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Alloy powder material for high thermal strength iron-based cladding layer and preparation method of cladding layer

A technology of alloy powder and cladding layer, which is applied in the field of preparation of alloy powder materials and cladding layers for high thermal strength iron-based cladding layers, can solve problems such as insufficient thermal strength of cladding layers, and achieve great practical value Good performance and formability

Active Publication Date: 2019-01-01
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Using the existing iron-based alloy powder as the cladding material to carry out surface modification on the substrate such as Q235 steel plate, there is a problem of insufficient thermal strength of the cladding layer

Method used

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  • Alloy powder material for high thermal strength iron-based cladding layer and preparation method of cladding layer
  • Alloy powder material for high thermal strength iron-based cladding layer and preparation method of cladding layer
  • Alloy powder material for high thermal strength iron-based cladding layer and preparation method of cladding layer

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Experimental program
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Effect test

Embodiment 1

[0024] A method for preparing a high thermal strength iron-based cladding layer by using alloy powder materials, the steps are as follows:

[0025] 1) Select the raw material powder of the above-mentioned specifications and grades, the purity of each component is greater than or equal to 99%, and the particle size is 100-150 mesh. Weigh it in proportion, and the mass percentage (wt%) is: high-carbon ferrochrome powder 8.5. Low-carbon ferrochromium powder 20.2, nickel powder 5.0, ferrosilicon powder 0.1, ferromanganese powder 3.0, ferromolybdenum powder 1.1, ferrovanadium powder 0.2, ferroniobium powder 0.3, the balance is reduced iron powder, raw materials are mixed by ball mill, Ball mill for 1 to 3 hours to obtain a uniform powder, and then pour the powder into the powder feeder used with the argon tungsten arc welding equipment;

[0026] 2) The substrate is made of Q235 steel plate (150mm×50mm×10mm). The surface is pre-grinded with 180-mesh sandpaper, and the surface of the...

Embodiment 2

[0030] A method for preparing a high thermal strength iron-based cladding layer by using alloy powder materials, the steps are as follows:

[0031] 1) Select the raw material powder of the above-mentioned specifications and grades, the purity of each component is greater than or equal to 99%, and the particle size is 100-150 mesh. Weigh it in proportion, and the mass percentage (wt%) is: high-carbon ferrochrome powder 10.0, low carbon ferrochromium powder 21.0, nickel powder 5.6, ferrosilicon powder 0.4, ferromanganese powder 3.7, ferromolybdenum powder 2.2, ferrovanadium powder 0.4, ferroniobium powder 0.6, the balance is reduced iron powder, raw materials are mixed by ball mill, Ball mill for 1 to 3 hours to obtain a uniform powder, and then pour the powder into the powder feeder used with the argon tungsten arc welding equipment;

[0032] 2) The substrate is made of Q235 steel plate. After the surface is pre-ground with 180-mesh sandpaper, the surface of the substrate is ro...

Embodiment 3

[0036] A method for preparing a high thermal strength iron-based cladding layer by using alloy powder materials, the steps are as follows:

[0037] 1) Select the raw material powder of the above-mentioned specifications and grades, the purity of each component is greater than or equal to 99%, and the particle size is 100-150 mesh. Weigh it in proportion, and the mass percentage (wt%) is: high-carbon ferrochrome powder 11.5, low-carbon ferrochromium powder 21.9, nickel powder 6.3, ferrosilicon powder 0.7, ferromanganese powder 4.5, ferromolybdenum powder 3.3, ferrovanadium powder 0.6, ferroniobium powder 0.8, the balance is reduced iron powder, raw materials are mixed by ball mill, Ball mill for 1 to 3 hours to obtain a uniform powder, and then pour the powder into the powder feeder used with the argon tungsten arc welding equipment;

[0038] 2) The substrate is made of Q235 steel plate. After the surface is pre-ground with 180-mesh sandpaper, the surface of the substrate is ro...

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Abstract

The invention relates to an alloy powder material for a high heat-resisting strength iron-based cladding layer and a cladding layer preparation method. The alloy powder material consists of the following raw materials in percentage by weight: 8.4 to 11.6 percent of high-carbon ferrochromium powder, 17.6 to 24.4 percent of low-carbon ferrochromium powder, 5.0 to 6.3 percent of nickel powder, 0.1 to 0.9 percent of ferrosilicon powder, 3.0 to 4.5 percent of ferromanganese powder, 1.1 to 3.3 percent of ferromolybdenum powder, 0.2 to 0.6 percent of ferrovanadium powder, 0.3 to 0.8 percent of ferroniobium powder, and the balance of reduced iron powder. A cladding layer material prepared by the cladding layer preparation method is high in heat-resisting strength, high in tempering resistance and high in high-temperature oxidation resistance, is well bonded to Q235 steel, has high hardness and wear resistance, and has high economical application value.

Description

technical field [0001] The invention belongs to the field of surface coatings, and in particular relates to an alloy powder material for a high thermal strength iron-based cladding layer and a preparation method for the cladding layer. Background technique [0002] Surface cladding technology is one of the important methods for surface modification of materials. According to different components, composite materials that meet performance requirements can be prepared on the surface of materials at a relatively low cost. Among them, the argon tungsten arc cladding method has the characteristics of concentrated heat, high flexibility, and firm combination of coating and substrate, which can effectively improve the surface properties of cladding materials. application prospects. [0003] At present, the materials of the argon tungsten arc cladding layer mainly include iron-based and nickel-based alloys. The research on the modification of the argon-tungsten arc cladding layer a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/173B23K9/235B23K35/30B23P15/00
CPCB23K9/173B23K9/235B23K35/3066B23K2103/02B23P15/00
Inventor 李爱农徐玮剑游志涛王炎王华君李蓓况诗婷王帅肖勇
Owner WUHAN UNIV OF TECH