70results about How to "Satisfy corrosion resistance" patented technology

An electric transmission line carbon fiber composite core manufacturing method mainly includes the following steps of conducting preprocessing, dehumidification and glue infiltration, pre-hardening carbon fibers in a two-section heating mode, enabling high-strength glass fibers or basalt fibers to cover a pre-hardened carbon fiber core according to certain rules, hardening the carbon fiber core covered by the high-strength glass fibers or the basalt fibers in a three-section mode, and conducting post curing and cooling, wherein consumed epoxy resin is high-temperature-resistant special type pultrusion epoxy resin which is prepared by adding modified anhydride compounds in the glue infiltration process. The electric transmission line carbon fiber composite core manufacturing method has the advantages that the carbon fibers are preformed in a pultrusion mode to be in a semi-hardened state after being infiltrated, heating temperature sections are controlled so that the carbon fiber core with excellent performance can be obtained, particularly, heating and hardening are conducted in the three-section mode in the final covering and forming process, therefore, the rigidity of final products is ensured, the smoothness of production and production efficiency are improved, and the carbon fiber composite core produced through combination can completely meet the requirements of electric power transmission.

The invention belongs to the technical field of metallurgy, and provides a large-diameter seamless steel tube for high-pressure gas cylinders and a manufacturing method thereof. The large-diameter seamless steel tube for high-pressure gas cylinders comprises the following chemical components in percentage by mass: 0.30-0.60% of C, 0.20-0.50% of Si, 0.20-0.60% of Mn, at most 0.010% of P, at most 0.010% of S, 0.90-1.70% of Cr, 2.50-3.50% of Ni, 0.25-0.55% of Mo, 0.05-0.25% of V and the balance of Fe. The manufacturing method adopts spongy iron and scrap steel as raw materials for steelmaking. The large-diameter seamless steel tube has the advantages of high heat stability, high strength, impact toughness, stable enduring plasticity, high heat resistance, excellent corrosion resistance and excellent fatigue resistance, and the yield strength is not lower than 1000 MPa.

Disclosed is an aluminum alloy clad material which includes a core material; a sacrificial anode material on one surface of the core material; and a filler material on the other surface of the core material and composed of an Al—Si alloy, in which the core material contains 0.3 to 2.0 percent by mass of Mn, 0.15 to 1.6 percent by mass of Si, 0.1 to 1.0 percent by mass of Cu, and 0.1 to 1.0 percent by mass of Mg, with the remainder including Al and inevitable impurities, the sacrificial anode material contains 7.0 to 12.0 percent by mass of Zn, 0.3 to 1.8 percent by mass of Mn, and 0.3 to 1.2 percent by mass of Si, with the remainder including Al and inevitable impurities, and has a thickness of 10 to 30 μm. The sacrificial anode material shows resistance to both local corrosion and general corrosion.

The invention provides a composite fungicide and metal cutting fluid with the same and a preparation method of the composite fungicide. The composite fungicide comprises 1,2-benzisothiazole-3-ketone, epsilon-polylysine and water-soluble organic amino. In the composite fungicide provided by the invention, the three components, namely the 1,2-benzisothiazole-3-ketone, the epsilon-polylysine and the water-soluble organic amino are synergistic, so that the sterilization effect of the composite fungicide is improved; and the metal cutting fluid with the composite fungicide is good in sterilization effect, remarkable in biological stability, high in security and wide in application prospect, meets on-site process requirements such as lubrication, cooling, emulsion stability and corrosion resistance, and meets ideas of green chemicals.

A component member of a fishing reel incorporating a body constituted by a Mg alloy; and a corrosion prevented layer formed on the body by a high-voltage anodization process or a body constituted by a Mg alloy; a corrosion prevented layer formed on the body by a high-voltage anodization process or conversion treatment; and a sealing layer which is formed on the corrosion prevented layer by an impregnating process and which is free from any change in the dimension thereof.

A method of producing a hot-dip galvanized steel sheet includes applying, to a hot-dip galvanized steel sheet having a Ra of 0.5 to 2.0 μm and a PPI of 150 or more, a predetermined surface treatment agent, i.e., a surface treatment agent containing a specified resin compound, a specified urethane resin having cationy, a specified silane coupling agent having a functional group, a specified organic Ti chelate compound, and a tetravalent vanadyl compound at a specified ratio; and drying the surface treatment agent at a ultimate sheet temperature of 50° C. to 180° C. to form a surface treatment coating film with a coating weight of 0.2 to 1.0 g/m² on the surface of the steel sheet.

The invention relates to the technical field of soil column processing, in particular to a three-dimensional greening light-weight nutrient soil column and a preparation method thereof. The three-dimensional greening light-weight nutrient soil column comprises a soil column (1), wherein the soil column (1) is a cylindrical hollow soil column. The three-dimensional greening light-weight nutrient soil column is characterized in that the soil column (1) is formed by mixing, stirring and compressing water, substrates and bonding agents, the weight ratio of the water to the substrates is (1-2):(48-49), and the volume ratio of the bonding agents to the substrates is 2:8. The substrates of the soil column are formed by mixing saw dust, grass carbon, perlite, loess and organic fertilizers, various kinds of mineral nutrient ingredients required by plant growth are realized, nutrient elements such as nitrogen, phosphorus and potassium in atmosphere can also be absorbed, the self nutrition is realized, the one-step and concentrated completion requirements of work such as cultivation, fertilization and maintenance are met, and the soil column has the characteristics of light weight, good water retention and fertilizer retention performance, durable modeling, corrosion resistance and the like, and meets indoor and outdoor three-dimensional greening requirements. The invention also provides the preparation method of the three-dimensional greening light-weight nutrient soil column, and the preparation method has the advantages that the operation is simple, and the popularization is easy.

A magnetic recording medium and a method of manufacturing a magnetic recording medium are provided, in which degradation of wear resistance against a magnetic head and performances of the medium is restrained, and metal dissolving out of the magnetic recording layer and degradation of corrosion resistance due to low coverage of a protective layer are suppressed. The method of manufacturing provides a magnetic recording medium having a convex portion of a magnetic recording layer for recording information and a concave portion without a recording function on a disk substrate. An ALD protective layer is formed on the magnetic recording medium using an ALD method. The magnetic recording medium has a convex portion of a magnetic recording layer for recording information and a concave portion without a recording function on a disk substrate, and has a protective layer formed by an ALD method on the concavo-convex pattern.

Disclosed is a metal-metal oxide composite material for dental prosthesis, which has a white surface with good aesthetic quality and includes a titanium or titanium alloy substrate; and an oxidation layer present on a surface of the substrate. The metal-metal oxide composite material is manufactured by subjecting the substrate to a heat treatment at a temperature of around 1000° C. in an oxygen-containing atmosphere to form the oxidation layer on the surface of the substrate with good adhesion.

The invention provides a non-stick electrolyte crust breaking hammer head for producing electrolytic aluminum. The crust breaking hammer head comprises a hammer body, and the part, contacted with electrolyte, of the hammer body at least in crust breaking is made of any one of a carbon material and silicon carbide bonded silicon nitride. The problem of sticking and lump generation of electrolyte can be completely solved, in addition, a non-metal material is adopted as a matrix and neither a compound coating nor the matrix contains harmful elements influencing the mass of electrolytic aluminum, so that the non-stick electrolyte crust breaking hammer head is high-temperature-resistant and corrosion-resistant, not only can the anti-oxidative, corrosion-resistant and wear-resistant performances of the part, contacted with 920-960DEG C electrolyte, of the lower part of the hammer head be met, but also iron element can be fundamentally prevented from entering molten aluminum.

The invention provides a fiberglass reinforced plastic telegraph pole. The telegraph pole comprises a pole body, a cross arm, lead wire seats, hardware fittings, a clamp, an end cap and a sleeve, wherein the cross arm is arranged on the upper part of the pole body through the clamp; the end cap is arranged on the top end of the pole body; three lead wire seats and the hardware fittings are fixed at two ends of the cross arm and the end cap respectively through bolts; the sleeve is sleeved on the lower part of the pole body; lead wires are fixed between the lead wire seats and the hardware fittings; the pole body is of a hollow conical structure with a uniformly thickened wall, wall thickness variation delta is between 0.15 and 0.2 percent, the wall thickness variation dmax is the maximum wall thickness of the pole body, namely the wall thickness of the lowest end of the pole body, the wall thickness variation dmin is the minimum wall thickness of the pole body, namely the wall thickness of the top end of the pole body, and l is the bus length of the pole body. By adopting the design with a special variable thickness pole body structure, the materials play the best carrying function, and the manufacture cost is reduced; and in the pole body, the fiberglass reinforced plastic flange at the root of the pole body is integrally molded by adopting a winding method, while the telegraph pole is convenient to assemble with the ground, the mechanical performance requirement is met; and the pole body, the cross arm and the lead wire seats are produced by adopting different materials and molding processes, the designable performance, weight reduction and other function requirements are met while corrosion resistance and electric insulation of the telegraph pole are fulfilled.

The invention discloses a high density anti-compression optical fiber bundle optical cable for a data center. The optical fiber herein includes a micro-beam optical fiber, an aramid fiber layer whichcoats outside the micro-beam optical fiber, and a sheath layer which coats outside the aramid fiber layer. The sheath layer is embedded with three non-metal reinforcing members therein. The three non-metal reinforcing members constitute a triangle. The material of the sheath layer is composed of the following components by weight: polyurethane of 20-40 parts, polyvinyl choride of 25-45 parts, polyoxyalkylene modified polymethyl siloxane of 5-15 parts, chemigum of 20-30 parts, dibutoxyethyl adipate of 0.5-2 parts, trioctyl phosphate of 0.4-1 parts, modified filling material of 0.5-2 parts, a fire retardant of 2-4 parts, an activator of 0.2-0.6 parts, and a promoter of 0.5-1 parts. According to the invention, the optical fiber uses a center tubular structure, can ensure the moulding processof the optical fiber free from impact, and can also meet higher mechanical and environmental performances of the optical fiber.

The invention relates to a breathing type photovoltaic connecting box for a building integrated photovoltaic (BIPV) photovoltaic assembly. The breathing type photovoltaic connecting box comprises a casing and is characterized in that at least one breathing hole directly contacted with the external air is positioned on the surface of the casing (7), a breathing film (6) is covered on each breathing hole to enable air to pass through freely and prevent liquid from passing through, at least one capillary tube access hole (4) is arranged on the surface of the casing close to the inside of the photovoltaic assembly, a capillary tube is arranged on each capillary tube access hole (4), one end of the capillary tube extends into the photovoltaic assembly, the other end of the capillary tube extends into the casing (7), and pressure of the two ends can be balanced. By means of the connecting box, the BIPV photovoltaic assembly and the inside of the breathing type photovoltaic connecting box can form microcirculation similar to the microcirculation principle in the bodies of living beings. Thus, pressure of a hollow layer in the BIPV photovoltaic assembly can be changed, and safety of the hollow layer of the BIPV photovoltaic assembly is improved when the BIPV photovoltaic assembly is applied to buildings.

The steel arch concrete simply supported beam consists of steel skeleton or steel pipe concrete, high strength steel bar or wire cable, longitudinal steel rib, concrete and hoop rib. The inside steel skeleton or steel pipe concrete has two ends connected to high strength steel bar or wire cable to constitute the key stress part of the steel arch concrete simply supported beam; and the outside of the steel arch concrete simply supported beam has longitudinal steel rib and hoop rib configured and concreted deposited. The steel arch concrete simply supported beam has raised bearing capacity and low cost.