79results about How to "Easy to migrate" patented technology

The invention discloses a bending-resistant, high-rubber and wear-resistant anti-reflection film and a preparation method thereof. The anti-reflection film comprises a base material layer, a hardened layer, a high-refractive-index layer and a low-refractive-index layer which are sequentially stacked, the hardened layer is obtained by coating the base material layer with hardened layer coating liquid and then curing the hardened layer coating liquid; the hardened layer coating liquid is prepared from the following raw materials in parts by weight: 50-80 parts of hardened resin; 10 to 30 parts of flexible resin; 5-20 parts of a modified inorganic nanoparticle dispersion liquid; 3-6 parts of a first photoinitiator; 50 to 100 parts of a first solvent; wherein the flexible resin is flexible vinyl resin which is prepared by modifying epoxy vinyl ester resin through carbamic acid ester. According to the invention, optical design, formula design, thickness design and the like are carried out on a plurality of coatings, so that the requirements of appearance uniformity, hue uniformity and strong bonding force among laminated layers of the three coatings can be met, and the anti-reflection film has excellent antifouling, scratch-resistant, rubber friction-resistant and bending-resistant properties.

The invention provides a field-level rice yield remote sensing estimation method based on high-resolution total primary productivity and a dynamic harvest index, and the method comprises the following steps: firstly, obtaining a rice growth season time sequence Sentinel-2 image based on a remote sensing cloud platform, calculating a leaf area index, and obtaining meteorological data EAR5 products and CO2 data; then, a self-service sampling method and a multi-model process sensitivity analysis method are used for analyzing the influence rule of the rice growth season environment factors on the GPP, an improved double-leaf light energy utilization rate model is constructed, and high-resolution rice GPP high-precision estimation is achieved. And finally, forming an HIDYM method in combination with the dynamic harvest index to realize the yield estimation of the field-level rice in Jiangsu province for many years. The method can be used for quickly and accurately estimating the yield of the large-range field-level rice.

The invention discloses a method for processing asynchronous pipeline control adventure based on a lock mechanism, which is characterized in that a processor adopts a three-stage pipeline processor, an external interrupt of the processor transmits interrupt information to a data processing center through a network-on-chip, and a processor core exchanges data with the network-on-chip through the data processing center; in the processor core, lock registers are arranged between instruction prefetching and decoding, between decoding and execution and between execution and memory access, the result of the first-stage lock register is realized based on a click asynchronous controller, and the input end of the first-stage lock register is AND with a pmt signal after XOR; and other levels of lock registers adopt branch structures, after the remaining instructions in the assembly line are executed, the site is saved, then all locks are opened, and at the moment, the instructions fetched in advance enter a decoding stage normally. The asynchronous clock-free circuit design is adopted, the problems of clock skew and the like are avoided, normal instructions in an assembly line are not affected, the value taking time is saved, and the potential of low power consumption and high performance is achieved.

The invention belongs to the field of target recognition, and provides a small sample SAR target recognition method based on supervised comparative learning, which comprises the following steps of: constructing a global-local comparative learning pre-training framework aiming at global-local supervised comparative learning loss of SAR image classification, capturing available discriminant features outside the meta-training set, constructing a positive sample and a negative sample by using label information, taking a comparative learning loss of a local scale as another auxiliary target, calculating the similarity between given sample pairs by using spatial features, and calculating a spatial attention weight by using an attention mechanism so as to obtain a spatial attention weight; measuring one-to-one spatial similarity, and finally calculating SC loss; according to the method, global-local pre-training comparison loss for small sample SAR target recognition is provided, so that the model pays attention to semantic information with higher discrimination, and more features capable of being migrated to SAR images are learned from optical images.

The invention discloses a low-VOC (volatile organic compound) and high-conductivity thermoplastic resin composite material and a preparation method thereof. The thermoplastic resin composite material consists of the following components in parts by weight: 90-110 parts of thermoplastic resin, 10-16 parts of functional filler and 0.1-0.5 part of antioxidant, the functional filler is a doped mesoporous magnesium oxide / polyaniline composite material. The functional filler is adopted to modify the thermoplastic resin, so that small molecular substances in VOC can be adsorbed, and the VOC performance of the thermoplastic resin composite material is improved. The formation of a polyaniline gel conductive network structure can be promoted, and the conductivity of the thermoplastic resin composite material is enhanced. The material can be used in the fields of automobile and household appliance materials, and has excellent application prospects.

The invention provides a preparation method of a gradient bionic rotator cuff repair stent, the stent prepared by the method and application. The method comprises the following steps that 1, a gradient fiber structure is designed through conventional 3D modeling software; step 2, adding the raw materials into the barrel material, and printing a tendon scaffold by adopting a near-field direct-writing melting technology; 3, raw materials in the barrel material are replaced, and the cartilage scaffold is printed through the near-field direct-writing melting technology; optionally, replacing the raw materials in the barrel material, and printing the mineralized cartilage scaffold by adopting a near-field direct-writing melting technology; and 4, replacing the raw materials in the barrel material, and printing the bone scaffold by adopting a near-field direct-writing fusion technology. The stent disclosed by the invention has a structural gradient and a component gradient, is matched with natural bone tissues, and can better promote the repair of the bone tissues.

The invention relates to the technical field of bio-based polyester synthesis, in particular to a preparation method of poly (ethylene 2, 5-furandicarboxylate). Comprising the following steps: purification of 2, 5-furandicarboxylic acid: purifying the 2, 5-furandicarboxylic acid by sequentially adopting activated carbon, dealdehyding resin and a modified adsorbent, so that the content of acyl furoic acid, furoic acid and aldehyde impurities can be effectively reduced, side reactions are reduced, and the chroma of a finished product is reduced. Adding the purified 2, 5-furandicarboxylic acid, ethylene glycol, a composite catalyst and a composite stabilizer into a reaction container, and carrying out esterification reaction and polycondensation reaction to obtain 2, 5-furandicarboxylic acid glycol ester; a mixture of aluminum acetylacetonate, antimony triphenyl diacetate and zinc acetate is used as a catalyst of poly (ethylene 2, 5-furandicarboxylate), so that the color of PEF can be effectively improved.

The invention relates to the field of iron phosphate preparation, in particular to heterogeneous doped iron phosphate, a preparation method thereof and heterogeneous doped lithium iron phosphate, and the preparation method of the heterogeneous doped iron phosphate comprises the following steps: S1, preparing a titanium-containing iron source solution and a phosphorus source solution; s2, mixing and reacting the iron source solution, the phosphorus source solution and an oxidizing agent to prepare titanium-doped amorphous iron phosphate; s3, aging and crystal transformation are conducted on the titanium-doped amorphous iron phosphate, and titanium-doped iron phosphate dihydrate is prepared; s4, uniformly adding a secondary doping aid into the titanium-doped iron phosphate dihydrate to form secondary doped iron phosphate dihydrate; the secondary doping aid contains at least one element of titanium, vanadium or niobium; and S5, dehydrating and drying the secondary doped iron phosphate dihydrate, and then carrying out high-temperature calcination to form the heterogeneous doped iron phosphate. The whole process is simple and controllable in technological process, stable in quality, low in cost and easy to industrially popularize, and the prepared lithium iron phosphate material is excellent in gram volume and rate capability and wide in application field.

A preparation and surface coating method of a carbon nanotube modified coating for improving surface flashover voltage of an epoxy composite material belongs to the field of high-voltage insulating materials, and comprises the following steps: weighing preheated epoxy resin and anhydride curing agent according to a ratio, putting into an oil bath environment, stirring, adding an accelerant, and continuously stirring; the defoamed solution is poured into a mold and placed in a drying oven for multi-stage heating curing, and an epoxy matrix is obtained; mixing the dried 0.15 wt% of carbon nanotube particles with an anhydride curing agent, and then carrying out mixed ultrasonic treatment by adopting an ultrasonic instrument; adding the preheated epoxy resin into a mixture of the carbon nanotube particles and the anhydride curing agent, stirring, adding an accelerant, continuously stirring, and carrying out vacuum defoaming, so as to obtain a coating material; and coating the surface of an epoxy matrix with the coating material, and putting the epoxy matrix into a drying oven for multi-stage drying and curing to obtain the insulating material coated with the surfaces of the epoxy / carbon nanotube particles. According to the method provided by the invention, the surface electric field distortion can be obviously reduced, and a foundation is laid for improving the direct-current surface flashover performance of the insulating material.

The invention provides a crop growth simulation platform integration method and a crop growth large model construction method, and relates to the technical field of agricultural information prediction, and the method comprises the steps: obtaining the crop growth state, crop variety characteristics, climate factors, soil characteristics and field management information of each crop in a whole cycle; and obtaining crop growth variables of the crops in the whole period through semantic analysis. Automatically dividing crop growth variables to obtain a dynamic covariable, a static covariable and a time sequence process variable of crop growth, and performing embedding to obtain embedded vectors corresponding to the dynamic covariable, the static covariable and the time sequence process variable; and performing full-parameter training on the initial large language model according to the embedded vector to obtain a crop growth large model. The method improves the prediction precision of the model, enhances the generalization ability and adaptability of the model, enables the model to better cope with variable environmental conditions and different crop varieties, and improves the use effect of the crop growth model in crop growth state prediction.

The invention discloses a high-temperature-resistant PVC composite cable material and a preparation method thereof. The high-temperature-resistant PVC composite cable material comprises the following raw materials in parts by weight: 60-100 parts of PVC resin, 10-15 parts of mica powder, 3-5 parts of epoxidized soybean oil, 8-10 parts of a calcium-zinc stabilizer, 2-5 parts of a plasticizer and 5-10 parts of a synergistic flame retardant. The mica powder and the synergistic flame retardant are added, the cable material can be endowed with excellent flame retardance through an inorganic-organic synergistic effect, and the prepared synergistic flame retardant is of a hyperbranched structure, so that the compatibility of the flame retardant and a matrix can be improved, a micromolecular flame retardant is prevented from being easily migrated, and the flame retardant effect is improved.

The invention relates to the technical field of lithium batteries, in particular to a lithium cobalt oxide electrode material and a preparation method thereof, an electrode plate and a preparation method thereof, a lithium battery and electronic equipment. The preparation method comprises the following steps: mixing a sodium source, a potassium source, a silicon source, an aluminum source and M metal salt according to a preset molar ratio to obtain a precursor; adding the precursor into deionized water, and uniformly stirring to obtain a solution A; then adding lithium cobalt oxide powder into the solution A, and continuously stirring to obtain a mixed solution; after the reaction of the mixed solution is completed and the mixed solution is dried, a mixture is obtained, and after the mixture is sintered and ground, the required amorphous oxide coated lithium cobalt oxide electrode material is obtained. In the sintering process, the surface of the lithium cobalt oxide material is coated with the amorphous oxide layer, the lithium cobalt oxide material is coated with the amorphous oxide layer, and the structural stability of the lithium cobalt oxide material is improved; in the process, metal elements such as N , K, A < l > and M are correspondingly doped into ion sites of lithium cobalt oxide, so that the conductivity and the capacity density of the lithium cobalt oxide material are improved, and an ion framework of the lithium cobalt oxide material is expanded.

The invention discloses a super-hydrophobic PVC material and a preparation method, the super-hydrophobic PVC material comprises the following raw materials by weight: 100 parts of PVC resin, 1-3 parts of TPE, 1.5-2 parts of titanium dioxide, 1-3 parts of CR, and 5-12 parts of a performance additive, the particle size of the performance additive is 300-400 nm, the performance additive takes inorganic hard particles as a core, the exterior of the performance additive comprises a continuous anti-sticking layer and an uncovered anti-sticking bonding surface, and the surface of the performance additive is coated with an anti-sticking layer. According to the PVC material disclosed by the invention, hydrophobic modification can be performed on the surface of the PVC material and a large number of hydrophobic nano salient points are formed under the conditions that the addition amount of fluorine-containing organic silicon resin is small and the strength performance of the PVC material is kept to reach the standard, so that the hydrophobicity of the surface of the PVC material is remarkably improved; infiltration of water on the surface of the PVC material is reduced, hair can be washed away conveniently, and accumulation of hair on the inner wall of a PVC pipe made of the PVC material is reduced.

The invention relates to a sodium ferric sulfate material as well as a preparation method and application thereof, and belongs to the technical field of energy storage. The sodium ferric sulfate material provided by the invention comprises a sodium ferric sulfate crystal phase, and at least part of the surface of the sodium ferric sulfate crystal phase is coated with a sodium ferric sulfate amorphous phase. According to the invention, at least part of the surface of the sodium ferric sulfate crystal phase is coated with the high-stability sodium ferric sulfate amorphous phase, so that contact between internal sodium ferric sulfate crystal phase particles and air is effectively isolated, and the air stability of the sodium ferric sulfate material is improved; and the amorphous phase provides abundant vacancy defects, so that the metal migration is easier than that in the crystalline phase, and the electrode dynamics is promoted. The sodium ferric sulfate material provided by the invention has good air stability, rate capability and long cycle performance, the material can be placed in air for a long time, the electrochemical performance is not obviously degraded after the material is placed for 12 months, and the material can be used for preparing a sodium ion battery with high performance.

The invention relates to the field of building waterproofing, and discloses a plasticizer and a preparation method thereof, a composition for a polyether waterproof coating, the polyether waterproof coating and a preparation method of the polyether waterproof coating. The method for preparing the modified polyether plasticizer comprises the following steps: (1) in a protective atmosphere, in the presence of a base catalyst, stirring and mixing alpha, omega-dihydroxy polydimethylsiloxane and alkylene oxide to obtain an intermediate I; and (2) contacting and mixing a neutralizer with the intermediate I to obtain the modified polyether plasticizer, relative to 100 parts by weight of the alpha, omega-dihydroxy polydimethylsiloxane, the use amount of the base catalyst is 0.1 to 1 part by weight, the use amount of the alkylene oxide is 400 to 900 parts by weight, and the use amount of the neutralizer is 0.12 to 1.2 parts by weight. The silane modified polyether waterproof coating prepared from the modified polyether plasticizer provided by the invention has obviously better weather resistance.

The present invention relates to the field of non-standard parts defect detection methods, and in particular to a non-standard parts defect detection method based on pixel-level deep network feature matching. The method is based on a point matching and alignment algorithm based on deep features and a pixel comparison algorithm based on deep features. The network structure of the point matching and alignment algorithm includes an image encoder, a point feature extractor, a pixel feature extractor, and a pixel comparison network. The present invention proposes a novel deep learning defect detection method that can effectively make high-precision pixel-level predictions based on smaller samples. Since a pixel-level comparison strategy is adopted instead of pixel-level prediction or anomaly detection, deep learning can more easily transfer the knowledge learned from the original similar data set to the current data, thereby avoiding the overfitting problem often encountered in deep learning to a large extent.

The invention discloses an extraction device and an extraction method of star anise essential oil, and belongs to the technical field of vegetable oil extraction. The extraction device provided by the invention comprises a round-bottom flask, an air condensation pipe, a distillation head, a condensation pipe, a receiving pipe and a receiving bottle, the opening of the round-bottom flask is connected with the bottom of the air condensation pipe; the top of the air condensation pipe is connected with a bottom end pipe of the distillation head; a side end pipe of the distillation head is connected with the top of the condensation pipe; the bottom of the condensation pipe is connected with the top of the receiving pipe; inserting the tail part of the receiving tube into a receiving bottle; and a polymeric membrane is loaded at the top of the air condensation pipe. According to the extraction device and the extraction method of the star anise essential oil, the problems of long time consumption, large steam consumption and high energy consumption in a traditional extraction process are solved, and meanwhile, the extraction rate of the star anise oil and the extraction rate of the effective component anethole are greatly improved.

The invention discloses a compliance text graph training set construction method and device, equipment and a storage medium, and the method can extract compliance corpus data from an open source training dataset according to compliance evaluation information after the open source training dataset is obtained, and then carries out the reverse deduction of cue words based on compliance pictures in the compliance corpus data. And inputting the cue word into the target text graph model to generate an expanded image through the target text graph model, and constructing a compliance text graph training set according to the cue word, the expanded image and the compliance corpus data. According to the method, the compliance training set adaptive to the specified business scene can be constructed based on the open source training data set, and the construction period of the data set is shortened. And the data volume of the training data set is increased by expanding the image, so that the text graph model can output a more accurate image generation result after the constructed training data set is applied.

The invention belongs to the technical field of rosemary extract preparation, and discloses a rosemary extract preparation method, which comprises: S1, raw material preparation and pretreatment: a, selecting high-quality rosemary as a raw material; b, carrying out drying treatment on the picked rosemary; through the high-pressure micro-jet technology, the extraction time is greatly shortened, and the production efficiency is improved; the cell structure of the raw material is physically destroyed through the high-pressure treatment process, the use of chemical solvents is avoided, so that the purity and safety of the extract are ensured, the quality of the extract can be further optimized by accurately controlling treatment parameters (such as pressure, flow, temperature and cycle index), and the extract is ensured to meet the requirements of high quality and high purity; essential oil components can be more thoroughly released by utilizing a high-pressure micro-jet technology, so that the yield of an extract is improved, more impurities and bad components can be removed through multiple times of circulating jet finishing treatment, and the purity of the essential oil is improved.

The invention discloses a high-safety lithium manganese iron phosphate battery and a preparation method thereof, and belongs to the technical field of lithium ion batteries. A preparation method of a high-safety lithium manganese iron phosphate battery comprises the following steps: S1, sintering a magnesium ion doped lithium manganese iron phosphate material and a three-dimensional carbon material, pyrolyzing the three-dimensional carbon material, depositing the pyrolyzed three-dimensional carbon material on the surface of the magnesium ion doped lithium manganese iron phosphate material to form a carbon layer, and cooling, crushing and grinding to obtain a magnesium ion doped lithium manganese iron phosphate material; the three-dimensional carbon layer coated magnesium ion doped lithium manganese iron phosphate positive electrode material is obtained; and S2, preparing a positive plate by taking the three-dimensional carbon layer coated magnesium ion doped lithium manganese iron phosphate positive electrode material as a raw material, and assembling the battery. By combining magnesium ion doping and three-dimensional carbon material coated lithium manganese iron phosphate material, the Li < + > diffusion rate and electronic conductivity of the lithium manganese iron phosphate material are improved, and the prepared battery not only has high safety, but also has high discharge capacity and excellent rate capability.

The present invention discloses a health analysis open service system and method. The system includes: a labeling subsystem, which is configured to label sample images and generate multiple data sets based on preset labeling rules, and convert the data sets into data sets that can be understood by deep learning algorithms; an algorithm subsystem, which is configured to provide an online programming environment, and generate one or more health deep learning models based on the converted data sets and the online programming environment; a health business subsystem, which is configured to use one or more of the health deep learning models to analyze the received images to be analyzed, and generate health analysis results. The present invention solves the technical problem that the health analysis efficiency and quality provided by the existing health analysis system are not high enough.

The invention belongs to the technical field of soil curing agents, and particularly relates to an anti-freeze-thaw sludge curing agent and a preparation method and application thereof. The sludge curing agent comprises the following raw materials in parts by mass: 40-60 parts of cement, 10-20 parts of an admixture, 10-20 parts of quicklime, 5-10 parts of gypsum, 5-8 parts of carboxylated porous resin, 0.5-0.8 part of a nonionic surfactant and 5-8 parts of activated carbon, and the carboxylated porous resin is of a three-dimensional network structure formed by condensation reaction of phenolated alkali lignin and dialdehyde. Meanwhile, porous resin microspheres are formed by utilizing a pore-foaming agent, and then the porous resin microspheres, chloroacetic acid and alkali are subjected to a reaction to prepare carboxylated porous resin microspheres. According to the non-ionic surface active agent disclosed by the invention, organic matters which are easy to migrate and free in the sludge are emulsified into micro-micelles, and the micro-micelles are adsorbed by the activated carbon, so that the micro-micelles are prevented from wrapping gel particles, hydration is hindered, a communicated pore network is prevented from being formed, and the freeze-thaw resistance of a sludge solidified body is improved. The inner surfaces of pores of carboxylated porous resin contain a large amount of phenolic hydroxyl groups and carboxyl groups, so that the migration activity of heavy metal ions is reduced.

The invention provides a component configuration processing method, a component release platform, a device and a storage medium, and the method comprises the steps that after a component package is uploaded to the component release platform, the component release platform can carry out verification processing on the component package, so that the standardization and safety of the component package are ensured; and static resources and configuration item information in the component package are converted, so that the component package is easier to expand and migrate. Compared with the prior art, the method has the advantages that the development tools and the development languages of the user for developing the component are not limited, so that the learning cost of the user for developing the component is reduced, and the component development efficiency is improved.

The invention discloses a method for processing asynchronous pipeline control hazards based on a lock mechanism. The processor adopts a three-level pipeline processor, and the interrupt of its peripherals transmits interrupt information to a data processing center through an on-chip network. The processor core exchanges data with the on-chip network through the data processing center. Lock registers are set between instruction pre-fetching and decoding, between decoding and execution, and between execution and memory access in the processor core. The result of the first-level lock register is realized based on a click asynchronous controller, and its input end is ANDed with a PMT signal after XOR; other-level lock registers adopt a branch structure. When the remaining instructions in the pipeline are executed, the scene is saved, and then all locks are opened. At this time, the instructions taken in advance will enter the decoding stage normally. The invention adopts an asynchronous clock-free circuit design, avoids problems such as clock skew, does not affect normal instructions in the pipeline, and saves the time of value acquisition, and has the potential of low power consumption and high performance.

This invention discloses a fault detection method based on deep temporal causal discovery, comprising: acquiring observed values ​​of abnormal performance indicators and potential cause indicators and their paired timestamps; structuring the observed values ​​and timestamps to form a uniform time series; constructing an iterative deep temporal causal discovery network, wherein the causal discovery module samples and optimizes the probabilistic causal graph according to a pre-set causal threshold, and the time series fitting module fits the generated model of the time series; using multiple causal thresholds, the iterative deep temporal causal discovery network is trained using the structured time series, with a mask loss function used during training; and attributing the fault causes based on the training results of multiple causal thresholds. The beneficial effects of this invention are that it can utilize neural networks to intelligently learn nonlinear temporal dynamic relationships in complex factory environments, quickly and automatically complete the fault root cause analysis process, and can be easily transferred to unfamiliar environments.

The invention discloses a seawall overtopping height visual measurement and early warning method and a seawall overtopping height visual measurement and early warning device. The invention aims to provide a method and a matched device for measuring the continuous height of seawall overtopping waves in a non-contact manner by adopting a visual means and carrying out early warning on overtopping waves beyond warning. The system has the functions of seawall overtopping visual monitoring, spindrift height real-time calculation and breakwater overtopping judgment, and seawall submerging pre-alarm is achieved. The method comprises the following steps: S1, obtaining seawall height measurement data, and generating a virtual equal-height field plane; s2, carrying out seawall overtopping visual monitoring to obtain a spindrift coverage area; s3, combining the virtual equal-height field plane and the spindrift coverage area to calculate the spindrift height; and S4, triggering a seawall submerging pre-alarm when the height exceeds the warning spray height. According to the invention, the seawall safety can be evaluated in real time, the seawall safety pre-alarm is realized, the alarm accuracy is high, and the seawall emergency response system is helped to be perfected.

The present invention provides a method for preparing antibacterial and degradable spandex, specifically: polyether polyol and 4,4-diphenylmethane diisocyanate are mixed together in a ratio of 1:1.6 to 1.9 in terms of the amount of substance, and a polymerization reaction is performed to obtain a NCO-terminated prepolymer, and then N,N-dimethylacetamide solvent is added to fully dissolve the prepolymer to obtain a prepolymer solution; a quaternary ammonium salt chain extender, an amine chain extender, and a chain terminator are added to the prepolymer solution obtained in step 1 in order to perform a chain extension reaction and a termination reaction to obtain an antibacterial spandex spinning stock solution, and dry spinning is performed in a high-temperature tunnel after aging to obtain antibacterial spandex, and the temperature of the tunnel is set to 180°C to 270°C. The spandex prepared by the present invention not only has antibacterial properties, but also can be degraded in a humid environment. It is suitable for the fields of disposable diapers, bandages, wet wipes, disposable underwear, masks, etc.

A phosphorus-modified MFI-structured molecular sieve, which is characterized in that the molecular sieve has a K value, satisfying: 70% ≤ K ≤ 90%; for example, 75% ≤ K ≤ 90%; further for example, 78% ≤ K ≤ 85%; wherein, the K value is as defined in the specification; the present invention also relates to a cracking auxiliary or cracking catalyst comprising the phosphorus-modified MFI molecular sieve, and a process of preparing the same and use thereof.

The invention discloses a low-viscosity, wear-resistant and anti-corrosion composite coating on the surface of a screw and a preparation method thereof.The composite coating comprises a hard plating layer and an organic coating from inside to outside, the hard plating layer is formed on the surface of a screw base material and is made of a hard alloy material, the hard alloy material is CrIrNiN, and the organic coating is made of a hard alloy material. The organic coating adopts polyimide of which the side chain is grafted with a siloxane group and an o-carborane group. The composite coating for the surface of the screw rod, which is composed of the hard coating and the organic coating, is prepared through a multi-arc ion plating and pulse magnetron sputtering composite deposition technology, so that the coating is endowed with the characteristic of low surface energy on the basis of keeping the hardness of the coating, the mutual adhesion performance between the coating and a material is reduced, and the service life of the coating is prolonged. And the wear resistance, corrosion resistance and other properties of the surface of the screw are effectively improved.

The invention provides a super-sharp ceramic tile cutting disc which comprises a base body and a cutting part located on the edge of the base body, and the cutting part comprises, by weight, 65-80 parts of diamond particles, 10-25 parts of an iron pentacarbonyl compound, 35-55 parts of a binding agent and 30-40 parts of copper-coated carbon with the particle size being 0.5-0.6 mm. According to the super-sharp ceramic tile cutting disc, the copper-coated carbon compound is applied, so that the cutting efficiency is improved; copper-coated carbon and diamond particles are combined more firmly, the cutting efficiency is higher, the edge breakage effect of the ceramic tile is effectively improved, the iron pentacarbonyl compound is applied and serves as a catalyst, so that the combination is firmer, the hardness is effectively improved, paraffin is gradually burnt in the sintering process, pores are formed, diffusion channels are provided by the pores, and the service life of the ceramic tile is prolonged. By means of the method, atoms or molecules among particles can be migrated more easily, combination among the particles is promoted, along with rising of the sintering temperature, pores begin to be closed gradually, the contact area among the particles is increased, the particles begin to be rearranged, and the abrasion resistance and hardness are effectively improved.