发明名称 |
Anwendung des Sprühkompaktier-Verfahrens zur Verbesserung der Biegewechselfestigkeit von Halbzeug aus Kupferlegierungen |
摘要 |
<p>The invention relates to a process for improving the fatigue strength under reversed bending stresses of semi-finished copper alloy products. In this case, the copper alloy is melted, a preform is produced and the end form is obtained from the preform by usual steps of hot- and cold-forming. In order to improve the fatigue strength under reversed bending stresses as compared with conventionally manufactured semi-finished products, it is proposed according to the invention that the preform is produced by the process of spray-compacting and that a copper alloy is used which contains nitride-forming elements (such as, for example, zirconium, titanium, magnesium, chromium, aluminium, manganese, boron, niobium, tantalum, vanadium) individually or in combination in a concentration range of from 0.001 to 3.0% in total.</p> |
申请公布号 |
DE4201065(C2) |
申请公布日期 |
1994.12.08 |
申请号 |
DE19924201065 |
申请日期 |
1992.01.17 |
申请人 |
WIELAND-WERKE AG, 89079 ULM, DE |
发明人 |
DUERRSCHNABEL, WOLFGANG, DR., 89287 BELLENBERG, DE;BOEGEL, ANDREAS, DR., 89250 SENDEN, DE;STOCK, DIETER, DR., 89165 DIETENHEIM, DE |
分类号 |
B22D23/00;B22F3/115;C22C1/10;C22C9/00;C22F1/08;C23C4/12;(IPC1-7):C22F1/08 |
主分类号 |
B22D23/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|