Excavator bucket manufactured from temperature-changing-resisting high-strength alloy steel

An alloy steel and excavator technology, applied in the field of excavator buckets, can solve problems such as affecting bucket performance, reducing bucket service life, poor performance, etc., achieving good comprehensive mechanical performance, improving service life, improving mechanical strength and The effect of hardness

Inactive Publication Date: 2018-08-14
HEFEI KANGZHIHENG MACHINERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the working temperature of ordinary excavators is within the normal temperature. For the work in high temperature and extremely cold environments, special excavators are required. The mechanical parts and materials of this excavator have been adapted to the working environment. The adaptability of the excavator to the extreme temperature environment has been improved, but the metal material of the current bucket has relatively poor performance in dealing with high temperature and extreme cold environments with large temperature changes. The large temperature change environment will affect the performance of the bucket and reduce the bucket service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An excavator bucket made of temperature-resistant high-strength alloy steel, the composition of the alloy steel used is as follows in terms of mass percentage: C: 0.10, Si: 0.24, Al: 0.6, Mo: 0.11, Cr: 0.14, Ni : 0.03, Cu: 0.34, V: 0.04, P: 0.003, S: 0.005, trace elements: 0.03, the balance is Fe and unavoidable impurities; among them, the trace elements contain Ce, Sm, Dy and Y, the four The mass ratio is 3:1:1:2.

[0026] In the present embodiment, the preparation method of excavator bucket is as follows:

[0027] (1) Prepare each raw material according to the mass percentage, mix the raw materials evenly and put them into a high-temperature furnace for smelting. The high-temperature furnace used in the smelting process is an electric arc furnace. The smelting process is protected by nitrogen gas. After the smelting is completed, it is sent to the LF refining furnace for further refining. Refining, blowing argon at a pressure of 4atm during the refining process to re...

Embodiment 2

[0032] An excavator bucket made of temperature-resistant high-strength alloy steel, the composition of the alloy steel used is as follows in terms of mass percentage: C: 0.16, Si: 0.26, Al: 0.8, Mo: 0.14, Cr: 0.18, Ni : 0.09, Cu: 0.37, V: 0.06, P: 0.004, S: 0.006, trace elements: 0.08, the balance is Fe and unavoidable impurities; among them, the trace elements contain Ce, Sm, Dy and Y, the four The mass ratio is 3:1:1:2.

[0033] In the present embodiment, the preparation method of excavator bucket is as follows:

[0034] (1) Prepare each raw material according to the mass percentage, mix the raw materials evenly and put them into a high-temperature furnace for smelting. The high-temperature furnace used in the smelting process is an electric arc furnace, and an inert gas is used for protection during the smelting process. After the smelting is completed, it is sent to the LF refining furnace Carry out refining, blow argon gas with the air pressure of 5atm during refining pr...

Embodiment 3

[0039] An excavator bucket made of temperature-resistant high-strength alloy steel, the composition of the alloy steel used is as follows in terms of mass percentage: C: 0.13, Si: 0.25, Al: 0.7, Mo: 0.12, Cr: 0.16, Ni : 0.07, Cu: 0.36, V: 0.05, P: 0.003, S: 0.005, trace elements: 0.06, the balance is Fe and unavoidable impurities; among them, the trace elements contain Ce, Sm, Dy and Y, the four The mass ratio is 3:1:1:2.

[0040] In the present embodiment, the preparation method of excavator bucket is as follows:

[0041] (1) Prepare each raw material according to the mass percentage, mix the raw materials evenly and put them into a high-temperature furnace for smelting. The high-temperature furnace used in the smelting process is an electric arc furnace, and an inert gas is used for protection during the smelting process. After the smelting is completed, it is sent to the LF refining furnace Carry out refining, during the refining process blow argon with 4.5atm pressure to ...

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PUM

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Abstract

The invention relates to the technical field of mechanical manufacturing, in particular to an excavator bucket manufactured from temperature-changing-resisting high-strength alloy steel. The alloy steel used for the bucket is prepared from, by mass, 0.10-0.16% of C, 0.24-0.26% of Si, 0.6-0.8% of Al, 0.11-0.14% of Mo, 0.14-0.18% of Cr, 0.03-0.09% of Ni, 0.34-0.37% of Cu, 0.04-0.06% of V, 0.005% orless of P, 0.008% or less of S, 0.03-0.08% of microelements and the balance Fe and inevitable impurities, wherein the microelements contain Ce, Sm, Dy and Y with the mass ratio being 3:1:1:2. The alloy steel is manufactured through the steps of smelting, refining, heat insulation, rolling, quenching, hardening and tempering, aging and the like, and the steel is machined through a lathe and weldedto form the bucket, and the surface of the bucket is subjected to nanometer enhancement treatment. The temperature changing resistance of the metal materials of the bucket is high, the prepared bucketis high in mechanical strength and good in wear resistance, and a manufactured excavator is wide in working temperature range and quite excellent in performance.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to an excavator bucket made of temperature-resistant high-strength alloy steel. Background technique [0002] A bucket is a structure installed on an excavator or loader for excavating or containing bulk goods. This structure is the main functional part of the excavator and loader. Therefore, the quality and performance of the excavator bucket are required to be very good. [0003] The performance of the bucket is mainly the impact resistance of the block, the tensile performance and the wear resistance and corrosion resistance. For excavator buckets using conventional high-strength steel, these indicators can basically meet the requirements. However, the working temperature of ordinary excavators is within the normal temperature. For the work in high temperature and extremely cold environments, special excavators are required. The mechanical parts and materials of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/42C22C38/02C22C38/06C22C38/44C22C38/46C21D1/25C21D8/00
CPCC21D1/25C21D8/005C22C38/005C22C38/02C22C38/06C22C38/42C22C38/44C22C38/46
Inventor 廖月
Owner HEFEI KANGZHIHENG MACHINERY TECH CO LTD
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