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The aluminum alloy extrusion tube for the high intensity heat exchanger which is superior in extrusion Characteristic
The aluminum alloy extrusion tube for the high intensity heat exchanger which is superior in extrusion Characteristic
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机译：高强度热交换器用铝合金挤压管，挤压性能优异
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摘要
PPROBLEM TO BE SOLVED: To provide an aluminum alloy extruded tube for a heat exchanger which has excellent extrudability, and also has high strength after brazing. PSOLUTION: In the extruded tube for a heat exchanger having a composition containing 0.8 to 2.0% Si, 0.05 to 0.5% Fe, 0.05 to 0.5% Cu and 0.005 to 0.05% Ti, and in which the content of Mn is regulated to 1% and the content of Mg is regulated to 0.1%, and the balance Al with inevitable impurities, the compression deformation resistance (test temperature: 520°C, a strain rate: 1sSP-1/SPand stress at 25% compression) of the billet subjected to homogenizing treatment before extrusion is 15 to 20 MPa, and also, the tensile strength after an extruded tube hot-extruded from the billet is subjected to heating treatment at 600°C is 90 to 150 MPa. PCOPYRIGHT: (C)2010,JPO&INPIT
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