CN107902881A - A kind of temperature setting method of the glass tempering heating furnace of multistage heating - Google Patents
A kind of temperature setting method of the glass tempering heating furnace of multistage heating Download PDFInfo
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- CN107902881A CN107902881A CN201711169263.5A CN201711169263A CN107902881A CN 107902881 A CN107902881 A CN 107902881A CN 201711169263 A CN201711169263 A CN 201711169263A CN 107902881 A CN107902881 A CN 107902881A
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- China
- Prior art keywords
- heating furnace
- furnace chamber
- heating
- glass
- temperature
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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
Abstract
The present invention relates to a kind of temperature setting method of the glass tempering heating furnace of multistage heating, in multiple heating furnace chambers, the design temperature of the heating furnace chamber adjacent with the heating furnace chamber of most downstream is higher than the target temperature that glass is heated, and the design temperature of the heating furnace chamber of most downstream is not higher than the design temperature of adjacent heating furnace chamber；By the temperature setting of above-mentioned multiple heating furnace chambers, glass heating-up temperature can be homogenized, reduces the uneven of heating, is conducive to improve the optical quality of tempered glass, reduces glass deformation.
Description
Technical field
The present invention relates to the temperature setting technology field of glass tempering heating furnace, specifically a kind of glass of multistage heating
The temperature setting method of tempering heating furnace.
Background technology
Currently, stove heat glass is heated through the glass tempering frequently with multistage heating.The glass tempering heating furnace by
Multiple heating furnace chambers rearrange, and one group of rollgang and heating element are both provided with each heating furnace chamber, glass is by conveying
Roller-way is transmitted in each heating furnace chamber and heats successively, is finally heated to target temperature and is transferred out.Its temperature setting method
It is：The design temperature of each heating furnace chamber is above the design temperature of the heating furnace chamber of adjacent upstream, the heating furnace chamber of most downstream
Design temperature be higher than the target temperature that is heated of glass.This method there are the problem of be：Since heating furnace chamber is constantly in liter
Temperature state, some position quick heatings of glass, some position heatings are slow, and the temperature difference of thermal self-restraint stress and minimum point is big, and temperature is most
Target temperature is heated to eventually to be directly transferred out, the non-uniform temperature at each position of glass be easy to causeing after heating, tempering
The optical quality of glass is poor, poor flatness.
The content of the invention
For each position of glass after the design temperature heating of the glass tempering heating furnace of above-mentioned existing multistage heating
Non-uniform temperature, the problems such as optical quality of tempered glass is poor, poor flatness, the present invention provides a kind of glass of multistage heating
The temperature setting method of tempering heating furnace.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of temperature setting method of the glass tempering heating furnace of multistage heating, the glass tempering heating furnace is by multiple heating
Furnace chamber rearranges, and one group of rollgang is both provided with each heating furnace chamber and heating element, glass are transmitted by rollgang
Heated successively in each heating furnace chamber, be finally heated to target temperature and be transferred out, in multiple heating furnace chambers, and most downstream
The design temperature of the adjacent heating furnace chamber of heating furnace chamber be higher than the target temperature that glass is heated, the heating furnace chamber of most downstream
Design temperature is not higher than the design temperature of adjacent heating furnace chamber.
The glass tempering heating furnace is rearranged by two or more heating furnace chamber, in addition to the heating furnace chamber of most downstream,
The design temperature of each heating furnace chamber is not less than the design temperature of the heating furnace chamber of adjacent upstream.
Beneficial effects of the present invention：
The temperature setting method of the glass tempering heating furnace of multistage heating provided by the invention, in multiple heating furnace chambers, and it is most lower
The design temperature of the adjacent heating furnace chamber of the heating furnace chamber of trip is higher than the target temperature that glass is heated, the heating furnace chamber of most downstream
Design temperature be not higher than adjacent heating furnace chamber design temperature；By the way that the temperature of the heating furnace chamber of most downstream is set as not
Higher than the design temperature of adjacent heating furnace chamber, the ramp-up time of glass temperature minimum point, glass temperature can be effectively filled up
The Wen Duxiajiang times of peak are spent, the drawn glass equalizing temperature time, make the temperature of whole glass more they tend to homogenize；This
Invention can be homogenized glass heating-up temperature, reduce the uneven of heating, favorably by the temperature setting of above-mentioned multiple heating furnace chambers
In the optical quality, the reduction glass deformation that improve tempered glass.
Brief description of the drawings
Fig. 1 is the glass tempering heating furnace schematic diagram of the multistage heating rearranged by two heating furnace chambers；
Fig. 2 is the setting method coordinate schematic diagram of glass tempering furnace temp shown in Fig. 1；
Fig. 3 is the glass tempering heating furnace schematic diagram of the multistage heating rearranged by four heating furnace chambers；
Fig. 4 is the setting method coordinate schematic diagram of glass tempering furnace temp shown in Fig. 3；
Reference numeral：1st, glass, 2, rollgang, 3, heating element；
Coordinate system transverse axis t represents that heating time, longitudinal axis T represent temperature；
F1, F2, F3, F4 are respectively first, second, third, fourth heating furnace chamber, t1, t2, t3, t4 be respectively glass first,
Second, third, time of completion is heated in the 4th heating furnace chamber, T0 is the target temperature that glass is heated, and T1, T2, T3, T4 are
The design temperature of first, second, third, fourth heating furnace chamber, a1, a2, a3, a4 are glass first, second, third, fourth
Temperature curve when being heated in heating furnace chamber.
Embodiment
With reference to embodiment, the present invention is further elaborated.
A kind of temperature setting method of the glass tempering heating furnace of multistage heating, the glass tempering heating furnace is by multiple
Heating furnace chamber rearranges, and one group of rollgang and heating element is both provided with each heating furnace chamber, glass is by rollgang
It is transmitted in each heating furnace chamber and heats successively, is finally heated to target temperature and is transferred out, in multiple heating furnace chambers, and most
The design temperature of the adjacent heating furnace chamber of the heating furnace chamber in downstream is higher than the target temperature that glass is heated, the heating furnace of most downstream
The design temperature of chamber is not higher than the design temperature of adjacent heating furnace chamber.
Embodiment 1
As shown in Figure 1 and Figure 2：The temperature setting of the glass tempering heating furnace of the multistage heating rearranged by two heating furnace chambers
Method.
The glass tempering heating furnace of the multistage heating rearranged by two heating furnace chambers, by two heating furnace chamber arrangement groups
Into being the first heating furnace chamber F1 respectively（The heating furnace chamber of upstream）, the second heating furnace chamber F2（The heating furnace chamber in downstream）.It is each to add
Hot stove intracavitary is both provided with one group of rollgang 2 and heating element 3, and glass 1 is transmitted in the first heating furnace chamber F1 by rollgang 2
（The heating furnace chamber of upstream）, the second heating furnace chamber F2（The heating furnace chamber in downstream）Inside heat successively, be finally heated to target temperature
T0, which is transferred out, to be come.Second heating furnace chamber（The heating furnace chamber in downstream）Design temperature T2 be less than the first heating furnace chamber（Upstream
Heating furnace chamber）Design temperature T1, the first heating furnace chamber（The heating furnace chamber of upstream）Design temperature T1 be heated higher than glass
Target temperature T0.
Embodiment 2
As shown in Figure 3, Figure 4：The temperature of the glass tempering heating furnace of the multistage heating rearranged by two or more heating furnace chamber
Setting method.Illustrate by taking the glass tempering heating furnace of the multistage heating rearranged by four heating furnace chambers as an example.
The glass tempering heating furnace of the multistage heating rearranged by four heating furnace chambers, by four heating furnace chamber arrangement groups
Into, it is the first heating furnace chamber F1, the second heating furnace chamber F2, the 3rd heating furnace chamber F3, the 4th heating furnace chamber F4 respectively, each heating
Be both provided with one group of rollgang 2 and heating element 3 in furnace chamber, glass 1 by rollgang 2 be transmitted in the first heating furnace chamber F1,
Second heating furnace chamber F2, the 3rd heating furnace chamber F3, heat in the 4th heating furnace chamber F4 successively, is finally heated to target temperature T0 quilts
Send out.Except the 4th heating furnace chamber F4（The heating furnace chamber of most downstream）The design temperature of outer each heating furnace chamber is above adjacent
The design temperature of the heating furnace chamber of upstream, i.e., the three, the second, design temperature T3, T2, T1 of the first heating furnace chamber reduce successively；
Setting temperature of the design temperature of the heating furnace chamber of most downstream less than the design temperature, i.e. the 4th heating furnace chamber of adjacent heating furnace chamber
Spend the design temperature T3 that T4 is less than the 3rd heating furnace chamber；The design temperature of the heating furnace chamber adjacent with the heating furnace chamber of most downstream,
That is the design temperature T3 of the 3rd heating furnace chamber, the target temperature T0 being heated higher than glass 1.
This method can be homogenized glass heating-up temperature, reduce the uneven of heating, be conducive to improve the optics of tempered glass
Quality, reduce glass deformation.
The above description of this invention is illustrative and not restrictive, and those skilled in the art understands, will in right
It can be carried out many modifications, change or equivalent by asking within the spirit and scope of restriction, but they fall within the present invention's
In protection domain.
Claims (2)
1. a kind of temperature setting method of the glass tempering heating furnace of multistage heating, the glass tempering heating furnace is added by multiple
Hot stove chamber rearranges, and one group of rollgang is both provided with each heating furnace chamber and heating element, glass are passed by rollgang
Send and heated successively in each heating furnace chamber, be finally heated to target temperature and be transferred out, it is characterised in that：
In multiple heating furnace chambers, and the design temperature of the adjacent heating furnace chamber of heating furnace chamber of most downstream is heated higher than glass
Target temperature, the design temperature of the heating furnace chamber of most downstream are not higher than the design temperature of adjacent heating furnace chamber.
2. the temperature setting method of the glass tempering heating furnace of multistage heating as claimed in claim 1, it is characterised in that：It is described
Glass tempering heating furnace rearranged by two or more heating furnace chamber, in addition to the heating furnace chamber of most downstream, each heating furnace chamber
Design temperature not less than adjacent upstream heating furnace chamber design temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711169263.5A CN107902881A (en) | 2017-11-22 | 2017-11-22 | A kind of temperature setting method of the glass tempering heating furnace of multistage heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711169263.5A CN107902881A (en) | 2017-11-22 | 2017-11-22 | A kind of temperature setting method of the glass tempering heating furnace of multistage heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107902881A true CN107902881A (en) | 2018-04-13 |
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ID=61846885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711169263.5A Pending CN107902881A (en) | 2017-11-22 | 2017-11-22 | A kind of temperature setting method of the glass tempering heating furnace of multistage heating |
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Citations (7)
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|---|---|---|---|---|
| CN2518858Y (en) * | 2001-11-12 | 2002-10-30 | 杭州聚能玻璃技术有限公司 | Double-furnace equipment for tempering glass |
| CN1824619A (en) * | 2006-03-17 | 2006-08-30 | 中国建筑材料科学研究院 | Preparation method of air strengthened glass |
| US7367205B1 (en) * | 2001-09-19 | 2008-05-06 | Boaz Premakaran T | System for simultaneously heating and cooling glass |
| CN101184969A (en) * | 2005-05-20 | 2008-05-21 | 富士胶片株式会社 | Heating apparatus and heating method |
| CN202594958U (en) * | 2012-03-26 | 2012-12-12 | 信义汽车玻璃(深圳)有限公司 | Improved structure for furnace body of automobile glass tempering furnace |
| CN103121793A (en) * | 2013-02-05 | 2013-05-29 | 天津南玻节能玻璃有限公司 | Toughening furnace for continuously producing half strengthened glass and production method of toughening furnace |
| CN104276769A (en) * | 2014-09-03 | 2015-01-14 | 宁波市合鑫玻璃科技有限公司 | Production process of Low-E (Low-Emissivity) laminated tempered glass by dry method |
-
2017
- 2017-11-22 CN CN201711169263.5A patent/CN107902881A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7367205B1 (en) * | 2001-09-19 | 2008-05-06 | Boaz Premakaran T | System for simultaneously heating and cooling glass |
| CN2518858Y (en) * | 2001-11-12 | 2002-10-30 | 杭州聚能玻璃技术有限公司 | Double-furnace equipment for tempering glass |
| CN101184969A (en) * | 2005-05-20 | 2008-05-21 | 富士胶片株式会社 | Heating apparatus and heating method |
| CN1824619A (en) * | 2006-03-17 | 2006-08-30 | 中国建筑材料科学研究院 | Preparation method of air strengthened glass |
| CN202594958U (en) * | 2012-03-26 | 2012-12-12 | 信义汽车玻璃(深圳)有限公司 | Improved structure for furnace body of automobile glass tempering furnace |
| CN103121793A (en) * | 2013-02-05 | 2013-05-29 | 天津南玻节能玻璃有限公司 | Toughening furnace for continuously producing half strengthened glass and production method of toughening furnace |
| CN104276769A (en) * | 2014-09-03 | 2015-01-14 | 宁波市合鑫玻璃科技有限公司 | Production process of Low-E (Low-Emissivity) laminated tempered glass by dry method |
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Application publication date: 20180413 |
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| RJ01 | Rejection of invention patent application after publication |