CN104233084A - Fe-Gr-B-Si nano-coating and preparation method thereof - Google Patents
Fe-Gr-B-Si nano-coating and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a Fe-Gr-B-Si nano-coating and a preparation method thereof. The nano-coating is prepared from the following components in percentage by mass: 42-61 percent of Fe, 11-23 percent of Gr, 11-23 percent of B, 11-23 percent of Si, 1-5 percent of CBN and 1.25 percent of trace elements, wherein the trace elements comprise Go, Mo, W and Ni. The preparation method comprises the following steps: preparing Fe, Gr and Si nano-spheres by adopting a dry grinding method; mixing Go, Mo, W and Ni by adopting an activator protecting method to prepare nanopowder, and adding the auxiliary CBN at the same time; and preparing the Fe-Gr-B-Si nano-coating on a steel matrix of a 4Cr13 die by adopting a high velocity oxygen fuel process. The Fe-Gr-B-Si nano-coating is capable of solving the problems of relatively poor abrasion resistance and relatively low corrosion resistance of existing coatings, the microscopic tissue and structure of the material surface coating can be improved, and the abrasion resistance of the material surface can be integrally improved.
Description
Technical field
The present invention relates to technical field of hot, is a kind of Fe-Gr-B-Si nano coating and preparation method thereof specifically.
Background technology
Laser melting coating (Laser Cladding), also known as laser cladding or laser cladding, is the one of high-energy-density process for treating surface, is a kind of new process for modifying surface.It by adding cladding material at substrate surface, and utilizes the laser beam of high-energy-density to make it the method for consolidation together with substrate surface thin layer, is the filling cladding layer of metallurgical binding at substrate surface formation and its.In workpiece field of repairing, there is the incomparable advantage of other surface treatment methods many, with built-up welding, spraying, plating and gas phase sediment-filled phase ratio, laser melting coating has that extent of dilution is little, dense structure, coating and matrix is combined, be applicable to that cladding material is many, granularity and the feature such as content is large, and therefore laser melting and coating technique application prospect is very wide.
Current widely used laser cladding of material mainly contains: Ni-based, cobalt-based, ferrous alloy, tungsten carbide composite.In order to meet the development need of laser melting and coating technique, people need a kind of that be applicable to laser melting and coating technique, that over-all properties is more excellent type material.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of Fe-Gr-B-Si nano coating and preparation method thereof.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of Fe-Gr-B-Si nano coating, the mass percent of its component and each component is that Fe accounts for 42%-61%, Gr and accounts for 11%-23%, B and account for 11%-23%, Si and account for that 11%-23%, CBN account for 1%-5%, trace element accounts for 1.25%; Described trace element comprises Go, Mo, W, Ni.
A preparation method for Fe-Gr-B-Si nano coating, comprises the following steps: first adopt dry type comminuting method to obtain the nanometer ball of Fe, Gr, B and Si, then adopts the mixing of promoting agent protection method Go, Mo, W, Ni to obtain nanometer powder, adds auxiliary agent CBN simultaneously.Described auxiliary agent CBN can improve the hardness 40% of material.
Described nanometer powder can adopt supersonic flame (HVOF) spraying coating process to prepare Fe-Gr-B-Si nano coating on 4Cr13 die steel matrix.
The invention has the beneficial effects as follows: the invention solves the problem that existing coating abrasion performance is poor, erosion resistance is lower, improve the microtexture of material surface coating, structure, coating hardness is made to improve 50%, Young's modulus improves 8.5%-14.4%, thus the overall wear resisting property improving material surface, also there is significant effect to the comprehensive mechanical property improving improvement simultaneously; Described Fe-Gr-B-Si nano coating is applicable to multiple steel, is especially applicable to the sclerosis of some material surface needs, but requires not high, cheap again, save cost, reach again the situation of hardened material object.
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-Gr-B-Si nano coating, the mass percent of its component and each component is that Fe accounts for 42%, Gr accounts for 23%, B accounts for 17%, Si accounts for 15%, CBN accounts for 1.75%, trace element accounts for 1.25%; Described trace element comprises Go, Mo, W, Ni.
A kind of preparation method of Fe-Gr-B-Si nano coating; comprise the following steps: first adopt dry type comminuting method to obtain the nanometer ball of Fe, Gr, B and Si; adopt promoting agent protection method to mix Go, Mo, W, Ni again and obtain nanometer powder; add auxiliary agent CBN simultaneously, adopt hypersonic flame spraying technique to prepare Fe-Gr-B-Si nano coating afterwards on 4Cr13 die steel matrix.
The workpiece of described Fe-Gr-B-Si nano coating and the performance comparison experimental result of 20Cr steel matrix are in table 1.
The friction and wear behavior experimental result of the workpiece of described Fe-Gr-B-Si nano coating and the friction and wear behavior experimental result of 20Cr steel matrix contrast in table 2.
Embodiment two:
A kind of Fe-Gr-B-Si nano coating, the mass percent of its component and each component is that Fe accounts for 48%, Gr accounts for 12%, B accounts for 21%, Si accounts for 14%, CBN accounts for 3.75%, trace element accounts for 1.25%; Described trace element comprises Go, Mo, W, Ni.
A preparation method for Fe-Gr-B-Si nano coating, with embodiment one.
The workpiece of described Fe-Gr-B-Si nano coating and the performance comparison experimental result of 20Cr steel matrix are in table 1.
The friction and wear behavior experimental result of the workpiece of described Fe-Gr-B-Si nano coating and the friction and wear behavior experimental result of 20Cr steel matrix contrast in table 3.
Embodiment three:
A kind of Fe-Gr-B-Si nano coating, the mass percent of its component and each component is that Fe accounts for 54%, Gr accounts for 15%, B accounts for 16%, Si accounts for 11%, CBN accounts for 2.75%, trace element accounts for 1.25%; Described trace element comprises Go, Mo, W, Ni.
A preparation method for Fe-Gr-B-Si nano coating, with embodiment one.
The workpiece of described Fe-Gr-B-Si nano coating and the performance comparison experimental result of 20Cr steel matrix are in table 1.
The friction and wear behavior experimental result of the workpiece of described Fe-Gr-B-Si nano coating and the friction and wear behavior experimental result of 20Cr steel matrix contrast in table 4.
The workpiece of table 1Fe-Gr-B-Si nano coating and the performance comparison experimental result of 20Cr steel matrix:
Can be obtained by experimental data, Fe-Gr-B-Si nano coating effectively can reduce the porosity of workpiece surface, improves the bonding strength of workpiece surface, can increase substantially the microhardness of workpiece surface.
The friction and wear behavior of the Fe-Gr-B-Si nano coating of table 2 embodiment one and the friction and wear behavior contrast and experiment of 20Cr steel matrix:
The friction and wear behavior of the Fe-Gr-B-Si nano coating of table 3 embodiment two and the friction and wear behavior contrast and experiment of 20Cr steel matrix:
The friction and wear behavior of the Fe-Gr-B-Si nano coating of table 4 embodiment three and the friction and wear behavior contrast and experiment of 20Cr steel matrix:
From table 2, table 3 and table 4, Fe-Gr-B-Si nano coating has excellent wear resistance.
Fe-Gr-B-Si nano coating wear resistance, resistance to pressure and toughness are better, be easy to processing, be applicable to wearing piece and the position such as axle pump face, steamer box sealing face, because the element such as boron, silicon contained in Fe-Gr-B-Si nano coating has self-fluxing nature, can direct spraying, also can carry out re melting process, be more suitable for laser melting coating.
The Fe-Gr-B-Si nano coating hardness that Fe-Gr-B-Si nano coating is made reaches as high as HRC58, the coating thickness of Fe-Gr-B-Si nano coating can reach 2 millimeters, show that the density of the bonding strength of Fe-Gr-B-Si nano coating, tissue is better through test of many times, the density of Fe-Gr-B-Si nano coating can reach 10.14g/cm
3.
Fe-Gr-B-Si nano coating is better than conventional washcoat material, have the advantages that hardness is high, wear resistance is good, at identical conditions, the abrasion loss of 20Cr is 16 times of Fe-Gr-B-Si coating, visible Fe-Gr-B-Si nano coating has very large progress compared with conventional alloys material, is modern mechanical manufacturing and abrasion piece reparation important materials again.
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-Gr-B-Si nano coating, is characterized in that: the mass percent of its component and each component is that Fe accounts for 42%-61%, Gr and accounts for 11%-23%, B and account for 11%-23%, Si and account for that 11%-23%, CBN account for 1%-5%, trace element accounts for 1.25%; Described trace element comprises Go, Mo, W, Ni.
2. the preparation method of a Fe-Gr-B-Si nano coating; it is characterized in that: comprise the following steps: first adopt dry type comminuting method to obtain the nanometer ball of Fe, Gr, B and Si; adopt promoting agent protection method to mix Go, Mo, W, Ni again and obtain nanometer powder; add auxiliary agent CBN simultaneously, adopt hypersonic flame spraying technique to prepare Fe-Gr-B-Si nano coating afterwards on die steel matrix.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831163A (en) * | 2015-05-09 | 2015-08-12 | 芜湖鼎瀚再制造技术有限公司 | Fe-Mo-B-Al welding layer material and preparation method thereof |
| CN104831168A (en) * | 2015-05-09 | 2015-08-12 | 安徽鼎恒再制造产业技术研究院有限公司 | High-strength Fe-SiC-TiO2 coating material and preparation method thereof |
| CN104827023A (en) * | 2015-05-09 | 2015-08-12 | 安徽鼎恒再制造产业技术研究院有限公司 | High-strength Fe-SiC-Mo coating material and preparation method thereof |
| CN104846318A (en) * | 2015-05-09 | 2015-08-19 | 安徽鼎恒再制造产业技术研究院有限公司 | Fe-SiC-TiO2 nano coating material and preparation method thereof |
| CN104846308A (en) * | 2015-05-09 | 2015-08-19 | 安徽再制造工程设计中心有限公司 | Fe-SiC-Mo nano coating material and preparation method thereof |
| CN104842087A (en) * | 2015-05-09 | 2015-08-19 | 芜湖鼎瀚再制造技术有限公司 | Ni-Mn-Mo (nickel-Magnesium-Molybdenum) nano-welding layer and preparation method thereof |
| CN104858420A (en) * | 2015-05-09 | 2015-08-26 | 芜湖鼎恒材料技术有限公司 | Hard Fe-Si-Mn-W weld layer material and preparing method thereof |
| CN104928609A (en) * | 2015-06-24 | 2015-09-23 | 安徽再制造工程设计中心有限公司 | Co3O4-CrC-Fe nanomaterial and preparing method thereof |
| CN106011764A (en) * | 2016-06-15 | 2016-10-12 | 苏州市振业模具有限公司 | Manufacturing process for automobile plastic part mould |
| CN106077305A (en) * | 2016-06-15 | 2016-11-09 | 苏州市振业模具有限公司 | A kind of preparation method of automobile forming mould |
| CN110923608A (en) * | 2019-12-16 | 2020-03-27 | 安徽马钢表面技术股份有限公司 | Wear-resistant coating of sink roller shaft sleeve, preparation method and application |
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| US3655425A (en) * | 1969-07-01 | 1972-04-11 | Metco Inc | Ceramic clad flame spray powder |
| CN1676245A (en) * | 2005-03-31 | 2005-10-05 | 上海交通大学 | Method for preparing copper-plated graphite particle reinforced magnesium-base composite material |
| CN101353775A (en) * | 2008-09-17 | 2009-01-28 | 安泰科技股份有限公司 | Nanocrystalline alloy coating and preparation thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831163A (en) * | 2015-05-09 | 2015-08-12 | 芜湖鼎瀚再制造技术有限公司 | Fe-Mo-B-Al welding layer material and preparation method thereof |
| CN104831168A (en) * | 2015-05-09 | 2015-08-12 | 安徽鼎恒再制造产业技术研究院有限公司 | High-strength Fe-SiC-TiO2 coating material and preparation method thereof |
| CN104827023A (en) * | 2015-05-09 | 2015-08-12 | 安徽鼎恒再制造产业技术研究院有限公司 | High-strength Fe-SiC-Mo coating material and preparation method thereof |
| CN104846318A (en) * | 2015-05-09 | 2015-08-19 | 安徽鼎恒再制造产业技术研究院有限公司 | Fe-SiC-TiO2 nano coating material and preparation method thereof |
| CN104846308A (en) * | 2015-05-09 | 2015-08-19 | 安徽再制造工程设计中心有限公司 | Fe-SiC-Mo nano coating material and preparation method thereof |
| CN104842087A (en) * | 2015-05-09 | 2015-08-19 | 芜湖鼎瀚再制造技术有限公司 | Ni-Mn-Mo (nickel-Magnesium-Molybdenum) nano-welding layer and preparation method thereof |
| CN104858420A (en) * | 2015-05-09 | 2015-08-26 | 芜湖鼎恒材料技术有限公司 | Hard Fe-Si-Mn-W weld layer material and preparing method thereof |
| CN104928609A (en) * | 2015-06-24 | 2015-09-23 | 安徽再制造工程设计中心有限公司 | Co3O4-CrC-Fe nanomaterial and preparing method thereof |
| CN106011764A (en) * | 2016-06-15 | 2016-10-12 | 苏州市振业模具有限公司 | Manufacturing process for automobile plastic part mould |
| CN106077305A (en) * | 2016-06-15 | 2016-11-09 | 苏州市振业模具有限公司 | A kind of preparation method of automobile forming mould |
| CN110923608A (en) * | 2019-12-16 | 2020-03-27 | 安徽马钢表面技术股份有限公司 | Wear-resistant coating of sink roller shaft sleeve, preparation method and application |
| CN110923608B (en) * | 2019-12-16 | 2021-12-10 | 安徽马钢表面技术股份有限公司 | Wear-resistant coating of sink roller shaft sleeve, preparation method and application |
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| CN104233084B (en) | 2016-09-28 |
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