3results about How to "Guaranteed ductility" patented technology

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.