发明名称 |
Apparatus for producing a hot-formed product |
摘要 |
What is disclosed herein is an apparatus for producing a hot-formed product from a cast metal without homogenizing of the cast metal between a casting means and a hot-forming means. The apparatus includes a conditioning means for reducing the cross-sectional area of the cast metal with a single compression by at least 36% as the cast metal passes at substantially hot-forming temperature between the casting means and the hot-forming means. The reduction of the cross-sectional area of the cast metal by at least 36% substantially destroys the as cast dendritic structure of the cast metal prior to the cast metal being hot-formed in the hot-forming means and results in hot-forming being achieved without the splitting and cracking of the cast metal which would otherwise occur in the absence of conventional homogenizing. The conditioning means is disclosed as being either a separate means positioned between the casting means and the hot-forming means or a part of the hot-forming means arranged to accomplish a reduction of at least 36% as the initial step in the hot-forming of the cast metal.
|
申请公布号 |
US4129170(A) |
申请公布日期 |
1978.12.12 |
申请号 |
US19770800070 |
申请日期 |
1977.05.24 |
申请人 |
SOUTHWIRE COMPANY |
发明人 |
COFER, DANIEL B.;WARD, GEORGE C.;PROCTOR, DALE D. |
分类号 |
B21B1/46;B21B3/00;(IPC1-7):B22D11/12 |
主分类号 |
B21B1/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|