73results about How to "Improve machinery" patented technology

A dynamic spine stabilizer moves under the control of spinal motion providing increased mechanical support within a central zone corresponding substantially to the neutral zone of the injured spine. The dynamic spine stabilizer includes a support assembly and a resistance assembly associated with the support assembly. The resistance assembly generates greater increase in mechanical force during movement within the central zone and lesser increase in mechanical force during movement beyond the central zone. A method for using the stabilizer is also disclosed.

An inorganic composition article used in disk substrate for information recording media, with a low melting point and a high productivity, combining superior surface characteristics capable of sufficiently dealing with a ramp load system for high density recording in both an in-plane magnetic recording system and a perpendicular magnetic recording system, having a high mechanical strength capable of enduring high speed rotation and impact, and combining both a heat expansion characteristic and heat resistance corresponding to each drive component. The inorganic composition articles contain a Li₂O component and an Al₂O₃ component, with the percent by mass ratio of Li₂O to Al₂O₃ (Li₂O/Al₂O₃) being at least 0.3, include crystals, and have a compressive stress layer arranged on a surface.

There is provided a rotor for a turbo/drag vacuum pump, the rotor comprising an upstream rotor segment of the turbine type made of metal or alloy, and a downstream rotor segment of Holweck type made of composite material. The downstream segment of the rotor has a reinforcing structure made of long fibers that are distributed in a manner that varies as a function of the section under consideration: in the annular connection region connected to the upstream segment of the rotor, the fibers are inclined and/or spaced apart in order to conserve sufficient flexibility for the composite material to enable it to deform so as to track deformation of the metal of the upstream rotor segment while it is in operation; in contrast, the fibers are close together and form turns that touch in the downstream region of the skirt, thereby guaranteeing greater stiffness in order to withstand the mechanical stresses that occur during high-speed rotation of the rotor in operation. It is thus possible to make a rotor with a Holweck type skirt that is of greater diameter, thereby improving the properties of the pump.

The present invention discloses a contact structure of a low-voltage electrical apparatus. The contact structure is in a dual-breakpoint form, and comprises: two U-shaped static contacts, the U-shaped static contact enabling the current direction in the static contact to be opposite to the current direction in a movable contact; a contact bridge; two movable contacts, disposed on the contact bridge, and respectively corresponding to the two static contacts; a contact support member, disposed on the movable contacts and connected to the movable contacts; two main contact springs, symmetrically disposed under the movable contacts and forming an angle with the contact bridge; and a spring support member, disposed under the two movable contacts and connected to the two main contact springs. At a contact position of the static contact and the movable contact and at a repulsed open position of the static contact and the movable contact, the angle between the main contact spring and the contact bridge is between −β and +α.

The invention provides a preparation method of a core-shell type carrier using gamma-Al2O3 as a shell layer. The preparation method comprises the following steps of coating a substrate with a glue liquid; spraying the gamma-Al2O3 powder, and roasting at the temperature of 300 to 500 DEG C. The preparation method has the advantages that firstly, the glue liquid is applied, and then the gamma-Al2O3 powder is sprayed, so that the gamma-Al2O3 powder can be uniformly distributed at the substrate surface, and the uniformity of the thickness of the gamma-Al2O3 shell layer is effectively guaranteed; the mechanical strength of the core-shell type carrier using the gamma-Al2O3 as the shell layer is obviously enhanced, and can reach 170N per particle; the gamma-Al2O3 shell layer of the core-shell type carrier has higher specific surface area, and the specific surface area can reach 390g/m<2>; a catalyst prepared by the core-shell type carrier has higher catalyzing activity.

The invention discloses a high-flame-retardance fireproof cable made of inorganic materials. The high-flame-retardance fireproof cable comprises a plurality of wire cables, a fire-resistant layer made of inorganic materials and a flame-retardant jacket. The fire-resistant layer made of the inorganic materials is extruded on the wire cables; the flame-retardant jacket is sleeved on the fire-resistant layer made of the inorganic materials; each wire cable consists of a copper conductor and a vitrified silicon rubber insulating layer extruded on the copper conductor; and a filling layer is filled in the fire-resistant layer made of the inorganic materials. The high-flame-retardance fireproof cable is characterized in that the fire-resistant layer made of the inorganic materials comprises, by weight, 85% of magnesium hydroxide, 6% of serpentine powder, 4% of magnesium calcium carbonate, 3% of sodium silicate and 2% of chlorinated paraffin which are squeezed to form the fire-resistant layer made of the inorganic materials. The insulating layer is made of vitrified silicon rubber, and because the insulating layer has high fire resistance and the vitrified silicon rubber is vitrified at a high temperature, the insulating performance of the cable is guaranteed during spontaneous combustion of the cable and external fire disasters. Besides, as the fire-resistant layer made of the inorganic materials is totally made of the inorganic materials by cold stirring and extruding, the materials cannot be combusted during the fire disasters, and flame-retardant and fireproofing effects can be achieved effectively.

The invention discloses a closed type extrusion forging technology of a complete fiber single-throw crankshaft forge piece. The closed type extrusion forging technology comprises the following steps: medium frequency induction heating, production of a workblank through rolling of a circular blank in a cross wedge rolling machine through a cross wedge rolling die, and closed type extrusion finish forging including placing the rolled workblank in a closed type extrusion finish forging die; when an upper die (1) and a lower die (2) are closed, a left jacking rod (3) and a right jacking rod (4) move to the middle part simultaneously, and meanwhile, a middle sliding block (5) moves forwards along a groove, so as to extrude the workblank in the cavity of the closed type extrusion finish forging die until a workpiece is formed; the left jacking rod (3), the right jacking rod (4) and the middle sliding block (5) rapidly return to the starting positions, the upper die (1) is opened and the workpiece is taken out. According to the invention, no boomerang, side shearing equipment or process is required, part of the metal fibers of the forge piece is not damaged, and the degree of mechanization of the forge piece is high; with additional arrangement of the middle sliding block and the groove, the extrusion forging forming of the crank throw part of which some material is not symmetrically distributed is realized, and the bottleneck, which restricts the development of the crank throw for a long time, is broken through.

An oversized actuator and actuator assembly for a plastic vessel (or container) configured to hold a product under pressure, such as, for example, a lotion, cream, spray, ointment, gel or foam. The oversized actuator and actuator assembly are configured to be attached to what is considered to be a common, standard-sized valve cup (typically about 1.0 to 1.5 inches across) fastened to a common or standard-sized neck portion for a plastic vessel. Therefore, the actuator and actuator assembly of the present invention does not require that the shoulder of the plastic vessel to which they are attached have specialized geometry molded into the shoulder or body portions of the plastic vessel in order to hold the actuator or actuator assembly in place on the plastic vessel.

The invention relates to an artesian ejector detector, which comprises: correcting connector, sealing ring, pressure meter, oil cup cover, oil cup, red copper pad, pressure meter connector, oil cup base, fixing nut, steel ball, sealing pad, valve base, plug muffle, piston, positioning screw, machine base, spring, baffle ring, piston support disc, lever, pin, base, screw, and handle, wherein the oil cup base is connected to the oil cup to be arranged at the upper end of oil inlet; the through hole of oil cup base is Phi 4-20mm. Since the oil cup is at the upper end of oil inlet, it uses artesian method, and it enlarges the oil inlet, the piston will contain oil always, to lubricant the piston and plug muffle, without dead clamp, to improve the reliability and 300% of producing efficiency. The invention can improve the detecting quality and the service life.

The invention discloses a water-resistant and anti-aging synthetic rubber for color sorters, which is prepared from the following raw materials in parts by weight: 40-50 parts of ethylene propylene terpolymer, 30-40 parts of a butadiene rubber, 2-5 parts of talcum powder, 1-3 parts of aluminum hydroxide, 20-30 parts of super light silica, 2-4 parts of diethylene glycol, 1-2 parts of an accelerator TETD, 2-3 parts of an antiager A, 20-40 parts of N220 carbon black, 3-4 parts of styrene, 1-3 parts of m-xylylenediamine, 2-4 parts of 3-aminopropyltrimethoxysilane, 1-3 parts of paraffin wax, and 10-12 parts of modified diatomite. The synthetic rubber disclosed by the invention replaces a common spring used in a vibrator of an existing color sorter so as to achieve a better shock-absorbing effect; and the 3-aminopropyltrimethoxysilane added in the synthetic rubber disclosed by the invention can enhance the cohesiveness of the synthetic rubber, increase the mechanical, electrical, water resistant and anti-aging properties and the like of products, and improve the wettability and dispersity of filler in polymers.

The invention discloses a jointing material for ladle nozzle brick cups, which is prepared from the following components in parts by weight: 1 part of adhesive, 0.4-0.9 part of curing agent, 1.8-2.4 part of powder, 0.2-0.6 part of modifier and 1.8-2.4 parts of diluter. The powder comprises the following components in parts by weight: 1 part of magnesite, 0.5-1 part of graphite, 0.3-0.6 part of silicon carbide and 0.3-0.6 part of magnesia alumina spinel. The product obtained by sintering the jointing material has the advantages of high volume density, low porosity and low possibility of bleed-out and seepage, and has excellent binding property, erosion resistance and mechanical properties at high temperature.

The invention provides a nylon composite material and a preparation method thereof. The nylon composite material is prepared from nylon 6 and fluorocarbon materials as raw materials. The nylon composite material prepared by the preparation method provided by the invention has the advantages that the dispersibility of a system is improved, the mechanical properties of the material are improved, andthe mechanical, friction-resistant, heat-resistant, self-cleaning, electrical-insulation and water-repellent properties of the nylon composite material are effectively improved.

The invention discloses a biological sponge based on acellular dermal matrix and a preparation method thereof. The biological sponge is made of an acellular dermal matrix as a raw material, and Ca2<+>and fa-PEG are used for cross-linking. The biological sponge prepared by the invention has a porous structure, has pores which communicate with one another, and has a three-dimensional structure similar to human skin tissue, can enable body tissue cells to grow rapidly, has good plasticity, and can be prepared into different shapes as needed so as to meet the needs. The biological sponge of the invention is an advanced tissue engineering scaffold material, contains rich growth factors, has good biocompatibility, is more conducive to the growth of Sertoli cells, can not only be used for woundrepair, but also is an excellent tissue engineering skin scaffold material, and can be used for repairing skin defects and preparing tissue engineering skin.

The invention provides a foaming agent used for a process of making foamed glass from CRT screen glass. The foaming agent comprises Sb2O3 and an oxidizing agent. The oxidizing agent is nitrate. The main reaction mechanism is: Sb2O3+2[O] to Sb2O5 to Sb2O3+O2, wherein the Sb2O3+2[O] to Sb2O5 is low temperature section reaction, and the reaction temperature is below 600DEG C; the Sb2O5 to Sb2O3+O2 is high temperature section reaction, and the reaction temperature is over 700DEG C, the nitrate is one of sodium nitrate, potassium nitrate, magnesium nitrate and calcium nitrate, or a mixture of multiple components. For the foaming agent, Sb2O3 and the nitrate are in a mass ratio of 7:1-5:1, and mass of the foaming agent added during production accounts for 0.05-0.4% of the total raw material mass. The foaming agent provided by the invention can generate evenly distributed bubbles with similar volume sizes in the glass matrix generating, and has great help for improving the mechanical, temperature and optical properties of foamed glass.

A polyurethane polyol, and a preparation method and application thereof. The method comprises the following steps: (1) carrying out a reaction on phosphorus oxychloride, epichlorohydrin, a first acidic catalyst and an inert solvent in a first microchannel reactor to obtain a chloroalkoxy phosphorus compound; (2) carrying out a reaction on the chloroalkoxy phosphorus compound, glycidol, a second acidic catalyst and an inert solvent in a second microchannel reactor to obtain a hydroxy compound; (3) carrying out a ring-opening reaction on the hydroxy compound, epoxy vegetable oil, a basic catalyst and an inert solvent in a third microchannel reactor to obtain a vegetable oil polyol; and (4) carrying out an addition polymerization reaction on the vegetable oil polyol, propylene oxide and an inert solvent in a fourth microchannel reactor to obtain the polyurethane polyol.

The invention provides a preparation method of a core-shell type carrier using TiO2 as a shell layer. The preparation method comprises the following steps of mixing silicon sol, aluminum sol, titanium sol, sesbania gum, sodium carboxymethylcellulose and water into a glue liquid; coating a substrate with the glue liquid, spraying the titanium dioxide powder onto the exterior of the glue liquid, and roasting. The preparation method has the advantages that the TiO2 powder is uniformly distributed to the substrate surface, the uniformity of the thickness of the TiO2 shell layer is guaranteed, and the permeating of active ingredients onto the substrate is avoided; the mechanical strength of the core-shell type carrier using the TiO2 as the shell layer is obviously enhanced, and can reach 170N per particle.

The invention discloses a preparation method of a decellularized derma matrix of a human source. The preparation method specifically comprises the following steps: taking stored human source skin; eliminating subcutaneous attached fat ingredients; cleaning and disinfecting by using iodine and ethyl alcohol, after that, repeatedly soaking and washing the skin by using a hypotonic solution; treatingby using a Dispase II solution overnight; removing epidermis, and after that, washing by using normal saline, thus acquiring derma; treating by using a hypertonic saline solution; washing by using the normal saline; treating by using a decellularizion solution in a dialysis device, thus acquiring the decellularized derma matrix; washing by using the normal saline, to obtain the decellularized derma matrix of the human source. The preparation method is simple and convenient, adopts a simple and reliable production process, is capable of improving production efficiency, reducing production cost, and reducing environment pollution in the greatest degree; in addition, the obtained decellularized derma matrix reserves a skin basement membrane, and is beneficial to adhesion and multiplication of cells; at the same time, the decellularized derma contains abundant growth factors, so the decellularized derma matrix has good biocompatibility, and is more beneficial to supporting growth of the cells.

A hand-held power tool has a housing and a drive motor arranged in the housing. A blower wheel is provided, wherein the housing has at least one area provided with openings allowing passage of air conveyed by the blower wheel. A protective device is arranged on an exterior wall of the housing, wherein the protective device has a damping area and the damping area protects the housing in the area provided with the openings from mechanical impact loads.