CN102205517A - Method for thinning glass - Google Patents
Method for thinning glass Download PDFInfo
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- CN102205517A CN102205517A CN2010101411648A CN201010141164A CN102205517A CN 102205517 A CN102205517 A CN 102205517A CN 2010101411648 A CN2010101411648 A CN 2010101411648A CN 201010141164 A CN201010141164 A CN 201010141164A CN 102205517 A CN102205517 A CN 102205517A
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- glass
- emery wheel
- grinding
- thining method
- clout
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Abstract
The invention provides a method for thinning glass. The glass comprises a product part and an excess stock part. The method comprises the following steps: fixing the glass and exposing the excess stock part of the glass, and then grinding the excess stock part by contacting a rotating grinding wheel with the surface of the excess stock part until the excess stock part is completely removed, wherein the grinding step is as follows: firstly roughly grinding by utilizing a rough-grained grinding wheel and then finely grinding by utilizing a fine-grained grinding wheel. According to the method for thinning the glass provided by the invention, the major excess stock part is removed by utilizing a rough grinding process, the glass is finely ground until the glass has a required thickness and the surface of the ground glass is almost smooth, the production efficiency is high, and the quality of the thinned glass is also higher.
Description
Technical field
The invention belongs to the glass thinning technical field, relate in particular to a kind of thining method of glass.
Background technology
The glass general thickness that is used in fields such as flat-panel screens is 0.5-2.0mm even thinner, and compression moulding glass is common glass machinery manufacturing process.In the glassware compacting is produced, can on glass substrate, produce the technology flash, for realizing the dimensional requirement of product, need remove with suitable operation flash.Flash after the compacting generally is created on the thickness direction, so need carry out the attenuate operation to it.The compacting parison bigger thickness is generally arranged, general thickness is about 8-15mm, thus for thickness at 2mm or thinner glassware, have more thickness surplus.The glass thinning method of prior art mainly is to adopt physics or chemical method that glass substrate is removed one deck on thickness direction.Chemical method promptly adopts the method for chemical etching, and it can make glass substrate can reach that thickness is even, surface effect is good.But chemical etching cost height and attenuate efficient are low, probably can only subtract 0.2mm, and can not adapt to the requirement of thicker attenuate amount in general 1 hour.Physical method promptly is mechanical lapping, the process of glass grinding, mainly be mill and glass relative motion, in the process of grinding, can between mill and glass, add flowable abrasive material simultaneously, rely on abrasive material to grind, still, if adopt the method for common grinding to reduce these surpluses, then need long man-hour, production efficiency is also very low.
Summary of the invention
The present invention provides the thining method of the higher glass of a kind of production efficiency for solving the low problem technical problem of existing glass thinning technology production efficiency.
The technical solution used in the present invention is as follows:
A kind of thining method of glass, this glass comprise product position and clout position, and described thining method may further comprise the steps:
Glass is fixed, its clout position is exposed;
The emery wheel of rotation is contacted with surface, clout position, the clout position is ground to fully removes;
The step of described grinding comprises: adopt the emery wheel than coarseness to carry out rough lapping earlier, adopt more fine-grained emery wheel to carry out fine lapping then.
Further:
The transition that the step of grinding also is included between rough lapping and the fine lapping step is ground.
The granularity of the emery wheel of described rough lapping is 80-120#, and the granularity of the emery wheel that described transition is ground is 160-240#, and the granularity of the emery wheel of described fine lapping is 280-320#.
In grinding process, also comprise and make the glass residual material position constantly to the close step that makes its surface contact of emery wheel.
Continue the step to wheel face spray cooling fluid when also being included in grinding, the main component of described cooling fluid is an anion surfactant.
Described emery wheel is a Carborundum wheel, and the material of its emery wheel abrasive material is a hard crystal carborundum.
The described method that glass is fixing is fastened on glass product in the anchor clamps by the vacuum suction mode for the anchor clamps with host cavity are put at the glass product position, and the material of described anchor clamps is bakelite or polyformaldehyde plastic cement.
The rotary speed of described emery wheel is 2500-3200 rev/min.
In described grinding step is carried out, comprise further described glass is horizontally rotated that direction of rotation is opposite with emery wheel, its rotating speed is 0-60 rev/min.
According to the thining method of glass provided by the invention, remove most clout part by rough lapping, be machined to the thickness of requirement by fine lapping again and make the surface near polishing, production efficiency is fast, and the glass quality behind the attenuate is also higher.
Description of drawings
Fig. 1 is the schematic diagram of the thining method of the glass that provides of the embodiment of the invention.
The specific embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, according to the thining method of a kind of glass 1 provided by the invention, this glass comprises product position 11 and clout position 12, comprises step:
Glass 1 is fixing, its clout position is exposed;
The emery wheel 3 of rotation is ground to removal fully with clout position 12 surperficial contacts with the clout position;
The step of described grinding is: adopt the emery wheel than coarseness to carry out rough lapping earlier, adopt more fine-grained emery wheel to carry out fine lapping then.
According to the embodiment of the invention, the described method that glass 1 is fixed is for to put into the anchor clamps 2 with host cavity 21 with glass product position 11, the material of described anchor clamps is preferably bakelite, and its main component is highdensity phenolic resins, and itself and other the material of making is mixed and made into bakelite.Its maximum characteristics are exactly to have higher mechanical strength, good insulation performance, and are heat-resisting, corrosion-resistant.Material of the same type also can,, be commonly called as " Bai Saigang " as acetal plastic.
Further,, the product position can be exposed at outside the anchor clamps host cavity a little, generally stay 0.1 millimeter for the ease of processing, like this, can be fully with 12 excisions of clout position, emery wheel 3 can not contact with anchor clamps yet and cause damage.Can glass product be fastened in the anchor clamps 2 by the vacuum suction mode, concrete, be provided with the aperture of vacuum pumping in the bottom of host cavity 21, the diameter of described aperture is decided according to the size of glass, for the glass that is applied to electronic product window, the aperture that generally can select aperture for use is the 1-3.5 millimeter, and its vacuum pressure is 0.3-0.8mpa.
Described emery wheel is meant that there is the circular bonded abrasive tool of through hole in the central authorities made from abrasive material and bond resin etc., and emery wheel is usually working under the rotation at a high speed, in order to product is carried out grinding.Granularity refers to the size of abrasive grain.Abrasive particle is classified with screening method, and its grain size number is represented with the eyelet number in the inchage on the screen cloth.For example the abrasive particle of 60# granularity illustrates that abrasive particle can have the screen cloth of 60 eyelets by per inch length.Described emery wheel is a Carborundum wheel, and the material of its emery wheel abrasive material is a hard crystal carborundum.Crystal carborundum has high rigidity, and the institutional framework densification, meets processing conditions.
The rotary speed of described emery wheel is 2500-3200 rev/min.Rotating speed is low excessively, and glass easily produces and bursts apart; Rotating speed is too high, and cutting force is too little, reduces production efficiency.
Described " using emery wheel to carry out rough lapping " than coarseness, be meant that the wheel grinding with the 80-120# granularity falls most clout part, the clout that general rough lapping grinds off partly accounts for the 75%-80% of its total grinding thickness, for the clout part of 14 millimeters thickness, rough lapping will grind off the 10.5-11.2 millimeter.Rough lapping has very high grinding efficiency.
Described fine lapping is that using than small grain size is emery wheel with glass processing to the thickness that requires and make glass surface reach user demand, and in general, the granularity of the emery wheel of described fine lapping is 280-320#.The surface roughness of product is Ra0.05-0.4 after the fine lapping.
Preferred according to the present invention, the step of described grinding also comprises the transition grinding between rough lapping and fine lapping.It mainly is to remove glass part that rough lapping produces defective such as burst apart that described transition is ground.The granularity of the emery wheel that described transition is ground is 160-240#, and the clout that general transition grinds off partly accounts for the 15%-20% of its total grinding thickness.
The grinding direction of described emery wheel and glass can be vertical in opposite directions, but also level is in opposite directions.
Along with the carrying out of grinding, glass can be more and more thinner, so, also comprise making the glass residual material position constantly to the close step that makes its surface contact of emery wheel.Concrete, with the grinding direction of glass vertical in opposite directions for emery wheel, emery wheel can be movably connected on one, driving emery wheel vertical direction on axle by cylinder moves, the method that described cylinder drive emery wheel moves is that this area is easily known, repeats no more, for example, the input pressure of described cylinder is 0.2-0.8mpa, and cylinder adopts solenoid control.Along with the continuous propelling of cylinder rod, emery wheel is finished the grinding of set thickness gradually to workpiece, and grinding thickness is controlled by micrometer or other calibration instrument of the same type on cylinder next door.
Preferred according to the present invention, continue step when also being included in grinding to wheel face spray cooling fluid, the main component of described cooling fluid is an anion surfactant.Performances such as that anion surfactant has is antirust, lubricated, sterilization, anti-hard water; strong electrostatic attraction by anion and work metal surface-active ion; form the shielding protection film; make the metal surface thoroughly isolated with aerial oxygen, moisture and other corrosive mediums; thereby reach antirust purpose, reduce the wearing and tearing of cutter and workpiece simultaneously.
Preferred according to the present invention, described glass also has one and horizontally rotates motion, and its direction of rotation is opposite with emery wheel, and its rotating speed is 0-60 rev/min.The glass rotation prevents the one-way error in order to guarantee the uniformity of product thickness.
The present invention will be further described below by specific embodiment.
Embodiment 1: with product position thickness is 2 millimeters, clout position thickness is that 12 millimeters glass is fastened in the anchor clamps, selects for use the emery wheel of 100# that grinding is carried out at the clout position, when being ground to clout position thickness and being 2.9 millimeters, suspend grinding, this time the used time of grinding is 42 seconds; The emery wheel of using 200# instead carries out grinding to the clout position, when being ground to clout position thickness and being 2.5 millimeters, suspends grinding, and this time used time of grinding is 13 seconds; The emery wheel of using 300# then instead carries out grinding to the clout position, and thickness of glass is 2 millimeters after the grinding, and this time the used time of grinding is 8 seconds.The B6-2 cooling fluid spray of selecting prosperous prosperous imperial producer in the process of grinding for use is at wheel face, and grinding wheel speed is 3000 rev/mins.The surface roughness of final products is Ra0.05, can be used as electronic product window.
Embodiment 2: with product position thickness is 5 millimeters, clout position thickness is that 12 millimeters glass is fastened in the anchor clamps, selects for use the emery wheel of 100# that grinding is carried out at the clout position, when being ground to clout position thickness and being 5.5 millimeters, suspend grinding, this time the used time of grinding is 25 seconds; The emery wheel of using 300# then instead carries out grinding to the clout position, and thickness of glass is 5 millimeters after the grinding, and this time the used time of grinding is 15 seconds.The B6-2 cooling fluid spray of selecting prosperous prosperous imperial producer in the process of grinding for use is at wheel face, and grinding wheel speed is 2500 rev/mins.The surface roughness of final products is Ra0.2, can be used as family expenses art etc.
Embodiment 3: with product position thickness is 25 millimeters, clout position thickness is that 30 millimeters glass is fastened in the anchor clamps, selects for use the emery wheel of 120# that grinding is carried out at the clout position, when being ground to clout position thickness and being 26.3 millimeters, suspend grinding, this time the used time of grinding is 22 seconds; The emery wheel of using 180# instead carries out grinding to the clout position, when being ground to clout position thickness and being 25.5 millimeters, suspends grinding, and this time used time of grinding is 15 seconds; The emery wheel of using 280# then instead carries out grinding to the clout position, and thickness of glass is 25 millimeters after the grinding, and this time the used time of grinding is 10 seconds.The B6-2 cooling fluid spray of selecting prosperous prosperous imperial producer in the process of grinding for use is at wheel face, and grinding wheel speed is 3000 rev/mins.The surface roughness of final products is Ra0.1, can be used as lens of car light.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the thining method of a glass, this glass comprises product position and clout position, it is characterized in that, described thining method may further comprise the steps:
Glass is fixed, its clout position is exposed;
The emery wheel of rotation is contacted with surface, clout position, the clout position is ground to fully removes;
The step of described grinding comprises: adopt the emery wheel than coarseness to carry out rough lapping earlier, adopt more fine-grained emery wheel to carry out fine lapping then.
2. the thining method of glass as claimed in claim 1 is characterized in that, the transition that the step of grinding also is included between rough lapping and the fine lapping step is ground.
3. the thining method of glass as claimed in claim 2 is characterized in that, the granularity of the emery wheel of described rough lapping is 80-120#, and the granularity of the emery wheel that described transition is ground is 160-240#, and the granularity of the emery wheel of described fine lapping is 280-320#.
4. the thining method of glass as claimed in claim 1 or 2 is characterized in that, also comprises making the glass residual material position constantly to the close step that makes its surface contact of emery wheel in grinding process.
5. the thining method of glass as claimed in claim 1 or 2 is characterized in that, continues the step to wheel face spray cooling fluid when also being included in grinding, and the main component of described cooling fluid is an anion surfactant.
6. the thining method of glass as claimed in claim 1 or 2 is characterized in that, described emery wheel is a Carborundum wheel, and the material of its emery wheel abrasive material is a hard crystal carborundum.
7. the thining method of glass as claimed in claim 1 or 2, it is characterized in that, the described method that glass is fixing is for to put into the anchor clamps with host cavity with the glass product position, by the vacuum suction mode glass product is fastened in the anchor clamps, the material of described anchor clamps is bakelite or polyformaldehyde plastic cement.
8. the thining method of glass as claimed in claim 1 or 2 is characterized in that, the rotary speed of described emery wheel is 2500-3200 rev/min.
9. the thining method of glass as claimed in claim 1 or 2 is characterized in that, in described grinding step is carried out, comprises further described glass is horizontally rotated that direction of rotation is opposite with emery wheel, and its rotating speed is 0-60 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101411648A CN102205517A (en) | 2010-03-31 | 2010-03-31 | Method for thinning glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101411648A CN102205517A (en) | 2010-03-31 | 2010-03-31 | Method for thinning glass |
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| CN102205517A true CN102205517A (en) | 2011-10-05 |
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| CN2010101411648A Pending CN102205517A (en) | 2010-03-31 | 2010-03-31 | Method for thinning glass |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581762A (en) * | 2012-04-01 | 2012-07-18 | 北京华进创威电子有限公司 | Crystal processing surface grinding platform |
| CN103213055A (en) * | 2013-04-22 | 2013-07-24 | 常熟市研明电子元器件厂 | Grinding method of magnetic substrate |
| CN104325365A (en) * | 2014-09-01 | 2015-02-04 | 上海华力微电子有限公司 | Method for quickly grinding electrostatic chuck |
| CN104341097A (en) * | 2013-07-26 | 2015-02-11 | 比亚迪股份有限公司 | Groove type glass processing apparatus and method |
| CN105403441A (en) * | 2015-11-02 | 2016-03-16 | 广东威创视讯科技股份有限公司 | LED (Light Emitting Diode) failure analysis method and thinning method for packaging resin during process of LED failure analysis method |
| CN104325365B (en) * | 2014-09-01 | 2017-01-04 | 上海华力微电子有限公司 | A kind of method of quick polishing electrostatic chuck |
| CN111300161A (en) * | 2020-02-26 | 2020-06-19 | 上海东竞自动化系统有限公司 | Method and apparatus for repairing surface scratches |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581762A (en) * | 2012-04-01 | 2012-07-18 | 北京华进创威电子有限公司 | Crystal processing surface grinding platform |
| CN103213055A (en) * | 2013-04-22 | 2013-07-24 | 常熟市研明电子元器件厂 | Grinding method of magnetic substrate |
| CN104341097A (en) * | 2013-07-26 | 2015-02-11 | 比亚迪股份有限公司 | Groove type glass processing apparatus and method |
| CN104325365A (en) * | 2014-09-01 | 2015-02-04 | 上海华力微电子有限公司 | Method for quickly grinding electrostatic chuck |
| CN104325365B (en) * | 2014-09-01 | 2017-01-04 | 上海华力微电子有限公司 | A kind of method of quick polishing electrostatic chuck |
| CN105403441A (en) * | 2015-11-02 | 2016-03-16 | 广东威创视讯科技股份有限公司 | LED (Light Emitting Diode) failure analysis method and thinning method for packaging resin during process of LED failure analysis method |
| CN111300161A (en) * | 2020-02-26 | 2020-06-19 | 上海东竞自动化系统有限公司 | Method and apparatus for repairing surface scratches |
| CN111300161B (en) * | 2020-02-26 | 2022-02-01 | 上海东竞自动化系统有限公司 | Method and apparatus for repairing surface scratches |
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Application publication date: 20111005 |