107results about How to "Avoid oxygen" patented technology

The invention discloses a three-dimensional (3D) printer, the 3D printer comprises an X-Y working platform, spray heads installed on the X-Y working platform, light-emitting diode (LED) ultraviolet (UV) light sources, moving supporting frames, a base, fixed supporting frames, a supporting platform and UV resin material-feeding units, wherein the fixed supporting frames and the supporting platform are installed on the base, and the spray heads are connected with the UV resin material-feeding units. Through use of the 3D printer, one-way single-layer printing and one-way multi-layer printing can be carried out, multi-material printing, color printing, coating printing and other effects can be realized, and the printing efficiency is improved by times compared with that of the traditional 3D printers.

An surface treatment apparatus of a substrate can clean a substrate surface in the air without employing a vacuum apparatus, and can remove a natural oxide film or an organic material, such as BTA, from the substrate surface without resorting to plasma cleaning. The surface treatment apparatus includes: an inert gas supply section for supplying an inert gas to the whole or part of a substrate surface to form an oxygen-blocking zone; a heating section for keeping the substrate surface at a predetermined temperature; and a cleaning gas supply section for supplying a cleaning gas to the oxygen-blocking zone to clean the substrate surface.

The invention discloses a method for smelting high-grade non-oriented silicon steel with excellent magnetism. The method comprises the following steps of: 1) smelting, namely smelting the following chemical components: less than or equal to 0.005 weight percent of C, 2.6 to 3.4 weight percent of Si, 0.2 to 0.5 weight percent of Mn, less than or equal to 0.2 weight percent of P, less than or equal to 0.005 weight percent of S, 0.3 to 1.6 weight percent of Al, less than or equal to 0.005 weight percent of N, less than or equal to 0.005 weight percent of O, less than or equal to 0.0015 weight percent of Ti, and the balance of Fe and inevitable inclusions, and modifying ladle top slag in the tapping process of a converter so as to ensure that the ladle top slag comprises 30 to 37 weight percent of CaO, 7 to 20 weight percent of SiO2, 35 to 45 weight percent of Al2O3, 5 to 9 weight percent of MgO, and 0.6 to 2.6 weight percent of T.Fe+MnO when the Ruhrstahl-Heraeus (RH) refining treatment begins; 2) performing RH refining, namely deoxidizing by using ferrosilicon when the decarburization of the RH refining is finished, wherein the adding speed of the ferrosilicon is less than or equal to 12.5kg/ton/min; and 3) adding 0.5 to 2.0 kg of calcium alloy into each ton of molten steel for the denaturation control of inclusions after the deoxidization and alloying are performed through the RH refining.

Disclosed are a flexible display apparatus and a method for producing the same. The flexible display apparatus includes a flexible substrate; a planarization layer which has an area smaller than an area of the flexible substrate and is formed on the flexible substrate; a display device which is formed on the planarization layer; and a protective layer which is provided on the flexible substrate to cover both the planarization layer and the display device.

A sealing structure is provided without irradiating a pixel portion of a light emitting element by heat or UV light. By the sealing structure, the reliability is enhanced by blocking out oxygen and moisture, and preventing the deterioration of the light emitting element. The sealing structure in which a whole surface of the pixel portion is covered with a sealing material and which has an excellent sealing property is manufactured without being exposed to heat or UV light. In this case, a catalyst for curing a sealing material is formed as a film on a substrate, and a sealing material for covering a pixel portion is applied to the other substrate. Then, the both substrates are bonded together.

The invention relates to the technical field of fuel cells, and provides a high-performance bipolar plate with a graphene-reinforced surface for a fuel cell and a preparation method of the high-performance bipolar plate. A titanium bipolar plate is adopted as a substrate, and by adopting magnetron sputtering apparatus and method, a nickel layer or nickel-chromium layer, a first gold layer, a first graphene layer, a second gold layer and a second graphene layer are sequentially deposited on the surface of the self-sputtered and cleaned titanium bipolar plate substrate. The nickel layer or nickel-chromium layer, the first gold layer and the second gold layer which are few in pore defects and uniform in thickness can be prepared; the binding force between the first gold layer and the titanium bipolar plate substrate is improved by using the nickel layer or nickel-chromium layer, so that the problems of reducing the total contact resistance and improving the corrosion resistance of the titanium bipolar plate in the using process are solved; oxygen around the nickel layer or nickel-chromium layer, the titanium bipolar plate substrate and a cathode can be isolated by using the gold layer, so that oxidation of the nickel layer or nickel-chromium layer and the titanium bipolar plate substrate is avoided; and by adopting the graphene layers, the surfaces of the gold layers have high hydrophobicity and the separated carbon particles in the preparation process of graphene have a good pore blocking effect.

The invention provides an efficient anti-sticking UV release paint applied to a pressure-sensitive adhesive as well as preparation and application of the efficient anti-sticking UV release paint. The paint comprises the following ingredients in percentage by weight: 3-8% of a photoinitiator, 3-5% of an auxiliary initiator, 20-40% of an active diluent, 15-45% of organic silicon-acrylic resin and 25-45% of non-silicon acrylic resin. The system of free radicals and the cationic composite initiator is adopted, a sensitization effect realized through the synergistic effect of the free radicals and the cationic composite initiator better solves the problems of oxygen inhibition and slow curing caused by the single initiator, meanwhile, the photo-curing speed is high, the solubility is good, the absorption wavelength reaches 390 nm and the paint is an efficient, energy-saving and environment-friendly photo-cured release paint.

The invention discloses a preparation method of a high-performance copper wire. The preparation method includes the following steps that S1, electrolytic copper and charcoal are added in a smelting furnace, copper liquid is obtained, and inert gas is introduced; S2, a copper and chromium intermediate alloy is added into the copper liquid, then zirconium wires, magnesium bars, pure tellurium, pure arsenic and rare earth metal lanthanum and yttrium are added into the copper liquid, and copper alloy melt is obtained; S3, it is detected that components of the copper alloy melt include 0.45%-0.55% of Cr, 0.3%-0.4% of Zr, 0.1%-0.15% of Te, 0.07%-0.12% of La, 0.05%-0.09% of Y, 0.02%-0.04% of As, smaller than or equal to 0.10% of Mg and the balance Cu; and S4, vacuum up-drawing is performed in the copper alloy melt, and after continuous extruding, the high-performance copper wire is obtained. The electrical conductivity of the copper wire prepared through the preparation method reaches 95% IACS or above, and the tensile strength also reaches 550 MPa or above.

A preparation method of pulverized fuel ash containing inhibition slurry for controlling fire in a coal field comprises the step of adding pulverized fuel ash, aluminium phosphate, magnesium chloride, sodium carboxymethylcellulose, sodium silicate and sodium bentonite material in water to prepare high-inhibition and high-temperature-resistance pulverized fuel ash thickening slurry. The prepared thickening slurry is conveyed to a burning coal seam or a coal fracture through a grouting pipeline by a high-pressure screw pump. After a period of time, the inhibition slurry can be thickened and solidified into a solid form. The inhibition slurry can resist high temperature of above 1,000 DEG C, can form a hard blocky structure after evaporation of water, and can closely cover the coal and block the fracture. The pulverized fuel ash containing inhibition slurry is low in cost, safe and environment-friendly, and remarkable in control effect on coal spontaneous combustion fire in the coal field, and has a good application prospect.

The invention discloses an aquatic product transportation system which comprises a box body, a first-stage purifying pond, a second-stage purifying pond, a dissolved oxygen pond, an oxygen cylinder, a fresh water pond, a first water pump and a second water pump. The upper portion of the box body is provided with a box cover. The middle portion of one side wall of the box body is provided with a water outlet. A water pipe is horizontally placed on the bottom surface inside the box body. The box body is communicated with the first-stage purifying pond, the second-stage purifying pond and the dissolved oxygen pond in sequence through the water outlet. The dissolved oxygen pond is communicated with the oxygen cylinder and the first water pump. The fresh water pond is communicated with the second water pump. A water outlet pipe of the first water pump and a water outlet pipe of the second water pump are both communicated with the water pipe which is horizontally placed on the bottom surface inside the box body. Packing is fixed to a stainless steel frame of the second-stage purifying pond. By means of the aquatic product transportation system, cyclic utilization of waste water is realized, the consumption of fresh water is reduced, and the aquatic product transportation system has the advantages that water resources are saved, water containing equipment is small, and the water carrying capacity is low; the situation that oxygen is injected into the box body is avoided, the pressure of the fresh water injected into the box body is reduced remarkably, and panic among aquatic organisms in the box body is avoided.

The invention relates to diacid amine salt, yellowing-resistant polyamide resin and a preparation method of the yellowing-resistant polyamide resin. The dibasic acid amine salt provided by the invention is prepared from deoxygenated water, and has the advantages of high stability, light color and no yellowing. The polyamide resin provided by the invention has good yellowing resistance, and the method effectively inhibits the generation of by-products through anaerobic operation treatment, thereby improving the yellowing resistance of the polyamide material under the conditions of high temperature and illumination. The polyamide resin is lasting in yellowing resistance, the preparation method is low in cost and convenient to operate, existing equipment does not need to be adjusted and modified too much, and the method is suitable for the existing polyamide production process.

An organic light emitting device, and a method of fabricating the same, has a cathode electrode that can prevent oxygen or moisture from infiltrating. The organic light emitting device of the present invention has a lower electrode, an organic thin film layer and an upper electrode successively formed on the substrate. The upper electrode has at least two-layered thin films having different grain density and grain size. A lower film of the at least two-layered thin films of the upper electrode has a first Al thin film having a lower grain density and larger grain size than an upper of the at least two-layered thin films. The upper film has a second Al thin film having relatively higher grain density and smaller grain size than the first Al thin film.

A semiconductor device manufacturing method which achieves a contact of a low resistivity is provided.

In a state where a first metal layer in contact with a semiconductor is covered with a second metal layer for preventing oxidation, only the first metal layer is silicided to form a silicide layer with no oxygen mixed therein. As a material of the first metal layer, a metal having a work function difference of a predetermined value from the semiconductor is used. As a material of the second metal layer, a metal which does not react with the first metal layer at an annealing temperature is used.

The invention discloses organic silicon modified cationic light cured alicyclic epoxy resin paint and application thereof. The paint comprises the following components: 70 to 100 parts of alicyclic epoxy prepolymer, 1 to 25 parts of organic silicon modified alicyclic epoxy monomer, 0 to 15 parts of a reactive diluent, 0.2 to 1 part of a defoamer, 0.3 to 1 part of a flatting agent, and 0.1 to 2.5 parts of a cationic photoinitiator. The paint has the advantages that acrylic ester is copolymerized into alicyclic epoxy resin prepolymer, and flexible groups are led into the alicyclic epoxy resin prepolymer, so that the toughness is improved; in addition, the organic silicon modified alicyclic epoxy monomer is added, the surface performance and the water and stain resistance of the paint are improved. The paint can be rapidly crosslinked after being irradiated by ultraviolet light, and is energy-saving and efficient. The cured paint has excellent adhesive force and water and stain resistance.

The invention discloses a photocuring micro-fluidic chip based on an elastic support body and a preparation method and application thereof, the photocuring micro-fluidic chip comprises a channel structure layer and a sealing layer, the channel structure layer comprises a photocuring layer containing a channel structure and an elastic support body used for supporting the photocuring layer; the elastic support body and the photocuring layer are connected through covalent bonding or adhesion; the photocuring layer containing the channel structure is formed by covering a mold with a photocuring raw material and curing after light irradiation; the elastic support body comprises a body layer and a selectively added connecting layer. The photocuring micro-fluidic chip has no special limitation on photocuring materials and mold types so that the whole chip processing process can be carried out at room temperature in an atmospheric environment; in addition, punching, sealing, cutting, external pipeline connection and the like of the chip are simpler, more convenient and quicker, so that the chip is suitable for carrying out design and development of a micro-fluidic chip prototype in a conventional laboratory, and also has good batch production potential.

The invention discloses a modified benzophenone photo-initiator represented by a formula (I). In the formula, R is polyol residue, R1 is hydrogen or methyl or ethyl or other small-molecular organic groups. According to the novel benzophenone photo-initiator, polyol is adopted as a connection agent connecting a plurality of benzophenone molecules in a molecule, such that the photo-initiator with relatively large molecular weight and with a star or spherical structure is obtained. With the star or spherical structure, large molecular weight and a large number of photoactive groups in the molecule, the photo-initiator provided by the invention has high initiation efficiency. Defects of easy migration, high odor and oxygen polymerization inhibition of single small-molecular benzophenone photo-initiators can be effectively solved. With the excellent comprehensive performances, the photo-initiator can be put in an important position in future light curing market.