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一、前言铝砷高强度黄铜管(日本住友轻金属工业公司的冷凝器用无缝铝黄铜管)是50多年来一直应用在火力和原子能发电站和船舶上的冷凝器的优秀材料,但随着机器的大型化,由于海水的腐蚀,特别是海水受污染引起的腐蚀以及海生物附着所引起的局部侵蚀,所以对材料有了更高的要求。日本住友轻金属工业公司解决上述问题的方法,是利用钛具有优秀的耐海水腐蚀以及耐侵蚀性的特点,研制出一种外侧使用铝砷高强度黄铜管,里面使用薄壁钛管的双层管。
I. INTRODUCTION Aluminum-arsenic high-strength brass (a seamless aluminum-brass tube for condensers of Sumitomo Light Metal Industries, Japan) is an excellent material for condensers that have been used in firepower and nuclear power plants and ships for more than 50 years. However, Due to the large size of the machine, higher requirements are imposed on the material due to the corrosion of the sea water, especially the corrosion caused by the pollution of the sea water and the local erosion caused by the attachment of marine organisms. Sumitomo Light Metal Industry Co., Ltd. Japan to solve the above problem is the use of titanium has excellent resistance to seawater corrosion and corrosion resistance, developed a high-strength aluminum-aluminum outer brass tube, which uses thin-walled titanium tube double tube.