CN104831163A - Fe-Mo-B-Al welding layer material and preparation method thereof - Google Patents
Fe-Mo-B-Al welding layer material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a Fe-Mo-B-Al welding layer material and a preparation method thereof. The Fe-Mo-B-Al welding layer material comprises the following components in percentage by mass: 64-71% of Fe, 20-33% of Mo, 5% of B, 7% of Al and 1% of Al2O3. The preparation method comprises the following steps: (1) preparing Fe-Mo-B-Al nanospheres by gas atomization; and (2) adding the Al2O3 into the nanospheres prepared in the step (1), and finally, preparing the nano powder by an activator protection process. The prepared welding layer has high strength of the alloy steel, and also has the characteristics of excellent corrosion resistance, high static friction coefficient and the like of the titanium metal.
Description
Technical field
The present invention relates to technical field of hot, is a kind of Fe-Mo-B-Al welding layer material and preparation method thereof specifically.
Background technology
As everyone knows, except minority precious metal, metallic substance can be corroded with surrounding medium generation chemical reaction and electrochemical reaction.In addition, metallic surface by various mechanical effect the wearing and tearing that cause also very serious.A large amount of hardwares lost efficacy because of corrosion and wearing and tearing, caused waste greatly and loss.Add up according to some industrially developed country, the loss that annual steel cause because of corrosion and wearing and tearing accounts for 10% of steel ultimate production, and the loss amount of money accounts for the 2%-4% of total value of production in national economy.If by the shut-down caused because of metallic corrosion and wearing and tearing, stopping production and corresponding cause industrial injury, catch fire, the loss such as explosion hazard statistics interior, its numerical value is more surprising.Therefore, development protecting metallic surface and intensifying technology are the key subjects of various countries' general concern.
The material bond strength that traditional spraying technology uses is poor, void content is high, wear no resistance, and is difficult to the growth requirement meeting modern industry.And Novel hot spray material can make up these defects, adopt new technology, novel method, new formula is obtained has high rigidity, high-wearing feature, high corrosion resistance, heterogeneous microstructure is even, and the excellent material of comprehensive mechanical property is to meet the trend that the active demand of people is hot-spraying techniques development.
Summary of the invention
Poor in order to solve conventional coatings wear resistance, the problems such as hardness is lower, the invention provides a kind of Fe-Mo-B-Al welding layer material and preparation method thereof.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of Fe-Mo-B-Al welding layer material, the mass fraction of its component and each component is that Fe accounts for 64-71 part, Mo accounts for 20-33 part, B accounts for 5 parts, Al accounts for 7 parts, Al
2o
3account for 1 part.
The pure metal of Mo is silvery white, very hard.A small amount of Mo mixing Fe is added among nano coating, nano coating can be made hardening.
A preparation method for Fe-Mo-B-Al welding layer material, comprises the following steps:
(1) aerosolization legal system is adopted to obtain the nanometer ball of Fe-Mo-B-Al;
(2) in the obtained nanometer ball of step (1), Al is added
2o
3, finally adopt promoting agent protection method to obtain nanometer powder.
The invention has the beneficial effects as follows: the high strength of the existing alloy steel products of the layer that the present invention obtains, has again the features such as the solidity to corrosion of the excellence of titanium metal, high static friction coefficient.The coating hardness that the present invention makes reaches HRC37, and have higher bonding strength and less void content, bonding strength, grasping force are higher, and layer thickness can reach 5 millimeters, and density is well 0.63.The present invention is applicable to open arc welding, also can be used as the primer of coated material, has very large progress compared with conventional alloys silk material.
Embodiment
The technique means realized to make the present invention and creation characteristic are easy to understand, and set forth further below to the present invention.
Embodiment one:
A kind of Fe-Mo-B-Al welding layer material, the mass fraction of its component and each component is that Fe accounts for 64 parts, Mo accounts for 20 parts, B accounts for 5 parts, Al accounts for 7 parts, Al
2o
3account for 1 part.
Described trace element is C, Mn, B, Co, Al.
A preparation method for Fe-Mo-B-Al welding layer material, comprises the following steps:
(1) aerosolization legal system is adopted to obtain the nanometer ball of Fe-Mo-B-Al;
(2) in the obtained nanometer ball of step (1), Al is added
2o
3, finally adopt promoting agent protection method to obtain nanometer powder.
Embodiment two:
A kind of Fe-Mo-B-Al welding layer material, the mass fraction of its component and each component is that Fe accounts for 67 parts, Mo accounts for 25 parts, B accounts for 5 parts, Al accounts for 7 parts, Al
2o
3account for 1 part.
Described trace element is C, Mn, B, Co, Al.
A preparation method for Fe-Mo-B-Al welding layer material, with embodiment one.
Embodiment three:
A kind of Fe-Mo-B-Al welding layer material, the mass fraction of its component and each component is that Fe accounts for 68 parts, Mo accounts for 29 parts, B accounts for 5 parts, Al accounts for 7 parts, Al
2o
3account for 1 part.
Described trace element is C, Mn, B, Co, Al.
A preparation method for Fe-Mo-B-Al welding layer material, with embodiment one.
Embodiment four:
A kind of Fe-Mo-B-Al welding layer material, the mass fraction of its component and each component is that Fe accounts for 71 parts, Mo accounts for 33 parts, B accounts for 5 parts, Al accounts for 7 parts, Al
2o
3account for 1 part.
Described trace element is C, Mn, B, Co, Al.
A preparation method for Fe-Mo-B-Al welding layer material, with embodiment one.
Adopt submerged arc welding technology obtained Fe-Mo-B-Al layer on the roll being matrix with 20Co steel, the matrix with described layer and bonding strength, microhardness, void content and the abrasive wear resistance contrast and experiment without the matrix of described layer are in table 1:
The performance comparison experimental result of table 1 Fe-Mo-B-Al layer and 20Co steel matrix:
| Experimental group is numbered | Porosity (AREA%) | Bonding strength (MPa) | Microhardness (HV) |
| 1 | 0.563 | 92.6 | 662 |
| 2 | 0.425 | 85.9 | 577 |
| 3 | 0.581 | 85.3 | 424 |
| 4 | 0.433 | 87.1 | 533 |
| Mean value | 0.499 | 87.7 | 549 |
| Comparative group | 0.827 | 49.1 | 371 |
In the present invention, the selection of welding wire used should consider the impact of flux constituent, considers the impact of matrix constituent again.For reaching required weld metal composition, the welding process that a kind of solder flux (fysed flux) coordinates with several welding wire can be adopted, also can adopt the welding process that a kind of welding wire coordinates with several solder flux (sintered flux).
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a Fe-Mo-B-Al welding layer material, is characterized in that: the mass fraction of its component and each component is that Fe accounts for 64-71 part, Mo accounts for 20-33 part, B accounts for 5 parts, Al accounts for 7 parts, Al
2o
3account for 1 part.
2. a preparation method for Fe-Mo-B-Al welding layer material, is characterized in that: comprise the following steps:
(1) aerosolization legal system is first adopted to obtain the nanometer ball of Fe-Mo-B-Al;
(2) in the obtained nanometer ball of step (1), Al is added
2o
3, finally adopt promoting agent protection method to obtain nanometer powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233687.8A CN104831163A (en) | 2015-05-09 | 2015-05-09 | Fe-Mo-B-Al welding layer material and preparation method thereof |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201510233687.8A CN104831163A (en) | 2015-05-09 | 2015-05-09 | Fe-Mo-B-Al welding layer material and preparation method thereof |
Publications (1)
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| CN104831163A true CN104831163A (en) | 2015-08-12 |
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ID=53809356
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151195A (en) * | 1980-04-24 | 1981-11-24 | Nippon Steel Corp | Low-hydrogen type coated arc welding rod for hardening and building-up |
| JP2005329415A (en) * | 2004-05-18 | 2005-12-02 | Kobe Steel Ltd | Welding wire for modified 9cr-1mo steel |
| JP2006272348A (en) * | 2005-03-28 | 2006-10-12 | Kobe Steel Ltd | Bonded flux for submerged arc welding |
| CN101015886A (en) * | 2006-02-09 | 2007-08-15 | 林肯环球公司 | Metal cored wire |
| CN101029376A (en) * | 2007-04-12 | 2007-09-05 | 北京科技大学 | Fe-based amorphous nano-coating powder and its argon atomization production |
| CN101144130A (en) * | 2006-08-08 | 2008-03-19 | 亨廷顿冶金公司 | Welding alloy and articles for use in welding, weldments and method for producing weldments |
| CN104233084A (en) * | 2014-09-11 | 2014-12-24 | 芜湖鼎瀚再制造技术有限公司 | Fe-Gr-B-Si nano-coating and preparation method thereof |
-
2015
- 2015-05-09 CN CN201510233687.8A patent/CN104831163A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151195A (en) * | 1980-04-24 | 1981-11-24 | Nippon Steel Corp | Low-hydrogen type coated arc welding rod for hardening and building-up |
| JP2005329415A (en) * | 2004-05-18 | 2005-12-02 | Kobe Steel Ltd | Welding wire for modified 9cr-1mo steel |
| JP2006272348A (en) * | 2005-03-28 | 2006-10-12 | Kobe Steel Ltd | Bonded flux for submerged arc welding |
| CN101015886A (en) * | 2006-02-09 | 2007-08-15 | 林肯环球公司 | Metal cored wire |
| CN101144130A (en) * | 2006-08-08 | 2008-03-19 | 亨廷顿冶金公司 | Welding alloy and articles for use in welding, weldments and method for producing weldments |
| CN101029376A (en) * | 2007-04-12 | 2007-09-05 | 北京科技大学 | Fe-based amorphous nano-coating powder and its argon atomization production |
| CN104233084A (en) * | 2014-09-11 | 2014-12-24 | 芜湖鼎瀚再制造技术有限公司 | Fe-Gr-B-Si nano-coating and preparation method thereof |
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Application publication date: 20150812 |
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