CN105314829A - Manufacturing method capable of reducing stress spots of toughened glass and toughened glass - Google Patents
Manufacturing method capable of reducing stress spots of toughened glass and toughened glass Download PDFInfo
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- CN105314829A CN105314829A CN201510018910.7A CN201510018910A CN105314829A CN 105314829 A CN105314829 A CN 105314829A CN 201510018910 A CN201510018910 A CN 201510018910A CN 105314829 A CN105314829 A CN 105314829A
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- toughened glass
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The invention is suitable for the technical field of toughened glass production, and discloses a manufacturing method capable of reducing stress spots of toughened glass and the toughened glass. The manufacturing method comprises the processes of material selecting and edge cutting, wherein a raw glass sheet is selected and cut; washing and grinding, wherein edge grinding and washing are performed on the raw glass sheet; heating processing, wherein the raw glass sheet obtained through washing and grinding is conveyed into a toughening furnace to be heated, the heating temperature is kept at 570 DEG C-700 DEG C, and heating is performed according to the thickness of the raw glass sheet and the heating time parameter of 60-120 s/mm; toughening processing, wherein the raw glass sheet obtained through heating processing is quickly output from the toughening furnace and then rapidly cooled to the room temperature. The toughened glass is obtained through the manufacturing method. According to the manufacturing method capable of reducing the stress spots of the toughened glass, the obvious stress spot defects of the toughened glass can be overcome, the stress spots are small, the flatness is good, the appearance of the toughened glass is significantly improved, and the requirement for the product quality is met.
Description
Technical field
The invention belongs to toughened glass production technical field, particularly relate to a kind of manufacture method and the toughened glass that reduce toughened glass stress pattern.
Background technology
In toughened glass production technical field, the existing design concept of toughened glass becomes more diversified, polytropy.The principle that general steel process parameter adopts higher temperature to heat glass, namely with than comparatively high temps (701-780 DEG C), short period of time heats, to enhance productivity like this, again can energy efficient, also can realize producing, but produce under the high temperature conditions at toughened glass, roller-way print is more obvious, edge effect (distortion) is obvious, especially on tempering wind-blown spot (stress pattern) and in tempering planeness (water ripples), the mass difference of glass is very large, naked eyes are visible stress pattern obviously, glass chamber observes the obvious torsional deformation of image outward, outdoor observation deformation of image is serious, thus generation light pollution, people is allowed to produce resentment, greatly limit to the practical application of toughened glass, client can not be met day by day to the demand of quality.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of manufacture method reducing toughened glass stress pattern, it can overcome the obvious defect of toughened glass stress pattern, stress pattern is little, planeness is good, significantly improves the outward appearance of toughened glass, meets the demand to quality product.
Technical scheme of the present invention is: a kind of manufacture method reducing toughened glass stress pattern, and described manufacture method comprises:
Selection trimming operation: choose original sheet glass, and according to production requirement, cutting process is carried out to described original sheet glass;
Wash grinder sequence: edging is carried out to described original sheet glass, and clean described original sheet glass;
Heating treatment step: be delivered in annealing furnace by the described original sheet glass obtained by washing grinder sequence and carry out heat treated, wherein Heating temperature remains on 570 ~ 700 DEG C; And according to the thickness of described original sheet glass, continue to heat according to parameter heat-up time of 60 ~ 120 seconds/millimeter;
Tempering treatment process: exported rapidly from annealing furnace by the described original sheet glass obtained by heating treatment step, and be cooled to normal temperature rapidly, wherein in the process of cooling, ensures that the air-out of glass air grid is even.
Particularly, described heating temperature range is 600 ~ 670 DEG C.
Preferably, described Heating temperature is 650 DEG C.
Particularly, described heat-up time, parameter area was 80 ~ 100 seconds/millimeter.
Preferably, described heat-up time, parameter was 90 seconds/millimeter.
Present invention also offers a kind of toughened glass, obtained by the manufacture method of above-mentioned minimizing toughened glass stress pattern.
A kind of manufacture method reducing toughened glass stress pattern provided by the invention, by selection trimming operation and wash grinder sequence, carries out processing preparation to original sheet glass early stage, ensure that the quality heating former of front glass.Simultaneously, in heating treatment step, by Heating temperature being set between 570 ~ 700 DEG C, and according to the thickness of original sheet glass, continue to heat according to parameter heat-up time of 60 ~ 120 seconds/millimeter, thus while ensure that production efficiency, original sheet glass is heated evenly, improve the quality of product.
The toughened glass produced by adopting the manufacture method of above-mentioned minimizing toughened glass stress pattern, the product edge effect obtained is slight, stress pattern visually sees and loses, bulk glass distortion is non-warping, light pollution is improved, significantly improve the outward appearance of toughened glass, meet the demand of client to quality product.
Accompanying drawing explanation
Fig. 1 is the schema of the manufacture method of the minimizing toughened glass stress pattern that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of manufacture method reducing toughened glass stress pattern that the embodiment of the present invention provides, be intended to solve the toughened glass obtained by traditional tempered glass producing method and there is the defects such as stress pattern is obvious, poor flatness, thus cause after a procedure, observe deformation of image outdoor serious, affect visual effect, produce serious light pollution, its manufacture method comprises:
Selection trimming operation: choose original sheet glass, and according to production requirement, cutting process is carried out to original sheet glass.Choosing in the middle of the process of original sheet glass, noting color, thickness, date manufactured, the size of original sheet glass and pull limit effect etc.
Wash grinder sequence: edging is carried out to original sheet glass, and cleans original sheet glass.When washing mill process, the situations such as attention scuffing, watermark, chip, quick-fried angle, size deviation and edging are bad, to ensure that original sheet glass carries out the quality product before heat treated, improve good article rate.
Heating treatment step: the original sheet glass obtained by washing grinder sequence is delivered in annealing furnace and carries out heat treated, wherein the Heating temperature of annealing furnace is remained in the scope of 570 ~ 700 DEG C; And according to the thickness of heated original sheet glass, continue to heat according to parameter heat-up time of 60 ~ 120 seconds/millimeter, guarantee that original sheet glass can be heated evenly, bulk glass distortion is non-warping, ensure that the planeness of original sheet glass, during use, light pollution is improved.
Tempering treatment process: the original sheet glass obtained by heating treatment step is exported rapidly from annealing furnace, and be cooled to normal temperature rapidly, wherein in the process of cooling, ensure that the air-out of glass air grid is even, production is made to obtain toughened glass stress pattern little, be invisible to the naked eye stress pattern, tempering (half tempered) glassy product, can significantly improve toughened glass outward appearance.
At toughened glass production field, tempering (half tempered) glass is that annealed glass is blown in glass surface unification after being heated to glass softening point, makes glass cool rapidly the principle of making.For the toughened glass that there is stress, it also has the optical property of uniaxial crystal, all uniaxial crystals can be divided into both positive and negative, light reduces to be called positive crystal in the speed through extra ordinary ray during glass, light is called negative crystal in the speed increase through extra ordinary ray during glass, there is the feature of negative sense uniaxial crystal by the glass of even stress at polarized light microscopy Microscopic observation, by the glass of even tension stress, then have the feature of forward uniaxial crystal.
And in the toughening process of glass, the target that we lay siege to obtains rational stress distribution on the thickness direction of glass, namely surface is stress, and centre is tension stress.But in fact, there is the phenomenon of stress distribution inequality on the whole surface in the stress on toughened glass surface, thisly unevenly the party's double refraction upwards will be caused, and birefringent existence, make again to incide the ordinary beam of visible ray in the middle of glass, extra ordinary ray is returning glass surface through second surperficial reflection, form path difference with incident light, form composite wave.We know, as long as phase differential is not integer wavelength, neither 1/2nd odd-multiple, light wave amplitude will change, and produces and disappears mutually or strengthen, forms the speckle that light and shade is crossing, namely our stress pattern of seeing.After stress pattern is formed, we with the naked eye can observe on glass and have light and dark striped (presenting colored strip), more obvious after glass superposition, it is the inherent defect of toughened glass, glass chamber observes the obvious torsional deformation of image outward, the outward appearance of serious image cladding glass, visually produce uncomfortable image sense, it is attractive in appearance that image is built.
The manufacture method of the minimizing toughened glass stress pattern that the invention process provides, washes grinder sequence by selection trimming, carries out processing preparation early stage to original sheet glass, ensure that the quality of heating former of front glass.Simultaneously, in heating treatment step, according to production requirement, by heating and temperature control between 570 ~ 700 DEG C, and according to the thickness of original sheet glass, continue to heat to original sheet glass according to parameter heat-up time of 60 ~ 120 seconds/millimeter, mainly to regulate tempering temperature to control glass flatness (waveform and arc) and image and stress pattern problem, thus while ensure that production efficiency, original sheet glass is heated evenly, bulk glass distortion is non-warping, ensure that the planeness of original sheet glass, during use, light pollution is improved, improve the quality of product.Can be used for the processing of the compound products such as monolithic, interlayer, hollow, plated film, more meet customer need.
Particularly, according to the condition such as kind, thickness of former of different glass, the heating temperature range of annealing furnace is controlled at 600 ~ 670 DEG C.And in the present embodiment, Heating temperature is 650 DEG C, original sheet glass heating efficiency is high.
Particularly, according to the condition such as kind, thickness of original sheet glass, parameter area heat-up time is set as 80 ~ 100 seconds/millimeter.And in the present embodiment, be 90 seconds/millimeter by parameter setting heat-up time, thus ensure that original sheet glass can be heated evenly unanimously, bulk glass is non-warping, ensure that the planeness of original sheet glass.
The embodiment of the present invention additionally provides a kind of toughened glass, is obtained by the manufacture method of above-mentioned minimizing toughened glass stress pattern.By the toughened glass adopting above-mentioned manufacture method to produce, the outdoor observation image of toughened glass that this temperature, time produce is indeformable, planeness is better, and in outdoor observation, the distortion of edge effect is slight, water ripples with the naked eye become miter angle can not observe with glass, observe overall image effect indeformable, stress pattern visually sees and loses, thus avoids the generation of light pollution, reach a kind of visual effect attractive in appearance, meet client day by day to the expectation that tempered glass quality increases
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. reduce a manufacture method for toughened glass stress pattern, it is characterized in that, described manufacture method comprises:
Selection trimming operation: choose original sheet glass, and according to production requirement, cutting process is carried out to described original sheet glass;
Wash grinder sequence: edging is carried out to described original sheet glass, and clean described original sheet glass;
Heating treatment step: be delivered in annealing furnace by the described original sheet glass obtained by washing grinder sequence and carry out heat treated, wherein Heating temperature remains on 570 ~ 700 DEG C; And according to the thickness of described original sheet glass, continue to heat according to parameter heat-up time of 60 ~ 120 seconds/millimeter;
Tempering treatment process: exported rapidly from annealing furnace by the described original sheet glass obtained by heating treatment step, and be cooled to normal temperature rapidly, wherein in the process of cooling, ensures that the air-out of glass air grid is even.
2. the manufacture method reducing toughened glass stress pattern as claimed in claim 1, it is characterized in that, described heating temperature range is 600 ~ 670 DEG C.
3. the manufacture method reducing toughened glass stress pattern as claimed in claim 1, it is characterized in that, described Heating temperature is 650 DEG C.
4. the as claimed in claim 1 manufacture method reducing toughened glass stress pattern, is characterized in that, described heat-up time, parameter area was 80 ~ 100 seconds/millimeter.
5. the as claimed in claim 1 manufacture method reducing toughened glass stress pattern, is characterized in that, described heat-up time, parameter was 90 seconds/millimeter.
6. a toughened glass, is characterized in that, is obtained by the manufacture method of the minimizing toughened glass stress pattern in claim 1 to 5 described in any one.
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| CN201510018910.7A CN105314829B (en) | 2015-01-14 | 2015-01-14 | Reduce the manufacturing method and tempered glass of tempered glass stress pattern |
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| CN105314829A true CN105314829A (en) | 2016-02-10 |
| CN105314829B CN105314829B (en) | 2018-06-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526561A (en) * | 2019-08-27 | 2019-12-03 | 宿州市天艺钢化玻璃有限公司 | A kind of production technology of tempered glass |
| CN114685038A (en) * | 2022-04-18 | 2022-07-01 | 江门馗达特玻科技有限公司 | Preparation method of 5mm toughened mirror |
| CN114702237A (en) * | 2022-04-18 | 2022-07-05 | 江门馗达特玻科技有限公司 | Preparation method of 4mm toughened mirror |
| CN114716140A (en) * | 2022-04-18 | 2022-07-08 | 江门馗达特玻科技有限公司 | Preparation method of 2.8-3.2mm toughened lens |
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| CN1693246A (en) * | 2005-02-21 | 2005-11-09 | 何志强 | Method for mfg. high strengthening environmental protection fireproof glass |
| CN102219365A (en) * | 2011-04-16 | 2011-10-19 | 陈永乐 | Bending glass tempering and blast cooling device and cooling method thereof |
| CN102659305A (en) * | 2012-04-18 | 2012-09-12 | 无锡海达安全玻璃有限公司 | Novel semi-tempering process for back plate glass of thin-film solar cells |
| CN103936271A (en) * | 2013-01-23 | 2014-07-23 | 湖北琅美玻璃有限公司 | Toughening treatment method for punched glass |
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2015
- 2015-01-14 CN CN201510018910.7A patent/CN105314829B/en active Active
Patent Citations (4)
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| CN1693246A (en) * | 2005-02-21 | 2005-11-09 | 何志强 | Method for mfg. high strengthening environmental protection fireproof glass |
| CN102219365A (en) * | 2011-04-16 | 2011-10-19 | 陈永乐 | Bending glass tempering and blast cooling device and cooling method thereof |
| CN102659305A (en) * | 2012-04-18 | 2012-09-12 | 无锡海达安全玻璃有限公司 | Novel semi-tempering process for back plate glass of thin-film solar cells |
| CN103936271A (en) * | 2013-01-23 | 2014-07-23 | 湖北琅美玻璃有限公司 | Toughening treatment method for punched glass |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526561A (en) * | 2019-08-27 | 2019-12-03 | 宿州市天艺钢化玻璃有限公司 | A kind of production technology of tempered glass |
| CN114685038A (en) * | 2022-04-18 | 2022-07-01 | 江门馗达特玻科技有限公司 | Preparation method of 5mm toughened mirror |
| CN114702237A (en) * | 2022-04-18 | 2022-07-05 | 江门馗达特玻科技有限公司 | Preparation method of 4mm toughened mirror |
| CN114716140A (en) * | 2022-04-18 | 2022-07-08 | 江门馗达特玻科技有限公司 | Preparation method of 2.8-3.2mm toughened lens |
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| CN105314829B (en) | 2018-06-26 |
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