CN104911529A - High-strength WC-ZrO2-Si nano-coating material and preparation method thereof - Google Patents
High-strength WC-ZrO2-Si nano-coating material and preparation method thereof Download PDFInfo
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- CN104911529A CN104911529A CN201510236277.9A CN201510236277A CN104911529A CN 104911529 A CN104911529 A CN 104911529A CN 201510236277 A CN201510236277 A CN 201510236277A CN 104911529 A CN104911529 A CN 104911529A
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- 239000000463 material Substances 0.000 title claims abstract description 21
- 239000002103 nanocoating Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 8
- 239000011573 trace mineral Substances 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims description 4
- 238000012387 aerosolization Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000000576 coating method Methods 0.000 abstract description 17
- 239000011248 coating agent Substances 0.000 abstract description 16
- 239000000956 alloy Substances 0.000 abstract description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- 239000002077 nanosphere Substances 0.000 abstract 2
- 239000012190 activator Substances 0.000 abstract 1
- 238000009689 gas atomisation Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000002086 nanomaterial Substances 0.000 abstract 1
- 239000011858 nanopowder Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007750 plasma spraying Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to a high-strength WC-ZrO2-Si nano-coating material and a preparation method thereof. The nano-coating material comprises, by mass, 75.04% of WC, 11% of ZrO2, 13% of Si and 0.96% of trace elements, and the trace elements comprise Cr, Mn and B. The preparation method of the coating material comprises the following steps: carrying out a gas atomization process to prepare WC-ZrO2-Si nanospheres; and mixing the prepared nanospheres with Cr, Mn and B by adopting an activator protection process to prepare nanopowder. The nano-material has the advantages of uniform morphology, complete particle, good structure, good macroscopic performances, high hardness and good wear resistance, is better than traditional coating materials, and is a great improvement in comparison with traditional alloy materials.
Description
Technical field
The present invention relates to technical field of hot, is high strength WC-ZrO specifically
2-Si nano-coating material and preparation method thereof.
Background technology
The program of thermospray operation is less, and the engineering time is shorter, and efficiency is high, both economical.Along with the raising of thermospray application requiring and the expansion in field, the particularly progress of spraying technology itself, as the high energy day by day of spraying equipment and superior, performance improves gradually, hot-spraying techniques obtains development at full speed nearly ten years, not only Application Areas is greatly expanded, and this technology develops into the various functional coating of preparation by the protective coating that early stage preparation is general; Large quantities of product manufacturing is developed into by the maintenance of single workpiece; Prepared to develop into by single coating and comprise Product Failure Analysis, surface preparation, the development of coated material and equipment, select, coat system design and coating post-treatment are in interior paint finishing engineering; To become in material surface scientific domain a very active subject.And in modern industry, form picture casting gradually, forging, weldering and the such independently materials processing technology of thermal treatment, become industrial sector and save precious materials, save energy, improves the quality of products, extend product work-ing life, reduce costs, improve the important process means of work efficiency, obtain applying more and more widely in the every field of national economy.
In field of thermal spray, we are special working-surface " coating ", and manufacturing the method for work of coating " thermospray ", it is the general name adopting various thermal source to carry out spraying and surfacing.
But, along with the progress of technology and the raising of people's research level, and people's going deep into that nanotechnology is familiar with, conventional spray paint material can not meet the service requirements of people, and the extraordinary workpiece used under various mal-condition and the spray material for the manufacture of extraordinary workpiece are more and more subject to the favor of people.
Summary of the invention
Poor in order to solve conventional coatings wear resistance, the problems such as hardness is lower, the invention provides high strength WC-ZrO
2-Si nano-coating material and preparation method thereof.
Technical problem to be solved by this invention realizes by the following technical solutions:
High strength WC-ZrO
2-Si nano-coating material, the mass percent of its component and each component is that WC accounts for 75.04%, ZrO
2account for 11%, Si accounts for 13%, trace element accounts for 0.96%.
WC is black hexagonal crystal, gray, and be the powder with metalluster, microhardness is 17800MPa.WC matter is hard, spring rate is also large, can effectively improve nano coating hardness.
ZrO
2hardness, inferior to diamond, effectively can improve hardness and the wear resistance of coating.
Si fusing point is high, can improve the high thermal resistance of nano coating.
Described trace element comprises Cr, Mn, B.Cr can improve the rotproofness of workpiece.
High strength WC-ZrO
2the preparation method of-Si nano-coating material, comprises the following steps:
(1) aerosolization legal system is adopted to obtain WC-ZrO
2the nanometer ball of-Si;
(2) employing promoting agent protection method mixed C r, Mn, B obtain nanometer powder.
The invention has the beneficial effects as follows: the present invention is better than conventional washcoat material, hardness is high, wear resistance good, has very large progress compared with conventional alloys material, at identical conditions, and WC-ZrO
2the amount of resistance to wearing of-Si nano coating is about 11 times of common coating, and this shows WC-ZrO prepared by plasma
2-Si nano coating has excellent abrasive wear resistance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the present invention's weave construction under a scanning electron microscope and crystal morphology.
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:
High strength WC-ZrO
2-Si nano-coating material, the mass percent of its component and each component is that WC accounts for 75.04%, ZrO
2account for 11%, Si accounts for 13%, trace element accounts for 0.96%.
Described trace element comprises Cr, Mn and B.
High strength WC-ZrO
2the preparation method of-Si nano-coating material, comprises the following steps:
(1) aerosolization legal system is first adopted to obtain WC-ZrO
2the nanometer ball of-Si;
(2) nanometer ball obtained in step (1) employing promoting agent protection method mixed C r, Mn, B are obtained nanometer powder.
See Fig. 1, adopt plasma spraying technology obtained WC-ZrO on the rod class workpiece being matrix with 20Cr steel
2-Si coating, the matrix with described coating and bonding strength, microhardness, void content and the abrasive wear resistance contrast and experiment without the matrix of described coating are in table 1:
Table 1 WC-ZrO
2the performance comparison experimental result of-Si nano coating and 20Cr steel matrix:
| Experimental group is numbered | Porosity (AREA%) | Bonding strength (MPa) | Microhardness (HV) |
| 1 | 0.569 | 76.8 | 1194 |
| 2 | 0.523 | 71.6 | 1139 |
| 3 | 0.574 | 74.1 | 1254 |
| 4 | 0.513 | 73.6 | 1243 |
| Mean value | 0.544 | 74 | 1207 |
| Comparative group | 0.846 | 58 | 756 |
Adopt plasma spraying technology obtained WC-ZrO2-Si coating on the rod class workpiece being matrix with 20Cr steel, the abrasion loss contrast and experiment of the matrix with described coating and the matrix without described coating is in table 2:
Table 2 WC-ZrO
2the abrasion loss contrast and experiment of-Si nano coating and 20Cr steel matrix:
| Experimental group is numbered | Before wearing and tearing (g) | After wearing and tearing (g) | Abrasion loss (g) |
| 1 | 41.5687 | 41.4576 | 0.0011 |
| 2 | 41.3658 | 41.3647 | 0.0011 |
| 3 | 41.6874 | 41.6865 | 0.0009 |
| Comparative group | 41.9874 | 41.9765 | 0.0109 |
From table 1 and table 2, WC-ZrO
2the excellent combination property of-Si nano coating, wear resistance is good.
Bonding strength of the present invention, grasping force are higher, and hardness ranges up to HRC60, WC-ZrO
2-Si nano coating density can reach 8.13g/cm
3left and right, coating thickness can reach 4 millimeters, density is well 0.82, be applicable to plasma spraying, available spraying steel have: 2Cr13,4Cr13,9Cr18,4Cr5W2VSi, 8Cr3 etc., also can spray some to the higher workpiece of hardness requirement or tool steel surface process, to improve workpiece surface hardness and wear resistance.
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. high strength WC-ZrO
2-Si nano-coating material, is characterized in that: the mass percent of its component and each component is that WC accounts for 75.04%, ZrO
2account for 11%, Si accounts for 13%, trace element accounts for 0.96%;
Described trace element comprises Cr, Mn, B.
2. high strength WC-ZrO
2the preparation method of-Si nano-coating material, is characterized in that: comprise the following steps:
(1) aerosolization legal system is adopted to obtain WC-ZrO
2the nanometer ball of-Si;
(2) employing promoting agent protection method mixed C r, Mn, B obtain nanometer powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236277.9A CN104911529A (en) | 2015-05-09 | 2015-05-09 | High-strength WC-ZrO2-Si nano-coating material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236277.9A CN104911529A (en) | 2015-05-09 | 2015-05-09 | High-strength WC-ZrO2-Si nano-coating material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104911529A true CN104911529A (en) | 2015-09-16 |
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|---|---|---|---|
| CN201510236277.9A Pending CN104911529A (en) | 2015-05-09 | 2015-05-09 | High-strength WC-ZrO2-Si nano-coating material and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405355A (en) * | 2001-08-04 | 2003-03-26 | 山东科技大学机械电子工程学院 | Method for depositing paint-coat of metal surface, especially for gradient paint-coat |
| US20030180565A1 (en) * | 2000-09-21 | 2003-09-25 | Christian Herbst-Dederichs | Thermally applied coating for piston rings, consisting of mechanically alloyed powders |
| CN101265575A (en) * | 2008-05-09 | 2008-09-17 | 天津市汇利通金属表面技术有限公司 | Metallurgical cast iron roll surface laser nanometer ceramic alloying processing method |
| CN104264024A (en) * | 2014-09-11 | 2015-01-07 | 芜湖鼎瀚再制造技术有限公司 | Ni45-ZrO2 nano coating and preparation method thereof |
| CN104357790A (en) * | 2014-10-30 | 2015-02-18 | 安徽鼎恒再制造产业技术研究院有限公司 | A kind of WC-ZrO2 nano-coating and its preparation method |
-
2015
- 2015-05-09 CN CN201510236277.9A patent/CN104911529A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030180565A1 (en) * | 2000-09-21 | 2003-09-25 | Christian Herbst-Dederichs | Thermally applied coating for piston rings, consisting of mechanically alloyed powders |
| CN1405355A (en) * | 2001-08-04 | 2003-03-26 | 山东科技大学机械电子工程学院 | Method for depositing paint-coat of metal surface, especially for gradient paint-coat |
| CN101265575A (en) * | 2008-05-09 | 2008-09-17 | 天津市汇利通金属表面技术有限公司 | Metallurgical cast iron roll surface laser nanometer ceramic alloying processing method |
| CN104264024A (en) * | 2014-09-11 | 2015-01-07 | 芜湖鼎瀚再制造技术有限公司 | Ni45-ZrO2 nano coating and preparation method thereof |
| CN104357790A (en) * | 2014-10-30 | 2015-02-18 | 安徽鼎恒再制造产业技术研究院有限公司 | A kind of WC-ZrO2 nano-coating and its preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 孙家枢等: "《热喷涂科学与技术》", 31 October 2013, 冶金工业出版社 * |
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Application publication date: 20150916 |
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