55results about How to "Improve meltability" patented technology

Low-dielectric-constant glass fibers having a glass composition comprising, by weight %, 50 to 60% of SiO2, 10 to 18% of Al2O3, 14% to less than 20% of B2O3, 1% to less than 6% of MgO, 2 to 5% of CaO, 0.5 to 5% of TiO2, 0 to 0.3% of Li2O, 0 to 0.3% of Na2O, 0 to 0.5% of K2O and 0 to 2% of F2, the content of MgO+CaO being 4 to 11% and the content of Li2O+Na2O+K2O being 0 to 0.6%. The glass fiber has a low dielectric constant and a low dielectric tangent, is excellent in productivity and workability and is also excellent in water resistance, and the glass fiber is suitable for reinforcing printed wiring boards for high-density circuits.

A toner comprising: a toner particle containing a binder resin and a colorant; and an external additive, wherein the external additive is a composite particle having an organic substance and an organosilicon polymer coating layer on the surface of the organic substance, and when a curve for the variation (dE′ / dT) in the storage elastic modulus E′ of the toner with respect to temperature T [° C.] is obtained on the basis of a curve of the temperature T—the storage elastic modulus E′ [Pa] of the toner, as determined by powder dynamic viscoelasticity measurements of the toner, the relative minimum value on the lowest temperature side between the onset temperature and 90° C. is −1.35×108 or less.

The lead-free, arsenic-free, preferably gadolinium-free and fluorine-free, optical glass has a refractive index of 1.86≦nd≦1.95, an Abbe number of 19≦vd≦24, a transformation temperature of ≦595° C., preferably ≦550° C., good crystallization stability, good processing properties and production properties. The optical glass is free of Na2O, frre of B2O3 and has a composition (based on oxide content in % by weight) of P2O5, 14-31; Nb2O5, 22-50; Bi2O3, 5-36; WO3, >10-25; GeO2, 0-14; Li2O, 0-6; K2O, 0-6; Cs2O, 1-7; MgO, 0-6; CaO, 0-6; SrO, 0-6; BaO, 0-6; ZnO, 0-6; TiO2, 0-4; Σ alkali oxides, 2-12; Σ alkaline earth oxides, 0-10; Σ Nb2O5, WO3, Bi2O3≦50 and fining agents, 0-2.

The lead-free, arsenic-free, preferably gadolinium-free and fluorine-free, optical glass has a refractive index of 1.86≦nd≦1.95, an Abbe number of 19≦vd≦24, a transformation temperature of ≦595° C., preferably ≦550° C., good crystallization stability, good processing properties and production properties. The optical glass has a composition (based on oxide content in % by weight) of P2O5, 14-31; Nb2O5, 22-50; Bi2O3, 5-36; WO3, >10-25; GeO2, 0-14; Li2O, 0-6; K2O, 0-6; Cs2O, 0-7; MgO, 0-6; CaO, 0-6; SrO, 0-6; BaO, 0-6; ZnO, 0-6; TiO2, 0-4; Σ alkali oxides, 2-12; Σ alkaline earth oxides, 0-10; Σ Nb2O5, WO3, Bi2O3≦50 and fining agents, 0-2.

A P2O5—BaO—ZnO—Nb2O5 type optical glass contains 25-50 wt. % P2O5, 15-35 wt. % BaO, 1-25 wt. ZnO, and 3-10 wt. % Nb2O5. The optical glass has a high refractive index (particularly preferably the refractive index nd of 1.6 or more), low dispersion (an Abbe number υd of 42 or more), a low deformation point, and improved resistance to devitrification upon molding, and is suitable for precision-mold press molding or other molding processes and also suitable for transfer of a fine structure.

The present invention relates to lead and arsenic-free optical hard crown glass with lower transition temperature (Tg≤520°C), characterized in that its optical range has a refractive index of 1.57≤nd≤1.61 and a refractive index of 56≤νd≤63 Dispersion coefficient. The glass has the following composition (in weight percentage): (see the above formula) wherein, ΣTiO2, ZrO2<0.9. Refining agents can be added as long as they do not contain arsenic.

Devised are a glass and glass substrate, which contain an alkaline component at a low content, are low in density and thermal expansion coefficient, are high in strain point and Young's modulus, and are excellent in devitrification resistance, meltability, formability, and the like. That is, the glass of the present invention includes as a glass composition, in terms of mass %, 58 to 70% of SiO2, 16 to 25% of Al2O3, 3 to 8% of B2O3, 0 to 5% of MgO, 3 to 13% of CaO, 0 to 6% of SrO, 0 to 6% of BaO, 0 to 5% of ZnO, 0 to 5% of ZrO2, 0 to 5% of TiO2, and 0 to 5% of P2O5.

The invention discloses an automatic-stirring smelting furnace. The automatic-stirring smelting furnacecomprises a furnace body, wherein a feeding inlet and a discharging outlet are arranged on the furnace body; the bottom part of the furnace body is provided with a permanent magnet stirrer; the permanent magnet stirrer is mounted on the bottom part of a smelting furnace; and the stirring operation is performed by the permanent magnet technology. Compared with manual stirring, the automatic-stirring smelting furnace has the following advantages: 1, the operation is carried out without opening a furnace door, the heat consumption is reduced, and 20% of energy consumption can be saved; 2, since the components are even and the grains are refined, the best smelting effect is achieved; 3, non-direct-contact stirring is adopted so as to avoid artificial secondary pollution, and the generation of aluminum oxide slags is reduced; 4, the smelting speed of the smelting furnace is increased; 5, the temperature difference between the surface layer and the bottom part of a smelting body normally can be controlled within 5 DEG C so as to avoid the smelting body being overheated or being over-burnt locally; and 6, the operation is simple and the workload of workers is reduced greatly.

The invention discloses an amorphous matrix composite material and a preparation method thereof, and belongs to the technical field of new materials. The matrix of the amorphous matrix composite material is a Cu-ETM amorphous alloy; the Cu-ETM amorphous alloy comprises Cu and ETM (early transition metal) elements; the atomic percent chemical composition of the Cu-ETM amorphous alloy is Cu<100>--AlETM, wherein the value of a is more than or equal to 0 and less than or equal to 25, the value of b is more than or equal to 25 and less than or equal to 75, ETM is Zr<1-x-y>Hf<x>Ti<y>, the value of x is more than or equal to 0 and less than or equal to 1, and the value of y is more than or equal to 0 and less than 0.5. The preparation method of the amorphous matrix composite material comprises the following steps: firstly, preparing an ETM-O intermediate alloy; secondly, determining the chemical composition of the whole composite material with the aim that a Cu<100>--AlETM amorphous matrix contains ETMO<2> oxide precipitates with different volume fractions, preparing alloy raw materials with the ETM-O intermediate alloy, industrial pure ETM, Cu and Al as raw materials, and obtaining alloy ingots with uniform components through a non-consumable electric arc melting method; and finally, regulating and controlling nucleation and growth kinetics of an oxide precipitated phase by changing a cooling speed range by utilizing a melt rapid quenching and copper mold suction casting technology, so as to finally obtain the amorphous matrix composite material. Nanometer oxide particles with different densities and sizes are dispersed and distributed on the obtained amorphous matrix composite material, and the precipitate / matrix interface bonding is good.

The invention provides an optical toughened glass. The glass comprises SiO2, CaO, MgO, Al2O3, Na2O, B2O3, K2O, BaO, MoO3, CdO, La2O3, Gd2O3, Y2O3 and Yb2O3. After expensive Ta2O5 is discarded, the glass having excellent glass stability, high refractive index and low chromatic dispersion is obtained through adopting the co-existence form of the La2O3, Gd2O3, Y2O3 and Yb2O3, MoO3 can reduce the generation amount of nickel sulfide stones, and MoO3 and CdO are mixed to inhibit smoke generated in the glass production process, so the safety in the glass production process is ensured, and the self-explosion possibility of the glass is reduced.

The present invention addresses the problem of providing a protein-containing food having a smooth texture that is not rough on the tongue, in which the proteins do not develop a rough texture or agglutinate even when subjected to intense heat sterilization such as retort sterilization. The problem is solved by means of a protein agglutination-suppressing agent that contains welan gum.