590results about How to "Improve surface condition" patented technology

The present invention is a polyoxyalkylene polyol, its manufacture method, and derivatives, wherein: it is obtained using a phosphazenium compound as a catalyst; the hydroxyl value is 2~200 mgKOH/g; total degree of unsaturation is 0.0001~0.07 meq./g; the head-to-tail bond selectivity of the polyoxyalkylene polyol is 95 mole %; and when the maximum height of the peak of GPC elution curve is set to be 100%, W20 is defined as the peak width at the 20% peak height, and W80 is defined as the peak width at 80% peak height, the ratio of W20/W80 is 1.5 or greater, and less than 3.

A cellulose acylate solution containing a cellulose acylate which satisfies 2.5≦A+B≦3, 0≦A≦2.5, 0.3≦B≦3 (wherein A is the substitution degree of an acetyl group, and B is the sum of the substitution degrees of an acyl group having 3 to 7 carbon atoms) and whose content of sulfur atoms of residual sulfate moiety S is such that 50 ppm<S<500 ppm. When solution casting is carried out using this solution, a cellulose acylate film having good surface state and low peel-off load can be produced.

The invention relates to a silicon-carbon composite negative pole material preparation method and a lithium ion battery. The preparation method comprises putting nanometer silicon and graphite micro-powder into a ball mill, carrying out ball milling uniform dispersion in an organic solvent environment, carrying out vacuum drying, putting the dried mixture and asphalt into a cone-type mixer, carrying out coarse mixing, putting the mixed powder subjected to coarse mixing into a mechanical fusion machine, carrying out mechanical fusion, carrying out heat treatment in an inert gas protective atmosphere and carrying out cooling to obtain the silicon-carbon composite negative pole material. The preparation method carries out asphalt softening coating on nanometer silicon so that silicon particle and electrolyte direct contact is avoided, a capacity reduction rate is delayed, a lithium ion diffusion path is shortened, an electrode material electron conduction loss is avoided, and first charge-discharge efficiency, a charge-discharge electric capacity and cycle performances are improved. Before coating, nanometer silicon is dispersed through graphite micro-powder so that it is avoided that in asphalt coating, nanometer silicon aggregation causes local capacity excess and nanometer silicon is uniformly dispersed.

The invention discloses a regenerating method and a regenerating device for a selective catalytic reduction de-nitration catalyst. In the regenerating method, the industrially applied poisoned SCR (Selective Catalytic Reduction) de-nitration catalyst is subject to ultrasonic pretreatment, de-ionized water rinsing, chambering agent soaking, high-temperature high-pressure evaporation, active material activation and burning in sequence, thereby regenerating the catalyst. The regenerating device comprises a purging pool, a soaking cleaning pool, a high-pressure kettle, an oscillation water bath kettle, a drying box and a muffle furnace. The regenerating method and the regenerating device have the advantages that pore channels are loosened, the pore structure of the catalyst is obviously optimized, the surface appearance of the catalyst is obviously improved, the activity of the regenerated catalyst is greatly promoted, the practical running demand in industry is met, the raw material is easily acquired in the regeneration process, the process is simple, and the production cost of the enterprise using the SCR de-nitration catalyst is greatly lowered.

A graphene auxiliary brazing method for a ceramic matrix composite material and a metal material elates to a brazing method for the ceramic matrix composite material and the metal material and solves the problem that a brazed connector obtained by brazing the ceramic matrix composite material and the metal material is poor in mechanical property. The brazing method comprises the steps of placing the ceramic matrix composite material into plasma reinforcing chemical vapor deposition equipment to carry out plasma surface treatment, adding CH4 gas to regulate flow, opening a radio frequency power supply, regulating the radio frequency to deposit for 10-30min, using Ar and H2 as protection gas, cooling to the room temperature, obtaining the ceramic matrix composite material with graphene growing on the surface, placing Ti brazing filler metal between faces to be connected, placing the Ti brazing filler metal into a vacuum brazing furnace to be brazed, and finally cooling to the room temperature to finish brazing. The shear strength of a connector formed by the ceramic matrix composite material and the metal material in the brazing method can reach to 35Mpa at the room temperature.

Improved glass fibers compositions, typically useful for fire resistant blankets or containers to provide high burn-through resistance at high temperatures of 2,400° F. and higher, and typically comprising silica, sodium oxide, potassium oxide, calcium oxide, magnesium oxide, ferrous+ferric oxide, and titanium oxide; the improved glass compositions may further include alumina, lithium oxide, and boron oxide.

The invention provides a method for improving the strength of glass. The method comprises the following steps: performing chemical strengthening on the glass; and performing mechanical polishing on atleast one surface of the glass after the chemical strengthening. According to the method for improving the strength of the glass, the strength of the glass can be greatly improved and reliably maintained only by removing a defective layer in a certain thickness on the surface of the strengthened glass; and the method has simple operation and convenient control, and is convenient for industrialized production. In addition, the method effectively reduces a defective part on the surface of the glass by performing the mechanical polishing, can better improve the strength of the glass without performing chemical strengthening repeatedly on the glass, and reduce the corrosion to the glass and the damage to the optical performance of the glass by chemical drugs so that the glass has better luster and transmittance. The glass strengthened by the method provided by the invention is particularly suitable for a mobile phone display window.

A solid-state image pickup device 100 is constructed in which a waveguide 15 is formed in an insulating layer on a light-receiving sensor portion 2, a side wall 161 of the waveguide 15 is covered with a reflective film 17 made of an Al film deposited by a CVD method, an underlayer film 19 is formed between the reflective film 17 and the side wall 161 of the waveguide 15 and the underlayer film 19 is made of a VIb-group element. It is possible to obtain a solid-state image pickup device including a waveguide in which hydrogen supplied to the light-receiving sensor portion 2 can be restrained from being absorbed by the underlayer film 19 and which has the reflective film 17 of high reflectivity with satisfactory surface condition, satisfactory coverage and excellent adhesion.

The invention discloses a catalyst used in a coal natural gas methanation reactor. The catalyst comprises the following components in percentage by weight: 10-40% of an active component, 40-75% of a carrier, 5-20% of a first auxiliary agent, 2-15% of a second auxiliary agent and 2% of graphite, wherein the active component is NiO; the carrier is Al2O3; the first auxiliary agent is one or two of rare earth metal oxide La2O3, CeO2 or Sm2O3; and the second auxiliary agent is CuO. The preparation method of the catalyst comprises the following steps: preparing a mixed solution, heating and precipitating, filtering the precipitate, washing a filter cake, drying, baking and shaping. The obtained catalyst has the advantages of simple components, low cost, good catalytic activity and high stability, and is easy to prepare.

Adhesion of dielectric layer stacks to be formed after completing the basic configuration of transistor elements may be increased by avoiding the formation of a metal silicide in the edge region of the substrate. For this purpose, a dielectric protection layer may be selectively formed in the edge region prior to a corresponding pre-clean process or immediately prior to deposition of the refractory metal. Hence, non-reacted metal may be efficiently removed from the edge region without creating a non-desired metal silicide. Hence, the further processing may be continued on the basis of enhanced process conditions for forming interlayer dielectric materials.

The present invention relates to foamed polyolefin resin beads. Further, the present invention provides foamed resin beads obtained by foaming and expanding composite resin beads which include a core layer constituted by a polyolefin resin and a covering layer which covers the core layer constituted by a polyolefin resin, wherein (a) the polyolefin resin constituting the core layer is a crystalline polyolefin resin, (b) the polyolefin resin constituting the covering layer is a crystalline polyolefin resin which has a lower melting point (B) than a melting point (A) of the polyolefin resin constituting the core layer, wherein a temperature difference [(A)−(B)] between the melting point (B) and the melting point (A) is more than 0° C. and 80° C. or less, or a noncrystalline polyolefin resin which has a softening point (C) lower than the melting point (A) of the polyolefin resin constituting the core layer, wherein a temperature difference [(A)−(C)] between the softening point (C) and the melting point (A) is more than 0° C. and 100° C. or less, and 10% by weight or more and less than 50% by weight of polymer type antistatic agent is contained in the covering layer. The foamed polyolefin resin beads of the present invention provide foamed polyolefin resin beads are excellent in fusion properties between beads at the time of molding in a mold, capable of providing a molded foamed article which is excellent antistatic performance, has no deterioration of the antistatic performance with age, whose antistatic performance is not humidity dependent, does not contaminate packaging products, has a good molded foamed article surface, and has excellent mechanical properties.

The invention provides an ultrasonic surface modification treatment method for aramid fibers. One or more amidic organic solvents in any proportion are selected as an ultrasonic treatment medium; under an ultrasonic action, fiber surfaces can be etched effectively by the amidic solvents; simultaneously, the sticking points among aramid fiber filaments can be reduced, and the state of the surfaces can be improved, so that the bonding strength between a resin and a fiber is increased; and meanwhile, the online treatment of the fibers is easy to realize by the ultrasonic treatment, and the time for modifying the fiber surfaces is shortened.

Provided are a diamond sintered body having higher strength and more excellent wear resistance than a conventional diamond sintered body, and a method for producing such a diamond sintered body. The diamond sintered body includes diamond particles, a binder, and a void. The diamond particles have a content of not less than 80% by volume but less than 98% by volume. The binder includes a solid solution containing at least one element selected from a group consisting of titanium, zirconium, vanadium, niobium, and chromium, carbon, and tungsten, as well as an iron group element. Neighboring ones of the diamond particles are bonded to one another. The method provides such a diamond sintered body.

The invention discloses a manufacturing method and process device of a reactivated cleaning agent for regeneration of a honeycomb SCR (selective catalytic reduction) denitration catalyst. The deactivated SCR denitration catalyst in the process device is regenerated through the steps of pressurized water spraying, ultrasonic cleaning, secondary pressurized water spraying, acid washing, forced air drying, active component supplementation, secondary forced air drying, step-by-step calcination and the like in sequence. By using (NH4)2SO4 as a main component of an acid washing solution, potential hazards caused by sulfuric acid are avoided, and the economic performance and the safety are realized. The components such as EDTA (ethylene diamine tetraacetic acid) are added into the cleaning agent, and under the chelation of the EDTA and heavy metal elements, the toxic action on the denitration catalyst caused by the heavy metal elements can be well eliminated. According to the process, the denitration activity of the deactivated catalyst can be recovered, and meanwhile, the structural strength of the catalyst can be kept. The process device is simple, suitable for regeneration in hoisting transportation, and high in efficiency. By the promotion of the process, the performance of the regenerated honeycomb SCR catalyst can be improved, the replacement cost of the catalyst is saved, and the process has an important significance on NOX control.

Provided is a polyarylene sulfide resin molded article having a good surface state which can be molded at a significantly high crystallization speed without impairing heat resistance, mechanical properties, chemical resistance, dimensional stability and flame retardancy of polyarylene sulfide resins. The resin composition comprises (A) 100 pts. wt. polyarylene sulfide resin, (B) 0.1-10 pts. wt. aromatic phosphate of a specific structure, and (C) 3-35 pts. wt. polyphenylene oxide resin.

A cellulose ester film comprising at least one polycondensate ester that comprises a dicarboxylic acid residue mixture having an average carbon number of from 5.5 to 10.0 and comprising an aromatic dicarboxylic acid residue and an aliphatic dicarboxylic acid residue, and an aliphatic diol residue having an average carbon number of from 2.5 to 7.0.

Provided is a zinc-plated steel sheet for hot pressing having outstanding surface characteristics, comprising: a steel foundation plate comprising a metal surface diffusion layer of which the Gibbs free energy reduction per mole of oxygen during oxidation is less than that of Cr; an aluminum-rich layer containing at least 30 wt. % of aluminium formed on the surface diffusion layer, and a zinc plating layer formed on the aluminum-rich layer. In this way, a metal having a low affinity for oxygen is coated to an effective thickness prior to annealing and thus the creation of annealing oxides at the surface of the steel sheet is suppressed and a uniform zinc plating layer is formed, and alloying of the zinc plating layer is promoted during press-processing heat treatment. Cracking in the steel foundation plate during hot press molding is prevented.

The invention relates to a method of manufacturing a tail structure for a rotary wing aircraft, the structure comprising:

a tubular portion or duct (63) presenting two ends and including two collars or flanges (66, 70) extending respectively from each of said two ends; and

two curved fairing side walls (45, 47) extending respectively around the two collars or flanges; said two side walls being made of a composite material comprising an organic matrix and reinforcement; in a method of the invention, the side walls are united by solidifying the matrix.

The invention discloses a method for beneficiating high-peat copper sulphide ore and relates to a method for beneficiating nonferrous metals, which specifically relates to a method for beneficiating high-peat copper sulphide ore; regulating agent and composite inhibitor are added before floating ore pulp and after graining raw ore; flotation environment and mineral surface state in ore pulp are improved in the method disclosed by the invention; the inhibition capacity of inhibitor on easily-floated gangue mineral and selective collection of collecting agent on mineral are enhanced; compared with the traditional method for beneficiating pre-deslimed peat, a technical procedure is simplified by the invention; the loss of available mineral caused by pre-deslimed peat is avoided; and the recycle rate of copper is increased by about more than 18%.

The invention discloses a method for preparing Ni-Mn-Ga ferromagnetic shape memory alloy continuous fibers by adopting a spinning method, and relates to a preparation method of Ni-Mn-Ga ferromagnetic shape memory alloy continuous fibers. The method solves the problems that the conventional glass coating method for preparing the Ni-Mn-Ga fibers has low production efficiency and poor process repeatability and bare fibers cannot be directly obtained. The method comprises the following steps of: putting Ni-Mn-Ga alloy ingots into a crucible of a device for preparing metallic amorphous wires, charging argon protection gas into a cavity, starting a metallic roller, heating the crucible, controlling the crucible to move to the metal roller after the alloy is smelted, and spinning the metal into the fibers when the high-speed rotating metal roller is in contact with the molten metal. The length of the prepared fibers reaches 1 to 10 centimeters, the diameter of the fibers is 30 to 80 microns, and the size of the fibers is uniform. The components of the fibers are uniform and consistent with the adopted alloy ingot components. The preparation method has high production efficiency and good process repeatability, the bare fibers can be directly obtained, and good surface state is kept.