46results about How to "Increased stress intensity" patented technology

The invention relates to a washing machine with a spray-rinsing function. A gap between an inner drum and an outer drum is communicated with a water channel in an impeller through a connection water channel with a water pump, rinsing water between the inner drum and the outer drum flows through the connection water channel and the water channel in the impeller and then is sprayed into the inner drum through spraying holes formed in the surface of the impeller, and water columns ejected upwards are formed in the inner drum for rinsing clothes. Through the arrangement above, the water columns flushing upwards can be constantly formed in the inner drum, correspondingly the clothes are scoured, and the phenomenon that the clothes are wound due to reciprocating inverse rotation can be alleviated, so that damage caused by winding to the clothes is avoided. Meanwhile, since the clothes are constantly turned over during clothes washing, the contact areas between the clothes and the rinsing water are increased, friction is generated among the clothes, and the rinsing effect is effectively improved. Furthermore, the washing machine is simple in structure, remarkable in effect and suitable for popularization and application.

The invention discloses a pres-stressing carbon-cloth tension system and a tension reinforcing method. The pre-stressing carbon-cloth tension system comprises a pre-stressing tension assembly, a steering shaft and a tension stand; the tension stand is hinged with a reinforced assembly to form a lever structure, the steering shaft is arranged on the resistance arm of the tension stand in a manner of rotating around the axis of the steering shaft; the power arm of the tension stand is provided with a drive assembly for driving the resistance arm of the tension stand to rotate toward the surface of the reinforced assembly; and the pre-stressing tension assembly is used for connecting a carbon cloth to be tensioned around the upper part of the steering shaft and applying a tension force onto the carbon cloth to be tensioned. The pre-stressing carbon-cloth tension system disclosed by the invention is totally suitable for engineering application environment, does not need any regulation within a certain span, can perform tensioning simply, quickly and conveniently, and does not need excavating any channels on the reinforced assembly as channels for movement of clamps. A tensioning operation does not cause damage to an original concrete structure basically; a gap is reserved between the carbon cloth and the bottom of a component during tensioning, thus friction loss caused by the contact of the carbon cloth and the component is avoided, and an adhesive is conveniently coated at the same time.

A cover plate glass strengthening method comprises the following steps: primary strengthening: cleaning the surface of cover plate glass to be strengthened, immersing the cover plate glass into ion exchange molten salt in a strengthening furnace, controlling the temperature at 350-380 DEG C, immersing the cover plate glass for 4-7 hours, and carrying out ion exchange, wherein the molten salt beinga molten liquid of more than one of potassium salt, sodium salt and lithium salt; secondary strenthening: controlling the temperature of a strengthening furnace to be 370-400 DEG C, soaking the coverplate glass into molten salt liquid of potassium salt and lithium salt with the mass fraction being 70-100:0-30, soaking is conducted for 1-3 hours, then putting the cover plate glass in a closed container to be cooled to the room temperature, so that the strengthened cover plate glass is obtained. The stress depth of the reinforced cover plate glass is 40-65 microns, the surface stress strengthis 800-1300 MPa, the warping degree is lower than 0.1 mm, and the boundary dimension expansion rate is lower than 2%.

The invention discloses an integral compound bulging process for an automotive driving axle. The process comprises the following steps of: 1) placing an opened axle housing workpiece into an external bulging mold; 2) extending the internal bulging mold into a bulged deformed area of the axle housing workpiece from an inner hole at one end of the axle housing workpiece; 3) closing the external bulging mold; 4) applying equal thrust parallel to the axial direction of the axle housing workpiece to the internal bulging mold by utilizing thrust devices at the two ends of the internal bulging mold respectively, and applying pressure perpendicular to the axial direction of the axle housing workpiece to an upper module and a lower module by utilizing a pressure generation device, wherein the thrust is decomposed into a perpendicular thrust component which acts on the upper and lower module and is perpendicular to the axial direction of the axle housing workpiece and a parallel thrust component parallel to the axial direction of the axle housing workpiece under the action of a link mechanism, bulging force on the axle housing workpiece is the resultant force of the perpendicular thrust component and the pressure, and the axle housing workpiece is bulged and deformed under the action of the bulging force; and 5) performing unloading and demolding.

The invention discloses a light emitting diode, which comprises a first electrode connected with a first semiconductor layer and a second electrode connected with a second semiconductor layer, whereinthe first electrode and/or the second electrode sequentially comprise/comprises a first reflecting layer, a connecting cushion layer and a second reflecting layer at least partially coating the connecting cushion layer, the material of the second reflecting layer comprises rhodium, platinum or ruthenium, and the first reflecting layer and the second reflecting layer are manufactured into a large-angle electrode structure through good stress characteristics, so that the photoelectric characteristics of the light-emitting diode is facilitated to be improved, and the product reliability is improved.

Belonging to the technical field of pipeline forming, the invention discloses a continuous fiber reinforced thermoplastic pipeline and a production method. The continuous fiber reinforced thermoplastic pipeline includes an inner pipe, the pipeline outer wall of the inner pipe is compounded with a reinforcing layer through an adhesive layer, the surface of the reinforcing layer is coated with an adhesive layer, and an outer protective layer is covered to the surface of the adhesive layer through hot melting extrusion. According to the invention, the process design is reasonable, the stress strength of the pipeline can be improved, and a one-step molding technology is adopted, so that the production procedures are reduced, the yield is increased while the production cost is reduced, and thelarge-scale popularization and application of the product are facilitated.

Bending moment applied to a beam causes out-of-plane deformation to a panel when the panel zone is hollow, and thereby a load bearing by a web cannot be expected in an elastic region. Since the section modulus of a beam end is limited to the section modulus of only the flange not including the web, the beam end has a low strength. Therefore, a beam larger in size which bears bending moment on the entire section of the beam must be used and an extra beam depth is required, thus causing an increase in the weight of a steel beam. As the result of various studies, it has been found that various problems could be resolved by increasing the plate thickness of a diaphragm, applying a backing plate to the top surface or the bottom surface of a beam flange, increasing the strength of the material of the beam flange, increasing the thickness of the diaphragm or the backing plate, notching a web, or hot working the bottom surface of the beam to impart prestress thereto.

The invention provides a roller coaster device, which comprises a plurality of train units which are sequentially connected, wherein the train units comprise a frame, wherein the frame is horizontallyarranged; a bridge frame, the bridge frame is arranged at the front end of the frame and is connected with the frame, the bridge frame comprises concave'-shaped connectors, two ends of each connectorare respectively provided with a vertical shaft, and the vertical shaft is used for being connected and fixed with a gear train; a tail seat, the tail seat is arranged at the central position of thetail part of the frame, a gear train which is consistent with the vertical shaft is fixed on the tail seat, the tail seat is used for mounting a spherical hinge connector, and the tail seat is connected with a plurality of train units through the spherical hinge connector. The roller coaster device has the advantages of simple structure, easy realization, capability of improving the integral stress intensity of the roller coaster, capability of respectively keeping independent rotation angles of the gear train in the direction changing or track changing process, ensuring uniform stress distribution of the gear trains, enabling the roller coaster to run on the tracks with sufficient degrees of freedom, so that the driving safety and the service life of the roller coaster device are furtherimproved.

The invention discloses a chemical strengthening method, a chemical strengthening device and chemically strengthened glass, and the chemical strengthening method comprises the following steps: preheating a raw glass sheet; carrying out chemical strengthening on the preheated raw glass sheet; and annealing the chemically strengthened raw glass sheet, and applying an external electric field in the annealing process, the direction of the external electric field being perpendicular to the raw glass sheet, and the direction of the external electric field being from the air surface to the tin liquidsurface. The chemical strengthening method provided by the invention can effectively inhibit warping of the strengthened glass.

The invention discloses a manufacturing process of high-elasticity PP cotton and the manufactured PP cotton. The manufacturing process comprises the following processing steps: respectively heating and melting a polyester raw material and a chinlon raw material; respectively filtering the molten polyester raw material and chinlon raw material; respectively feeding the filtered polyester raw material and chinlon raw material into a metering pump for quantitative material taking; feeding the polyester raw material and the chinlon raw material which are quantitatively taken into a spinneret plate respectively to be converged at a yarn outlet panel of the spinneret plate; adhering each group of converged polyester raw material and chinlon raw material through heat setting and hot pressing to form integral fiber; perforating the formed integral fiber through a perforating wire to form a through hole; enabling the integral fiber with the through holes to pass through shaping filaments capable of extending out of convex points to form concave parts; and enabling the integral fiber forming the concave parts to pass through a molding sleeve capable of extending out of convex strips to form an air duct. The manufactured PP cotton has the following beneficial effects that the compression elastic recovery rate is high, the product stress intensity is high, and the elastic recovery rate and the bulkiness are not changed after multiple times of compression and water washing.

The invention provides a long-service-life furnace burden matching method. The method is characterized in that all raw material components comprise, by weight, 20 to 30 parts of pig iron, 50 to 70 parts of scrap steel, 8 to 12 parts of foundry returns, 15 to 30 parts of silicon iron, 0.1 to 0.5 parts of a vanadium-titanium material, 0.1 to 0.3 part of carburant, 4 to 15 parts of graphite nodules and 8 to 12 parts of chromic oxide. By the adoption of the method, the materials are prepared comprehensively and matched reasonably, a microstructure made of the mixed and fused synthetic materials is high in degree of sphericity and large in grain size, the impurity content is small after screening operation, the high-temperature resistance of a blast furnace can be improved, and the tenacity and the stress intensity of the materials are high; due to the addition of a small amount of chrome, the rigidity and harness of the materials can be effectively improved, and the service life of the materials is prolonged; and due to the addition of the vanadium-titanium material, the furnace protecting and fettling effects are achieved, the use performance of the materials is further improved, and the service life of the furnace is prolonged.

Provided are a composition for depositing a silicon-containing thin film containing a bis(aminosilyl)alkylamine compound and a method for manufacturing a silicon-containing thin film using the same, and more particularly, a composition for depositing a silicon-containing thin film, containing the bis(aminosilyl)alkylamine compound capable of being usefully used as a precursor of the silicon-containing thin film, and a method for manufacturing a silicon-containing thin film using the same.

The invention discloses a concrete pile body structure and a manufacturing method thereof. The concrete pile body structure comprises a base and a concrete pile body, the base is arranged on the at least one axial end of the concrete pile body, the concrete pile body comprises concrete and at least two layers of cylindrical supporting cages, the supporting cages extend in the axial direction of the concrete pile body, the structure of the pile body adapts to the reinforcing steel bar structure, supporting of reinforcing steel bars to the pile body in the axial direction can be effectively ensured, and the cylindrical supporting cages are sleeved in a stacked manner; whole stress strength in the pile body can be effectively ensured, mutual supporting through the supporting cages is achieved, and the outer side walls of at least one pair of adjacent supporting cages and the inner sides of the supporting cages on the outer sides are fixedly connected; and through fixed connection of the side wall faces of the supporting cages on the adjacent layers, face contact between the supporting cages on the adjacent layers can be formed, the strength of the pile body structure formed through mutual arranging of the supporting cages can be further improved, and safety hidden danger in the use process can be greatly reduced.