A yin and yang -type wear -resistant steel ball
A wear-resistant steel, yin-yang type technology, applied in the field of wear-resistant steel balls, can solve the problems of waste of resources, limited use occasions, unsatisfactory, etc., and achieve the effect of improving comprehensive performance and wide application range
Inactive Publication Date: 2017-12-22
NINGGUO ZHENGXING WEAR RESISTANT MATERIALS
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Problems solved by technology
[0003] After years of research and practice, it has been shown that the high chromium cast iron grinding ball is designed too large due to the composition of the material, which increases the cost and wastes resources
In order to achieve an ideal match between the toughness and wear resistance of the grinding ball, and to make up for the lack of wear resistance and good toughness of the grinding ball, it must be quenched and tempered at high temperature, but this method is not ideal, and there is generally early deformation of the grinding ball and broken problems
Although the production cost of low-chromium alloy balls is low, because of its high breakage rate and easy loss of roundness, it cannot be guaranteed to meet the working conditions of large-scale mills, so it cannot be used as a replacement product
And the existing wear-resistant steel balls cannot have the performance of high-chromium wear-resistant steel balls and low-chromium wear-resistant steel balls at the same time, and the application occasions are limited
Method used
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Embodiment Construction
[0027] The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing:
[0028] Such as Figure 1-3 As shown, a yin-yang wear-resistant steel ball includes a female hemisphere and a child hemisphere, the female hemisphere is provided with a trapezoidal groove, the child hemisphere is provided with a trapezoidal boss, and the trapezoidal groove is matched with the trapezoidal boss; Alternatively, the female hemisphere is provided with a trapezoidal boss, and the child hemisphere is provided with a trapezoidal groove, and the trapezoidal groove is matched with the trapezoidal boss.
[0029] The method for producing yin and yang wear-resistant steel balls mainly includes the following steps:
[0030] (1) Melting process
[0031] According to the mass percentage of chemical composition: C 2.4~2.8%, Si 0.4~0.7%, Mn 0.3~0.6%, Cr10.0~10.5%, S≤0.008%, P≤0.008%, the rest is Fe, placed in the medium frequency induction H...
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A yin-yang wear-resistant steel ball, which relates to the technical field of wear-resistant steel balls, includes a mother hemisphere and a child hemisphere, the mother hemisphere is provided with a trapezoidal groove, the child hemisphere is provided with a trapezoidal boss, the trapezoidal groove and the trapezoidal The bosses are matched; or, the female hemisphere is provided with a trapezoidal boss, and the child hemisphere is provided with a trapezoidal groove, and the trapezoidal groove is matched with the trapezoidal boss. The beneficial effects of the present invention are: the present invention combines half of the high-chromium wear-resistant steel ball and the low-chromium wear-resistant steel ball into one wear-resistant steel ball to form a yin and yang type wear-resistant steel ball, which improves the comprehensive performance of the wear-resistant steel ball. performance, the application range of wear-resistant steel balls is wider; the invention fills half of the steel balls after wire cutting into a whole steel ball by secondary pouring, avoiding the yin and yang shape obtained by mechanical connection or welding combination The wear-resistant steel ball breaks during use and dislocation occurs.
Description
technical field [0001] The invention relates to the technical field of wear-resistant steel balls, in particular to a yin-yang type wear-resistant steel ball and a production method thereof. Background technique [0002] Under some special conditions, steel balls of special materials are often required to complete the functions required in different environments. The promotion and application of related industries not only promotes the development of steel ball production industry, but also promotes the technological development and technological progress of related industries. [0003] Years of research and practice have shown that the high chromium cast iron grinding ball is designed too large due to the composition of the material, which increases the cost and wastes resources. In order to achieve an ideal match between the toughness and wear resistance of the grinding ball, and to make up for the lack of wear resistance and good toughness of the grinding ball, it must b...
Claims
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IPC IPC(8): C22C38/36C22C38/18C21D9/00B22D19/16
Inventor 李根有
Owner NINGGUO ZHENGXING WEAR RESISTANT MATERIALS