6results 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 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 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 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.