公开(公告)号：EP0941471A1

公开(公告)日：1999-09-15

申请号：EP97948081.0

申请日：1997-12-04

申请人： SinterCast AB

发明人： SHAO, Sten, SinterCast Technologies AB ,  HOLLINGER, Bertil, SinterCast Technologies AB

IPC分类号： G01N25 ,  B22D1 ,  B22D2 ,  C21C1 ,  C21C5 ,  C22C33 ,  G01N33

CPC分类号： C21C1/08 ,  B22D2/00 ,  C21C5/4673 ,  G01N25/04 ,  G01N33/206

摘要： The present invention relates to a method for predicting the microstructure in which a certain cast iron melt will solidify comprising the steps of: a) taking a sample of the cast iron melt having a predetermined weight W; b) adding the sample to a sample vessel containing an amount of a neutralizing agent, preferably tellurium, which is sufficient to change an amount W of molten grey cast iron to white iron; c) recording a cooling curve in the centre of the so-obtained treated iron sample; d) determining the local maximum value Te(max) of the cooling curve obtained in step c); and e) predicting whether the cast iron melt will solidify as SGI, CGI, flake patchy or grey cast iron by using the information obtained in step d).