9results about How to "Morph coordination" patented technology

The invention discloses a heat treatment method for eliminating or inhibiting a continuous grain boundary alpha layer of a high-strength titanium alloy. The heat treatment method comprises the following steps: 1, carrying out heat preservation on the high-strength titanium alloy at a temperature of 30-50 DEG C above a phase transformation point T beta for 30-60 minutes; 2, water cooling to room temperature; thirdly, the temperature is slowly increased to 350-400 DEG C along with the furnace, and heat preservation is conducted for 90-180 min; 4, performing water cooling to room temperature; and fifthly, the temperature is rapidly increased to 510 DEG C along with the furnace, heat preservation is conducted for 120 min to 240 min, and air cooling is conducted to the room temperature. According to the method, after the high-strength titanium alloy is subjected to solution treatment, low-temperature aging treatment of slow heating and high-temperature aging treatment of rapid heating are sequentially carried out, so that a continuous grain boundary alpha layer in the high-strength titanium alloy is effectively inhibited or eliminated, strain localization or accumulation in the plastic deformation process is reduced, deformation among component phases is coordinated, and the mechanical property of the high-strength titanium alloy is improved. And the plasticity and the fracture toughness of the high-strength titanium alloy are improved, and the high-strength titanium alloy is suitable for the field of aerospace weaponry.

The invention relates to a heat treatment process for a low-temperature application precipitation hardening martensitic stainless steel forge piece. The heat treatment process comprises the following steps: S1, blanking; s2, upsetting and punching are carried out; s3, ring rolling is conducted, specifically, the blank is heated to 1100-1150 DEG C before rolling, heat preservation is conducted, and a forge piece is cooled after rolling is completed; s4, solid solution is conducted, specifically, the forge piece is heated to 830-850 DEG C for heat preservation, and then the forge piece is cooled; and S5, aging is conducted, specifically, the forge piece is subjected to first-step aging firstly, the forge piece is heated and heated to 480-700 DEG C for heat preservation and then cooled to the room temperature, and the forge piece is heated and heated to 480-700 DEG C for heat preservation in the second-step aging. The method has the advantages that the content of inverted austenite is increased through first-step aging, precipitation of NiAl and Ni3Ti is enhanced through second-step aging, and the fracture performance of the material is improved.

The utility model relates to building structure technical field, specifically disclose a large-span steel wood truss structure for roof, include: end support block, it sets up in steel wood truss structure both ends, and is connected with building foundation structure, the end support block one side is arranged as the support of adapting with butt joint truss, and butt joint truss, standard truss and arc truss connection constitute truss main body structure, the support of end support block and the installation groove inlayed connection of butt joint truss one end. This large-span steel wood truss structure for roof, the inlayed connection cooperation structure of butt joint truss and end support block is filled with structure glue, utilizes the deformation adaptability of inlayed surface friction and glue, and the initial deformation difference of steel wood interface is buffered, and the node steel bar group of positioning frame one both sides is passed through the axial force transmission of the gripping force of steel bar and component, and positioning bolt one passes through radial constraint and limits lateral deformation, and the force flow interference is avoided by the staggered distribution of both, and stress concentration is reduced.

This invention relates to the field of hydrodynamic gas bearing technology, specifically to a radial hydrodynamic air bearing, a motor, and an air compressor. The radial hydrodynamic air bearing includes a bearing housing and an arch foil. The arch foil is mounted on the bearing housing and provides support for the rotor. The arch foil has two or more segments, arranged sequentially along the axial direction of the bearing housing, and each segment is detachable from the bearing housing. According to the technical solution of this invention, the arch foil segments are arranged in an array along the axial and circumferential directions of the bearing housing. Arch foil segments with different stiffnesses can be provided in the axial and circumferential directions as needed, achieving variable stiffness of the arch foil in both directions. This facilitates differentiated bearing pressure, coordinates arch foil deformation, and improves bearing performance. Furthermore, the detachable assembly method of the arch foil significantly reduces the assembly precision requirements of the bearing and the replacement cost in case of abnormal deformation. When the arch foil is damaged, only the damaged part needs to be replaced, eliminating the need for complete replacement, saving costs and extending the overall lifespan of the equipment.

The invention discloses a large-span overhanging ridgeline reverse curved double-slope diamond lattice shell system adapting to high drop, comprising a roof structure, a concrete structure and a vertical member connecting the roof structure and the concrete structure; the roof structure is in the form of a single-ridge reverse curved double-slope structure, which extends perpendicularly to the ridgeline direction to the building boundary end as a low zone; the vertical member comprises a first lateral resistance member arranged in the low zone of the roof structure, a second lateral resistance member and an internal vertical steel column arranged inside the roof structure, and a peripheral vertical steel column arranged along the outer contour of the roof structure; the first lateral resistance member comprises an inter-column support column arranged in the corner area of ​​the roof structure, a horizontal brace connected between adjacent inter-column support columns, a cross diagonal brace connected between the inter-column support columns and located at the upper and lower parts of the inter-column support columns, and a parallel diagonal brace connected between the inter-column support columns and located in the middle area of ​​the inter-column support columns. The present application has the advantages of stable structure, convenient construction and low cost.

The invention relates to a composite stress structure for reinforcing a roof of a base concealed karst cave and a construction method of the composite stress structure. A composite stress structure for reinforcing a roof of a base concealed karst cave comprises a reinforced concrete slab, the reinforced concrete slab is located above a roof surrounding rock of the karst cave, the reinforced concrete slab is in rigid connection with the roof surrounding rock, and the two ends of the reinforced concrete slab are anchored and supported on complete bed rocks on the two sides of the karst cave. The roof surrounding rock of the karst cave and the reinforced concrete slab structure on the upper portion are rigidly connected together, the effects of coordinated deformation and common stress are achieved, the bearing capacity of the roof surrounding rock of the original karst cave is fully exerted, and the cost of engineering treatment measures is effectively reduced; according to the method, the form that the beam slab crosses the karst cave is adopted, an original karst cave drainage channel is fully reserved, pier columns do not need to be arranged in the karst cave, the influence of karst water scouring is avoided, and the whole-life-cycle structural safety of a bridge or a tunnel is guaranteed; the original ecological form of the karst cave is reserved, and the environment-friendly and economic requirements of engineering construction are met.

This invention discloses a layered design method for snow surface overlay on ice-structured load-bearing structures, relating to the field of ice and snow engineering technology. The method includes the following steps: S1, determining the design constraints and performance indicators of the snow surface overlay based on target working conditions and environmental data; S2, obtaining the microstructural parameters of the snow material to be laid, including initial porosity, ice crystal size distribution, coordination number, and contact geometry. This invention establishes a cross-scale mechanical performance evolution model to accurately capture the microscopic mechanisms of ice crystal sintering, particle creep, and fatigue damage of snow material under long-term load and temperature, solving the problem of performance prediction deviations caused by the inability of existing macroscopic models to reflect microscopic evolution. By constructing a quantitative mapping relationship between microstructural parameters and macroscopic mechanical properties, combined with thermo-coupling load history simulation, accurate performance evolution data of the overlay can be obtained.

The invention provides a high-plasticity Mo-Ce impact energy release alloy and a preparation method thereof, and belongs to the technical field of energetic materials. According to the preparation method, Mo powder is pressed into a porous framework green body by adopting a cold isostatic pressing process, then the green body is pre-sintered at a certain temperature, so that the green body has certain strength, meanwhile, Mo particles can move and diffuse to form more communicated pores, and the pores of the framework can be more uniformly and fully filled with metal Ce; furthermore, deformation among Mo particles can be coordinated during deformation, and stress concentration is reduced, so that the alloy has relatively high density and strength and excellent plasticity; compared with a W-Ce alloy, the Mo-Ce alloy provided by the invention has more excellent plasticity, so that the Mo-Ce alloy has a wider application prospect.

The invention relates to the field of construction, and discloses a stiffness-controllable piled raft foundation and a construction method thereof.The stiffness-controllable piled raft foundation comprises a foundation pile, a cavity is formed in the top of the foundation pile, pile body main reinforcements are evenly arranged in the foundation pile, support plates are evenly installed on the top of the foundation pile, and support anchor bars are evenly and fixedly connected to the bottoms of the support plates; a positioning bolt is arranged at the top of the support plate, a rigidity adjusting device is installed at the top of the support plate through the positioning bolt, a reinforcing mesh is evenly arranged in the foundation pile through pile body main ribs, stirrups are evenly arranged on one side of the reinforcing mesh, and a brick moulding bed is arranged on the outer wall of the foundation pile. The rigidity adjusting device is arranged at the top of the foundation pile, and the connecting relation between the rigidity adjusting device and the support plate, the pile body main rib, the reinforcing mesh, the stirrup and other components is reasonably designed, so that the supporting rigidity of the pile foundation is matched with the supporting rigidity of foundation soil, an adjustable connecting structure is formed between the pile top and the raft plate, and deformation between the pile and the soil can be effectively coordinated.