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A High Temperature Anti-wear Fe-cr-b-al Casting Alloy

A fe-cr-b-al, casting alloy technology, applied in the field of high-temperature wear-resistant Fe-Cr-B-Al casting alloy and its preparation, high-temperature wear-resistant alloy and its preparation, can solve the problem of poor market competitiveness and low price Expensive, high production costs and other issues, to achieve the effect of low production cost, good high temperature wear resistance, high hardness

Inactive Publication Date: 2015-10-14
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned high-temperature wear-resistant materials contain expensive alloy elements such as nickel, molybdenum, and tungsten, which lead to high production costs and poor market competitiveness.

Method used

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  • A High Temperature Anti-wear Fe-cr-b-al Casting Alloy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The high-temperature wear-resistant Fe-Cr-B-Al casting alloy of the present invention is melted in a 500-kg medium-frequency induction furnace, and its manufacturing process steps are:

[0027] ① Using 40% mass fraction of 1Cr13 stainless steel scrap, 15% ferroboron, 8% ferrochromium carbon, 8% ferrochrome nitride, 4% aluminum metal, 0.8% rare earth ferrosilicon alloy, 0.5% silicon Calcium-barium alloy and 23.7% Q235 steel scrap ingredients.

[0028]② 1Cr13 stainless steel scrap with a mass fraction of 40% (the chemical composition mass fraction of 1Cr13 stainless steel scrap is: 0.10-0.15%C, 11.50-13.50%Cr, ≤1.00%Si, ≤1.00%Mn, ≤0.025%S, ≤0.030 %P, ≤0.60%Ni, ≤0.30%Cu, balance Fe), 23.7% of Q235 steel scrap (the chemical composition mass fraction of Q235 steel scrap is: 0.14~0.22% of C, 0.30~0.65% of Mn, ≤0.30% Si, ≤0.050% S, ≤0.045% P, the balance is Fe), 8% carbon ferrochrome (the chemical composition mass fraction of carbon ferrochrome is: 62.0-68.0% Cr, 7.0-8.5 % C...

Embodiment 2

[0032] The high-temperature wear-resistant Fe-Cr-B-Al casting alloy of the present invention is melted in a 500-kg medium-frequency induction furnace, and its manufacturing process steps are:

[0033] ① Using 45% mass fraction of 1Cr13 stainless steel scrap, 12% ferroboron, 10% ferrochromium carbon, 6% ferrochrome nitride, 5% aluminum metal, 0.5% rare earth ferrosilicon alloy, and 0.8% silicon Calcium-barium alloy and 20.7% Q235 steel scrap ingredients.

[0034] ② The 1Cr13 stainless steel scrap with a mass fraction of 45% (the chemical composition mass fraction of 1Cr13 stainless steel scrap is: 0.10~0.15%C, 11.50~13.50%Cr, ≤1.00%Si, ≤1.00%Mn, ≤0.025%S, ≤0.030 %P, ≤0.60%Ni, ≤0.30%Cu, balance Fe), 20.7% of Q235 steel scrap (the chemical composition mass fraction of Q235 steel scrap is: 0.14~0.22% of C, 0.30~0.65% of Mn, ≤0.30% Si, ≤0.050% S, ≤0.045% P, the balance is Fe), 10% carbon ferrochrome (the chemical composition mass fraction of carbon ferrochrome is: 62.0-68.0% Cr, 7...

Embodiment 3

[0038] The high-temperature wear-resistant Fe-Cr-B-Al casting alloy of the present invention is melted in a 500-kg medium-frequency induction furnace, and its manufacturing process steps are:

[0039] ① 1Cr13 stainless steel scrap with a mass fraction of 43%, 13% ferroboron, 9% ferrochromium carbon, 7% ferrochromium nitride, 4.5% aluminum metal, 0.7% rare earth ferrosilicon alloy, and 0.7% silicon Calcium-barium alloy and 22.1% Q235 steel scrap ingredients.

[0040] ② 1Cr13 stainless steel scrap with a mass fraction of 43% (the chemical composition mass fraction of 1Cr13 stainless steel scrap is: 0.10~0.15%C, 11.50~13.50%Cr, ≤1.00%Si, ≤1.00%Mn, ≤0.025%S, ≤0.030 %P, ≤0.60%Ni, ≤0.30%Cu, balance Fe), 22.1% Q235 steel scrap (the chemical composition mass fraction of Q235 steel scrap is: 0.14-0.22% C, 0.30-0.65% Mn, ≤0.30% Si, ≤0.050% S, ≤0.045% P, the balance is Fe), 9% carbon ferrochrome (the chemical composition mass fraction of carbon ferrochrome is: 62.0-68.0% Cr, 7.0-8.5 % ...

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Abstract

The invention discloses a Fe-Cr-B-Al casting alloy capable of resisting high temperature wear, and belongs to the field of casting technology. The Fe-Cr-B-Al casting alloy comprises following ingerdients, by mass, 40 to 45% of 1Cr13 stainless steel waste material, 12 to 15% of ferroboron, 8 to 10% of carbon ferrochrome, 6 to 8% of nitrided ferrochrome, 4 to 5% of metallic aluminium, 0.5 to 0.8% of rare earth ferrosilicon alloy, 0.5 to 0.8% of calcium silicon barium alloy and 20 to 24% of Q235 steel scrap. The ingredients above are subjected to smelting, casting and heat processing treatment so as to obtain the Fe-Cr-B-Al casting alloy. Advantages of the Fe-Cr-B-Al casting alloy are that: hardness is high, high temperature wear resistance is excellent, and production cost is low. Popularization and application of the Fe-Cr-B-Al casting alloy possess excellent economic benefits.

Description

technical field [0001] The invention relates to a high-temperature wear-resistant alloy and a preparation method thereof, in particular to a high-temperature wear-resistant Fe-Cr-B-Al casting alloy and a preparation method thereof, belonging to the field of casting technology. Background technique [0002] High-temperature wear is a severe wear condition, which requires extremely high materials, not only high hardness, but also good oxidation resistance and high-temperature softening resistance of the matrix. Common materials are difficult to meet the requirements. In order to improve the high-temperature wear resistance of materials, Chinese invention patent CN102851569A discloses a high-temperature-resistant and wear-resistant white cast iron and its production method, which are used to solve the hardness problem of white cast iron. Its special feature is that the chemical composition of the white cast iron parts is calculated according to the mass fraction percentage: C3....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/06C22C38/32
Inventor 符寒光郑开宏张锦红高义民邢建东皇志富马胜强
Owner BEIJING UNIV OF TECH