Abstract:
The present invention relates to an aluminum alloy product for use as a finstock material within brazed heat exchangers and, more particularly, to a finstock material having high strength and conductivity after brazing. The invention is an aluminum alloy finstock comprising the following composition in weight %: Fe 0.8-1.25; Si 0.8-1.25; Mn0.70-1.50; Cu0.05-0.50; Znup to 2.5; other elements less than or equal to 0.05 each and less than or equal to 0.15 in total; and balance aluminum. The invention also relates to a method of making the finstock material.
Abstract:
A hermetically sealed container is equipped inside thereof with: a melting furnace; a cooling roll for subjecting the molten metal tapped from the melting furnace to primary cooling to form a casting; and a rotatable cooling drum which receives the casting formed by the cooling roll and which subjects the casting to secondary cooling. The cooling drum has: a tubular member elongated in one longitudinal direction and having a receiving opening which is formed to open on one side of the tubular member to receive therein the casting, and a discharge opening which is formed to open on an opposite side of the tubular member to discharge the casting that has been subjected to the secondary cooling; and a transfer means for transferring the casting received from the receiving opening toward the discharge opening in response to the rotation of the tubular member.
Abstract:
Continuous casting equipment includes a casting product reduction apparatus and a casting product drawing apparatus, the casting product reduction apparatus including a pair of casting product reduction rolls that sandwich and apply pressure to a casting product and being configured to apply reduction to the casting product, the casting product drawing apparatus being provided in a following stage of the casting product reduction apparatus and configured to sandwich and draw the casting product with a pair of casting product drawing rolls. At least one of the pair of casting product reduction rolls includes a large-diameter part that projects radially outward in an axial-direction center region and applies pressure to a width-direction center region of the casting product. The casting product that is subjected to reduction by the casting product reduction apparatus has a depressed part corresponding to the large-diameter part. At least one of the pair of casting product drawing rolls of the casting product drawing apparatus includes a depressed part supporting part that contacts with and supports the depressed part, and is driven by a driving mechanism An axial-direction length L2 of the depressed part supporting part and an axial-direction length L1 of the large-diameter part of the casting product reduction roll satisfy 0.5×L1≦L2
Abstract:
A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si3Al3Fe2 and Si2Fe in a ratios suitable to improve the lifespan of the lithium battery.
Abstract translation:负极活性物质,包含负极活性物质的锂电池和负极活性物质的制备方法。 负极活性物质包括含有Si,Al,Fe的硅系合金。 硅基合金包括硅纳米颗粒的活性相和Si 3 Al 3 Fe 2和Si 2 Fe的惰性相,其比例适合于改善锂电池的使用寿命。
Abstract:
A steel strip for coiled tubing contains, in terms of percent by mass, C: 0.10% or more and 0.16% or less, Si: 0.1% or more and 0.5% or less, Mn: 0.5% or more and 1.5% or less, P: 0.02% or less, S: 0.005% or less, Sol. Al: 0.01% or more and 0.07% or less, Cr: 0.4% or more and 0.8% or less, Cu: 0.1% or more and 0.5% or less, Ni: 0.1% or more and 0.3% or less, Mo: 0.1% or more and 0.2% or less, Nb: 0.01% or more and 0.04% or less, Ti: 0.005% or more and 0.03% or less, N: 0.005% or less, and the balance of Fe and inevitable impurities.
Abstract:
A cast slab having a pair of wide, substantially planar, and opposite side faces and a pair of narrow opposite edge faces, is ground by first orienting the slab with the side and edge faces vertical. Then grinding tools are pressed oppositely and horizontally against opposite wide faces, with the grinders throwing the chips downward. The tools and slab are relatively vertically displaced for the grinding.
Abstract:
The present invention relates to an aluminum alloy product for use as a finstock material within brazed heat exchangers and, more particularly, to a finstock material having high strength and conductivity after brazing. The invention is an aluminum alloy finstock comprising the following composition in weight %: Fe 0.8-1.25; Si 0.8-1.25; Mn0.70-1.50; Cu0.05-0.50; Znup to 2.5; other elements less than or equal to 0.05 each and less than or equal to 0.15 in total; and balance aluminum. The invention also relates to a method of making the finstock material.
Abstract translation:本发明涉及一种在钎焊热交换器中用作散热片材料的铝合金产品,更具体地说,涉及在钎焊之后具有高强度和导电性的散热片材料。 本发明是一种铝合金粉末原料,其包含以重量%计的以下组成:Fe 0.8-1.25; Si 0.8-1.25; Mn 0.70-1.50; Cu 0.05-0.50; Zn高达2.5; 其他元素总共小于或等于0.05且小于或等于0.15; 并平衡铝。 本发明还涉及制造散热片材料的方法。
Abstract:
The invention relates to a method of grinding a continuously cast product (1), in particular a slab, wherein the continuously cast product is of rectangular cross section with two wide side faces (2 and 3) lying opposite one another and two narrow edge faces (4, 5) lying opposite one another, at least the wide side faces (2 and 3) being subjected to a surface treatment by at least one grinding tool (6).In order to be able to achieve a higher quality in the processing of the continuously cast product and to be able to collect the grinding chips in a simpler manner, the invention provides that during the grinding of a wide side face (2 and 3) of the continuously cast product (1), the continuously cast product (1) is positioned by a seat (7) such that a perpendicular (8) to the wide side face (2 and 3) of the continuously cast product (1) forms an acute angle (α) greater than zero degrees with the vertical (V).Furthermore, the invention relates to an apparatus for grinding a continuously cast product (1).
Abstract:
A hot rolled steel strip made by the steps including assembling a twin roll caster, forming a casting pool of molten steel of such composition that the cast strip produced comprises by weight, greater than 0.25% and up to 1.1% carbon, between 0.40 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, counter rotating the casting rolls to solidify metal shells and forming a steel strip, hot rolling the steel strip such that mechanical properties at 10% and 35% reduction are within 10% for yield strength, tensile strength and total elongation, and coiling the hot rolled steel strip at a temperature between 550 and 750° C. to provide a majority of the microstructure comprising pearlite, along with bainite and acicular ferrite. The steel may have a free oxygen content between 5 and 50 ppm or between 25 and 45 ppm.
Abstract:
Semifinished products, especially strand sections that are cut off from continuous cast strands, are marked in steel mills and rolling mills so that individual pieces can be tracked. The marks applied or attached to the pieces have to be machine-readable in a sorting station. Marking and reading devices are expensive and produce undesired reading errors. The aim of the invention is therefore to create a method and a device that avoid the aforementioned disadvantages and that allow for a reliable and cost-efficient identification of semifinished products. For this purpose, a first camera is used in an identification station to obtain digitized images of optically visible separating section-specific and strand section-specific surface features on an identification surface and the images are stored in a database. A second camera is used in a sorting station to obtain digitized images of the same identification surface and these images are used in the database for an identification by comparing them with the stored images of the first camera.