摘要:
This copper alloy wire is a copper alloy wire which is made of a precipitation hardening-type copper alloy containing Co, P, and Sn and is manufactured using a continuous cast-rolling method or cold working of a continuous cast wire rod manufactured using a continuous casting method, in which the copper alloy wire has a composition including Co: more than or equal to 0.20 mass% and less than or equal to 0.35 mass%, P: more than 0.095 mass% and less than or equal to 0.15 mass%, and Sn: more than or equal to 0.01 mass% and less than or equal to 0.5 mass% with a balance being Cu and inevitable impurities.
摘要:
A coil material capable of contributing to an improvement of the productivity of a high-strength magnesium alloy sheet and a method for manufacturing the coil material are provided. Regarding the method for manufacturing a coil material through coiling of a sheet material formed from a metal into the shape of a cylinder, so as to produce the coil material, the sheet material is a cast material of a magnesium alloy discharged from a continuous casting machine and the thickness t (mm) thereof is 7 mm or less. The sheet material 1 is coiled with a coiler while the temperature T (°C) of the sheet material 1 just before coiling is controlled to be a temperature at which the surface strain ((t/R) x 100) represented by the thickness t and the bending radius R (mm) of the sheet material 1 becomes less than or equal to the elongation at room temperature of the sheet material 1.
摘要:
A magnesium-alloy material that: (a) is produced through a rolling operation in which pressure is applied to a continuously cast material from at least three directions in the cross section of the material; (b) has a crystal structure composed of any one of: (b1) a hot-rolled structure; (b2) a hot-rolled structure and a recrystallized structure; and (b3) a recrystallized structure; and
(c) contains 0.002 to 5.0 wt. % Ca and the remainder being composed of any of: (c1) Mg and impurities; (c2) 0.1 to 12 wt. % Al, and Mg and impurities; (c3) 0.1 to 12 wt. % Al; at least one constituent selected from the group consisting of 0.1 to 2.0 wt. % Mn, 0.1 to 5.0 wt. % Zn, and 0.1 to 5.0 wt. % Si; and Mg and impurities; and (c4) 0.1 to 10 wt. % Zn, 0.1 to 2.0 wt. % Zr, and Mg and impurities.
摘要:
High strength foil having dead fold foil characteristics is produced without the rolling and other production problems encountered with prior high strength foils by controlling manganese content, interannealing temperatures and, optionally, final annealing temperatures. The alloy contains 0.05 to 0.15 %, preferably 0.095 to 0.125 %, manganese by weight. Cold worked sheet is interannealed at a temperature of about 200 °C to about 260 °C, preferably 230° to 250 °C, to produce substantially fully recrystallized sheet while maintaining most of the manganese in solid solution. The interannealed sheet is rolled to final gauge and finally annealed, preferably at a temperature of about 250 °C to about 325 °C, more preferably about 260 °C to about 325 °C, to produce dead fold aluminum foil with a yield strength of at least 89.6 MPa (13 ksi), and ultimate tensile strength of at least 103.4 MPa (15 ksi) and a Mullen rating of at least 89.6 kPa (13 psi) at a gauge of 0.0015 cm (0.0006 inch).
摘要:
The invention relates to a method for producing metal shapes with a partially or totally polygonal cross-section by means of continuous casting in a double-flanged wheel and continuous rolling using a series of at least 3 pairs of rollers with a peripheral flange, whereby said rollers are alternately horizontally and vertically disposed in a symmetrical position with respect to said shape. The inventive method is characterised in that the flanges of the first pairs of rollers are identical to those used to produce shapes with a circular cross-section; the last pair of rollers has flanges defining a section that corresponds substantially to that of the desired shape; the section formed by the grooves of the last pair of rollers has curve radiuses of between 1 and 5 mm at the highest points of the polygon; the sides of the polygon that are not parallel to the air gap pertaining to the last pair of rollers have a clearance angle of
摘要:
A method for manufacturing aluminum alloy can body stock including two sequences of continuous, in-line operations. The first sequence includes the continuous, in-line steps of hot rolling 6, coiling 7 and coil self-annealing and the second sequence includes the continuous, in-line steps of uncoiling, quenching 8 without intermediate cooling, cold rolling 9 and coiling 12.
摘要:
Procédé consistant à couler en continu un alliage ferreux dans un dispositif de coulée (12) afin d'obtenir une barre coulée solidifiée (20) à une température de formage à chaud, à transporter la barre coulée (20) à une température de formage à chaud du dispositif de coulée (12) à un dispositif de formage à chaud (10), et à façonner à chaud la barre coulée pour la transformer en un produit forgé par une réduction en deux étapes de sa section alors qu'elle est encore à une température de formage à chaud. La première étape comprend la formation d'une structure sensiblement uniforme à grains fins équiaxée ou cellulaire dans les couches superficielles extérieures de la barre coulée. La formation de ladite structure se fait par un certain degré sélectionné de déformation de la barre coulée dans sa condition de pièce coulée avant la deuxième étape, quand le produit forgé est formé par une réduction sensible de sa section. La structure à grains fins sensiblement uniformes formée sur la barre coulée pendant la première étape de déformation permet de produire une barre ayant une ductilité accrue par rapport aux barres produites dans les procédés de l'état antérieur de l'art et permet d'obtenir une réduction considérable de la section de la barre coulée pendant la deuxième étape de déformation, sans que la barre coulée ne se fissure, et même lorsqu'un pourcentage relativement élevé d'éléments d'alliage est présent dans la barre coulée.