CN102351408A - Method for forming boss on glass matrix - Google Patents
Method for forming boss on glass matrix Download PDFInfo
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- CN102351408A CN102351408A CN2011101880842A CN201110188084A CN102351408A CN 102351408 A CN102351408 A CN 102351408A CN 2011101880842 A CN2011101880842 A CN 2011101880842A CN 201110188084 A CN201110188084 A CN 201110188084A CN 102351408 A CN102351408 A CN 102351408A
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- boss
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- glass basis
- light beam
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Abstract
The invention provides a method for forming a boss on a glass matrix. According to the method, the boss is tightly connected with and formed on the glass matrix through laser cladding of a meltable moulding material by the use of light beams. The method provided by the invention is simple and reliable, can be used to produce the boss with good consistency on the glass matrix, and is suitable for large scale production.
Description
Technical field
The present invention relates to form on a kind of glass basis the method for boss.Be through molten meltable formed material, formation and the compact boss of glass basis on glass basis of applying of light beam light specifically.The present invention can be used for the formation of point of suppon in the for example vacuum glass production.
Background technology
Occasion in that needs carry out the slit hermetic seal often need keep slit thickness at slit internal layout POS.Form boss at glass surface, method commonly used lays the active boss exactly, makes it keep the fixed position through glass surface pressurization oppression boss then.Also having a kind of mode is exactly to lay the position coating low melting glass powder of boss at glass surface, and the whole then fusing point that is heated to low melting glass fuses itself and glass basis, forms boss.It is the manufacturing of vacuum glass comparatively widely that the glass surface boss is used.Typical document is patent CN1738777A, and it is mentioned and adopts the low melting glass slurry evenly to lay the slurry point with screen printing mode or divider mode, makes the glass paste fusing through the mode to the whole heating of glass basis then, forms the fixed boss structure.Patent CN200720159455.3 mentions through rolling method and forms boss.
Other the relevant documents and materials then all relevant boss of major part lay.
Through smearing slurry, make the slurry fusion form the method technology relative complex of boss through the integral body heating then, energy consumption is higher, simultaneously the heat of glass basis is caused easily the annealing of substrate deformation and chilled glass, and whole heating is consuming time longer.Vacuum glass is had relatively high expectations to the glass planeness, and the mode that forms boss through rolling mode forms boss, and technology is more complicated, and planeness cannot say for sure to demonstrate,prove.
Summary of the invention
In order to overcome above technological deficiency, that improves the glass boss lays efficient and productivity, reduces the deformation of glass basis.The present invention provides a kind of formation method of glass basis convex platform, and this method is employed on the glass basis and directly forms boss with the molten deposited formed material of light beam light.This method is simple and reliable, is fit to large-scale production.
For achieving the above object, the present invention realizes through following technical scheme:
A kind of formation method of glass basis convex platform: on glass basis,, comprise following operation with the molten method of applying formed material formation boss of light beam light:
On glass basis, need the operation of the deposited moulding material of zone shop one deck of formation boss;
With light beam light in a certain way irradiation need form the molten formed material that applies of lug boss position, what make the irradiation position moltenly applies all or part of fusion of formed material, and with glass basis bonded operation.
The said molten formed material that applies has bigger specific absorption to light beam light in the wavelength region may of said light beam light.
The preferred above-mentioned molten molding mass that applies comprises frit, metal charge, alloy material, perhaps their combination.
Above material mainly is made up of powder, requires to have thinner granularity.The purpose of combination is the performance that improves absorption luminous energy, reduces fusing point simultaneously, reduces thermal expansivity.
In molding mass, add material, can improve the molten effect of applying of irradiation the stronger absorption of fusion light beam light.
The preferred above-mentioned molten molding mass that applies comprises powder, thickener, slurry.
Powder by frit, metal charge, alloy material is formed.Powder adds the tackiness agent of different ratios and forms thickener and slurry.Adhesive ingredients will can decompose fully before deposited.
Preferred above-mentioned light beam light comprises laser, xenon lamp.
The characteristics of laser irradiation are that wavelength is single, good directionality.Alternative optical maser wavelength is also more relatively simultaneously.Xenon lamp has good perviousness to soda glass, and some material has stronger absorption to it simultaneously.
Preferred above-mentioned light beam light irradiation comprise by multiple light beam light form combination irradiation.
Can adopt YAG laser to be carried out to the fusion of type material in the production, adopt CO
2Laser also uses bigger hot spot that the glass of lug boss position is carried out boosting, forms the combination irradiation of two kinds of light beam light.Also can adopt the combination irradiation of multiple light beam light.
The resistance to tension of glass a little less than, the molten characteristics of applying of light beam light are that temperature variation is very fast, are easy to cause the crackle of glass basis.Adopt the combination irradiation energy to reduce the thermograde of glass surface, reduce crackle.
Preferred light beam photoirradiation adopts the irradiation that changes the exposure beam focal position.
The zoom radiating can reduce the thermograde of glass surface, and the temperature variation in the time of also slowing down molten material cools simultaneously prevents the generation of glass basis crackle.
Said light beam light irradiation progressively reduces irradiation power until finishing irradiation before irradiation finishes.
Can make the speed of cooling of melting material obtain certain control like this, prevent to cool off and too fastly cause glass basis surface to produce big stress and crack.
Preferred light beam light is before the molten deposited formed material of irradiation, and the heating glass matrix is to the temperature of regulation.
Can reduce glass basis and the thermograde of deposited moulding material in deposited process like this, help to remove the gas of glass surface simultaneously.
More preferably said specified temperature is 150 ℃-300 ℃.
The present invention provides a kind of method that on glass basis, forms boss, and this method is employed on the glass basis and forms the boss of combining closely with glass basis with the molten deposited molding mass of light beam light.This method is simple and reliable, can the good boss of conformity of production, be fit to large-scale production.
Description of drawings
Fig. 1 is the synoptic diagram of the hot glass basis of the superimposed local heating of light beam light.
Fig. 2 changes the position view of focal length with respect to the melt molding material through the mode that moves.
Fig. 3 is the position view that mode that the scioptics group changes the light beam light focal length changes focus.
Fig. 4 is that (molten deposited formed material is a low melting glass to single boss forming process, and light beam light is CO
2Laser).
Among the figure: the molten light beam that applies of L1., L2. boosting light beam 1, L3. boosting light beam 2,1. glass basis 2. melts and applies formed material, 3. boss, 4. boosting zone a, 5. boosting zone b, 6. glass spheres.
Embodiment
The invention is not restricted to disclosed specific descriptions, term used herein only is for specific description needs, is not restrictive.
Providing following for description of the invention, is to disclose content of the present invention as present known embodiments.Those skilled in the relevant art can know and understand and can make many variations and combination to various aspects of the present invention, still can obtain useful result of the present invention simultaneously.Providing following describes as the explanation of the principle of the invention is not construed as limiting the invention.
The melt molding material:
From forming frit, metal charge, alloy material, perhaps their combination can become and is fused into type material, and major function is to absorb pairing light beam light, and the coefficient of expansion will be complementary with glass basis;
Say powder, thickener, slurry from form, perhaps their combination can be as being fused into type material, and major function is to make things convenient for lay and fusion easily.Wherein the application of powder is more convenient more extensive;
Select glass powder with low melting point as the melt molding material, the light that has some wavelength has stronger absorption.In the low-melting glass powder, add adhesive ingredients, make thickener and slurry and also can play same effect, just the mode of lay different and deposited before need make the adhesive ingredients decomposition in slurry or the paste layers by higher temperature or other modes;
The powdered alloy of employing Fe, Ni, Co or simple substance powdered mixture are as the melt molding material, and the light beam light of some wavelength has stronger absorption to it.In simple substance or alloy powder, add adhesive ingredients, make thickener and slurry and also can play same effect, just the mode of lay different and deposited before need make the adhesive ingredients decomposition in slurry or the paste layers by higher temperature or other modes.Because easy oxidation under the metallic substance high temperature is prone to cause fusion bad, apply simultaneously so need under the shielding gas protection, to melt;
Adopt alloy or metal simple-substance powder and low melting glass powder to mix mutually and form new melt molding material, the light that has some wavelength has stronger absorption.Simple substance or alloy powder are added adhesive ingredients, make thickener and slurry and also can play same effect, just the mode of lay is different and depositedly precedingly need make the adhesive ingredients decomposition in slurry or the paste layers by higher temperature or other modes;
Adopt glass powder as the melt molding material, adding has the strong material that absorbs to certain wavelength light.Glass powder and light absorbing mixtures of material are added adhesive ingredients make thickener with slurry also can play same effect, just the mode of lay is different and depositedly precedingly need make the adhesive ingredients decomposition in slurry or the paste layers by higher temperature or other modes;
Mix some in the melt molding material to the used molten material that light beam light has stronger absorption that applies, can improve the molten effect of applying of irradiation.
The lay of melt molding material:
Mainly come lay according to different form characteristics.Powder can directly drain to the boss placement location, and control thickness; Also can adopt dynamic dusting device to dust; Slurry and thickener can directly be attached on the glass basis through the mode of silk screen printing; Slurry can be placed through the mode of " some glue "; Thickener can be made solid shape and place, and waits and places like the unified pie of thickness, band shape.
The light beam light of heating and melting formed material:
Damage to glass basis is as far as possible little, and the melt molding material has higher specific absorption to it.
The prevention of surface crack:
The key that realizes deposited boss on the glass basis is the thermograde that reduces glass surface and deposited molding mass in the deposited process, the cooling rate of slowing down boss, and these can reduce the generation of face crack;
Under the less situation of boss, like deposited diameter 0.1 millimeter, can adopt small-power light beam light irradiation, select low-melting deposited moulding material, certain deposited time is set, can not cause the crackle of glass basis in the short time;
Can not satisfy under the situation that glass basis do not crack at coating material or glass basis.Just need to adopt the proper process mode to prevent the generation of surface crack:
1, whole heating glass matrix
Can select infrared light integral radiation or warm air beating for use.Preferred 150 ℃-300 ℃ of temperature;
2, adopt the superimposed local boosting glass basis of light beam light
Glass basis will have the certain absorption rate to the light beam light of selecting, the control power density;
As shown in Figure 1.With the bigger regional b (5) of boosting light beam 1 (L2) heating, with the zonule a (4) among boosting light beam 2 (L3) the irradiation zone b (5), molten lug boss position of applying moulding is in the irradiation zone a (4) of boosting light beam 1 (L2).Also can adopt multiple light beams light to come boosting;
3, the focal length that changes irradiation fusion light beam is realized local assistant heating and deposited
Employing all has absorbefacient light beam to glass basis and melt molding material, selects suitable focal length laser lens for use.Light beam is from the incident of melt molding material to glass basis direction.Earlier use positive out of focus, with larger area irradiation hot spot heating glass matrix and melt molding material, matrix has after certain intensification by the time, shortens the distance of focus and glass basis, makes along among the melt molding material.After boss forms, change the focal position, the irradiation light intensity in boss and peripheral cell territory is progressively weakened.The distance that changes focus and glass basis can change the position (as shown in Figure 2) of focal length with respect to the melt molding material through mobile mode, and the mode that also can the scioptics group changes the light beam light focal length changes the position (as shown in Figure 3) of focus;
4, the molten deposited light beam of irradiation progressively reduces the molten irradiation power that applies light beam and melts deposited until finishing irradiation before irradiation finishes
Can realize through the irradiation frequency of direct adjustment continuous irradiation light beam light intensity or pulsed light beam light;
5, prevent the generation of crackle through Combination application with upper type.
The fusion protective atmosphere:
Because the metal or alloy surface is easy to oxidation under the high temperature, causes lack of fusion, the gas that needs protection when therefore containing the melt molding material melt molding of metal or alloy forms protective atmosphere.Can adopt rare gas element as the fusion shielding gas.
Producing light beam light upward commonly used at present has:
CO
2Laser, lime glass has stronger absorption to it;
YAG laser, lime glass has perviousness preferably to it;
Optical-fiber laser, lime glass has perviousness preferably to it;
Xenon lamp, lime glass has perviousness preferably to it.
As one embodiment of the present invention, melt molding material (2) adopts the low melting glass powder, and fusion light beam light (L1) adopts CO
2Laser.Boss (3) moulding process is as shown in Figure 4.
Go up the position that needs to form boss (3) at glass basis (1), shop thickness is melt molding material (2) layer of 0.1mm;
In melt molding material (2) layer, focus diameter is less than the CO of 0.1mm with focus
2Laser beam is with suitable power irradiation melt molding material (2) layer, and melt molding material (2) is formed low melting glass spheroid (6) by the irradiation partial melting, and then combines with glass basis (1), roughly is spherical;
Close laser beam or progressively reduce irradiation power, single-point boss (3) moulding.
As another embodiment of the invention, slurry or thickener that the melt molding material adopts Fe, Ni, Cu powder and tackiness agent to form, the fusion light beam light adopts xenon lamp.
On glass basis, need to form the position of boss, shop thickness is the melt molding material layer of 0.2mm;
The locational melt molding material of fluxing point is in in the shielding gas protective atmosphere;
Heating glass matrix to 300 ℃, slurry or paste layers are dry, and higher temperature is decomposed the binder constituents in slurry or the paste layers;
With focus in the melt molding material; Xenon lamp light beam about focus diameter 0.2mm is with suitable power irradiation melt molding material layer, and the melt molding material is formed the alloy spheroid by the irradiation partial melting; And then partly being absorbed in glass basis, it is spherical that exposed parts roughly is;
Progressively reduce the molten irradiation power that applies until finishing irradiation;
Close the xenon lamp light beam, slowly reduce the glass basis temperature to room temperature, the single-point boss forming.
As another embodiment of the invention, the melt molding material adopts the Fe-Ni-Co powdered alloy, and the fusion light beam light is a YAG laser.
On glass basis, need to form the position of boss, shop thickness is the melt molding material layer of 0.2mm;
The locational melt molding material of fluxing point is in in the shielding gas protective atmosphere;
Heating glass matrix to 300 ℃;
With focus in the powdered alloy layer; Yag laser beam about focus diameter 0.1mm closes the melt molding material layer with suitable power irradiation, and the melt molding material is formed the alloy spheroid by the irradiation partial melting; And then partly being absorbed in glass basis, it is spherical that exposed parts roughly is;
Progressively reduce the molten irradiation power that applies until finishing irradiation;
Close laser beam, slowly reduce the glass basis temperature to room temperature, the single-point boss forming.
As another embodiment of the invention,
The melt molding material adopts the mixed slurry or the thickener of low melting glass powder and Fe-Ni-Co powdered alloy, and molten deposited light beam light is a YAG laser.
On glass basis, need to form the position of boss, shop thickness is the melt molding material layer of 0.2mm;
The locational melt molding material of fluxing point is in in the shielding gas protective atmosphere;
Heating glass matrix to 150 ℃;
Adopt the superimposed local boosting glass basis of light beam light, through intensification the binder constituents in slurry or the paste layers is decomposed, the light beam light of boosting glass basis is CO
2Laser;
With focus in the melt molding material layer; Yag laser beam about focus diameter 0.2mm is with suitable power irradiation melt molding material layer, and the melt molding material is formed spheroid by the partly or entirely fusing of irradiation part; And then combine with glass basis, it is spherical that exposed parts roughly is;
Progressively reduce the molten irradiation power that applies until finishing irradiation;
Close laser beam, slowly reduce the glass basis temperature to room temperature, the single-point boss forming.
As another embodiment of the invention, slurry or thickener that the melt molding material adopts glass powder and tackiness agent to form, molten deposited light beam light is CO
2Laser.
On glass basis, need to form the position of boss, shop thickness is the melt molding material layer of 0.1mm;
Change the molten light beam light focal length that applies of irradiation and realize local heating, higher temperature is decomposed the binder constituents in slurry or the paste layers;
Change the focal position of the molten deposited light beam of irradiation, the molten beam focus that applies is in the melt molding material layer, near the molten melt molding material of beam focus that applies partly or entirely melts, and forms spheroid, and then combines with glass basis, roughly is spherical;
Progressively reduce the molten irradiation power that applies until finishing irradiation;
Close laser beam, slowly reduce the glass basis temperature to room temperature, the single-point boss forming.
As another embodiment of the invention, mixed slurry or thickener that the melt molding material adopts the low melting glass powder and YAG laser is made up of the strong material powder that absorbs, molten deposited light beam light is a YAG laser.
On glass basis, need to form the position of boss, shop thickness is the melt molding material layer of 0.2mm;
Adopt the superimposed local boosting glass basis of light beam light, higher temperature is decomposed the binder constituents in slurry or the paste layers, and the light beam light of boosting glass basis is CO
2Laser;
With focus in the melt molding material layer; Yag laser beam about focus diameter 0.2mm is with suitable power irradiation melt molding material layer, and the melt molding material is formed the low melting glass spheroid by the irradiation partial melting; And then combine with glass basis, roughly be spherical;
Progressively reduce the molten irradiation power that applies until finishing irradiation;
Close laser beam, slowly reduce the glass basis temperature to room temperature, the single-point boss forming.
As another embodiment of the invention, the mixed powder that the melt molding material adopts the low melting glass powder and YAG laser is made up of the strong material powder that absorbs, molten deposited light beam light is a YAG laser.
On glass basis, need to form the position of boss, shop thickness is the melt molding material layer of 0.2mm;
With focus in the melt molding material layer; Yag laser beam about focus diameter 0.2mm is with suitable power irradiation melt molding material layer, and the melt molding material is formed the low melting glass spheroid by the irradiation partial melting; And then combine with glass basis, roughly be spherical;
Progressively reduce the molten irradiation power that applies until finishing irradiation;
Close laser beam, slowly reduce the glass basis temperature to room temperature, the single-point boss forming.
When forming a plurality of boss, in order to obtain highly consistent boss, to moltenly apply the material of boss, the thickness that material is sprawled all wants consistent, to light beam light selection also consistent with mechanism.
The boss of large volume can adopt repeatedly deposited mode to realize.
Claims (10)
1. form the method for boss on the glass basis, it is characterized in that: on glass basis, apply the method that formed material forms boss, comprise following operation with light beam light is molten:
On glass basis, form the operation of the deposited moulding material of zone shop one deck of boss at needs;
With light beam light in a certain way irradiation need form the molten formed material that applies on the lug boss position, make the molten all or part of fusion of formed material of applying, and with glass basis bonded operation.
2. the formation method of a kind of glass basis convex platform according to claim 1 is characterized in that: the said molten formed material that applies has bigger specific absorption to light beam light in the wavelength region may of said light beam light.
3. the formation method of a kind of glass basis convex platform according to claim 1 is characterized in that: the said molten formed material that applies comprises frit, metal charge, alloy material, perhaps their combination.
4. the formation method of a kind of glass basis convex platform according to claim 1 is characterized in that: the said molten formed material that applies comprises powder, thickener, slurry.
5. form the method for boss on a kind of glass basis according to claim 1, it is characterized in that: said light beam light comprises laser, xenon lamp.
6. form the method for boss on a kind of glass basis according to claim 1, it is characterized in that: said light beam light irradiation adopts the combination irradiation of being made up of multiple light beams light.
7. form the method for boss on a kind of glass basis according to claim 1, it is characterized in that: said light beam light irradiation adopts the irradiation that changes the exposure beam focal position.
8. form the method for boss on a kind of glass basis according to claim 1, it is characterized in that: said light beam light irradiation progressively reduces irradiation power until finishing irradiation before irradiation finishes.
9. form the method for boss on a kind of glass basis according to claim 1, it is characterized in that: said light beam light is before the molten deposited formed material of irradiation, and the heating glass matrix is to the temperature of regulation.
10. form the method for boss on a kind of glass basis according to claim 9, it is characterized in that: the temperature of said regulation is 150 ℃-300 ℃.
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|---|---|---|---|
| CN2011101880842A CN102351408A (en) | 2011-07-06 | 2011-07-06 | Method for forming boss on glass matrix |
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|---|---|---|---|
| CN2011101880842A CN102351408A (en) | 2011-07-06 | 2011-07-06 | Method for forming boss on glass matrix |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096291A (en) * | 2006-06-30 | 2008-01-02 | 三星Sdi株式会社 | Glass-glass jointing method, vacuum shell, electron transmitting display |
| CN102066278A (en) * | 2008-05-08 | 2011-05-18 | 肖特股份公司 | Glass ceramic composite structure and method for generating a glass ceramic composite structure |
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2011
- 2011-07-06 CN CN2011101880842A patent/CN102351408A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096291A (en) * | 2006-06-30 | 2008-01-02 | 三星Sdi株式会社 | Glass-glass jointing method, vacuum shell, electron transmitting display |
| CN102066278A (en) * | 2008-05-08 | 2011-05-18 | 肖特股份公司 | Glass ceramic composite structure and method for generating a glass ceramic composite structure |
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Application publication date: 20120215 |