48results about How to "Good glass performance" patented technology

The invention discloses a high strength glass fiber. The high strength glass fiber mainly comprises, by weight, silica sand, kaolin, calcite, fluorite, calciborite, mirabilite, and sodium carbonate. The invention provides a glass fiber raw material formula can be used for replacing pyrophyllite. Glass material preparation uniformity is increased obviously through reasonable control on the mass ratio of a plurality of raw materials, melting efficiency is increased, glass fiber finished product rate is increased, the prepared glass fiber is better in mechanical properties, and production cost isreduced. The invention also provides a preparation method of the glass fiber. No stirring is needed; glass liquid is mixed to be uniform by heat convection in a bath tank, and is used for preparationof glass fiber. The glass fiber prepared based on the formula and the preparation method is high in finished product rate, and excellent in corrosion resistance.

The invention discloses a method for chemically strengthening lithium-aluminum-silicon glass. The method comprises the following steps: 1) preheating the lithium-aluminum-silicon glass for the first time, and carrying out strengthening for the first time by adopting a mixed molten liquid of potassium nitrate and sodium nitrate as a strengthening salt solution, wherein the temperature of strengthening for the first time is 380-395 DEG C, and the time of strengthening for the first time is 4-6 hours; 2) performing heat dissipation on the glass subjected to strengthening treatment for the first time, and carrying out cleaning by adopting purified water; 3) preheating the glass obtained in the step (2) for the second time, and carrying out strengthening for the second time by adopting the mixed molten liquid of potassium nitrate and sodium nitrate as the strengthening salt liquid, wherein the temperature of strengthening for the second time is 395-410 DEG C, and the time of strengthening for the second time is 2-4 hours; and 4) performing heat dissipation on a product subjected to strengthening for the second time, and carrying out cleaning with the purified water so as to obtain strengthened lithium-aluminum-silicon glass. The method provided by the invention can improve CS and DOL of the product and better monitor the influence of a salt solution on strengthening performance, sothe product has good impact resistance and bending resistance.

The invention provides an environment-friendly near-infrared light absorbing glass, element and filter with high chemical stability and excellent permeation characteristic in the visible range. When the thickness of the near-infrared light absorbing glass is 0.3 mm, the transmittance at the wavelength of 400 nm is greater than 83%, and the transmittance at the wavelength of 500 nm is greater than 85%; and in the spectral transmittance within the wavelength range of 500 nm to 700 nm, the wavelength range is 631-655 nm when the transmittance is 50%. The near-infrared light absorbing glass contains Al(PO3)3, AlF3, R'F2, ZnO and CuO, wherein the R'F2 represents the sum of MgF2, CaF2, SrF2 and BaF2. The water-resistant action stability DW of the glass reaches Grade 1, and the acid-resistant action stability DA reaches or is superior to Grade 4.

The invention relates to optical glass, and provides infrared-transmitted germanium-gallate optical glass which is suitable for volume production and secondary profiling, and is high in refraction and high in dispersion. The glass contains GeO2, Ga2O3, BaO, ZrO2, TiO2 and PbO as necessary components, and does not contain thorium, cadmium or arsenic; the refractive index (nd) is 1.94-1.96; and the abbe number (upsilon d) is 21-23. The optical glass disclosed by the invention has good physical and chemical properties and infrared spectrum transmitting performance, and is mainly applied to infrared-transmitted windows and optical path lenses; the infrared cutoff wavelength is greater than 5.5 microns; and the ultraviolet cutoff wavelength is smaller than 400nm.

The invention discloses ZrO2-contained vehicle TWIP steel continuous casting crystallizer protection slag and application thereof. The protection slag consists of the following oxide components in percentage by mass: 20-40% of CaO, 8-20% of SiO, 13-30% of Al2O3, 5-12% of Na2O, 1-6% of Li2O, 3-16% of BaO, 2-8% of MnO2, 4-13% of F-, 1.5-3.5% of ZrO2, 1.3-2.4 of (CaO+BaO) / Al2O3, 1.9-2.5 of CaO / SiO2, and 1.6-2.2 of Al2O3 / SiO2. The protection slag can be preferably applied to the continuous casting process of TWIP steel with 15-25 mass% of Mn and 2-4 mass% of Al.

The invention relates to infrared transmitting germanate glass and a preparation method thereof, and belongs to the technical field of germanate glass. The invention mainly provides infrared transmitting germanate glass with excellent physiochemical performance and infrared transmitting performance and a preparation method thereof. The germanate glass comprises the following components of: 35 to 45 percent of GeO2, 15 to 30 percent of M2O3, 25 to 40 percent of M'O, 0 to 15 percent of M''O2 and 0 to 5 percent of La2O3, wherein M2O3 is Al2O3, Ga2O3 and the like; M'O is MgO, CaO, BaO and the like; and M''O2 is ZrO2, TiO2 and the like. The preparation method comprises the following steps of: a, weighing raw materials, and mixing uniformly in a ball-milling tank; b, melting in a platinum crucible; c, after melting, introducing dry gas on the surface of glass liquid to remove moisture in the glass liquid, and stirring, homogenizing and clarifying by using a platinum stirrer simultaneously; d, homogenizing and clarifying the liquid, and forming in a die; and e, annealing. The infrared transmitting germanate glass has the excellent physiochemical and infrared performance, the transformation temperature is between 650 and 750 DEG C, the infrared cut-off wavelength is more than 6 micrometers, the ultraviolet cut-off wavelength is less than 400 nanometers, and the vickers hardness is more than 650 kgf / mm<2>. The invention is mainly used for the infrared transmitting germanate glass and the preparation method thereof.

The invention discloses a high strength glass fiber. The high strength glass fiber mainly comprises, by weight, silica sand, kaolin, calcite, fluorite, calciborite, mirabilite, and sodium carbonate. The invention provides a glass fiber raw material formula can be used for replacing pyrophyllite. Glass material preparation uniformity is increased obviously through reasonable control on the mass ratio of a plurality of raw materials, melting efficiency is increased, glass fiber finished product rate is increased, the prepared glass fiber is better in mechanical properties, and production cost isreduced. The invention also provides a preparation method of the glass fiber. No stirring is needed; glass liquid is mixed to be uniform by heat convection in a bath tank, and is used for preparationof glass fiber. The glass fiber prepared based on the formula and the preparation method is high in finished product rate, and excellent in corrosion resistance.

The invention relates to the technical field of metallurgical waste slag reuse, in particular to a slag adjustment method for producing high-quality slag wool with alkaline refining slag. It is characterized in that: for the alkaline refining slag produced in the process of steelmaking or ferroalloy refining, aluminum ash slag containing aluminum, spodumene and boron anhydride are used as slag adjusting agents in sequence to reduce the alkalinity and oxidation of refining slag and improve Fiber-forming properties of slag.

The invention discloses a preparation method of powder for new materials. The preparation method includes following steps: S1, performing primary processing: selecting high-quality sericite raw ore, performing rough breaking the sericite raw ore, and using a rolling machine for rolling to obtain particles A; S2, performing secondary processing: placing the particles A in a reaction kettle, adding lithium chloride into the reaction kettle, setting a weight ratio of the particles A to lithium chloride to be 1-3:4-7, fully stirring at temperature of 70-90 DEG C for 20-40 min, and adding gamma-aminopropylmethyldiethoxysilane into the reaction kettle, fully stirring at temperature of 80-100 DEG C for 10-30 min to obtain a mixture B; S3, performing ultrasonic treatment: placing the mixture B in an ultrasonic wave generator for ultrasonic treatment for 2-4 h to obtain a mixture C, wherein ultrasonic power is 200-300 W; S4, drying and sterilizing. The preparation method is simple and high in production quantity, and the powder for the new materials is high in dispersity, glossy and suitable for popularization.

The invention discloses a low-oxidizability continuous casting covering slag comprising the following chemical components in percentage by weight: 15-25% of CaO, 20-35% of Al2O3, 10-20% of SiO2, 2-5% of Li2O+K2O, 2-10% of B2O3, F<=10%, Na2O<=10%, 5-15% of MgO+BaO+SrO, and the balance of carbon and inevitable impurities. Furthermore, the hemispheric point temperature of the continuous casting covering slag is controlled within a range from 1000 DEG C to 1200 DEG C, and the viscosity is controlled within a range from 0.2 pa. s to 0.6 pa. s. Practices show that the low-oxidizability continuous casting covering slag has good combination property and meets the requirements of continuous casting processes of steel types, i.e. TRIP (Transformation-Induced Plasticity) steel with high-content oxidizable elements i.e. Al, Ti or rare earth, and the like, silicon steel, container steel, and the like and realize the multi-furnace continuous casting.

Fluoride glass and a preparing method thereof are disclosed. The fluoride glass includes, in mole percentages, 16-70% of ZrF4, 13-32% of BaF2, 5-18% of MF, 0-14% of MeF2 and 0-28% of MfF3, wherein the M is one or two selected from Na and Li, the Me is one or more selected from Zn, Mg and Ca, and the Mf is one or two selected from Al and La. The fluoride glass has a low cost and is suitable for applications in optical windows of near ultraviolet to middle-infrared wavebands. The cutoff wavelength of the prepared glass is greater than 6 [mu]m. The glass has good glass forming capacity, and is suitable for preparing matrix glass of infrared laser fibers and fiber optic amplifiers and other optical materials. The glass has good glass forming capacity, good chemical stability, and low theoretical loss and is suitable for preparing matrixes of low-loss fluoride fibers and doped fibers.

The invention discloses special kaolin for crystallizer covering slags, belongs to the technical field of continuous casting of cast steel and aims to effectively harmonize contradiction of covering slag lubrication ingot casting and heat transfer control in a continuous casting process. The special kaolin for the crystallizer covering slags comprises the following components in parts by weight: 65-66 parts of SiO2, 25-26 parts of Al2O3, 1.5-2 parts of Fe2O3, 1-2 parts of CaO and 1-2 parts of MgO. The special kaolin disclosed by the invention is applied to production of the crystallizer covering slags which are applied to a continuous casting process of the cast steel.

The invention discloses crystallizer casting powder for high-crystallinity high-lubricity continuous casting. The crystallizer casting powder comprises, by weight, 40%<CaO<46.5%, 22%<SiO2<30%, 6.8%<F-<7.8%, a compound formed by one or two or three of ZnO, B2O3 and BaO, 7%<Li2O+Na2O<15%, Al2O3<3%, MgO<3%, Fe2O3<2%, 2%<C<15% and the balance impurities, wherein 4%<the compound<26%, ZnO<8%, B2O3<8%, and BaO<10%. The crystallizer casting powder effectively coordinates contradiction between lubricating of casting blanks by using the casting powder and controlling of heat transfer in a continuous casting process of peritectic steel plates. The casting powder improves casting blank lubrication, simultaneously guarantees the capacity of the casting powder of evenly transferring heat, is favorable for improving casting blank quality in the continuous casting process of the peritectic steel, balances heat flow of the upper portion and the lower middle portion of the crystallizer, increases the thickness of blank casings when being discharged from the crystallizer, and can improve pulling speed and production efficiency.

The invention relates to an optical glass. The invention provides a high refraction, high dispersion infrared germanium gallate optical glass suitable for batch production and secondary pressing. The glass contains GeO2, Ga2O3, BaO, ZrO2, TiO2 and PbO as essential components, does not contain thorium, cadmium and arsenic, the refractive index (nd) is between 1.94 and 1.96, and the Abbe number (υd) is between 21 and 23 between. The optical glass of the present invention has good physical and chemical properties and infrared spectrum transmission performance, the infrared cut-off wavelength is greater than 5.5 μm, and the ultraviolet cut-off wavelength is less than 400 nm, and is mainly used for infrared transmission windows and optical path lenses.

The invention discloses a high-aluminum ceramic filler prepared from gamma aluminum oxide and a preparation method of the high-aluminum ceramic filler. The high-aluminum ceramic filler is prepared from 83-94 wt% of an aluminum oxide raw material with a main crystal phase being gamma-Al2O3, 2-5 wt% of a borate mineral or a synthesized borate compound, 1-4 wt% of ball clay, 1-4 wt% of nano silicon dioxide, 1-4 wt% of a calcium-magnesium complex mineral and 0-7 wt% of calcined aluminum oxide powder. According to the invention, the technological process is simplified, the procedure of converting gamma-Al2O3 into alpha-Al2O3 through calcination is not needed, the high-aluminum ceramic filler is directly prepared from gamma-Al2O3, carbon emission and energy consumption are greatly reduced, the product percent of pass is high, and the performance reaches or exceeds the standard requirement of the chemical industry. The high-aluminum ceramic filler can be used as a supporting or covering material for chemical reaction tower (device) beds in petrochemical industry, coal chemical industry, chemical fertilizer, nonferrous metallurgy and the like.

The invention provides a high V-value and low-temperature coefficient heavy metal borate glass as well as a preparation method and the application thereof. The preparation method comprises the following steps: sufficiently mixing PbO and B2O3 or H3BO3 and Bi2O3, melting, and clarifying; or adding a rare-earth oxide or a transition metal oxide, performing stirring homogenization, and implementing amelting-casting method, so as to obtain the high V-value and low-temperature coefficient heavy metal borate glass. The heavy metal borate glass provided by the invention is low in manufacturing cost,has a high Verdet constant and very low temperature dependency, can be widely applied to design of various magnetic-optical devices, and needs no temperature compensation technique; the glass is excellent in magnetorotation property, has near-infrared permeability up to 85%, and is applicable to manufacturing of various magnetic-optical devices such as magnetic-optical current sensors, magnetic-optical switches, magnetic-optical modulators and magnetic-optical isolators.

The invention belongs to the technical field of metallurgy materials, and particularly relates to continuous casting crystallizer casting powder for P91 steam pipeline steel and a preparation method of the continuous casting crystallizer casting powder. The casting powder is prepared from, by weight percent, 26.0%-35.0% of SiO2, 27.0%-37.0% of CaO, 0.4%-1.2% of Li2O, not larger than 6.0% of Al2O3, 7%-13% of Na2O, 4%-8% of F-, not larger than 4.0% of MgO, not larger than 1.0% of Fe2O3, 5%-9% of Csolid and 8%-12% of volatile components. The casting powder can achieve crystallizer lubricating during low-temperature casting, a slag film has sufficient crystallization to improve crystallizer heat transfer, P91 steel large round blank surface longitudinal cracks are reduced, and the casting blank quality is improved.