CN101580340B - Continuous type precise control annealing technology of glass lamp - Google Patents
Continuous type precise control annealing technology of glass lamp Download PDFInfo
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- CN101580340B CN101580340B CN200910147791XA CN200910147791A CN101580340B CN 101580340 B CN101580340 B CN 101580340B CN 200910147791X A CN200910147791X A CN 200910147791XA CN 200910147791 A CN200910147791 A CN 200910147791A CN 101580340 B CN101580340 B CN 101580340B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a continuous type precise control annealing technology of a glass lamp, which adopts a groove-shaped channel-type annealing furnace, carries out six-temperature-zone annealing treatment to the glass lamp at uniform speed by a transmission belt, improves the plasticity and toughness of the glass lamp, leads the chemical components to be homogenized, and enhances the mechanical strength and cold and heat resistant property of the glass in the glass lamp. As precise control is carried out to the temperature and time of hot treatment of the glass lamp, the thermal stress and residual stress in the glass lamp are effectively removed, the mechanical strength and shock resistance of the glass lamp are improved, and the self-burst phenomenon of the glass lamp is effectivelyavoided. The technology also adopts continuous type one-time processing molding, improves the bearing capacity of the glass lamp, and enhances the wind pressure and shock resistance of the glass lamp. The continuous type precise control annealing technology of the glass lamp not only improves the throughput and yield, but also lowers the production cost and improves the economic efficiency of enterprises.
Description
Technical field
The invention belongs to the electric light source technology field, relate to a kind of heat treating method of glass lamp, be specifically related to a kind of glass lamp continuous type precise control annealing method.
Background technology
Glass is the poor conductor of heat, when glass is heated or cooled, will stand violent uneven temperature variation, in the sizable temperature head of the inner generation of glass.The glass surface temperature height that directly is heated during heating, the glass internal temperature that is heated indirectly is low, and the glass outer layer of being heated that at this moment temperature is high makes every effort to expand to expansion all around.And internal layer expands to such an extent that do not have skin so much because temperature is low.Like this, glass outer will give inner layer glass one tension force because of inner layer glass expands inadequately, inner layer glass be followed oneself be expanded together, and inner layer glass will be to glass outer one pressure, to suppress the expansion of glass outer then because of the glass outer superdistension.Glass is inner, and this is a pair of because of the inconsistent reactive force that brings that expands everywhere, is exactly the stress of glass inside---and tension stress and stress, stress is big to a certain degree causing the glass explosion.
The thermal expansivity of Glass tubing is bigger, and in fluorescent tube blowing process, there are an invert point in flame heating Glass tubing or cooled glass, and it is meant that the viscosity of glass is 10
13.4Temperature during pool.When heating glass is to invert point, along with the increase of heat-up time, the temperature of glass will continue to rise, and the temperature head between ectonexine also will progressively be dwindled, and temperature will reach unanimity, and stress will be eliminated.When glass cools, if the restriction speed of cooling makes and is extended down to sufficiently long cooling time, the glass temperature inside also can progressively reach unanimity, and stress also can disappear.This existence with thermograde exists, and the stress with the disappearance of thermograde disappears is called temporary stress.The thermal expansivity of Glass tubing is bigger, and in fluorescent tube blowing process, flame heating Glass tubing or refrigerative excessive velocities can cause than serious stress in Glass tubing.This difference because of temperature is called thermic stress in the inner internal stress that produces of Glass tubing.Therefore, explosion as the elimination internal stress of not annealing, will take place in glass lamp in use after thermoforming processing.
So-called annealing, be exactly with glass finished product reheat to more than the invert point of glass, slowly cooling then makes the inside of glass lamp and exospheric temperature be reduced to the following technological process of invert point simultaneously.ANNEALING OF GLASS is a heat treated process.It comprises intensification, insulation, slow cooling and fast cold four-stage.Wherein the slow cooling stage is the most important.
Making in the glow discharge spot lamp process of glass lamp, owing to use contact surface scorification bonding be connected together of thermal-flame with glass lamp and electrode, therefore contact surface has stood violent temperature variation and change of shape in the position on every side with it, this secondary hot-work also can produce stress in Glass tubing, this stress can reduce glass intensity and thermostability, because the existence of stress, as not carrying out anneal, then be bound to cause the explosion of glasswork, explosion takes place in severe patient at once, and not serious person is subjected to condition influence generation explosions such as difference variation or rainwater often during Glass lamp work.Therefore, must carry out strict anneal in the process engineering, improve the reliability of fluorescent tube.
Summary of the invention
The purpose of this invention is to provide a kind of glass lamp continuous type precise control annealing method, by the accurate control of the Baltimore groove channel-type annealing furnace six warm area continous ways short annealing technology that eliminates stress, thoroughly eliminated the stress of secondary processing in the Glass tubing, strengthened Glass tubing self anti-wind pressure, cold and heat, impact have been improved the plasticity and the toughness of Glass tubing, and physicals is changed, molecular structure is homogenizing more, has solved the phenomenon that explosion voluntarily takes place glass lamp effectively.
The technical solution adopted in the present invention is, a kind of glass lamp continuous type precise control annealing method, this technology adopts Baltimore groove channel-type annealing furnace, by transport tape the turnover stove of glass lamp is accurately controlled the speed of processing with six warm areas, at the uniform velocity anneal is carried out in the glass lamp part; Glass tubing is put and is spaced apart 1cm, and described six warm areas are divided into: preheating zone, heating zone, high-temperature zone, cooling one district, cooling two districts, natural cooling area.
Six warm area temperature are set at respectively: the preheating zone: 50～278 ℃, and heating zone: 278～480 ℃, the high-temperature zone: 480～455 ℃, cooling one district: 455～268 ℃, cooling two districts: 268～165 ℃, natural cooling area: 165～50 ℃.
The accurate feed glass modulator tube annealing time of glass lamp continous way of the present invention is 56 minutes, and 16 time periods, the time that enters six warm areas is controlled to be respectively:
Entering the preheating zone was 2 time periods, from 0～7 minute;
Entering heating zone was 3 time periods, from 7～17.5 minutes;
Entering the high-temperature zone was 3 time periods, from 17.5～28 minutes;
Entering cooling one district was 3 time periods, from 28～38.5 minutes;
Entering cooling two districts is that 2 time periods were from 38.5～45.5 minutes;
Entering the nature cooling area was 3 time periods, from 45.5～56 minutes.
Glass lamp continuous type precise control annealing method of the present invention, its feature also be,
Described six warm areas, except that natural cooling area, each warm area of annealing furnace all adopts the electrothermal quartz tube heating.
Because the heat treated temperature and time of glass lamp is accurately controlled, removed thermal stresses and the unrelieved stress in the glass lamp effectively, improve mechanical strength, cold-and-heat resistent performance and the impact resistance of glass lamp, solved the phenomenon that explosion voluntarily takes place glass lamp effectively.
Adopt the disposable machine-shaping of continuous type precise control annealing, improved the glass lamp supporting capacity, strengthened glass lamp self anti-wind pressure, cold and heat, impact, wastage rate obviously reduce simultaneously; When improving production capacity and yield rate, greatly reduce production cost, improved economic benefit of enterprises.
Description of drawings
Accompanying drawing is diameter phi 8mm～φ 25mm, the glass lamp continuous type precise control annealing temperature and time control chart of wall thickness 1.2～1.5mm.
Among the figure: 1-preheating zone, 2-heating zone, 3-high-temperature zone, the 4-district that lowers the temperature, 5-two districts that lower the temperature, 6-nature cooling area.
T: representation temperature, t: representative time.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
A kind of glass lamp continuous type precise control annealing method, this technology adopts groove shape channel-type annealing furnace, by transport tape at the uniform velocity glass lamp is adopted six warm area anneal, Glass tubing is put and is spaced apart 1cm, and described six warm areas are divided into: preheating zone, heating zone, high-temperature zone, cooling one district, cooling two districts, natural cooling area;
As shown in drawings, six warm area temperature are set at respectively: the preheating zone: 50～278 ℃, and heating zone: 278～480 ℃, the high-temperature zone: 480～455 ℃, cooling one district: 455～268 ℃, cooling two districts: 268～165 ℃, natural cooling area: 165～50 ℃.
Described glass lamp annealing time is 56 minutes, and 16 time periods, the time that enters six warm areas is controlled to be respectively:
Entering the preheating zone was 2 time periods, from 0～7 minute;
Entering heating zone was 3 time periods, from 7～17.5 minutes;
Entering the high-temperature zone was 3 time periods, from 17.5～28 minutes;
Entering cooling one district was 3 time periods, from 28～38.5 minutes;
Entering cooling two districts is that 2 time periods were from 38.5～45.5 minutes;
Entering the nature cooling area was 3 time periods, from 45.5～56 minutes.
The present invention is divided into six different warm areas with 16 meters long groove shape channel-type annealing furnace combustion flue, (suspension) put by the interval of 1cm in the position that processes glass lamp to be sent in the annealing furnace on transport tape, five warm areas in the annealing furnace except that natural cooling area adopt electrothermal quartz tube to be heated to design temperature, glass lamp is at the uniform velocity advanced with transport tape, temperature heating glass fluorescent tube by gradual change in the different warm areas of the Baltimore groove channel-type annealing furnace zone, implement heat treatment process, anneal through the accurate controlled temperature of six warm area continous ways, make glass lamp by low temperature to high temperature, again in the process of handling by high temperature to low-temperature annealing, thoroughly eliminated the stress in the glass lamp, strengthened Glass tubing self anti-wind pressure, cold and heat, impact, the plasticity and the toughness of Glass tubing have been improved, make the chemical ingredients homogenizing, solved the phenomenon that explosion voluntarily takes place glass lamp effectively.
Use glass lamp continuous type precise control annealing method of the present invention, after the annealed processing with do not have the glass lamp of annealed processing to contrast after tested, cold fried rate contrast table is as follows:
Cold fried rate contrast table before and after the glass lamp anneal
Can see by last table, through using the glass lamp of anneal of the present invention, glass lamp time more than-20 ℃ cold fried rate be 0, time below-20 ℃ cold fried rate do not reduce greatly than glass lamp through anneal, thermal effectiveness is very obvious.
The description of technique scheme is an an example of the present invention; not to be used for limiting enforcement of the present invention and interest field; all equivalences of making according to the described content of the present patent application scope of patent protection change and modify, and all should be included in the present patent application claim.
Claims (2)
1. glass lamp continuous type precise control annealing method, it is characterized in that, this method adopts groove shape channel-type annealing furnace, by transport tape at the uniform velocity glass lamp is adopted six warm area anneal, Glass tubing is put and is spaced apart 1cm, and described six warm areas are divided into: preheating zone, heating zone, high-temperature zone, cooling one district, cooling two districts, natural cooling area;
Six warm area temperature are set at respectively: the preheating zone: 50～278 ℃, and heating zone: 278～480 ℃, the high-temperature zone: 480～455 ℃, cooling one district: 455～268 ℃, cooling two districts: 268～165 ℃, natural cooling area: 165～50 ℃;
The accurate feed glass modulator tube annealing time of glass lamp continous way of the present invention is 56 minutes, and 16 time periods, the time that enters six warm areas is controlled to be respectively:
Entering the preheating zone was 2 time periods, from 0～7 minute;
Entering heating zone was 3 time periods, from 7～17.5 minutes;
Entering the high-temperature zone was 3 time periods, from 17.5～28 minutes;
Entering cooling one district was 3 time periods, from 28～38.5 minutes;
Entering cooling two districts is that 2 time periods were from 38.5～45.5 minutes;
Entering the nature cooling area was 3 time periods, from 45.5～56 minutes.
2. glass lamp continuous type precise control annealing method according to claim 1 is characterized in that, described six warm areas, and except that natural cooling area, each warm area of annealing furnace all adopts the electrothermal quartz tube heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910147791XA CN101580340B (en) | 2009-06-22 | 2009-06-22 | Continuous type precise control annealing technology of glass lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910147791XA CN101580340B (en) | 2009-06-22 | 2009-06-22 | Continuous type precise control annealing technology of glass lamp |
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| CN101580340A CN101580340A (en) | 2009-11-18 |
| CN101580340B true CN101580340B (en) | 2011-01-05 |
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| CN103258702A (en) * | 2012-02-20 | 2013-08-21 | 江苏百正光电科技有限公司 | Production line for production of low-frequency electrodeless lamp |
| CN104890362B (en) * | 2015-05-18 | 2017-11-21 | 山东泰山华岳玻璃有限公司 | Secondary operation and the will never fade glass post-processing technique of pattern can be carried out |
| CN107056031A (en) * | 2017-04-13 | 2017-08-18 | 四川圣典节能服务有限公司 | A kind of electricity-saving lamp annealing process |
| CN107986608A (en) * | 2018-01-08 | 2018-05-04 | 汕头市万域新能源科技有限公司 | Bottle quick automatic forming equipment and a forming method are blown in a kind of control |
| CN109502960B (en) * | 2019-01-22 | 2024-04-02 | 安徽凤阳亚欧玻璃工艺品有限公司 | High boron glass tea set stress relief equipment |
| CN111204959A (en) * | 2020-02-21 | 2020-05-29 | 连云港国伦石英制品有限公司 | Annealing method of quartz tube |
| CN112250289B (en) * | 2020-10-22 | 2022-03-25 | 安徽凯盛基础材料科技有限公司 | Heat treatment method of glass ball cabin |
| CN112960897A (en) * | 2021-03-01 | 2021-06-15 | 金玛瑙香水（明光）有限公司 | Method for removing stress of thick-bottom glass bottle |
| CN115043581B (en) * | 2022-06-30 | 2023-11-24 | 绍兴旗滨玻璃有限公司 | Method for prolonging annealing cellar and annealing cellar |
| CN117550804B (en) * | 2024-01-11 | 2024-03-19 | 上海罗金光电科技有限公司 | Low-cost ultraviolet-transmitting lamp tube glass and annealing process thereof |
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