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High-wear-resisting land leveler blade and production method

A grader, high wear-resistant technology, applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of high cost, complex ion implantation and infiltration tungsten process, low production efficiency, etc., to achieve increased strength and excellent strength , the effect of reducing gas and inclusions

Active Publication Date: 2013-07-17
西安翱翔新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of ion implantation and infiltration of tungsten is complicated, high in cost and low in production efficiency.

Method used

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  • High-wear-resisting land leveler blade and production method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high wear-resistant grader blade, in terms of weight percentage, the material of the high wear-resistant grader blade is composed of the following components: C: 0.25%, Al: 0.6%, Mn: 1%, W: 1.5%, Si- B-C-N nano-amorphous particles: 0.7%, B: 0.0032%, P: 0.01%, S: 0.009%, and the balance is Fe; the preparation steps of the high wear-resistant motor grader blade are as follows:

[0024] 1) In terms of weight percentage, the composition is C: 0.25%, Al: 0.6%, Mn: 1%, W: 1.5%, B: 0.0032%, P: 0.01%, S: 0.009%, and the balance is Fe Molten steel desulfurization, combined top-bottom blowing in converter, RH vacuum degassing treatment, Si-B-C-N nano-amorphous particles with a weight percentage of 0.7% are pressed in by the flushing method, and the furnace is released when the temperature of molten steel is 1670°C;

[0025] 2) Cast the grader blade slab in the wax mold shell with a preheating temperature of 500°C, and control the cooling time of the grader blade slab casting to...

Embodiment 2

[0029] A high wear-resistant grader blade, in terms of weight percentage, the material of the high wear-resistant grader blade is composed of the following components: C: 0.26%, Al: 0.5%, Mn: 0.9%, W: 1.7%, Si- B-C-N nano-amorphous particles: 0.6%, B: 0.003%, P: 0.015%, S: 0.009%, and the balance is Fe; the preparation method of the high wear-resistant motor grader blade is as follows:

[0030] 1) In terms of weight percentage, the composition is C: 0.26%, Al: 0.5%, Mn: 0.9%, W: 1.7%, B: 0.003%, P: 0.015%, S: 0.009%, and the balance is Fe Desulfurization of molten steel, combined top-bottom blowing of converter, RH vacuum degassing treatment, injection of Si-B-C-N nano-amorphous particles with a weight percentage of 0.6% by punching method, and release when the temperature of molten steel is 1650°C;

[0031] 2) Cast the grader blade slab in the wax mold shell with a preheating temperature of 490°C, and control the cooling time of the grader blade slab casting to 1500°C within ...

Embodiment 3

[0035] A high wear-resistant grader blade, in terms of weight percentage, the material of the high wear-resistant grader blade is composed of the following components: C: 0.27%, Al: 0.4%, Mn: 0.8%, W: 2%, Si- B-C-N nano-amorphous particles: 0.5%, B: 0.003%, P: 0.009%, S: 0.015%, and the balance is Fe; the preparation method of the high wear-resistant motor grader blade is as follows:

[0036] 1) In terms of weight percentage, the composition is C: 0.27%, Al: 0.4%, Mn: 0.8%, W: 2%, B: 0.003%, P: 0.009%, S: 0.015%, and the balance is Fe Desulfurization of molten steel, combined top-bottom blowing of converter, RH vacuum degassing treatment, injection of Si-B-C-N nano-amorphous particles with a weight percentage of 0.5% by punching method, and release when the temperature of molten steel is 1640°C;

[0037] 2) Cast the grader blade slab in the wax mold shell with a preheating temperature of 480°C, and control the cooling time of the grader blade slab casting to 1500°C within 18 m...

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Abstract

The invention relates to a high-wear-resisting land leveler blade and a production method. The elementary composition of the high-wear-resisting land leveler blade includes, by weight, 0.25-0.27% of C (carbon), 0.4-0.6% of AL (aluminum), 0.8-1% of Mn (manganese), 1.5-2% of W (wolfram), 0.5-0.7% of Si-B-C-N (silicon-boron-carbon-nitrogen) nano amorphous particles, no more than 0.0032% of B (boron), no more than 0.015% of P (phosphorus), no more than 0.015% of S (sulfur) and the balance being Fe (iron). The production method includes performing electric steelmaking, molten iron desulphurization and dephosphorization, performing converter top-bottom combined blowing and vacuum degassing processing, pressing in the Si-B-C-N nano amorphous particles by the pour-over process, casting a blade plate blank, cooling the blade plate blank to 1250-1270 DEG C to preserve heat for 1-2 hours, cooling the blade plate blank to 960-980 DEG C to be quenched with oil, tempering at 300 DEG C and then cooling sharply, and finally obtaining the land leveler blade. The blade has good match of strength, toughness and hardness, abrasive resistance of the blade is increased by more than twice as compared with that of a 65Mn blade, the production method is convenient, cost is low and production efficiency is high.

Description

technical field [0001] The invention relates to the field of mechanical design and manufacture, in particular to a high wear-resistant motor grader blade and a preparation method thereof. Background technique [0002] The blade of the motor grader is the main working device of the grader. By cooperating with other auxiliary devices, it can perform earthwork cutting, scraping and leveling operations, and can also perform sandstone, gravel and roadbed pavement repair operations, as well as material backfilling, pushing and leveling Operation. [0003] When the grader blade is working, it bears little impact load. In order to improve the service life of the blade, the steel used for the blade is required to have higher hardness under the premise of reasonable strength and impact toughness. At present, the steels commonly used for blades are No. 85 carbon steel, 30MnB steel and 65Mn steel. The surface hardness of the 65Mn steel blade reaches HRC40-55 through quenching heat tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/12B22C9/04
Inventor 孙国栋邓娟利栾丽君李辉
Owner 西安翱翔新材料科技有限公司
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