专利名称：ALUMINIUM ALLOY CONTAINING MAGNESIUM AND SILICON马丁路德金名言
发明人：TUNDAL, Ulf,ODDVIN, Reiso
weep申请号：EP99914454.6
不喜欢的英文
铃儿响叮当英文歌曲申请日：19990212
公开号：EP1155156A1德瑞姆心理培训
公开日：
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20011121
感叹句句型专利内容由知识产权出版社提供
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abn摘要：The prent invention relates to a treatment process of aluminium alloy containing 0.5 to 2.5 percent by weight of alloying mixture bad on magnesium and silicon wherein the molar ratio of Mg/Si ranges within 0.70 and 1.25, the amount of Si being approximately 1/3 of the amount of iron, mangane and chromium prent in the alloy in percent by weight and the balance being made up of aluminium, unavoidable impurities and other alloying agents, which alloy after cooling has been submitted to homogenizing, preheating before extrusion, extrusion and ageing, which ageing takes place at temperatures between 160 and 220 degC, wherein the treatment process of the prent invention is characterized in that the ageing after cooling of the extended product is performed as a dual rate ageing operation, including a first stage in which the extrusion is heated with a heating rate at least 100 degC/hour to a temperature between 100 to 170 degC, a cond stage in which the extrusion is heated with a heating rate between 5 and 50 degC/hour to the final hold temperature between 160 and 220 degC wherein the total ageing cycle is performed within a period of 3 to 24 hours.
申请人：NORSK HYDRO ASA
dawn是什么意思地址：Bygdoy Allé 2 0240 Oslo NO
国籍：NO
代理机构：Bleukx, Lucas Lodewijk M.更多信息请下载全文后查看
