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Study of the Hardening-toughening Heat Treatment Process of High Chrome Cast Iron Grinding Balls (1)
/in Grinding media balls, Heat Treatment Process /by Sara WuAbstract： The influence of quenching-tempering heat treatment, conventional austempering heat treatment and multi-stage austenitizing austempering heat treatment on the microstructure and property of high chrome cast iron grinding balls were comparatively investigated. The results show that the impact toughness and impact fatigue resistance of the grinding balls are higher after austempering. The austempering heat treatment […]
Heat treatment process of the high chrome cast iron Grinding Media
/in Grinding media balls, Heat Treatment Process /by Sara WuGuo Zhi-hong, Wei Ying-hui, Wang Hong-wei (Taiyuan University of Technology, materials science, Taiyuan, Shanxi) ABSTRACT: A heat treatment process of high chromium cast iron grinding media with trace alloying elements Mo, V, NB was studied. The heat treatment processes of quenching at 980 °C, tempering at 400 °C and 600 °C was adopted. The microstructure […]
Development of high carbon chromium GCr15 grinding ball with high wear resistance
/in Grinding media balls /by Sara WuIntroduction As a kind of grinding body, grinding ball requires high hardness, the higher the hardness, the better the wear resistance. From the carbon content of the grinding ball: With the increase of carbon content of the grinding ball, the higher the hardness of the grinding ball, the greater the wear resistance, when the carbon […]
POINTS IN SOLIDIFICATION PROCESS OF GRAY CAST IRON AND NODULAR CAST IRON (6)
/in Castings /by Sara WuEUTECTIC TRANSFORMATION OF NODULAR CAST IRON The eutectic transformation of spheroidal graphite cast iron is not as obvious as that of gray iron, although graphite is first precipitated and austenite is then precipitated, graphite plays a less dominant role in the Eutectic Solidification process coexisting and coexisting under conditions of common and liquid contact.
SOLIDIFICATION PROCESS OF GRAY CAST IRON AND NODULAR CAST IRON (5)
/in Uncategorized /by Sara WuThird. 3. EUTECTIC TRANSFORMATION AND NUCLEATION OF CAST IRON Both gray cast iron and ductile iron are EUTECTIC FE-C alloys, and eutectic transformation is the most important step in the solidification process. Although primary austenite is precipitated in hypoeutectic cast iron, eutectic cast iron, and hypereutectic cast iron, however, the eutectic transformation does not rely […]