Mo2FeB2-based thermal spraying alloy powder and preparation method thereof

A technology of alloy powder and mo2feb2, which is applied in the direction of coating, fusion spraying, metal material coating process, etc., to achieve the effect of simplifying the coating process, high purity, controllable reinforcing phase and bonding phase

Inactive Publication Date: 2013-05-08
KING STRONG MATERIAL ENG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a Mo 2 FeB 2 Preparation method of alloy powder for thermal spraying

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0023] Implementation example 2 : The composition is: 4.3B-35.1Mo-2.9Ni-8.1Cr-3.8W-Fe balance, the preparation of thermal spraying powder with a reinforcement phase content of 50%.

[0024] 1. According to the production Mo 2 FeB 2 Based on the proportion of thermal spraying alloy powder, weigh 131g BFe powder, 175.5g Mo powder, 14.5g Ni powder, 40.5g Cr powder, 19g W powder, 119.5g carbonyl iron powder, totaling 500g. Put into rolling ball mill and dry mix for 4h. The ball-to-material ratio is 7:1, and the ball mill speed is 70rad / min.

[0025] 2. Put the powder mixed by ball milling into a ceramic crucible and put it into a vacuum induction furnace, heat it to 1400° C. and keep it for 1 hour to obtain a master alloy liquid. Mo was then prepared by water atomization 2 FeB 2 Based thermal spray alloy powder. Wherein the atomizing water pressure is 30Mpa, the nozzle is 14 holes, the hole diameter is 2mm, and the inclination angle is 30°.

[0026] The obtained Mo 2 FeB...

Embodiment 3

[0027] Implementation example 3 : The composition is: the balance of 6.0B-47.5Mo-4.7Ni-2.4Cr-Fe, the preparation of thermal spraying powder with a reinforcing phase content of 70%.

[0028] 1. According to the production Mo 2 FeB 2 Based on the proportion of thermal spraying alloy powder, weigh 182.9g FeB powder, 237.5g Mo powder, 23.5g Ni powder, 12g Cr powder, 44.1g carbonyl iron powder, a total of 500g. Put into rolling ball mill and dry mix for 4h. The ball-to-material ratio is 7:1, and the ball mill speed is 70rad / min.

[0029] 2. Put the powder mixed by ball milling into a ceramic crucible and put it into a vacuum induction furnace, heat it to 1350° C. and keep it for 1 hour to obtain a master alloy liquid. Mo was then prepared by water atomization 2 FeB 2 Based thermal spray alloy powder. Wherein the atomizing water pressure is 23Mpa, the nozzle is 20 holes, the hole diameter is 2mm, and the inclination angle is 35°.

[0030] The obtained Mo 2 FeB 2 The parti...

Embodiment 4

[0031] Implementation example 4 : The composition is: the balance of 6.0B-47.5Mo-4.7Ni-2.4Cr-Fe, the preparation of thermal spraying powder with a reinforcing phase content of 70%.

[0032] 1. According to the production Mo 2 FeB 2Based on the proportion of thermal spraying alloy powder, weigh 185g FeB powder, 239.5g Mo powder, 26g Ni powder, 5.5g Cr powder, 45g carbonyl iron powder and add up to 500g. Put into rolling ball mill and dry mix for 4h. The ball-to-material ratio is 7:1, and the ball mill speed is 70rad / min.

[0033] 2. Put the powder mixed by ball milling into a ceramic crucible and put it into a vacuum induction furnace, heat it to 1390°C and keep it for 1 hour to obtain a master alloy liquid. Mo was then prepared by water atomization 2 FeB 2 Based thermal spray alloy powder. Among them, the atomizing water pressure is 26Mpa, the nozzle is 15 holes, the hole diameter is 4mm, and the inclination angle is 32°.

[0034] The obtained Mo 2 FeB 2 The particl...

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Abstract

The invention discloses Mo2FeB2-based thermal spraying alloy powder which can be used for improving the performance of components and parts and prolonging the service life of the components and parts. The Mo2FeB2-based thermal spraying alloy powder is prepared from the following raw materials in percentage by weight: 14.64-36.5% of FeB, 21.3-47.5% of Mo, 1.3-4.7% of Ni, 2.4-8.1% of Cr, 0-5% of W and 8.82%-49.66% of carbonyl iron. The invention also discloses a preparation method of the Mo2FeB2-based thermal spraying alloy powder. The thermal spraying alloy powder prepared by the method has high purity, narrow distribution range of powder size, high spheroidization rate and good flowability and is suitable for a thermal spraying technology of a wear resistance anti-corrosion coating.

Description

technical field [0001] The present invention relates to alloy powder and preparation method thereof, relate in particular to a kind of Mo that can be used to improve the performance and service life of parts 2 FeB 2 Thermal spraying alloy powder and its preparation method. Background technique [0002] Thermal spraying technology is a surface modification technology. Due to its many advantages, it is widely used in mechanical electronics, chemical industry, aerospace and other fields to improve the performance and service life of parts. Thermal spraying technology includes: thermal spraying materials, spraying equipment and spraying process, among which thermal spraying materials are the key factors affecting coating performance. At present, thermal spraying materials that have been industrialized include: metals, alloys, and ceramics, etc., and are mainly used in the form of powder, wire, and rods, and the amount of powder used accounts for more than 70% of the overall s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/06B22F1/00
Inventor 郭志猛王刚曾鲜王振明陈文吴清军高琳杨剑毛伟吉屈彦杰杨芳叶安平
Owner KING STRONG MATERIAL ENG LTD
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