4results about How to "Reliable manufacturing" patented technology

The application relates to a rescuer protection device which comprises a connecting rod and two fixing mechanisms, the two fixing mechanisms are arranged at the two ends of the connecting rod respectively, the two fixing mechanisms each comprise a fixing base and a fixing suction cup, the two fixing bases are connected with the two ends of the connecting rod respectively, and the two fixing suction cups are fixedly arranged in the two fixing bases; when the protection device is used, the two fixing suction cups are adsorbed and fixed on the two side walls, and a safety rope is bound and fixed on the connecting rod; when a rescuer needs to quickly deploy emergency rescue, the two fixing bases are respectively opposite to the two side wall bodies of an elevator door, then the two fixing suction cups are adsorbed and fixed on the two side wall bodies of the elevator door, so that the manufacturing of a temporary binding position is completed. The application has the effect that the protection device can quickly manufacture reliable binding positions in various emergency rescue environments.

The invention discloses a manufacturing method of a large-size heterogeneous material hybrid frame, a front section beam and a mounting seat are made of high-strength steel or hot forming steel and are formed by combining electric arc additive materials with inserts in an embedded mode, and the rear end of the front section beam is machined to form an outer inserting end; the middle-rear section beam is made of aluminum alloy and is formed by electric arc additive forming, and the front end of the middle-rear section beam is machined to form an inner inserting end; the shape of the outer wall of the inner inserting end is matched with the shape of the inner wall of the outer inserting end, the inner inserting end and the outer inserting end are connected in an inserting mode, self-piercing riveting connection is adopted in the circumferential direction of the inserting connecting positions, epoxy glue is coated between the connecting faces of the inserting connecting positions to form a glue layer, and a longitudinal beam of the frame is formed. The mounting base is attached to the top face and the outer side face of the longitudinal beam through the inner side face of the L-shaped structure, and the mounting base is connected with the attaching face of the longitudinal beam through a high-strength bolt; reliable manufacturing of the steel-aluminum hybrid frame is achieved, light weight, high strength and low cost of the frame are achieved, and the steel-aluminum hybrid frame is particularly suitable for large-size frames, needing light weight and high strength, of automobiles, rail transit, special equipment and the like.

A cross-band multistage adjustable radar wave-absorbing structure, a design method and a preparation method belong to the technical field of electromagnetic wave regulation and control. The cross-band multistage adjustable radar wave-absorbing structure is prepared by using a photoetching process and a magnetron sputtering process, can realize absorption of a specific wave band under S / C / X wave bands, and sequentially comprises a patterned microwave absorbing layer, a chalcogenide phase change material layer, a heat bearing layer, a metal electrode layer and a flexible dielectric layer. The metal-insulating state conversion of the chalcogenide phase change material is realized by controlling the conductivity of the chalcogenide phase change material, the Fermi level of the chalcogenide phase change material is adjusted by controlling the chalcogenide phase change material, multi-band absorption adjustment is realized, perfect absorption is realized at multiple specific frequency points, and a certain angle insensitivity characteristic is possessed. Meanwhile, the structure of the chalcogenide phase change material layer is simple, mass production and processing requirements are met, the application of the phase change material in the GHz field is expanded, and the design is flexible, electrically adjustable, and widely applied.