摘要:
The present invention relates to a multi-layered sheet of aluminum alloys, comprising: at least a core layer and a sacrificial layer, being cladded, the core layer having an aluminum alloy composition comprising Si: 0.2 to 1.5 mass%, Cu: 0.2 to 1.2 mass%, Mn: 0.2 to 1.4 mass%, and Ti: 0.03 to 0.3 mass%, respectively, and comprising Fe: 1.0 mass% or less, and optionally comprising one, or two or more of Cr: 0.03 to 0.3 mass%, Zn: 0.2 to 1.0 mass%, Zr: 0.03 to 0.3 mass%, and Mg: 0.5 mass% or less, and the balance being Al and inevitable impurities, and having, as a microstructure after brazing process, a microstructure wherein the mean grain size of the rolling direction in the vertical section parallel with the rolling direction of the core layer is 200 µm or less, and the mean number density of dispersed particles, in which the mean value of centroid diameters observed by a 500-times SEM on the rolling plane of the core layer is 1 µm or more, is 6000 particles/mm 2 or less.
摘要翻译:本发明涉及一种多层铝合金板,其特征在于,至少包含芯层和牺牲层,所述芯层具有含有Si:0.2〜1.5质量%,Cu:0.2〜 1.2质量%,Mn:0.2〜1.4质量%,Ti:0.03〜0.3质量%,Fe:1.0质量%以下,Cr:0.03〜0.3质量% ,Zn:0.2〜1.0质量%,Zr:0.03〜0.3质量%,Mg:0.5质量%以下,余量为Al和不可避免的杂质,作为钎焊后的微观结构, 与芯层的轧制方向平行的垂直截面中的轧制方向的晶粒尺寸为200μm以下,分散粒子的平均密度,其中通过500次SEM观察到的质心直径的平均值 芯层的滚动面为1μm以上,为6000个/ mm 2以下。
摘要:
The present invention relates to a skin material (3) for the clad material used in a method for manufacturing a clad material (1a-d) composed of a core material (2) and one or more skin materials (3) that are superposed on either one or both faces of the core material, the skin material (3) for the clad material (1a-d) comprising: the skin material (3) for the clad material is composed of one or more layers; each layer of the skin materials (3) is made of a metal different from the core material (2) in their component compositions; and at least one layer of the skin material (3) has a cast microstructure, when the skin material (3) is superposed on either of one or both faces of the core material (2).
摘要:
The present invention relates to a method of manufacturing a clad material which is composed of a core material and two or more skin materials which are superposed on either one or both faces of the core material, the method of manufacturing the clad material comprising: a core material preparation process (S1a) where an ingot for core material is manufactured by dissolving and casting a metal for core material; a skin material preparation process (S1b,S1c) where an ingot for skin material is manufactured by dissolving and casting a metal for skin material different from the metal for core material in their component compositions; a rolled plate for skin material preparation process (S1c) where a rolled plate for skin material is manufactured by further hot-rolling the ingot for skin material; a superposition process (S2b) where a superposed material is manufactured by superposing the ingot for skin material and the rolled plate for skin material are superposed as skin materials at a predetermined position on either one or both faces of the ingot for core material; and a clad hot-rolling process (S3) where a clad material is manufactured by hot-rolling the superposed material.
摘要:
The present invention relates to an equipment for manufacturing the skin material in a method for manufacturing a clad material composed of a core material and one or more skin materials that are superposed on either one or both faces of the core material, the equipment (50a) for manufacturing the skin material comprising: a casting apparatus (51a) which dissolves a metal for the skin material different from the core material in their component compositions, and casts the skin material; an ingot-cutting apparatus (52) which cuts an ingot (3') for skin material which is cast by the casting apparatus; and a conveying apparatus (53) which conveys the ingot (3') for skin material among each apparatus (50a,52), wherein the ingot-cutting apparatus (52) is a slicing apparatus which slices the ingot (3') for skin material into a predetermined thickness.
摘要:
Disclosed herein is an aluminum alloy clad sheet for a heat exchanger including a core layer, a sacrificial layer formed on one surface of the core layer, and a filler layer including an Al-Si based alloy formed on the other surface of the core layer. The core layer includes a predetermined amount of Si, Cu, Mn, Ti, and Mg, the remainder including Al and inevitable impurities, and the sacrificial layer includes a predetermined amount of Si, Mn, and Zn, the remainder including Al and inevitable impurities. The core layer has a crystal grain size after the brazing heat treatment at 595°C for 3 minutes of at least 50 µm and less than 300 µm. The filler layer and the sacrificial layer are defined for their thickness, and the number of intermetallic compounds in the core layer is also defined to a predetermined range. By such constitution, the aluminum alloy clad sheet has improved fatigue life and post-braze strength, high corrosion resistance, and excellent erosion resistance and brazeability.