CN1666966A - Process for pressing watermark glass and its special pressing device - Google Patents
Process for pressing watermark glass and its special pressing device Download PDFInfo
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- CN1666966A CN1666966A CN 200410014301 CN200410014301A CN1666966A CN 1666966 A CN1666966 A CN 1666966A CN 200410014301 CN200410014301 CN 200410014301 CN 200410014301 A CN200410014301 A CN 200410014301A CN 1666966 A CN1666966 A CN 1666966A
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Abstract
This invention relates to a drain mark press technique method, and also a dedicated device for the method. Procedures includes dense roller feeding, heating softening, cladding to stripe, stress remove and annealing. Plate glass of thickness is 2.5-5mm is send into tunnel kiln hood by ball track converyor and other dedicated device includes heating equipment, convey equipment and press roll. Then it is heated to 7000C-8000Cfor softening, and drain mark is pressed by ripple press roll of sagging surface, then cool down and annealing. It initiates a method of making drain mark from inexpensive finished plate glass. Drain mark with good diffusion effect and good light transmittance is got through brief technique process, and the factory cost of drain mark is reduced largely.
Description
Technical field
The present invention relates to a kind of method of manufacturing technology of glass, especially a kind of pressing process method of special glass the invention still further relates to the special-purpose pressing device for realizing that this processing method designs simultaneously.
Background technology
Along with the raising of people's quality of life and carrying out of city lighting engineering, lighting has occurred not only dazzle-free, simultaneously but also have a special glass demand of enough transparences.Have the diffusion effect though domestic existing is decorated with figured glass, the light that sees through is no longer dazzle the eyes, the transmittance of this glass only has an appointment 40%, can reduce the illumination of light fixture during as fitting glass greatly.
At present, foreign-made goes out the glass that a kind of surface has the fluctuating ripple, because its surface resembles the ripples of the water surface very much, therefore is called water wave glass in the industry.The ripple of this glass surface has the diffusion effect that makes light generation deflection, simultaneously because the ripple that rises and falls is excessively slick and sly, so still have good transparence.Understand according to the applicant, above-mentioned water wave glass is by a complete set of production line manufacturing,---discharging------open and flat---cooling of roll extrusion that its basic craft course is melting.In this technological process, glass metal is extruded external waviness by nip drum under the soft condition of cooling preliminarily forming of coming out of the stove, open and flat gradually in the course of conveying of conveying roller again, and final cooling shaping is made blocks of glass finished product.
Because whole production line comprises main equipments such as smelting furnace, therefore invest hugely, domesticly so far introduce yet, cause the price of import water wave glass high always.
Summary of the invention
The technical problem that will solve of the present invention is: propose a kind of water wave glass pressing process method that adopts simple and easy specific equipment to produce, provide corresponding compacting specific equipment simultaneously, thereby reduce the manufacturing door of water wave glass, produce low-cost homemade water wave glass, create conditions for participating in international competition.
In order to solve above technical problem, the applicant has formed water wave glass pressing process method of the present invention finally through for many years the test of groping, and this method may further comprise the steps:
1), close roller charging---with the sodium calcium silicon sheet glass of thickness, send the tunnel like heating unit to the close roller transfer roller of width between centers 15-40 millimeter in 2.5-5 millimeter scope.
Roller width between centers is too small, and rigidity own is not enough, can't keep glass laterally smooth; Width between centers is excessive, will cause the soften glass distortion that vertically rises and falls again.Reasonably roller width between centers has been avoided soften glass joining seam jam, has guaranteed to send to smoothly, keeps soften glass smooth all the time simultaneously, thereby has guaranteed the compacting quality.
2), thermoplastic---with above-mentioned sheet glass even heating to 700 ℃-800 ℃.
Temperature is too high, and glass is too soft, can't keep smooth; Temperature is low excessively, and glass is softening not enough, is difficult to suppress the ideal water wave, even glass can be crushed.700 ℃-800 ℃ can make the glass table soft and interior hard, the most suitable compacting.
3), be rolled into line---adjust roller space according to thickness of glass, suppress the sheet glass of heating with the ripple pressure roller of concave-convex surface fluctuating 0.2-0.5 millimeter.
It is too little to rise and fall, the water wave DeGrain of glass, and diffusion effect is undesirable; It is too big to rise and fall, and rib can appear in glass surface, weakens transmittance.
4), stress relief annealing---the glass after will suppressing slowly is cooled to 520 ℃-480 ℃ from 800 ℃-700 ℃ through 1-4 minute.
5), cooling----glass after will annealing is cooled to room temperature gradually.
The main chemical compositions of above sodium calcium silicon sheet glass is advisable with silicon-dioxide 70-73%, sodium oxide 13-15%, calcium oxide 7-12%, aluminum oxide 0.2-2%.
Comprise heating installation, e Foerderanlage and pressure roller in order to the special-purpose pressing device of the water wave glass of realizing above technology, described heating installation is continuous four-part form tunnel kiln, first section heating zone that is controlled at 700 ℃-800 ℃ for temperature, second section is the press section in the middle part of being positioned at tunnel kiln, the 3rd section is that the 4th section is cooling section from 800 ℃-700 ℃ annealing sections that are cooled to 520 ℃-480 ℃ gradually; Described handling equipment is the Roller Conveyors of roller width between centers 15-40 millimeter, the described Roller Conveyors kiln that passes through tunnel; Described roller surface is shaped on the ripple of concavo-convex 0.2-0.5 millimeter, is installed in the press section of tunnel kiln.
Behind the starting outfit, be that the sheet glass of 2.5-5 millimeter is placed on the Roller Conveyors, send tunnel kiln to thickness, being heated to 700 ℃-800 ℃ softens, ripple pressure roller through concave-convex surface is pressed into out water wave, is cooled to 520 ℃-480 ℃ gradually, cooling at last from 800 ℃-700 ℃.
Above processing method has been broken water wave glass from melting, through roll extrusion, open and flat traditional a whole set of technique manufacturing method until setting, the finished product sodium calcium silicon sheet glass of having started with cheapness is the beginning that raw material is made water wave glass, and because scientifically grope and grasped softening temperature, the conveying roller width between centers of arranging, the key process parameter that the pressure roller lines degree of depth etc. are relevant, so both guaranteed the continuous reliably open and flat conveying of soften glass, realized extrusion ideal ripple again, had the water wave glass that good diffusion effect has desirable transmittance simultaneously again thereby produce with brief technological process.Obviously, technology of the present invention is simple, and investment of production equipment is little, can reduce the manufacturing cost of water wave glass greatly.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the special-purpose pressing device structural representation of one embodiment of the invention.
Embodiment
Embodiment one
The water wave glass of present embodiment adopts special-purpose pressing device manufacturing shown in Figure 1, and this equipment mainly is made up of continuous four-part form tunnel kiln 1, e Foerderanlage 2 and pressure roller 3.
Tunnel kiln 1 is divided into four sections by reducing everywhere, first section heating zone A that is controlled at 700 ℃-800 ℃ for temperature, second section is the press section B in the middle part of being positioned at tunnel kiln, and the 3rd section is that the 4th section is cooling section D from 800 ℃-700 ℃ annealing section C that are cooled to 520 ℃-480 ℃ gradually.First section and the 3rd section electric heating tube 4 all is housed up and down, so temperature control is convenient.
Roller surface is shaped on concavo-convex 0.4 millimeter ripple embossing, is installed in the press section B of tunnel kiln.The installed in front of pressure roller has air cooled tube 5, helps the table cold shaping after glass is suppressed like this, prevents that glass and pressure roller are sticking glutinous, improves transmittance.
Adding man-hour, is that the common sodium calcium of a kind of specification silicon sheet glass 6 of 2.5-5 millimeter scope is placed on the ceramic roller of transfer roller 2 with thickness, sends tunnel kiln 1 to.Adjust roller space according to thickness of glass.Heating zone electrically heated temperature is controlled at 700 ℃-800 ℃ (the final selection of this example is controlled at 740 ℃-780 ℃), makes glass surface softening.Glass after the roller that gathers can guarantee to heat is steadily carried, through pressure roller section B the time, suppress the surface and come, be aided with the temperature that air cooling reduces the ripple pressure roller simultaneously, with the too high sticking glutinous glass of the temperature that prevents the ripple pressure roller with the on all four water wave of pressure roller ripple.In continuing course of conveying, the glass after the shaping through 1-4 minute (this example finally is stabilized in 2-3 minute), gradually is cooled to 520 ℃-480 ℃ from 800 ℃-700 ℃ in the annealing section, and slowly thermal stresses is eliminated in cooling, enters cooling section D again and is cooled to room temperature.
Facts have proved that the water wave glass that processes with present embodiment has the ideal diffuse effect during as fitting glass, transmittance reaches more than 70%, can satisfy the demand fully, and its manufacturing cost reduces greatly.Experiment showed, repeatedly at above parameter area to change that the compacting mass discrepancy of water wave glass is little.
Claims (5)
1. water wave glass pressing process method may further comprise the steps:
1), close roller charging---send thickness to the tunnel like heating unit at the sodium calcium silicon sheet glass of 2.5-5 millimeter scope with the close roller transfer roller of width between centers 15-40 millimeter;
2), thermoplastic---with sheet glass even heating to 700 ℃-800 ℃;
3), be rolled into line---adjust roller space according to thickness of glass, suppress the sheet glass of heating with the ripple pressure roller of concave-convex surface fluctuating 0.2-0.5 millimeter;
4), stress relief annealing---the glass after will suppressing slowly is cooled to 520 ℃-480 ℃ from 800 ℃-700 ℃ through 1-4 minute;
5), cooling---the glass after will annealing is cooled to room temperature gradually.
2. according to the described water wave glass of claim 1 pressing process method, it is characterized in that: described thermoplastic temperature is controlled at 740 ℃-780 ℃.
3. a water wave glass is suppressed specific equipment, comprise heating installation, e Foerderanlage and pressure roller, it is characterized in that: described heating installation is continuous four-part form tunnel kiln, first section heating zone that is controlled at 700 ℃-800 ℃ for temperature, second section is the press section in the middle part of being positioned at tunnel kiln, the 3rd section is that the 4th section is cooling section from 800 ℃-700 ℃ annealing sections that are cooled to 520 ℃-480 ℃ gradually; Described handling equipment is the Roller Conveyors of roller width between centers 15-40 millimeter, the described Roller Conveyors kiln that passes through tunnel; Described roller surface is shaped on the ripple of concavo-convex fluctuating 0.2-0.5 millimeter, is installed in the press section of tunnel kiln.
4. according to the described water wave glass compacting of claim 3 specific equipment, it is characterized in that: described roller is ceramic roller.
5. according to the described water wave glass compacting of claim 4 specific equipment, it is characterized in that: the installed in front of described pressure roller has air cooled tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014301 CN1666966A (en) | 2004-03-12 | 2004-03-12 | Process for pressing watermark glass and its special pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014301 CN1666966A (en) | 2004-03-12 | 2004-03-12 | Process for pressing watermark glass and its special pressing device |
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| Publication Number | Publication Date |
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| CN1666966A true CN1666966A (en) | 2005-09-14 |
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| CN 200410014301 Pending CN1666966A (en) | 2004-03-12 | 2004-03-12 | Process for pressing watermark glass and its special pressing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009117873A1 (en) * | 2008-03-28 | 2009-10-01 | 东莞万德电子制品有限公司 | Process for single-step glass sheet embossing and production |
| CN101948244A (en) * | 2010-09-27 | 2011-01-19 | 汪锡斌 | Inclined concave-convex roller press and granule kiln-feeding system with same |
| WO2012082709A1 (en) * | 2010-12-13 | 2012-06-21 | Cardinal Fg Company | System and method for producing patterned heat-strengthened glass |
| CN101467029B (en) * | 2006-06-27 | 2013-01-23 | 法孚斯坦因公司 | Installation for producing flat glass, comprising a stress measuring device, and method for operating a flat glass annealing kiln |
| CN107814477A (en) * | 2017-11-24 | 2018-03-20 | 廖仲明 | A kind of multi-functional hot-working glass production device |
-
2004
- 2004-03-12 CN CN 200410014301 patent/CN1666966A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467029B (en) * | 2006-06-27 | 2013-01-23 | 法孚斯坦因公司 | Installation for producing flat glass, comprising a stress measuring device, and method for operating a flat glass annealing kiln |
| WO2009117873A1 (en) * | 2008-03-28 | 2009-10-01 | 东莞万德电子制品有限公司 | Process for single-step glass sheet embossing and production |
| CN101948244A (en) * | 2010-09-27 | 2011-01-19 | 汪锡斌 | Inclined concave-convex roller press and granule kiln-feeding system with same |
| WO2012082709A1 (en) * | 2010-12-13 | 2012-06-21 | Cardinal Fg Company | System and method for producing patterned heat-strengthened glass |
| CN107814477A (en) * | 2017-11-24 | 2018-03-20 | 廖仲明 | A kind of multi-functional hot-working glass production device |
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