573 results about "Binding force" patented technology

The embodiment of the invention provides a glass-based structural member as well as a preparation method and application thereof, and the preparation method comprises the following steps: carrying out at least one pre-plating cleaning selected from alkali cleaning, acid pickling and plasma treatment on a glass substrate, so that the surface water drop angle of the glass substrate is in a range of 10-30 degrees; forming a dielectric layer comprising a silicon dioxide layer on the surface of one side of the glass substrate cleaned before plating; forming an anti-fingerprint layer on the silicon dioxide layer; si-CH2 bonds are formed between the silicon dioxide layer and the anti-fingerprint layer. After the glass base material is cleaned before plating, the binding force between the SiO2 layer formed on the glass base material and the glass base material and the binding force between the anti-fingerprint layer and the SiO2 layer are both high, so that the thickness of the SiO2 layer and the anti-fingerprint layer can be large, the structure of the whole coating is stable, and the glass-based structural part can have good abrasion resistance, good scratch resistance and a lasting anti-fingerprint effect; and the application requirements in the fields of electronic equipment and the like can be well met.

An apparatus of tilting a seat cushion of a vehicle, includes a tilting motor, a pinion gear, a sector gear, and a tilting link which perform the tilting operation of the seat cushion and exert a binding force in a tilted state of the seat cushion and are provided to be connected to both of one side and the other side of a seat cushion frame, and has two sector gears positioned on left and right sides and connected to each other by a connection bar so that, by strengthening a binding force of the front portion of the seat cushion, it is possible to secure the safety of passengers in the event of a collision.

The invention relates to the technical field of metal material surface treatment, in particular to an antifouling and anti-drag coating for titanium alloy pipeline binding force and a preparation method and application of the antifouling and anti-drag coating. The preparation method comprises the following steps: carrying out micro-arc oxidation treatment on a titanium alloy to form a ceramic film on the surface of the titanium alloy; the titanium alloy subjected to micro-arc oxidation treatment is subjected to a hydrothermal reaction, and a nanoscale porous thorn microstructure and hydroxyl are introduced to the surface of a ceramic membrane; coating the pre-polymerization liquid on the titanium alloy subjected to hydrothermal treatment, and performing irradiation reaction under ultraviolet light to obtain first network gel; the first network gel is soaked in a beta-sodium glycerophosphate solution, and the ion-covalent double network p (SBMA-co-AAc) / CS-beta-GP DN hydrogel is formed. The stability and durability of the coating prepared by the preparation method provided by the invention are improved, and the coating has long-term stable anti-fouling performance, is strongly combined with a titanium alloy substrate, and has excellent anti-fouling effect and anti-drag effect when being applied to the titanium alloy substrate.

The invention provides an antifriction wear-resistant Zr / ZrN / ZrCuN composite coating as well as a preparation method and application thereof, and relates to the technical field of surface coating materials. The invention provides an antifriction wear-resistant Zr / ZrN / ZrCuN composite coating which comprises a Zr bonding layer, a ZrN supporting layer, a ZrN transition layer and a ZrCuN composite layer which are sequentially stacked, and the ZrCuN composite layer comprises a ZrN ceramic phase and doped Cu. The Zr / ZrN / ZrCuN composite coating provided by the invention has the advantages of high plastic deformation resistance, low friction coefficient, high wear resistance, good film-substrate binding force and excellent comprehensive performance, can prolong the service life and improve the functions of medical metal materials such as titanium alloy and the like, and is completely suitable for the surface protection requirements of medical apparatuses and instruments, tools and molds and mechanical parts.

The invention relates to a method for improving the binding force of a neodymium-iron-boron magnet coating and application. The method comprises the steps that rare earth hydroxide suspension liquid is prepared; spraying double surfaces of the neodymium-iron-boron magnet; and carrying out grain boundary thermal diffusion treatment. According to the method, the rare earth hydroxide is pyrolyzed into the rare earth oxide to be deposited on the surface of the sintered neodymium-iron-boron magnet, the diffusion depth of heavy rare earth elements in the magnet can be effectively increased, and the components and thickness of the coating are accurately controlled; the cost of preparing the rare earth oxide from the rare earth hydroxide is saved, the preparation process of the diffusion source is simplified, and the spraying efficiency is high; the obtained coating is high in quality and low in porosity, and the bonding strength of a diffusion source and a magnet interface is high; subsequent grain boundary diffusion can be promoted, and a new thought is provided for industrial application of the grain boundary diffusion technology.

The invention relates to a method for improving the binding force of a friction stir additive manufacturing structure layer. The method comprises the steps that oxide skin on the surfaces of a raw material bar and an additive substrate is removed; the additive substrate with the oxide skin removed is fixed; feeding the raw material bar towards the additive substrate; the raw material bar with the oxide skin removed makes contact with the additive base plate in the rotating advancing process and rubs against the additive base plate, and the end of the raw material bar is heated to be softened and evenly smeared on the surface of the additive base plate with the oxide skin removed; and after the raw material bar advances to the designated position, the raw material bar is controlled to be lifted by the height of one layer, the raw material bar is fed, and next-layer additive machining continues to be conducted on the additive base plate. According to the method, the problem of additive flowing caused by interlayer oxide inclusion of materials in the additive manufacturing process is solved, in addition, the metallurgical bonding effect between layers of the stirring friction additive manufacturing component is improved by removing oxide skin on the additive raw materials and the base plate, the longitudinal strength of the component is improved, and the service life of the component is prolonged. And the problem of longitudinal brittle fracture of the component caused by oxide inclusion is solved.

The invention provides a buried resistor circuit board and a preparation method thereof. According to the resistance element, one resistance material is arranged on the dielectric layer to form the first resistance layer, and then the other resistance material is arranged on the first resistance layer to form the second resistance layer, so that the binding force of the resistance layers and the dielectric layer can be enhanced, and the surface flatness of the resistance element can be improved. The resistive layer of the resistive element is protected by using the protective film, so that the shape and the length of the resistive layer are prevented from being influenced by subsequent processes. According to the preparation method, the whole process is a dry process, a differential etching process is omitted, an alkaline etching solution does not need to be used, and the preparation method is environmentally friendly.

The invention provides an artificial valve. The artificial valve comprises a valve frame, at least two valve leaflets and a suture ring assembly. The valve frame comprises valve feet, a flange structure and a combination layer, and at least two valve feet are installed on the inner side face of the flange structure; all the petal feet are connected in sequence to form an annular structure; a plurality of suture holes are formed in the top surface of the flange structure; the outer surface of the valve frame is coated with the bonding layer; all the valve leaflets are arranged in the annular structure and are connected with the bonding layer; a fiber layer is arranged on the outer surface of the valve leaflet; the valve leaflet is made of a polyurethane material; the suture ring assembly wraps the outer side face of the flange structure. The valve leaflet of the artificial valve can have better fatigue resistance, anticoagulation and the like, and the risk of calcification of the valve leaflet after implantation can be reduced. The binding layer can enhance the binding force between the valve frame and the valve leaflet; a fiber layer is formed on the surface of the valve leaflet and can enhance the mechanical performance of the valve leaflet.

The invention provides a method for improving seed crystal bonding quality. A dopamine polymer layer is formed on the surface of the graphite bottom support by utilizing a dopamine modified graphite bottom support and utilizing a surface grafting technology, so that the surface activity and flatness of the graphite bottom support are improved, the binding force between the bottom support and an adhesive layer is increased, in addition, low-temperature curing and crosslinking are utilized, the curing and crosslinking reaction time is prolonged, the reaction intensity is reduced, and the service life of the adhesive layer is prolonged. The defects of bubbles, holes and the like in the adhesive layer are reduced. Meanwhile, the heat-conducting disc with gradient heat conductivity coefficient is adopted, the adhesive layer in the central area is firstly cured and crosslinked, the adhesive layer at the edge part is not cured at the moment, bubbles can be orderly discharged from the center to the edge, the phenomenon that the bubbles in the central area cannot be discharged and are gathered is avoided, and finally, the bonding quality of the seed crystal and the graphite bottom support is ensured.

The invention discloses an anti-icing / deicing coating based on micro / nano double-size SiO2 as well as a preparation method and application of the anti-icing / deicing coating. The anti-icing / deicing coating comprises the following components in parts by weight: 2-6 parts of double-size SiO2, 2-6 parts of MXene, 1-2 parts of a PDMS main agent and a corresponding cross-linking agent, and 2-4 parts of an ER main agent and a corresponding curing agent, wherein the micron-sized SiO2 accounts for 1 to 3 parts, and the nano-sized SiO2 accounts for 1 to 3 parts. The preparation method comprises the following steps: doping double-size SiO2 into a PDMS / ER substrate to form a synergistic effect of micron particle skeleton support and nano particle surface modification, and preparing a coating with a lotus-leaf-shaped micron / nano bionic structure; according to the method, the combination mode between the coating and the base material is optimized, the sanding pretreatment process is adopted, and the three-dimensional anchoring structure is constructed on the surface of the aluminum base material, so that the dependence of a traditional coating on chemical bond combination is broken through, the binding force of the super-hydrophobic coating and the base material is remarkably improved, and it is ensured that the coating has good stability and durability in the severe environment.

The invention discloses a binding phase for tungsten-copper electronic paste and a preparation method thereof, and relates to the technical field of electronic paste preparation. The tungsten-copper electronic paste consists of 60-75wt% of aluminum oxide, 3-10wt% of magnesium oxide, 5-9wt% of calcium oxide, 8-15wt% of silicon dioxide and 3-10wt% of manganese oxide, and the binding force between the tungsten-copper electronic paste and an aluminum oxide substrate can be effectively improved. Aluminum oxide powder selected by the binding phase is subjected to long-time ball milling, so that the powder is fully ground and crushed, a large number of dislocations are filled in the powder, the superfine powder with the high specific surface area is fully mixed with other binding phase components, electronic paste with excellent performance can be obtained, the tungsten-copper electronic paste is printed on an aluminum oxide green tape through a screen printing machine, and the tungsten-copper electronic paste is obtained. After sintering at 1350 DEG C, the excellent bonding strength of the film layer and the aluminum oxide substrate can be maintained, and when an adhesive force test is carried out by adopting GB / T 9286-1998, the test result can stably maintain the ASTM grade to be 5B.

The invention discloses a wear-resistant coating and application thereof on a leather surface, and belongs to the technical field of leather finishing. The coating comprises a functionalized polyurethane-acrylate composite emulsion, a photoinitiator, an auxiliary agent and deionized water. Wherein the composite emulsion is prepared from hyperbranched polyester polyol, a dynamic bond chain extender and the like through prepolymerization, fluorine-containing grafting and in-situ sol-gel reaction, a hyperbranched skeleton provides mechanical support, double dynamic bonds endow a self-repairing function, in-situ nano-compounding enhances wear resistance, a diurea hydrogen bond enhances binding force, and a fluorine-containing side chain endows a coating with hydrophobic and stain-resistant performance; and preparing the coating by matching with a gradient curing process. The coating prepared by the invention has high wear resistance, efficient self-repairing property, firm adhesive force, excellent stain resistance and leather adaptation flexibility, and meets the actual requirements of middle and high-end leather finishing.

The utility model provides an easy-to-tear cover film and a package, and belongs to the technical field of food packaging. The easy-to-tear cover film comprises a heat sealing layer and a barrier layer connected to the surface of the heat sealing layer, the heat sealing layer comprises a connecting part and a separating part which is positioned on the inner side of the connecting part and can be selectively separated from the connecting part; when the easy-to-tear cover film is torn, at least partial area of the separating part is separated from the connecting part to form an opening; and the blocking layer is provided with a tearing guide line corresponding to the starting end of the opening. According to the easy-to-tear cover film, the heat sealing layer comprises the connecting part and the separating part which can be selectively separated, and the tearing guide line is arranged at the position, corresponding to the starting end of the opening, of the blocking layer, so that when the easy-to-tear cover film is torn, the separating part can be effectively separated from at least part of the connecting part under the action of the binding force of the blocking layer; the connecting part is always connected with the packaging opening. The easy-to-tear cover film can be effectively uncovered with small force in the process, and eating is convenient. The package with the easy-to-tear cover film can be conveniently used by consumers.

The utility model provides a film thermal printing head, and relates to the technical field of printing equipment. Comprising a ceramic substrate, a heat storage layer, a resistance layer, a conductive layer, a protective layer and a connecting layer, the connecting layer is arranged between the resistance layer and the conducting layer so as to improve the binding force of the resistance layer and the conducting layer; the conductive layer comprises a copper metal layer and a nickel metal layer, and the conductive layer and the connecting layer jointly form a conductor layer used for connecting an I C assembly; and the IC assembly is welded on the conductor layer, and the IC assembly is provided with a silver finger on the heat storage layer, wherein the silver finger is used for being directly welded with an external FFC / FPC (Flexible Printed Circuit / Flexible Printed Circuit) in use, so that a film thermal printing head structure without the FFC / FPC is formed. According to the scheme, a circuit board on the ceramic substrate is omitted, the external circuit board is directly welded through the silver finger, the structure of the thin film thermal printing head can be optimized, and the size of the thin film thermal printing head is further reduced.

The invention discloses a two-dimensional material photoelectric detector based on a ferroelectric pyroelectric effect. The two-dimensional material photoelectric detector comprises a ferroelectric functional layer; the double-layer electrode is positioned above the ferroelectric functional layer; the two-dimensional material thin film is arranged above the double-layer electrode and is in contact with the ferroelectric functional layer; the spontaneous polarization direction of the ferroelectric is perpendicular to the thickness direction of the two-dimensional material film; the double-layer electrode comprises an upper metal layer and a lower metal layer, and the lower metal layer is in contact with the ferroelectric functional layer and is used for enhancing the binding force between the upper metal layer and the ferroelectric functional layer; the upper metal layer has a conductive function; the two-dimensional material film is a photosensitive area of the detector and is used for receiving irradiation of a light source.

The invention relates to the technical field of secondary batteries, in particular to a negative current collector, a preparation method thereof, a negative plate and a battery. The preparation method of the negative electrode current collector comprises the following steps: preparing a metal transition layer on the surface of a polymer base film; preparing a seed copper layer on the surface of the metal transition layer, and performing plasma bombardment treatment on the seed copper layer; and forming a copper layer on the surface of the seed copper layer to prepare the negative electrode current collector. According to the preparation method provided by the invention, the compactness of the metal transition layer and the seed copper layer can be effectively improved, so that the binding force of the copper layer and the polymer base film is improved.

The invention provides a porous composite current collector and a preparation method thereof, the porous composite current collector comprises a base film layer and a conductive layer arranged on the surface of the base film layer, the conductive layer comprises a conductive material, the base film layer comprises a high-molecular polymer, the base film layer is provided with a plurality of through holes, and the through holes are communicated with the conductive material. And a blocking part for preventing magnetron sputtering pollution is arranged in the through hole. By effectively optimizing the composition and the preparation process of the porous composite current collector, the sheet resistance of the porous composite current collector is reduced, and the situation that a conductive material is hit onto a sputtering back roller through vertical holes to cause back roller pollution is avoided, so that the porous composite current collector has high conductivity and high compression strength, and the binding force of a conductive layer and a base film layer is improved.

The invention relates to the technical field of guiding devices, in particular to a nasal jejunum nutrition tube imbedding guiding device which is used for guiding the process of imbedding a flexible nasal jejunum tube into a human body. The image acquisition device acquires a picture in the direction of the advancing direction of the insertion end of the nasal jejunum tube; the bag body is arranged in a manner of extending close to the insertion end of the nasal jejunum tube; during use, the bag body does not generate binding force on the nasal jejunum tube in a low-expansion state, the shape of the nasal jejunum tube is not limited by the bag body, when the bag body is in a high-expansion state, the bag body generates binding force on the nasal jejunum tube to enable the nasal jejunum tube to be bent, and the image acquisition device comprises a camera arranged in the insertion end of the nasal jejunum tube. The insertion end of the nasointestinal tube is provided with a closing part for preventing the camera from falling off, and the problem that the throat and the pylorus cannot pass through the nasointestinal tube quickly and smoothly in the existing nasointestinal tube indwelling process can be solved by improving the existing endoscope guiding technology.

The invention discloses a mica-based fireproof material for a new energy automobile battery, and belongs to the technical field of fireproof materials, the mica-based fireproof material comprises a mica layer and a waterproof coating, the mica layer is formed by mixing mica and an adhesive according to a weight ratio of 100: 15-25; the mica layer endows the battery with excellent fireproof performance, flame burning caused by thermal runaway of the battery is prevented, potential safety hazards after thermal runaway of the battery are effectively slowed down, the waterproof coating is arranged, the battery is endowed with good waterproof and corrosion-resistant performance, modified graphene is firstly prepared in the preparation process of the waterproof coating, and then the modified graphene is prepared in the preparation process of the waterproof coating. A dihydroxyl structure on modified graphene can be used as a chain extender to access graphene into a polyurethane structure, graphene is accessed into a matrix through a chemical reaction, the binding force of fluorine elements on the surface of graphene and the matrix can be improved, the hydrophobic durability of a polyurethane coating is improved while the polyurethane matrix is endowed with hydrophobic performance, and the service life of the polyurethane coating is prolonged. And moreover, due to the functional characteristics of polyurethane, the coating can be endowed with excellent corrosion resistance.

The invention particularly relates to a high-conductivity high-binding-force PP composite copper film and a preparation method thereof.According to the high-conductivity high-binding-force PP composite copper film and the preparation method thereof, a direct-current magnetron sputtering technology is adopted, a metallized Cu film is deposited on a PP base material, the binding force and the conductivity of the Cu film are greatly improved by finely regulating and controlling the deposition technology, the resistivity of the Cu film is as low as 9.72 * 10 <-8 > omega.m, and the conductivity of the Cu film is greatly improved. The binding force grade is grade 1 (the substrate temperature is-15 DEG C; the deposition air pressure is 0.24 Pa; the sputtering power is 1.5 kW; and the thickness of the Cu film is about 80 nm). The method is simple in preparation process, high in deposition efficiency and convenient for industrial popularization and application.

The invention relates to a thermal insulation composite material and a preparation method thereof. The preparation method comprises the following steps: (1) preparing thermoplastic polyurethane; (2) carrying out graft modification on the thermoplastic polyurethane; (3) pretreating the hollow glass microspheres; (4) preparing dispersion liquid; and (5) coating the dispersion liquid. Compared with the prior art, more active groups are introduced through synthesis and graft modification of the thermoplastic polyurethane, the binding force between the thermoplastic polyurethane and the hollow glass microspheres is enhanced, and the overall performance of the composite material is improved. The hollow glass microspheres are pretreated, so that the surface performance of the hollow glass microspheres is improved, and the compatibility and the bonding strength of the hollow glass microspheres and the modified thermoplastic polyurethane are further improved.

The invention discloses a measurement method and a preparation method of a packaging substrate and ink binding force thereof, and the measurement method comprises the steps: providing a packaging substrate to be tested, the packaging substrate comprises a metal layer, an ink layer and a prepreg layer, and the surface of the metal layer is provided with a metal pattern used for measuring the peel strength; performing a stripping test on the packaging substrate to obtain stripping force of stripping the metal pattern from the ink layer and line width of the metal pattern; and determining the ink binding force of the packaging substrate according to the stripping force of the ink and the line width of the metal pattern. According to the invention, the peeling strength can be calculated, so that the accuracy of measuring the binding force of the ink is improved.

The invention discloses a preparation method of a molten salt corrosion resistant coating on the surface of a TiAl alloy, relates to the technical field of surface treatment, and aims to solve the technical problems of low binding force between an existing TiAl alloy matrix and a coating interface and poor corrosion resistance of the coating. The preparation method of the molten salt corrosion resistant coating on the surface of the TiAl alloy comprises the steps that a Zr-Y alloy is infiltrated on the surface of the TiAl alloy through a double glow plasma method, and a Zr-Y infiltrated layer is formed on the surface of the TiAl alloy; the TiAl alloy is subjected to heat preservation for 1-5 hours under the condition that the temperature ranges from 850 DEG C to 900 DEG C; a Zr-Cr-Y alloy is infiltrated on the surface of the TiAl alloy, and a Zr-Y / Zr-Cr-Y infiltrated layer is formed on the surface of the TiAl alloy; the TiAl alloy is subjected to heat preservation for 2-3 hours under the condition that the temperature ranges from 900 DEG C to 950 DEG C, and is oxidized under the condition that the temperature ranges from 860 DEG C to 920 DEG C;

The invention discloses a high-color-fastness washable polyethylene fabric and a preparation process thereof in the field of functional polymer materials. The high-color-fastness washable polyethylene fabric is prepared from the following raw materials: polyethylene resin, maleic anhydride-acrylic acid copolymer grafted polyethylene, dopamine-silane composite modified polyethylene, magnesium stearate and an antioxidant. Wherein the maleic anhydride-acrylic acid copolymer grafted polyethylene is prepared by copolymerizing maleic anhydride and acrylic acid and then blending and granulating with polyethylene, and carboxyl and acrylate groups are introduced to enhance the binding force with dye; the dopamine-silane composite modified polyethylene is prepared through polyethylene surface hydroxylation, dopamine self-polymerization modification and silane grafting reaction, and the acting force and hydrophobicity between fibers are doubly improved through a catechol group and an epoxy group. According to the prepared fabric, the color fastness and the washing resistance are remarkably improved, meanwhile, the original characteristics of light weight and chemical corrosion resistance of polyethylene are kept, and the application scene is expanded.

The utility model belongs to the technical field of tensile test piece devices for quantitatively detecting coating binding force, and discloses a tensile test piece device for quantitatively detecting coating binding force, which comprises a support seat I and a support seat II, a pneumatic chuck I is mounted in the middle of the upper end surface of the support seat I, and a pair of support rods is mounted on two sides of the upper end surface of the support seat I; first sliding grooves are formed in the opposite sides of the supporting rods, telescopic sleeves are slidably connected into the first sliding grooves, telescopic grooves are formed in one sides of the telescopic sleeves, telescopic rods are movably connected into the telescopic grooves, protective covers are installed at one ends of the telescopic rods, second sliding grooves are formed in one sides of the first sliding grooves, and locking screws are installed on one sides of the second sliding grooves. According to the device, the welding position of a test piece can be wrapped through a pair of protective covers, the situation that in the stretching process, the welding position is suddenly broken, chippings splash and injure testers accidentally is avoided, meanwhile, the chippings can be conveniently and rapidly cleaned, and the practicability of the product is improved.

The invention provides an acoustic compatibilization material, a preparation method thereof, a loudspeaker module and electronic equipment. The acoustic compatibilization material comprises a living carrier and a COF material, wherein the living carrier is provided with mesopores and macropores; the COF material is loaded and / or embedded in the pore structure of the living carrier; the COF material is provided with three-dimensional pore channels with the pore diameter not smaller than 0.4 nm, and the pore channels are communicated with one another. The COF material has good binding force with the living carrier, so that the mechanical property of the living material can be improved, and the water absorption rate of the living carrier can be greatly reduced. The invention also provides a preparation method of the acoustic compatibilization material, and the preparation method comprises the following steps: immersing a living carrier in a solution of a COF material precursor, and crystallizing to obtain the acoustic compatibilization material, the method does not comprise a roasting step. The acoustic compatibilization material provided by the invention has a hierarchical pore structure, has a relatively good acoustic compatibilization effect, and can effectively improve the low-frequency effect of a loudspeaker.

The invention discloses a high-binding-force composite current collector, a preparation method and a lithium ion battery, the high-binding-force composite current collector comprises a polymer base film layer, adhesive layers and a metal layer, the adhesive layers are respectively arranged on two sides of the polymer base film layer, and the metal layer is arranged on the two sides of the polymer base film layer. The metal layers are respectively arranged on one side, far away from the macromolecular base film layer, of the adhesive layer; wherein the adhesive layer is prepared by preparing a coating on the surface of the macromolecular base film layer by using an adhesive through a spraying or coating technology and curing the coating; the metal layer comprises a first metal film and a second metal film. According to the high-binding-force composite current collector disclosed by the embodiment of the invention, the additive is bonded with the metal layer on the basis of the emulsion and the filler additive in the adhesive, so that the binding force between the macromolecular base film layer and the metal layer is improved, the phenomenon that the metal layer falls off is effectively avoided, and meanwhile, the energy density and the safety performance of the composite current collector are further improved; and the yield of products is increased.

The invention discloses a preparation method of an annular flexible magnet, which comprises the following steps: mixing, banburying and crushing raw materials to prepare an injection molding magnetic particle material, then primarily molding the injection molding magnetic particle material into an injection molding magnetic ring through an injection molding process, and then carrying out compression molding on the injection molding magnetic ring by adopting a mold pressing process to form a mold pressing magnetic ring. And finally, subsequent surface treatment, magnetizing and other procedures are carried out to complete preparation of the flexible magnetic ring, so that the flexible magnetic ring is prepared by adopting the injection and mold pressing processes in sequence, the advantages of the injection and mold pressing molding processes are achieved at the same time, and the prepared flexible magnetic ring is large in density, high in magnetic performance, uniform in performance, good in consistency and free of fracture risk; the material utilization rate is high, the production efficiency is high, the binding force in the magnet is high, and the strength is high.

The invention discloses an insulation method of high-performance self-lubricating metal soft magnetic powder, which comprises the following steps: activating metal soft magnetic powder through a complexing agent, modifying MXene through a silicon source, and then putting the activated metal soft magnetic powder and the modified MXene material into an insulation liquid together for insulation treatment to obtain the high-performance self-lubricating metal soft magnetic powder. And finally, the insulating metal soft magnetic powder with excellent magnetic performance and self-lubricating performance is obtained. The insulating metal soft magnetic powder prepared according to the method disclosed by the invention has relatively high direct current bias performance and relatively low magnetic core loss, shows excellent comprehensive magnetic performance, also has good self-lubricating performance and excellent binding force, and can be used for remarkably improving the formability and the mechanical property of the insulating powder.

The invention discloses a metallized ceramic substrate and a preparation method thereof. The metallized ceramic substrate comprises a ceramic substrate, and a Ti thin film layer, a Pu thin film layer and an Au thin film layer which are sequentially deposited on the ceramic substrate in a magnetron sputtering coating manner. The ceramic substrate is a commercial aluminum oxide ceramic substrate or a commercial aluminum nitride ceramic substrate. The surface, needing to be plated with the metal film layer, of the ceramic substrate needs to be polished, and the surface roughness of the polished surface is 100 nm. The thickness of the Ti thin film layer is 100 nm, the thickness of the Pu thin film layer is 200 nm, and the thickness of the Au thin film layer is 500 nm. The multi-layer metal film can increase the binding force between the metal film layer and the ceramic substrate, prevents the metallization layer from being separated from the ceramic substrate in the service process, improves the metallization strength, and can be widely applied to the field of various electronic components.