CN104230150A - Method for making bent glass - Google Patents
Method for making bent glass Download PDFInfo
- Publication number
- CN104230150A CN104230150A CN201310248026.3A CN201310248026A CN104230150A CN 104230150 A CN104230150 A CN 104230150A CN 201310248026 A CN201310248026 A CN 201310248026A CN 104230150 A CN104230150 A CN 104230150A
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- glass
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- flat glass
- shaping dies
- temperature
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a method for making bent glass. The method is characterized by comprising the following steps: placing a flat glass panel into a forming mould, wherein a concave forming surface is formed on the forming mould; placing the flat glass panel into the concave forming surface, heating to glass deformable temperature, and adhering the flat glass panel to the concave forming surface of the forming mould so as to be formed into a bent glass panel; then heating the flat glass panel and the forming mould together to 620-650 DEG C to soften the glass, wherein temperature increase time is 30-40 minutes; and then keeping the temperature for 20-30 minutes, and finally reducing to room temperature at the cooling rate of 30-50 minutes. The bent glass made by the method disclosed by the invention has no heat stress and has no phenomenon of cracking in a using process.
Description
Technical field
The present invention relates to a kind of manufacture method of bend glass.
Background technology
Now for the processing of face glass with curved surface, general hot pressing mode or the mechanical workout mode of adopting is shaped at present, the concrete grammar adopting hot pressing mode to be shaped is employing one shaping dies, this shaping dies comprises mold and bed die, face glass and described mold and bed die are together heated to high temperature about 800 DEG C, then utilize mold to move toward bed die direction to apply pressure to face glass, the upper and lower surface of face glass is caused to be shaped, finally carry out cooling down, thus obtain that there is curved glass panel.When adopting this hot press forming method, there is thermal stresses in bend glass, easily bursts during use.
Summary of the invention
Technical problem to be solved by this invention is the manufacture method providing a kind of bend glass for the weak point existing for existing method, and the method course of processing is simple, and planarization is better.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
The manufacture method of bend glass, is characterized in that, a flat glass panels is placed in a shaping dies, described shaping dies is formed a spill forming face; Described flat glass panels is put into described spill forming face and is heated to glass deformable temperature, described flat glass panels is attached to the spill forming face of described shaping dies, thus described flat glass panels is configured as curved glass panel; Then described flat glass panels is together heated to 620 ~ 650 degree together with described shaping dies, causes Glass Transition; Heating-up time is 30 ~ 40 minutes; Then keep temperature 20 ~ 30 minutes, be finally down to room temperature, cooling rate is 30 ~ 50 minutes.
Owing to have employed technical scheme as above, there is not thermal stresses in the bend glass that the present invention obtains, there is not Decrepitation Phenomena in use procedure.
Embodiment
The manufacture method of bend glass, is placed into a flat glass panels in a shaping dies, shaping dies is formed a spill forming face; Flat glass panels is put into spill forming face and is heated to glass deformable temperature, flat glass panels is attached to the spill forming face of shaping dies, thus flat glass panels is configured as curved glass panel; Then flat glass panels is together heated to 620 ~ 650 degree together with shaping dies, causes Glass Transition; Heating-up time is 30 ~ 40 minutes, prevents instant heating from causing breaking of glass and glass residual stress; Then keep temperature 20 ~ 30 minutes, make the internal and external temperature of glass even, what prevent differences in expansion inside and outside glass from causing breaks and residual stress.Finally be down to room temperature, cooling rate is 30 ~ 50 minutes, prevents from cooling rapidly causing breaking and residual stress in glass of glass.
Claims (1)
1. the manufacture method of bend glass, is characterized in that, a flat glass panels is placed in a shaping dies, described shaping dies is formed a spill forming face; Described flat glass panels is put into described spill forming face and is heated to glass deformable temperature, described flat glass panels is attached to the spill forming face of described shaping dies, thus described flat glass panels is configured as curved glass panel; Then described flat glass panels is together heated to 620 ~ 650 degree together with described shaping dies, causes Glass Transition; Heating-up time is 30 ~ 40 minutes; Then keep temperature 20 ~ 30 minutes, be finally down to room temperature, cooling rate is 30 ~ 50 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248026.3A CN104230150A (en) | 2013-06-21 | 2013-06-21 | Method for making bent glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248026.3A CN104230150A (en) | 2013-06-21 | 2013-06-21 | Method for making bent glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104230150A true CN104230150A (en) | 2014-12-24 |
Family
ID=52219170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310248026.3A Pending CN104230150A (en) | 2013-06-21 | 2013-06-21 | Method for making bent glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104230150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274240A (en) * | 2015-05-22 | 2017-01-04 | 小米科技有限责任公司 | Make the tool method of figuratum 3D bend glass, 3D bend glass and terminal |
-
2013
- 2013-06-21 CN CN201310248026.3A patent/CN104230150A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274240A (en) * | 2015-05-22 | 2017-01-04 | 小米科技有限责任公司 | Make the tool method of figuratum 3D bend glass, 3D bend glass and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |