CN104512999A - Method for bending sandwich glass through heating - Google Patents
Method for bending sandwich glass through heating Download PDFInfo
- Publication number
- CN104512999A CN104512999A CN201310442450.1A CN201310442450A CN104512999A CN 104512999 A CN104512999 A CN 104512999A CN 201310442450 A CN201310442450 A CN 201310442450A CN 104512999 A CN104512999 A CN 104512999A
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- substrate
- bending
- heating
- curvature
- laminated glass
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a method for bending sandwich glass through heating. The method comprises the following steps: washing and drying a sandwich glass substrate; evenly spraying silicon powder on the surface of the dried substrate, then putting the substrate on the concave die of a mould; then putting the mould into an electric-heating bending furnace, heating the mould, wherein the substrate will start to deform due to the self-gravity when the temperature reaches 640 to 710 DEG C; stopping heating and slowly carrying out annealing on the substrate when the curvature of the substrate is identical with the curvature of the concave die; and taking out the substrate out when the furnace temperature cools to a temperature of 100 DEG C or less. The provided method has the advantages that the bending efficiency is high and no spots on the glass surface after bending.
Description
Technical field
The invention belongs to field of glass production technology, be specifically related to a kind of hot-bending method of laminated glass.
Background technology
Hot bending laminated glass is as a kind of important form of shatter proof glass, Application Areas widely, this product is formed through PVB film bonding by heat-bending glass that is two-layer or multilayer, and have very high intensity and toughness, collision resistance is strong, safe and reliable, transparency is high, and in addition once broken, laminated glass bears the intensity of high speed impact higher than toughened glass, splash without fragment after glass breaking, the fragment of glass still can be bonded on PVB sheet.Given this feature, hot bending laminated glass is almost applied to the front windshield field of all vehicle glasses, simultaneously also widely should in association areas such as building doors and windows curtain wall, museum, the display Rooms.
Summary of the invention
The object of the invention is to, provide a kind of hot-bending method of laminated glass, hot bending efficiency is high, and after hot bending glass surface without pit.
The hot-bending method of laminated glass provided by the invention, it comprises the following steps:
(1) laminated glass substrate is carried out cleaning and drying;
(2) oven dry mera surface uniform is sprinkled silica flour, and be placed in female die of die;
(3) be placed in electrical heating type bending furnace by the mould placing substrate, start heating, when temperature reaches 640-710 DEG C, substrate starts distortion under the effect of self gravitation;
(4) when substrate curvature reaches consistent with die curvature, stop heating, slowly substrate is annealed;
(5) when furnace temperature drops to below 100 DEG C, substrate is taken out.
The hot-bending method of laminated glass provided by the invention, its beneficial effect is: hot bending efficiency is high, and after hot bending glass surface without pit.
Embodiment
Below in conjunction with an embodiment, the hot-bending method of laminated glass provided by the invention is described in detail.
Embodiment
The hot-bending method of the laminated glass of the present embodiment, it comprises the following steps:
(1) laminated glass substrate is carried out cleaning and drying;
(2) oven dry mera surface uniform is sprinkled silica flour, and be placed in female die of die;
(3) be placed in electrical heating type bending furnace by the mould placing substrate, start heating, when temperature reaches 680 DEG C, substrate starts distortion under the effect of self gravitation;
(4) when substrate curvature reaches consistent with die curvature, stop heating, slowly substrate is annealed;
(5) when furnace temperature drops to 95 DEG C, substrate is taken out.
Claims (1)
1. a hot-bending method for laminated glass, is characterized in that, it comprises the following steps:
1. laminated glass substrate is carried out cleaning and drying;
2. oven dry mera surface uniform is sprinkled silica flour, and be placed in female die of die;
3. be placed in electrical heating type bending furnace by the mould placing substrate, start heating, when temperature reaches 640-710 DEG C, substrate starts distortion under the effect of self gravitation;
4., when substrate curvature reaches consistent with die curvature, stop heating, slowly substrate is annealed;
5., when furnace temperature drops to below 100 DEG C, substrate is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442450.1A CN104512999A (en) | 2013-09-26 | 2013-09-26 | Method for bending sandwich glass through heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442450.1A CN104512999A (en) | 2013-09-26 | 2013-09-26 | Method for bending sandwich glass through heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104512999A true CN104512999A (en) | 2015-04-15 |
Family
ID=52788917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310442450.1A Pending CN104512999A (en) | 2013-09-26 | 2013-09-26 | Method for bending sandwich glass through heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104512999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382036A (en) * | 2017-08-29 | 2017-11-24 | 福建省万达汽车玻璃工业有限公司 | A kind of hot bending method of laminated glass on express locomotive |
-
2013
- 2013-09-26 CN CN201310442450.1A patent/CN104512999A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382036A (en) * | 2017-08-29 | 2017-11-24 | 福建省万达汽车玻璃工业有限公司 | A kind of hot bending method of laminated glass on express locomotive |
| CN107382036B (en) * | 2017-08-29 | 2020-10-13 | 福建省万达汽车玻璃工业有限公司 | Hot bending forming method for laminated glass on high-speed locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |
|
| WD01 | Invention patent application deemed withdrawn after publication |