11results about How to "Inhibit devitrification" patented technology

The invention discloses a hydrophilic self-cleaning glaze which comprises the following components in percentage by mass: 75-95% of hydrophilic frit and 5-25% of kaolin, the hydrophilic frit comprises the following components in percentage by mass: 2-4% of boric acid, 5-9% of lithium carbonate, 30-40% of wollastonite, 9-16% of calcined talc, 10-20% of kaolin, 13-22% of quartz and 8-12% of aluminum oxide. According to the hydrophilic self-cleaning glaze provided by the invention, on the premise of reducing the production cost, excellent and lasting self-cleaning performance can be realized, and the technical problem of poor timeliness of self-cleaning performance in the prior art is solved.

The invention discloses a low-dielectric low-loss high-strength borosilicate glass ceramic composite material and a preparation method thereof, and belongs to the technical field of borosilicate glass ceramic composites.The low-dielectric low-loss high-strength borosilicate glass ceramic composite material is prepared from, by weight, 70% of low-alkali borosilicate glass ceramics with the low borosilicate ratio, 29% of Al2O3 and 1% of Bi2O3. The preparation method comprises the following steps: preparing low-alkali borosilicate glass ceramics with a high borosilicate ratio, melting the low-alkali borosilicate glass ceramics with the high borosilicate ratio and amorphous SiO2 at a set temperature to obtain the required low-alkali borosilicate glass ceramics with the low borosilicate ratio, and finally mixing and ball-milling the crushed and ground low-alkali borosilicate glass ceramics with Al2O3 and Bi2O3 to obtain the low-alkali borosilicate glass ceramics with the low borosilicate ratio. And finally, the borosilicate glass ceramic composite material is sintered at the temperature of 880-900 DEG C. The borosilicate microcrystalline glass ceramic composite material is low in dielectric, low in loss and high in strength.

The invention discloses an estradiol valerate sugar-coated tablet and a preparation method thereof. The estradiol valerate sugar-coated tablet sequentially comprises a tablet core, a powder coating layer, a first sugar coating layer, a coloring layer and a second sugar coating layer from inside to outside, the tablet core contains estradiol valerate; the powder coating layer is prepared from the following components in parts by weight: 1.7 to 3.7 parts of polyethylene glycol 6000, 25 to 35 parts of cane sugar, 0.1 to 0.4 part of povidone K90, 10 to 18 parts of calcium carbonate and 4 to 10 parts of talcum powder. According to the invention, crystallization of cane sugar is effectively inhibited, the surface of a powder coating layer is finer and smoother, the undesirable phenomenon of tablet edge cracking is avoided, and the quality defects of uneven color, color fading and the like caused by moisture absorption are also avoided.

The application belongs to the technical field of pharmaceutical preparations, and particularly relates to a mononitrate isosorbide oral dissolving film and a preparation method thereof. The mononitrate isosorbide oral dissolving film preparation is composed of a drug-containing layer and isolation layers which are compounded on the upper and lower surfaces of the drug-containing layer. The drug-containing layer comprises the following raw materials in percentage by mass: cyclodextrin-encapsulated mononitrate isosorbide 10-60%, film-forming material 20-80%, plasticizer 0-20% and auxiliary material 0-10%. The isolation layer comprises the following raw materials in percentage by mass: film-forming material 70-100%, plasticizer 0-30% and auxiliary material 0-10%. The mononitrate isosorbide oral dissolving film prepared by the application has the advantages of smooth appearance, good taste, uniform drug content, rapid dissolution under the action of saliva after entering the mouth, and further release and absorption, which greatly improves the drug administration compliance and solves the problem of surface crystallization of mononitrate isosorbide after long-term storage.

The present invention belongs to the technical field of ceramic materials, specifically a bright hot-bent integrated rock slab basin and its manufacturing process. The present invention adopts a double-layer glazing method, firstly applying a layer of glaze with high aluminum ion content on the blank, and then applying a layer of glaze with high sodium and potassium ion content after it is dried, wherein the aluminum ion content in the glaze is regulated by adding sillimanite, and the sodium and potassium ion content is regulated by adding sodium silicate, and an aluminum ion glaze layer and a sodium and potassium ion glaze layer are obtained respectively, and the aluminum ion glaze layer is used to prevent the sodium and potassium ions from diffusing into the blank. In addition, the sodium and potassium ion layer can also effectively prevent the crystallization of aluminum ions, thereby developing a bright hot-bent integrated rock slab basin that can effectively control the crystallization of aluminum ions and limit the excessive diffusion of sodium and potassium ions.

The invention discloses a single-side overflow plate glass former and a plate glass forming system in the technical field of plate glass production. The single-side overflow plate glass former comprises a seat body, the material receiving hole is formed in one transverse end of the seat body and extends in the vertical direction; the overflow groove is formed in the other transverse end of the seat body and extends in the longitudinal direction; the two overflow flanges are formed at the other transverse end of the base body and located at the two longitudinal ends of the overflow groove. The connecting flow channel is formed in the base body, the connecting flow channel comprises a pipe bending area, a transition area and an expansion area which are sequentially arranged in the transverse direction, the top end of the pipe bending area communicates with the bottom end of the material receiving hole, the transition area is fixedly connected between the pipe bending area and the expansion area, and the top end of the expansion area extends upwards in an inclined mode and communicates with the overflow groove after penetrating through the base body. According to the forming device, the residual stress of the glass plate can be uniformly distributed, the forming quality of the plate glass is improved, and the crystallization phenomenon of molten glass at the bottom of the forming device can be avoided.

A forming device (1) comprises: a forming body (2); and a guide member (10) provided at the lower part of both ends of the forming body (2) in the width direction. The forming body (2) has first and second inclined forming surfaces (6) for causing molten glass (Gm) to flow down. The guide member (10) comprises: a first inclined guide surface (12) for guiding a part of the molten glass (Gm) along the first inclined forming surface (6); a second inclined guide surface (12) for guiding a part of the molten glass (Gm) along the second inclined forming surface (6); and a resistance heating heater (15) for heating the molten glass (Gm) flowing down the first and second inclined guide surfaces (12) from the back side.

The invention provides a device and method for preventing platinum crystallization through a liquid crystal glass channel, and the device comprises a stirring tank, the side wall of the stirring tank is in through connection with an ingress pipe, the top end of the stirring tank is connected with a warming mechanism, a stirring mechanism is arranged in the warming mechanism in a through manner, the top of the stirring mechanism is connected with a motor, and the bottom of the stirring mechanism is arranged in the stirring tank. A supporting assembly is arranged on the top face of the warming mechanism, one side of the supporting assembly is connected to one side of the stirring mechanism, and a cleaning assembly is arranged on the top face of the warming mechanism. S1, feeding and stirring; s2, heating and guiding; s3, blocking and gathering materials; and S4, cleaning adsorbed impurities. The heating mechanism is arranged at the top of the stirring tank, so that platinum-containing impurities volatilized at high temperature in the stirring process are prevented from generating crystals due to sudden temperature drop along with heat radiation rising, the temperature is kept, small platinum crystal grains continue to rise until the small platinum crystal grains are intercepted by the material receiving assembly, crystallization is effectively inhibited from entering stirred molten glass, and the quality of the molten glass is improved. Therefore, the quality of a glass plate produced by the molten glass is improved.

The present application relates to the technical field of pharmaceutical preparation, and discloses a tulobuterol transdermal patch and a preparation method thereof.The tulobuterol transdermal patch comprises a backing layer, a paste layer and an anti-sticking layer, the paste layer comprises tulobuterol, pressure-sensitive adhesive and a penetration enhancer, the pressure-sensitive adhesive is a copolymer of 2-ethylhexyl acrylate, butyl acrylate, tertiary octyl acrylamide and methyl methacrylate, and the penetration enhancer contains propylene glycol and ethyl oleate.The present application adopts a new pressure-sensitive adhesive matrix, solves the problem that tulobuterol is easy to crystallize out in the patch, and enhances the transdermal effect of tulobuterol by using a penetration enhancer.The present application also discloses a preparation method of the tulobuterol transdermal patch, and the preparation process is improved, so that the loss of tulobuterol in the preparation process is reduced, the quality of the medicine is improved, and the cost is reduced.

The application belongs to the technical field of alkali-free glass fiber, and particularly relates to a modified low-boron and low-fluorine alkali-free glass fiber composition and a preparation method thereof. The modified low-boron and low-fluorine alkali-free glass fiber composition comprises the following components: SiO2, Al2O3, B2O3, CaO, MgO, Fe2O3, TiO2, F2, R2O, X2O3, Li2O and ZnO, wherein R2O is a mixture of K2O and Na2O, and X2O3 is a mixture of La2O3 and Y2O3. The application provides the modified low-boron and low-fluorine alkali-free glass fiber composition and the preparation method thereof. Through the introduction of rare earth elements and the synergistic effect of Li2O and B2O3 components, the problems of high viscosity, high crystallization risk and narrow temperature window of the existing low-boron and low-fluorine glass fiber are effectively solved while the content of boron and fluorine is greatly reduced, and the elastic modulus, breaking strength and water resistance of the glass fiber are significantly improved.

A method for manufacturing a glass article using a manufacturing apparatus (1) provided with: a kettle (7) in which an inlet (7C) for molten glass (Gm) is formed in a side wall part (7A) and the liquid level (L1) of the molten glass (Gm) inside is maintained lower than the upper end (7Ca) of the inlet (7C); and an inflow pipe section (11A) through which the molten glass (Gm) flows into the kettle (7) through the inflow port (7C), the inflow pipe section (11A) being provided with a flange section (11Aa) in which the electrode section (11x) and the cooling section (11y) are disposed, and the entire circumference of the inner surface side of the flange section (11Aa) being filled with the molten glass (Gm).