6.1 The diameter of the casting grinding ball is measured by a tool with an accuracy of not less than 0.01 mm. 6.2 The analysis method of the chemical composition should be according with the standards of GB/T 223. 3, GB/T 223. 4, GB/T 223.11, GB/T 223. 18, GB/T 223. 23, GB/T 223. 26, GB/T 223. 28, GB/T 223. 60, GB/T 223. 63, GB/T 223. 67.GB/T, 69 and GB/T 223. 72. Spectral analysis, x-ray analysis and other analytical methods can also be used.
View More →According to the data of the international iron and Steel Association, the global iron ore production increased significantly after 2000. In 2009, affected by the financial crisis, the global iron ore production decreased to 1.59 billion tons for the first time after seven consecutive years of growth. Except for a few countries such as Australia and South Africa, iron ore production in most countries fell. After 2010, with the gradual economic recovery, the global iron ore production resumed to rise. In 2011, the global iron ore output reached a record, reaching 1.957 billion tons. However, in 2012, affected by the fluctuation of iron ore price, the global iron ore production fell for the first time after the impact of the financial crisis in 2009, to 1.904 billion tons. Since 2010, it has basically maintained an annual output of about 2 billion tons. At the end of 2015, the global iron ore output was 2.006 billion tons. In the past two years, it has maintained an upward trend, reaching 2.116 billion tons in 2016 and 2.163 billion tons in 2017.
View More →Casting ball is a kind of grinding ball,which is produced by melting, pouring, forming, etc. This kind of grinding balls are widely used in mining, cement plant, power station. Here Dexin mainly introduce the classification of cast grinding balls according to chemical composition. Chrome Alloy Grinding Ball can be classed for 11 types.
View More →7.INSPECTION PROVISIONS 7.1 The casting grinding ball shall be inspected by the supplier’s quality inspection department.
View More →The chart mainly introduce the process about casting alloy steel balls
View More →Falling-balls test to check the impact fatigue of the grinding balls (Hereinafter referred to falling ball test), under the laboratory condition, simulated the impact process for the grinding balls in the ball mill. Impact times counted by the counter. Impact failure time shows the grinding balls working life in such condition.
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