6results about How to "Prevent deformation and cracking" patented technology

The utility model discloses a kind of propaganda leaflets with wear-resistant structure, it is related to propaganda leaflet field.The utility model includes leaflet main part, the back side of leaflet main part is rotatably installed with propaganda rotating plate by rotating buckle, a plurality of single information printing plate are provided on the propaganda rotating plate, the surface of leaflet main part is provided with through slot, any single information printing plate is opposite with through slot position, the utility model is connected by rotating buckle with leaflet main part hinged, the rotation switching of information plate is realized instead of traditional folding, avoid structure tear, simultaneously, single information printing plate is protected in the interlayer space formed by leaflet main part and propaganda rotating plate, reduce the wear and tear of printing surface caused by physical contact, first, annular arrangement single information printing plate and through slot linkage, ensure that the rotation process is balanced and stable and simplify operation, simultaneously, information printing surface is designed to the inside of leaflet main part, isolated external pollution, prolong content clarity.

This invention discloses a magnesium-lithium alloy cabin structure component and its forming method, belonging to the field of magnesium-lithium alloy forming technology. The method includes the following steps: S1. Pre-treatment of the magnesium-lithium alloy ingot, followed by free forging or extrusion to obtain a billet; S2. Die forging the billet and air-cooling it to room temperature to obtain a forging; S3. Holding the forging at 270~290℃ for 4~6 hours, then quenching it in cold water and performing T5 heat treatment; finally, aging strengthening by holding it at 180~220℃ for 8~12 hours. The forming method of this invention improves product uniformity through pre-treatment and enhances product strength and toughness through heat treatment. This forming method has broad application prospects and is expected to be industrialized.

This invention relates to the field of architectural decoration construction technology, specifically a type of HPC panel for exterior decorative styling with a steel truss back. The panel includes an HPC board, connecting components, embedded components, and several truss risers. A steel truss structure, consisting of truss risers and combined beams, is installed on the back of the HPC board via the connecting components and embedded components. This avoids the later construction problems associated with splitting the HPC board into multiple pieces. The embedded components are then connected to the steel truss through a designed structure, improving the stability of the support connection. For example, the segmented arrangement of long angle steel provides stress relief gaps for the HPC board, preventing cracking and deformation. Distributed first short angle steel, long angle steel, second short angle steel, and supporting square tubes improve the multi-point stress support of irregularly shaped HPC boards, enhancing support stability. Furthermore, the assembled steel truss structure, combined with the building's main structure connectors, allows for the installation of various shaped HPC boards in a unified manner with the building structure.

The utility model discloses a kind of movable arm crossbeam and loaders in the engineering machinery technical field, wherein the loader includes fuselage, movable arm is equipped on the fuselage, movable arm drives movable arm crossbeam to move.Movable arm crossbeam includes including beam body and support plate.The beam body is long box structure with internal hollow.Multiple support plates are evenly spaced along the length direction of beam body, and positioning hole for beam body is equipped on support plate and support plate is fixedly connected with beam body.When movable arm drives movable arm crossbeam to move, support plate is evenly applied to beam body by positioning hole on external force, so that stress does not overly concentrate in the partial of beam body and cause movable arm crossbeam partial cracking failure.The beam body is complete long box structure, with good anti-deformation ability.Effectively improve the service life of movable arm crossbeam.

The utility model discloses a kind of dry quenching coke oven bracket reinforcement mechanism, it is related to dry quenching coke oven technical field.The utility model includes bracket body, bracket body is installed on external support frame, two arc-shaped support plates are installed in the bracket body circumferential surface, two arc-shaped support plates are combined to form support ring and are arranged in the bracket body circumferential surface, bracket body circumferential surface detachably installs steel frame support group, steel frame support group includes two arc-shaped limit plates, two arc-shaped limit plates are combined to form limit ring and are installed in the bracket body circumferential surface, the bottom of arc-shaped limit plate is installed with several oblique reinforcing rods, and oblique reinforcing rod and arc-shaped limit plate are connected by bolt.The utility model is through the assembly type design of arc-shaped support plate, arc-shaped limit plate and arc-shaped positioning plate three-layer ring structure, can be adapted to larger bracket body, and simultaneously through the dynamic adjustment of arc-shaped positioning plate by positioning screw rod, the applicability of support structure is improved.