CN1058949C - Method for producing sandwiched safety glass - Google Patents
Method for producing sandwiched safety glass Download PDFInfo
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- CN1058949C CN1058949C CN98106733A CN98106733A CN1058949C CN 1058949 C CN1058949 C CN 1058949C CN 98106733 A CN98106733 A CN 98106733A CN 98106733 A CN98106733 A CN 98106733A CN 1058949 C CN1058949 C CN 1058949C
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Abstract
The present invention relates to the technical field of glass deep processing. A product is applied to industries of construction, automobiles, decoration, industry, etc. A PVB film with equal size and shape as glass is paved between every two layers of washed and dried plate glass or arc-shaped glass formed by hot bending to be used as a middle layer which is made by processing at a negative pressure and forming at a low pressure; more specifically, air between the glass and the film is pumped out by a vacuum pump, and the glass and the film are heated to a certain temperature so as to be sent into a vulcanizing tank which uses steam as a heat source after the air is cooled down. The steam is introduced into the tank for heating and the compressed air is introduced into the tank for pressurization for certain time of thermal preservation and pressure preservation.
Description
The present invention relates to a kind of deep process technology field of glass, product application is in industries such as building, automobile, decoration and industry.
At present, the laminated safety glass production technique can be divided into wet method and dry method two big classes.So-called wet method interlayer is to pour into methymethacrylate between two sheet glass, under the catalysis of benzoyl peroxide and causing, obtains the method for laminated glass through heated polymerizable, claims injection process again; So-called dry method interlayer is to do the middle layer with polyvinyl butyral film (also claiming the PVB film) between two sheet glass or multi-disc glass, after pre-treatment, makes the method for laminated glass again through High Temperature High Pressure in autoclave, also is called the film method.
With the laminated glass of wet method and dry production because preparation technology different, and the difference of the physicochemical property of kinds of interlayer, thereby quality product is checked according to GB GB9656-88 standard and is differed widely: with the laminated glass of wet production because shock-resistance and anti-penetration-resistant are poor, can only reach the category-B standard, be in superseded stage at present at home and abroad; The laminated glass of producing with the film method has very high shock-resistance owing to intermediate coat, penetration-resistant, and performances such as weathering resistance, thereby its quality of laminated glass of producing can reach the category-A standard.But required autoclave is the key equipment in the technology in the dry production, and this facility investment is bigger, satisfy production technique, should be than major diameter length again, and also requirement can be born the pressure of 1.3-1.5MPa, thereby is mostly that price is higher from external import; Also adopt electrically heated to carry out, thereby also will be equipped with the complicated utility appliance of a cover, guarantee safe in utilization because of used autoclave heating mode.
The purpose of this invention is to provide the method that a kind of improved film method is produced laminated glass, it does not need import special high-pressure equipment, adopts the cold process rubberizing, negative pressure is handled and low pressure molding, adopting comparatively economic steam in its production process is thermal source, less investment, quality product height.
The present invention realizes by following technical measures:
Do the middle layer with the sizable PVB film of glass size shape spreading out and putting on one or more layers between two behind the cleaning-drying or multi-disc sheet glass or after hot bending is shaped two or multi-disc arc glass, handle through negative pressure, low pressure molding makes.
Specifically be the glass that accompanies film is sent into heat-resisting poly-bag or with cushion rubber the edge of whole glass sealing, extract air between glass and film out with vacuum pump.Progressively heating simultaneously, when temperature is raised to 115～120 ℃, constant temperature keeps cooling after 1 hour, at this moment, because under negative pressure of vacuum, glass will reach tentatively bonding with the PVB film, when temperature drops to 40～45 ℃, stop to vacuumize, dismantle poly-bag or cushion rubber, take out above-mentionedly through pretreated glass, it is neat to send in the homemade vulcanizing boiler of typing vertical out-fall, feeds steam heating in jar, allowing air compressor machine constantly import pressurized air simultaneously in jar pressurizes, pressure is decided on a jar interior glass thickness to be processed between 0.4～0.8MPa, and general thin glass can adopt less pressure.When temperature reached 130～135 ℃, heat-insulation pressure keeping stopped heating after 1 hour, when cooling to 60～65 ℃ with the pressurized air pressurize, promptly make standard compliant laminated safety glass product.
The invention will be further described below in conjunction with embodiment.
Embodiment 1: former of sheet glass is pressed the cutting of desired size shape, behind the cleaning-drying, between two or multi-disc glass, spread out and put on sizable one or more layers PVB film of glass size shape, send into heat-resisting poly-bag or with cushion rubber the edge edge sealing of whole glass, vacuum pump is extracted the air between glass and film out, progressively heating simultaneously, when temperature was raised to 120 ℃, stationary temperature was lowered the temperature after 1 hour.At this moment, under the negative pressure of vacuum condition, glass will reach tentatively bonding with the PVB film.When temperature drops to 45 ℃, stop to vacuumize, dismantle poly-bag or cushion rubber, visible at this moment adherent glass just major part is transparence.Will be through above-mentioned pretreated glass.Vertical out-fall feeds steam heating in ∮ 1600 * 5000 homemade vulcanizing boilers.Allow simultaneously air compressor machine constantly in jar the input pressurized air pressurize, when pressure reach 0.4～0.8MPa, when temperature reaches 130～135 ℃, heat-insulation pressure keeping is after 1 hour.Stop heating, when cooling to 60～65 ℃, can obtain meeting the laminated glass product of GB with the pressurized air pressurize.
Embodiment 2: after former of sheet glass is pressed the cutting of desired size shape, edging, cleaning-drying, heat on baking and bending furnace, temperature is controlled at 600～650 ℃, gets final product after reaching required crooked radian.Between two or multi-disc hot bending molding glass, spread out and put on the glass size shape behind sizable one or more layers PVB film, send into heat-resisting poly-bag or with cushion rubber the edge edge sealing of whole glass, vacuum pump is extracted the air between glass and film out, progressively heating simultaneously, when temperature was raised to 120 ℃, stationary temperature was lowered the temperature after 1 hour.At this moment, under the negative pressure of vacuum condition, glass will reach tentatively bonding with the PVB film.When temperature drops to 45 ℃, stop to vacuumize, dismantle poly-bag or cushion rubber, visible at this moment adherent glass just major part is the transparency.Will be through above-mentioned pretreated glass, vertical out-fall is in ∮ 1600 * 5000 homemade vulcanizing boilers.Feed steam heating, allowing air compressor machine constantly import pressurized air simultaneously in jar pressurizes, when pressure reaches 0.45～0.8MPa, when temperature reaches 130～135 ℃, behind the heat-insulation pressure keeping 1 hour, stop heating, when cooling to 60～65 ℃, can obtain meeting the laminated glass product of GB with the pressurized air pressurize.
The present invention is owing to be the electrically heated special high-pressure still of usefulness of the vulcanizing boiler import substitution of thermal source with steam with homemade typing, pressure in the moulding of production process mesohigh is reduced to 0.4-0.8MPa from the 1.3-1.5MPa that generally uses now, reduce production cost effectively, shortened the production cycle.Quality product also is significantly improved, and the shock-resistance and the penetration-resistant of product are improved, and favorable economic benefit and social benefit are arranged.Simultaneously since adopt steam be thermal source to replace electrically heated be the autoclave of thermal source, avoided effectively autoclave internal cause PVB at high temperature organic volatile gathering and autoclave hidden danger on fire appears.
Claims (3)
1. method for producing sandwiched safety glass, do the middle layer with the sizable PVB film of glass size shape between two behind the cleaning-drying or multi-disc sheet glass or after hot bending is shaped two or multi-disc arc glass, spreading out and putting on one or more layers, it is characterized in that: the glass that accompanies film is sent into heat-resisting poly-bag or with cushion rubber the edge of whole glass is sealed, handle through negative pressure, low pressure molding makes laminated safety glass.
2. glass-making processes according to claim 1, it is characterized in that said negative pressure is treated to the air between vacuum pump extraction glass and film, progressively heating simultaneously, when temperature is raised to 115～120 ℃, constant temperature keeps cooling after 1 hour, when temperature drops to 40～45 ℃, stop to vacuumize, dismantle poly-bag or cushion rubber.
3. glass-making processes according to claim 1, it is characterized in that said low pressure molding is with above-mentioned treated glass, it is neat to send in the vulcanizing boiler that Φ 1600 * 5000 homemade typings are thermal source with steam vertical out-fall, in jar, feed steam heating, allowing air compressor machine constantly import pressurized air simultaneously in jar pressurizes, when pressure reaches 0.45～0.8MPa, when temperature reaches 130～135 ℃, heat-insulation pressure keeping stops heating after 1 hour, cool to 60～65 ℃ with the pressurized air pressurize and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98106733A CN1058949C (en) | 1998-03-24 | 1998-03-24 | Method for producing sandwiched safety glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98106733A CN1058949C (en) | 1998-03-24 | 1998-03-24 | Method for producing sandwiched safety glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1197044A CN1197044A (en) | 1998-10-28 |
| CN1058949C true CN1058949C (en) | 2000-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98106733A Expired - Fee Related CN1058949C (en) | 1998-03-24 | 1998-03-24 | Method for producing sandwiched safety glass |
Country Status (1)
| Country | Link |
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| CN (1) | CN1058949C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443429C (en) * | 2004-07-28 | 2008-12-17 | 梁兆洪 | Method for producing heat smelting pressure casting sandwich safety glass |
| CN101935171B (en) * | 2010-09-15 | 2012-06-20 | 河南亚华安全玻璃有限公司 | Method for machining energy-saving membrane-embedded low-radiation sandwich glass |
| CN103359956A (en) * | 2012-04-01 | 2013-10-23 | 北京新立基真空玻璃技术有限公司 | Laminated vacuum glass and manufacturing method thereof |
| CN105060740A (en) * | 2015-08-25 | 2015-11-18 | 武汉耀华安全玻璃有限公司 | Continuous production device and technology for sandwich glass |
| CN107202203B (en) * | 2017-07-06 | 2019-01-22 | 盐城工学院 | A kind of inorganic pipeline of interlayer and preparation method thereof |
| CN108073957A (en) * | 2017-12-12 | 2018-05-25 | 重庆市三三汽车配件有限公司 | A kind of production management method of glass processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038441A (en) * | 1988-06-11 | 1990-01-03 | 河北轻化工学院 | A kind of manufacture method of laminated safety glass |
| CN2125585U (en) * | 1992-07-14 | 1992-12-23 | 林渊钊 | Safety glass |
| CN1171080A (en) * | 1994-11-09 | 1998-01-21 | 利比-欧文斯-福特公司 | Self-adhering polyvinal chloride safety glass interlayer |
-
1998
- 1998-03-24 CN CN98106733A patent/CN1058949C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038441A (en) * | 1988-06-11 | 1990-01-03 | 河北轻化工学院 | A kind of manufacture method of laminated safety glass |
| CN2125585U (en) * | 1992-07-14 | 1992-12-23 | 林渊钊 | Safety glass |
| CN1171080A (en) * | 1994-11-09 | 1998-01-21 | 利比-欧文斯-福特公司 | Self-adhering polyvinal chloride safety glass interlayer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1197044A (en) | 1998-10-28 |
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| CF01 | Termination of patent right due to non-payment of annual fee |