48results about How to "Prevent rupture" patented technology

The fastener system of the invention comprises a coaxial annular flange (14) having through holes (16) provided therein, each serving to pass a screw (17) for screwing into an associated tapped hole (16) in the wall (2) of a stationary structure. Each through hole (16) comprises a circularly cylindrical distal segment (16a) followed by an enlarged proximal segment (16b) adjacent to the wall (2) of the stationary structure, and allowing the shank (19) of the screw to bend and enabling a corresponding lateral offset (D). This prevents the screw (17) rupturing under high shear forces due to accidental destruction of a vacuum pump rotor while rotating at full speed.

The invention provides a method for controlling steam channeling of a steam-injected oil reservoir. The method comprises the following steps: injecting fiber solution into an injection well in which the steam channeling occurs to form a fiber section plug; injecting nano-particle solution into the injection well in which the steam channeling occurs to form a nanoparticle section plug; when the injection pressure is higher than the average steam injection pressure of a steam channeling section by 3-5MPa, the water content of a steam channeling production well is reduced to below 60 percent, and when the temperature of a wellhead of the production well is reduced to below 100DEG C, injecting the steam again, and finishing the control over the steam channeling of the steam-injected oil reservoir. According to the method for controlling the steam channeling of the steam-injected oil reservoir, provided by the invention, the porosity space of a reservoir with a high permeability zone can be effectively reduced, the permeability of the reservoir is reduced, the high permeability zone is blocked, and the action of controlling the steam channeling is achieved.

The invention relates to a printed circuit comprising a substrate (1) onto which at least one ceramic component (2, 3, 4) is attached so as to enable the heat produced by the ceramic component (2, 3, 4) to be discharged and to prevent cracks in the ceramic component (2, 3, 4) and in the substrate (1). To this end, the ceramic component (2, 3, 4) is attached onto the substrate (1) by means of two connectors (5, 6) made of metal matrix composite material. Said two connectors further preferably have incisions so as to enable the mechanical stresses exerted in the substrate to be carried over into the connectors.

The purpose of the present invention is to provide a hydrogen-releasing film and a hydrogen-releasing laminated film which are less susceptible to embrittling at an ambient operating temperature of an electrochemical element. This hydrogen-releasing film is characterized by containing a Pd—Cu alloy, and the Cu content in the Pd—Cu alloy being at least 30 mol %.

A SONOS device and a method of manufacturing the same is provided. A tunnel dielectric layer, a charge trap layer, and a charge blocking layer are formed on a semiconductor substrate, and the charge blocking layer is formed on the charge trap layer such that the charge blocking layer is relatively thicker at regions adjacent to or overlapping the source and the drain and relatively thinner at a region overlapping the channel region. A gate is then formed on the blocking layer.

The invention discloses an abdominal aorta stent. The abdominal aorta stent comprises a bare stent, a film-covered stent main body, a first film-covered branch support and a second film-covered branch stent, wherein a fixing piece which is used for fixing the bare stent on an arterial wall is arranged on the bare stent; one end of the film-covered stent main body is connected with the bare stent; the first film-covered branch support and the second film-covered branch stent are connected with the other end of the film-covered stent main body, the diameter of the first film-covered branch support and the second film-covered branch stent is smaller than the diameter of the film-covered stent main body and the length of the first film-covered branch stent is greater than the length of the second film-covered branch stent; the film-covered stent main body, the first film-covered branch support and the second film-covered branch stent respectively comprise a plurality of stent bodies and high-molecular films which cover the plurality of stent bodies, and any two adjacent stent bodies are connected through the high-molecular films; the stent bodies and the bare stent are cylindrical structures which are formed by surrounding elastic wavy supporting bodies which can retract along the radial direction. Through the arrangement, the abdominal aorta stent provided by the invention has the advantages that the operating difficulty during conveying of the stent main body for an abdominal aorta tumor can be reduced and a larger wound caused to an aorta can be effectively reduced.

The invention discloses a high-alumina direct current porcelain insulator. The insulator comprises, by weight, 10-15 parts of smolmitza, 1-5 parts of high-alumina bauxite, 30-40 parts of alumina, 5-10 parts of white plaster, 5-10 parts of potassium feldspar, 10-20 parts of Jinyang soil and 15-25 parts of Bo'ai clay. The porcelain insulator is good in mechanical performance and low in production cost, process control is easy, and the high-alumina bauxite and the smolmitza are used, so that the ball milling time is shortened, the cost is reduced and the process performance is improved. According to the insulator, 5-10% of low-sodium potassium feldspar is introduced, and the Na content in chemical components of a semifinished product is less than 0.2%, so that the insulator breakage caused by local swelling stress generated during migration of alkali metal sodium ions in an electrical porcelain material can be prevented, and simultaneously, the problems that the insulator is broken down under the long-term action of a direct current field due to the fact that electric fields are not distributed evenly caused by conducting layers of different specific resistance, which are formed inside a porcelain part during ion migration, can be solved.

An objective of this invention is to provide a proton-conducting polymer battery comprising an electrode containing a proton-conducting conductive compound as an active material and an aqueous electrolytic solution, which exhibits good battery properties and higher safety and higher reliability after reflow processing. There is provided a proton-conducting polymer battery in which protons are exclusively involved in charge / discharge, comprising a cathode, an anode, a separator and an electrolytic solution; wherein: the cathode and the anode are disposed facing each other via the separator in the electrolytic solution; electrode active materials in the cathode and / or the anode are selected from π-conjugated polymers and hydroxyl-containing polymers; and the electrolytic solution is an aqueous solution comprising sulfuric acid as an electrolyte and at least one of phosphoric acid and diphosphoric acid, wherein the concentration of the contained water is 65 wt % or less, and the concentration of the sulfuric acid is 3 wt % to 35 wt %.

A preparation method of an oxygen-stabilized yttrium fluoride film relates to a preparation method of an yttrium fluoride film. The invention solves the problems of optical constant distortion due to the lack of fluorine, caduceus film, unstable structure and poor optical performance in present preparation methods of the yttrium fluoride film. The preparation method provided by the invention comprises the following steps of: washing a ZnS substrate with the use of acetone, alcohol and deionized water, displacing the ZnS substrate on a rotating heating stage in a magnetron sputtering vacuum container, followed by vacuum-pumping and heating; blowing Ar gas into the vacuum container and carrying out anti-powder sputtering cleaning on the surface of the ZnS substrate; vacuumizing and heating after film coating, and cooling to room temperature to finish the whole process. The oxygen-stabilized yttrium fluoride film is prepared by the magnetron sputtering method, thus improving the optical constant distortion due to the lack of fluorine and simultaneously preventing the shedding and rupture of the film. The oxygen-stabilized yttrium fluoride film has good optical performance, low refractive index and excellent stability; and the extinction coefficient of the film is greatly reduced and the film is firmly adhered.

The present invention provides a laminated sheet for interior materials of vehicles. The laminated sheet includes a surface layer and an inside layer combined with the surface layer and receiving an injection resin. In particular, the inside layer includes two or more types and foaming ratios of thermoplastic elastomer in a multi-layer.

The invention discloses a surrounding rock consolidation system for reducing rock burst hazards. The surrounding rock consolidation system comprises a leveling layer, a basalt fiber cloth layer and a plurality of anchor rods. The leveling layer is arranged on the surface of surrounding rock, the basalt fiber cloth layer is arranged on the surface of the leveling layer, and the multiple anchor rods are distributed on the surrounding rock in an implanted manner. A method for implementing the surrounding rock consolidation system includes excavating rock mass, then spraying a layer of concrete on the surface of the surrounding rock in a wet manner and leveling the surrounding rock; quickly adhering basalt fiber cloth with high tensile strength along the surface of the concrete before initial set of the concrete; mounting the anchor rods and allowing the anchor rods to penetrate the basalt fiber cloth and the concrete leveling layer to be implanted in the rock mass. The surrounding rock consolidation system has the advantages that the surrounding rock consolidation system is formed by the surrounding rock, the sprayed concrete, the basalt fiber cloth and an anchor rod group, accordingly, the tensile strength of surface layers of the surrounding rock can be obviously improved, and rock plates formed after the surface layers of the surrounding rock are split off can be effectively prevented from being bent, tensioned and broken off, and rock burst can be suppressed; alternately, the rock plates of the surface layers can be used as protection shields for stopping rock burst fragments from being directly ejected towards excavation faces at the high speeds, and accordingly the rock burst hazards can be reduced.

A warming device for an IV fluid line according to the present invention includes a warmer unit and a wye type fitting with an injection site. The warmer unit includes a tube for intravenous fluid and channels containing a warming fluid to heat the IV tube. One fitting branch is connected to an intravenous fluid source, while the remaining branch houses the injection site. The injection site branch includes an injection safety member that ensures a syringe needle or other instrument is contained within the fitting to prevent rupture of the IV tube. The warming device may include an additional wye type fitting coupled to the initial fitting and including another injection site, where the fittings typically exclude the safety member. A syringe needle is inserted into the additional injection site to prevent rupture of the IV tube. In addition, the warming device may be configured for needleless injections.

Endoluminal and other as implantable prostheses are fabricated in electrospinning apparatus including a target and an applicator. A solution comprising a polymer and a solvent is directed to the target with a first electrical potential between the target and the applicator to produce a first set of fibers. The same or another solution is continued to be delivered through the applicator onto the target while applying a second electrical potential to produce a second set of fibers having a second solvent fraction, and the same or different solution may be delivered while applying a third potential difference to produce a laminated structure having at least three layers. By properly controlling the electrical potentials and solvent fractions, an adhesive layer can be formed to serve a glue or adhesive between the inner and outer layers, and a stent or other scaffold may be positioned between the inner and outer layers to form a covered stent or graft.

A flip phone includes first and second parts, and a coupler shaft pivotally coupling the first and second parts. A flexible printed circuit board is disposed on the coupler shaft, and includes an elongated main portion wrapped around the coupler shaft and left and right portion extending outwardly from opposite ends of the main portion for inserting into the first and second parts in order to establish electrical communication between the first and second parts.

The invention belongs to the field of composite material preparation, and particularly relates to a carbon nanotube conductive agent for a lithium ion battery positive electrode material and a preparation method of the carbon nanotube conductive agent. The preparation method comprises the following steps of (1) dispersing a dispersing agent, a stabilizer, an overcharge protection agent and a filmformation agent in a solvent in advance; (2) adding a carbon nanotube into the dispersing agent for full immersion; and (3) adding the mixture into a grinding machine for full grinding and dispersion.With the conductive agent prepared by the method, the conductivity of the positive electrode material can be improved, the stability of the positive electrode material also can be improved, and the cycle lifetime of the positive electrode material is prolonged.

The invention relates to a novel high-strength high alumina porcelain insulator. The novel high-strength high alumina porcelain insulator is prepared from the following raw material formula in parts by weight: 8 to 12 parts of smolmitza, 15 to 20 parts of high bauxite, 10 to 15 parts of Zhang village soil, 20 to 30 parts of aluminum oxide, 8 to 10 parts of Jingyang soil, 5 to 8 parts of white clay, 6 to 10 parts of Zuoyun soil, 5 to 10 parts of potassium feldspar, 7 to 15 parts of Qingcaoling soil, 15 to 20 parts of Boai clay, 5 to 10 parts of feldspar, 1 to 5 parts of Ninghai soil and 1 to 5parts of Xinhui soil. By adopting Jingyang soil, high bauxite and smolmitza, the ball milling time is shortened, and not only can the cost be reduced, but also the process performance can be improved;and meanwhile, the problems that different conductive layers are formed inside a porcelain part when ions migrate, leading to non-uniform distribution of an electric field and breaking down an insulator under the long-time action of a DC electric field can be solved.

A light-weight polypropylene-plant fiber composite and a preparing method thereof are disclosed. Polypropylene (PP) having high melt strength is adopted as a matrix, thus ensuring melt strength of thematrix. A plant fiber characteristic that thermal-resisting temperature of the plant fibers is 160 DEG C or below, the plant fibers are dewatered and gradually coke at a temperature higher than the thermal-resisting temperature, and the plant fibers are partially decomposed under certain pressure at certain temperature to generate gas is utilized in a processing process, and plant fibers are partially decomposed at high temperature to generate gas so as to generate micro pores, thus achieving an objective of light weight. No foaming agent is added, and the PP having high melt strength can prevent gas bubble merging and breakage, can effectively cover gas and can prevent gas from escaping from the PP matrix. The composite obtained from the two raw materials under specific processing conditions has a light weight and good noise deadening and heat insulating properties. In addition, the plant fibers have unique wheat fragrance, and a unique surface sense and good appearance quality can be obtained.

The invention discloses a cultivation method of nuisance-less eggplants. The cultivation method comprises the following steps: screening seeds, and soaking the seeds; performing field treatment; applying a base fertilizer; sowing seeds; performing field management; controlling diseases and insects; and expediting fruiting. The cultivation method disclosed by the invention is simple in operation management, achieves zero use of pesticides, fully ensures that the eggplants are green and nuisance-less, the eggplants have good disease resistance in growth, have thin and tender skins, and are high in yield, and the per mu yield is increased by 10-15% in comparison with common planting, so that the market competitiveness is improved.

A method of additively manufacturing a ceramic matrix composite material includes providing a ceramic fiber and a powdery base material for a ceramic matrix composite and layer-by-layer building up the ceramic matrix material for the ceramic matrix composite by irradiating of a powder bed formed by the base material with an energy beam according to a predetermined geometry, wherein the base material is remelted, solidified and adhesively joined to the ceramic fiber in that parameters of the energy beam are locally chosen such that in the contact region of the ceramic fiber and the powder bed, the ceramic fiber is only partly remelted.

The invention discloses a thin-wall lightweight meter cable for oil-gas engineering. The thin-wall lightweight meter cable comprises a cable core and a sheath layer coating the outer side of the cablecore, wherein the sheath layer is prepared from the raw materials in parts by weight: 60-80 parts of ethylene propylene terpolymer rubber, 40-50 parts of polyurethane rubber, 50-60 parts of nitrile silicone rubber, 6-10 parts of vulcanizer, 40-50 parts of vermiculite powder, 20-30 parts of precipitated barium sulfate, 60-70 parts of channel carbon black, 4-8 parts of octyl phenolic aldehyde tackifying resin, 40-50 parts of carbon fibers, 4-8 parts of propylene glycol polysebacate, 2-4 parts of modified soybean oil and 3-5 parts of anti-aging agent.

The invention discloses a high-strength climbing type double-splint thin shell buckle lining structure and belongs to the field of large-size smelting furnaces. A lining is divided into a plurality of partitions, wherein a metal separate backing ring or a refractory concrete isolating beam fixed on a steel shell is arranged on the edge of each lining partition; the structure of each lining partition sequentially comprises a flexible isolating layer, a lightweight insulating layer and a castable working layer from the outside to the inside; each flexible isolating layer is respectively fixed with the corresponding steel shell and the corresponding lightweight insulating layer through high-strength coating layers on two sides of each flexible isolating layer; two opposite surfaces of each lightweight insulating layer and each castable working layer are rough surfaces of which the shapes are complemented, so that each lightweight insulating layer and the corresponding castable working layer form a high-strength buckling structure. According to the high-strength climbing type double-splint thin shell buckle lining structure disclosed by the invention, the integral strength of the lining is greatly improved by using a mechanical structure formed by bulking the castable working layer and the lightweight insulating layer; the surface area of the lining at the connected part of buckles is far greater than that of a fire firing surface of each castable working layer, so that the integral shock resistance of the furnace is greatly improved, and the stability of the lining is improved.

The invention provides a method for manufacturing an inner core used for moulding of a carbon fiber composite multi-way tube, relating to a method for making a bicycle part. The method comprises the following steps of: step one, designing at least two thin-wall core pipe fittings according to shape of the inner wall of the multi-way tube, wherein each core pipe fitting is only provided with two ports and only one air pipe can be inserted; adjacent surfaces of two adjacent core pipe fittings form a butt joint surface and can be spliced into a complete inner core used for the multi-way tube moulding according to the butt joint surface, the outer surface of the inner core is the same with the shape of the inner surface of the multi-way tube, and dimension of the outer surface of the inner core is slightly smaller than the dimension of the inner surface of the multi-way tube; and any port of the multi-way tube correspond to a corresponding port of one core pipe fitting or correspond to a butt joint combination of corresponding ports of adjacent core pipe fittings; step two, respectively manufacturing the core pipe fittings; and step three, splicing the core pipe fittings into a whole according to the butt joint surface, thus the inner core is formed. The manufactured inner core can put an end to overexpansion and fracture of the air pipe, and the moulding of the carbon fiber composite multi-way tube can be guaranteed to be normal.

The invention relates to the technical field of processing of camellia oleifera, in particular to an automatic shelling device of camellia oleifera fruits. The automatic shelling device comprises a heating mechanism, a shelling mechanism and a supporting frame, wherein the heating mechanism is fixedly arranged above the shelling mechanism; a discharge end of the heating mechanism communicates with an inner chamber of the shelling mechanism; a discharge opening is formed below the shelling mechanism; the supporting frame is fixedly arranged at the bottom of the shelling mechanism; the shelling mechanism comprises a shelling box body, shelling double-roll mechanisms, a multi-aperture screen mesh and a power mechanism; incline directions of the adjacent two groups of shelling double-roll mechanisms are opposite; the multi-aperture screen mesh is fixedly and obliquely arranged in the shelling box below the bottommost shelling double-roll mechanism; and the power mechanism drives the shelling double-roll mechanisms to rotate. According to the automatic shelling device of camellia oleifera fruits disclosed by the invention, when the camellia oleifera fruits are squeezed out, camellia oleifera seeds cannot burst, so that burst of camellia oleifera seeds during the shelling process of the camellia oleifera fruits can be effectively avoided, and the quality of camellia oleifera products can be greatly improved.

The invention is a new type of bearing thermometric sensor, which comprises the temperature-sensing head, the guide sleeve, the spring, the connecting pipes and the down-leads. The temperature-sensing head is equipped with the temperature-sensing components (the heat resistance or the heat electric couple). It is characterized in that it adopts the short contacting face temperature-sensing head with hollow guide rob at the bottom and the flexible connecting pipes that can be the sealing winding spring structure or the coiled pipe structure. The effects of the inventions are: 1. avoid the falling and breaking off phenomena of the down-leads of the head when the using and transporting of the sensor; 2. overcome the breaking of the down-leads when curving of the sensor; 3. improve the sensibility.

A laminated film includes: an inner layer formed of a heat-sealable thermoplastic resin; an outer layer laminated on the inner layer; and a fragile processed portion in which at least a part of the outer layer is removed and at least a part of the inner layer is present and which has a linear shape in planar view and a Young's modulus of 2.0 gigapascals or less.

The invention provides a feed additive capable of effectively preventing and controlling pig coccidiosis, and belongs to the field of feed additives. Each 100 parts of the feed additive comprises thefollowing raw materials in parts by weight: 4-8 parts of plant polysaccharide powder, 6-12 parts of a Chinese arborvitae twig and leaf fermented product, 8-12 parts of ligusticum wallichii, 4-8 partsof radix acanthopanacis senticosi, 8-14 parts of Japanese thistle herbs or roots, 5-11 parts of medicine terminalia fruits, 4-8 parts of lactobacillus bulgaricus powder, 6-10 parts of lactobacillus reuteri and the balance of a carrier, wherein the carrier consists of wheat bran and zeolite powder in the mass ratio of the wheat bran to the zeolite powder being 1 to (1-2). According to the feed additive, coccidiosis daughter spores can be effectively prevented from being departed from sporozoite and oocysts, so that the condition that the sporozoite breaks through enterocyte to cause intestinalepithelium to rupture and bleed can be effectively avoided, and the generation of the pig coccidiosis is avoided; and besides, the feed additive also has the effect of promoting growth of pigs. The all raw materials are green, safe and free from residues, and when being applied to ration of the pigs, the breeding benefits of the live pigs can be notably increased.