High carbon high alloy steel wear-resisting ball and manufacturing method thereof
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A high-alloy steel and manufacturing method technology, applied in the field of wear-resistant materials, to achieve high impact resistance and good wear resistance, improve production efficiency, and save limited resources.
Inactive Publication Date: 2013-04-03
MAANSHAN HENGDA WEAR RESISTANT MATERIALS
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[0003] The object of the present invention is to provide a high-carbon high-alloy steel wear-resistant ball to solve the problems of poor impact toughness, wear resistance and corrosion resistance of the grinding ball and its manufacturing method
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[0015] The weight percentage of each chemical composition in the high carbon and high alloy steel wear-resistant ball is: C 1.0-1.4%, Si 1.6-2.2%, Mn 1.0-1.2%, Cr 8.5-9.5%, Mo 1.2-1.5%, Cu 0.5- 1.0%, V 0.5-0.8%, Ti 0.15-0.3%, B 0.08-0.12%, Ce 0.05-0.08%, Y 0.02-0.04%, Nd 0.02-0.03%, P≤0.05%, S≤0.05%, remainder The amount is Fe.
[0016] A method for manufacturing a high-carbon high-alloy steel wear-resistant ball, comprising the following steps:
[0017] (1) Use an intermediate frequency induction furnace for smelting, add pig iron, scrap steel, high-carbon ferrochrome, ferromanganese, ferrovanadium, electrolytic copper and other furnace materials according to the weight ratio of the above chemical components, and heat up. When the temperature of molten steel reaches 1560 ° C, take a sample Carry out chemical analysis to control each chemical composition within the specified range; when the temperature reaches 1620°C, deoxidize by inserting aluminum;
[0018] ...
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Abstract
The invention discloses a high carbon high alloy steel wear-resisting ball which comprises the chemical components by weight percentage as follows: 1.0-1.4% of C, 1.6-2.2% of Si, 1.0-1.2% of Mn, 8.5-9.5% of Cr, 1.2-1.5% of Mo, 0.5-1.0% of Cu, 0.5-0.8% of V, 0.15-0.3% of Ti, 0.08-0.12% of B, 0.05-0.08% of Ce, 0.02-0.04% of Y, 0.02-0.03% of Nd, P greater than or equal to 0.05%, S greater than or equal to 0.05%, and the balance of Fe. According to the invention, the high carbon high alloy steel wear-resisting ball which uses Si, Mn and Cr as main alloy elements and where an appropriate amount of Mo, V, Ti, B, Cu and rare earth are added is prepared by optimizing material formula, regulating the casting and melting process and combining a reasonable thermal processing method. The ball and the method have the characteristics of high hardness, high tenacity, high impact resistance, good wear resistance and the like.
Description
technical field [0001] The invention relates to a high-carbon high-alloy steel wear-resistant ball and a manufacturing method thereof, belonging to the technical field of wear-resistant materials. Background technique [0002] Ball mill is the main equipment for the production and processing of powder materials in metallurgical mines, building materials, cement, power chemical industry and other industries. During the working process of ball mill, its grinding ball is used as the end product, which belongs to the main wearable parts. Its usage is large and has a great impact on the cost of use. has always attracted people's attention. With the development of industry, various large-scale ball mills are increasing year by year, and the consumption of grinding balls is also increasing significantly. This not only consumes a large amount of iron and steel materials, but also a large amount of iron powder enters the boiler, corrodes the boiler parts and reduces its life. At p...
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