Stud roller sleeve material steel of high-pressure roller press
A high-pressure roller and roller sleeve technology, which is applied in the field of roller sleeve materials, can solve the problems of cost increase, stud peeling and pitting, stud peeling and scrapping, etc., and achieve the effects of low maintenance cost, long service life and enhanced wear resistance
Inactive Publication Date: 2021-10-26
石钢京诚装备技术有限公司
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Problems solved by technology
[0007] (2) The wear resistance of the roller sleeve of this material is poor. Although the powder of the roller press mainly depends on the cemented carbide nails, the gap between the nails is all the body of the roller sleeve, so the body also bears the extrusion and grinding of the powder. If the time is long, the base body of the roller sleeve will be worn off by the powder material, and peeling pits will occur locally around the stud, which will eventually cause the stud to peel off and be scrapped, and the cost will increase greatly
Method used
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Embodiment 1－8
[0035] Embodiments 1-8: The composition and performance of the stud roller sleeve material steel of the high-pressure roller press are as follows.
[0036] (1) Chemical composition: see Table 2 for the specific chemical composition of each embodiment.
[0037] Table 2: Chemical composition (wt%) of each embodiment
[0038] Example 1 2 3 4 5 6 7 8 C 0.42 0.46 0.52 0.40 0.44 0.48 0.55 0.47 Si 0.55 0.55 0.76 0.69 0.90 0.82 0.62 0.50 mn 0.80 0.90 0.70 0.83 0.78 1.00 0.92 0.87 P 0.012 0.012 0.013 0.014 0.012 0.011 0.012 0.010 S 0.008 0.008 0.009 0.006 0.010 0.009 0.011 0.007 Cr 4.0 5.0 3.2 4.6 2.5 4.2 2.8 3.9 Mo 0.50 0.40 0.62 0.46 0.73 0.68 0.55 0.80 Ni 0.30 0.50 0.62 0.47 0.80 1.0 0.93 0.74 V 0.09 0.08 0.15 0.12 0.12 0.13 0.06 0.10 H / ppm 1.2 1.2 1.3 1.5 1.4 1.2 1.0 1.1 0 / ppm 45 45 36 42 43 32 44 40 N / ppm 80 70 74 83 86...
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Abstract
The invention discloses stud roller sleeve material steel of a high-pressure roller press. The stud roller sleeve material steel comprises the following components in percentage by mass: 0.40-0.55% of C, 0.50-0.90% of Si, 0.70-1.00% of Mn, less than 0.015% of P, less than 0.012% of S, 2.5-5.0% of Cr, 0.4-0.8% of Mo, not greater than 1.0% of Ni, not greater than 0.15% of V, not greater than 1.5ppm of H, not greater than 45ppm of O, not greater than 90ppm of N, and the balance Fe and inevitable impurities. The material is better in hardenability and tempering stability, is higher in toughness, contains more high-hardness carbides, and can show excellent wear resistance and stripping resistance in use. A stud roller sleeve manufactured by the steel is excellent in wear resistance and stripping resistance, can effectively solve the stud stripping and roller sleeve surface layer stripping problems, and has such characteristics as long service life and low maintenance cost.
Description
[0001] This application is a divisional application with an application date of August 29, 2018, an application number of 201810997432.2, and an invention title of "A Steel Stud Roller Cover Material for a High-Pressure Roller Press". technical field [0002] The invention relates to a roller cover material, in particular to a stud roller cover material steel of a high-pressure rolling machine. Background technique [0003] The roller press was born in Germany in the mid-1980s. It is a new type of high-efficiency and energy-saving grinding equipment. It works based on the principle of material layer crushing. Due to its high pressure, slow speed, full material, and material layer crushing It is widely used in the grinding operation of materials in cement, metallurgy, ore and other industries. Compared with the traditional ball mill system, it has remarkable high efficiency and energy saving effect, and is known as a major breakthrough in crushing engineering. In the past, th...
Claims
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IPC IPC(8): C22C38/02C22C38/04C22C38/22C22C38/24C22C38/44C22C38/46C21D8/00B23P15/00
CPCC22C38/02C22C38/04C22C38/22C22C38/24C22C38/44C22C38/46C21D8/005B23P15/00C21D2261/00
Inventor 杨万彪
Owner 石钢京诚装备技术有限公司