CN112745025B - Potassium barium glass for lens and preparation method and application thereof - Google Patents
Potassium barium glass for lens and preparation method and application thereof Download PDFInfo
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- CN112745025B CN112745025B CN202011622325.5A CN202011622325A CN112745025B CN 112745025 B CN112745025 B CN 112745025B CN 202011622325 A CN202011622325 A CN 202011622325A CN 112745025 B CN112745025 B CN 112745025B
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- glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Glass Compositions (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention belongs to optical glass, and particularly relates to potassium barium glass for a lens, and a preparation method and application thereof. The production raw materials of the potassium barium glass for the lens comprise the following components: silicon dioxide, potassium carbonate, barium carbonate and sodium carbonate, wherein the content of the sodium carbonate is less than 2% by weight; the weight percentage content of the potassium carbonate and the barium carbonate is 12-18 percent in total; the potassium carbonate and the barium carbonate are in the following weight ratio: (6-9):1. The preparation method comprises the following steps: batching, melting, forming and annealing. In the technical scheme provided by the invention, potassium carbonate and barium carbonate are used for replacing part of sodium carbonate in soda-lime glass, so that the content of the sodium carbonate in the formula is reduced, the problem of acid regurgitation of the lens is solved, and in addition, the comprehensive performance requirements required by the lens for the automobile lamp are obtained by the synergistic effect generated among the components and the proper processing technology.
Description
Technical Field
The invention belongs to the technical field of optical glass, in particular to lens glass for car lamps, and particularly relates to potassium barium glass for a lens and a preparation method and application thereof.
Background
The headlight of lens formula lamp holder compares the headlight that adopts traditional lamp holder and has, and luminance is even, and the penetrating power is strong, so he has stronger penetrating power whether rainy day or in heavy fog weather.
The existing lens glass material is mainly soda-lime glass, the glass lens is irradiated by light for a long time, if the soda-lime glass lens meets the automobile cleaning requirement or meets rainy weather, the soda-lime glass lens has acid spitting phenomenon under the condition of long-time high temperature and high heat, namely white particles are separated out, the transmittance of the glass is influenced, and thus the traveling danger is caused.
Because the functional requirements of lens glass need to be balanced in various aspects, and high gloss, high refractive index, toughness, brightness, and perfect property, chemical stability, thermal stability, etc. are needed, there is a need to develop a glass frit that can meet the above requirements to meet the market demand.
Disclosure of Invention
The invention provides a potassium barium glass for a lens and a preparation method and application thereof, which are used for solving the problem of acid discharge of the conventional glass lens under the condition of high temperature and high humidity.
In order to solve the technical problem, the technical scheme of the invention is as follows: the production raw materials of the potassium barium glass for the lens comprise the following components: silicon dioxide, potassium carbonate, barium carbonate and sodium carbonate, wherein the content of the sodium carbonate is less than 2% by weight; the total weight percentage content of the potassium carbonate and the barium carbonate is 12-18%, and the preferred weight percentage content is as follows: 15.0 to 15.3 percent; the potassium carbonate and the barium carbonate are mixed according to the weight ratio: (6-9) 1, preferably: (7.8-7.9):1.
The potassium carbonate improves the light diffusion capacity of the glass lens, so that light has a larger light diffusion angle after passing through the lens, the potassium carbonate can also play a role in catalysis, various ingredients can be dissolved into glass liquid in a high-temperature melting part more quickly, and the addition of barium carbonate can also improve the refractive index of the lens. More importantly, the addition of the potassium carbonate and the barium carbonate is increased, so that the addition of the sodium carbonate can be greatly reduced, and the phenomenon of acid regurgitation caused by the evaporation of sodium oxide in the high-temperature and high-humidity environment of the sodium carbonate can be avoided, so that a driver can obtain a clear view at night.
Optionally, the raw materials for producing the potassium barium glass for lenses are compounded with the following components: sodium nitrate, calcite, arsenous acid, zinc oxide, boric acid and alumina.
Optionally, the silica is derived from silica sand and recycled glass.
The recycled glass is added after being crushed, so that the melting temperature and the energy consumption can be effectively reduced, raw materials can be saved, the resource waste can be reduced, and the production cost can be reduced.
Optionally, the ratio of the quartz sand to the recycled glass by weight is 1 (0.9-1.5), preferably 1.
Optionally, the production raw materials of the potassium barium glass for the lens comprise the following components in percentage by weight:
the invention also provides a preparation method of the potassium barium glass, which comprises the following steps: the method comprises the following steps:
s1, proportioning, namely weighing the components according to the proportion of a raw material formula, and putting the components into a mixer to prepare a batch;
s2, melting, namely putting the batch into a melting furnace, keeping the temperature at 1450-1550 ℃ for 55-65 hours, and then removing bubbles to obtain clear molten glass after passing through a roar and an ascending way;
s3, molding, namely injecting the molten glass into a mold through feeding equipment for molding;
s4, annealing, namely annealing the formed product, cooling to room temperature, and discharging.
Optionally, if the raw material formula contains the recycled glass, the recycled glass is not added into the batch in S1, and after other components are mixed in a mixer, the recycled glass is added and then put into the furnace together.
Optionally, the furnace employs electrical heating.
Optionally, the feeding device is a dropping machine.
Optionally, the annealing in S4 comprises the following stages: the first stage of temperature reduction annealing, the second stage of heat preservation, the third stage of temperature reduction annealing and the fourth stage of natural cooling, wherein the annealing process is carried out for 3.5-4 hours.
The multi-stage annealing is beneficial to eliminating the stress in the glass ball.
The invention also provides an automobile lamp lens which is prepared by the method.
In addition, through the synergistic effect generated among the components and the proper processing technology, the high-quality lens with mechanical property, chemical stability and optical property is obtained, so that the lens meets the comprehensive performance requirement required by the lens for the automobile lamp.
Detailed Description
For the convenience of understanding, the potassium barium glass for lenses and the preparation method and application thereof are described below with reference to examples, which are only for illustrating the present invention and are not to be construed as limiting the scope of the present invention.
The starting materials, equipment and procedures used in the examples are, unless otherwise indicated, commercially available, conventional techniques and conditions.
Example 1
The potassium barium glass is used for producing a lens product in an automobile lamp by the following preparation process, and specifically comprises the following steps:
s1, proportioning, namely weighing the following components by weight, putting the components into a mixer to prepare a mixture,
s2, melting, namely mixing the batch and the recycled glass, putting the mixture into a melting furnace by the amount of about 451kg in total, keeping the temperature at about 1500 ℃ for about 60 hours, and then obtaining clarified molten glass through a roar and an ascending channel, wherein the melting furnace is electrically heated;
s3, molding, namely injecting the molten glass into a mold through a dropping machine for molding;
and S4, annealing, namely annealing the formed product for about 3.8 hours, wherein the annealing is carried out for the first stage, the temperature is reduced, the annealing is carried out for the second stage, the temperature is reduced, the annealing is carried out for the third stage, the natural cooling is carried out for the fourth stage, and the glass lens is obtained after the glass lens is cooled to room temperature and taken out of the furnace.
Example 2
The potassium barium glass is used for producing a lens product in an automobile lamp by the following preparation process, and specifically comprises the following steps:
s1, proportioning, namely weighing the following components by weight, putting the components into a mixer to prepare a mixed batch,
s2, melting, namely mixing the batch with recycled glass, putting the mixture into a melting furnace in an amount of about 455kg in total, keeping the temperature at about 1550 ℃ for about 64 hours, and then passing through a roar and an ascending channel to obtain clear molten glass, wherein the melting furnace is electrically heated;
s3, molding, namely injecting the molten glass into a mold through a dropping machine for molding;
s4, annealing, namely annealing the formed product in the following steps of annealing in the first step, cooling and annealing, keeping the temperature in the second step, cooling and annealing in the third step, naturally cooling in the fourth step, discharging the glass lens after the glass lens is cooled to room temperature, and obtaining the glass lens, wherein the annealing process is about 3.5 hours.
Example 3
The potassium barium glass is used for producing a lens product in an automobile lamp by the following preparation process, and specifically comprises the following steps:
s1, proportioning, namely weighing the following components by weight, putting the components into a mixer to prepare a mixed batch,
s2, melting, namely mixing the batch with recycled glass, putting the mixture into a melting furnace according to the amount of about 453kg, keeping the temperature for about 56 hours at about 1450 ℃, and then passing through a roar and an ascending channel to obtain clarified molten glass, wherein the melting furnace is electrically heated;
s3, molding, namely injecting the molten glass into a mold through a dropping machine for molding;
s4, annealing: the formed product is annealed in the following stages, namely, the first stage of temperature reduction annealing, the second stage of heat preservation, the third stage of temperature reduction annealing and the fourth stage of natural cooling, and is discharged after being cooled to room temperature to obtain the glass lens, and the annealing process is carried out for about 4 hours
Comparative example 1
The difference from the embodiment 1 is that the composition comprises the following components in parts by weight:
comparative example 2
The difference from the embodiment 1 is that the composition comprises the following components in parts by weight:
the energy consumption of example 1 was reduced by about 10% over the comparative example 2 over a one month continuous working comparison, presumably because the recycled glass was more easily melted.
Performance test
Examples 1-3 and comparative example 1 were subjected to the following experimental tests:
performance test 1: what test the acid passes can be reflected
The acid regurgitation test is carried out in a high-low temperature alternating test box, the temperature of the test box is set to be an environment with the temperature of 80 ℃ and the humidity of 80%, a glass lens is placed in the test box, and the time is recorded when the glass surface appears white powder and becomes fuzzy (the acid regurgitation phenomenon is the phenomenon).
And (4) performance test 2: the beam angle of the car light is defined by CIE international lighting and Chinese national standard, and means an area included angle of 50% of peak central light intensity on a plane where the beam axis is located and passing through the central point of the front face of the lamp as the axis.
Performance test 3: the lens refractive index test method comprises the following steps: measured with an Abbe refractometer. Before testing, the glass lens needs to be polished to be smooth on two surfaces, the right-angle prism is separated, and the upper mirror surface and the lower mirror surface are scrubbed by silk or lens wiping paper. Using purified water to test the precision, when testing the refractive index of the glass, using a dropper to make the first drop of bromonaphthalene on the lower mirror surface, so that no gap exists between the glass and the mirror surface, adjusting a reflector to make the field of view in the mirror bright, and rotating a prism until a bounding line is observed in the mirror or a colored light band appears; if a color light band appears, the chromatic dispersion is adjusted to make the boundary line of light and shade clear, and then the right-angle prism is rotated to make the boundary line pass through the intersection point of the cross shape. The reading is recorded.
TABLE 1
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the teachings of the foregoing embodiments, or equivalents may be substituted for some or all of their features, without departing from the scope of the claims of the present invention.
Claims (10)
1. The potassium barium glass for the lens is characterized in that the production raw materials comprise the following components: silicon dioxide, potassium carbonate, barium carbonate and sodium carbonate, wherein the content of the sodium carbonate is less than 2% by weight; the weight percentage content of the potassium carbonate and the barium carbonate is 12-18 percent in total; the potassium carbonate and the barium carbonate are mixed according to the weight ratio: (6-9) to 1, wherein the silicon dioxide is derived from quartz sand and recycled glass, and the ratio of the quartz sand to the recycled glass is 1 to (0.9-1.5) by weight.
2. The potassium barium glass for lenses according to claim 1, wherein the weight percentage content of the potassium carbonate and the barium carbonate is 15.0-15.3% in total, and the weight ratio of the potassium carbonate to the barium carbonate is (7.8-7.9): 1.
3. The potassium barium glass for lenses according to claim 1, wherein the potassium barium glass for lenses is further compounded with the following components: sodium nitrate, calcite, arsenous acid, zinc oxide, boric acid and alumina.
4. The potassium barium glass for lens according to claim 1, wherein the ratio of the quartz sand to the recycled glass is 1:1.2 by weight.
5. The potassium barium glass for lenses according to claim 1, wherein the production raw materials of the potassium barium glass for lenses comprise the following components in percentage by weight:
6. a method for producing a potassium barium glass for a lens according to any one of claims 1 to 5, comprising the steps of:
s1, preparing materials: weighing the components according to the proportion of the raw material formula, and putting the components into a mixer to prepare a batch mixture;
s2, melting: putting the batch into a smelting furnace, keeping the temperature at 1450-1550 ℃ for 55-65 hours, and then removing bubbles to obtain clear molten glass after passing through a throat and an ascending channel;
s3, forming: injecting the molten glass into a mold through feeding equipment for molding;
s4, annealing: and annealing the formed product, cooling to room temperature, and discharging.
7. The method according to claim 6, wherein if the raw material formulation contains recycled glass, the recycled glass is not added to the batch in S1, and after other components are mixed in the mixer, the recycled glass is added and then put into the furnace together.
8. The method of claim 6, wherein the furnace is electrically heated.
9. The method for producing a potassium barium glass for a lens of claim 6, wherein the annealing in S4 comprises the following stages: the first stage of temperature reduction annealing, the second stage of heat preservation, the third stage of temperature reduction annealing and the fourth stage of natural cooling, wherein the annealing process is carried out for 3.5-4 hours.
10. A lens for an automobile lamp, characterized by being produced by the production method according to any one of claims 6 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011622325.5A CN112745025B (en) | 2020-12-31 | 2020-12-31 | Potassium barium glass for lens and preparation method and application thereof |
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| CN202011622325.5A CN112745025B (en) | 2020-12-31 | 2020-12-31 | Potassium barium glass for lens and preparation method and application thereof |
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| CN102351419A (en) * | 2011-07-01 | 2012-02-15 | 湖北戈碧迦光电科技股份有限公司 | K9 optical glass and preparation method thereof |
| CN104556689B (en) * | 2015-01-05 | 2017-03-29 | 武汉理工大学 | A kind of new highly expanded optical glass and preparation method thereof |
| WO2017175552A1 (en) * | 2016-04-04 | 2017-10-12 | 株式会社 オハラ | Optical glass, preform material and optical element |
| CN106396373A (en) * | 2016-08-26 | 2017-02-15 | 湖北戈碧迦光电科技股份有限公司 | Functional optical glass, and preparation method and applications thereof |
| CN109553298A (en) * | 2019-01-16 | 2019-04-02 | 湖北戈碧迦光电科技股份有限公司 | A kind of light source glass and preparation method thereof with special chemical stability |
| CN110563329A (en) * | 2019-10-13 | 2019-12-13 | 中国建材桐城新能源材料有限公司 | Light diffusion glass |
| CN110937801B (en) * | 2019-12-18 | 2022-04-15 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN112028474B (en) * | 2020-09-11 | 2022-04-15 | 成都光明光电股份有限公司 | Optical glass |
| CN112028475B (en) * | 2020-09-11 | 2022-04-15 | 成都光明光电股份有限公司 | Optical glass and optical element |
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