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High-strength alloy used for mining mechanical device and production method for high-strength alloy

A high-strength alloy and mining machinery technology, applied in the field of mechanical materials, can solve the problems of inability to prepare large-sized alloy material structural parts, application limitations, etc., and achieve the effects of easy mass production, improved alloy strength, and easy operation.

Inactive Publication Date: 2016-06-29
桐乡市搏腾贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, neither of the above two methods can prepare large-scale alloy material structures, so their application is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the embodiment of the present invention, a high-strength alloy used for mining mechanical devices has the following components by mass percentage: 3% carbon, 0.5% tungsten, 0.4% vanadium, 4% zinc, 0.8% molybdenum, 0.2% zirconium, chromium 20%, niobium 0.05%, silicon 0.2%, phosphorus 0.1%, and the balance is iron.

[0022] The production method of the high-strength alloy used for mining mechanical devices includes the following steps:

[0023] 1) Weighing: Weigh the raw materials according to the above mass percentage.

[0024] 2) Smelting: Add carbon, tungsten, zinc, molybdenum, silicon, phosphorus, and iron in the raw materials obtained in step 1) into the smelting furnace, smelting and stirring constantly, the smelting temperature is 780°C, and then add vanadium, zirconium, Chromium, niobium, and then heat up to 1000 ° C for 2 hours and continue to stir.

[0025] 3) Refining: Add 0.1% refining agent of the mass of the mixture to the mixture obtained by smelting i...

Embodiment 2

[0029] In the embodiment of the present invention, a high-strength alloy used for mining mechanical devices has the following components by mass percentage: 4% carbon, 20% tungsten, 2.0% vanadium, 16% zinc, 2.5% molybdenum, 2% zirconium, and chromium 28%, niobium 6%, silicon 2%, phosphorus 0.1%, and the balance is iron.

[0030] The production method of the high-strength alloy used for mining mechanical devices includes the following steps:

[0031] 1) Weighing: Weigh the raw materials according to the above mass percentage.

[0032] 2) Smelting: Add the carbon, tungsten, zinc, molybdenum, silicon, phosphorus, and iron in the raw materials obtained in step 1) into the melting furnace, carry out melting and stirring continuously, the melting temperature is 850°C, and then add vanadium, zirconium and chromium after smelting for 60 minutes , niobium, and then heat up to 1200 ° C to continue smelting for 4 hours with constant stirring.

[0033] 3) Refining: add 0.25% refining ag...

Embodiment 3

[0037] In the embodiment of the present invention, a high-strength alloy used for mining mechanical devices has the following components by mass percentage: 3.1% carbon, 1.0% tungsten, 0.5% vanadium, 5.0% zinc, 1.0% molybdenum, 0.4% zirconium, chromium 23%, niobium 0.1%, silicon 0.6%, phosphorus 0.06%, and the balance is iron.

[0038] The production method of the high-strength alloy used for mining mechanical devices includes the following steps:

[0039] 1) Weighing: Weigh the raw materials according to the above mass percentage.

[0040] 2) Smelting: Add carbon, tungsten, zinc, molybdenum, silicon, phosphorus, and iron in the raw materials obtained in step 1) into the smelting furnace, smelting and stirring continuously, the smelting temperature is 800°C, and then add vanadium, zirconium, Chromium and niobium, then raise the temperature to 1050°C for 2.5 hours and continue to stir.

[0041] 3) Refining: Add 0.15% of the refining agent of the mass of the mixture to the mix...

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Abstract

The invention discloses a high-strength alloy used for mining mechanical devices and a production method thereof. The composition of the high-strength alloy is 3-4% carbon, 0.5-20% tungsten, 0.4-2.0% vanadium, and 4% zinc according to the mass percentage. ‑16%, molybdenum 0.8‑2.5%, zirconium 0.2‑2%, chromium 20‑28%, niobium 0.05‑6%, silicon 0.2‑2%, phosphorus ≤0.1%, and the balance is iron. According to the above mass percentage, the raw materials are weighed; it is obtained after smelting, refining, casting, aging treatment and other steps. The room temperature tensile strength of the alloy prepared by the invention is 1050-1550MPa, the yield strength is 1010-1500MPa, the Vickers hardness is 400-510, and the Rockwell hardness is 30-40. The raw materials used in the invention are easy to obtain, low in cost, high in cost performance, simple in process, easy to operate, can obviously improve the problem of low alloy strength, and are easy to produce on a large scale.

Description

technical field [0001] The invention relates to the technical field of mechanical materials, in particular to a high-strength alloy used in mining mechanical devices and a production method thereof. Background technique [0002] Alloys are substances with metallic properties that are synthesized by two or more metals and metals or nonmetals by a certain method. It is generally obtained by melting into a homogeneous liquid and solidifying. At present, the maximum strength of tungsten-based alloys widely used commercially does not exceed 1000MPa after deformation and heat treatment. Such alloy materials are still difficult to meet the requirements of high-performance structural materials. Therefore, their large-scale application in load-bearing structural parts is limited, especially It is a device used in the mining field that requires relatively high alloy strength. In order to improve the heat resistance and toughness of alloy materials, researchers have carried out a lot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C33/08
CPCC22C37/10C22C33/08C22C37/06
Inventor 陈瑾玮
Owner 桐乡市搏腾贸易有限公司
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