CN104831146A - Ni-TiO2 nano welding layer and preparation method thereof - Google Patents
Ni-TiO2 nano welding layer and preparation method thereof Download PDFInfo
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- CN104831146A CN104831146A CN201510233186.XA CN201510233186A CN104831146A CN 104831146 A CN104831146 A CN 104831146A CN 201510233186 A CN201510233186 A CN 201510233186A CN 104831146 A CN104831146 A CN 104831146A
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Abstract
The invention relates to a Ni-TiO2 nano welding layer and a preparation method thereof. The Ni-TiO2 nano welding layer comprises the following components in percentage by mass: 19-34% of Ni, 68-81% of TiO2, 0.5-1.5% of Al2O3 and 1-2% of an additive which is Gr. The preparation method comprises the following steps: preparing Ni, TiO2 and Al2O3 into nano-spheres by adopting a gas atomization method, then uniformly mixing the nano-spheres with ground Gr to prepare nano welding wires, and finally welding the welding wires on the surface of a part to form the nano welding layer. The nano welding wires are prepared by mixing Ni, TiO2 and Al2O3, and then the welding layer is formed on the surface of the part by adopting a welding manner, so that the wear resistance and corrosion resistance of the part are improved, the hardness of the surface is improved, the performance requirements of the actual work of the part are met, and finally the service life of the part is prolonged.
Description
Technical field
The present invention relates to submerged arc welding technical field, specifically a kind of Ni-TiO
2nanometer layer and preparation method thereof.
Background technology
The technology of welding is comparatively ripe, is widely used in component of machine and connects, increases in material field, according to different component welding demand, can select the welding rod of differing materials.Wearing and tearing are component of machine transmissions be connected in one of comparatively common phenomenon, the performance of component also declines along with increasing the weight of of the degree of wear, after exceeding wear limit, the performance of component then sharply declines, work-ing life shortens, for the component of critical positions, then the potential safety hazard also existed.Maintainer can dismantle the comparatively serious component of wearing and tearing in maintenance, does not usually take corresponding recovery measure, directly scraps and cause the serious wasting of resources; Also have and adopt the mode of welding to carry out increasing material, then polished finish is with the installation requirements making scantlings of the structure realistic, but due to the Material selec-tion of welding rod unreasonable, make the poor-performing of layer, void content is higher, wear resistance and erosion resistance poor, improvement is not brought to the performance of component.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Ni-TiO
2nanometer layer and preparation method thereof.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of Ni-TiO
2nanometer layer, comprises the component of following mass percent: Ni accounts for 19% ~ 34%, TiO
2account for 68% ~ 81%, Al
2o
3account for 0.5% ~ 1.5%, additive accounts for 1% ~ 2%;
Described additive is Gr, i.e. Graphene, is a kind of Two-dimensional Carbon material, and be the general designation of single-layer graphene, bilayer graphene and few layer graphene, quality is hard, and greatly improve overall hardness, material transparent, can not have influence on the color of layer.
A kind of Ni-TiO
2the preparation method of nanometer layer, described method steps is as follows: described Ni, TiO
2, Al
2o
3all adopt aerosolization legal system to obtain nanometer ball, then with the Gr Homogeneous phase mixing after milled processed after make nanometer welding wire, be finally welded on component surface and form nanometer layer.Material adapted of the present invention is reasonable, TiO
2adhesive power own is comparatively strong, stable chemical performance, and fusing point is high, and resistance to elevated temperatures is superior, in order to promote the performance of nanometer layer entirety; The nanometer layer made has higher bonding strength, and wear resistance, erosion resistance are comparatively strong, realize, to while component structural repairing sizes, improving the use properties of component, extending the work-ing life of component.
The best in quality per-cent of described each component is: Ni accounts for 22.5%, TiO
2account for 75%, Al
2o
3account for 1%, Gr and account for 1.5%, be prepared with reference to this proportioning of the present invention and form nanometer layer, make performance reach best.
The invention has the beneficial effects as follows: the present invention is by Ni, TiO
2, Gr, Al
2o
3after being mixed and made into nanometer welding wire, utilize the mode of welding to form layer on the surface of component, thus improve wear resistance and the erosion resistance of component, improve the hardness on surface, meet the performance requirement of component real work, finally extend the work-ing life of component.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the present invention being set forth further.
Embodiment one:
A kind of Ni-TiO
2nanometer layer, comprises the component of following mass percent: Ni accounts for 22.5%, TiO
2account for 75%, Al
2o
3account for 1%, Gr and account for 1.5%.
A kind of Ni-TiO
2the preparation method of nanometer layer, described method steps is as follows: described Ni, TiO
2, Al
2o
3all adopt aerosolization legal system to obtain nanometer ball, then with the Gr Homogeneous phase mixing after milled processed after make nanometer welding wire, be finally welded on component surface and form nanometer layer.
Embodiment two:
A kind of Ni-TiO
2nanometer layer, comprises the component of following mass percent:
Ni accounts for 19%, TiO
2account for 79.5%, Al
2o
3account for 0.5%, Gr and account for 1%.
A kind of Ni-TiO
2the preparation method of nanometer layer, described method steps is as follows: described Ni, TiO
2, Al
2o
3all adopt aerosolization legal system to obtain nanometer ball, then with the Gr Homogeneous phase mixing after milled processed after make nanometer welding wire, be finally welded on component surface and form nanometer layer.
Embodiment three:
A kind of Ni-TiO
2nanometer layer, comprises the component of following mass percent:
Ni accounts for 28%, TiO
2account for 68.5%, Al
2o
3account for 1.5%, Gr and account for 2%.
A kind of Ni-TiO
2the preparation method of nanometer layer, described method steps is as follows: described Ni, TiO
2, Al
2o
3all adopt aerosolization legal system to obtain nanometer ball, then with the Gr Homogeneous phase mixing after milled processed after make nanometer welding wire, be finally welded on component surface and form nanometer layer.
Embodiment four:
A kind of Ni-TiO
2nanometer layer, comprises the component of following mass percent:
Ni accounts for 26%, TiO
2account for 72%, Al
2o
3account for 1%, Gr and account for 1%.
A kind of Ni-TiO
2the preparation method of nanometer layer, described method steps is as follows: described Ni, TiO
2, Al
2o
3all adopt aerosolization legal system to obtain nanometer ball, then with the Gr Homogeneous phase mixing after milled processed after make nanometer welding wire, be finally welded on component surface and form nanometer layer.
In order to prove actual effect of the present invention, the special submerged arc welding technology that adopts has prepared nanometer layer on roll, after embodiment one to embodiment four is implemented, test the bonding strength of layer, microhardness, void content and abrasive wear resistance respectively, and utilize XRD to carry out Phase Structure Analysis to layer.Experimental result is as follows:
| Numbering | Porosity (AREA%) | Bonding strength (MPa) | Microhardness (HV) |
| Embodiment one | 0.246 | 90.2 | 631 |
| Embodiment two | 0.321 | 87.4 | 583 |
| Embodiment three | 0.363 | 89.5 | 608 |
| Embodiment four | 0.337 | 83.5 | 592 |
| Mean value | 0.317 | 87.7 | 603.5 |
| Comparative group | 0.541 | 71.5 | 481 |
Wherein, comparative group is common alloy wire.
As known in above-mentioned experimental data, compared with the layer made with common alloy wire, the nanometer layer bonding strength that the present invention makes is high, hardness is high, erosion resistance, wear resistance are strong, heterogeneous microstructure is even, and decrease void content, hardness can reach HRC38, layer thickness can reach 6 millimeters, thus improves the performance of component to be repaired.
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 by the restriction of step embodiment; the just principle of the present invention described in step 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 (3)
1. a Ni-TiO
2nanometer layer, is characterized in that: the component comprising following mass percent:
Ni accounts for 19% ~ 34%, TiO
2account for 68% ~ 81%, Al
2o
3account for 0.5% ~ 1.5%, additive accounts for 1% ~ 2%;
Described additive is Gr.
2. a kind of Ni-TiO according to claim 1
2nanometer layer, is characterized in that: the best in quality per-cent of described each component is: Ni accounts for 22.5%, TiO
2account for 75%, Al
2o
3account for 1%, Gr and account for 1.5%.
3. a kind of Ni-TiO according to claim 1
2the preparation method of nanometer layer, is characterized in that: described method steps is as follows: described Ni, TiO
2, Al
2o
3all adopt aerosolization legal system to obtain nanometer ball, then with the Gr Homogeneous phase mixing after milled processed after make nanometer welding wire, be finally welded on component surface and form nanometer layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233186.XA CN104831146A (en) | 2015-05-09 | 2015-05-09 | Ni-TiO2 nano welding layer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233186.XA CN104831146A (en) | 2015-05-09 | 2015-05-09 | Ni-TiO2 nano welding layer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104831146A true CN104831146A (en) | 2015-08-12 |
Family
ID=53809339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510233186.XA Pending CN104831146A (en) | 2015-05-09 | 2015-05-09 | Ni-TiO2 nano welding layer and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175781A (en) * | 2018-10-23 | 2019-01-11 | 郑州大学 | A kind of ship and the mating flux-cored wire of Marine Engineering Steel EH500 |
Citations (6)
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|---|---|---|---|---|
| JPS5074542A (en) * | 1973-11-05 | 1975-06-19 | ||
| JPS5540064A (en) * | 1978-09-14 | 1980-03-21 | Kawasaki Steel Corp | Blow-hole resistance covered electrode |
| CN102513741A (en) * | 2011-12-27 | 2012-06-27 | 安泰科技股份有限公司 | Two-phase stainless steel welding electrode and manufacturing method thereof |
| CN103205667A (en) * | 2013-04-03 | 2013-07-17 | 北京工业大学 | Thermal spraying composite coating material for piston ring and preparation method of thermal spraying composite coating material |
| CN103949796A (en) * | 2014-05-05 | 2014-07-30 | 常州新德焊材科技有限公司 | Austenitic stainless steel flux-cored wire having no oxidation tint on surface of welding joint |
| CN104526188A (en) * | 2014-12-24 | 2015-04-22 | 洛阳双瑞特种合金材料有限公司 | Seamless flux-cored wire with postwelding stress relieving heat treatment |
-
2015
- 2015-05-09 CN CN201510233186.XA patent/CN104831146A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074542A (en) * | 1973-11-05 | 1975-06-19 | ||
| JPS5540064A (en) * | 1978-09-14 | 1980-03-21 | Kawasaki Steel Corp | Blow-hole resistance covered electrode |
| CN102513741A (en) * | 2011-12-27 | 2012-06-27 | 安泰科技股份有限公司 | Two-phase stainless steel welding electrode and manufacturing method thereof |
| CN103205667A (en) * | 2013-04-03 | 2013-07-17 | 北京工业大学 | Thermal spraying composite coating material for piston ring and preparation method of thermal spraying composite coating material |
| CN103949796A (en) * | 2014-05-05 | 2014-07-30 | 常州新德焊材科技有限公司 | Austenitic stainless steel flux-cored wire having no oxidation tint on surface of welding joint |
| CN104526188A (en) * | 2014-12-24 | 2015-04-22 | 洛阳双瑞特种合金材料有限公司 | Seamless flux-cored wire with postwelding stress relieving heat treatment |
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| Title |
|---|
| 王学武编: "《金属表面处理技术》", 30 June 2008, 北京：机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175781A (en) * | 2018-10-23 | 2019-01-11 | 郑州大学 | A kind of ship and the mating flux-cored wire of Marine Engineering Steel EH500 |
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Application publication date: 20150812 |
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