Cause Analysis and Countermeasures of Bubbles in Hot-rolled Stainless Steel Composite Plate
JIN Jianbing
Abstract：In view of the bubble problem in hot-rolled stainless steel composite plate, normal plates in ultrasonic test and abnormal plates in ultrasonic test produced by different processes were sampled for metallographic analysis. The results showed that the combined surface of the composite plate produced with high start rolling temperature and large compression ratio has few bubbles. The bubbles are associated with isolating agent drying time and the vacuum degree, rolling temperature and compression ratio of composite billet. By increasing the vacuum degree and compression ratio and ensuring the composite billet heating uniformity, the bubbles can be detected by benchmark sensitivity ultrasound were basically eliminated.
Keywords：stainless steel composite platebubblevacuumcompression ratio
Publication Date：2014-11-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 20-22 )