374results about How to "Controllable shape" patented technology

The invention discloses a transitional tracking planning method applied by an industrial robot, which can realize the transition between a joint space track and a cartesian space track, and the transition between two tracks of the cartesian space, the transitional track between different movement tracks are planned under the cartesian space, and has an intuitive shape; by adopting the algorithm that two parabolas are fused into one transitional curve, the smoothness of the track, speed and acceleration can be ensured, and the curve shape is controllable; the transitional track is formed by six independent curves, and the transition can be realized on the track with only posture change without position change; from the engineering application angle, the path velocity of transitional track boundary is restrained by utilizing the included angle between the tracks and the system allowable chord error, the boundary posture rotation speed is restrained by the similar mode, so that the large impact on a mechanical system caused by overhigh engagement speed can be prevented.

The present invention discloses hydrogenating catalyst of foam metal and its preparation process and application. The hydrogenating catalyst includes foamed metal carrier and active noble metal component in effective amount supported onto the carrier, the carrier is prepared through powder metallurgical process, and the active component is supported via chemical plating process and distributed homogeneously on the port surfaces of the foamed carrier. The catalyst has the advantages of high catalytic activity, firm combination between the active component and the carrier, high stability, simple preparation process, high porosity of the carrier, great specific surface area, etc. in addition, the catalyst provides sufficient gas-liquid contact area, is favorable to mass transfer between gas phase and liquid phase, may be used in catalytic rectification and possesses both reaction and separation effects.

The invention discloses a metal/grapheme nanocomposite and a preparation method thereof. The method comprises a photo-reduction one-step method and a photocatalytic reduction one-step method. The photo-reduction one-step method comprises the steps as follows: a grapheme oxide and metal complex acid or inorganic salt and a photo-reduction agent are mixed at the room temperature or under the condition of an ice-water bath, and under the light condition, organic negative hydrogen donors reduce metal ions and the grapheme oxide, so that a product is obtained. One approach of the photocatalytic reduction one-step method comprises the steps as follows: the grapheme oxide and the metal complex acid or salt are mixed in a DMF (dimethyl formamide) water solution containing a reducing agent, a metal ligand and a photocatalyst or in a water solution, catalysis is performed through the catalyst under the light condition, and at the same time, the reducing agent reduces the metal ions and the grapheme oxide, so that a product is obtained; and the other approach of the photocatalytic reduction one-step method comprises the steps as follows: the grapheme oxide and a metal organic complex are mixed in a DMF water solution containing the reducing agent and the photocatalyst or in a water solution, then catalysis is performed through the catalyst under the light condition, and the reducing agent reduces the metal organic complex and the grapheme oxide, so that a product is obtained.

The invention discloses a preparation method of a cadmium selenide or cadmium sulfide two-dimensional monocrystal nanosheet. The method comprises the steps that the CdSe or CdS two-dimensional monocrystal nanosheet is prepared through a van der Waals epitaxial growth technology, the method is characterized in that a mica sheet which is smooth in surface and free of chemical dangling bond is adopted to serve as a substrate, CdCl2 powder or Se powder or S powder serves as a source material, argon serves as carrier gas, CdCl2 stream is reacted with Se or S steam to form CdSe or CdS steam at high temperature, and the steam is deposited on the mica sheet for nucleation and epitaxially grows into the CdSe or CdS two-dimensional monocrystal nanosheet. The preparation method of the cadmium selenide or cadmium sulfide two-dimensional monocrystal nanosheet is easy to operate, low in cost and strong in controllability, the obtained CdSe or CdS has the advantages of being good in size uniformity, high in degree of crystallinity and the like, and important research value and wide application prospect in the fields of solar cells, field effect transistors, photoelectric detectors, photocatalyses and the like are achieved.

The invention relates to a noble metal nanocatalyst loaded on a dendritic macromolecule functionalized graphene and a preparation method thereof. The nanocatalyst is composed of graphene, silane coupling agents, dendritic macromolecules and noble metal nanoclusters, wherein the dendritic macromolecules are amino-terminated polyamide-amine (PAMAM) dendritic macromolecules, and the noble metal nanoclusters comprise palladium, platinum, gold, silver, ruthenium, iridium, osmium and related alloys. Aminos are introduced onto the surfaces of exfoliated graphene by the silane coupling agents, then different generations of the dendritic macromolecules are covalently introduced, and further the nanoclusters of noble metals and the related alloys are loaded by using the above-obtained materials as templates. The loaded noble metal nanocatalyst is not easy to agglomerate or to fall off during catalytic processes, and has high catalytic activity. The loaded noble metal nanoclusters has the characteristics of tunable size and controllable shape, and the structure and composition of the noble metal alloys can be controlled accurately. The method is simple in process and short in period, and can easily realize industrial production.

The invention provides a structure of a curved capacitive touch control panel, which comprises a three-dimensional curved flexible circuit board with a capacitive touch control function, a touchable three-dimensional curved glass substrate and an adhesive layer. The three-dimensional curved flexible circuit board is provided with a first curved lateral face and a first curved end face, which are formed by at least two axial arc curved moulds by means of compression molding. The three-dimensional curved glass substrate is provided with a second curved lateral face and a second curved end face, which are mutually coupled and attached into a whole corresponding to arc curved shapes of the three-dimensional curved flexible circuit board. The adhesive layer is arranged between the three-dimensional curved glass substrate and the three-dimensional curved flexible circuit board and used for bonding the three-dimensional curved flexible circuit board onto the three-dimensional curved glass substrate.

The invention relates to a biological medical porous titanium material and a preparation method thereof. The preparation method, namely a method adopting powder metallurgy, is to add spherical particles of novel polymethyl methacrylate pore-forming agent to prepare a structure provided with a rough surface and three-dimensionally communicated open pores, wherein the number, the shape and the size of the pores can be controlled, namely, the porosity degree is less than 70vol. percent, the open porosity factor is more than 60 percent, the average pore diameter is less than 500 mums, the Young's modulus in compression is more than 0.3 GPa, the compressive strength is more than 40MPa, and the bending strength is more than 50MPa. The biological medical porous titanium material can be widely applied in the field of biological medical implants such as dental implants, artificial joints, spinal orthopaedic internal fixed systems, medullary internal nails and orthopaedic armor plates.

The invention discloses a method for preparing a titanium-based graphene composite material through a 3D printing technology. The method includes the steps that firstly, titanium and alloy powder of the titanium are evenly mixed with graphene powder in a high-energy ball grinding manner, and titanium-based/graphene composite powder is obtained, wherein the adding amount of graphene accounts for 0.1-3 weight percent of the total mass; secondly, a stearic acid alcoholic solution is added into the evenly-mixed composite powder, ball grinding is conducted again, and composite powder obtained after the second time of ball grinding is screened and granulated, and titanium-based/graphene composite powder with the grain size ranging from 10 microns to 70 microns is obtained; and thirdly, the composite powder is packed into a powder supply box in batches, the surface of a base material is wiped through acetone, oil dirt is removed, and finally the titanium-based graphene composite material is prepared through the 3D printing technology. The 3D printing technology is used for preparing, a titanium-based graphene composite material practical part in a complex shape can be prepared according to practical needs, a prepared block material is large in size and controllable in shape, and the graphene adding amount is accurately controlled within the range of 0.1-3 weight percent; and meanwhile the preparing technology is simple, operation is convenient, and the preparing efficiency is high.

A method of producing a polyurethane foam sheet, and a laminated sheet that uses such a foam sheet, that can be applied to artificial leather, synthetic leather, and cushioning materials used in all manner of applications. A polyurethane foam sheet is produced by applying a liquid mixture, obtained by mixing together a heated and melted hot melt urethane prepolymer (A) containing isocyanate groups at molecular terminals, and a compound (B) containing at least 2 active hydrogen atom-containing groups, onto a substrate in a sheet-like manner, and then water foaming the liquid mixture by bringing the sheet-like liquid mixture into contact with water vapor or moisture (water). A laminated sheet is produced by bonding a third substrate to the polyurethane foam sheet.

The present invention relates to a hot-meltable curable silicone composition for compression molding or laminating and a laminate provided with at least one layer comprising the composition, as well as a semiconductor device using these and a method of manufacturing the same. In accordance with the present invention, it is possible to efficiently manufacture a semiconductor device provided with a hemi-spheroidal lens- or dome-shaped seal. In the present invention, it is easy to control the shape of the seal, and the seal does not contain any bubbles. In the present invention, it is also easy to control the thickness of the coating layer of the semiconductor device apart from the seal.

This invention discloses a filling up method for point-cloud holes of 3-D scanning based on a triangle domain Bessel curved face including a practicality model, 3-D data collection, data pre-process, re-structure and analysis of curve faces, fitting of the curved faces, moldeling of the CAD, data program and process, spare parts, measurement of database and CAD analog library. This invention can get a curved face with random points around accurate fit holes.

The invention relates to a total internal reflection micro lens array for a wide-angle lighting system. The micro lens array includes a plurality of Fresnel lens structures formed on a same optical incidence surface. Each of the Fresnel lens structure comprises a plurality of grooves, each having a reflecting surface and a refractive surface. Incoming radiation incident through the incidence surface of the lens structure is internally totally reflected by the reflecting surface, refracted by the refractive surface and exits the lens structure.

The embodiment of the invention discloses a silicon heterojunction solar cell with an electroplating electrode and a manufacturing method thereof. The method comprises the steps that a metal seed layer is formed on the surface, where a grid needs to be manufactured, of a cell substrate; a silk-screen printing ink process is used for forming an ink grid line groove pattern on the surface of the metal seed layer; after a preset time interval, the ink grid line groove pattern is cured; the ink grid line groove pattern is used as a mask film, an electroplating process is used for depositing a composite metal layer; the ink grid line groove pattern and the part, which is not in contact with the composite metal layer, of the metal seed layer is removed. The implementation mode for forming the ink grid line groove pattern by the silk-screen printing ink process is simple and controllable, moreover, ink can be removed easily, and the manufacturing technology is simple. In the curing process, the ink can be evenly expanded and deformed, the width of an opening of the obtained ink grid line groove pattern is small, the depth-width ratio of a formed metal grid line is large, the light shading area is small, and the efficiency of the silicon heterojunction solar cell with the electroplating electrode is improved.

The invention relates to a method for preparation of a Cu2O and Au/Cu2O core-shell heterostructure nano cube through thermal oxidation. Acccording to the method, a copper mesh micro-gate is used as a copper source, oxygen in the air is used as an oxygen source, Au nanoparticles coated with tetraoctylammonium bromide stabilizers on the surface are used as catalysts and nucleation points for growth of the Cu2O and Au/Cu2O core-shell heterostructure nanoparticles, the raw materials are heated at 300 DEG C, and the Cu2O and Au/Cu2O core-shell heterostructure nano cube can be prepared through adjusting the density of the Au nanoparticles on the copper mesh. The Cu2O nano cube mainly has two forms: a perfect cube and a cube with corners cut. The Au/Cu2O core-shell heterostructure nano cube is a core-shell heterostructure nano cube. The method has the advantages that the product purity and the selectivity are high, the synthesis process is simple, the production cost is low, no pollution can be caused, and the shape can be controlled.

The invention relates to an amino end-group triazine ring tree-shaped macromolecular adsorbent and a preparation method thereof. An anionic dye can be removed by fading dye wastewater. A tree-shaped macromolecule is a three-dimensional hyper-branched sequential novel macromolecule, so that the size, shape structure and functional group of the molecule can be strictly controlled and designed at molecular level, a dye molecule can be wrapped by a cavity structure in the macromolecule, and the removing purpose is achieved. The preparation method provided by the invention comprises the following steps of: dissolving cyanuric chloride in acetone; adding quadrol; stirring, reacting and then adding acid-binding agent; increasing temperature and reacting; and performing suction filtration on the product and then extracting and washing, thereby obtaining the amino end-group triazine ring tree-shaped macromolecular adsorbent. Under the influence of unsaturated bonds, the adsorbent disclosed by the invention is higher in reactivity and is easily subjected to nucleophilic substitution; the reaction selectivity is excellent; the condition is controllable and the method is conducted in steps; the adsorbent has physical and chemical adsorption for the anionic dye; and the adsorbent has the characteristics of higher relative molecular mass, so that the material usage is less and the cost is low.

The invention discloses a method for constructing horizontal salt rock dissolving cavity reservoirs, and belongs to categories of salt deposit water dissolving mining and salt rock dissolving cavity controlling, dissolving, constructing and utilizing. The method for constructing the horizontal salt rock dissolving cavity reservoirs has the advantages that the quick horizontal salt rock dissolving cavity reservoirs which are high in efficiency and capacity and have shapes easy to control can be constructed by means of directional drilling and cyclic retreating type single-well convection dissolving; merits of a single-well convection process and merits of double-well directional butting communication convection process are combined with one another, fresh water is injected into salt rock deposits by patterned hole jet flow sections 3 on the side walls of blind ends of center pipes, brine which is generated after salt rock is dissolved is drained out of earth surfaces from annular spaces between the center pipes and middle pipes, cavities are constructed by means of periodic sectioned retreating type dissolving, and large horizontal dissolving cavities can be constructed by means of single-well convection; the lengths of horizontal wells can reach 800-1000m, the constructed horizontal salt rock dissolving cavity reservoirs are high in capacity, and the method is a perfect method for quickly constructing the large horizontal salt rock dissolving cavity reservoirs by means of dissolving.

The invention belongs to the technical field of a chemical power supply, and particularly relates to a polyethylene oxide (PEO)-based solid polymer electrolyte membrane and a preparation method thereof. The PEO-based solid polymer electrolyte membrane comprises a polymer substrate and an alkali metal salt, wherein the EO/Li mass ratio of the polymer substrate and the alkali metal salt is (5-30):1, the polymer is a copolymer of PEO and polymethyl methacrylate (PMMA), the molecular weight of the PEO is 100,000-1,000,000, the molecular weight of the PMMA is 25,000-100,000, and the alkali metal salt is more than one of LiClO4, LiPF6, LiBF4, LiTFSI, LiAsF6, Li B(C2O4)2(Li BOB) and Li SO2CF3(Li Tf).

The invention relates to a method for preparation of nano calcium carbonate particles by highly effective mixture, belonging to the art of preparation of nano particles. Preparing Ca(OH)2 suspension in a container; fixing dispersion medium in the container and venting reacting gas in; pumping the prepared Ca(OH)2 suspension into reactor by a pump to react, and dropping until PH decreases to 7, the reaction finishes and the nano calcium carbonate particles are prepared; the gas-liquid mixture prepared after the reaction returns to the container to be used cyclically. The merit of the invention is characterized in that the mixture speed is rapid and uniform, the grain size and shape are controllable, the usage ratio of CO2 is high and can reach more than 50%, the operation energy-consumption is low, and the stability is high; the grain size of prepared nano calcium carbonate is about 20nm, the shape is cube-type. And it has good prospect in preparation of nano calcium carbonate.

The invention relates to a method for preparing a gelatin microballoon embolization agent, which comprises the following steps of dissolving gelatin or mixture of gelatin and medicine at 30-70 DEG C, filtering to obtain gelatin solution with 15%-60% of solid content, adding gelatin solution into oil phase liquid paraffin with mass ratio of 1%-2% of stabilizer Span 80, wherein the volume ratio of water and oil is 1/1-1/10, stirring for 15 minutes by 200-800r/min, adding cross-linking agent aldehyde compound with mass percent of 2%-50% at low temperature of 0-10 DEG C, solidifying for 1-2 hours, washing or drying the cross-linking agent to obtain the microballoon embolization agent after freeze drying or dehydration. The method has the beneficial effects that the gelatin microballoon embolization agent has certain elasticity and expansibility, the surface is smooth, the sphere is obvious, the size and the shape of the sphere is uniform, the grain size is controllable, clinical embolization effect can be improved, and side effect can be lowered, the clinical controllability is strong, antitumor drug can be added into the microballoon in manufacture process, so that double therapeutical effect of medicine treatment and embolization can be realized. The gelatin has good biocompatibility and biodegradablity, and clinical safety can be guaranteed.

The invention discloses ITO-Ag-ITO etching liquid for an AMOLED. The liquid comprises, by weight percentage, 3% to 10% of nitric acid, 10% to 25% of acetic acid, 30% to 60% of a mixture of phosphoric acid and soluble orthophosphate, 1% to 5% of an additive and the balance deionized water, wherein the additive comprises nitrate. The soluble orthophosphate is added so that the viscosity of the etching liquid can be properly increased, it is guaranteed that the etched surface has the reasonable reactant and product concentration gradient in the etching process, and compared with the prior art, the silver etching speed can be properly reduced, the even etching effect can be achieved, and the controllable electrode shape is obtained; and decomposition of the acetic acid, the nitric acid and nitrous acid in the etching process can be remarkably reduced, and environment-friendly production of the etching process can be achieved conveniently.