughening method for glass, including glass tempering furnace, glass tempering furnace includes a bringing-up section and a tempering section, by conveyer device, glass is delivered to from bringing-up section tempering section continuously, it is characterised in that:
The heating process of bringing-up section uses laser mode to heat, it is achieved the overall softening to glass, and the temperature of bringing-up section is set to whole installation or subregion is arranged, described subregion at least two district；
During whole installation, heating-up temperature is 450-1200 DEG C；
When Fen Liangge district is arranged, first district's heating-up temperature is 450-850 DEG C, and second district's heating-up temperature is 600-1200 DEG C；
Tempering section uses natural cooling or forces the mode of cooling to carry out tempering process.
The toughening method of a kind of glass the most according to claim 1, it is characterised in that: described glass tempering furnace, its bringing-up section and tempering section are connected as a single entity.
The toughening method of a kind of glass the most according to claim 1, it is characterised in that: described bringing-up section is provided with laser heater.
The toughening method of a kind of glass the most according to claim 3, it is characterised in that: the laser heater of described bringing-up section is symmetricly set on the above-below direction of conveyer device.
The toughening method of a kind of glass the most according to claim 3, it is characterised in that: described laser heater is many groups.
The toughening method of a kind of glass the most according to claim 3, it is characterised in that:
Described laser heater is fixedly installed relative to conveyer device, and glass is heated by laser heater in motor process.
The toughening method of a kind of glass the most according to claim 1, it is characterised in that: the described pressure type of cooling is quenching, liquid cooling or solid cooling.
The toughening method of a kind of glass the most according to claim 1, it is characterised in that: when the temperature of described bringing-up section is set to whole installation, described heating-up temperature is 600-750 DEG C.
The toughening method of a kind of glass the most according to claim 1, it is characterised in that: the temperature of described bringing-up section is set to subregion when arranging, and first district's heating-up temperature is 600-750 DEG C, and second district's heating-up temperature is 700-1000 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139430.0A CN105800922A (en) | 2016-03-10 | 2016-03-10 | Method for tempering glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139430.0A CN105800922A (en) | 2016-03-10 | 2016-03-10 | Method for tempering glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105800922A true CN105800922A (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610139430.0A Pending CN105800922A (en) | 2016-03-10 | 2016-03-10 | Method for tempering glass |
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| Country | Link |
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| CN (1) | CN105800922A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902882A (en) * | 2017-12-27 | 2018-04-13 | 重庆艺美玻璃有限公司 | A kind of quick steel process of glass |
| WO2021176123A1 (en) | 2020-03-02 | 2021-09-10 | Consejo Superior De Investigaciones Científicas | Method for modifying a vitreous material |
| CN114230158A (en) * | 2021-11-30 | 2022-03-25 | 中国建材国际工程集团有限公司 | Annealing kiln waste heat utilization system of photovoltaic calendering glass production line |
| CN114804657A (en) * | 2022-04-29 | 2022-07-29 | 湖北省泛力科光电有限公司 | Toughened glass production line and production process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730952A (en) * | 2012-06-29 | 2012-10-17 | 都匀开发区福田化工有限责任公司 | Glass tempering furnace and glass tempering method |
| CN102992601A (en) * | 2012-12-04 | 2013-03-27 | 张立国 | Method for annealing stress of prestressed glass laser |
| CN104355530A (en) * | 2014-09-03 | 2015-02-18 | 宁波市合鑫玻璃科技有限公司 | Production process for flat tempered glass |
| CN104628243A (en) * | 2015-01-14 | 2015-05-20 | 张立国 | Manufacturing method of surface pulling stress glass |
-
2016
- 2016-03-10 CN CN201610139430.0A patent/CN105800922A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730952A (en) * | 2012-06-29 | 2012-10-17 | 都匀开发区福田化工有限责任公司 | Glass tempering furnace and glass tempering method |
| CN102992601A (en) * | 2012-12-04 | 2013-03-27 | 张立国 | Method for annealing stress of prestressed glass laser |
| CN104355530A (en) * | 2014-09-03 | 2015-02-18 | 宁波市合鑫玻璃科技有限公司 | Production process for flat tempered glass |
| CN104628243A (en) * | 2015-01-14 | 2015-05-20 | 张立国 | Manufacturing method of surface pulling stress glass |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902882A (en) * | 2017-12-27 | 2018-04-13 | 重庆艺美玻璃有限公司 | A kind of quick steel process of glass |
| WO2021176123A1 (en) | 2020-03-02 | 2021-09-10 | Consejo Superior De Investigaciones Científicas | Method for modifying a vitreous material |
| CN115734952A (en) * | 2020-03-02 | 2023-03-03 | 西班牙高等科研理事会 | Method for modifying glass material |
| CN114230158A (en) * | 2021-11-30 | 2022-03-25 | 中国建材国际工程集团有限公司 | Annealing kiln waste heat utilization system of photovoltaic calendering glass production line |
| CN114804657A (en) * | 2022-04-29 | 2022-07-29 | 湖北省泛力科光电有限公司 | Toughened glass production line and production process |
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| PB01 | Publication | ||
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Application publication date: 20160727 |