59results about How to "Eliminate tightness" patented technology

The invention discloses a method for producing a voltage-bearing aluminum alloy tank body of an ultra-high voltage switch by a V-process, comprising the following steps: model making, thin film heating, thin film shaping (film absorbing), coating spraying, sandbox placing, ram-jolting by adding sand , back film covering, film loosening, core setting, box folding, pouring, removing box and shaking out. After the process is improved, an intermediate frequency furnace is utilized to melt and a crucible heat preserving furnace is utilized to modify and refine. When melting in the intermediate frequency furnace, microelements such as tombarthite and the like are replenished and a new non-stirring melting and refining technology is adopted so as to reduce oxide inclusion content in alloy liquid. Modification and refining treatment in the crucible heat preserving furnace ensures high purity degree and high component precision of aluminum liquid, and using pure aluminum alloy liquid can increase the ratio of acquiring qualified pressure-proof tank body foundry products.

The invention relates to a machine fish, wherein it is characterized in that: it comprises a fish head module sealed, left and right chest fin modules, at least two driving modules, and caudal fin; said fish head module has controller and main motor for floating the left and right chest fin modules whose main axles via movable sealing device are connected to the main motor; the left and right chest fin modules both have assist motors to drive the chest fins up and down; the axle of chest fin via the movable sealing device is connected to the assist motors; the driving module via the swing rod is connected; the first driving module via the head-tail connector is fixed on the back of fish head module; the caudal fin via the connector is connected to the back of driving module. The invention can be used in underwater detection, etc.

The invention discloses a double clamping groove lining hoop which comprises a hoop strip and a locking component, and is characterized by further comprising a lining adhered to the inner wall of the hoop strip; the lining is a double clamping groove lining comprising a first edge, a second edge and a third edge; the first edge and the third edge are symmetrically arranged; the first edge as well as the third edge comprises a transverse forced part and an inward-tilted supporting part in smooth connection with one end of the transverse forced part; the second edge is an arch part; and the two ends of the second edge are in smooth connection with the bottom of the supporting part of the first edge and the bottom of the supporting part of the third edge respectively in a circular arc-shaped manner to form two convex ridges protruding in the inner diameter direction. As the two convex ridges are arranged on the elastic lining of the hoop, when two pipes are connected through a hose pipe, the two convex ridges form double clamp grooves to reduce the stress area and enlarge pressing force to clamp the hose pipe, so as to ensure firm clamping and eliminate the impacts of poor sealing and leakage caused by high temperature difference variation of a pipeline. The double clamping groove lining hoop has advantages of convenience and fastness in construction and stable system.

The present invention relates to an adjustable electronic thermostat valve comprising an actuating means (20) provided with a rod (27) for stroking a chamber of an expendable thermal element, so that temperature at which the thermostat valve opens can be easily adjustable based on driving condition of an automobile by changing the volume of the chamber of the expendable thermal element, whereby a cooling efficiency of the engine is maintained in optimized range. As a result, emission of exhaust gas and consumption of fuel is significantly reduced.

The invention relates to a design method of an air inlet channel lip of a hypersonic flight vehicle, and belongs to the technical field of hypersonic air inlet channel application. According to the design method, an air inlet channel is arranged on an engine of the flight vehicle, and the front end of the air inlet channel is a sawtooth-shaped lip; and the sawtooth-shaped lip comprises a pluralityof lip blades, the side walls of the lip blades are connected in an end-to-end mode to form the closed sawtooth-shaped lip, the center of the sawtooth-shaped lip is taken as a revolving axis line, and the lip blades are arranged in an array mode by taking the revolving axis as an array axis. According to the design method of the air inlet channel lip of the hypersonic flight vehicle, a moving mechanism is not introduced, so that the weight and the complexity of the system are prevented from being increased, and the problems of connection, sealing, cooling, control and the like are prevented from occurring; the machining and manufacturing process is simple, the starting performance of the axisymmetric air inlet channel can be improved, meanwhile, the compression performance of the axisymmetric air inlet channel is not influenced, and the capture flow is reduced, so that the working efficiency of the air inlet channel is guaranteed, and the starting performance of the air inlet channelis improved.

The invention belongs to the field of daily chemicals, and provides a skin-calming and moisture-preserving presenile-resistant composition. The skin-calming and moisture-preserving presenile-resistantcomposition comprises the following ingredients in percentage by weight: 0.02 to 0.2 percent of dipotassium glycyrrhizinate, 1 to 3 percent of chamomilla recutita flower extracts, 1 to 15 percent ofa presenile-resistant composition, 1 to 20 percent of a humectant, 0.05 to 1 percent of a thickening agent, 0.5 to 2.5 percent of an emulsifying agent, 1 to 10 percent of an emollient and the balancepure water, wherein the presenile-resistant composition is prepared from acetyl hexapeptide-8, bifida ferment lysate, tea extracts, grape seed extracts and blackberry leaf extracts. Through the reasonable compatibility of various ingredients, the composition provided by the invention has the advantages that all ingredients achieve synergistic interaction, so that the free radical elimination efficiency is improved, and the senescence is delayed from a deep layer; the self repair capability of cells is improved; the redness is relieved; the skin barrier is repaired; the damage to the skin caused by various light sources is relieved and restored; and deep water supplementation is provided for the skin to achieve the timely senescence-resistant effect.

The invention discloses an underwater adaptive mooring cable tension device which is mounted on a cable arranging device of an underwater winch of a main floating body of a submerged buoy and comprises a rotary seat, a cable access opening, a base and tension roller trains. The rotary seat is mounted on the base, is connected with the base by a thrust bearing and a radial bearing and can rotate by 360-degree angles on the horizontal plane. The cable access opening is connected onto the rotary seat by hinge support arms, and the hinge support arms can rotate around hinge shafts. The tension roller trains are arranged in the rotary seat and the base, and a mooring cable which is fed into the underwater adaptive mooring cable tension device from the cable access opening and penetrates the rotary seat and the base can be clamped by the tension roller trains. The underwater adaptive mooring cable tension device has the advantages that the rotary seat can rotate, the hinge support arms can rotate around the shafts, accordingly, the direction of tension for pulling a floater in the cable access opening can keep in the longitudinal direction of the mooring cable, loosening, tightening and shaking of the mooring cable due to fluctuation of waves and transverse acting force which is applied to the mooring cable under the effect of sea current can be effectively eliminated, and the environmental adaptability and the severe sea condition resistance of the underwater winch can be improved.

The invention relates to a method for laminating the pole core of the generator rotor of a hydroelectric generating set before pre-pressing, belonging to the technical field of generators. The method for laminating the pole core of the generator rotor of the hydroelectric generating set before pre-pressing is that adjustment sheets are filled in the pole core, and is characterized in that: 1) a horizontal placing rack is adopted, and two parallel ribs are arranged at the upper part of the placing rack and are used to support the lower end surfaces of the pole shoes of pole laminations to enable the pole laminations to be tidy and uniform; 2) the pre-laminated pole laminations are tightly pressed, and the deviations of the dimension and the form of all parts from the required dimension and the required form are measured; 3) the adjustment sheets are added among the pole laminations pre-laminated on the placing rack; and 4) the pole core is assembled and pressed after the pole core is penetrated through a pole tie bolt and damper bars. The invention has the advantages that the method is simple, the requirements on the lamination of different types of pole laminations are satisfied, the assembling quality of the pole core is good, the production efficiency is high and the like.

Disclosed is a clothing with cup parts which has excellent breast-shaping properties in spite of being non-wire. In the clothing, the marginal edges of the fabrics (2, 3) in the right and left cups along the verge's line and the marginal edge of a support fabric (4), which is joined together with the marginal ends of the fabrics in the right and left cups, are sewed on a stretch tape (10) with making gathers (11). When worn, the gathered parts of the fabrics in the cups can be three-dimensionally shaped due to the tension of the aforesaid stretch tape.

The invention relates to a pole core press mounting device of a generator rotor of a hydro-power generating unit, belonging to the technical field of generators. The invention is characterized in that the press mounting device is provided with a support, stretching cylinders and a hydraulic transmission system, wherein the stretching cylinders are arranged at two sides of a pole core on the support, and the hydraulic transmission system is a hydraulic transmission mechanism and mechanical transmission mechanism in which the two stretching cylinders move synchronously. The invention ensures that the pole core is press mounted, laminated and penetrated in a stretching screw, satisfies the pole core press mounting requirements of a rotor of a large or medium-sized hydro-power generating unit, has high compactness and flatness requirements of the pole core, ensures the pole core assembling quality of the large or medium-sized hydro-power generating unit and improves the production and processing efficiency.

The invention discloses fibroin shower gel with whitening and skin protection effects and a preparation method thereof. The fibroin shower gel is prepared from the following raw materials: 60 to 75 parts of fibroin powder, 4 to 16 parts of ethylene glycol distearate, 1 to 4 parts of jasmine essential oil, 2 to 6 parts of lecithin, 8 to 10 parts of radix lithospermi powder, 3 to 6 parts of radix zanthoxyli extracting liquid, 5 to 8 parts of fructus gleditsiae, 5 to 10 parts of tea polyphenol, 5 to 10 parts of polyethylene glycol monostearate, 12 to 18 parts of sodium dodecyl sulfate, 2 to 8 parts of honeysuckle flower extract, 6 to 10 parts of dipotassium glycyrrhizinate, 5 to 15 parts of glycerol, 1 to 5 parts of wool grease and 30 to 40 parts of water. According to the fibroin shower gel with the whitening and skin protection effects and the preparation method thereof, disclosed by the invention, efficient nourishing components are added, so that the fibroin shower gel has the most basic cleaning effect and has moderate performance and no irritation on skin; the fibroin shower gel can be used for effectively nourishing and whitening the skin and removing a tense feeling of the skin after bathing.

The invention relates to the technical field of heat engine devices, in particular to a welded corrugated pipe type work doing unit of a heat engine. The welded corrugated pipe type work doing unit of the heat engine comprises a heater, a welded corrugated pipe, a cooling device, a rack, a hinged support and a transmission mechanism. The rack is formed by welding a square steel plate to supporting legs. The welded corrugated pipe is composed of a hollow metal pipe, a top end plate and a bottom end plate. The upper end of the hollow metal pipe is connected with the top end plate, and the lower end of the hollow metal pipe is connected with the bottom end plate. The bottom end plate is installed on the top of the square steel plate. The cooling device is installed at the bottom of the square steel plate. The heater is installed around the outer pipe wall of the hollow metal pipe. The top end plate is connected with the transmission mechanism through the hinged support. A gas medium is fed into an inner cavity of the hollow metal pipe. According to the welded corrugated pipe type work doing unit of the heat engine, because the non-frictional type welded corrugated pipe is used for replacing an air cylinder and piston structure, the problems of seal, lubrication, friction resistance and the like between an air cylinder and a piston are solved, and the machining difficulty and the production cost are lowered.

The invention discloses a coating technology of a coating of a flange sealing surface. The coating technology comprises the steps of I, carrying out sand blasting on the flange sealing surface; II, smearing the surfaces of a sealing water wave line, connecting fastening bolts and mold drawing bolts on a sealing surface of a mold with a mold release agent; III, smearing the sealing water wave line surface and the flange sealing surface with paint, enabling the middle part of the flange to form a raised peak ridge, and then scraping the paint to the flat; IV, locating the flange; V, fastening the mold and the flange together, and cleaning the overflowing paint; VI, after a coating is solidified, carrying out mold drawing; VII, detecting the flatness and profile of the water wave-shaped sealing coating of the flange sealing surface; VIII, carrying out sand blasting on the sealing surface of a matched flange; IX, smearing the surface of the flange sealing surface coating with the mold release agent; X, smearing the sealing surfaces of the flange and the matched flange with paint, and scraping the paint to be flat; XI, fastening the flange and the matched flange, controlling the thickness of the coating, and cleaning the overflowing paint; and XII, after the coating is solidified, carrying out mold drawing. According to the coating technology, pressure resistant coating protection can be carried out on the pressure bearing sealing surface, and the problem of long-acting corrosion protection is solved.

The invention discloses cane sugar bath lotion. The cane sugar bath lotion consists of sodium laureth sulfate, cane sugar, glycerine, cocamidopropyl betaine, a pummelo leaf extract, hyaluronic acid, butanediol, propylene glycol, sodium hydroxide, citric acid, methylisothiazolinone, essence and water. The cane sugar bath lotion is mild in nature and free from stimulation to skin, can eliminate harmful bacteria on the surface of skin while cleaning skin, can promote skin cell metabolism, can effectively moisturize and nourish skin, and can eliminate the feeling that the skin is tight after people bath.