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

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 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 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 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 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.