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Method for manufacturing highly wear-resisting grader blade

A manufacturing method and motor grader technology, applied in the direction of manufacturing tools, other manufacturing equipment/tools, solid-state diffusion coating, etc., can solve the problems of wasting materials, increasing production costs, and poor results, and achieve reasonable material selection, increased strength and Wear resistance, the effect of solving the shortcomings of non-wear resistance

Inactive Publication Date: 2008-04-30
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although the service life of the quenched grader blade has been improved, the effect is still not good, and it still needs to be replaced frequently, which increases the production cost and wastes a lot of materials.

Method used

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  • Method for manufacturing highly wear-resisting grader blade
  • Method for manufacturing highly wear-resisting grader blade
  • Method for manufacturing highly wear-resisting grader blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: A preparation process for a grader blade, using 16Mn alloy steel as the metal matrix material of the grader blade, the strength, wear resistance and corrosion resistance of this material are all better than ordinary carbon steel. First cast 16Mn alloy steel into a grader blade, and then heat the grader blade at 200°C for 1.5h for complete annealing. For grader blades working faces 1, 2, 3 (eg figure 1 , 2 As shown) after grinding and cleaning, perform ion implantation tungsten carbide treatment, the specific steps are: 1), ion implantation tungsten: the vacuum degree of the treatment furnace is 10-15Pa, and the pulse current beam density is 1.0-1.5mA / cm 2 , the pulse frequency is 25HZ, the accelerating voltage is between 20KV, and the implantation energy of tungsten ions is 136KeV, the concentration of implanted tungsten ions is 24-36%, and the time of infiltrating tungsten ions is 24h. After processing, the blades are taken out after cooling with the furna...

Embodiment 2

[0017] Embodiment 2: Firstly, 16Mn alloy steel is machined into a grader blade, and then the grader blade is kept at 200° C. for 3 hours for complete annealing. For grader blades working faces 1, 2, 3 (eg figure 2 As shown) after grinding and cleaning, perform ion implantation tungsten carbide treatment, the specific steps are 1) ion implantation tungsten: the vacuum degree of the treatment furnace is 0.01-1Pa, and the pulse current beam density is 3-3.6mA / cm 2 , the pulse frequency is 50HZ, the accelerating voltage is 30KV, the implantation energy of tungsten ions is 150KeV, the concentration of implanted tungsten ions is 45-50%, and the time of infiltrating tungsten ions is 12h. After processing, the blades are taken out after cooling with the furnace in the furnace. 2) Carburizing and quenching treatment: Put the blade that has completed step 1) into an ordinary carburizing furnace, heat it slowly to 920°C, keep it warm for 2 hours, then quickly take it out with the furna...

Embodiment 3

[0018] Embodiment 3: Firstly, 16Mn alloy steel is machined into a grader blade, and then the grader blade is kept at 200° C. for 2 hours for complete annealing. For grader blades working faces 1, 2, 3 (eg figure 2 As shown) after grinding and cleaning, perform ion implantation tungsten carbide treatment, the specific steps are 1) ion implantation tungsten: the vacuum degree of the treatment furnace is 15-30Pa, and the pulse current beam density is 0.6-1.1mA / cm 2 , the pulse frequency is 80-90HZ, the accelerating voltage is 40KV, the implantation energy of tungsten ions is 100KeV, the concentration of implanted tungsten ions is 15-21%, and the time of infiltrating tungsten ions is 12h. After processing, the blades are taken out after cooling with the furnace in the furnace. 2) Carburizing and quenching treatment: Put the blade that has completed step 1) into an ordinary carburizing furnace, slowly heat it to 900°C, keep it warm for 2 hours, then quickly take it out with the f...

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Abstract

This invention discloses a method for making high-wearing leveler blade to simplify its technology and lower the cost, improve its property and lengthen its durability, which comprises the following steps: casting alloyed steel and machining it into leveler blade; executing annealing treatment at 200Deg. C for over 1 hour; polishing acting surface of leveler blade to extract its oxide film and washing it; executing ionic jet tungsten carbide treatment comprising ionic jet tungsten and carbonization quenching.

Description

technical field [0001] The invention relates to a construction machinery manufacturing process, in particular to a material selection and preparation process for a grader blade. Background technique [0002] At present, with the development of industry, the use of quenching technology to improve the wear resistance of materials in machinery manufacturing has been widely used. [0003] Quenching is mainly to use rapid cooling at high temperature to obtain martensite structure and improve the hardness, strength and wear resistance of the workpiece. The advantage is that quenching the material after selecting the material can prolong the life of the material by 2 to 6 times. Therefore, it has been widely used. In practice, in order to prolong the service life of the original grader blades, the method of quenching the working face is also adopted. However, the inventors have found in practice that since the overall hardness of the working face increases after quenching, when ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P23/04C23C10/00C23C14/34C23F17/00
Inventor 单小宏蒋建献
Owner SANY HEAVY IND CO LTD (CN)
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