ALUMINUM ALLOY FOR HEAT EXCHANGER FINS
    14.
    发明公开
    ALUMINUM ALLOY FOR HEAT EXCHANGER FINS 审中-公开
    铝合金换热器翅片

    公开(公告)号:EP3177748A1

    公开(公告)日:2017-06-14

    申请号:EP15747959.3

    申请日:2015-08-03

    申请人: Novelis, Inc.

    IPC分类号: C22C21/00 C22F1/04 F28F21/08

    摘要: An aluminum alloy fin stock material comprising about 0.9-1.2 wt. % Si, 0.3-0.5 wt. % Fe, 0.20-0.40 wt. % Cu, 1.0-1.5 wt. % Mn, 0-0.1% Mg and 0.0-3.0% Zn, with remainder Al and impurities at ≦̸0.15 wt. %. The aluminum alloy fin stock material is produced in a form of a sheet by a process comprising the steps of direct chill casting an ingot, hot rolling the ingot after the direct chill casting, cold rolling the aluminum alloy to an intermediate thickness, inter-annealing the aluminum alloy cold rolled to an intermediate thickness at a temperature between 200 and 400° C., and cold rolling the material after inter-annealing to achieve % cold work (% CW) of 20 to 40%. The aluminum alloy fin stock material possesses an improved combination of one or more of pre- and/or post-brazes strength, conductivity, sag resistance and corrosion potential. It is useful for fabrication of heat exchanger fins.

    摘要翻译: 一种铝合金翅片原料,其包含约0.9-1.2wt。 %Si,0.3-0.5wt。 %Fe,0.20-0.40wt。 %Cu,1.0-1.5wt。 %的Mn,0-0.1%的Mg和0.0-3.0%的Zn,其余的Al和杂质在< E; 0.15wt。 %。 铝合金散热片坯料通过包括以下步骤的工艺以片材的形式制造:直接冷铸铸锭,直接激冷铸造后热轧该铸锭,将该铝合金冷轧至中间厚度,中间退火 铝合金在200-400℃的温度下冷轧至中间厚度,并且在中间退火之后冷轧该材料以实现20-40%的%冷加工(CW%)。 铝合金翅片原料具有改进的钎焊前和/或钎焊后强度,导电性,抗流挂性和腐蚀电位中的一种或多种的组合。 它用于制造换热器翅片。

    HIGH STRENGTH ALUMINUM ALLOY FIN STOCK FOR HEAT EXCHANGER
    15.
    发明公开
    HIGH STRENGTH ALUMINUM ALLOY FIN STOCK FOR HEAT EXCHANGER 审中-公开
    用于换热器的高强度铝合金翅片

    公开(公告)号:EP3030685A1

    公开(公告)日:2016-06-15

    申请号:EP14752757.6

    申请日:2014-08-07

    摘要: The present invention provides an aluminum alloy fin stock material with higher strength, and improved sag resistance for use in heat exchangers, such as automotive heat exchangers. The aluminum alloy fin stock material is produced from an aluminum alloy comprising about 0.8-1.4 wt % Si, 0.4-0.8 wt % Fe, 0.05-0.4 wt % Cu, 1.2-1.7 wt % Mn and 1.20-2.3 wt % Zn, with the remainder as Al. The aluminum alloy fin stock material is made by a process comprising direct chill casting the aluminum alloy into an ingot, preheating the ingot, hot rolling the preheated ingot, cold rolling the ingot and inter-annealing at a temperature of 275-400° C. After inter-annealing, the aluminum alloy fin stock material is a cold rolled in a final cold rolling step to achieve % cold work (% CW) of 20-35%.

    摘要翻译: 本发明提供一种具有较高强度的铝合金散热片坯料,并改善了用于热交换器如汽车热交换器中的抗流挂性。 该铝合金散热片坯料由包含约0.8-1.4重量%Si,0.4-0.8重量%Fe,0.05-0.4重量%Cu,1.2-1.7重量%Mn和1.20-2.3重量%Zn的铝合金制成, 其余的为Al。 铝合金翅片原材料通过以下方法制造,该方法包括将铝合金直接冷铸成锭,预热锭,热轧预热的锭,冷轧锭并在275-400℃的温度下进行中间退火。 在退火过程中,铝合金翅片原材料在最终冷轧步骤中被冷轧以实现20-35%的%冷加工(%CW)。