| 发明名称 |
METHOD OF REPAIRING DEFECTS IN CAST IRON WORKPIECES, AND A METHOD OF CONNECTING CAST IRON WORKPIECES |
| 摘要 |
A method of repairing defect in cast iron workpiece, including: machining the workpiece in the area of the defect to remove the defective material and form a chamber opening at a surface of the workpiece; anchoring a receptacle to the workpiece above the chamber (2), the receptacle is provided with an orifice in communication with the chamber; adding molten iron (4) into the receptacle so that it at least part of it flows into the chamber; adding slagging agent (5) into the receptacle; heating the slagging agent and the molten iron with an electrode (6); adding nodulizing agent into the molten iron so as to segregate graphite; and allowing the molten iron and the workpiece to cool down slowly. The above-described technique also has applicability for connecting two cast iron workpieces (11, 12) together. |
| 申请公布号 |
US2015224572(A1) |
申请公布日期 |
2015.08.13 |
| 申请号 |
US201114365795 |
申请日期 |
2011.12.15 |
| 申请人 |
Vestas Wind Systems A/S |
发明人 |
Zhang Hong Wei |
| 分类号 |
B22D19/10;B22D19/04;F01D25/00;B23P6/04;C22C37/04;C22C33/10;B22D19/00;B22D25/02 |
主分类号 |
B22D19/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of repairing a defect in a ductile cast iron workpiece, comprising:
machining the workpiece in the area of the defect to remove the defective material and form a chamber opening at a surface of the workpiece; anchoring a receptacle to the workpiece above the chamber, the receptacle is provided with an orifice in communication with the chamber; adding molten iron into the receptacle so that at least part of it flows into the chamber; adding slagging agent into the receptacle; heating the slagging agent and the molten iron with an electrode; adding nodulizing agent into the molten iron so as to segregate graphite; and allowing the molten iron and the workpiece to cool down slowly. |
| 地址 |
Aarhus N DK |
