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

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 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 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 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.