CN1034352A - Improve sheet glass method for quality and device - Google Patents
Improve sheet glass method for quality and device Download PDFInfo
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- CN1034352A CN1034352A CN 87104915 CN87104915A CN1034352A CN 1034352 A CN1034352 A CN 1034352A CN 87104915 CN87104915 CN 87104915 CN 87104915 A CN87104915 A CN 87104915A CN 1034352 A CN1034352 A CN 1034352A
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- glass
- sheet glass
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- electrostatic field
- positive electrode
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Abstract
The present invention is the method with electrostatic field, an annular positive electrode plate is set, glass ribbon passes through in the middle of the annular positive electrode plate, and the positive ion that makes glass surface carries out directed uniformly to inside of glass plate, the migration of little journey, thereby it is better to obtain quality, the sheet glass that the weathering resistance performance is stronger, the present invention is pollution-free, equipment is simple, less investment, cost are low, can be applicable to floating process, vertical drawing process technology, horizontal drawing technology is on the flat-type glasses technologies such as calendering technology.
Description
The invention relates to the surface treatment method of glass, particularly all processing of distribution together of sheet glass surface network gap ion, and isolated plant.
In order to improve the weathering resistance performance of glass surface, normal both at home and abroad washing, pickling, the SO of adopting
2Measures such as protective membrane, dusting, holding paper are smoked, are coated with to gas, and these measures have not only increased product cost, and are seriously polluted, and can not be from improving the quality of sheet glass in essence.
Russian patent 504721 and 525628 is introduced with electrochemical method and is handled the float glass upper surface, has obtained technicolo float glass and upper surface weathering resistance degree sheet glass preferably.But this method is because the contact of sheet glass upper surface is anodal, lower surface contact negative pole, sheet glass is under the DC electric field effect, the positive ion of upper surface, particularly easily and steam reaction, make the sodium ion of sheet glass weathering will inevitably be along the direction of electric field action, by the downward surface transport of upper surface, make positive ion in the lower surface enrichment, as a result, though surperficial weathering resistance degree on glass has improved, lower surface weathering resistance degree has reduced.
Purpose of the present invention is from improving the quality of sheet glass in essence, the upper and lower surface weathering resistance performance of sheet glass all is improved, and other performances also improve.
The present invention is the method with electrostatic field, and an annular positive electrode plate is set, and the glass ribbon upper and lower surface does not contact with battery lead plate, and and maintain a certain distance between battery lead plate, glass ribbon passes through in the middle of ring electrode.Distance between the area of annular electro pole plate and electrode and sheet glass is to adjust according to the grade of processed glass ribbon needs raising weathering resistance degree.That is to say, when the weathering resistance degree of sheet glass is relatively poor, then the area of battery lead plate will strengthen, and battery lead plate and sheet glass spacing will be dwindled, and are generally 10～20mm, also can be under the condition of the area that does not change battery lead plate and battery lead plate and sheet glass spacing, the voltage that increases used direct supply is realized, area can be identical up and down for battery lead plate, also can be inequality, be generally 0.1～1.0m
2Also be to manufacture according to the grade of processed glass ribbon needs raising weathering resistance degree.Float glass generally is that upper surface weathering resistance degree is relatively poor, and lower surface weathering resistance degree is better, so electric pole plate can be wideer, lower electrode can be narrower.The material of battery lead plate is a metal, and smooth surface is smooth, to guarantee filling into positive surface charge uniform distribution, is every processing 0.01m with direct supply to the power that the annular electro pole plate fills positive charge, galvanic current
2The glass of area needs the power of 6W, and according to Chinese Luoyang float glass, the viscosity of sheet glass is depended in the position that ring electrode is installed, and just makes the positive ion (Na of lower surface on glass
+) from the upper layer of glass, sub-surface layer is done the optimal temperature that little journey is moved to inside, general silicate glass can adopt near the position 500～600 ℃.The voltage of direct supply is 1000～3000V, and the treatment time is below 1 minute.
Advantage of the present invention is, sheet glass under the positive electrostatic field of annular, the positive ion of upper and lower surface, particularly travelling speed is fast, again easily and steam reaction, makes the sodium ion (Na of sheet glass weathering
+), can be uniformly under the temperature condition that satisfies its migration to carry out directedly to inside of glass plate, the migration of little journey obtains weathering resistance performance sheet glass preferably.Simultaneously, sheet glass under the UNIFORM ELECTROSTATIC FIELD effect, the Ca in silicate glass network structure gap
++, Mg
++Bivalent positive ion can be realized all neat moving, and can remedy because of refining quality badly to a certain extent, produces the second-rate defective of sheet glass.The present invention is pollution-free, and equipment is simple, less investment, and cost is low, can be applicable to floating process, and vertical drawing process technology is on the flat-type glasses technologies such as horizontal drawing technology, calendering technology.Glass weathering resistance degree after the processing improves greatly, the all neat phenomenon that (more than two times), glass surface are formed also improves greatly, because all changes together of component, improved the quality of sheet glass greatly, its transparence, hardness, intensity, thermostability and chemical stability etc. all obviously improve.
When on floatation glass production line, using, ring electrode is installed between first and second road roller of annealing furnace entrance end, here temperature is generally 550～600 ℃, the float glass surface structure is loose, fastness to efflorescence is poor, and the lower surface configuration densification has the infiltration of tin and the enrichment of calcium, fastness to efflorescence is good, and the area of ring electrode upper surface is twice than the area of lower surface.Ring electrode is flexible for installation, runs into when having an accident in the production, can shift out at any time, will carry out insulating protection around the ring electrode.
Float glass process is produced and is illustrated in conjunction with figure one, 1,2 is ring electrode, 1 upper surface at glass ribbon, want wideer, 2 lower surfaces at glass ribbon, want narrower, 1, between 2 after the sheet glass both sides link to each other with conductor, be connected on the positive pole of direct supply, the negative pole of direct supply is connected on back ground connection on the movable roller of holder glass ribbon, and the annular electro pole plate is fixed on the annealing furnace 5 with screw 4, can move, glass ribbon 3 passes through in ring electrode centre, 8 is that molten tin bath, 7 is the roller of moving roil table, and 6 is the movable roller of annealing furnace holder glass ribbon.
As shown in Figure 2, ring electrode is installed in the position between 500～600 ℃ of the glass cools temperature, or the high-temperature zone of forming room in vertical drawing is produced.
Embodiment: cylinder iron or the electrode made of steel, fill with the positive surface charge of direct current, voltage 2500V, 550 ℃ of temperature, the thick 3mm of float glass, the treatment time is below one minute, ring electrode top and bottom spacing 14mm, lower surface on glass after treatment is all not mouldy, and mildew appears in undressed glass after 2 days, occurs rainbow and the mildew that is linked to be sheet after 4 days.
(mouldy test method: at relative air humidity is 85%.Under 85 ℃ of the temperature, after 4 days, 6 days, 8 days, 10 days, 12 days reinforcement weathering were handled, mildew, mildew, rainbow situation appearred in the sight glass surface).
Description of drawings:
Figure one: the longitudinal diagram of the annular electro pole plate of installing on float glass belt
1-is at the ring electrode of glass ribbon upper surface.
2-is at the ring electrode of glass ribbon lower surface.
The 3-glass ribbon
The 4-screw.
The 5-annealing furnace.
The movable roller of 6-annealing furnace holder glass ribbon.
The roller of 7-moving roil table.
The 8-molten tin bath.
Figure two: the scheme of installation of ring electrode in vertical drawing process is produced.
The 1-sheet glass
The 2-ring electrode
The 3-debitense
4-glass edges of boards
5-glass buttress
The 6-metal level
Claims (4)
1, uses the method for electrostatic field, the sheet glass surface is handled, feature of the present invention is: an annular positive electrode plate is set, glass ribbon passes through in the middle of the annular positive electrode plate, make the positive ion of glass surface carry out migration directed, little journey to inside of glass plate uniformly, thereby obtain the better and stronger sheet glass of weathering resistance performance of quality.
2, as the method for claim one, it is characterized in that positive electrostatic field, direct supply, voltage max is 3KV.
3, as the method for claim one, the temperature that it is characterized in that electrostatic field is 500～600 ℃.
4, as the method for claim one, area can be different up and down to it is characterized in that battery lead plate, are generally 0.1～1.0m
2, the spacing of power-on and power-off pole plate and sheet glass also can be different.Be generally 10～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104915 CN1013956B (en) | 1987-08-04 | 1987-08-04 | Method and equipment for upgrading the quality of plate glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104915 CN1013956B (en) | 1987-08-04 | 1987-08-04 | Method and equipment for upgrading the quality of plate glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1034352A true CN1034352A (en) | 1989-08-02 |
| CN1013956B CN1013956B (en) | 1991-09-18 |
Family
ID=4815060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87104915 Expired CN1013956B (en) | 1987-08-04 | 1987-08-04 | Method and equipment for upgrading the quality of plate glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013956B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962514B (en) * | 2006-11-13 | 2010-12-15 | 武汉理工大学 | Process for improving chemical stability of flat glass |
| CN110170413A (en) * | 2019-05-31 | 2019-08-27 | 唐山佐仑环保科技有限公司 | A kind of spraying film-forming system of photo-catalytic sterilization glass |
| CN111333348A (en) * | 2020-03-10 | 2020-06-26 | 醴陵旗滨电子玻璃有限公司 | Chemical strengthening method, chemical strengthening device and chemically strengthened glass |
-
1987
- 1987-08-04 CN CN 87104915 patent/CN1013956B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962514B (en) * | 2006-11-13 | 2010-12-15 | 武汉理工大学 | Process for improving chemical stability of flat glass |
| CN110170413A (en) * | 2019-05-31 | 2019-08-27 | 唐山佐仑环保科技有限公司 | A kind of spraying film-forming system of photo-catalytic sterilization glass |
| CN111333348A (en) * | 2020-03-10 | 2020-06-26 | 醴陵旗滨电子玻璃有限公司 | Chemical strengthening method, chemical strengthening device and chemically strengthened glass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1013956B (en) | 1991-09-18 |
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