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8results about How to "Reduce contact gap" patented technology
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Steel ladle nozzle with composite structure
ActiveCN222429253UReduce secondary oxidationReduce contact gapMelt-holding vesselsMolten steelUpper segment
The utility model relates to the technical field of steel ladle nozzles, in particular to a steel ladle nozzle with a composite structure, which comprises a nozzle body and a long nozzle, and is characterized in that the nozzle body comprises an upper section and a lower section, the upper section is cylindrical, the lower section is hemispherical, the upper section and the lower section form a whole, and a liquid outlet is formed in the middle of the nozzle body; a pouring opening is formed in the long nozzle and comprises a connector section and an extending section, the connector section is in an arc shape matched with the radius of the lower section, and the extending section is located below the connector section. The pouring gate can be in contact with the surface of the pouring gate no matter when the inclination degree of inclined pouring is small or vertical pouring is performed, so that a contact gap is small, and secondary oxidation of molten steel is reduced.
Owner:QINGDAO RUIXINGTAI NEW MATERIAL CO LTD
Pretreatment device for high-performance silicon nitride material
ActiveCN222305614UReduce contact gapImprove uniformityRotary stirring mixersTransportation and packagingRotational axisElectric machine
The utility model discloses a pretreatment device for a high-performance silicon nitride material. The pretreatment device comprises a stirring tank; the adjusting assembly comprises a rotating shaft, a stirring fan, a mounting groove, a spring, a connecting block, a connecting groove, a through hole, a connecting shaft and a pressing roller, the rotating shaft is rotatably mounted in the stirring tank, the stirring fan is fixed to the outer surface of the rotating shaft, the mounting groove is formed in the lower surface of the stirring fan, the spring is fixed in the mounting groove, and the connecting block is fixed to the lower end of the spring. The connecting grooves are formed in the lower surfaces of the connecting blocks, the through holes are formed in the two sides of the outer surfaces of the connecting blocks, the connecting shafts rotationally penetrate through the through holes, and the pressing rollers rotationally penetrate through the outer surfaces of the connecting shafts. According to the utility model, through the cooperative work of the electric push rod and the motor, the stirring fan and the compression roller can more effectively act on large-particle raw materials, crush the large-particle raw materials and mix the large-particle raw materials with other raw materials, so that the stirring efficiency is improved.
Owner:SHANDONG DECI SEMICONDUCTOR NEW MATERIALS CO LTD
A multi-segment spliced metal heat sink
This utility model discloses a multi-segment spliced metal heat sink, comprising multiple detachably connected metal heat sink segments. Each metal heat sink segment includes a main substrate and heat dissipation fins vertically disposed on the surface of the main substrate. Adjacent metal heat sink segments are connected by a convex-concave mating structure. The convex-concave mating structure includes a boss at the rear end of the preceding metal heat sink segment and a groove at the front end of the following metal heat sink segment. The boss and the groove form an interference fit. The contact surface between the boss and the groove is coated with a thermally conductive adhesive layer with a thickness of 0.05-0.2mm. The multi-segment detachable design allows for flexible combination of lengths to adapt to different needs, saves space during transportation, and reduces costs by requiring only the replacement of damaged segments during maintenance. The convex-concave mating structure combined with the thermally conductive adhesive layer, along with the snap-fit mechanism working in tandem with the convex-concave structure, reinforces the connection from the vertical direction, preventing loosening due to vibration and ensuring stable heat dissipation.
Owner:DONGGUAN CHUNKE HARDWARE ELECTRONICS CO LTD
Connecting piece
Owner:SHANDONG SHENGDU NEW MATERIALS TECHNOLOGY CO LTD
Insulation board
The utility model discloses an insulation board, and belongs to the technical field of constructional engineering. The heat preservation plate comprises a heat preservation layer, a connecting piece connected with the heat preservation layer and a steel wire mesh connected with the connecting piece. The first connector and the second connector are located at the two ends of the connecting rod respectively, and the first adjusting fixing head and the second adjusting fixing head are arranged on the inner side of the first connector and the inner side of the second connector respectively. Each of the first adjusting fixing head and the second adjusting fixing head comprises a circular fixing disc and an arc-shaped section fixedly connected with the circular fixing disc; a pouring through hole is formed in the arc-shaped section; spiral convex grains extending in the length direction of the connecting rod are arranged at the end of the connecting rod, and spiral concave grains matched with the spiral convex grains are arranged on the inner side of the through hole of the circular fixing disc; connecting consolidation hooks are arranged on the contact face of the circular fixing disc and the heat preservation layer, and connecting fixing grooves are formed in the heat preservation layer. According to the device, the stability between the connecting piece and the thermal insulation layer and the concrete pouring uniformity are enhanced, and the quality of a poured wall is guaranteed.
Owner:SHANDONG SHENGDU NEW MATERIALS TECHNOLOGY CO LTD
A prefabricated frame structure for slope protection
ActiveCN119061917Bincrease axial lengthImprove pouring efficiencyClimate change adaptationCoastlines protectionMolding machineWater flow
The present invention discloses a prefabricated frame structure for slope protection, which relates to the technical field of slope protection, and aims to solve the technical problem that the existing prefabricated frame structure as a whole is a fixed template that is not easy to adjust, including an outer surrounding support mechanism. The present invention uses an outer surrounding support mechanism and an auxiliary filling and forming mechanism composed of two groups of scissor-type folding structures to adjust each other. In this way, different casting and forming operations can be performed on the sections with rapid water flow and the sections with slow water flow in the water conservancy project, respectively, to adapt to the scouring and erosion adaptation effects caused by different water flow sections on the slopes. In the sections with rapid water flow, a slope with a large cross section is used to adapt to the scouring and erosion of the water flow. At the same time, the mass of the section relative to the unit area can effectively bear the scouring force of the water flow. In the sections with slow water flow, a slope with a small cross section is used to adapt to the scouring and erosion of the water flow. At the same time, the axial length in a single casting process is effectively increased to improve the casting efficiency.
Owner:HUADIAN JINSHAJIANG UPSTREAM HYDROPOWER DEV CO LTD +2
A hard carbon negative electrode material, a hard carbon negative electrode sheet and a sodium-ion secondary battery
The application belongs to the technical field of batteries, and particularly relates to a hard carbon negative electrode material, a hard carbon negative electrode sheet and a sodium-ion secondary battery. The hard carbon negative electrode material comprises first hard carbon particles, second hard carbon particles and third hard carbon particles; the first hard carbon particles are multi-angled hard carbon particles, the second hard carbon particles are few-angled or non-angled hard carbon particles, and the third hard carbon particles are obtained by heating treatment of the first hard carbon particles, the second hard carbon particles, a carbon source and a hot melt salt. The application uses different types of hard carbon particles to obtain the hard carbon negative electrode material, enhances the close contact of different hard carbon negative electrode materials in the hard carbon negative electrode sheet and the particle slip during cold pressing, reduces the rebound after cold pressing of the composite hard carbon negative electrode sheet, improves the compaction density of the composite hard carbon negative electrode sheet, and thus improves the volume energy density of the battery.
Owner:JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
Normal pressure high viscous material reactor
PendingCN122076367AImprove insulation effectlow priceChemical/physical/physico-chemical stationary reactorsLoop controlElectric machine
This invention discloses an atmospheric pressure reactor for high-viscosity materials, comprising a support assembly, a lifting device, a servo motor, a bath, a sealing and fixing assembly, a stirring assembly, and an electrical controller. The support assembly has a square sliding tube as its column, and the support rod is machined with a suitable slide rail, forming a support structure where the sliding tube is fixed and the slide rail drives the motor to lift and lower. The sealing and fixing assembly consists of a cover plate, a spring pad, and a bracket, enabling the sealing and fixing of the beaker and the directional recovery of volatile gases from the reaction. The stirring assembly has threaded stirring blades, and the servo motor achieves closed-loop control of the stirring speed via an encoder. This invention solves the problems of easy beaker rotation, uneven stirring, and uncontrolled speed in high-viscosity material reactions, improving experimental accuracy and operational safety. It is compatible with various reactor vessels and suitable for atmospheric pressure synthesis reactions of high-viscosity materials.
Owner:EASTERN LIAONING UNIV