42results about How to "Controllable stability" patented technology

The invention provides a Micro LED color display device. A green-color conversion layer (G) is simulated to give out light so as to substitute a green LED by employing a short-wavelength second blue LED (B2) in a green sub-pixel (P2), the second blue LED (B2) is relatively stable, the chromaticity of green color can be controlled by controlling accuracy of a coating thickness of the green-color conversion layer (G), the accuracy control of the coating thickness is easier than specification control of the green LED, the chromaticity uniformity can be relatively good, the stability of the green color is easy to control, and the display quality is improved.

The invention relates to a packaging method for a light-emitting manner of a LED (Light-Emitting Diode) with a specific wavelength; raw materials such as A glue, B glue, CP glue, characteristic fluorescent powder, an LED (Light-Emitting Diode) blue light chip with a specific wavelength and a characteristic pigment are used as raw materials; the encapsulating method comprises the following specific steps of: 1. mixing the A glue, the B glue, the CP glue, the characteristic fluorescent powder to form fluorescent glue; 2. manufacturing the fluorescent glue and the LED (Light-Emitting Diode) blue light chip with the specific wavelength into a white light LED (Light-Emitting Diode) light source base frame; 3. uniformly mixing the A glue, the B glue and the characteristic pigment to form expoxy glue; and 4. encapsulating the (Light-Emitting Diode) light source base frame by using the expoxy glue, and forming a characteristic LED (Light-Emitting Diode) with the specific wavelength after white lights pass through the expoxy glue. According to the encapsulating method, the LED (Light-Emitting Diode) with any wavelength can be manufactured by adding different color chips, the emitted light source is stable and the luminance is very high; the LED (Light-Emitting Diode) is convenient to manufacture; the manufacturing range of light colors is not limited; meanwhile, the encapsulating method is simpler and more convenient and has low cost; and the production cycle of the product is also very short.

The invention discloses an aluminum oxide polishing powder and a production method thereof. The aluminum oxide polishing powder is characterized in that a D50 particle size is smaller than 2.0 microns and satisfies that D10 is no less than 0.5 times of D50, D90 is no more than 2 times of D50 and D100 is no less than 3 times of D50. The preparation method comprises the following steps of pulping raw materials of alpha-aluminum oxide with water, carrying out classification and obtaining a product. The aluminum oxide polishing powder has the advantages of small median particle diameter, narrow granularity distribution range, easy control of the polishing accuracy stability and small fluctuation of the product quality, can be used for accurate polishing processing of electronic product components including glasses for liquid crystal display screens, flat plane displays, optical elements, ultrathin glass substrates and glass magnetic discs and can also be used for preparing aluminum oxide polishing solution for polishing chemical machinery.

The invention discloses a method for recovering titanium dioxide in an invalid denitrification catalyst, which includes the following steps: (1) Grinding, grinding the invalid out-of-stock catalyst to a powder state and placing it in an open container, adding a proper amount of distilled water dropwise into the open container Prevent bottom formation; (2) Acid hydrolysis, add concentrated sulfuric acid with a mass fraction of 98% into an open container, heat the open container to dissolve the powder, keep stirring during the heating process to mix the solid and liquid evenly, when the open container Stop heating when the solution turns brown, and cool to ≤30°C to obtain titanium liquid; (3), neutralize, add a lime milk solution with a mass fraction of 50%‑80% and an active calcium content of 80% to the titanium liquid drop by drop During the process, shake well while adding dropwise, control the temperature of the titanium solution to ≤70°C, and cool to room temperature after fully reacting; (4) Concentrate and hydrolyze, concentrate the neutralized titanium solution to 195‑205g / l, add seed crystals and heat Hydrolysis; (5), filtering and rinsing; (6), drying and calcination.

The invention relates to the technical field of geotechnical engineering, and discloses a construction method for a rockfall retaining structure on a slope, which adopts a double-layer cement blanket, a profiled steel support and an anchor rod to form a retaining wall structure for reinforcing piles and piles, replacing traditional steel bars. The concrete retaining wall structure uses a single-layer cement blanket, a horizontal fixed frame and a vertical fixed frame to form the concrete construction formwork of the retaining plate, and the concrete construction formwork of the corresponding part of the reinforcement pile on the ground, replacing the traditional construction formwork. The construction method proposed by the invention has the advantages of simple operation, high construction efficiency, environmental protection and low safety risk, greatly reduces the number of construction personnel entering and leaving the site, reduces the demand for concrete and the curing time of concrete pouring, and controls the construction cost of the blocking structure. Conducive to popularization and application, especially suitable for high and cold plateau slope environment.

The invention provides an acrylic resin retanning agent, which is obtained by polymerization of the following raw materials in water: crylic acid or methacrylic acid; methacryloyloxyethyl trimethyl ammonium chloride; acetoacetate ethyl methacrylate; chain regulator; catalytic agent and initiator. The invention also provides a preparation method of the acrylic resin retanning agent. According to the method, polymerization of acrylic monomers can be initiated at low temperature, so that the stability of a reaction system in a feeding period is easy to control, the reaction is stable, the energy consumption can be saved, and the green production is favored. The acrylic resin retanning agent provided by the invention has favorable filling performance and convergence performance, the compactibility of hide fiber can be improved, the color loss can be avoided, the absorption of dye and fatliquor is favored, the absorption rate is improved, the waste water emission is reduced, and the effects of dyeing and fatliquoring are improved.

The invention discloses a compaction-type sand gravel filling device and a construction method. The compaction-type sand gravel filling device comprises two tracks, an adjustment device, a traction rope, a traction device and a sand gravel filling box. The adjustment device comprises an adjustment frame, a rotary rod and an adjustment rod. The sand gravel filling box comprises a first mounting support, a second mounting support, a feeding part, a buffering part and a discharging part. The construction method comprises the steps of a, digging of a sand gravel filling pit; b, arrangement of thetracks; c, arrangement of the adjustment device; d, arrangement of the traction device; e, hoisting and placing of the sand gravel filling box; f, sand gravel filling; g, repeating of the step e and the step f; and h, compaction of a sand gravel layer. By adoption of the compaction-type sand gravel filling device and the construction method, the sand gravel filling pit can be orderly filled with sand gravels in one direction, so that the structure of the sand gravel filling pit is prevented from being damaged; the construction difficulty is lowered, and the construction quality of an ecological retaining wall is improved; and meanwhile, the sand gravel layer can be laid rapidly by only one person, so that the labor cost is reduced, and the construction process of the whole ecological retaining wall is shortened.

The invention discloses a preparing method of a quick-frozen squid coated-powder product, and belongs to the field of aquatic product processing and storage. The product prepared by the method is manufactured through the steps of using squids as raw materials; performing pretreatment such as unfreezing, head removing and internal organ removing on the raw materials; then performing soaking, cutting, seasoning, swabbing, powder coating, frying, air cooling, quick-freezing, packaging and freezing preservation. The product is firstly fried and is then quick-frozen, so that compared with products of only coated-powder freezing in the prior art, the product provided by the invention can be more conveniently and directly eaten by consumers. After the deodorization treatment by seasoning materials such as spice, the product is more suitable for being eaten by the consumers. The product adopts ultra-low temperature quick-freezing, so that the moisture can be fast locked. Compared with the traditional frozen coated-powder squid product, the quick-frozen squid coated-powder product has the advantages that the product is crisp at the outside and is soft at the inside; the taste is delicious; the nutritional value is higher.

The invention discloses glass fiber reinforced plastic round pipe double-head pultrusion winding equipment, which comprises a rack, round pipe molds, a lifting mechanism set on one side of the rack to adjust the vertical position of the round pipe molds, heating plates and core rods arranged on the round pipe molds, two fixation mechanisms disposed at the other side of the rack for fixing the core rods and two winding mechanisms mounted on the rack and positioned between the lifting mechanism and the fixation mechanisms. The round pipe molds are arranged on the lifting mechanism. One ends of the core rods are connected to the round pipe molds, and the other ends are connected to the fixation mechanisms. The invention has the advantage that: the round pipe molds and the core rod fixation mechanisms are arranged on the same rack, thus being convenient for mold calibration at an earlier production stage and easier to control product eccentricity stability. The double-head winding mechanisms are disposed on the same rack, and meanwhile the independence of control is retained, so that the production efficiency is improved, the product rejection rate is reduced, and no additional control difficulty is added.