10results about How to "Cover tightly" patented technology

This invention belongs to the field of hard carbon technology, specifically relating to a bamboo-based and lignin-based hard carbon composite material, its preparation method, and its applications. The process involves pretreating raw materials to obtain pretreated material; pretreating the pretreated material with an acidic oxidant to obtain acidic oxidant pretreated material; pre-oxidizing the acidic oxidant pretreated material to obtain pre-oxidized material; pre-carbonizing the pre-oxidized material under a protective atmosphere to obtain pre-carbonized material; pulverizing the pre-carbonized material to obtain pulverized material; acid washing followed by water washing to obtain purified material; soaking the purified material in acid, filtering, and drying to obtain soaked material; mixing the soaked material with a modifier, and high-temperature coating and carbonizing under a protective atmosphere to obtain bamboo-based coated hard carbon or lignin-based coated hard carbon. Mixing the two types of hard carbon and carbon coating yields a bamboo-based and lignin-based hard carbon composite material, which is used in negative electrode sheets and batteries. When applied to batteries, the hard carbon composite material of this invention can improve battery energy density.

The application discloses a kind of composite heat-conducting fillers, the composite heat-conducting filler is graphene oxide wraps aluminium oxide composite heat-conducting filler, wherein aluminium oxide is in situ grown on the surface of graphene oxide, then through special drying technique to form the microsphere structure of graphene oxide wrapping on the surface of aluminium oxide.The application also discloses a kind of graphene in-situ modified heat-conducting gel, containing the composite heat-conducting filler described above.The application also discloses its preparation and application.In the product prepared in the embodiment of the application, graphene is wrapped on the surface of aluminium oxide, and the two are mutually overlapped, mutually synergistic, form the special compounding effect of two-dimensional and zero-dimensional spherical, construct three-dimensional, extensive heat-conducting network structure, realize high thermal conductivity and high extrusion rate under lower filling amount.

This invention relates to the field of sodium-ion battery technology, and discloses a sodium-ion cathode material, its preparation method and application, a sodium-ion battery, a sodium-ion battery pack, and a device. The sodium-ion cathode material includes a matrix and a coating layer covering the matrix; the matrix has the composition shown in Formula I: Na 1‑x [Ni y Mn z M u Ti v O2 Formula I; the coating layer has the composition shown in Formula II: Na 2‑β Ti 6‑α M′ α O 13 Formula II. This sodium-ion cathode material possesses characteristics such as high ionic and electronic conductivity, strong structural stability, and strong chemical stability. Furthermore, using this composite cathode material in sodium-ion batteries can effectively improve the battery's electrochemical performance.

This invention relates to the field of battery technology, and more particularly to a positive electrode lithium replenisher, its preparation method, a positive electrode sheet, and a lithium battery. The aforementioned positive electrode lithium replenisher includes a core and a shell, with the shell covering the surface of the core to isolate the core from the side reaction environment. The core is a lithium-rich material, specifically at least one of Li5FeO4, Li5ReO6, and Li6CoO4. The shell is cobalt boride. This core-shell structured positive electrode lithium replenisher with cobalt boride as the shell effectively coats the core material, improves the air stability of the positive electrode lithium replenisher, reduces residual alkali, and thus enhances the battery's energy density and cycle performance.

This invention belongs to the field of laser cutting technology for automotive lamp covers, specifically a laser cutting and trimming device for the outer periphery of an automotive lamp cover, including a laser trimming machine base; a first guide rail frame is fixedly connected to the laser trimming machine base; an electric slide is slidably connected to the first guide rail frame; the lamp cover is fixed by four limiting pressure plates pressing down synchronously. When the laser cutting head cuts the flash and sprue material along the outer periphery, if it is about to reach a certain locking point, the corresponding connecting component will first release the locking of the pressure plate at that point, and then the second electric slider will drive the central slide plate and pressure plate away, while the other pressure plates remain locked. After cutting the position, the locking is reset, and all locking positions are completed in sequence. This multi-point pressing and single-point clearance fixing method replaces the situation where the traditional locking structure blocks the cutting path, improving the cutting integrity and processing quality. At the same time, the connecting component can slide on the central slide plate, so that the limiting pressure plates can adapt to different lamp cover shapes, replacing the traditional single-specification locking structure.

The utility model discloses a cable rope wrapping tape device, and relates to the technical field of cable rope wrapping, the cable rope wrapping tape device specifically comprises a wrapping installation main body, a wrapping assembly and an auxiliary mechanism, the wrapping installation main body is installed on a conveying travelling crane and can move along the axial direction of a cable rope along with the conveying travelling crane; the wrapping assembly is installed on the wrapping installation body and located at the advancing end of the wrapping installation body, the wrapping assembly rotates around the cable in the circumferential direction at a constant speed so that the cable can be wrapped with the wrapping belt, the auxiliary mechanism is installed on the wrapping installation body and located at the end opposite to the wrapping assembly, and the wrapping belt wrapping the cable is pressed through the auxiliary mechanism. According to the wrapping device, it can be ensured that a wrapped wrapping tape is tight, not loose, uniform and stable, and meanwhile the diameter of a wrapping cable can be correspondingly adjusted according to different needs so that the adaptability and practicability of the wrapping device can be improved.

This utility model discloses a heat dissipation fixture and heat dissipation connector for a steering gear durability test, relating to the field of steering gear technology. It includes a first heat-conducting plate and a second heat-conducting plate detachably connected to the first heat-conducting plate. The first heat-conducting plate has a first arc-shaped groove, and the second heat-conducting plate has a second arc-shaped groove. When the first and second heat-conducting plates are connected together, the first and second arc-shaped grooves together form a through hole for covering the motor housing. The second heat-conducting plate has a connecting hole for connecting a water-cooled heat dissipation component. In use, the first and second arc-shaped grooves are respectively engaged on the outer peripheral wall of the motor housing. The water-cooled heat dissipation component is connected to the second heat-conducting plate, and heat is dissipated from the motor through the second and first heat-conducting plates, achieving tight coverage and heat conduction, significantly improving heat dissipation efficiency.

This utility model relates to the field of busbar technology, and particularly to a high-temperature resistant insulating busbar. A high-temperature resistant insulating busbar includes a busbar conductor, the outer surface of which is coated with ceramic silicone, the outer surface of which is coated with fiberglass cloth or a polyimide film, and the outer surface of which is coated with a polyamide insulating layer. This utility model utilizes the complementary properties of polyamide and ceramic silicone to solve the problem of decreased mechanical properties and loss of insulation performance of traditional materials at high temperatures. Through the development of special pretreatment and composite processes, the interfacial bonding force between polyamide and ceramic silicone is enhanced, preventing delamination and peeling under high-temperature thermal stress. This achieves a uniform and dense coating of the insulating layer on the busbar surface, eliminating defects such as bubbles and impurities, and ensuring that the busbar still possesses reliable insulation performance and mechanical strength under high-temperature environments.

The utility model discloses a labeling machine with an adhesive tape winding seal. The labeling machine comprises an explosion-proof cabinet, an inlet conveyor, a first pushing cylinder group, a positioning rotating mechanism, an adhesive tape winding mechanism, a labeling conveyor, a labeling device, a second pushing cylinder group and a discharging conveyor. The first pushing air cylinder set is located at the left end of the inlet conveyor. The positioning rotating mechanism is located below the first pushing air cylinder set. The right end of the labeling conveyor is connected with the positioning rotating mechanism; an adhesive tape winding mechanism is further mounted below the positioning rotating mechanism; the labeling device is mounted below the middle of the labeling conveying device; and the upper part of the second pushing air cylinder group is connected with the right end of the discharging conveyer. According to the automatic labeling machine, the cans are sealed by winding adhesive tapes, automatic labeling is realized, and the labor cost is effectively reduced. And the first side roller and the second side roller are arranged for pressing, covering is tight, and the attractiveness of the winding adhesive tape is improved. And through the positioning rotating mechanism, the can is ensured to rotate without circumferential runout, and the tape winding precision is improved.

This utility model discloses an installation structure for water supply pipes on roads and bridges, belonging to the field of pipeline installation technology. It aims to solve the problems of low reliability and short lifespan caused by vibration, leakage, and corrosion in existing structures. It includes a triangular support plate, a pipe, and protective components positioned between them. The protective components include a rubber tube sleeved on the outer wall of the pipe, an arc-shaped steel plate supporting the pipe, and an arched pipe clamp spanning the top. The arched pipe clamp is connected to the triangular support plate through a fixing component to clamp and fix the pipe. This utility model achieves the beneficial effects of vibration reduction, corrosion prevention, safety, reliability, and significantly extended service life by using a rubber tube as a buffer and anti-corrosion isolation layer, and utilizing the matching arc surfaces of the arc-shaped steel plate and the arched pipe clamp to achieve tight coverage and stable fixation of the pipe.