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1703 results about "Zinc phosphate" patented technology

Zinc phosphate is an Inorganic compound with the formula Zn₃(PO₄)₂)(H₂O)₄. This white powder is widely used as a corrosion resistant coating on metal surfaces either as part of an electroplating process or applied as a primer pigment (see also red lead). It has largely displaced toxic materials based on lead or chromium, and by 2006 it had become the most commonly used corrosion inhibitor. Zinc phosphate coats better on a crystalline structure than bare metal, so a seeding agent is often used as a pre-treatment. One common agent is sodium pyrophosphate.

Drag-reducing abrasion-resisting solventless coating for pipeline as well as preparation method and application thereof

The invention relates to a drag-reducing abrasion-resisting solventless coating for a pipeline as well as a preparation method and application thereof. The drag-reducing abrasion-resisting solventless coating contains an A component and a B component, wherein the mass percentage of raw materials is as follows: the A component includes the following materials in percentage by weight: 30%-40% of epoxy resin, 5%-10% of toughening resin, 4%-8% of active diluents, 4%-8% of zinc phosphate, 0.2%-0.5% of levelling agents, 0.2%-0.5% of defoaming agents, 0.4%-0.8% of dispersing agents, 0.2%-1.0% of anti-settling thickening agents, 8%-20% of ferric oxide red powder, 5%-15% of aluminium triphosphate and 5%-15% of white pottery magnetic powder; the B component includes the following materials in percentage by weight: 5%-20% of modified amine and 2%-10% of modified polyamide; and the A component and the B component are matched for use according to the mass ratio of 3-5:1. The drag-reducing abrasion-resisting solventless coating is prepared through material blending, dispersion, grinding, filtration and packaging and can be applied in delivery pipelines of oil and natural gases. The drag-reducing abrasion-resisting solventless coating does not contain volatile solvents and has the advantages of good adhesive force, flexibility, salt spray resistance and solvent resistant property, smooth coating surface, good drag-reducing abrasion-resisting effect, convenient construction, resource saving and good popularization and application prospect.
Owner:SHANGHAI HILONG SHINE NEW MATERIAL

Glaze for fast-fired crystal glaze ceramic tile, and preparation method and applications of ceramic tile

ActiveCN104829268AReduce granularity requirementsSimple manufacturing processManufacturing technologyBrick
The invention provides a glaze for fast-fired crystal glaze ceramic tile and a preparation method and applications of ceramic tile. The glaze comprises basic crystal glaze and a color developing agent, wherein the basic crystal glaze comprises the following raw materials: zinc oxide, titanium dioxide, quartz, cryolite, zinc phosphate, kaolin, and lead frit. A proper amount of zinc phosphate is introduced into the glaze to avoid the raw material frit treatment, which is carried out to ensure the residual amount of nucleating agent, the requirements on the glaze granularity are reduced, the manufacture technologies of crystal glaze and ceramic tiles are simplified, and the technical difficulties that the crystal glaze sintering technology is complicated, the crystal patterns are difficult to control, and the production cost is high are solved. Moreover, the addition amount of quartz and lead frit is precisely controlled to obtain crystal glaze art ceramic tiles which have the advantages of good crystallization effect, strong three-dimensional effect, and good artistic effect. The provided preparation method has the advantages of simpleness, lower sintering temperature, shorter period, and suitability for massive industrial production.
Owner:DONGGUAN CITY WONDERFUL CERAMICS IND PARK +1

Temperature-resistance thermal-insulation heavy-duty anticorrosion coating

The invention relates to the technical field of coating, in particular to temperature-resistance thermal-insulation heavy-duty anticorrosion coating, which comprises the following raw material components in percentage by mass: 10 to 40 percent of epoxy modified organosilicon resin, 5 to 20 percent of novolac epoxy resin, 8 to 20 percent of modified amine curing agent, 2 to 10 percent of flexibilizer, 0.1 to 1 percent of modified polysiloxane flatting agent, 0.01 to 0.1 percent of polysiloxane defoaming agent, 0.1 to 1 percent of polyacrylate dispersant, 4 to 11 percent of zinc phosphate, 4 to 10 percent of barite powder, 3 to 8 percent of titanium white, 0.01 to 0.1 percent of carbon black, 15 to 40 percent of potassium titanate whiskers and 2 to 20 percent of nano porous material. The organosilicon-modified epoxy resin adopted by the invention combines the high performance of epoxy resin and organosilicon resin, and the organosilicon-modified epoxy resin and the novolac epoxy resin compensate for respective defects. The coating has high anticorrosion performance, high high-temperature-resistance performance and high insulating performance, and the adhesion force, medium-resistance performance and thermal-insulation and heat-preservation performance of the coating are improved considerably.
Owner:SHANGHAI HILONG SHINE NEW MATERIAL

Epoxy anti-corrosive paint used for underwater concrete

The invention discloses epoxy anti-corrosive paint used for underwater concrete. Liquid epoxy resin DER351 is used as a base material; polysulfide rubber is used as a flexibilizer; pentanediol diglycidyl ether 6286 is used as a diluent; zinc phosphate and iron oxide red are used as active anti-corrosive pigment; spherical silicon carbide, ceramic microspheres, mica iron oxide, sericite and precipitate vitriolic barium are used as fillings; cashew shell oil, modified phenolic aldehyde amine and modified aliphatic amine are used as curing agents; and a silane coupling agent 1121 is used as an adhesion promoter. With the cooperation of functional promoters, the raw materials are made into solvent-free double-component epoxy anti-corrosive paint used for underwater concrete through conventional preparation technique equipment. The epoxy anti-corrosive paint used for underwater concrete is highly environmental-friendly and can be directly painted or smeared on damp interfaces of underwater concrete and rapidly solidified into films; the coating has great adhesion and strong abrasion resistance and corrosion prevention. The epoxy anti-corrosive paint used for underwater concrete is widely applied to the corrosion prevention of various underwater concrete facilities.
Owner:北京国泰瑞华精藻硅特种材料有限公司

Waterborne epoxy anti-corrosive coating and preparation method thereof

The invention discloses a waterborne epoxy anti-corrosive coating and a preparation method thereof. The coating comprises a component A and component B, wherein the component A comprises high titanium ash, feldspar powder, silicon carbide, ceramic fine powder, a nanometer silicon dioxide solution, zinc phosphate, water and the like; and the component B is a waterborne epoxy curing agent. The preparation method comprises the following steps of: adding a waterborne epoxy resin and a waterborne dispersing agent into a reaction kettle, starting a dispersing machine, adding the high titanium ash, feldspar powder, silicon carbide, ceramic powder, nanometer silicon dioxide solution, zinc phosphate and water in sequence, and dispersing; treating with a sand grinding machine; and adding auxiliary materials such as a waterborne antifoaming agent, a waterborne flatting agent and the like, and stirring to obtain a bottom and top-combined thick film waterborne epoxy anti-corrosive coating. The coating provided by the invention is corrosion resistant and wear resistant after one-time molding, the coating requirement of the inner wall of a steel structure bridge steel box girder is met, and the coating technical requirements of a plurality of severely-corrosive indoor steel structure platforms are met.
Owner:TIANCHANG JULONG TRAVEL PAINT

Waterborne antirust paint and preparation method thereof

The invention discloses waterborne antirust paint and a preparation method thereof. The waterborne antirust paint is prepared from, by mass, 10-25 parts of waterborne acrylic acid modified epoxy ester, 0.6-1.2 parts of neutralizer, 20-30 parts of deionized water, 0.5-1.5 parts of dispersing agents, 0.2-0.5 part of defoaming agent, 14-18 parts of iron oxide red, 2-4 parts of mica powder, 6-10 parts of modified zinc phosphate, 10-14 parts of precipitated barium sulphate, 1-2 parts of propylene glycol, 10-15 parts of styrene-acrylic emulsion, 0.5-1.0 part of coalescing agent, 0.5-1.0 part of waterborne flush rust prevention agent, 0.5-1.5 parts of thickening agents and 0.2-0.5 part of mildew prevention agent. The waterborne antirust paint is high in film hardness, good in adhesive force and excellent in corrosion-resistant performance and mechanical performance, dryness and initial water resistance of paint films are remarkably improved due to the addition of styrene-acrylic emulsion, and the flush rust restraining performance of paint films is improved due to the addition of the waterborne flush rust prevention agent. Water serves as the diluent for the waterborne antirust paint, VOC emission in production and construction projects is greatly reduced, and the waterborne antirust paint is safe, environmentally friendly and capable of being widely used for paint coating on the aspects of steel structures, pipelines, automobile parts and the like.
Owner:西北永新涂料有限公司

Production method of cold-drawn precision seamless steel pipes

The invention relates to a production method of cold-drawn precision seamless steel pipes. The production method comprises the steps of: heating: pipe blanks are heated in an annular furnace; perforation: the heat pipe blanks are perforated by a perforation machine; annealing: the pipe blanks are annealed; cold rolling: the annealed pipe blanks are leaded into a pipe rolling machine for cold rolling to obtain rolled pipes; stress relieving: the rolled pipes are leaded into a heating furnace for heating to obtain annealed pipe blanks; acid washing treatment: the acid washing is performed for the annealed pipe blanks to remove scales on the surfaces; phosphating treatment: zinc phosphate chemical generation films are formed on the surfaces of the pipe blanks; saponification treatment: such lubrication films as metallic soaps are formed on the films; cold drawing: the cold drawing is performed for the pipe blanks to be cold drawn to obtain cold-drawn pipes; normalization air-cooling treatment; first straightening treatment; induction furnace quenching treatment; box furnace tempering treatment; honing; thermal straightening treatment; and obtaining of the cold-drawn precision seamless steel pipes. The production method obtains the cold-drawn precision seamless steel pipes with high yield strength, high tensile strength, precise sizes and smooth surfaces.
Owner:WUXI DAJIN HIGH PRECISION COLD DRAWN STEEL TUBE
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