CN1192984C - Production method of silicate fire-resisting glass - Google Patents
Production method of silicate fire-resisting glass Download PDFInfo
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- CN1192984C CN1192984C CNB011245239A CN01124523A CN1192984C CN 1192984 C CN1192984 C CN 1192984C CN B011245239 A CNB011245239 A CN B011245239A CN 01124523 A CN01124523 A CN 01124523A CN 1192984 C CN1192984 C CN 1192984C
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- glass
- manufacture method
- silicate
- resisting
- silicate fire
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Abstract
The present invention relates to technology and a method for manufacturing single-sheet transparent silicate fireproof glass. Fine selection, cutting, edge grinding and polishing for the original glass sheet are carried out, and the chemical toughening, the super-strong physical toughening and the infrared reflection film plating are carried out after the edge grinding and the polishing are carried out. Compared with the prior art, the present invention has the advantages of high mechanical strength for producing the glass and good thermal stability of the glass, and furthermore, the expansion coefficient of the glass is reduced, the micro-cracks of the surface of the glass are eliminated, and thereby, the advantages of fire prevention of the glass, etc. are achieved.
Description
Technical field
A kind of manufacturing process and method of monolithic transparent silicate flame resistant glass have been the present invention relates to.
Background technology
The flame resistant glass of prior art is to fill fire retardant material between two sheet glass, makes it to reach the fp effect, and the disadvantage of this flame resistant glass is that work-ing life is short, and bubble can appear in cementing layer after for some time; There are many minute impurities and bubble, glass and thick and heavy at cementing layer; Visible light transmissivity is low; Adopt manual operations and control, production efficiency is low, and quality product is difficult to guarantee, can't carries out large-scale industrial production.
Summary of the invention
The objective of the invention is to provide a kind of coefficient of expansion that improves the physical strength of glass, the thermostability that improves glass, reduction glass, eliminate the tiny crack of glass surface, thereby reach the manufacture method of glass fp silicate fire-resisting glass.
The objective of the invention is to realize by the following technical solutions: the present invention carries out original sheet glass selected, cutting, the edging polished finish, carry out chemical tempering after the edging polished finish again, physical toughened and the plating infrared reflection film, it is characterized in that will be through selected and finished float glass, place in the following fused potassium nitrate groove of strain point of glass temperature, this moment, the K in surface layer of glass generation nitric acid fused salt replaced the Na in the glass, produce the crowding phenomenon of upper layer, cause upper layer to produce stress, fused salt material in the described fused potassium nitrate groove is by the aluminium sesquioxide of main raw saltpetre and subsidiary material, potassium silicate, cerium oxide, Potassium monofluoride and other materials are formed, wherein
Main raw weight ratio: saltpetre 73%-97.8%;
Subsidiary material weight ratio: aluminium oxide powder 1%-15%;
Potassium silicate 0.5%-5%;
Cerium oxide 0.5%-2%;
Potassium monofluoride 0.1%-2%;
Other 0.1%-3%.
Chemical tempering of the present invention is to adopt ion diffusion mechanism to change the component of glass surface, forms the bearing stress layer.Adopt low temperature method, with the big little alkalimetal ion of alkalimetal ion displacement radius of ionic radius.
Salt bath temperature of molten salt of the present invention is 380 ℃～500 ℃; Ion-exchange time is 8～72 hours.
The present invention is physical toughened to be that float glass is sent into annealing furnace process furnace internal heating, behind the arrival softening point temperature, delivers to cool furnace then fast, adopts blast to carry out chilling.Physical toughened is to adopt tempering blast 〉=1000Pa that glass is cooled off, and the value of compressive stress of glass surface is reached more than the 180Mpa.Behind the physical toughened glass, carry out hot dipping earlier and handle, plate the infrared rays transmitting film again; The method that hot dipping is handled is that glass was put into the hot dipping stove 6-8 hour, and the hot dipping furnace temperature is 245 ℃-285 ℃.
The physical strength height of the glass that the present invention compared with prior art produces, the Heat stability is good of glass, and reduced the coefficient of expansion of glass are eliminated the tiny crack of glass surface, thereby reach advantage such as glass fire prevention.
Embodiment
The embodiment that the present invention produces flame resistant glass is: by common sodium calcium silicon transparent float glass being carried out physical toughened and method chemical tempering, this method has two characteristics:
One, superpower physical toughened
Physical toughened principle is: float glass is sent into annealing furnace process furnace internal heating, behind the arrival softening point temperature, deliver to cool furnace then fast, adopt blast to carry out chilling, make it to produce permanent inherent strain.Common toughened glass stress value has only about 110MPa, and superpower tempering is to adopt high blast that glass is cooled off, and the value of compressive stress of glass surface is reached more than the 180Mpa.
Processing parameter is as follows:
The thickness of glass fire box temperature tempering heat-up time blast tempering time
(℃) (S) (S)
8mm 690-730 300-400 ≥4500Pa 5-50
10mm 680-720 350-500 ≥4000Pa 10-100
12mm 670-720 450-650 ≥3500Pa 20-200
15mm 660-710 550-900 ≥2000Pa 50-300
19mm 660-710 700-1200 ≥1000Pa 100-300
Two, chemical tempering
Because physical toughened being difficult at the value of compressive stress that improves glass surface, so must adopt the method for chemistry handles glass surface, chemical tempering is based on the component that ion diffusion mechanism changes glass surface, the physical strength of reinforcing glass and thermostability, eliminate crizzle, form a kind of treatment process of bearing stress layer.
After these two kinds of methods processing, the value of compressive stress of glass surface can reach more than the 500Mpa, by changing the chemical structure of surface layer of glass, can reduce the coefficient of expansion of glass, thereby improves the physical strength and the thermostability of glass.
Three, glass surface plating infrared reflection film
Satisfied the integrity requirement of flame resistant glass by physical toughened and flame resistant glass chemical tempering, if plate one deck infrared reflection film at its glass surface, can play very big effect to the fire performance of flame resistant glass, the coatings of glass surface can play ultrared reflex action, can also fill up the tiny crack of glass surface, the method of plated film is to adopt the mode of magnetron sputtering to carry out, and rete faces burning things which may cause a fire disaster.
Processing method of the present invention is as follows:
Embodiment 1: original sheet glass is selected → and cutting → edging → physical toughened →
→ superpower physical toughened → (plated film).
Embodiment 2: original sheet glass is selected → and cutting → edging → physical toughened →
→ superpower physical toughened → hot dipping handles → (plated film).
Embodiment 3: original sheet glass is selected → and cutting → edging → chemical tempering →
Superpower physical toughened → hot dipping handles → (plated film)
Four, chemical formulation
1. this process using low temperature process, this method is with the big little alkalimetal ion of alkalimetal ion displacement radius of ionic radius, concrete grammar is with the selected and finished float glass of process, place in the following fused potassium nitrate groove of strain point of glass temperature, this moment, the K in surface layer of glass generation saltpetre fused salt replaced the Na in the glass, because K ionic radius is 0.133nm, Na ionic radius is 0.098nm, the K ion that ionic radius is big occupies the room that the little Na. ion of ionic radius is vacateed, thereby the crowding phenomenon of generation upper layer, cause upper layer to produce bigger stress, thereby strengthened glass, improved the physical strength and the thermostability of float glass.
2. main technologic parameters
Embodiment 1: the fused salt material
Main raw: saltpetre 73%
Subsidiary material: aluminium oxide powder 15%
Potassium silicate 5%
Cerium oxide 2%
Potassium monofluoride 2%
Other are 3% years old.
Salt bath temperature of molten salt: 380 ℃
Ion-exchange time is 8 hours.
Embodiment 2: the fused salt material
Main raw: saltpetre 97.8%
Subsidiary material: aluminium oxide powder 1%
Potassium silicate 0.5%
Cerium oxide 0.5%
Potassium monofluoride 0.1%
Other are 0.1% years old.
Salt bath temperature of molten salt: 500 ℃
Ion-exchange time is 72 hours.
Implement 3: the fused salt material
Main raw: saltpetre 82%
Subsidiary material: aluminium oxide powder 10%
Potassium silicate 4%
Cerium oxide 1%
Potassium monofluoride 1%
Other are 2% years old.
Salt bath temperature of molten salt: 450 ℃
Ion-exchange time is 40 hours.
3. heat energy is handled
Glass through one, two, three processing treatment, can reach the requirement of flame resistant glass integrity, for guaranteeing that product is all qualified, must carry out hot dipping to glass handles, the method that hot dipping is handled is that glass was put into the hot dipping stove 6-8 hour, the hot dipping furnace temperature is 245 ℃-285 ℃, and this kind method also can be used for the processing of physical toughened glass.
Claims (7)
1, a kind of manufacture method of silicate fire-resisting glass, carry out original sheet glass selected, cutting, the edging polished finish, carry out chemical tempering after the edging polished finish again, physical toughened and the plating infrared reflection film, it is characterized in that will be through selected and finished float glass, place in the following fused potassium nitrate groove of strain point of glass temperature, this moment, the K in surface layer of glass generation nitric acid fused salt replaced the Na in the glass, produce the crowding phenomenon of upper layer, cause upper layer to produce stress, fused salt material in the described fused potassium nitrate groove is by the aluminium sesquioxide of main raw saltpetre and subsidiary material, potassium silicate, cerium oxide, Potassium monofluoride and other materials are formed, wherein
Main raw weight ratio: saltpetre 73%-97.8%;
Subsidiary material weight ratio: aluminium oxide powder 1%-15%;
Potassium silicate 0.5%-5%;
Cerium oxide 0.5%-2%;
Potassium monofluoride 0.1%-2%;
Other 0.1%-3%.
2, the manufacture method of silicate fire-resisting glass according to claim 1 is characterized in that chemical tempering is to adopt ion diffusion mechanism to change the component of glass surface, forms the bearing stress layer.
3, the manufacture method of silicate fire-resisting glass according to claim 1 and 2 is characterized in that adopting low temperature method, with the big little alkalimetal ion of alkalimetal ion displacement radius of ionic radius.
4, the manufacture method of silicate fire-resisting glass according to claim 1 is characterized in that the salt bath temperature of molten salt is 380 ℃-500 ℃; Ion-exchange time is 8-72 hour.
5, the manufacture method of silicate fire-resisting glass according to claim 1, it is characterized in that physical toughened is that float glass is sent into annealing furnace process furnace internal heating, behind the arrival softening point temperature, delivers to cool furnace then fast, adopts blast to carry out chilling.
6, the manufacture method of silicate fire-resisting glass according to claim 5, it is characterized in that physical toughened is to adopt tempering blast 〉=1000Pa that glass is cooled off, and the value of compressive stress of glass surface is reached more than the 180Mpa.
7, the manufacture method of silicate fire-resisting glass according to claim 1, it is characterized in that physical toughened glass after, carry out hot dipping earlier and handle, plate the infrared rays transmitting film again; The method that hot dipping is handled is that glass was put into the hot dipping stove 6-8 hour, and the hot dipping furnace temperature is 245 ℃-285 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011245239A CN1192984C (en) | 2001-07-31 | 2001-07-31 | Production method of silicate fire-resisting glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011245239A CN1192984C (en) | 2001-07-31 | 2001-07-31 | Production method of silicate fire-resisting glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1328976A CN1328976A (en) | 2002-01-02 |
| CN1192984C true CN1192984C (en) | 2005-03-16 |
Family
ID=4665722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011245239A Expired - Lifetime CN1192984C (en) | 2001-07-31 | 2001-07-31 | Production method of silicate fire-resisting glass |
Country Status (1)
| Country | Link |
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| CN (1) | CN1192984C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401186C (en) * | 2001-08-28 | 2008-07-09 | 日本电气硝子株式会社 | Low-cost reflector with excellent heat resistance |
| CN1318341C (en) * | 2002-10-22 | 2007-05-30 | 秦皇岛玻璃工业研究设计院 | Novel fire-proof safety glass for building |
| CN1962514B (en) * | 2006-11-13 | 2010-12-15 | 武汉理工大学 | Process for improving chemical stability of flat glass |
| CN101219854B (en) * | 2007-01-08 | 2011-07-06 | 宋丽 | Process for manufacturing single-slice fireproof glass and the single-slice fireproof glass |
| JP2013067555A (en) * | 2011-09-09 | 2013-04-18 | Hoya Corp | Method for producing cover glass for potable appliance |
| WO2015100565A1 (en) * | 2013-12-30 | 2015-07-09 | 周鹏 | Additive for chemical strengthening salt bath and preparation method therefor |
| CN107140852A (en) * | 2017-05-27 | 2017-09-08 | 句容耀皮节能玻璃科技发展有限公司 | A kind of preparation method of single-sheet fire-resistant glass |
| US11479504B2 (en) * | 2018-09-06 | 2022-10-25 | O'keeffe's, Inc. | Fire-rated glass unit |
-
2001
- 2001-07-31 CN CNB011245239A patent/CN1192984C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1328976A (en) | 2002-01-02 |
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA NANBO GROUP CO. Free format text: FORMER NAME: CHINA NANBO SCIENCE AND TECHNOLOGY HOLDING( GROUP ) CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Guangdong city of Shenzhen province Shenzhen six road Shekou Industrial Zone building, CSG Patentee after: CSG Holding Co., Ltd. Address before: Guangdong city of Shenzhen province Shenzhen six road Shekou Industrial Zone building, CSG Patentee before: China Nanbo Sience & Technology Proprietary (Group) Co. Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dongguan SG Engineering Glass Co.,Ltd. Assignor: CSG Holding Co., Ltd. Contract record no.: 2010440001084 Denomination of invention: Production method of silicate fire-resisting glass Granted publication date: 20050316 License type: Exclusive License Open date: 20020102 Record date: 20100803 |
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