649results about How to "Reduce tangling" patented technology

An angled tissue cutting instrument comprises an angled outer tubular member rotatably receiving a flexible inner tubular member. The inner member has a flexible region in correspondence with an angle of the outer member. The flexible region comprises a helically cut length portion of an elongate tubular body of the inner member and a continuous solid flexible surface secured to an outer surface of the body along the helically cut length portion. A method of fabricating a flexible inner tubular member involves forming a helical cut through the solid wall of a length portion of a tubular body and securing a continuous solid flexible surface to the outer surface of the body along the helically cut length portion to form a flexible region.

A method and apparatus for damping torque output from a torque converter turbine to input to a transmission. The damper includes: (a) an input device for connection to an engine; (b) a first spring set having drive springs; (c) a second spring set having secondary springs; (d) a third spring set having parallel springs; (e) a floating apparatus; and (f) an output device. Springs of the first spring set are compressible in a forward direction toward the output device as a result of torque applied to the input device and compressible in a reverse direction toward the input device as a result of torque applied by the output device. The first and second spring sets are in series between the input device and output device during a first forward compression of the first spring set, and the series is in parallel with the third spring set between the input apparatus and output device during a second compression of the first spring set. The first spring set is in parallel with the third spring set between the input apparatus and output device without the second spring set during a third compression of the first spring set. The floating apparatus is between the input apparatus and the output device and between springs of said first and second spring sets during the first forward compression of the first spring set. The method includes the steps of: (a) operating a spring set one and a spring set two in series between torque input and torque output; (b) placing a spring set three in parallel with spring sets one and two allowing more torque per degree of wind-up than in step (a); and (c) removing spring set two from series with spring set one resulting more torque per degree of wind-up than in step (b).

Storage and installation systems used in storage, deployment or retrieval of a seismic cable array include one or more baskets adapted for being stacked. Each basket is dimensioned to allocate, in an ordered arrangement, a number of seismic stations interconnected by sections of seismic cable. Corresponding methods of storing a seismic cable and deploying/retrieving a seismic cable are based on the use of baskets having an ordered arrangement of seismic stations.

The invention relates to organic silicon resin, in particular to a method for preparing hydroxyl-terminated hyperbranched polyester modified organic silicon resin. The method comprises the following steps of: adding 40 to 60 weight percent of hydroxyl-terminated hyperbranched polyester, 40 to 60 weight percent of organic silicon resin and a cross linking catalyst into a reactor; after heating the mixture for 1 to 3 hours at the temperature of 110 to 120 DEG C, warming to the temperature of 150 to 180 DEG C and heating for 1 to 3 hours; and finally, reducing the temperature to the room temperature and adding an organic solvent to regulate the solid content to the range of 60 to 70 percent so as to obtain the hydroxyl-terminated hyperbranched polyester modified organic silicon resin. The method combines the advantages of the hydroxyl-terminated hyperbranched polyester with the organic silicon resin and excellent heat resistance, low surface energy, excellent boiling resistance and excellent salt fog resistance are obtained. The resin prepared by the method disclosed by the invention can be used for preparing a coating with high temperature resistance and low surface energy.

The invention relates to a photocuring material which comprises the following components in percentage by weight: 60-98% of hyperbranched polycarbosilane, 0-35% of active diluent, 0.1-8% of photoinitiator and 0-10% of additive, wherein the hyperbranched polycarbosilane contains an unsaturated double bond, and the number-average molecular weight of the hyperbranched polycarbosilane is 300-15,000; the unsaturated double bond is acryloyloxy, methylacryloyloxy, vinyl or allyl; and the content of the unsaturated double bond in the hyperbranched polycarbosilane is 1-30% by weight. The invention also relates to an application of the photocuring material in photocuring 3D printing and an application in preparation of a SiC component. The photocuring material provided by the invention has relatively low viscosity and is convenient to spray out of a nozzle of 3D printing equipment while the curing speed is high and the shrinkage rate in curing is little.

The invention discloses a manufacturing method for a fibrous membrane of an extremely hydrophobic organic macromolecule chemical compound with an oil-water separation function in the technical field of fibrous membrane manufacturing. The manufacturing method comprises the following steps: synthetizing a copolymer with excellent electrostatic spinnability by regulating the compounding ratio of a monomer and controlling the condition of a suspension polymerization technology and by adjusting and controlling the compositions of a solution, processing parameters and the temperature and humidity conditions of environment, and spinning a copolymer solution into the fibrous membrane with the advantages of uniform and small bore diameters, high porosity, large flux and extremely hydrophobic and oleophylic properties by using an electrostatic spinning technique. The obtained fibrous membrane has the advantages that the specific surface area is large, the patterns are large, the stacking structure is proper, and the fibrous membrane is in a three-dimensional bore channel structure. Compared with an existing polymer-based oil-water separation member, the fibrous membrane has the advantages that the bore channel structure is more reasonable, the separation capacity is stronger, the separation efficiency is higher, the anti-pollution capacity is stronger, the membrane bores are not easy to block, the oil-water selectivity is stronger, the mechanical strength is higher, the flexibility and the temperature resistance are better, the preparation process is shorter, the consumed energy is little, the filtering rate is higher, and the cost is lower, so that the fibrous membrane can better satisfy the requirements of industrial practicality.

The invention relates to a process for preparing a rust-bearing rust-proof heavy-duty coating and belongs to the technical field of rust-bearing rust-proof heavy-duty coating preparation. The process comprises the following steps: 1) stirring; 2) grinding; 3) dispersing; 4) preparing a resin; 5) preparing the coating; and 6) stirring. The production process is simple and quick, and the produced coating has high permeability, high solid content and low viscosity and can passivate active and harmful iron compounds in a rust layer into harmless fillers.

The invention provides a washing method for washing machines, as well as a washing machine thereof. The washing method is characterized in that while a stirrer rotates during wash, a drainage pump pumps washing water out from a water storage bucket and jets the washing water upwards through a hollow stirrer shaft and a hollow core hole of the stirrer so as to lift washed clothes. During wash, as the drainage pump pumps the high-pressure water out from the hollow stirrer shaft and the hollow core hole of the stirrer so as to spray and lift the washed clothes, the washed clothes are effectively prevented from receiving the long-term wear of a stirrer vane, and the washed clothes are allowed to receive the wash and rinse of high-pressure water flow, the stir of the stirrer and the wash in various washing forms at the same time. The invention has the advantages of low wear, low intertwining, low noise, high cleaning rate, high washing efficiency and the like.

This invention relates to a double drive compound flow washing machine, which comprises the following parts: plane frame elements, water barrel upper ring, water barrel 9, water barrel cover 56, case elements 10, washing and drying barrel 11, balance ring 55, bottom socket 31, central socket 44, upper cover elements 61, ring elements 76, water in device, level control device, first and second washing drive flow generating device; control device, drainage device and safety protection device. When the machine works, the first flow generating device wheel generates front and back alternating plane flows and the second flow device generates upper flow to generate strong three dimension flow to peel off dirt form clothing and to hold the clothing up.

The invention discloses a method for preparing negative photosensitive polyimide which is based on 2, 2-bis<4-(2, 4-diaminophenoxy) phenyl> hexafluoropropane. The method takes the 2,2-bis<4-(2,4-diaminophenoxy)phenyl> hexafluoropropane and dihydric acid anhydride as raw materials for carrying out the polymerization reaction, hyper-branched fluoride-containing polyamic acid which takes the macromolecular chain end group as the anhydride group is obtained, the hyper-branched fluoride-containing polyamic acid is further reacted with p-hydroxyaniline or m-hydroxyaniline, hyper-branched fluoride-containing polyimide which takes phenolic hydroxyl as the end group by chemical imidization reaction is obtained, phenolic hydroxyl end-blocked fluoride-containing hyper-branched polyimide powder is obtained by precipitation, washing and vacuum drying process, and the hyper-branched fluoride-containing polyimide photosensitive material with the negative photosensitive performance is obtained by undergoing the functionalization after the dissolution. The material has high photosensitive performance, high resolution and excellent process, and the cured product has low water absorption, excellent heat resistance, dielectric performance and mechanical performance, thus having great application prospect in the field of electronic micro-electronics.

The invention discloses a fiber unfolding winding device which comprises a base, a tension detection sensing mechanism, a displacement mechanism and a winding mechanism. The tension detection sensing mechanism comprises a front guide roller, a rear guide roller and a suspension arm type upper guide roller. The displacement mechanism comprises a displacement driving motor, a sliding table, a ball screw and a limit sensor. The sliding table is installed on the ball screw. The limit sensor and a limit induction piece matched on the sliding table are matched in a limiting mode. The winding mechanism comprises a winding driving motor, a winding spindle, a winding head, a barrel, a touch roller and a radius follower. The winding spindle is connected with the winding driving motor and fixed on the sliding table through a support. The winding head is installed on the winding spindle, and the touch roller can installed on the support in a rotating mode and is in tangency with the barrel. The winding driving motor drives the winding spindle to achieve rotational motion, and further drives the barrel to rotate to finish the winding operation. The winding device is simple in operation and stable in work, the width of the unfold belt is not affected in the winding process, and the device is suitable for winding of a composite material fiber unfolding device.

The invention discloses a preparation method of high-strength polyacrylonitrile nano-composite fiber. The preparation method comprises the following steps: 1, feeding graphene into an organic solvent or a mixed solution of the organic solvent and water, evenly dispersing, feeding homopolymer or copolymer of acrylonitrile, and dissolving at the temperature of 30-120 DEG C to obtain a spinning solution; or directly mixing the homopolymer or copolymer of acrylonitrile with graphene, and then dispersing the mixture into concentrated acid or a water solution of inorganic salt to obtain the spinning solution; 2, filtering the spinning solution at the temperature of 20-80 DEG C, defoaming, and spraying the deformed spinning solution into a coagulating bath with the temperature of -40 to 5 DEG C by a spinneret plate to form nascent fiber; 3, extracting the nascent fiber, drying, and carrying thermal stretch and heat setting to obtain the high-strength polyacrylonitrile nano-composite fiber. The preparation method is simple in production technology, high in product performance and easy in realization of industrial mass production.

The invention relates to a composite fully-degradable material and a preparation method thereof. The composite fully-degradable material has a double-layer film structure and comprises a first layer film and a second layer film, wherein the degradation time of the first layer film is longer than the degradation time of the second layer film, the raw materials of the first layer film comprise a degradation agent, a heat stabilizer, a light stabilizer, an antioxidant, low density polyethylene and linear low density polyethylene, and the raw materials of the second layer film comprise polyadipic acid/butylene terephthalate and polylactic acid. According to the present invention, the composite fully-degradable material uses the double-layer structure, and various layers are prepared from the materials having different degradation characteristics and have different degradation rates, such that various parts can simultaneously achieve the degradation ending points during the actual use process of the prepared mulch film so as to significantly improve the practicality of degradation mulch film, reduce the influence of the residual film on the next crops, save the labor cost, and promote the development of agricultural productivity.

The invention discloses a septic tank special material with good processing fluidity. The septic tank special material is prepared from the following components in parts by weight: 100 parts of HDPE (high-density polyethylene); 5 to 20 parts of calcium carbonate; 1 to 10 parts of PP (propene polymer); 1 to 5 parts of naphthenic oil; 0.5 to 2 parts of zinc stearate. The invention also discloses a preparation method of the septic tank special material. The preparation method comprises the following steps: S1, mixing the HDPT, the calcium carbonate, the PP, the naphthenic oil, the zinc stearate and the SEBS, softening and fusing; S2, smashing an anti-bio agent and spraying on LLDPE (linear low density polyethylene) flux, and cooling to room temperature, so as to obtain an anti-bio microcapsule; S3, adding the anti-bio capsule obtained in S2 into the fusant of S1, and performing injection molding.

An outdoor electric power cabinet disclosed by the present invention comprises a cabinet body, a rainproof cover, a filtering device and a slag discharging groove, the rainproof cover is fixed at two corresponding sides of the top of the surface of the cabinet body, and the filtering device is fixed between the top of the surface of the cabinet body and the two corresponding sides of the inner wall of the rainproof cover. The slag discharging groove is formed in the surface of the cabinet body and is located at the bottom of the filtering device, an air inlet is formed in the surface of the cabinet body and is located at the position of the filtering device, a heat dissipation mechanism is fixed to the top of the inner wall of the cabinet body and is located at the position of the air inlet, and a magnetic block is fixed to the back face of a fan blade of the heat dissipation mechanism. The invention relates to the technical field of power devices. According to the outdoor electric power cabinet, the purposes of filtering and self-cleaning are achieved, dust and sundries can be timely filtered and self-cleaned, adhesion to the surface of a filter screen is reduced, blockage can be effectively prevented, the filtering effect is good, meanwhile, heat dissipation is facilitated, the service life of components is prolonged, and the use performance is improved.

The invention provides a pulsator washing machine and a washing control method thereof. The washing control method comprises the following steps that when the fact that water is fed into the pulsator washing machine to a first preset water level is detected, a pulsator of the plusator washing machine is controlled to rotate at a first washing beat for water supplementation washing; when the fact that the water supplementation washing time is up is detected, the plusator washing machine is controlled to perform washing in a mode of combining pulsator stirring washing and drum rotating washing until washing is finished. According to the pulsator washing machine and the washing control method thereof, clothes can be washed uniformly, the washing effect of the clothes is improved, the washing performance of the pulsator washing machine is improved, and winding of the clothes is reduced.

The invention relates to preparation of graphene oxide nanometer modified acrylate aqueous dispersion and application of the same to waterborne automobile coating, belongs to series of waterborne automobile coating, and discloses a method for preparing graphene oxide nanometer modified acrylate aqueous dispersion. The preparation and the application have the advantages that special physical and chemical performance of nanometer materials and merits of acrylate are sufficiently combined with one another, accordingly, the graphene oxide nanometer modified acrylate aqueous dispersion is excellent in performance in the aspects of mechanical properties, solvent resistance, stability and the like, formed paint films are high in gloss, good in fullness and solvent resistance and excellent in mechanical performance, the comprehensive performance can be greatly improved, environments can be protected, energy can be saved, and the graphene oxide nanometer modified acrylate aqueous dispersion is high in operability and convenient to popularize and apply and has a broad market prospect.

The invention belongs to the field of sorting devices, and particularly relates to a sorting device and a technical method before the incineration treatment of urban household garbage. A feeding apparatus, a plate conveyer, a bag breaker and a PK chain conveyer are connected with an adjustable bar vibrating screen in sequence; an oversize product discharge opening of the adjustable bar vibrating screen is connected with a charging opening of a drum screen; an undersize product discharge opening of the adjustable bar vibrating screen is connected with a charging opening of the breaker; an oversize product discharge opening of the drum screen is connected with a feeding conveying belt of a positive-pressure wind separator; an undersize product discharge opening of the drum screen is connected with a charging opening of a second magnetic separator. The invention provides the sorting device and the technical method before the incineration treatment of the urban household garbage, through which an apparatus is used for replacing manual hand picking to sort a large article when the urban household garbage is sorted, meanwhile, a flexible entanglement can be also sorted out, the labor intensity of a worker is decreased, the occurrence that the apparatus is entangled is reduced, and the work efficiency of a sorting line for the urban household garbage is improved.

The invention discloses a reactive ionic liquid modified and dispersed carbon nano tube and a method for preparing a carbon nano tube composite material. The method is characterized by particularly comprising the following steps of: modifying the surface of a carbon nano tube by using the ionic liquid with a reactive group; mixing the modified carbon nano tube with a polymer solution which contains the corresponding reactive group, and carrying out chemical reaction bonding between the reactive group of the ionic liquid and high-molecular active groups under the condition of proper temperature and/or catalyst to furthest realize the uniform dispersion of the carbon nano tube in a matrix and enhance the interface strength between the carbon nano tube and the high-molecular matrix so as to prepare the carbon nano tube composite material. The method disclosed by the invention has the advantages of simple steps, environmental friendliness, good compatibility and suitability for industrialized production. The material prepared by adopting the method disclosed by the invention keeps both flexibility and processibility of the polymer matrix and excellent characteristics of the carbon nano tube.