244 results about "Zirconia ceramic" patented technology

The invention provides a granulation raw material, a pre-sintered body, a zirconia porcelain block, a fast firing production method and application. The fast firing production method comprises the following steps: S1, providing a first zirconium oxide material and a second zirconium oxide material; s2, compounding the first zirconium oxide material and the second zirconium oxide material, and granulating together with an auxiliary material to obtain a granulation raw material; s3, obtaining a green body based on the granulation raw materials; s4, carrying out pre-sintering treatment on the green body to obtain a pre-sintered body; and S5, machining the pre-sintered body, and then carrying out fast firing treatment to obtain the zirconium oxide porcelain block. On the basis of compounding of granulation raw materials, the overall performance of the zirconia ceramic block can be improved while a pre-sintered body can be rapidly sintered.

The invention relates to the technical field of high-temperature alloy materials, and provides an N10276 profiled bar and a forming method thereof.The surface of a blank is coated with a three-layer composite sheath, the blank is heated in a partitioned and gradient mode, the temperature of a side wing plate area is 50-100 DEG C higher than that of a web plate area, the metal fluidity of a side wing plate is improved, cogging rolling, four-roller reciprocating finish rolling, partitioned and gradient cooling and secondary solution treatment are conducted, and the N10276 profiled bar is obtained. A nitric acid and hydrofluoric acid mixed solution is used for pickling and stripping the composite sheath, an oxide layer is removed, intergranular corrosion is avoided, a triple sheath synergistic protection mechanism is adopted, oxygen is physically isolated by outer stainless steel, and heat loss is inhibited by a middle yttria-stabilized zirconia ceramic fiber layer.

The invention relates to a zirconia ceramic pump body deep hole nanoscale honing process and honing head, and the zirconia ceramic pump body deep hole nanoscale honing process comprises the steps that a composite honing head with a coarse grinding section and a fine grinding section is adopted, and a preset gradient machining process is executed on a target zirconia ceramic pump body; according to the zirconia ceramic pump body deep hole nanoscale honing process and the composite honing head, the gradient machining process is combined with the design of the composite honing head, machining parameters, cooling liquid types and temperature control strategies are dynamically adjusted at different stages, the whole process optimization from rough machining to superfinishing is achieved, and the machining efficiency is improved. The method has the effects of improving the machining efficiency, reducing surface defects and avoiding thermal stress cracks.

The invention provides a rapid sintering method of zirconia ceramic for dentistry and zirconia ceramic, the rapid sintering method of zirconia ceramic for dentistry comprises the following steps: obtaining a pre-sintered body prepared from zirconia powder with stable yttrium oxide, and obtaining a standard active sintering temperature of the zirconia powder; the pre-sintered body is subjected to final sintering in a preset final sintering stage, the zirconia ceramic is obtained, the preset highest sintering temperature in the preset final sintering stage is higher than the standard active sintering temperature, and the difference value between the preset highest sintering temperature and the standard active sintering temperature ranges from 10 DEG C to 60 DEG C. According to the embodiment of the invention, the preset highest sintering temperature in the preset final sintering stage is set to exceed the standard active sintering temperature by 10-60 DEG C, so that the highest sintering temperature of the final sintering process is improved, the final sintering time of the zirconia ceramic is shortened, the production efficiency of the zirconia ceramic product is improved, and the production cost is reduced. And meanwhile, the material can obtain excellent mechanical properties and transparency within an extremely short time.

The invention relates to the field of materials, and particularly discloses a mildew-proof and antistatic automobile trunk inner lining plate material and a preparation method thereof.The mildew-proof and antistatic automobile trunk inner lining plate material is prepared by adopting flax fibers, zirconia ceramic fibers and carbon fibers to be compounded to serve as a reinforcing framework, conducting vacuum drying and activation on the reinforcing framework, pretreating graphene oxide and dispersing the graphene oxide in a fiber network; according to the present invention, the mold inhibitor and the antibacterial agent are added to form the uniform and lasting release source of the mold inhibitor and the antibacterial agent, and the composite binder and the composite auxiliary agent are adopted, and the graded pressurization cold pressing molding process is adopted so as to compact the fiber network, effectively release the internal stress, and avoid the structural damage caused by the single high pressure so as to obtain the low-porosity and high-strength compact structure; the inner supporting plate material has efficient and broad-spectrum antibacterial performance and rapid and lasting static dissipation capacity, achieves the best balance among mechanical strength, durability, mildew-proof and antistatic performance and environmental protection performance, meets the application requirements of inner lining plates of automobile trunks, and has high practical application value.

The invention belongs to the technical field of ceramic materials, and discloses a zirconia ceramic containing nanofiber alumina and stabilized by yttrium oxide, the zirconia ceramic contains 3 mol% of Y2O3, the concentration of nanofiber Al2O3 in the composite ceramic is 0.95 vol%-1.9 vol%, and the sintering temperature is 1400-1500 DEG C. The invention also discloses a preparation method of the zirconia ceramic. The low-temperature hydrothermal aging resistance of the yttria-stabilized zirconia ceramic can be greatly improved by adding a proper range of nano-fiber alumina; the addition of a proper range of nanofiber alumina has no significant influence on the rheological properties of the yttrium oxide-stabilized zirconia ceramic, and the void ratio of the pressed zirconia ceramic is not greatly different from that of the zirconia ceramic not added with the nanofiber alumina.

The invention discloses a preparation method and application of high-toughness anti-aging zirconia ceramic, and relates to the technical field of ceramic materials.The preparation method comprises the following steps that nano monoclinic zirconia with the D50 being 20-50 nm and the mass fraction being 99.7-99.8 wt%, aluminum oxide with the D50 being 200-400 nm and the mass fraction being 0.2-0.3 wt% and a dispersing agent are taken, and the dispersing agent accounts for 1-1.5 wt% of the total mass of powder; the preparation method comprises the following steps: by taking a high-purity aluminum oxide grinding ball as a grinding medium, stirring and grinding for 2-4 hours at the rotating speed of 700-1000r / min, and then grinding for 1-2 hours at the sanding rotating speed of 1500-2000r / min to obtain mixed slurry; nano monoclinic zirconia is adopted as a raw material, aluminum oxide and a dispersing agent are added for co-grinding, Y2O3 is deposited on the surface of ATZ composite powder in a magnetron sputtering mode, and a Y2O3 deposition layer can inhibit conversion from t-zirconia to m-zirconia, so that the anti-aging performance of the zirconia ceramic is improved, and the service life of the zirconia ceramic is prolonged. And the nano monoclinic zirconium oxide is directly mixed and ground with the aluminum oxide, so that the zirconium oxide raw material is more easily subjected to stress-induced phase change, and the toughness performance of the zirconium oxide ceramic is improved.

The invention relates to a method for improving low-temperature aging resistance of zirconia ceramic by utilizing defect engineering, which comprises the following steps: S1, preparation of zirconia slurry: taking zirconia powder with 3 mol% of yttrium oxide as a stabilizer as a raw material, and weighing the zirconia powder and deionized water according to a mass ratio of (1.5-2.5): 1; citric acid or acetic acid or nitric acid is dropwise added into deionized water, and the pH is adjusted to be 2.5-4; adding zirconium oxide powder into the adjusted aqueous solution step by step, and stirring to obtain zirconium oxide slurry; s2, introduction of powder intragranular defects: pouring the zirconium oxide slurry obtained in the step S1 into a sand mill, carrying out sanding treatment for 8-12 hours by adopting zirconium oxide microbeads as a medium, and introducing blade dislocation and lattice distortion crystal defects into zirconium oxide powder crystals; s3, after the powder containing the intragranular defects obtained in the step S2 is formed, pressureless sintering is conducted at the temperature of 1350-1425 DEG C in the air atmosphere, and the compact 3Y-TZP zirconia ceramic containing the intragranular defects is obtained. The phase transformation of the zirconia ceramic from a tetragonal phase to a monoclinic phase can be effectively inhibited, and the low-temperature aging resistance of the zirconia ceramic is improved.

According to the probe card module and the manufacturing process, the manufacturing cost is low, the stability is high, the abrasion resistance is good, the service life is long, and low-loss transmission of high-frequency signals can be guaranteed. The device comprises a bottom plate, the bottom plate is provided with a first limiting rotating shaft, the first limiting rotating shaft is sleeved with a plurality of shifting blocks, ceramic chips are arranged at the ends of the shifting blocks, the ceramic chips are zirconia ceramics, and the ends of the ceramic chips are bonded with probes through UV glue. The method is applied to the technical field of semiconductor testing.

The zirconium oxide ceramic modified by the graphene / zirconium oxide calcined composite microspheres is prepared from stable zirconium oxide powder A and the graphene / zirconium oxide calcined composite microspheres accounting for 25 wt% or below of the total ceramic powder through mixing, compression molding and sintering, the preparation method of the graphene / zirconium oxide calcined composite microspheres comprises the following steps: preparing stable zirconium oxide powder B, graphene and a solvent into slurry; and carrying out ball milling, spray drying and calcination to obtain the graphene / zirconium oxide calcined composite microspheres. According to the present invention, the graphene / zirconium oxide calcination composite microsphere and the SPS sintering are performed, such that the dispersed graphene / zirconium oxide two-phase structure region exists in the obtained zirconium oxide composite ceramic so as to consume the large amount of the crack growth energy, and the significant toughening effect is provided.

The invention relates to the technical field of brazing, in particular to a low-temperature preparation method of a nickel-titanium alloy / zirconia ceramic corrosion-resistant joint. In order to solve the problems that an implantable medical device prepared through an existing NiTi shape memory alloy and zirconia ceramic connecting method is poor in biocompatibility and not suitable for long-term service in a human body, the invention provides the NiTi shape memory alloy and zirconia ceramic low-temperature indirect brazing method which is good in biocompatibility and excellent in corrosion resistance. The brazing method comprises the following steps: (1) preparing metallized brazing filler metal; (2) metalizing the zirconia ceramic; (3) brazing the NiTi alloy and the zirconia ceramic; after the obtained joint is subjected to an electrochemical test in SBF simulated body fluid, the corrosion resistance is good; the highest strength of a brazed joint is 31 MPa, and the use strength of an implantable medical device can be met.

The invention relates to the technical field of fluid conveying equipment, in particular to a corrosion-resistant composite ceramic isolation sleeve for a magnetic drive pump, a preparation method and the magnetic drive pump. By adopting the specific compound proportion of the lithium oxide ceramic and the zirconium oxide ceramic, the magnetic drive pump isolation sleeve has excellent corrosion resistance and mechanical strength, is particularly suitable for conveying nitrogen tetroxide and other strong corrosive media, and remarkably improves the service life and the reliability of the magnetic drive pump isolation sleeve. The preparation method provided by the invention ensures that the material ratio is accurate, the structure is uniform, the performance is stable, and the method is suitable for large-scale production. The specific number of pairs of magnetic poles is adopted to be matched with the optimized isolation sleeve, so that the maximization of magnetic torque and the minimization of eddy-current loss are realized, and the transmission efficiency and the operation stability of the magnetic drive pump are integrally improved.

This invention discloses a composite rare earth oxide co-stabilized zirconia ceramic microsphere and its preparation method, belonging to the technical field of zirconia ceramic microspheres. The zirconia ceramic microspheres are prepared from 80-90 parts by mass of tetragonal zirconia (ZrO2) powder, 0.5-1 parts by mass of alumina (Al2O3) powder, 5-10 parts by mass of yttrium oxide (Y2O3) powder, and 5-10 parts by mass of composite rare earth oxide powder. This invention uses tetragonal zirconia as the base material, adds yttrium oxide (Y2O3) as a stabilizer, and further adds composite rare earth oxides ytterbium oxide (Yb2O3) and nano-gadolinium oxide (Gd2O3). Yb2O3 serves as the second stabilizer, while Gd2O3 enhances the ferroelastic toughening effect of the ceramic. The combined effect of the two rare earth oxides increases the strength of the zirconia ceramic microspheres.

The present invention relates to a zirconia ceramic containing a glass phase, comprising 1.0-5.5 wt% of a YASZ glass phase and the balance a 3Y-TZP crystalline phase, wherein the YASZ glass phase is located between grains of the 3Y-TZP crystalline phase. The YASZ glass phase comprises 15-35 wt% Y2O3, 10-30 wt% Al2O3, 35-55 wt% SiO2, and 4-10 wt% ZrO2, and the dihedral angle formed between the YASZ glass phase and the 3Y-TZP crystalline phase is 62-85°. The present invention also relates to a bone implant prosthesis prepared from the zirconia ceramic containing the glass phase.

This utility model provides a cutting cover for processing zirconia ceramic blocks, comprising: a processing table, on the upper surface of which a processing support is fixedly connected, and a cutting tool holder and a positioning mechanism are mounted on the processing support; a cutting cover body, mounted on the processing table, with a door slidably mounted at the front end of the cutting cover body, an observation window mounted on the door body, and an electric push rod fixedly mounted on the inner wall of the cutting cover body, the output end of which is fixedly connected to the upper end of the door body; and a dust collection unit, mounted on the processing table and the cutting tool holder. This cutting cover for processing zirconia ceramic blocks shields the workpiece and equipment during the cutting process, and, with the cooperation of the dust collection unit, collects the dust generated during cutting, avoiding potential safety hazards during cutting and preventing dust pollution of the working environment, thus protecting the health of operators.

The graphene / zirconia sintered composite microsphere modified zirconia ceramic is prepared by mixing, pressing and sintering stable zirconia powder A and graphene / zirconia sintered composite microspheres accounting for less than 25wt% of the total ceramic powder; the preparation method of the graphene / zirconia sintered composite microspheres is that stable zirconia powder B, graphene and a solvent are matched into a slurry; the graphene / zirconia sintered composite microspheres are obtained through ball milling, spray drying and calcination. The graphene / zirconia sintered composite microspheres and SPS sintering are used in the application, the obtained zirconia composite ceramic has dispersed graphene / zirconia two-phase structure regions in the interior, can consume a large amount of energy of crack propagation, and has a significant toughening effect.

The invention provides a brazing method suitable for a medical implantable ceramic tube shell. The brazing method comprises the steps that a zirconia ceramic workpiece is cleaned; performing vacuum magnetron sputtering on the surface of the cleaned zirconia ceramic workpiece, and sequentially depositing a bottom metal layer and a surface metal layer to form a metalized layer; performing vacuum heat treatment on the zirconia ceramic workpiece with the metalized layer so as to eliminate the internal stress of the metalized layer; acid pickling is conducted on the surface of the pure titanium metal piece to remove an oxidation film, and drying treatment is conducted; placing a gold solder between the metallization layer and the pure titanium metal piece, and assembling an assembly to be welded; according to the method, a to-be-welded assembly is placed in a vacuum brazing furnace to be brazed, preset heating, heat preservation and cooling procedures are executed, and high-strength, high-airtightness and excellent-biocompatibility connection between zirconia ceramic and pure titanium is achieved through an optimized surface metallization process, stress relief treatment and a strictly-controlled full-process vacuum brazing process.

The invention relates to the technical field of special ceramic product preparation, and discloses a zirconium oxide secondary densification process in special ceramic part processing, which comprises the following steps: a vacuum pressure infiltration step: driving an aluminosilicate-based precursor to infiltrate into microcracks on the surface layer of a zirconium oxide workpiece by using pressure difference; a phase change interval critical rate heating step: controlling the heating rate to match the volume shrinkage of the zirconium oxide from monoclinic phase to tetragonal phase transformation, and generating a grain boundary gap to drive the precursor to deeply permeate; an in-situ reaction densification step: inducing the precursor in-situ reaction at high temperature to generate an aluminosilicate solid phase and filling crystal boundary trident points; according to the method, through a phase change coupling permeation mechanism, reactive healing of microcracks is achieved on the premise that abnormal growth of crystal grains is not caused, and the fracture toughness and the anti-aging performance of the zirconia ceramic are improved.

A method for enhancing mechanical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. A porous or pre-sintered stage of a ceramic body may be treated with a tantalum-containing composition prior to sintering. Alternatively, zirconia ceramic powder may be coated with a tantalum-containing composition prior to forming a shaped ceramic body. After sintering, the resulting ceramic bodies have enhanced mechanical properties, such as greater fracture toughness, without a significant decrease in optical properties.

The application provides a zirconia composite powder, a preparation method of the zirconia composite powder, a zirconia ceramic and a dental restoration. The zirconia composite powder comprises zirconia matrix particles and cubic phase zirconia particles, the zirconia matrix particles comprise monoclinic phase zirconia and tetragonal phase zirconia, and at least part of the cubic phase zirconia particles form an interface with the zirconia matrix particles in an atomic scale. After sintering of the composite powder in the above manner, the mechanical strength and toughness required by the dental restoration can be obtained, and the hardness is reduced, so that the hardness matching with the opposite tooth is improved, and the pathological abrasion risk is reduced.

The invention discloses a method for preparing porous zirconia ceramic by low-temperature sintering, which comprises the following steps: S1, mixing citric acid, zirconium acetylacetonate and absolute ethyl alcohol according to a certain proportion to obtain a colloidal solution A; s2, mixing inorganic yttrium salt, inorganic zirconium salt and water according to a certain proportion to obtain a mixed solution B; s3, slowly adding the colloidal solution A into the mixed solution B obtained in the step S2; s4, drying the colloidal solution to obtain a dried precursor; s5, carrying out low-temperature calcination on the dried precursor to obtain nano yttrium-stabilized zirconia powder; s6, performing ball milling and spray granulation on the powder to obtain spherical granulation powder with uniform particle size; s7, carrying out dry pressing molding and cold isostatic pressing molding to obtain a to-be-sintered ceramic biscuit; and S8, sintering in a muffle furnace to obtain the final porous zirconia ceramic. After the powder is subjected to ball milling, granulation, dry pressing and cold isostatic pressing, the zirconia ceramic which is uniform in pore diameter and has nano-scale pores is prepared through low-temperature sintering.

The invention relates to the technical field of electronic cigarette heating elements, in particular to a flexible ceramic-based electronic cigarette heating wire and a preparation method thereof.The flexible ceramic-based electronic cigarette heating wire comprises a zirconia ceramic fiber matrix, the zirconia ceramic fiber matrix is composed of tetragonal phase zirconia co-stabilized by 3-5 mol% of yttrium oxide and 1-2 mol% of cerium oxide, the diameter of zirconia ceramic fibers is 200-400 nm, and the grain size is 80-120 nm; the surface of the zirconia ceramic fiber matrix is covered with the metal film layer, and the metal film layer comprises a zirconium transition layer with the thickness of 2-3 nm; the iron-chromium-aluminum alloy layer comprises the following components in percentage by weight: 68 to 71 percent of iron, 22 to 24 percent of chromium, 5.5 to 6.2 percent of aluminum, 0.2 to 0.28 percent of yttrium and the balance of inevitable impurities; and the thickness of the iron-chromium-aluminum alloy layer is 300-400 nm, and the resistivity of the iron-chromium-aluminum alloy layer is 1.3-1.4 mu omega.m.

The invention discloses an aluminum oxide waterproof heat-insulating coating as well as a preparation method and application thereof, relates to the technical field of coating materials, and solves the problem that an existing protective coating material cannot meet the requirements of a high-precision chip on interface bonding strength and thermal mechanical stability of a densified coating. The coating comprises loose and porous aluminum oxide slurry A and relatively dense aluminum oxide slurry B, the aluminum oxide slurry A is printed on the surface of the chip blank through the printing process and dried, and the aluminum oxide slurry A is a first layer sintered at high temperature; printing the aluminum oxide slurry B on the surface of the chip blank with the aluminum oxide coating A, and drying, wherein the aluminum oxide slurry B is a second layer of low-temperature sintering; the method can be applied to protection of the zirconia ceramic chip in the nitrogen-oxygen sensor, and has a wide application prospect.

The invention relates to the field of wear-resistant materials and scrapers, in particular to a metal ceramic composite material, a preparation method and a wear-resistant scraper, and the metal ceramic composite material comprises the following chemical elements in parts by weight: melt-drawn steel fibers and zirconia ceramic powder; the metal ceramic composite material is formed by compounding the melt-drawn steel fibers and the zirconia ceramic powder, and has excellent toughness of the melt-drawn steel fibers and high hardness and high temperature resistance of a ceramic material; according to the preparation method, melt-drawn steel fibers and zirconia ceramic powder components can be uniformly combined, internal pores of the material are effectively reduced, and the structural compactness and stability are improved; according to the wear-resistant scraper machine, the base plate is made of the metal ceramic composite material, the comprehensive advantages of high wear resistance, high temperature resistance and impact resistance of the material are fully played, and the friction loss in the running process of the rack and the chain is effectively reduced in cooperation with the structural design of the wear-resistant assembly fixed through the bolts.

The application discloses a preparation method of an incompletely sintered zirconia ceramic plate and belongs to the technical field of ceramic materials. The preparation method of the incompletely sintered zirconia ceramic plate comprises the following steps: (1) uniformly mixing yttria-doped zirconia powder, a solvent, a dispersing agent, a plasticizer and a binder to obtain slurry; (2) ball milling and defoaming the slurry; (3) performing flow casting and isostatic pressing on the defoamed slurry to obtain a green body; (4) stacking the green body and removing glue to obtain a body; and (5) sintering the body to obtain the zirconia ceramic plate. The prepared zirconia ceramic plate is incompletely sintered, the crystal grains are relatively loose, and the holes are relatively more, so that the glue removal of an electrolyte sheet product is facilitated, the zirconia ceramic plate has good strength and hardness, is not prone to damage, is convenient for carrying and storage, can be repeatedly used and is low in cost.

A method for fabricating a negative Poisson's ratio Miura origami-structured zirconia ceramic includes the following steps: Designing a unit cell structure using 3D modeling software; horizontally arranging the unit cells to obtain a single-layer, thicknessless Miura origami structure; mirroring, thickening, and merging the single-layer, thicknessless Miura origami structure to obtain a multi-layered Miura origami structure; importing the model into slicing software for slicing and then 3D printing to form a green body; placing the cleaned green body in a muffle furnace for degreasing and sintering; and obtaining the negative Poisson's ratio Miura origami-structured zirconia ceramic after sintering. By using 3D printing to achieve the stacked Miura origami structure and then sintering it, the mechanical metamaterial of origami is combined with ceramic materials. This not only enhances the toughness of ceramic materials through special structures but also solves the problem of traditional ceramic preparation methods being unable to fabricate complex structures. It features convenience, high precision, and customizability.

A black zirconia ceramic is composed of a colorant and a base material, characterized in that the mass percentage of the colorant is 2.0-5.0%, and the mass percentage of the base material is 95.0-98.0%; the colorant is composed of CoO, NiO and Fe2O3, and the mass ratio of CoO, NiO and Fe2O3 in the colorant is CoO:NiO:Fe2O3=0.5-1:14-18:32-36; and the base material is 3mol% yttria partially stabilized zirconia. The application further provides a preparation method of the black zirconia ceramic. The black zirconia ceramic has uniform and stable color, excellent mechanical properties, and relatively low preparation cost.

This invention discloses a method for simulating and testing ceramic sintering stress and a method for reducing ceramic sintering stress. The simulation and testing method includes: 1. Measuring the grain size, relative density, and geometric dimensions before and after sintering; 2. Using Abaqus to establish the ceramic geometry and construct a transient heat conduction model; 3. Establishing the viscoelastic constitutive equation for the sintering shrinkage deformation of zirconia ceramics and constructing a sintering shrinkage model; 4. Sequentially coupling the transient heat conduction model and the sintering shrinkage model to perform joint simulation of solid-state sintering, obtaining the simulation results of ceramic sintering stress. The method for reducing ceramic sintering stress includes: 5. Establishing a finite element model of ceramic sintering shrinkage with proportionally distributed grain sizes and calculating the average sintering stress distribution of the grain size proportional distribution model; 6. Comparing the average sintering stress of sintering shrinkage models with different grain size proportions to determine the method for reducing sintering stress. This invention improves ceramic sintering quality and production efficiency.

The application discloses a kind of composite zirconia ceramic microbeads and preparation method thereof, belong to zirconia ceramic microbead technical field.The composite zirconia ceramic microbead is prepared by 75~85 mass parts yttrium stabilized tetragonal zirconia, 15~25 mass parts alumina, 0.2~1 mass parts silicon dioxide, 0.2~0.5 mass parts magnesium oxide, 2~5 mass parts modified silicon nitride.The present application uses yttrium stabilized tetragonal zirconia as base material, supplemented with alumina and modified silicon nitride, uses the high hardness of alumina, the good combination of modified silicon nitride in formula to improve the overall wear resistance, the results show that the addition of modified silicon nitride is conducive to the formation of uniform and dense microstructure can reduce the probability of grain drop, thereby reducing the grinding of microbead.The composite zirconia ceramic microbead prepared by the present application has high hardness and low self-abrasion, and the raw materials are widely available and the preparation method is simple, so it has good market prospect.

The invention relates to the technical field of grinding and polishing, in particular to a corrosion-resistant and wear-resistant liquid slip ring for precise grinding and polishing. The slip ring comprises a static part and a rotating part which are made of polyether-ether-ketone, and a wear-resistant sealing assembly comprising a zirconia ceramic wear-resistant spacer bush and a fluororubber sealing piece. All flow passage components are made of PEEK materials, so that pollution of metal ions to grinding fluid is completely eradicated; the high-hardness and high-smoothness ceramic wear-resistant spacer bush is used as a core rotating pair, so that the abrasive wear resistance is greatly improved; a multi-layer sealing protection system composed of a static seal, a fluororubber framework oil seal dynamic seal and an auxiliary isolation structure composed of small gaps is constructed, particles can be effectively retarded, impact can be effectively buffered, and it is ensured that long-term, stable and clean grinding fluid transmission is achieved under the working conditions of strong corrosion and high abrasion.