The invention discloses a multifunctional metal surface treatment solution which comprises the following components in percentage by mass: 30-60 percent of phosphoric acid, 5-10 percent of accelerator, 15-20 percent of derusting transforming agent, 3-5 percent of corrosion inhibitor, 1-2 percent of degreaser, 0.5-3 percent of passivator and 5-30 percent of water, wherein the accelerator is tartaric acid or/or citric acid, the derusting transforming agent is zinc phosphate or/and zinc nitrate or/and zinc oxide; the corrosion inhibitor is aluminium hydroxide or/and sodium nitrite, the degreaser is sodium alkylbenzenesulfonate or/and sodium fluoride; and the passivator is bichromate or/and ammonium molybdate or/and magnesium chloride. The multifunctional metal surface treatment solution has the advantages of scientific and reasonable formula, capability of removing rust, preventing rust and removing grease by being directly sprayed on the surface of metal, and also capability of replacing an anti-corrosive primer.

Multifunctional metal surface treatment solution

The invention relates to the technical field of passivation agents and in particular relates to a copper chromate-free passivation agent and an application method thereof. The copper chromate-free passivation agent comprises the following raw materials based on each liter of water: 0-15g of benzotriazole, 0-180g of organic phosphonic acid, 0-30g of organic carboxylic acid, 5-20g of an imidazoline inhibitor, 0-20g of phytic acid, 0-15g of absolute ethanol, 0-15g of cetyl trimethyl ammonium bromide and 1L of water, wherein the mass ratio of the benzotriazole to the absolute ethanol is 1 to 1; the organic phosphonic acid is glycine dimethyl phosphonate, hydroxy hexyl diphosphonic acid, 2-phosphate-1,2,4-tricarboxylic acid butane or hydroxy ethylidene diphosphonic acid; organic hydroxy acid is tartaric acid, citric acid or salicylic acid; the imidazoline inhibitor is oleate imidazoline, rosinyl imidazoline or thiourea imidazoline. The copper chromate-free passivation agent has the advantages of non-toxicity, no chromate, environmental friendliness and excellent salt fog resistance.

Copper chromate-free passivation agent and application method thereof

Low-temperature single-component zinc series phosphating solution and preparation method thereof

The invention relates to environment-friendly derusting conditioning fluid for metal equipment of a flue-curing barn. By the environment-friendly derusting conditioning fluid, the technical problem of poor derusting effect or high cost and the like in the conventional deruster is solved. According to the key point of the technical scheme, the environment-friendly derusting conditioning fluid is prepared by mixing and stirring the following raw materials in part by weight: 50 to 70 parts of deionized water, 20 to 30 parts of orthophosphoric acid, 1 to 3 parts of zinc hydroxide, 2 to 4 parts of manganous dihydrogen phosphate, 0.5 to 1.5 parts of sodium tripolyphosphate, 1 to 3 parts of sulfosalicylic acid, 1 to 3 parts of sodium nitrite, 2 to 4 parts of boric acid, 0.5 to 1.5 parts of sodium molybdate and 0.5 to 1.5 parts of polyvinyl alcohol. By the environment-friendly derusting conditioning fluid, rust melting and rust proofing are completed at one time, so that the labor production efficiency is improved greatly, and the cost of conditioning rust is reduced. The environment-friendly derusting conditioning fluid can be widely applied to a surface treatment process for steel devices.

Environment-friendly derusting conditioning fluid for metal equipment of flue-curing barn

The invention relates to a steel surface treating agent, particularly a washing-free normal-temperature phosphating solution after steel workpiece phosphating, which is prepared by mixing the following raw materials in percentage by mass: 12-25% of 85% phosphoric acid, 2-6% of zinc oxide, 1-2% of sodium molybdate dihydrate, 0.5-5.0% of lanthanum nitrate hexahydrate, 0-6% of manganous nitrate tetrahydrate, 0.1-0.8% of tartaric acid, 0.1-0.2% of alkylphenol ether sulfosuccinate sodium salt, 0.1-0.2% of sodium benzoate, 0.1-0.3% of 70% phytic acid, 0-0.5% of 30% oxydol and the balance of water. The preparation method comprises the following steps: adding zinc oxide into 2 times by mass of water, stirring into paste, adding 85% phosphoric acid, and stirring to a uniform transparent state; while stirring, sequentially adding phytic acid and tartaric acid which is dissolved in water, lanthanum nitrate hexahydrate and manganous nitrate tetrahydrate which are respectively dissolved in water, sodium molybdate dihydrate which is dissolved in water, the other raw materials except sodium benzoate, and sodium benzoate dissolved in hot water; regulating the pH value of the solution to 2.0; and adding water to the required amount.

Washing-free normal-temperature phosphating solution after steel workpiece phosphating and preparation method thereof

The invention relates to a site rust-removing and corrosion-preventing method for continuously carrying out the electric processing of a steel piece of an electric power system, which has good rust removing and corrosion preventing effect and comprises the steps of: a removing the dust and the rust on the corrosion part of the steel piece on site; b coating the rust corrosion part at least for once by utilizing the surface treating fluid integrating four functions of removing oil, removing rust, phosphatizing and passivizing after the step a; and c coating for at least once by utilizing corrosion-preventing paint after the coated surface treating fluid is completely dried, wherein the surface treating fluid is a water solution prepared according to the following components and the contents thereof; and each liter of the surface treating fluid contains 50 to 350ml of phosphoric acid (while the condensation is 85%), 5 to 25g of Zinc, 02 to 75g of phosphatizing reaction accelerant, 05 to 10g of oxidant, 10 to 40g of polyhydroxyl organic acid complexing agent, 1 to 5g of surfactant and the balance of water The method is suitable for the rust removing and the corrosion preventing of outdoor electric power equipment

Site rust-removing and corrosion-preventing method for steel piece of electric power system

The invention provides a processing method for ion exchange property powder, which ensures that the ion exchange powder has a suitable ion exchange form. The method comprises the following steps: dipping the ion exchange powder into an aqueous alkali; after the dipping is finished, filtering out the aqueous alkali and drying and crushing for use. The operation is very convenient. The zinc-rich paint filling using the powder comprises the following components in parts by weight of 80-99 parts of zinc powder, 1-10 parts of ion exchange property powder and 0-10 parts of pigment. The ion exchange property powder is added into the zinc power and prepared into a zinc-rich paint together with a filming main agent; the zinc-rich paint is coated on the steel surface; and after solidification filming, an electrified bridge is built between the zinc powder and zinc powder as well as between the zinc powder and steel; and therefore, although the zinc powder in contact with the steel base body is all replaced by corrosion products, the zinc powder at the other parts can still continually provide electrochemical protection effect through the electrified bridge built by the ion exchange property powder, thus improving the corrosion resistance of a coating.

Processing method for ion exchange property powder and zinc-rich paint using powder

The utility model relates to a controlling means of ability automatically regulated photovoltaic cell board angle, including the transmission system that solar cell panel and control solar cell panel go up and down, the last angle induction system who is used for calculating angle between solar cell panel and the ground that is connected with of solar cell panel, angle induction system links to each other with transmission system, the utility model discloses an advantage: calculate angle between solar cell panel and the ground through angle induction system to through the lift control of transmission system realization to solar cell panel, thereby guaranteed that the solar cell panel moment and sunshine are in vertical position, thereby it is the highest to make solar cell panel's luminous efficacy reach, excellent in use effect.

Controlling means of ability automatically regulated photovoltaic cell board angle

The utility model discloses a transformer vibration isolation device. The transformer vibration isolation device includes a metal tank; the upper end of the metal tank is open; five or more springs are vertically distributed in an inner cavity of the metal tank; a partition plate is arranged above the springs, a groove is formed in the top surface of the partition plate, a rubber block is placed in the groove, a circular truncated cone is arranged on the top of the rubber block, the upper portion of the rubber block is covered with a cover plate, the cover plate is provided with a conical concave surface, a circular hole allowing the circular truncated cone to pass through is formed in the bottom of the conical concave surface, and the side wall of the cover plate is connected with the side wall of the metal tank through fasteners. The transformer vibration isolation device has the multi-point non-fixed type vibration isolation function and can effectively lower the noise of a transformer.

Transformer vibration isolation device

The utility model discloses a line wire feeder is got to net twine, including the mutual articulated of two lamellas pincers piece, pincers piece front end is equipped with the binding clip that presss from both sides the quartzy head of tight net twine, the other end of pincers piece is equipped with the handle, the articulated department of two lamellas pincers piece is equipped with articulated piece, but it send the pole in to be equipped with reciprocating motion in the articulated piece, the interior front end activity of sending the pole is between two binding clips, the interior front end that send the pole is equipped with the little wire casing of separate mesh on -line portion heart yearn, the instrument of can borroing carries out the plug operation to the quartzy head of net twine, the problem of can't be with the quartzy head of the direct plug of hand in narrow and small position department is solved, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability.

Lu Xiang

Papers

Site rust-removing and corrosion-preventing method for steel piece of electric power system

Processing method for ion exchange property powder and zinc-rich paint using powder

Controlling means of ability automatically regulated photovoltaic cell board angle

Transformer vibration isolation device

Line wire feeder is got to net twine