57results about How to "Combine tightly and evenly" patented technology

The invention provides a curved mirror reflector (2), which comprises a flat glass structure (6), a middle bonding layer (7) and a flat glass mirror (8), wherein the flat glass structure (6) and the flat glass mirror (8) are processed by non-edging and/or non-tempered common glass; the middle bonding layer (7) is located between the flat glass structure (6) and the flat glass mirror (8), and is bent and deformed under support of a mould through a mechanical manner, and the bent and deformed flat glass structure (6), the middle bonding layer (7) and the flat glass mirror (8) are solidified and bonded to a composite curved surface structure through a heating and/or normal-temperature solidification manner. The curved mirror reflector (2), provided by the invention, can be widely applied in all kinds of fields of solar thermal collection and focus and solar thermal power generation.

The invention discloses a method for preparing a magnesium diboride superconducting wire with graphene coated boron powder. The method comprises the steps of: 1, adding the spherical nano boron powder to graphene oxide solution, filtering after stirring uniformly to obtain filter residue and carrying out vacuum drying on the filter residue to obtain mixed powder; 2, carrying out heat treatment on the mixed powder to obtain the graphene coated boron powder; 3, after mixing the graphene coated boron powder with magnesium powder, grinding to obtain tubing precursor powder; 4, putting the tubing precursor powder into an Nb/Cu composite tube which is processed by acid pickling to obtain a tubing complex; 5, processing the tubing complex into a single-core wire; 6, processing into a multi-core wire by employing a bundle-drawing technology; and 7, carrying out phase-forming heat treatment, and cooling to room temperature with a furnace to obtain the magnesium diboride superconducting wire. According to the method disclosed by the invention, through adding the spherical boron powder to the graphene oxide solution, the single-layer graphene coated boron powder is realized; after the heat treatment, the graphene has no agglomeration and can be combined with the boron powder tightly and uniformly; and the phenomena of graphene contraction and nonuniformity in the traditional method are inhibited.

A manufacturing method of an touch screen electrode comprises the following steps: a layer of metal film is formed on a resistance layer of a transparent conductive strip or a plate by physical vapor phase deposition; an anti-corrosion layer with an electrode pattern is formed on the metal film; the electrode pattern is formed by using alkaline metal etching liquid for etching the metal film; and a non-function area of the resistance layer is isolated with the electrode and a function area by etching. An electrode metal layer of the touch screen electrode which is manufactured by the method is formed under the physical vapor phase state, the electrode metal layer and the transparent resistance layer form the even and close combination, the contact is very even, and the contact resistance is extremely small; in addition, the formed metal resistance rate of the electrode is at the magnitude order of 10 Omega/cm, an ACP manufacturing procedure can be used for producing the large-size touch screen, the reduced contact resistance and the improved uniformity can enhance the electrical properties of the touch screen, and the production yield is improved.

The invention discloses a preparation method for a graphene-coated niobium-aluminium superconductive wire material. According to the preparation method, aluminum powder is added to a graphene oxide solution to realize singe-layer graphene-coated aluminum powder; the graphene after being subjected to heat treatment is free of agglomeration and can be tightly and uniformly combined with aluminum powder; graphene is on the interface of the prepared graphene-coated aluminium powder, so that oxidization of the aluminum powder is avoided; by virtue of the preparation method, the conditions that a precursor is cracked easily at a high temperature and special requirement on heating equipment is required in the conventional rapid-heating and rapid-cooling processing also can be avoided; and the obtained superconductive wire material is uniform in ingredients and excellent in performance, so that the cost is effectively lowered and large-scale production can be facilitated.

A method for preparing basic glue blending agent in cation iron rosin includes steps of: using rosin and trimethylamine as main raw material, choosing an epoxy-containing monomer to react with the raw material to prepare the cation iron rosin ester, and after a certain condition, reacting to rosin emulsion. The invention can equally distribute a substance of low surface free energy on paper surface to form a liquid-proof film, the liquid-proof film can prevent or defer liquid permeation or diffusion to fiber, and make paper or cardboard with liquid (especially water and water solution) permeation and diffusion resistance.

The invention discloses a graphene-silicon composite material, a preparation method thereof, an electrode material and a battery and relates to the technical field of batteries so as to improve the structural stability of an electrode containing a silicon-based material, and therefore, the cycle performance of the battery is ensured. The preparation method of the graphene-silicon composite material comprises a step of mixing positively-charged silicon-based material dispersion liquid with a negatively-charged graphene-based material dispersion liquid such that a positively-charged silicon-based material and a negatively-charged graphene-based material are assembled together to obtain a graphene-silicon self-assembled material dispersion liquid, a step of drying the a graphene-silicon self-assembled material dispersion liquid by using spray drying to obtain a graphene-silicon self-assembled material, and a step of sintering the graphene-silicon self-assembled material in an inert environment to obtain the graphene-silicon composite material. The graphene-silicon composite material is prepared by the above preparation method. The graphene-silicon composite material provided by the invention is applied to the battery.

The invention provides a preparation method of a micro-nano dimensional graphene/lithium titanate composite negative electrode material. The preparation method includes the steps of (1) preparation of a graphene oxide/lithium acetate/titanium complex/glacial acetic acid/isopropyl alcohol mixed solution; (2) synthesis of a graphene oxide/lithium titanate compound precursor; and (3) thermal recovery treatment of the graphene oxide/lithium titanate compound precursor. The particle distribution of the graphene/lithium titanate composite negative electrode material is between 200nm and 5mum. Because the size of the prepared graphene is between nanometer and a few of microns, the size is small, the lithium ion of the material has a small diffusion distance, and the micro-nano dimensional graphene/lithium titanate composite negative electrode material has the good electrochemical property. The 1C capacity of the material is larger than 170mAh/g, 10C capacity is larger than 120mAh/g, the energy density can reach 132 watt-hour/kg or more, and the power density reaches 6800 watt/kg or more.

The present invention relates to an anti-puncture and anti-explosion tire and a spray-dripping method and spray-dripping equipment therefor. The spray-dripping device is used for spraying a puncture-resisting detonating plastic on a tire, and includes a digitized person. Machine system operating platform, a base, one side rotation fixing device, one/small wheel replaceable bottom supporting device, one displacement unit and one single and double parallel gun body assembly; digital human-machine system operation platform is used to control the whole device to operate; the lateral rotation fixing device and the large/small wheel replaceable bottom supporting device are used to support and drive the rotation of the tire; the displacement unit includes a first displacement module that can movealong the X axis and can move along the Y axis. A second displacement module; the single and double parallel gun body assembly includes a fixed-point nozzle or a multi-angle continuous reciprocatingnozzle; the single-double parallel gun body assembly is driven by a displacement unit and spray-penetrated to prevent the puncture and detonation of the tire; the technical solution can effectively reduce the plastic material loss and finished product defect rate.

The present invention provides a polypeptide monolayer film with 7% of exposure quantity of primary amino groups as well as a preparation method and application of the polypeptide monolayer film. Thepolypeptide is composed of a polypeptide molecule with the molecular weight of (1.48+/-0.2)*105 g/mol, wherein the thickness of a monolayer film is 8.9+/-0.1 nm, the primary amino group exposure of the surface of the film is 7.0+/-0.2%, the Zeta potential of the polypeptide monolayer film is 0.76+/-0.1 mV; and the contact angle of the film is 48+/-1 DEG. The polypeptide monolayer film provided bythe present invention has good stability, may be applied as a coating material on the surface of an oral implant and may carry antibiotics and antibacterial drugs and stably release the antibiotics and the antibacterial drugs, the exposure quantity of the primary amino groups on the surface of the film is precisely controlled at 6.0+/-0.3%, a local medicine carrying coating of the polypeptide monolayer film has the advantages such as little toxic and side effects to human bodies and strong antibacterial property, and the polypeptide monolayer film is uniform and tight in combination with a pure titanium material and not easy to separate and fall off.

The invention discloses a process method for pressing magnesite into balls through a light burning dry method to carry out chlorination production of anhydrous magnesium chloride melt. According to the method, the magnesite is subjected to light burning through a furnace kiln; a carbonaceous reducing agent and a dried industrial salt additive are added according to a certain ratio; a mill is adopted to grind into a mixed powder material; the mixed powder material is directly pressed into a briquette through a ball pressing machine; the briquette is conveyed to a chlorination furnace, and reacts with the introduced chlorine gas at a high temperature of 800-1000 DEG C to produce the magnesium chloride melt. Compared to the prior art, the process of the present invention has the following advantages that: the productivity of the chlorination furnace can be improved, the chlorine gas utilization rate can be improved, and the electricity consumption of the chlorination furnace can be reduced.

The invention relates to a silicon steam corrosion resistant internal coating for directly protecting carbon fiber and an in-situ preparation method thereof. The internal coating is prepared by the following steps of: coating a primary pyrolytic carbon substrate layer on the surface of carbon fiber through a chemical vapor deposition mode; then coating a secondary silicon carbide enriched protective layer on the surface of the primary pyrolytic carbon substrate layer through the chemical vapor deposition mode. The invention further relates to a preparation method of the silicon steam corrosion resistant internal coating for directly protecting the carbon fiber. The silicon steam corrosion resistant internal coating obtained by the invention is compact and uniform in structure, is firmly bonded with a carbon fiber body in a carbon/carbon composite material crucible and completely coats the carbon fiber body; and a carbon fiber reinforcing material of the carbon/carbon composite material crucible with the silicon steam corrosion resistant internal coating is not corroded by silicon steam, thus the use reliability of a product is improved, and the service life of the product is prolonged.

The invention relates to the technical field of LVT plastic floors and discloses an LVT plastic floor production process. The production process includes the following steps that S1,PVC resin powder raw material screening is performed; S2,raw material mixing is performed, and a mixture A is obtained after uniform mixing; S3,rubber manufacturing is performed, the mixture A is conveyed to an internal mixer through a spiral conveyor to be machined into rubber; S4,LVT layer manufacturing is performed; S5,film covering press fitting is performed, meanwhile, a PVD abrasion resisting layer and a color film layer are conveyed to a four-roller film covering machine, hot pressing forming together with an LVT layer is performed, and an LVT plastic floor blank body is obtained; S6, constant temperature tempering is performed, and used for making the LVT layer, the PVD abrasion resisting layer and the color film layer combined more compactly and uniformly; S7,final forming is performed, the LVT plastic floor blank body is conveyed into a hydraulic coiling and rolling machine, and pressing and forming are performed; and S8,cutting is performed, and cutting into a needed specification through a cutting machine is performed. The LVT plastic floor production process and device have the beneficial effects that continuous production is achieved, the floor space is saved, manpower is saved, and the production cost is lowered.

The invention provides a polypeptide single-layer film with a primary amino exposure amount of 6%, and a preparation method and an application for the polypeptide single-layer film. The polypeptide iscomposed of polypeptide molecules with a molecular weight of (1.48 +/- 0.2) * 10<5> g/mol; the thickness of the single-layer film is 14.6 +/- 0.1 nm; the exposure amount of primary amino groups on the surface of the film is 6 +/- 0.3%; the Zeta potential of the polypeptide single-layer film is minus 4.48 +/- 0.1 mV; and the contact angle of the film is 45 +/- 1 degrees. The polypeptide single-layer film provided by the invention has good stability; the exposure amount of primary amino groups on the surface of the film is accurately controlled to be 6.0 +/- 0.3%; and the polypeptide single-layer film can be applied to an oral implant surface coating material, and can carry antibiotics and antibacterial drugs and stably release the antibiotics and the antibacterial drugs; and the local drug-loaded coating of the polypeptide single-layer film has the advantages of small toxic and side effects on the whole body, strong antibacterial property and the like, is uniformly and tightly combinedwith a pure titanium material, and is not prone to separating and falling off.

The invention discloses a method for preparing a nanocarbon conductive fiber coated niobium-aluminum superconducting wire. The method is characterized in that aluminium powder is added into a nanocarbon conductive fiber material solution to coat nanocarbon conductive fibers with aluminium powder, clustering is prevented after heat treatment, the electric conductivity is improved, and aluminium powder is prevented from oxidation. According to the method, the phenomena that a precursor has high probability of fracture in high temperature and heating equipment is specially demanded during traditional quick heating and quick cooling treatment are avoided, and the obtained superconducting wire is uniform in ingredient, favorable in performance, effectively lowered in cost and favorable for large-scale production.

The invention discloses a method for preparing organic composite inorganic electrochromic films. The prepared inorganic film is a WO3 film, and organic doping materials are phenylamine/o-phenylenediamine. SiO2 colloid crystals are used as templates, the WO3 film is filled into gaps of the colloid crystals, the porous films with regular pore arrangement are formed after the SiO2 colloid crystal templates are removed, the porous films are soaked into prepared organic matter precursors, and the organic composite inorganic electrochromic film materials are obtained through drying, pulling and drying.