Abstract:
Aluminum alloy material containing Si: 1.0 to 5.0 mass % and Fe: 0.01 to 2.0 mass % with balance being Al and inevitable impurities, wherein 250 pcs/mm2 or more to 7×105 pcs/mm2 or less of Si-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 μm are present in a cross-section of the aluminum alloy material, while 100 pcs/mm2 or more to 7×105 pcs/mm2 or less of Al-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 μm are present in a cross-section of the aluminum alloy material. An aluminum alloy structure is manufactured by bonding two or more members in vacuum or a non-oxidizing atmosphere at temperature at which a ratio of a mass of a liquid phase generated in the aluminum alloy material to a total mass of the aluminum alloy material is 5% or more and 35% or less.
Abstract:
An aluminum alloy brazing sheet which is thin but has excellent weldability and post-brazing strength. An aluminum alloy brazing sheet having a core material comprising an aluminum alloy, an Al—Si based brazing filler metal clad on one surface of the core material and a sacrificial anode material clad on the other surface of the core material: wherein the core material comprises certain amounts of Si, Fe, Cu and Mn and certain amounts of one, two or more selected from Ti, Zr, Cr and V; the sacrificial anode material comprises certain amounts of Si, Fe, Mg and Zn; in a cross section parallel to the longitudinal direction and along the thickness direction, the interface between the core material and the sacrificial anode material includes 300 pieces/mm or less of an Al—Mg—Cu based intermetallic compound; and the core material and the sacrificial anode material have an unrecrystallized structure.
Abstract:
A method for producing an aluminum alloy clad material having a core material and a sacrificial anode material clad on at least one surface of the core material, wherein the core material comprises an aluminum alloy comprising 0.050 to 1.5 mass % (referred to as “%” below) Si, 0.050 to 2.0% Fe and 0.50 to 2.00% Mn; the sacrificial anode material includes an aluminum alloy containing 0.50 to 8.00% Zn, 0.05 to 1.50% Si and 0.050 to 2.00% Fe; the grain size of the sacrificial anode material is 60 μm or more; and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction; a production method thereof; and a heat exchanger using the clad.
Abstract:
This cladded aluminum-alloy material is provided with: an aluminum alloy core material, a coating material used to clad both surfaces of the core material; and a brazing material used to clad both of the coating material surfaces, or one of the coating material surfaces which is not at the core material side. The core material, the coating material and brazing filler material have described alloy compositions. The crystal grain size of the coating material before brazing heating is at least 60 μm. In a cross section of the core material in the rolling direction before brazing heating, when R1 (μm) represents the crystal grain size in the plate thickness direction, and R2 (μm) represents the crystal grain size in the rolling direction, R1/R2 is not more than 0.50. As a result, the cladded aluminum-alloy material exhibits excellent mouldability, and the coating material after brazing heating exhibits excellent corrosion resistance.
Abstract:
A heat exchanger aluminum alloy fin material, comprising Si 0.5 to 1.5 mass %; Fe 0.1 to 1.0 mass %; Mn 0.8 to 2.2 mass %; Zn 0.4 to 2.5 mass %; and further at least one selected from Cu, Ti, Zr, Cr, and V each in 0.02 to 0.3 mass %, with the balance being Al and unavoidable impurities, wherein a metallographic microstructure before braze-heating is such that a density of second phase particles having a circle-equivalent diameter of less than 0.1 μm is less than 1×107 particles/mm2, and that a density of second phase particles having a circle-equivalent diameter of 0.1 μm or more is 5×104 particles/mm2 or more, wherein a tensile strength before braze-heating, TSB, a tensile strength after braze-heating, TSA, and a sheet thickness of the fin material, t, satisfy: 0.4≦(TSB−TSA)/t≦2.1, and wherein the sheet thickness is 150 μm or less.
Abstract translation:一种热交换器铝合金翅片材料,其包含0.5〜1.5质量%的Si; Fe 0.1〜1.0质量% Mn 0.8〜2.2质量% Zn 0.4〜2.5质量% 进一步选自Cu,Ti,Zr,Cr和V中的至少一种为0.02〜0.3质量%,余量为Al和不可避免的杂质,其中钎焊前的金相组织使得第二相的密度 圆当量直径小于0.1μm的颗粒小于1×10 7个/ mm 2,圆当量直径为0.1μm以上的第二相粒子的密度为5×10 4个/ mm 2以上 其中,钎焊加热前的拉伸强度,TSB,钎焊后的拉伸强度,TSA,翅片材料的板厚t满足:0.4≤(TSB-TSA)/t≤2.1,其中, 片材厚度为150μm以下。
Abstract:
A highly corrosion resistant and highly formable aluminum-alloy clad material, a method for producing the same, a heat exchanger using the same and a method for producing the same are shown. The present aluminum-alloy clad material has an aluminum alloy core material, an intermediate layer material clad on one surface of the core material and a brazing filler metal clad on the surface of the intermediate layer material that is not on the core material side, wherein a crystal grain size of the intermediate layer material before brazing heating is 60 μm or more, and in a cross section of the core material in a rolling direction before brazing heating, when R1 (μm) represents the crystal grain size in a plate thickness direction, and R2 (μm) represents the crystal grain size in the rolling direction, R1/R2 is 0.30 or less.
Abstract:
A highly corrosion resistant and highly formable cladded aluminum-alloy material, a method for producing the same, a heat exchanger using the same and a method for producing the same are shown. The present cladded aluminum-alloy material has an aluminum alloy core material, an intermediate layer material clad on one surface of the core material and a brazing filler metal clad on the intermediate layer material surface which is not at the core material side, wherein a crystal grain size of the intermediate layer material before brazing heating is 60 μm or more, and in a cross section of the core material in a rolling direction before brazing heating, when R1 (μm) represents the crystal grain size in a plate thickness direction, and R2 (μm) represents the crystal grain size in the rolling direction, R1/R2 is 0.30 or less.
Abstract:
An aluminum alloy clad material having a core material and a sacrificial anode material clad on at least one surface of the core material, wherein the core material comprises an aluminum alloy comprising 0.050 to 1.5 mass % (referred to as “%” below) Si, 0.050 to 2.0% Fe and 0.50 to 2.00% Mn; the sacrificial anode material includes an aluminum alloy containing 0.50 to 8.00% Zn, 0.05 to 1.50% Si and 0.050 to 2.00% Fe; the grain size of the sacrificial anode material is 60 μm or more; and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction; a production method thereof; and a heat exchanger using the clad.
Abstract:
An aluminum alloy fin material for heat exchangers, containing 0.5 to 1.5 mass % of Si; more than 1.0 mass % but not more than 2.0 mass % of Fe; 0.4 to 1.0 mass % of Mn; and 0.4 to 1.0 mass % of Zn, with the balance being Al and unavoidable impurities, wherein a metallographic microstructure before braze-heating is such that a density of second phase particles having a circle-equivalent diameter of less than 0.1 μm is less than 1×107 particles/mm2, and that a density of second phase particles having a circle-equivalent diameter of 0.1 μm or more is 1×105 particles/mm2 or more, wherein a tensile strength before braze-heating, TSB (N/mm2), a tensile strength after braze-heating, TSA (N/mm2), and a fin sheet thickness, t (μm), satisfy: 0.4≦(TSB−TSA)/t≦2.1, and wherein the sheet thickness is 150 μm or less; and a method of producing the same.
Abstract translation:一种用于热交换器的铝合金翅片材料,含有0.5至1.5质量%的Si; 大于1.0质量%但不超过2.0质量%的Fe; 0.4〜1.0质量%的Mn; 和0.4〜1.0质量%的Zn,余量为Al和不可避免的杂质,其中钎焊前的金相组织使得圆当量直径小于0.1μm的第二相粒子的密度小于1 ×107个/ mm 2,圆当量直径为0.1μm以上的第二相粒子的密度为1×10 5个/ mm 2以上,钎焊加热前的拉伸强度,TSB(N / mm2) ,钎焊后的拉伸强度,TSA(N / mm2),翅片片厚度t(μm)满足:0.4≦̸(TSB-TSA)/ t≦̸ 2.1,其中片材厚度为150μm 或更少; 及其制造方法。