12results about How to "Guaranteed ductility" patented technology

The utility model discloses an end telescopic airing structure, an airing assembly and a clothes airing machine, and belongs to the field of clothes hangers. The end telescopic airing structure comprises two fixing rods arranged in parallel and telescopic rods arranged at the ends of the fixing rods, the two ends of the two fixing rods are connected through fixing rod bases, and the extending ends of the telescopic rods located on the same side are connected through telescopic rod bases. And a flexible sheet which can be unfolded along with the extension of the telescopic rod is arranged between the fixed rod seat and the telescopic rod seat on the same side. According to the utility model, the cross rod between the telescopic rods is driven by the flexible sheet to be linked with the extension action of the telescopic rods, a complicated linkage structure does not need to be designed in the telescopic rods, the structure is simple, and the manufacturing cost is low; after the flexible sheets are unfolded, an airing platform can be formed, the span of the unfolded flexible sheets can be reduced through the transverse rods, the supporting effect on the flexible sheets is achieved, and the airing bearing capacity of the flexible sheets can be improved; and the cross rod can be used as a mother and baby rod to clamp and hang small clothes, so that the clothes airing machine has various small clothes airing modes, and the practicability of the clothes airing machine is further improved.

The present invention relates to the field of wheel hub forging, specifically an aluminum alloy wheel hub forging device, including a main body, a rectangular groove is provided on the front end outer surface of the main body, a workbench is fixedly installed on the inner lower end outer surface of the rectangular groove, a hydraulic head is arranged at the center position of the inner upper surface of the rectangular groove, and the upper end of the hydraulic head is slidably connected to the main body 1; a wheel hub mold is fixedly connected to the center position of the upper end outer surface of the workbench, and three groups of arc plates are evenly fixedly installed in an annular shape on the upper end outer surface of the workbench near the wheel hub mold. The present invention uses a flame spraying mechanism to cooperate with the arc plate to evenly distribute the flame spraying mechanism around the metal blank, so that the metal blank is evenly heated, so that the metal blank can maintain good ductility at all positions, avoiding the problem of increased working pressure of the forging press due to reduced ductility of the metal blank, and at the same time, the ductility of the metal blank is well maintained, which also improves the yield rate of wheel hub forging.

The application discloses an austenitic structure steel and a preparation process thereof, and belongs to the technical field of metal materials. The Nb and N element content in the austenitic steel should satisfy: Lg([N][Nb])<-1.5 and -1.5 The precipitate in the austenitic structure steel is mainly nitride, the size of the nitride is smaller than 200 nm, and there is no large-size primary MX phase precipitate. Through the steel composition and process control, the austenitic structure steel is more reasonable in the solid solution stage dispersion nitride precipitate size and distribution, the precipitation strengthening effect is improved, and the low-temperature strength of the austenitic structure steel is improved, meanwhile, the generation of the primary MX phase in the solidification stage is reduced, and the toughness and plasticity of the austenitic structure steel in the super-low temperature environment are ensured.

The utility model provides a riding headgear which comprises a headgear body and headgear side portions, the two headgear side portions are connected with the left side of the headgear body respectively, a ventilation portion is connected to the lower portion between the front sides of the two headgear side portions, the lower sides of the two headgear side portions are both connected with a first sunshade portion, and the lower side of the ventilation portion is connected with a second sunshade portion. The rear side of the first sunshade part is connected with the edge of the rear neck of the corresponding side of the head cover body, and the two sides of the second sunshade part are connected with the first sunshade parts on the two sides respectively. One piece of the head sleeve main body covers the head top, the back side of the head and the back neck, the two pieces of the head sleeve side parts cover the side surfaces of the head, and the two pieces of the first sunshade parts cover the two side surfaces of the neck; the other piece of cloth covers the mouth and the nose; the other piece of cloth covers the front of the neck; the head and neck curve of a wearer is better matched; the sewing line coincides with the mandibular line of the head of the human body, so that the neck part of the head sleeve begins to contract only when the mandibular line reaches, the head sleeve can be kept to be attached to the neck, and the wearing comfort can also be guaranteed.

The invention relates to the technical field of steel shear walls, in particular to a design and calculation method of an assembly type built-in channel steel grid shear wall which is mainly composed of a lateral force resisting system framework and a decorative plate. The lateral force resisting system framework comprises channel steel inclined stand columns, H-shaped steel stand columns, H-shaped steel beams, bolts, connecting steel bars and welding nails, the H-shaped steel stand columns and the H-shaped steel beams are connected to form a frame, the channel steel inclined stand columns are obliquely arranged and crossed to form a grid shape to be fixedly installed in the frame, and the U-shaped connecting steel bars and the welding nails are welded to the outer side of the frame at intervals. According to the design and calculation method of the fabricated built-in channel steel grid shear wall, according to design and calculation of the shear wall, a shear stiffness formula and a bending stiffness formula are deduced, a calculation formula of displacement is given, the optimal inclination angle range of a built-in channel steel inclined stand column is given to be 35-60 degrees and the optimal angle of 45 degrees theoretically, and finally the sectional area A is calculated.

The utility model discloses an asphalt ductility detection device for highway engineering, and relates to the field of asphalt ductility detection, the asphalt ductility detection device comprises a plate surface, the upper end of the plate surface is fixedly connected with a bracket, the upper end of the bracket is clamped with a collection box, the upper end of the plate surface is fixedly connected with an adjusting assembly, the other end of the adjusting assembly is fixedly connected with a containing box, and the containing box is fixedly connected with the bracket. The containing box is located over the collecting box, the adjusting assembly comprises an adjusting column arranged at the upper end of the plate face, an adjusting groove is formed in the front face of the adjusting column, and an adjusting screw rod is rotationally connected into the adjusting groove. By the adoption of the structure, the adjusting threaded part slides on the surface of the adjusting threaded rod under rotation of the adjusting threaded rod, the adjusting threaded part drives the adjusting connecting rod to move while moving so that the containing box can be driven to move, and therefore the effect of adjusting the distance between the collecting box and the containing box can be achieved.

The utility model discloses sports underwear which comprises a front piece, a back piece and a back piece. The two shoulder strap front parts are connected with the front piece; the back piece corresponds to the back, the spine and the back shoulder of the human body, is in a butterfly wing shape and is provided with a supporting part and two side wing parts; the supporting part corresponds to a human spine and extends along the spine direction; the two side wing parts are symmetrically distributed on the two sides of the supporting part and connected with the supporting part, extend to the rear shoulder part in the moving direction of the back shoulder blade to form the shoulder strap rear part and are connected with the shoulder strap front part. The two back pieces correspond to the positions from the ribs to the armpits of the human body and are connected with the front piece and the back piece respectively; the front piece, the front portions of the shoulder straps and the rear piece are all made of main material cloth, the back piece is made of high-elasticity cloth, and elasticity of the back piece is larger than that of the main material cloth. The sports underwear provided by the utility model can fully cover the movement range of shoulder blades, provides stable support and protection for a user, ensures the ductility of the back part of the underwear in a sports process, and limits the excessive deformation of the back part of the underwear to generate slippage.

The invention discloses a daubing yogurt and a preparation method thereof, and the daubing yogurt comprises 60-70 wt% of cheese and 30-40 wt% of yogurt; in the raw materials of the cheese, 4-8% of acetylated distarch phosphate is adopted to replace emulsifying salt; acetylated distarch phosphate accounting for 8-15% of the total weight of the yoghourt is added into the raw materials of the yoghourt. According to the preparation method, the ductility of the finally prepared sour cheese can be guaranteed, the performance requirement of smearing can be met, meanwhile, it is guaranteed that the finally prepared smearing sour cheese does not have the problem of water-emulsion separation in the shelf life, the stability of the smearing sour cheese is guaranteed, and the prepared smearing sour cheese further has better taste and is suitable for being used in the market. The effect is very obvious.

Disclosed is a composition comprising: a) 30% by weight or more of one or more post-consumer recovered polycarbonates, b) 5% by weight or more of one or more original polycarbonates, c) one or more silicon compounds having a branched structure and an organofunctional group, d) one or more anti-drip agents, e) one or more organometallic salts, e) one or more inorganic salts, e) one or more inorganic salts, e) one or more inorganic salts, e) one or more inorganic salts, e) one or more inorganic salts, e) one or more inorganic salts, e) one or more inorganic salts, e) one or more inorganic salts, and e) one or more inorganic salts. F) one or more carbon-based particles, metals or metal oxides, and g) one or more buffer compounds, alkali metal phosphates, where the weight percentages are based on the total weight of the composition. Methods of making such compositions and molded articles molded from such compositions are disclosed.

The invention belongs to the technical field of comprehensive utilization and preservation of agricultural by-product resources, and particularly relates to capsicum straw nanocellulose hydrogel as well as a preparation method and application thereof. The capsicum leaf essential oil-loaded capsicum straw nanocellulose hydrogel provided by the invention is prepared from polyvinyl alcohol, sodium alginate, capsicum straw nanocellulose, capsicum leaf essential oil Pickering emulsion and water. Due to the unique fiber network structure of the capsicum straw nanocellulose, the hydrogel forms a more uniform and interconnected porous structure, has a huge specific surface area, is distributed with abundant active sites, and can efficiently load and stably release active substances such as capsicum leaf essential oil and the like. The capsicum leaf essential oil-loaded capsicum straw nanocellulose hydrogel provided by the invention has excellent oxidation resistance and mechanical properties, also has good water absorption and water retention capacities, and can create a suitable moist environment, so that water loss of fruits and vegetables is avoided, and rotting caused by excessive moisture is avoided, thereby effectively prolonging the shelf life of the fruits and vegetables.

The utility model discloses a copper foil type solar cell photovoltaic solder strip, and belongs to the technical field of solar cell photovoltaic solder strips. The copper foil type solar cell photovoltaic solder strip comprises a cell photovoltaic panel body, the surface of the cell photovoltaic panel body is provided with a flat strip body, the interior of the flat strip body is provided with a conductive wire, the surface of the conductive wire is provided with a copper foil strip, the surface of the copper foil strip is coated with a tin-coated layer, and the surface of the tin-coated layer is provided with an anti-oxidation layer. According to the copper foil type solar cell photovoltaic solder strip, the anti-oxidation layer is arranged on the surface of the tin-coated layer, the anti-oxidation layer is made of the modified nylon material, the surface of the tin-coated layer is uniformly coated with the anti-oxidation layer, and the modified nylon material has the advantages of light weight, high ductility and electrical insulation performance, so that the tin-coated layer is effectively prevented from reacting with moisture in air; the performance of the tin-coated layer is ensured, the flexibility and tensile strength of the solder strip are maintained, and the service life of the photovoltaic solder strip is further prolonged.

The invention provides a medical biological magnesium neodymium silver scandium rare earth magnesium alloy material and a preparation method and application thereof. Pure magnesium serves as base alloy, rare earth neodymium, scandium and silver elements are added according to a certain matching relation, and the biomedical rare earth magnesium alloy material which has a specific structure and a microstructure and contains a dynamic recrystallization eutectic phase hexagonal gamma phase Nd2Ag3Mg14 and an orthogonal structure phase NdAgMg11 is prepared. The biomedical rare earth magnesium alloy provided by the invention is excellent in strength and ductility, excellent in processability, degradable and good in biological safety and biocompatibility. The dynamic recrystallization eutectic phase improves the antibacterial ability, avoids inflammatory response of organisms, promotes cell growth and proliferation at the same time, further stimulates bone growth, shortens the recovery time of patients, can meet the requirements of being used as a medical implant material and processed into related devices, and is a degradable biomedical light magnesium alloy material.