| 摘要 |
1,217,113. Jointing by rolling; making composite plates. VEREINIGTE METALLWERKE RANSHOFEN-BERNDORF A.G. 22 April, 1969 [22 April, 1968], No. 20541/69. Headings B3A and B3M. A reinforced plate is made by roll bonding metal sections 3 to metal sheets 5, the sections being supported by a member 2 of harder material during rolling. Two plates may be rolled simultaneously using a common member 2, Fig. 2, or sections may be bonded between a pair of sheets to form a sandwich plate. The member 2 is removed from the assembly after rolling. The gaps 15 in the member 2 can be shaped at their edges or provided with ejectors 16, Fig. 8, to help in removing the member from the assembly. The sheets and sections may be of different aluminium alloys which are heated to between 450‹ and 500‹ C. The member 2 may be of steel which is preheated to 300-400‹ C., a stop-weld material such as graphite being used to prevent adhesion between the member and rolled plate. |
