The Development of China railway vehicle steel casting production has been reviewed. Much progress has been made, especially in recent ten years, resulting in a improvement of casting quality and a quick increase of casting production volumes. The ZG230-450 carbon steel once widely used for a long period has been replaced by low alloy steels, such as Grade B, Grade C and Grade E, which meet the requirements of AAR-M.201 specification. The LF refining process technology is employed into some foundries in order to improve the quality of metals further. The conventional CO2-sodium silicate sand molding process, will be out of data soon since many new processes, such as ester-hardening sodium silicate sand molding process, 'vacuum' molding process, have been adopted to produce railway vehicle steel castings successfully and several production lines are being built. Some problems presented in the foundries are pointed out here. The measurements should be taken and the further development direction is suggested.
Developement of China railway vehicle steel castings
Die Entwicklung von Stahlgussteilen für die Eisenbahn in China
Titel chinesisch
Zhuzao (Foundry) ; 54 , 5 ; 415-419
2005
5 Seiten, 2 Bilder, 3 Tabellen, 5 Quellen
Article (Journal)
Unknown
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