3145results about How to "Guaranteed yield" patented technology

A method for extracting and refining rutin comprises the following steps of (1) extraction: smashing raw materials, adding organic solvent into the smashed raw materials, performing extraction for 2-4 times, mixing extracting solution and concentrating the mixed extracting solution to thick extract with organic solvent content smaller than or equal to 5wt%; (2) alkali dissolution-acid sediment: adding alkaline water into the thick extract, then heating the mixture and stirring, filtering the heated mixture, regulating pH of alkaline filtrate to be 3-4, standing, filtering, drying to obtain a rutin pure product; and (3) mother liquor treatment: enabling obtained acid mother liquor to penetrate through a chromatographic column filled with resin, after the acid mother liquor penetrates through the chromatographic column, firstly using deionized water to wash a column bed until outflow liquid is neutral and colorless, introducing eluent into the chromatographic column and collecting eluate until outflow liquid is colorless, concentrating the eluate to the volume which is 5-10% of the original volume in a pressure reduction mode, cooling the concentrated eluate to achieve crystallization, filtering, using the deionized water to elute a filter cake, and drying the eluted filter cake to obtain a mother liquor rutin product. The prepared rutin is high in yield and purity, and the quality of the rutin reaches the international standard.

The invention relates to a method for mill processing of a high-purity and high-density molybdenum alloy target and belongs to the technical field of colored target preparation. The method comprises the technical steps of powder mixing, briquetting, presintering and reduction, vacuum treatment, shaping, hot isostatic pressing jacket processing, jacket charge, jacket degassing, sealing weld, hot isostatic pressing treatment, rolling with a jacket, and finish product processing. Due to the rolling with the jacket, the method solves the problems that active metal components are difficult to reduce after oxidized during deformation processing of a molybdenum alloy containing active metal, so that the deformation processing cannot be performed. Compared with a processing method of cutting into thin blanks with a large-thickness blank line, the processing cost can be lowered greatly, the processing cycle can be shortened greatly, and the production efficiency is improved.

The invention belongs to the technical field of food processing and in particular relates to a stuffed food forming method. The stuffed food forming method comprises the following steps: 1, allowing a wrapper receiving plate to be positioned at a wrapper receiving station of an annular rail, and conveying the wrapper to the wrapper receiving plate at the wrapper receiving station through a wrapper conveying device; 2, moving the wrapper receiving plate and a die assembly device to a stuffing injection station on the annular rail, and injecting the stuffing on the surface of the wrapper through a stuffing injection device; 3, mutually closing die assembly blocks which are positioned on the die assembly device below the wrapper receiving plate and are opposite to each other, coating and forming stuffed foods, and continuously keeping the two closed die assembly blocks be in the state; and 4, simultaneously moving the wrapper receiving plate and the die assembly device to a taken-out station on the annular rail, so that the wrapper receiving plate is opened, and the die assembly blocks which are always positioned in a closed state are separated. According to the die assembly device in the method, continuous pressing force can be provided for the stuffed foods in the processing process, the tightness on the joint part of the wrapper of the stuffed foods can be guaranteed, the wrapper is not open after being pressed for a long time, and the forming rate of the stuffed foods is guaranteed.

The invention discloses a white light LED. The white light LED comprises a substrate, an LED chip and a transmitting shell, wherein the bottom of the LED chip is fixed on the surface of the substrate; the upper part of the LED chip is sleeved by the transmitting shell; a quantum dot thin film is adhered to the inner surface of the transmitting shell; and encapsulation glue is filled between the transmitting shell and the substrate. The invention furthermore discloses a preparation method of the white light LED. According to the white light LED and the preparation method, the operation method is simple, the cost is low, and the thickness, morphology and ingredients of the quantum dot thin film can be flexibly controlled, so that the optical consistency and space color uniformity of the white light quantum dot LED are improved; and the quantum dot thin film is prepared on a batch produced curved surface die, but not directly dispensed on the LED chip, so that the rejection rate of the quantum dot LED products is effectively decreased and the preparation method is suitable for the large-scale production of white light quantum dot LEDs.

The invention discloses a preparation method for recovering high-purity yttrium europium from fluorescent powder scrap, comprising the following steps: 1) dissolving fluorescent powder; 2) carrying out filter pressing on dissolved feed liquid to obtain rough europium by a plate frame; 3) removing zinc and iron from feed liquid rich with yttrium and zinc by N235; 4) putting YCL3 into HB extracting agent for secondary edulcoration to obtain fluorescent-grade 4N-5N YCL3, dewatering, carbonizing and oxidizing; 5) putting prepared rough EU and HA-extracted rough EU into a reaction vessel, and slowly adding zinc power in batches; 6) after reducing, adjusting pH value by ammonium chloride and ammonia water in place to prepare europium hydroxide; 7) preparing a europium hydroxide solution with certain concentration and pH value, transmitting to an HB agent system for reaction; 8) firing after washing; and 9) dewatering, carbonizing and oxidizing for 3-5 hours at the high temperature of about 1000 DEG C to obtain fluorescent-grade europium oxide, smashing, screening and packaging in vacuum. The invention has the advantages of reasonable technology, strong maneuverability and strong competitiveness.

The invention discloses a microwave-assisted subcritical essential oil extracting method. The microwave-assisted subcritical essential oil extracting method includes the steps that fresh plant tissues are frozen and then are smashed; 1,1,1,2-tetrafluoroethane is used as an extraction solvent and is led into the smashed plant tissues to perform microwave extraction; during microwave extraction, the extraction temperature is controlled to be 8-12 DEG C, the extraction pressure is controlled to be 0.8-6 Mpa, the microwave frequency is controlled to be 300-2400 MHZ, and the power is controlled to be 200-1200w; after a liquid phase in the system is separated out and microwave extraction is completed, the 1,1,1,2-tetrafluoroethane is recovered from the liquid phase, and the rest of the liquid phase is an essential oil stock solution; the essential oil stock solution is subjected to molecular distillation to obtain essential oil. By the adoption of the microwave-assisted subcritical essential oil extracting method, the essential oil free of any residual solvent can be obtained at lower temperature, the effective ingredients of the essential oil are not destroyed, and the natural quality of the essential oil can be kept to the most degree.

A process for preparing zeolite with multi-class pore canal structure by zeolitizing diatomite features use of laminating technique and gas-solid crystal conversion technique. For the laminating technique, an electrostatic attraction is used to assemble the nano zeolite onto diatomite. For the gas-solid crystal conversion technique, the amorphous SiO2 is converted to zeolite without damage to the form and structure of diatomite. Its advantages are simple operation, high speed, rich macropores, environmentally friendly process and wide application range.

The invention relates to the technical field of ceramic tiles, and in particular relates to a wide-color-gamut inkjet glaze decorated ceramic floor tile and a production process thereof. A floor tile billet comprises the following components in parts by weight: 40-75 parts of a cooked porcelain material, 0-38 parts of porcelain stone, 20-30 parts of clay and 0-5 parts of a mineralizing agent; and a production method comprises the following steps: firstly performing conventional processes such as wet-process ball-milling, spray drying and dry-pressing molding on architectural ceramics to prepare a billet, by taking titanium series engobe as a ground glaze, combining engobe with a low-temperature ink-jet ink composition of interior wall tiles to perform inkjet decoration, and performing firing in a roller hearth kiln under the conditions that the firing temperature is 1030-1100 DEG C and the firing cycle is 35-60min to prepare a finished product, wherein the water absorption rate of the finished product is 0-3%, and the quality of the product can meet the national standard requirements. The wide-color-gamut inkjet glaze decorated ceramic floor tile disclosed by the invention has the beneficial effects that energy conservation and emission reduction can be achieved, and the firing temperature can be reduced by 50-100 DEG C compared with that of the same category of products; the technology bottleneck that titanium series opacified engobe can be yellowed when being applied in the floor tiles in a conventional high-temperature process can be effectively solved; and the color gamut range of an inkjet decorative layer of a glaze decorated ceramic tile can be significantly broadened.

The invention discloses a pair of antiskid rubber gloves and a processing method thereof. Each antiskid rubber glove comprises rubber latex forming a glove body and antiskid rubber latex forming an antiskid layer, wherein the antiskid rubber latex consists of natural rubber latex, sulfur, zinc oxide, an accelerator, an antioxidant and rubber particles. According to the antiskid rubber gloves disclosed by the invention, rubber particles are arranged on the outer surfaces of the gloves in a processing course of the gloves so as to increase the friction coefficient of the gloves, enhance the catching power of the gloves and largely improve the antiskid effect of the gloves; in addition, the gloves have no special requirement on production moulds and equipment and only the traditional production mould is needed in a production process, therefore the production input is low and the production cost of enterprises can be reduced greatly. The gloves processed with the processing method disclosed by the invention have the advantages of good antiskid effect, capability of solving the problem that defective holes possibly appear on the gloves caused by mould bumps in the production process and high yield; and the processing method disclosed by the invention has the advantage of simple operation.

The invention relates to a pressure sensor chip based on silicon direction bonding and silicon on insulator and a manufacturing method thereof, and belongs to the field of sensor chips. The invention is characterized in that a shallow slot and a gas port on a supporting silicon wafer are formed through anisotropy corrosion, and appropriate shallow slot depth obtained by controlling the corrosion time can realize over pressure protection of parts. A silicon direct bonding technology bonds the supporting wafer and a reversed SOI wafer, realizes a beam-membrane structure on the SOI after lapping and polishing to improve the sensitivity and linearity of the parts; manufactures force sensing resistance elements on the processed beam; adopts the oxidation buried layer of the SOI to solve insulation and isolation of the sensing elements and elastic elements; and improves the long-termed reliability and adaptability under high temperature of the parts. The SOP high-sensitivity pressure sensor chip based on the bonding technology has the advantages of controllable process, excellent repeatability and high finished product rate.

The invention provides an active organic light-emitting diode (OLED) display device and a manufacturing method thereof. The active OLED display device comprises a display area and a non-display area. The non-display area comprises a negative electrode power line, wherein an insulating layer is arranged on the negative electrode power line, a planarization layer further covers the insulating layer and extends to and covers the negative electrode power line, and a gradient included angle alpha formed by the planarization layer and the contact surface of the negative electrode power line is smaller than a gradient included angle beta formed by the insulating layer and the contact surface of the negative electrode power line, so transition is flatly and slowly formed from a negative electrode to the negative electrode power line, smoothness from the negative electrode to the contact area of the negative electrode power line is increased, and contact resistance is effectively reduced. The planarization layer covers a non-pixel area of a positive electrode, and the thickness of the planarization layer is larger than or equal to the sum of the thickness of the positive electrode, the thickness of an organic functional layer and the thickness of the negative electrode, so a pixel area can be protected against scratching, the rate of finished products of the display device is effectively guaranteed, a manufacturing process is simple, and the process is easy to achieve.