120results about How to "Free from rust" patented technology

A fire-proof organic blocking material for blocking the through hole and gap in fire accident is prepared from diethyl silica oil, light and / or heavy calcium carbonate, expanded pearlite (and / or vermiculite), filler chosen from diatomite, talc powder and bentone, and fire retarder chosen from aluminium hydroxide, hydrated zinc borate and magnesium hydroxide. Its advantages are high effect and durable plasticity and toughness.

The invention relates to an easy-construction two-component packaging aqueous epoxy zinc-rich coating. The coating selects a low-molecular-weight epoxy resin, an active diluent, a high-efficiency antifoaming agent, a wetting dispersant, ultrafine zinc powder, a self-emulsifying aqueous epoxy hardener, a cosolvent and water as raw materials. The aqueous epoxy zinc-rich coating has the advantages of good corrosion resistance, realization of resisting salt spray for 1500h, no foaming, rust or shredding of the coat of the coating, according with requirements of HG / T3668-2009 Zinc Rich Primer, good application performance, convenient onsite use, realization of the thickness of the once-formed coat of above 80mum, 1h surface drying and 16h hard drying at 25DEG C, and satisfying of the steel structure anticorrosion construction requirement. The aqueous epoxy zinc-rich coating can be applied to the anticorrosion of steel structures comprising ships, bridges, sea engineering apparatuses and the like, and can also be applied to the steel plate pretreatment streamline as a workshop primer.

The invention relates to a production method of a bearing, in particular to a galvanized method of the bearing. In accordance with the technical scheme provided by the invention, the method comprises the following steps: (1) degreasing: using chemical degreaser or water-based metal cleaning agent to remove oil contamination on the surface of workpiece; (2) pickling: carrying out pickling on degreased workpiece in pickling solution; (3) dipping plating assistant agent: placing the workpiece after pickling into plating assistant agent to strengthen the binding force of a plating layer and a substrate; (4) drying and preheating: in order to prevent the workpiece from deforming due to sharp temperature rising when hot galvanizing in the next step is carried out on the workpiece, remove residual moisture and prevent detonation of zinc from causing burst zinc liquid, preheating the workpiece in the oven; (5) hot galvanizing: placing the workpiece after drying and preheating into the zinc liquid to galvanize; and (6) dehydrogenating: placing the workpiece after hot galvanizing into an oven of 190 to 210 DEG C to keep warm for 3.5 to 4.5h to remove hydrogen in the workpiece, thereby preventing the workpiece from brittlely fracturing. The invention can prevent the bearing from rusting and prolong the service life of the bearing.

The invention relates to an environment friendly wet-leveling liquid composite comprising the following components in percentage: (1) 5% to 30% of organic acid; (2) 5% to 40% of organic amine; (3) 1% to 15% of corrosion inhibitor; (4) 1% to 15% of film former; (5) 1% to 15% of film forming promoter; (6) 1% to 10% of lubricant; (7) 0.1% to 1.5% of surfactant; and (8) 10% to 40% of water. By using the formulation of organic acid and organic amine as rust inhibitor, the invention, belonging to composite wet-leveling liquid, is superior in the performance of cleaning and rust prevention; and by adding a proper amount of lubricant, the service life of rollers can be prolonged, and the rust-proof life is more than 15 days. Accordingly, the invention is suitable for medium-size and small-size rolling plants incapable of performing the next procedure immediately after the leveling procedure.

The invention provides a comprehensive environment simulation device. The comprehensive environment simulation device comprises a temperature and humidity applying system, a temperature and humidity control system, a loudspeaker, a noise control system, a comprehensive environment display and control system, a vacuum pump, a low air pressure control system, a hydraulic vibration table, a vibration control system, a protection system and a box body. The comprehensive environment simulation device can coordinate and control five environment factors consisting of the temperature, the humidity, the height, the vibration and the noise at the same time to form comprehensive environment simulation, can truly simulate the air-based equipment war preparation on-duty comprehensive environment, and improves the authenticity and effectiveness of the air-based equipment environment adaptability test verification.

The invention relates to the technical field of chemical materials, in particular to non-toxic long-acting solvent-free drinking water cabin paint and a preparation method thereof. The non-toxic long-acting solvent-free drinking water cabin paint comprises a component A and a component B, wherein the component A comprises epoxy resin, dimer acid modified epoxy resin, an amino silane coupling agent, a dispersing agent, a defoaming agent, non-toxic filler, glass flakes, a nanometer double-layer material and a thixotropic agent; the component B comprises an amine curing agent and an epoxy silanecoupling agent. Compared with the prior art, the non-toxic long-acting solvent-free drinking water cabin paint prepared through the preparation method is lower in VOC, and the VOC is lower than 50 g / L; the mixing viscosity is moderate, the salt fog resistance is excellent, and the salt fog resistance reaches 5000 h when the thickness of a dry film is 250 micron. Besides, the adhesive force is notlower than 11 MPa; through a sanitary performance test, long-acting anti-corrosion protection requirements of a drinking water cabin, drinking water conveying and distributing water pipelines and theinner wall of equipment are met.

The composition of said antistatic fire-resisting polyethylene material is formed from (by weight portion) 100 portions of high-density polyethylene, 5-24 portions of composite fire-resisting agent and 3-7 portions of composite antistatic agent. It possesses excellent antistatic property, fire-resisting property, and toughness and high strength, corrosion resistance and other chemical property and mechanical property, and can be made into pipe material with extensive application range instead of steel pipe in various engineerings.

The invention relates to a precast slab beam, in particular to a manufacturing method of the precast slab beam. The manufacturing method of the precast slab beam comprises the following steps of S1, binding a reinforcement cage on a horizontal precast table seat; S2, bracing a template: bracing side templates and end templates on two sides and the end parts of the reinforcement cage; S3, casting:casting concrete in the template; S4, removing the template; and S5, maintaining. In the step S1, the precast table seat is fixedly provided with support plates on the outer sides of two ends of the reinforcement cage and is further intervally provided with auxiliary support plates on the surface under the reinforcement cage; the part, located between the support plates, of the reinforcement cageis in lap-joint on the auxiliary support plates; the reinforcement cage is provided with multiple horizontally supporting reinforcing steel bars side by side along the length direction of the slab beam and the supporting reinforcing steel bars are bound on the middle lower part of the reinforcement cage; and two ends of the supporting reinforcing steel bars are in lap-joint on the upper surfaces of the support plates. According to the manufacturing method of the precast slab beam provided by the invention, the reinforcing steel bars on a lower plate of the slab beam are casted in the middle ofthe lower plate of the slab beam, so that the uniformity of the reinforcement cage in concrete is improved, and the integrality of the precast slab beam is improved.

The invention provides a beam bridge reinforcing structure and reinforcing method. The beam bridge reinforcing structure comprises an arched steel pipe component, I-beams and steel inclined struts. The two ends of the arched steel pipe component are fixed to two adjacent piers of a bridge body. A middle section of the arched steel pipe component is fixedly connected with the steel inclined struts. The steel inclined struts are fixedly connected with the I-beams. The bottom of a bridge deck of a beam bridge is continuously supported through upper flanges of the I-beams. By the adoption of the reinforcing structure, stress of an original beam bridge is optimized, the bending moment of the beam bridge is remarkably reduced, the situation that the beam bridge further cracks under the overloading effect is effectively prevented, part of cracks can be partially closed, stressed reinforcing steel bars in the beam bridge are protected against exposure and corrosion, the load burdens and operation risks of the beam bridge are remarkably reduced, the structure anti-bending and anti-shearing bearing capacity and the durability performance of the beam bridge are improved, and the service life of the bridge is effectively prolonged.

The invention belongs to the technical field of vegetable washing sinks, particularly relates to a domestic anti-blocking vegetable washing sink, and aims to solve the problem that the funnel and pipeline of a domestic vegetable washing sink are prone to blocking, and the use of the sink is affected. According to the technical scheme, the domestic anti-blocking vegetable washing sink comprises a vegetable washing sink body and pipe connection flange plates and is characterized in that a faucet fixing seat is fixed to the outer wall of one side of the vegetable washing sink body, a faucet is connected to the top outer wall of the faucet fixing seat in an inserted manner, ports are formed in two sides of the bottom outer wall of the vegetable washing sink body, a first funnel storage pipe and a second funnel storage pipe are respectively fixed to the inner walls of the two ports, and a first linkage pipe and a second linkage pipe are respectively fixed to the bottom outer walls of the first funnel storage pipe and the second funnel storage pipe through the pipe connection flange plates. The vegetable washing sink has the advantages that fan blades are driven to rotate through water flow so as to drive an anti-blocking seat to rotate to drive an anti-blocking rack to stir sundries such as vegetable leaves, the funnel is prevented from being blocked by the static sundries, an external power supply is not needed, manual sundry fishing is not needed, and clean and efficient sewage discharge is achieved.

The invention relates to a lubricating oil composite, in particular to a hydrodynamic drive lubricating oil composite for engineering plants, belonging to the technical field of lubricating oil. The lubricating oil composite mainly contains the following components in percentage by weight: mixture of 93-95% of hydrotreating base oil and 2.0-2.4% of polymethyl methacrylate of which the number-average molecular weight is 50000-60000, 0.5-1.0% of phosphite ester, 0.5-1.0% of boronizing thiophosphate phosphorothioate amine salt, 0.5-1.0% of sulfurized isobutene, 0.1-0.3% of nitrogen-contained thiophosphoric acid molybdenum, 0.1-0.3% of amine-type antioxidant, 0.1-0.3%of phenol type antioxidant and 0.1-0.3% of benzotriazole antiseptic antirusting agent. The lubricating oil composite has the beneficial effects of comprehensive performance and wide application range, energy consumption is not reduced while quickly and frequently shifting, less friction heat is generated, and the durability of a clutch sheet is improved. The labor intensity of workers and mechanical maintenance cost are lowered while improving work efficiency, and the lubricating oil composite also has good market prospect.

The invention relates to a corrosion and deposit inhibiting combination for intermediate water sewage system, a fabrication and application method to be concerned, the corrosion and deposit inhibiting combination comprises an organic phosphonate, carboxylic acid multipolymer, zince sulfate and water; the corrosion and deposite inhibiting combination of the invention is fabricated by carboxylic acid multipolymer and other compounds, which can effectively prevent the formation of calcium carbonate in cool circulating water, and also has a favorable performance on preventing the formation of calcium phosphate scale, as the result shows, the corrosion and deposit inhibiting combination has an outstanding corrosion inhibiting effect, the corrosion velocity of carbon steel is only 0.05mm / a which is far smaller than 0.125mm / a equivalent to the national standard, the invention is applicable to a wide arrange of water quality fluctuation, and can provide with an outstanding corrosion and deposit inhibiting performance, the medicament consumption is small, only 40 to 60mg / l of the corrosion and deposit inhibiting combination in the invention can be used for capability of meeting the requirement on corrosion and deposit inhibiting, an industrial water consumption and an economic expense are tremendously saved, the economic benefit and the social benefit are favorable.

The invention discloses a water-based cutting fluid for molybdenum alloy processing. The water-based cutting fluid is composed of base oil, a rust inhibitor, a synthetic lubricant, a surfactant, a novel surfactant, a metal corrosion inhibitor and water. The water-based cutting fluid for molybdenum alloy processing has favorable molybdenum corrosion resistance and excellent pH value maintenance property for the use solution.

The invention discloses a portable bearing rotating precision comprehensive detection platform which can quickly identify bearing key indexes. The portable bearing rotating precision comprehensive detection platform comprises bearing clamping diameter-adjustable structure units which are arranged to be in longitudinal symmetry, a dynamic gap removing unit, a gap removing component and a portable measuring clamping accessory. Each bearing clamping diameter-adjustable structure unit comprises a disk, three radial adjusting rails with the same value, a bearing supporting plate and a limiting rod unit. The portable bearing rotating precision comprehensive detection platform can achieve three-point centering type clamping, enables the gap between the inner diameter part and the outer diameter part to be removed, and is high in testing precision, accurate, fast, low in requirement for a testing environment and convenient to popularize. The portable bearing rotating precision comprehensive detection platform is not rusted and free of maintaining, small in size and easy to carry, and the weight of the platform is about 1kg. Further, the radial adjusting rails and the limiting rod units adjust in a sliding mode, and quick measuring of various specifications of bearing rotating precision indexes to be measured in the rotating gap-removing state can be achieved. The portable bearing rotating precision comprehensive detection platform is small in manufacturing cost, low in operation difficulty, and capable of greatly shortening the detection period, lowering cost, and meeting the regular demands for timeliness and small cost of enterprises.

The invention relates to the technical field of coating preparation and in particular relates to a preparation method of self-repairing fluorocarbon coating for ships. The self-repairing fluorocarboncoating for the ships is prepared by taking a self-made oil-soluble capsule core and a sodium dodecyl benzene sulfonate solution as raw materials, emulsifying and dispersing to obtain oil-in-water emulsion, doping a self-made urea formaldehyde pre-polymer into the oil-in-water emulsion, treating to obtain a microcapsule, mixing and stirring a self-made co-solvent, PVDF (Polyvinylidene Fluoride) fluorocarbon resin and titanium white powder to obtain a pre-dispersed raw material and finally, stirring the pre-dispersed material, a self-made carbon nanotube dispersion solution and the microcapsuleat a high speed, and stirring and curing at a low speed; tourmaline powder is adsorbed on a rough surface of the microcapsule and can be used for preventing marine organisms, such as shells and alga,from being attached on ship bodies to grow; meanwhile, the salt spray resistance performance of the fluorocarbon coating is improved; carbon nanotubes are doped so that the siphon action generated bycracks can be enhanced; the capsule core in the microcapsule is slowly released so that the cracks of a coating layer are completely repaired at a relatively rapid speed and the self-repairing fluorocarbon coating has a wide application prospect.

The invention discloses an inner-barrel back cover for dry washers and a manufacturing method of the inner-barrel back cover and belongs to the technical field of inner-barrel back cover machining. The inner-barrel back cover is manufactured by steps of material cutting, blanking, stretching, punching, flanging, riveting, packaging and the like. Quality of the product is strictly controlled, so that machining qualification rate of the inner-barrel back covers is high, and surface quality is good.

The invention provides a rare earth compound epoxy zinc-rich paint for preventing microorganism attachment and a preparation method thereof. The rare earth compound epoxy zinc-rich paint consists of a component A, a component B and rare earth chloride, wherein the component A comprises the following components in parts by weight: 20-32 parts of bisphenol A type epoxy resin, 10-35 parts of flaky zinc powder, 3-5 parts of auxiliary filler, 15-25 parts of first solvent and 1-3 parts of assistant; the component B comprises the following components in parts by weight: 10-15 parts of neutral polyamide curing agent and 10-20 parts of second solvent; and the weight percentage of rare earth chloride is 1-3 parts. The rare earth compound epoxy zinc-rich paint for preventing microorganism attachment has the advantages of better function for resisting SRB (Sulfate-Reducing Bacteria) and strong capability of preventing organism attachment and preventing corrosion.

An electric steering apparatus includes a brushless motor 3 which applies torque to a steering system through a speed reduction mechanism 4, and a resolver 7 which detects a rotation angle of the output shaft 31 of the brushless motor 3. The resolver 7 is arranged between the brushless motor 3 and the speed reduction mechanism 4 in a manner separately from the body 32 of the brushless motor 3.

The invention belongs to the technical field of screen manufacturing, and particularly relates to an optical fiber laser manufacturing method of a stainless steel screen. The method comprises the following steps of (1) material selection; (2) material feeding and leveling; (3) optical fiber laser cutting; (4) detection: detecting the mesh aperture and pitch of the screen by using a high-definition image detector; (5) cleaning: performing comprehensive cleaning treatment on the screen which is detected and screened to be qualified by using ultrasonic waves; (6) drying and burr removal: placing the cleaned screen into drying equipment, carrying out blow drying through dry compressed air, and then removing burrs in holes on a metal plate deburring machine; (7) sampling inspection; and (8) packaging: packaging qualified products being subjected to sampling inspection with special bags. A stainless steel plate is used as a cutting material, and a special movable bracket and a balance tensioning device are additionally arranged on an optical fiber laser cutting machine, so that the situation that the cutting precision is reduced due to the fact that the stainless steel plate shakes in the laser cutting process is avoided, the yield is increased, and good market application prospects are achieved.

The invention discloses a portable water tube tiltmeter with double-measuring bar. The tiltmeter consists of two measuring bars, a transparent water tube, a dial gauge measuring and reading device anda plurality of stainless steel measuring seats; each measuring bar comprises a transparent measuring cylinder, a valve, a support bar and a stainless steel measuring head, the support bar is connected with the stainless steel measuring head and the transparent cylinder, and the valve is arranged on the transparent cylinder; a plurality of stainless steel measuring seats are buried at the parts ofdifferent measuring points respectively, the two measuring bars are located at different measuring points respectively, the stainless steel measuring heads of the two measuring bars are inserted intothe stainless steel measuring seats of different measuring points respectively, the water tube is communicated with the transparent cylinders of the two measuring bars by the valve, the transparent cylinders are filled with water, and the dial gauge measuring and reading device is inserted into the transparent cylinders to measure relative sedimentation values among the measuring points. The tiltmeter has the obvious advantages of higher precision, convenient carrying, no rust corrosion and aging problems, easy measuring point protection and instrument maintenance, lower cost and the like.

The invention discloses a wear-resistant corrosion-resistant aluminum-based metal ceramic composite coating and a preparation method thereof, and relates to the technical field of anti-corrosion coatings. According to the composite coating, inorganic phosphate is used as a binding agent, aluminum-based metal ceramic with aluminum particles wrapped by a submicron ceramic reinforcement in an embedded mode is used as filler, and the composite coating with the functional filler of a quasi-continuous micron network structure is obtained through coating and heat treatment curing. The prepared aluminum-based metal ceramic composite coating is environmentally friendly, has excellent corrosion resistance and abrasion resistance and good weather resistance, is simple and convenient in coating process and has wide application prospects in the field of ocean engineering.

The invention is a grinding and polishing and processing process for bearing retainer. The steps are: 1). The grinding material are mixed according to a certain proportion and they are put into the polisher; 2). Pours in some water and adds in polishing compound; 3). The piece is put into the body, starts the polisher to work, regulates the speed; 4). Carries on water rinsing action; 5). Starts the drier, regulating the temperature, and puts the piece into the direr; 6). The product can be outputted after each piece is finished in each time period; 7). Through the material output port, they are transmitted to the vibration sieve, and they can enter the rust resisting device through cool wind blow. The process is excellent and it can saves energy, reduces the cost, low noise, no smear, no rust, and excellent cleanness.

The invention discloses a coal water slurry blended fuel engine oil composition. Polyinternalolefins and castor-bsae dioctyl sebacate used as base oil are matched with multiple composite additives to obtain the composition. The composite additives comprise an antiwear additive, an antioxidant preservative, an antifoam agent, a demulsifying compound, a viscosity index improver, a metal passivator, a detergent agent, a dispersing agent, an antioxidant, an oily agent, a friction improver, a reinforcing agent and a rust inhibitor. The engine oil composition has excellent cleaning and dispersion effects, prevents the piston ring from sticking, and keeps the engine clean. Due to excellent viscosity-temperature characteristic, excellent alkali number retentivity, acid neutralizing capacity and demulsifying capacity, the engine oil composition can inhibit the black oil sludge from generation, so that the engine is cleaner. Due to favorable high-temperature oxidation stability, high shear stability, favorable rubber compatibility, favorable cold-starting property and excellent fuel economical efficiency, the engine oil composition can not corrode or tarnish the moving parts, ensures the oil product to maintain sufficient oil film strength, has better extreme-pressure abrasion resistance, and lowers the abrasion and engine oil consumption.

The invention discloses an oil composition for emulsified diesel oil engines. According to the oil composition, II-class base oil and polyinternalolefins are used as base oil, and a plurality of additives are matched. The oil composition comprises an antirusting agent, an oxidation-corrosion inhibitor, an anti-foaming agent, a viscosity index improver, a metal deactivator, a clearing agent, a dispersing agent, an antioxidant, a reinforcing agent, an oiliness agent and an anti-creaming agent. The oil composition for the engines has excellent clean dispersion effect, so that sediments of piston rings are reduced; the oil composition has excellent viscosity-temperature characteristics, alkali value retentivity and acid neutralization capacity, and can inhibit the generation of black oil sludge, so that the engines are relatively clean; the oil composition has good high temperature oxidation resistance stability, high shear stability, anti-emulsifying property, rubber compatibility, good low temperature startability, excellent fuel economy performance and has no corrosion and rusting for moving parts, enough oil film strength of oil is guaranteed, and the abrasion and the oil consumption are reduced.

The invention discloses a chemical silver plating solution for the surface treatment of a printed circuit board (PCB). The chemical silver plating solution (1L) comprises following raw materials by weight: 10 to 100 grams of complexing agent, 0.1 to 3.0 grams of Cu<2+>, 0.5 to 15 grams of surfactant, 0.1 to 5.0 grams of copper antioxidant, 0.4 to 1.0 gram of silver ion, enough nitric acid, which can adjust the pH of the silver plating solution to 0.08-0.3, and the balance being distilled water. The chemical silver plating solution can form a silver layer on the copper circuits on a printed circuit board; the thickness of the silver layer is uniform and is in a range of 0.15 to 0.3 millimeter; after the surface treatment, other elements can still be welded on the PCB; the color is not changed after five times of reflow soldering; less than 10% of the thickness of copper layers of copper wires is corroded; and the processed PCB will not be corroded and the color will not change after thePCB is placed in neutral salt fog for 24 hours.

The invention discloses flame-retardant and anti-rusting anti-adhesion epoxy paint which is characterized by being prepared from the following raw materials in parts by weight: 30-40 parts of E-51 epoxy resin, 12-17 parts of fluorosilicone resin, 8-12 parts of polybutadiene epoxy resin, 3-5 parts of vinyl triamine, 2-3 parts of urotropine, 0.4-0.8 part of bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate, 12-15 parts of modified asphalt, 2-4 parts of asbestos, 1-2 parts of sodium silicate, 3-6 parts of modified waste clay sand, 3-4 parts of hexachlorocyclopentadiene, 1-3 parts of p-nitrobenzoic acid, 3-4 parts of single methyl phosphinic acid calcium, 0.5-1.0 part of phenethyl naphthol polyoxyethylene ether, 2-4 parts of nano calcium carbonate, 5-7 parts of diethylene glycol, 7-9 parts of xylene and 9-13 parts of acetic ether. The fluorosilicone resin added into the paint disclosed by the invention is excellent in temperature resistance, adhesion prevention, chemical resistance, antifouling property and rain corrosion resistance; the mutual synergistic effects of pentaerythritol phosphate, single methyl phosphinic acid calcium and hexachlorocyclopentadiene added into the paint are brought into play, so that the flame retardancy of the paint is improved; as the waste clay sand is modified and added into the paint, both the cost of the paint is lowered, the weather resistance and corrosion resistance of the paint are improved, and the environment pollution is also alleviated.

The invention discloses super-weather-resistant low-VOC bus paint and a preparation method thereof. The super-weather-resistant low-VOC bus paint is obtained by mixing a component A and a component Baccording to the mass ratio being (1.5-2.5):1, wherein the component A comprises, by weight, 50-70 parts of hydroxylated acrylic resin, 5-10 parts of diluent, 1-5 parts of solvent, 0.1-0.6 part of a flatting agent, 0.5-1 part of ultraviolet light absorber and 15-25 parts of a colorant, and the component B comprises, by weight, 50-65 parts of a curing agent, 15-30 parts of diluent and 10-30 parts of solvent. The VOC value of the super-weather-resistant low-VOC bus paint is lower than 415 g / L, water resistance is kept for 25 days or above, and good weather resistance is achieved.

The invention discloses an engine carbon deposit combustion cleaning agent. The engine carbon deposit combustion cleaning agent is prepared from the following raw materials in percentage by weight: 60% to 80% of dibutyl carbonate, 0.2% to 1.5% of benzotriazole, 0.5% to 2.5% of mixed cresol, 3% to 8% of mixed trimethylbenzene, 3% to 8% of ethylene glycol monobutyl ether, 5% to 15% of n-octanol and 2% to 5% of cyclohexanol. In addition, the invention further discloses a preparation method for the cleaning agent. The engine carbon deposit combustion cleaning agent disclosed by the invention can be used for slowly and gradually stripping hard carbon deposits during the running of an automobile, effectively cleaning stubborn carbon deposits from all parts of an engine and recovering normal functions of the engine; meanwhile, the content of HC in automobile exhaust gas is lowered by 85% or more, the content of CO is lowered by 67% or more, the content of PM2.5 is lowered by 75% or more, and the exhaust emissions reach national V standards; the engine carbon deposit combustion cleaning agent has high octane number and cetane number and has the flash point above 55 DEG C, thereby being capable of being applied to diesel oil and gasoline.

The invention discloses an anti-corrosive anti-pollution environment-friendly plastic brake valve with flexible seal, and solves the defects that in the prior art, the manufacturing process of a flexible seal brake valve is complicated, the manufacturing cost is high, and secondary pollution is easily caused for fluids. The plastic brake valve comprises a valve body, a valve cover, a valve rod and a brake plate, wherein the valve body is in a three-way structure; the valve cover is arranged at the top end of the valve body, and is movably connected with the valve body; one end of the valve rod penetrates through the valve cover and stretches to the inside of the valve body, and the other end of the valve rod is provided with an adjusting hand wheel; the brake plate is arranged at one end of the valve rod; the brake plate is a composite plastic brake plate; the valve body and the valve cover are both made of modified polyphenylene oxide; and copper connectors are arranged at two connecting ends of the valve body. On the basis, the invention further discloses a machining process of the anti-corrosive anti-pollution environment-friendly plastic brake valve with flexible seal. The anti-corrosive anti-pollution environment-friendly plastic brake valve with flexible seal disclosed by the invention has a simple structure, and can be conveniently machined through injection molding; therefore, the brake valve is suitable to be widely promoted and applied.