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Machining method for high-hardness and high-tenacity 65 Mn steel rod of rod mill

A processing method and high hardness technology, applied in the processing of high toughness 65Mn steel bars, in the field of high hardness, can solve the problems of low mechanical properties, large consumption, poor wear resistance, etc., to achieve strong toughness, prolong service life, The effect of high wear resistance

Inactive Publication Date: 2015-12-23
LIUZHOU ZHONGLI JINMING HEAT TREATMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grinding medium of this type of machinery—grinding rod (steel rod) is a consumable of the rod mill. The wear-resistant manganese steel rods commonly used in the market are mainly rolled and formed by steel mills. Their mechanical properties are not high and their wear-resistant effect is extremely good Poor, consumes a lot when in use
The production cost of traditional steel rods due to wear is extremely high, which can no longer meet the development needs of the industry. It is imperative to develop new wear-resistant steel rods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A method for processing high-hardness and high-toughness 65Mn steel rods used in rod mills. The chemical composition of molten steel is selected, in percent by weight: C%: 0.62~0.70, Si%: 0.17~0.37, Mn%: 0.90 ~1.20, S%: ≤0.035, P%: ≤0.035, the rest is Fe, the specific process parameters are: use intermediate frequency furnace for smelting, when smelting to 1650-1720 ℃, add 0.4% to 0.5% of the molten steel weight deoxidizer to deoxidize , and then the power was cut off, and it was cast at a temperature of 1560°C-1600°C.

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PUM

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Abstract

The invention discloses a machining method for a high-hardness and high-tenacity 65 Mn steel rod of a rod mill. Molten steel comprises, by weight, 0.62%-0.70% of C, 0.17%-0.37% of Si, 0.90%-1.20% of Mn, smaller than or equal to 0.035% of S, smaller than or equal to 0.035% of P and the balance Fe. According to specific technological parameters, an intermediate frequency furnace is selected for smelting, when the temperature of 1,650-1,720 DEG C is reached due to smelting, a deoxygenation agent accounting for 0.4%-0.5% of the weight of the molten steel is added for deoxygenation, then power is off, the molten steel is discharged out of the furnace, and casting molding is carried out with the temperature of 1,560 DEG C-1,600 DEG C. According to the machining method for the high-hardness and high-tenacity 65 Mn steel rod of the rod mill, by means of adjustment on the technological parameters and more precious treatment, the obtained 65 Mn steel rod is higher in abrasion resistance and tenacity, and then the service life of the steel rod is prolonged.

Description

technical field [0001] The invention relates to a processing method for a high-hardness and high-toughness 65Mn steel rod used in a rod mill. Background technique [0002] With the rapid development of my country's industry, all walks of life have put forward higher requirements for energy saving and consumption reduction. Improving the production efficiency of production equipment and prolonging the service life of equipment are effective means of saving energy and reducing consumption. The heat treatment industry is also constantly adopting new technologies and new processes to fully tap the potential of materials and prolong their service life to achieve the purpose of saving energy and reducing consumption. [0003] As a commonly used mine crushing machine, the rod mill has also made great progress in recent years. The grinding medium of this type of machine—grinding rod (steel rod) is the consumable of the rod mill. The wear-resistant manganese steel rod commonly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C33/04C21C7/06
Inventor 王勇王定清
Owner LIUZHOU ZHONGLI JINMING HEAT TREATMENT