31results about How to "Excellent salt spray performance" patented technology

The invention provides nano oxide inorganic coated phosphite powder. The nano oxide inorganic coated phosphite powder is characterized in that phosphite is used as the core, nano oxide is used as the shell to wrap the phosphite, and the mass of the nano oxide is 0.1-10% of the mass of the phosphite. The invention further discloses waterborne coating containing the nano oxide inorganic coated phosphite powder. The waterborne coating is prepared by emulsion base materials, water, the nano oxide inorganic coated phosphite powder, auxiliary pigment, filler, pH regulator and auxiliaries. The nano oxide inorganic coated phosphite powder has the advantages that the phosphite is modified through inorganic coating to increase the dispersing performance and application performance of the phosphite so as to allow the phosphite to be applicable to materials such as ink, plastics, rubber, papermaking and coating, the corrosion resistance, thermal stability, aging resistance, weather resistance and the like of the corresponding materials are increased, and the service life of the corresponding materials is prolonged.

The embodiment of the invention provides a heat dissipation type car caliper cover. The car caliper cover comprises a cover body and a fixing part for fixing the cover body to car calipers. A first arc-shaped side plate is arranged on the outer side of the cover body, and a second arc-shaped side plate is arranged on the inner side of the cover body. The fixing part is arranged on the first arc-shaped side plate. A heat transfer assembly is arranged on the first arc-shaped side plate. The heat transfer assembly comprises an elastic pressing sheet and a silica gel sheet arranged on the elasticpressing sheet. When the cover plate is fixed to the car calipers, the silica gel sheet and the outer side wall of a pump body of the car calipers can be in contact through the elastic pressing sheet,and heat can be conducted to the cover body for heat dissipation. According to the heat dissipation type car caliper cover, by arranging the heat transfer assembly on the first arc-shaped side plate,heat transfer is carried out through the elastic pressing sheet and the silica gel sheet, and heat generated by the caliper piston pump body can be fast dissipated.

The invention relates to a paint and particularly relates to a matt coating paint. The matt coating paint is prepared from the following components in percentage by weight: 35-45% of modified alkyd resin, 20-30% of tung oil, 10-16% of an epoxy resin composition, 2-5% of terephthalic acid, 12-16% of palm kernelate, 5-8% of ethyl methacrylate, 1-3% of matt acrylic paint, 5-10% of polyvinyl butyral, 3-5% of a defoaming agent, 2-4% of an emulsifying agent and the balance of a paint thinner. A high net structure formed by drying a painted film is less in possibility of ageing, soft and firm, friction-resistant, good in water resistance, alkali-resistant, dampness-heat-resisting, mildew-resisting, excellent in salt spray resistance, mineral-oil-resisting and good in alcohol solvent resistance.

The invention relates to a preparation method of a coating, in particular to a preparation method of a low-temperature curing environment-friendly water-based chromium-zinc-aluminum-free coating, and the prepared low-temperature curing environment-friendly water-based chromium-zinc-aluminum-free coating is free of hexavalent chromium, lead, mercury and cadmium heavy metal ionic compounds and free of volatile toxic solvents such as benzene and xylene. The low-temperature curing environment-friendly water-based chromium-zinc-aluminum-free coating is prepared from the following components in parts by weight: 4 to 20 parts of flaky aluminum powder, 15 to 40 parts of flaky zinc powder, 0.5 to 4 parts of an emulsifying agent, 5 to 25 parts of a dispersing agent, 5 to 20 parts of a cosolvent, 5 to 20 parts of methyltrimethoxysilane (MTMS), 3 to 10 parts of polydopamine, 0.1 to 3 parts of a corrosion inhibitor, 0.01 to 1 part of a thickening agent, 10 to 50 parts of deionized water and 0.01 to 1 part of a de-foaming agent. Under the condition that the stability of the coating and the salt spray performance of the coating are not influenced, the coating also has the characteristics of low-temperature curing, energy conservation, environmental protection, relatively strong adhesive force and the like.

The invention relates to a surface treatment method of plastic parts. The surface treatment method comprises the following steps: 1) cleaning the surface of a workpiece; 2) spraying a first organic coating; 3) putting the workpiece into an infrared furnace to carry out leveling drying; 4) putting the workpiece into an ultraviolet curing oven to carry out curing by ultraviolet radiation; 5) hanging the workpiece to a PVD (Plating Vacuum Deposition) furnace, carrying out vacuum evaporation and plating aluminum films to obtain a semi-finished product of which the surface is silver and bright; 6) spraying a second organic coating to the semi-finished product; 7) putting the workpiece into the infrared furnace to carry out pre-drying leveling; 8) putting the workpiece into the ultraviolet curing oven to obtain a finished product. According to the invention, the technological process is simple, the energy consumption is low, zero discharge of wastewater is realized in the whole process, and the pollution to the surrounding environment is avoided; furthermore, the raw materials are low in price and easy to purchase, and no obvious differences occur between the appearance and performances of the coating and the appearance and performances of an electroplating chromium product, and the coating has good corrosion resistance, excellent salt fog performances and higher level in comparison with the traditional plating SC4, so as to be especially suitable for harsh environments of bathrooms and the like.

The invention discloses an AZ31B magnesium alloy golden conversion film treatment agent and an AZ31B magnesium alloy surface treatment method. The AZ31B magnesium alloy golden conversion film treatment agent comprises components with the following concentrations: 1-25 g / l of 98% of sulfuric acid, 1-25 g / l of 50% of manganese nitrate, 1-25 g / l of potassium permanganate, 0.1-1 g / l of metavanadate, 0.01-0.05 ml / l of dispersing agent, and the balance of water. After the AZ31B magnesium alloy golden conversion film treatment agent is applied to the surface treatment of AZ31B magnesium alloys, golden conversion films can be formed on the surfaces of the AZ31B magnesium alloys, so that the corrosion resistance of the AZ31B magnesium alloys can be improved. The formed golden conversion films havethe advantages of good adhesion, good salt mist performance and good film forming uniformity. In addition, the AZ31B magnesium alloy golden conversion film treatment agent contains no phosphorus and chromium, so that the problem of environmental pollution caused by common use of phosphorus and chromium in traditional alloy treatment agents is prevented, no environmental pollution is generated, andthe environmental protection is better.

The invention discloses an AZ31B magnesium alloy golden conversion film treatment agent and an AZ31B magnesium alloy surface treatment method. The AZ31B magnesium alloy golden conversion film treatment agent comprises components with the following concentrations: 1-25 g / l of 98% of sulfuric acid, 1-25 g / l of 50% of manganese nitrate, 1-25 g / l of potassium permanganate, 0.1-1 g / l of metavanadate, 0.01-0.05 ml / l of dispersing agent, and the balance of water. After the AZ31B magnesium alloy golden conversion film treatment agent is applied to the surface treatment of AZ31B magnesium alloys, golden conversion films can be formed on the surfaces of the AZ31B magnesium alloys, so that the corrosion resistance of the AZ31B magnesium alloys can be improved. The formed golden conversion films havethe advantages of good adhesion, good salt mist performance and good film forming uniformity. In addition, the AZ31B magnesium alloy golden conversion film treatment agent contains no phosphorus and chromium, so that the problem of environmental pollution caused by common use of phosphorus and chromium in traditional alloy treatment agents is prevented, no environmental pollution is generated, andthe environmental protection is better.

The invention provides water-based amino baking varnish for galvanized sheets and a preparation method thereof. The water-based amino baking varnish is prepared from the following raw materials in parts by weight: 20-35 parts of an aqueous polyester resin, 4 to 8 parts of a water-based amino resin; 5-10 parts of titanium dioxide, 1-3 parts of carbon black, 10-15 parts of barium sulfate, 3 to 5 parts of epoxy modified wollastonite; 0.1 to 0.3 part of bentonite, 0.5 to 1 part of fumed silica, 8 to 15 parts of an alcohol ether auxiliary agent, 1 to 2 parts of a dispersant, 0.5 to 0.8 part of an antifoaming agent, 0.3 to 0.5 part of a wetting agent, 0.3 to 0.5 part of a leveling agent, 1 to 1.5 parts of an amine neutralizer, 0.3 to 0.8 part of an anti-sagging auxiliary agent, 0.5 to 1 part ofan adhesion promoter and 30 to 50 parts of deionized water. The baking varnish has the advantage of high adhesive force on galvanized plates, and can effectively improve the corrosion resistance of the galvanized plates.

The invention discloses a neutral silane treating agent and a preparation method and application thereof, and relates to the technical field of metal corrosion prevention. Every 1000 parts of raw materials comprise the following components in parts by weight: 0.1-100 parts of a silane coupling agent, 0.1-30 parts of an oxidizing agent, 0.1-20 parts of a sealing agent, 0.1-20 parts of an adhesion promoter and the balance water. The neutral silane treating agent is excellent in corrosion resistance and good in salt spray performance. After the neutral silane treating agent is sprayed, the impact, grid drawing and bending properties of a workpiece are good. The neutral silane treating agent does not contain any heavy metals or harmful substances, does not contain acid-base components, and isenvironmentally friendly. A use method of the neutral silane treating agent is simple, heating is not needed during use, energy loss can be effectively reduced, operation is easy and convenient, and the treatment time can be shortened.

The invention relates to a surface treatment method of plastic parts. The surface treatment method comprises the following steps: 1) cleaning the surface of a workpiece; 2) spraying a first organic coating; 3) putting the workpiece into an infrared furnace to carry out leveling drying; 4) putting the workpiece into an ultraviolet curing oven to carry out curing by ultraviolet radiation; 5) hanging the workpiece to a PVD (Plating Vacuum Deposition) furnace, carrying out vacuum evaporation and plating aluminum films to obtain a semi-finished product of which the surface is silver and bright; 6) spraying a second organic coating to the semi-finished product; 7) putting the workpiece into the infrared furnace to carry out pre-drying leveling; 8) putting the workpiece into the ultraviolet curing oven to obtain a finished product. According to the invention, the technological process is simple, the energy consumption is low, zero discharge of wastewater is realized in the whole process, and the pollution to the surrounding environment is avoided; furthermore, the raw materials are low in price and easy to purchase, and no obvious differences occur between the appearance and performances of the coating and the appearance and performances of an electroplating chromium product, and the coating has good corrosion resistance, excellent salt fog performances and higher level in comparison with the traditional plating SC4, so as to be especially suitable for harsh environments of bathrooms and the like.

The invention provides a curing agent for a high-solid water-based coating. The curing agent comprises, by weight, 1 part of a compound represented by formula (I), 2-3 parts of trimethylolpropane triglycidyl ether, 2-3 parts of dimethylethanolamine and 1-2 parts of chitosan. The curing agent allows the water-based epoxy coating with ultralow VOC and high solid content to be obtained, and the coating has the advantages of simple formula and low cost, no addition of a wetting agent or a dispersing agent, direct dilution of an epoxy emulsion with water, excellent salt spray performance, easinessin being thickened, good anti-sagging performance, adjustment of the drying speed according to the construction environment, low VOC, convenience in construction, avoiding of gun blocking and pipelineblocking, and convenience in cleaning.

The invention relates to an imitation copper plating process on the surface of metal parts, which is characterized in that it comprises the following steps: 1) carrying out shot blasting treatment on the surface of metal parts to remove burrs and oil stains on the surface; 2) spraying a 3) Bake the primer-coated workpiece at 150-160°C for 15-25 minutes to obtain a workpiece with a primer dry film thickness of 20-30μm; 5) Bake the coated workpiece at 150-160° C. for 15-25 minutes to obtain a dry film thickness of 10-15 μm. The metal parts surface treatment method provided by the present invention has simple technological process, low energy consumption, no waste water discharge in the whole process, and avoids pollution to the surrounding environment; moreover, the price of raw materials is low, easy to purchase, and the appearance and performance of the coating are excellent The texture of electroplated copper products has good corrosion resistance and excellent salt spray performance.

The invention discloses a structural component of an electronic product and a preparation method thereof and the electronic product. The preparation method for the structural component of the electronic product comprises the steps that (1) a copper alloy raw material composite is die-cast and molded, and a preliminary product of the structural component of the electronic product is acquired; and with the total weight of the copper alloy raw material composite as the benchmark, the copper alloy raw material composite comprises, by weight, 30-50% of copper, 25-40% of manganese, 4-6% of aluminum,10-17% of nickel, 0.01-10% of silicon and 0.001-0.03% of beryllium; (2) the preliminary product of the structural component of the electronic product is soaked in a protective agent solution, whereinthe protective agent comprises benzotriazole and 2-mercaptobenzothiazole; and (3) the structural component of the electronic product is acquired through surface treatment. The structural component ofthe electronic product can pass a salt spray test and is suitable for manufacturing electronic products with high surface accuracy requirements.

The invention relates to a solvent-diluted antirust oil for bearings and a preparation method thereof, belonging to the technical field of antirust oil. The solvent-diluted antirust oil for bearings of the present invention is composed of the following components in weight percent: 25% to 35% of base oil, 9% to 14% of antirust agent, 1% to 3% of spar, and 2% to 5% of film forming agent. %, the balance is solvent oil; the base oil is any one of transformer oil and L-AN total loss system oil. The solvent-diluted antirust oil for bearings of the present invention has low viscosity and strong permeability, and can meet the requirements of spray oiling and rapid dip coating for bearings and parts; it has good film-forming effect, high oil film strength, and good moisture and salt spray resistance. , which can meet the anti-rust requirements of bearing manufacturers in coastal areas; has good anti-overlapping properties, and is suitable for the packaging process of stacking bearings and parts; the appearance, smell, and anti-rust performance are better than imported products, and the price is far lower than imported products. It has broad market application prospects.

The invention provides a chromium-free passivation composition for galvanized sheet and its production and use method, the composition includes water and the following components: aqueous dispersion of organic resin, water-soluble rare earth corrosion inhibitor, organic functional Hydrolyzed oligomers of trialkoxysilanes and water-soluble phosphorus-containing polymers. The chromium-free passivation composition of the present invention not only has excellent corrosion resistance and damp heat resistance, but also has excellent alkali resistance. The purpose of using the aluminum-zinc plate in a highly alkaline environment can be achieved. The invention also discloses the preparation and application method of the chrome-free surface treatment composition.

The invention discloses a silicane treating agent and a method for preparing the silicane treating agent. The silicane treating agent comprises the following components of, by weight, 30-65 parts of silicane coupling agents, 10-30 parts of hydrolytic stabilizing agents, 1-20 parts of surface wetting agents, 0.5-8 parts of sealing agents, 1-20 parts of adhesion promoting agents, and the balance water, wherein the total weight parts is 1000, and the silicane coupling agents are amino propyl trimethoxy silicane and / or amino propyl triethoxy silicane. The operation process of the silicane treating agent is simple, a good ceramization effect can be obtained, a metal part processed by the silicane treating agent is excellent in corrosion resistance, and the method can completely replace a traditional phosphate conversion and chromate passivated surface treatment technology.

The invention provides nano oxide inorganic coated phosphite powder. The nano oxide inorganic coated phosphite powder is characterized in that phosphite is used as the core, nano oxide is used as the shell to wrap the phosphite, and the mass of the nano oxide is 0.1-10% of the mass of the phosphite. The invention further discloses waterborne coating containing the nano oxide inorganic coated phosphite powder. The waterborne coating is prepared by emulsion base materials, water, the nano oxide inorganic coated phosphite powder, auxiliary pigment, filler, pH regulator and auxiliaries. The nano oxide inorganic coated phosphite powder has the advantages that the phosphite is modified through inorganic coating to increase the dispersing performance and application performance of the phosphite so as to allow the phosphite to be applicable to materials such as ink, plastics, rubber, papermaking and coating, the corrosion resistance, thermal stability, aging resistance, weather resistance and the like of the corresponding materials are increased, and the service life of the corresponding materials is prolonged.

The invention provides a calcium phosphate-based cement potting material, wherein nano-polyimide fibers are evenly distributed in the calcium-phosphate-based cement, wherein the mass fraction of the nano-polyimide fibers is 1%-10%. The use of calcium phosphate-based cement as the basic packaging material reduces costs. The cost of cement is lower than the cost of any existing system; and high temperature resistance, the above potting material system can withstand high temperature of 350 °C; and the process of cement hydration is improved by adding nano polyimide fibers, Reduced porosity. After the final setting of the cement, the possibility of crack formation is reduced, and the ability of the cement to resist water and salt spray is improved.

The invention provides a multifunctional vacuum oil purifier. The vacuum oil purifier comprises an oil inlet pump, an oil inlet valve, a rough filter, a heater, a vacuum tank, an oil outlet pump, a fine filter, an oil outlet valve, a condenser, a waste liquor tank, a vacuum pump and a check valve, wherein one end of the oil inlet valve is connected with the oil inlet pump through a pipeline, the other end is connected with the rough filter through a pipeline, the rough filter is connected with the heater through a pipeline, the heater is connected with the vacuum tank through a pipeline, the vacuum tank is connected with the oil outlet pump through a pipeline, the oil outlet pump is connected with the fine filter through a pipeline, the oil outlet pump is connected with the oil outlet valve through a pipeline, the vacuum tank is connected with the condenser through a pipeline, the lower end of the condenser is connected with the waste liquor tank through a pipeline, the condenser is connected with the vacuum pump through a pipeline, the check valve is arranged between the condenser and the vacuum pump, an atomizer is arranged in the vacuum tank, a heating device is arranged in the heater, and a fine filter tank is arranged in the fine filter. The vacuum oil purifier is high in working efficiency, the purity of purified lubricating oil is high, and the cooling effect of the condenser is good.

The invention relates to a bright treatment liquid for a magnesium alloy die casting. The treatment liquid is simple in configuration, easily available in raw material, stable in quality and low in pollution, and is suitable for bright treatment of magnesium alloy die castings produced on a large scale. The bright treatment liquid for the magnesium alloy die casting comprises the following components: hydrogen peroxide with a concentration of 10-15 ml / L, triethylene tetramine with a concentration of 18-23 ml / L, hementerin with a concentration of 25-35 ml / L, OP-10 with a concentration of 0.3-0.7 ml / L, and the balance of water. The hementerin is sodium carboxymethyl cellulose. The working temperature of the treatment liquid is 40-50 DEG C, and the treatment time is 15-30 seconds.

The invention provides an oil-water separation device for a vacuum oil purifier. The oil-water separation device comprises an oil feed pump, an oil feed valve, a rough filter, a heater, a vacuum tank, an oil discharge pump, a fine filter and an oil discharge valve, wherein one end of the oil feed valve is connected with the oil feed pump through a pipeline, the other end of the oil feed valve is connected with the rough filter through a pipeline, the rough filter is connected with the heater through a pipeline, the heater is connected with the vacuum tank through a pipeline, the vacuum tank is connected with the oil discharge pump through a pipeline, the oil discharge pump is connected with the fine filter through a pipeline and connected with the oil discharge valve through a pipeline, an atomizer is arranged in the vacuum tank, a heating device is arranged in the heater, and a fine filter tank body is arranged in the fine filter. The heater in the oil-water separation device has a good heating effect, and the purity of the purified lubricating oil is high through multistage filtration.