18results about How to "Good coating performance" patented technology

The invention relates to the technical field of metal material treatment, and particularly provides an aluminum alloy surface protective coating and a preparation method thereof. The method comprises the following steps: after a to-be-treated aluminum alloy sample is cleaned and no residual liquid exists, sequentially carrying out solution treatment and aging treatment on the aluminum alloy; and immersing the obtained aluminum alloy sample into a conversion film solution, carrying out deposition treatment, and drying to obtain the aluminum alloy sample with the surface protective coating. By combining solid solution treatment and aging treatment with a conversion film process, the wear resistance of the surface of the aluminum alloy is improved, the aluminum alloy is suitable for a higher friction environment, the adhesive force and corrosion resistance of a film layer are improved through multiple treatments of solid solution, aging and the conversion film, and the service life of the aluminum alloy is prolonged.

A raw material adding device for plastic product production comprises a box body, a conveying roller in the horizontal direction is arranged in the box body in a penetrating mode, the two ends of the conveying roller are arranged on the inner wall of the box body, lyophobic holes are formed in the conveying roller, a partition plate is arranged in the middle of the interior of the box body and divides the interior of the box body into a coating area and a dust removal area, and the coating area comprises a water pump, a material storage box, a liquid outlet pipe and a spray head; a storage box is arranged at the top of the box, a water pump is arranged on one side of the storage box, a liquid outlet pipe is inserted below the storage box and penetrates through the outer wall of the box, a nozzle is arranged below the liquid outlet pipe, and a motor is arranged on the side, away from the storage box, of the top of the box. Efficient dust removal of the surfaces of raw materials is achieved through the cleaning brush and the dust collection system; the height of the cleaning brush is adjusted through the electric telescopic rod, and the cleaning brush can adapt to raw materials of different specifications; the dust suction pipe is connected with the outside of the box body and sucks dust generated in the dust removal process, so that the dust is effectively prevented from polluting the working environment, and the cleanliness and the overall quality of a product are improved.

The present invention discloses a coating and a preparation method and application thereof, and a coated product, belonging to the technical field of polymer materials. The raw material components of the coating provided by the present invention include: an amount of 30 to 100 parts of epoxy resin, an amount of 1 to 100 parts of curing agent, and an amount of 0.3 to 100 parts of a needle-shaped filler composition; the needle-shaped filler composition includes needle-shaped wollastonite, needle-shaped bentonite, and needle-shaped feldspar powder. The present invention improves the epoxy resin with a specific combination of needle-shaped fillers, significantly enhancing the corrosion resistance, high temperature resistance, and wet heat stability of the epoxy resin coating, and can meet the application requirements in extremely harsh environments such as high humidity and heat, acid and alkali corrosion.

The invention relates to the technical field of materials, in particular to mobile phone rear cover coating liquid as well as a preparation method and application thereof. Comprising the following raw materials in parts by weight: 20-40 parts of composite resin, 1-5 parts of a curing agent, 40-60 parts of a diluent, 8-16 parts of a polymerizable monomer, 6-10 parts of a photoinitiator, 1-5 parts of chiral molecules, 1-3 parts of a filler, 1-5 parts of a coupling agent, 0.5-1.5 parts of a leveling agent, 4-8 parts of modified fibers, 4-8 parts of a polyurethane prepolymer and 1-3 parts of tourmaline. The coating liquid has good coating performance, the appearance of a coating is effectively improved, the coating has good toughness, after the coating liquid is coated on the rear cover of the mobile phone, the polymerizable monomer is subjected to a polymerization reaction through illumination, meanwhile, the curing agent, the resin and other components are subjected to a curing reaction, and the coating is gradually formed and cured on the rear cover of the mobile phone.

The utility model is suitable for the technical field of wood processing, and provides a wood gluing machine capable of uniformly gluing, which comprises an operation table, supporting frames are installed on the left side and the right side of the operation table correspondingly, and rotating rollers are rotationally installed at the front end and the rear end of the operation table correspondingly. According to the wood gluing machine with the uniform gluing function, the conveying belt is arranged to convey wood boards at the uniform speed, coating is sprayed to the surfaces of the wood boards at the uniform speed, the wood boards can pass through the first scraping plate after spraying is completed, and along with uniform-speed conveying of the wood boards, the coating on the surfaces of the wood boards can be scraped to be flat through the first scraping plate; through the arrangement of a recycling box and a second scraping plate, along with continuous conveying of the conveying belt, the coating falling onto the surface of the conveying belt can be scraped down by the second scraping plate and flows into the recycling box to be collected, and through the arrangement of a draught fan and an air groove, air blowing and dust removal can be conducted on the wood board; therefore, the subsequent coating effect is improved.

The invention belongs to the technical field of blade investment casting, and relates to a method for eliminating grain boundary cracks of a large-size directional hollow blade, which is used for casting directional column crystal working blades of gas turbines and the like with the transverse size exceeding 130mm. The method comprises the following steps of: when a wax mold is trimmed, adhering a cylindrical wax stick to a mold core positioning position extending out of a tail edge; the coating property of the enhanced shell slurry is used for increasing the thickness of the shell at the position; when the modules are combined, wax pattern baffles are arranged outside the front and tail edges, so that the heat dissipation speed of the front and tail edges is reduced; and during directional solidification, the standing time of the alloy liquid after casting is prolonged so as to slow down the solidification rate of the initial position of the blade tip, so that cracks at the directional grain boundary caused by overlarge transverse solidification stress are eliminated, and the casting qualification rate of the large-size directional gas turbine working blade is improved.

The invention discloses a method for enhancing paint spraying adhesive force of a metal material of an aircraft composite material packaging box, and belongs to the field of composite material packaging boxes. The method comprises the steps that the metal surface of the aircraft composite packaging box is pretreated; a metal adhesion promoter is diluted, then the pretreated metal surface is coated with the metal adhesion promoter, a protective film is formed on the metal surface, and then baking and curing are conducted; and after baking and curing are completed, paint spraying operation is conducted, primer is sprayed firstly, and then finish paint is sprayed. The paint spraying adhesive force of the metal material of the aircraft composite material packaging box can be effectively improved.

The present invention relates to a polymer resin composition capable of realizing properties such as excellent heat resistance while having improved coating properties in an inorganic film, a method for preparing a polymer resin film, a substrate for a display device using the polymer resin film, and an optical device.

The invention relates to the field of chromium-molybdenum steel-based gas cylinder pipes, in particular to a chromium-molybdenum steel-based gas cylinder pipe and a preparation method thereof. The preparation method comprises the following steps: preparing a chromium-molybdenum steel base tube from 34CrMO4 steel, preparing a dimethylolpyridine molybdate complex by taking molybdenum trioxide and 2, 6-dimethylolpyridine as raw materials and zinc chloride as an auxiliary agent, and modifying a polyurethane prepolymer by using the dimethylolpyridine molybdate complex to obtain a molybdate modified polyurethane prepolymer; mixing and reacting the molybdate modified polyurethane prepolymer and epoxy resin to prepare modified epoxy resin; mixing the modified epoxy resin, zinc powder, polydopamine modified graphene, an epoxy diluent, a flatting agent, a defoaming agent and an epoxy curing agent to prepare an epoxy resin coating; and the chromium-molybdenum steel pipe is coated with the epoxy resin coating, and the chromium-molybdenum steel-based gas cylinder pipe is obtained. The prepared chromium-molybdenum steel-based gas cylinder pipe is good in hydrogen resistance and can be used for hydrogen and natural gas transportation.

The utility model discloses rapid coating equipment for a narrow steel structure node area, which comprises a telescopic sleeve rod and a functional handle which is arranged on the telescopic sleeve rod and is held by a worker, a spraying main pipe is arranged on the telescopic sleeve rod, the tail end of the spraying main pipe is provided with a spraying rod for spraying a steel structure node through an adjusting mechanism, and the spraying rod is provided with an adjusting mechanism. A nozzle is arranged at the bottom of the spraying rod, and a windproof cover which covers the nozzle and is used for preventing wind is installed on the spraying rod through a convenient-to-disassemble mechanism. The utility model relates to the technical field of coating equipment. According to the rapid coating equipment for the narrow steel structure node area, through mutual cooperation of the arranged threaded butt joint sleeve and the external threads, a wind-proof cover can be rapidly installed, meanwhile, the wind-proof cover can achieve a certain wind-proof effect, and then a better coating effect can be achieved.

The invention discloses a tank processing technology and a cleaning device, and belongs to the technical field of storage and transportation equipment. The process comprises an anti-corrosion procedure, a welding procedure, an anti-corrosion procedure and a heat treatment procedure, the heat treatment procedure comprises the four steps of preheating, heating, constant temperature keeping and cooling, iron in a tank body and zinc in a galvanized coating can be effectively and mutually diffused, a coated steel plate of a zinc-iron alloy phase layer is formed, and the iron content of the surface of a coating is increased; further, the inner wall of the tank body has better corrosion resistance, welding performance, coating performance and gravel impact resistance; according to the tank body machining process, the problem that the anti-corrosion effect is poor due to the fact that the quality of a galvanized coating is poor is solved.

Liquid polybutadiene, and a preparation method therefor and an application thereof. The liquid polybutadiene has a number-average molecular weight of 2,500-5,500, and a molecular weight distribution index of 1-1.2; based on the total amount of the liquid polybutadiene, the content of a 1,2-structural unit in the liquid polybutadiene is 85-95 wt%, the content of a 1,4-structural unit in the liquid polybutadiene is 5-15 wt%, and the molar ratio of a cis-1,4-structural unit to a trans-1,4-structural unit in the liquid polybutadiene is 1-2 : 1; and the dynamic viscosity of the liquid polybutadiene at 45°C is 100-500P. The liquid polybutadiene has good flowability, good film formability, and good coating performance, and a formed coating has an improved adhesion force to a substrate.

The invention relates to a water-based single-component acrylate coating and a preparation method thereof, and belongs to the technical field of coatings. Diethyl thiocarbamate groups and tetrahydroquinoxaline sulfonyl groups with different contents are grafted in phytic acid, and thiocarbonyl groups and tertiary amine groups in the diethyl thiocarbamate groups and hydrophilic tetrahydroquinoxaline groups and sulfonyl groups in the tetrahydroquinoxaline sulfonyl groups are utilized, so that the synthesis efficiency of the phytic acid is improved. The stability of the acrylate emulsion and the adhesive force, alkali resistance, corrosion resistance, pollution resistance and flame resistance of the water-based single-component acrylate coating are improved.

An adhesive composition contains a modified polyolefin resin. The polyolefin resin is obtained by modifying a polyolefin resin with an unsaturated carboxylic acid and a radically reactive aromatic compound. The polyolefin resin has a heat of fusion of 10 J / g or less, which is measured in conformity with JIS K7122. A modified content of the unsaturated carboxylic acid content with respect to the modified polyolefin resin is more than 0.5% by mass and less than 5% by mass. A modified content of the radically reactive aromatic compound with respect to the modified polyolefin resin is 0.1% by mass or more and less than 3% by mass.

The application discloses an environment-friendly antifouling paint based on synergistic effect of natural products, belongs to the technical field of paints and is suitable for biological fouling protection of ships, ocean platforms and offshore wind power towers. The paint is composed of natural product antifouling agent 5-20 parts, environment-friendly film forming agent 30-50 parts, dispersing agent 2-5 parts, thickening agent 1-3 parts, defoaming agent 0.5-2 parts and environment-friendly solvent 20-40 parts in parts; the natural product antifouling agent is formed by compounding marine plant extract and plant essential oil at a ratio of 1:1-3:1, and a synergistic mechanism of 'inhibition-kill-repell' is formed. The application has the advantages of simple preparation process, no special equipment, no heavy metal and organic tin in the paint, biological degradation rate greater than or equal to 80%, high antifouling efficiency, long effective period, strong coating adhesion and the like, solves the defects of poor environmental protection and poor synergy of the existing antifouling paint, is suitable for long-term service requirements in three fields and has high practical value and industrialization popularization prospect.

The invention belongs to the technical field of tungsten carbide spraying, and particularly relates to a tungsten carbide spraying process and a spraying mechanism, which comprise the following steps: step 1, workpiece cleaning: using an ultrasonic cleaning machine with the frequency of 28-40kHz, cooperating with a neutral cleaning agent with the concentration of 3-5% and the cleaning time of 10-15 minutes, effectively shaking off small particle pollutants, and cleaning impurities on the inner surface and the outer surface of a workpiece; according to the tungsten carbide spraying process and the spraying mechanism, by adopting the refined tungsten carbide spraying process, efficient protection of the surface of a workpiece is successfully achieved, and the remarkable beneficial effects that the cleanliness of the surface of the workpiece and the binding force of a coating are greatly improved, and the stability and durability of the coating in a complex environment are ensured. And meanwhile, through optimized spraying parameters and accurate coating thickness control, the coating has excellent hardness and wear resistance, the service life of the workpiece is remarkably prolonged, and the reliability of the workpiece is remarkably improved.

The application discloses a surface coating of an induction coil of a medium-frequency welding machine and a preparation method thereof. The surface coating comprises a transition layer and a surface layer. The transition layer is composed of nickel-aluminum, aluminum oxide and coated powder in a weight ratio of 85-90:5-8:5-10. The surface layer is composed of aluminum oxide and potassium silicate in a weight ratio of 94-98:2-6. The coated powder is formed by coating zirconium diboride with calcium fluoride. The thickness of the transition layer is 30-150 microns. The thickness of the surface layer is 200-500 microns. The prepared coating has good bonding strength and insulation performance, and the preparation method is simple and efficient, and is suitable for various industrial applications.

The application discloses a composite powder reinforced radiation refrigeration coating and a preparation method thereof, and relates to the technical field of coating.The multistage surface modification functional powder, the water-based polyurethane resin and the polyisocyanate curing agent are used, the problems of unbalanced radiation refrigeration performance, slow drying speed, poor mechanical performance and environmental stability, and insufficient weather resistance of the existing coating are solved, the application scenarios of efficient cooling, weather resistance, corrosion resistance and long-term stable service are met, and the coating can be widely applied to the fields of building outer walls, metal components, cold chain equipment, outdoor facilities and the like.