33results about How to "Narrow size" patented technology

The present invention relates to a method and a device for removing a cover from a storage box that is closed using a lid-like cover attached thereto at the edges. For removal, the adhesive strength of the cover is reduced in the region of a few of the sealed edges and the cover is then removed by peeling it off the storage box, whereby the cover is peeled off by rolling it onto a roller.

The invention relates to a preparation method of narrow-distribution cellulose nanocrystalline, comprising the following steps of: (1) placing microcrystalline cellulose into volatile acid liquor, transferring to a hydrothermal kettle and reacting for 1-5h at 100-120 DEG C; (2) after naturally cooling the hydrothermal kettle, diluting a reaction product by using deionized water, removing supernatant liquor after standing for layering, adding a volatile alkali solution, regulating the pH value of the solution to 7, and then heating to obtain cellulose nanocrystalline dispersion liquor; and drying the dispersion liquor to obtain the cellulose nanocrystalline. The preparation method has the advantages of simple process, easiness for operation and no environmental pollution in the whole preparation process and is suitable for industrial scale production; and the prepared cellulose nanocrystalline has the advantages of small size, narrow distribution, easiness for controlling the size, large specific surface area and high reactivity and effectively avoids the problems of wide distribution, nonuniformity and the like of the particles of the cellulose nanocrystalline, thereby having wideapplication prospect.

The invention relates to a preparation method for a nano-sliver / cellulose nanocrystalline composite particle. The preparation method comprises the following steps of: (1) adding a cellulose raw material into an acid-mixed solution and reacting at the temperature of 50-90DEG C for 1-20 hours; after the reaction is ended, washing a reaction product with deionized water to neutral and obtaining aldehyde cellulose nanocrystalline; and (2) adding the aldehyde cellulose nanocrystalline into a silver nitrate solution; reacting at the temperature of 60-105DEG C for 10-60 minutes; and after naturally cooling, diluting a reaction product with the deionized water, centrifuging and then carrying out free drying or vacuum drying to obtain a nano-silver / CNC (Cellulose Nanocrystalline) composite material. The preparation method disclosed by the invention is simple and convenient in process, easy in operation and environment friendly and can be used for shortening the preparation period; the prepared CNC / nano-silver has the advantages of small size, easy adjustment, large specific area, firmness in combination of the CNC and the nano-silver, durable antibacterial effect, antibacterial and enhancing functions and broad application prospect.

A display device with narrowed frame border and a manufacturing method thereof are provided. The display device includes a backlight module, an optical film, and a display panel. The backlight module includes an outer frame and a light source module. The outer frame has a bottom plate and a sidewall connected to the bottom plate, and the light source module is disposed in the outer frame near the sidewall. The optical film is disposed on the backlight module and covers the light source module. One side of the optical film protrudes outside from the sidewall and is bent to attach a portion of the sidewall. The display panel is disposed on the optical film opposite to the backlight module.

A substrate structure and a manufacturing method thereof are provided. The substrate structure comprises a dielectric material layer, a conductive wiring layer, a metal core layer, and a conductive pillar layer. The conductive wiring layer is disposed on a surface of the dielectric material layer. The metal core layer having a metal part is disposed inside the dielectric material layer. The conductive pillar layer is disposed inside the dielectric material layer and between the metal core layer and the conductive wiring layer. The metal part has a first side and a second side opposite the first side. One of the first side and the second side is electrically connected to the conductive pillar layer. A width of the first side is different from a width of the second side.

The invention provides a green synthesis method of a cadmium selenide nano-crystal with controllable shape and size. Natural vegetable oil is taken as a solvent and a ligand, different selenium sources and cadmium oxide are taken as precursors, the nano-crystal can be obtained by adjusting the ratio between the ligand and the precursors, with the size adjustable from 2nm to 13nm and the ratio between the length and diameter from 1 to 10; the nano-crystal has high degree of crystallinity, fluorescence quantum efficiency is 15 percent to 40 percent and fluorescence emission spectrum is 490nm to660nm. The obtained point nano-crystal can maintain stable sphalerite structure under high temperature, with narrow size distribution, wherein, fwhm equals to 27 plus or minus 1nm. The obtained rod-shaped or multibranched (two-branch, three-branch, four-branch) nano-crystal has quite narrow size distribution, and wide fluorescence half band width, wherein, fwhm equals to 23 plus or minus 1nm. Theobtained arc-shaped and random rod-shape nano-crystal has different radiuses of curvature, wurtzite, sphalerite, twin crystal and dislocation coexist in the same nano single crystal.

The invention relates to a high-temperature brazing filler as well as a preparation method and a brazing process thereof, in particular to a high-temperature Ti-Zr-based brazing filler for a TiAl-based alloy as well as a preparation method and a brazing process of the high-temperature Ti-Zr-based brazing filler, and solves the problems that after a conventional brazing filler is adopted for brazing, the joint mechanical properties and the high-temperature properties are poor, the brazing filler melting point is low, as well as the brazing filler preparation process and the brazing process are complex. The high-temperature brazing filler provided by the invention comprises the following raw materials in percentage by weight: 10.0-40.0% of Zr, 10-30% of Fe, 10-30% of Mn, 0-5% of one or more of Al, B, Co, Cr, Mg, Ag, Nb and Zn, and the balance of Ti. The preparation method comprises the following steps: 1, weighing raw materials; 2, loading melting equipment with the raw materials, carrying out vacuum pumping, injecting argon gas, carrying out melting for several times, and cooling; and 3, subjecting a mother alloy obtained after the melting to quenching and melt spinning, so as to obtain the high-temperature brazing filler. Then, a brazing filler foil obtained after the quenching is adopted for brazing according to the brazing process of which the temperature and the cycle reach 1100-1250 DEG C and 0-120 min correspondingly. Compared with the conventional brazing filler, the prepared high-temperature brazing filler has the advantages that the melting point is high, the wettability is high, the mechanical properties are excellent, as well as the brazing filler preparation process and the brazing process are simple.

The invention relates to a field of lithium ion battery designing, and discloses a packaging method of a lithium ion battery, and a lithium ion battery. The lithium ion battery comprises a battery core, an aluminum-plastic film, electrolyte, an anode lead, and a cathode lead. An independent battery core chamber and an independent air sac chamber are formed in an aluminum-plastic film housing; the battery core chamber is sealed, and the air sac is provided with pores; the battery core and the electrolyte are sealed in the battery core chamber; the anode lead and the cathode lead are fixed on one end of the battery core, and are respectively connected to an anode sheet and a cathode sheet in the battery core; lead gum outer surface layers on the anode lead and the cathode lead are hot-melted and combined with the aluminum-plastic film housing; the ends of the anode lead and the cathode lead which are connected to the battery core are sealed in the battery core chamber, and other ends protrude on an end of the battery core chamber; the air sac is positioned on the end opposite to the anode lead and the cathode lead. With the structure provided by the invention, cost of the aluminum-plastic film can be saved, production efficiency can be improved, and electrical properties of the lithium battery product can be improved.

The invention relates to high-temperature brazing filler metal and a preparation method and brazing technology of the high-temperature brazing filler metal, in particular to high-temperature Ti-based brazing filler metal for brazing of a TiAl-based alloy and a preparation method and brazing technology of the high-temperature Ti-based brazing filler metal. The problems that in existing brazing filler metal, postwelding connector mechanical performance and high-temperature performance are poor, the brazing filler metal melting point is low, and brazing filler metal preparation and the brazing technology are complex are solved. The brazing filler metal is prepared from, by weight percent, 10%-30% of Fe, 10%-30% of Mn, 0-5% of one or two or more kinds of Al, B, Co, Cr, Mg, Ag, Nb and Zn and the balance Ti. The preparation method comprises the steps that firstly, raw materials are weighed; secondly, the raw materials are contained in smelting equipment to be vacuumized, argon filling is carried out, then smelting is carried out many times, and cooling is carried out; and thirdly, a mother alloy obtained after smelting is subjected to quick cooling and melt-spinning, and the brazing filler metal is obtained. A quickly-cooled brazing filler metal foil band is subjected to brazing according to the brazing technology with the temperature ranging from 1,100 DEG C to 1,250 DEG C and the time ranging from 0 min to 120 min. Compared with existing brazing filler metal, the prepared brazing filler metal has the high melting point and excellent wettability and mechanical performance; and brazing filler metal preparation and the brazing technology are simple.

A scan lens and an interferometric measuring device using the scan lens are disclosed. The scan lens includes a lens set, a beam splitter, and a reflector disposed between the lens set and the beam splitter. During application the applied light beam passes through the lens set of the interferometric measuring device to fall upon the beam splitter where the light beam that passes through the beam splitter is defined as a first light beam and the light beam that is reflected by the beam splitter is defined as a second light beam. The first light beam is projected onto the test object. The second light beam is projected onto the reflector. The second light beam reflected by the reflector and the first light beam reflected or scattered by the test object will interfere with each other to form interference patterns for measuring the test object.

The invention discloses an OLED display panel with a narrow frame structure, which includes a display area and a frame area located around the display area, one of the opposite frames in the frame area is provided with metal wiring, and the cathode in the display area is connected to the metal through the anode. Wire connection, the back of the display area is provided with a conductive tape, and the two ends of the conductive tape are respectively electrically connected to the two ends of the metal wires in the two opposite frames after being bent. In the present invention, a conductive tape is pasted on the back of the OLED display panel, and the conductive tape is bent from the left and right sides of the display panel to one of the opposite frames, and the conductive tape is respectively connected to the two ends of the metal wiring on the other opposite frame. The conductive tape replaces the metal wiring on one of the opposite frames, making the size of the frame area narrower and increasing the size of the display area.

The invention relates to a spheroidal gold particle and a step-by-step rapid synthesis method thereof. The method includes the following steps: soluble gold salt, surfactant and reducer are prepared into mixed solution, and gold particle seeds are added in the process of rapid agitation, and thereby react to grow into spheroidal gold particles, the grain size of which is 5nm to 100nm; the surfactant is the mixed surfactant of cetyltrimethylammonium bromide or cetyltrimethylammonium chloride and cetyltrimethylammonium bromide, the reducer is ascorbic acid, and the gold particle seeds are spheroidal gold particles, the grain size of which is 2nm to 60nm. The gold particle seeds can be monocrystalline or polycrystalline, and the synthesized spheroidal gold particles have the same crystal form as the gold particle seeds. Since the invention adopts the surfactant and the reducer and the gold particle seeds are added in the process of rapid agitation, reaction is rapid enough, consequently, the gold salt can rapidly and uniformly grow on the surfaces of the gold particle seeds, and the obtained spheroidal gold particles is narrow in grain size and has a good degree of sphericity.

The present invention relates to a method for preparing surface-functionalized cellulose nanospheres, which comprises (1) adding cellulosic fibers to the alkali liquor, swelling, filtering the solution, washing the product with water for several times until pH is 7, and drying to constant weight; (2) then adding the above product into mixed acid for fully infiltrating, reacting the above solution under stirring for 2-10 hours at 60-90 DEG C, naturally cooling the reaction products, adding an alkali solution until the pH of the solution is adjusted to 7 to obtain a dispersion liquid of cellulose nanospheres, then centrifuging the dispersion liquid, washing with water for three times, carrying out ultrasonic treatment, and then carrying out freeze drying to constant weight to obtain a cellulose nanospheres. The preparation method has advantages of low raw material cost, simple preparation process and mild preparation conditions; the surfaces of the cellulose nanospheres have functional groups, so that thermal stability and hydrophobicity are improved, self-aggregation is reduced, dispersion is easy, size is small, distribution is narrow, control is easy, specific surface area is large, reactivity is high and etc.