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Casting Production of Chrome Series Cast Iron Grinding Balls (1)
/in Grinding Media Balls /by Hexin AfricaZHANG Zhou1，LUO You-gen2，YING Gen-peng3 （1.Hangzhou Xuelin Science- Technology Development Service, Hangzhou 310012, China; 2. Longyou Hengshan Steel Ball Factory, Longyou 324406, China; 3. Hangzhou Aobao Chemical Co. Ltd., Hangzhou 310012, China） Abstract：A brief introduction was made to the chemical compositions, matrix structure, mechanical properties, and melting process of chromium series cast iron grinding balls. The […]
Study on the application of high chrome grinding balls instead of low chrome grinding balls in molybdenum ore (2)
/in Grinding Media Balls /by Hexin Africa2.1 High and low chrome balls contrast The production practice shows that the strength and wear resistance of the low chrome grinding balls are low and easy to be broken, which makes the broken ball rate and the out-of-round rate higher and has a particular influence on the grinding effect. The surface of high chrome […]
Study on the application of high chrome grinding balls instead of low chrome grinding balls in molybdenum ore (1)
/in Grinding Media Balls /by Hexin AfricaAbstract: To solve the problem that the ball unit consumption is too high and the particle size of grinding products shifts to coarse size after the reformation of the grinding system and the optimization of the ball diameter ratio in a molybdenum concentrator. The comparison of chemical composition and mechanical properties between High Chrome Grinding […]
Nine factors of casting porosity formation and 5 improvement measures of process (2)
/in Castings /by Hexin Africa1) The technological measures to prevent subcutaneous stomata mainly include: 2) Desulfurization treatment. The so-called desulphurization, that is, as far as possible, the sulfur in the molten iron is transferred to the slag, and then eliminated, the less FeS in the molten iron, the higher the desulphurization efficiency, appropriately increasing the basicity of the desulphurized […]
Nine factors of casting porosity formation and 5 improvement measures of process (1)
/in Castings /by Hexin AfricaThe subcutaneous blowhole is a common casting defect in wet-type Ductile Iron Castings, so it has a prevalent deficiency and is especially sensitive to thin-walled castings. The reason is that the thin-walled castings have a fast solidification speed. The gas can not form bubbles in time, and the thick-walled castings have a slow solidification speed […]