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    • 2. 发明申请
    • ALUMINUM PIPE AND PROCESS FOR PRODUCING SAME
    • 铝管及其制造方法
    • WO2004061147A1
    • 2004-07-22
    • PCT/JP2003/016921
    • 2003-12-26
    • SHOWA DENKO K.K.TAKAHASHI, Kazuyuki
    • TAKAHASHI, Kazuyuki
    • C22F1/04
    • F28F21/084C22C21/00C22F1/04F28F9/0246F28F9/0256
    • An inlet pipe 6 and an outlet pipe 7 for use in condensers are made from an alloy containing 0.90 to 1.50 mass % of Mn, and the balance Al and inevitable impurities. The inlet pipe 6 and the outlet pipe have an electrical conductivity of 30 to 43% IACS. The inlet pipe 6 and an outlet pipe 7 are each produced from a pipe blank made from an alloy containing 0.90 to 1.50 mass % of Mn, and the balance Al and inevitable impurities, by holding the pipe blank heated at 550 to 600 C in the atmosphere or in an inert gas atmosphere for 10 to 600 minutes and thereafter cooling the pipe blank. The inlet pipe 6 and the outlet pipe 7 can be produced easily at a low cost and have satisfactory resistance to pitting corrosion.
    • 用于冷凝器的入口管6和出口管7由含有0.90〜1.50质量%的Mn,余量为Al和不可避免的杂质的合金制成。 入口管6和出口管的导电率为30〜43%IACS。 入口管6和出口管7均由含有0.90〜1.50质量%的Mn,余量为Al和不可避免的杂质的合金制成,通过将加热至550〜600℃的管坯保持在 气氛或惰性气体气氛中10〜600分钟,然后冷却管坯。 入口管6和出口管7可以以低成本容易地制造并具有令人满意的耐点腐蚀性。