43results about How to "Maintain corrosion resistance" patented technology

A liquid cooling system for use in an electronic apparatus, being super small-sized and thin in the shape and being suitable for cooling a heat-generation part, such as, a semiconductor element having large amount of heat generation, for example, with maintaining the corrosion resistance thereof for a long time period, comprises: a pump for supplying a cooling liquid; a heat-receiving jacket, being supplied with the cooling liquid, for receiving heat from an electronic parts; a radiator, being supplied with the cooling liquid passing through the heat-receiving jacket, for radiation heat; and flow passages for circulating the cooling liquid in a route passing through the radiator back to said pump, wherein an ion exchange bag, having an ion exchange resin and a bag enclosing it therein, is disposed in a part of the constituent parts of the liquid cooling system, and/or the ion exchange bag is exchangeable.

A resin-coated seamless can of the present invention is a resin-coated seamless can formed of a resin-coated metal sheet 1 which is produced by coating a polyester resin layer 3 containing polyethylene terephthalate onto a surface of a metal substrate 2, wherein the density of a polyester resin layer of a can inner surface side is set to equal to or more than 1.36 at a can barrel upper portion. Further, an infrared dichroic ratio (R1) of the polyester resin layer at the inner surface side of the can barrel portion which is expressed by a following formula (1) is set to equal to or more than 1.1. R1=Iw(⊥)/Iw(∥) . . . (1). In the formula (1), Iw(⊥) indicates an infrared absorption intensity of 973 cm⁻¹ with respect to polarized infrared rays perpendicular to the can height direction at the can barrel portion, and Iw(∥) indicates an infrared absorption intensity of 973 cm⁻¹ with respect to polarized infrared rays parallel to the can height direction at the can barrel portion.

The invention provides a platinum alloy material which consists of the following components in percentage by mass: 0.3-1% of Ti, 0.02-0.15% of Zr and the balance of Pt. The preparation method of the alloy comprises the following steps of: smelting to prepare a Pt-Ti-Zr master alloy in a vacuum arc furnace, and smelting and casting in a vacuum induction furnace to prepare a Pt-Ti-Zr alloy ingot; performing solution heat treatment and low-temperature aging heat treatment of the alloy ingot in the vacuum arc furnace; performing plastic processing such as room-temperature forging, rolling (drawing) and the like to prepare a platinum alloy material sheet or wire of the proportion. The alloy provided by the invention maintains the corrosion resistance and plasticity of platinum while the hardness is over twice the hardness of platinum; the alloy is widely applied to electrode materials, jewelry and the like.

The invention relates to a plate capable of providing a double-color surface and a forming method of the plate. The plate comprises a metal or ceramic substrate, a sacrificial layer, a first color layer and a transitional layer, wherein the sacrificial layer is positioned above the substrate and is corroded by a chemical solution easily as compared with the substrate; the first color layer is positioned above the sacrificial layer; and the transitional layer is positioned below the first color layer so as to enhance the binding force of the the transitional layer and the first color layer. The plate can form the background and the pattern and provides patterns with the thin line width by utilizing different colors, and has scratching resistance, wear resistance and corrosion resistance.

The present invention provides an aluminum alloy and an aluminum alloy clad material which are capable of retaining corrosion resistance even when a sacrificial material is not used.

The present invention is a surface-treated aluminum alloy, in which: a surface film is formed at least on one surface of the aluminum alloy; the thickness of the surface film is 0.1 to 10 μm; a material forming the surface film contains oxides having a standard free energy of formation of 500 kJ/mol or less at a temperature of 500 K by 80% by mass or more in total; and the average particle size of the oxides is 5 to 50 nm.

The invention discloses palladium-silver alloy for repairing an oral cavity. Alloy ingredients are optimized by an alloy material. Compared with the prior art, the obtained material has the advantages of good mechanical property, good corrosion resistance, low sensitization, and beautiful color and luster under the premise of not reducing the alloy property and clinical use effect; and the cost is just 1/4 to 1/3 of gold alloy.

The invention relates to a refractory material line brick for steelmaking and the preparation method of the refractory material line brick, in particular to a metallic composite low-carbon magnesium carbon slag line brick and the preparation method of the metallic composite low-carbon magnesium carbon slag line brick. The composite low-carbon magnesium carbon slag line brick is prepared by pressing and moulding the following components in percentage by weight: 85%-95% of magnesia, 2.0%-4.5% of graphite, 1.0%-6.0% of metallic steel fibre, 0.5%-2.0% of phenolic resin, and 1.5%-5.0% of metal deoxidizer, wherein the metal deoxidizer is composed of metal aluminium powder and silicon powder, wherein the silicon-aluminium ratio is 2.0: 1-3.0: 1. The method for preparing the metallic composite low-carbon magnesium carbon slag line brick comprises the steps of mixing, ageing the mixture, pressing and moulding, and curing to obtain the finished product. The metallic composite low-carbon magnesium carbon slag line brick has the advantages of improving the thermal shock stability and high-temperature strength of the low-carbon magnesium carbon brick.

A stainless steel sheet useful as a separator for a low-temperature fuel cell has the surface state that a lot of fine projections (p) stand close together around many fine pits (d) formed over a whole surface. The surface state is realized by alternating electrolytic etching in a ferric chloride solution. When the stainless steel separator is built in a fuel cell, contact resistance between the separator and a graphite electrode is kept at a lower level even in a corrosive atmosphere. Consequently, the fuel cell can be driven with high power-generating efficiency over a long term even under severely corrosive conditions without generation of massive Joule heat.

The invention relates to a high-strength corrosion-resistant weldable aluminum-magnesium-erbium-zirconium alloy wide sheet and a preparation method thereof, and aims to solve the problems of low strength and low post-welding strength of the existing high-performance aluminum alloy sheet in China. The method comprises the following steps of: smelting a pure aluminum ingot, a pure magnesium ingot, an aluminum-manganese intermediate alloy, an aluminum-erbium intermediate alloy, an aluminum-zirconium intermediate alloy, an aluminum-titanium intermediate alloy and an aluminum-beryllium intermediatealloy to obtain an aluminum alloy solution; and sequentially carrying out casting, homogenizing annealing, hot rolling cogging wide rolling, hot continuous rolling, uncoiling slicing, sheet annealing, tension leveling and finished product sawing on the aluminum alloy solution to obtain the aluminum-magnesium-erbium-zirconium alloy wide sheet. The invention can obtain the high-strength corrosion-resistant weldable aluminum-magnesium-erbium-zirconium alloy wide sheet and the preparation method thereof.

The invention provides a formula and a preparation method of low-carbon lubricating oil. The formula is characterized by comprising the following components in parts by weight: 5 to 30 parts of synthetic base oil, 35 to 55 parts of III-type hydrogenated base oil, 15 to 22 parts of II-type hydrogenated base oil, 8 to 15 parts of V-type synthetic phenolic ester base oil, 5 to 15 parts of hydrogenated base oil 150BS and the balance of additives. The preparation method comprises the following steps of adding the base oil in parts by weight into blending equipment, raising temperature to 60 DEG C, and uniformly blending the base oil at constant temperature; sequentially adding various additives, raising the temperature to 70 to 75 DEG C (not more than 75 DEG C), stirring the base oil and the additives within 40 minutes at constant temperature to completely mix the base oil and the additives, and performing circulating filtration and cooling in four stages to obtain the low-carbon lubricating oil. The formula and the preparation method thereof have the beneficial effects that the limit of soot content is reduced; the low-carbon lubricating oil is energy-saving, low-phosphorus, environment-friendly, high in abrasion resistance and resistant to high temperature and high load; the high-temperature detergency is greatly improved; the carbon emission of the lubricating oil is effectively reduced.

The invention provides multi-layer functional corrosion-resistant concrete. The multi-layer functional corrosion-resistant concrete comprises a core concrete structure, a core steel structure, connectors with steel sleeves, welded steel fabric and a surface layer concrete structure. The core steel structure is arranged inside the core concrete structure, the welded steel fabric is arranged inside the surface layer concrete structure, and the core steel structure is connected with the welded steel fabric through the connectors with the steel sleeves. The invention further relates to a mechanical connecting method of the multi-layer functional corrosion-resistant concrete. The core steel structure and the welded steel fabric structure on the surface layer are connected through the connectors, the steel sleeves and deformed steel bars. According to the invention, the requirement for the service strength of marine facilities can be met, the high corrosion resistance is achieved, and therefore oceanic building concrete can have the longer service life. The multi-layer functional corrosion-resistant concrete and the mechanical connecting method of the multi-layer functional corrosion-resistant concrete have the advantages of being high in practicability and functionality.

The invention relates to a mullite carbon brick and a preparation method thereof, which belong to the technical field of refractory matter preparation. The mullite carbon brick is prepared from the raw materials: 60 to 75 parts of electro-fused mullite particles, 10 to 30 parts of electro-fused mullite fine powder, 5 to 10 parts of carbon, 1 to 5 parts of antioxidant, and 1 to 3 parts of binding agent. The preparation method comprises the steps of weighing the raw materials according to the raw material ratio, feeding into a mixer for fully mixing, then compression moulding in a brick machine,and finally baking and curing to obtain the mullite carbon brick. The preparation method provided by the invention is simple, the steps are easy to operate, and the mullite particles replace magnesiaparticles, so that the cost increase caused by shortage of magnesia raw materials and price soars is relieved, and meanwhile, excellent performances of erosion resistance and thermal shock resistanceof a magnesia carbon brick are maintained.

The invention relates to a steel-plate sandwich panel and a processing method therefor. The steel-plate sandwich panel comprises wrapping steel composite plates at the two sides and a solid material filled between the wrapping steel composite plates. Each steel composite plate comprises wrapping stainless steel plates at the two sides and a middle carbon steel plate; and the solid material is a high-density polyethylene material or foamed ceramic material. A heat insulating material is stuck to the back face of the steel-plate sandwich panel, so that a heat preservation and decoration integrated panel can be formed. The steel-plate sandwich panel disclosed by the invention has the characteristics of high decoration performance, good durability, high strength, convenience in mounting, economical efficiency and reasonableness and can be applied to the fields of architectural decoration, building enclosure and partition, container manufacturing, and the like.