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Preparation method of oil-stain-resistant optical glass
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An optical glass and oil-resistant technology, which is applied in glass manufacturing equipment, glass furnace equipment, glass production, etc., can solve problems such as not easy to erase, reduce service life, leave traces, etc., to improve oil resistance and scratch resistance ability, improve the quality of use and service life, enhance the effect of wear resistance and scratch resistance
Inactive Publication Date: 2021-10-22
湖南振添光学玻璃科技有限公司
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[0003] Although the analysis of the existing optical glass production process has improved the light transmittance and refractive index of the optical glass, it cannot prevent the oil pollution on the surface of the optical glass, and the oil pollution resistance of the optical glass produced by the existing production process is not good. When the hand touches the glass, the oil and water stains on the hand are easy to leave marks on the glass, and these marks are not easy to erase, which will affect the use effect of the optical glass and bring users a lot of trouble. It is inconvenient to come, and often wipe the optical glass, it is easy to scratch the surface of the optical glass, reducing its service life. Therefore, those skilled in the art provide a kind of oil-resistant optical glass and its preparation method to solve the above-mentioned background technology questions raised in
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Embodiment 1
[0022] A preparation method of oil-resistant optical glass, comprising the following steps:
[0023] S1: Prepare the following components according to the molar percentage content: silicon dioxide 17%, dilanthanum trioxide 32%, diboron trioxide 18%, nano-titanium dioxide 7%, aluminum oxide 6%, sodium oxide 11%, potassium oxide 2%, CalciumOxide 3%, MagnesiumOxide 2%, Protective Liquid 2% for spare;
[0024] S2: Put silicon dioxide, lanthanum trioxide, diboron trioxide, nano-titanium dioxide, potassium oxide, calcium oxide, magnesium oxide, aluminum oxide and sodium oxide into the mixer in sequence, and mix thoroughly and evenly, then Put it into a quartz container, melt and clarify at a temperature of 1350°C, and perform the initial melting, during which oxygen-enriched air is continuously introduced to obtain a preliminary molten glass material;
[0025] S3: Melt the preliminary glass frit obtained in S2 at a temperature of 1550°C for 7 hours. During the glass melting proce...
Embodiment 2
[0036] A preparation method of oil-resistant optical glass, comprising the following steps:
[0038] S2: Put silicon dioxide, lanthanum trioxide, diboron trioxide, nano-titanium dioxide, potassium oxide, calcium oxide, magnesium oxide, aluminum oxide and sodium oxide into the mixer in sequence, and mix thoroughly and evenly, then Put it into a quartz container, melt and clarify at a temperature of 1400°C, and perform the initial melting, during which oxygen-enriched air is continuously introduced to obtain a preliminary molten glass material;
[0039] S3: Melt the preliminary frit liquid obtained in S2 at a temperature of 1550°C for 7.8 hours. During the glass melting process, stir t...
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Abstract
The invention discloses a preparation method of oil-stain-resistant optical glass, and relates to the technical field of optical glass preparation. The optical glass comprises an oil stain-resistant film, and further comprises the following components in percentage by mole: 15-20% of silicon dioxide, 30-35% of lanthanumtrioxide, 20-30% of diboron trioxide, 5-12% of an auxiliary agent, 4-10% of aluminum oxide, 5-12% of sodiumoxide, 1-3% of potassiumoxide, 1-5% of calcium oxide, 2-7% of magnesium oxide and 2-10% of a protective liquid. During production, the surface of the optical glass is coated with a protective film and an oil-resistant film, so that the optical glass has high light transmittance and refractive index; the wear resistance and scratch resistance of the optical glass are further enhanced, and the problem that oil stains and water stains on the hand easily leave marks on the glass when the hand touches the optical glass is solved. Therefore, a problem of scratches on the surface of the optical glass caused by frequent wiping of the optical glass is avoided, and the oil stain resistance and the scratch resistance of the optical glass are improved.
Description
technical field [0001] The invention relates to the technical field of optical glass preparation, in particular to a preparation method of oil-resistant optical glass. Background technique [0002] Optical glass is a glass that can change the direction of light propagation and change the relative spectral distribution of ultraviolet, visible or infrared light. Optical glass in the narrow sense refers to colorless optical glass; optical glass in the broad sense also includes colored optical glass, laser glass, quartz optical glass, anti-radiation glass, ultraviolet and infrared optical glass, fiber optic glass, acousto-optic glass, magneto-optical glass and photochromic Glass. Optical glass can be used to manufacture lenses, prisms, mirrors and windows in optical instruments. Components made of optical glass are key components in optical instruments. With the rapid development of precision optical instruments, optical information communication, and optoelectronic products, ...
Claims
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