发明名称 |
METHOD FOR MANUFACTURING A METAL ASSEMBLY HAVING A SHEET OF THERMALLY TREATED ALUMINUM TO OBTAIN ALPHA ALUMINA AND ANOTHER SHEET HAVING SURFACE IRREGULARITIES THAT BECOME EMBEDDED IN SAID SURFACE DURING ROLL BONDING |
摘要 |
A method for manufacturing a metal assembly including an aluminum sheet and at least one metal sheet. An aluminum sheet is treated by heating to a temperature of between 80% and 100% of the melting temperature of the material of which it is comprised for a sufficiently long duration to create and stabilize an alpha alumina layer at the surface of the aluminum sheet. The sheet is then cooled. A metal sheet having a ductility less than or equal to the ductility of the alumimum sheet after cooling is provided, which has surface irregularities having a depth greater than or equal to the thickness of the alpha alumina layer. The aluminum sheet and the metal sheet are roll bonded in a rolling mill to produce the metal assembly, wherein the rolling mill includes at least one cylinder, the outer rolling surface of which is provided with raised portions. |
申请公布号 |
EP2544890(A1) |
申请公布日期 |
2013.01.16 |
申请号 |
EP20110707438 |
申请日期 |
2011.03.11 |
申请人 |
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.);CNAM-CONSERVATOIRE NATIONAL DES ARTS ET METIERS;ECOLE NORMALE SUPERIEURE DE CACHAN |
发明人 |
PREVOND, LAURENT;COLLARD, NICOLAS;CAPLAIN, RENAUD;FRANCOIS, PIERRE |
分类号 |
B32B15/01;B21B1/22;B21D47/04;B21D53/04;B23P15/26;B32B3/30;C22F1/04;F28D1/00 |
主分类号 |
B32B15/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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