CN103741133A - Method for preparing titanium nitride/chromium nitride coating based on microwave technology - Google Patents
Method for preparing titanium nitride/chromium nitride coating based on microwave technology Download PDFInfo
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- CN103741133A CN103741133A CN201310754028.XA CN201310754028A CN103741133A CN 103741133 A CN103741133 A CN 103741133A CN 201310754028 A CN201310754028 A CN 201310754028A CN 103741133 A CN103741133 A CN 103741133A
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Abstract
The invention discloses a method for preparing a titanium nitride/chromium nitride coating based on the microwave technology. The method comprises the following steps: (1) coating the surface of a workpiece with a layer of uniform and dense titanium-chromium material layer, wherein the titanium-chromium material is formed by mixing titanium powder, chromium powder and an adhesive; (2) putting the coated workpiece into a microwave device, and performing microwave heating in a nitrogen atmosphere; and (3) performing surface cleaning and polishing of the workpiece after the microwave effect to obtain a titanium nitride/chromium nitride coating on the surface of the workpiece. With a high heating speed, the method disclosed by the invention can obtain the required coatings with different thickness; and the binding force between the coating and the workpiece is strong.
Description
(1) technical field
The present invention relates to a kind of coating manufacturing technology, the preparation method of especially a kind of titanium chromium (TiN/CrN) coating.
(2) background technology
Titanium nitride/chromium (TiN/CrN) coating is a kind of hard coat of novel excellent performance, with it, compared with high hardness, wear resistance, non-corrosibility and good mechanical property and high temperature oxidation resistance and be widely used in the numerous areas such as cutter, mould, in engineering, there is very large application prospect.At present, TiN/CrN coating is mainly by technology manufactures such as physical vapor deposition (PVD), chemical vapour depositions (CVD), and wherein chemical vapour deposition Yin Gaowen forms thermal stresses with its waste harm environment and progressively by physical vapor deposition, substituted; Physical vapor deposition low-temperature environment-friendly, but facility investment is large, part shape size is restricted, the coating of formation is thinner and coating is easily peeled off.
(3) summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method that applied microwave technology is prepared titanium nitride/chromium nitride coating, can at workpiece surface, form uniform coating quickly and efficiently, and workpiece size and heating position thereof are not limited by size, shape, can obtain than physical vapor deposition (PVD), the thicker coating of chemical vapour deposition (CVD)
To achieve the above object of the invention, the present invention adopts following technical scheme:
A preparation method for titanium nitride/chromium nitride coating, comprising:
(1) at workpiece surface, apply even, the fine and close titanium chromium material layer of one deck, described titanium chromium material is to be mixed by titanium valve, chromium powder and binding agent;
(2) workpiece having applied is put into microwave device, under nitrogen atmosphere, carry out microwave heating;
(3) workpiece after microwave action is carried out to surface cleaning, polishing, at workpiece surface, obtain titanium nitride/chromium nitride coating.
Further, described titanium valve can be the powder that pure titanium or titanium compound are made, and described titanium compound can be titanium nitride or ferro-titanium; Described chromium powder can pure chromium or the powder made of ferrochrome; Described binding agent can select single organism, inorganics or by gas chromatography and inorganics, preferred organic binder bond, such as epoxy resin glue.The preparation of titanium chromium material is first made powdery by He Ge source, titanium source conventionally, is then mixed into paste with binding agent.
Further, in described titanium chromium material, the mass ratio of titanium valve and chromium powder total mass and binding agent is between 5:1 to 2:1, and the mass ratio of described titanium valve and chromium powder is between 3:2 to 2:3.
Further, the microwave power that described microwave heating adopts is 10～20KW, and be 0.1～1 hour heat-up time.
In the present invention, workpiece material can be carbon steel or steel alloy.
In the present invention, in step (1), the coating thickness of high titanium chromium material is not limit, and can determine as required, and by controlling microwave power and obtaining the coating of required different thickness heat-up time, the titanium nitride coating thickness of general preparation is in 1～30 μ m scope.
Owing to adopting technical scheme as above, the present invention has following superiority:
1, rate of heating is fast.Metal works and contain titanium and chromium metallic paint under microwave action by rapid heating, and can be by controlling microwave power and obtaining the coating of required different thickness heat-up time.
2, between coating and workpiece, bonding force is strong.Under microwave action, workpiece surface and coated material are heated to molten state simultaneously, produce metallurgical reaction, between the coating of cooling rear acquisition and workpiece, form metallurgical binding.
(4) embodiment
Below in conjunction with concrete mode, the present invention is described further:
Embodiment 1:
At workpiece surface, evenly apply even, the fine and close paste containing 30% titanium, 30% chromium and 40% epoxy adhesive of one deck, then the workpiece having applied is put into microwave device, under nitrogen protection, in certain power (10KW) microwave, place 10 minutes; After work-piece cools, remove surperficial unreacted paste polishing, at workpiece surface, form titanium nitride/chromium nitride coating that thickness is about 2 μ m.
Embodiment 2:
At workpiece surface, evenly apply even, the fine and close paste containing 40% titanium, 40% chromium and 20% epoxy adhesive of one deck, then the workpiece having applied is put into microwave device, under nitrogen protection, in certain power (20KW) microwave, place 30 minutes; After work-piece cools, remove surperficial unreacted paste polishing, at workpiece surface, form titanium nitride/chromium nitride coating that thickness is about 5 μ m.
Claims (7)
1. based on microwave technology, prepare a method for titanium nitride/chromium nitride coating, comprise the steps:
(1) at workpiece surface, apply even, the fine and close titanium chromium material layer of one deck; Described titanium chromium material is mixed by titanium valve, chromium powder and binding agent;
(2) workpiece having applied is put into microwave device, under nitrogen atmosphere, carry out microwave heating;
(3) workpiece after microwave action is carried out to surface cleaning, polishing, at workpiece surface, obtain titanium nitride/chromium nitride coating.
2. the method for claim 1, is characterized in that: described titanium valve is the powder that pure titanium or titanium compound are made, and described titanium compound is titanium nitride or ferro-titanium; Described chromium powder is the powder that pure chromium or ferrochrome are made.
3. method as claimed in claim 2, is characterized in that: described binding agent is organic binder bond.
4. method as claimed in claim 3, is characterized in that: described binding agent is epoxy resin glue.
5. the method as described in one of claim 1～4, is characterized in that: in described titanium chromium material, titanium valve and the total mass of chromium powder and the mass ratio of binding agent are between 5:1 to 2:1, and the mass ratio of described titanium valve and chromium powder is between 3:2 to 2:3.
6. the method as described in one of claim 1～4, is characterized in that: the microwave power that described microwave heating adopts is 10～20KW, and be 0.1～1 hour heat-up time.
7. method as claimed in claim 5, is characterized in that: the microwave power that described microwave heating adopts is 10～20KW, and be 0.1～1 hour heat-up time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754028.XA CN103741133A (en) | 2013-12-30 | 2013-12-30 | Method for preparing titanium nitride/chromium nitride coating based on microwave technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310754028.XA CN103741133A (en) | 2013-12-30 | 2013-12-30 | Method for preparing titanium nitride/chromium nitride coating based on microwave technology |
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| CN103741133A true CN103741133A (en) | 2014-04-23 |
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| CN201310754028.XA Pending CN103741133A (en) | 2013-12-30 | 2013-12-30 | Method for preparing titanium nitride/chromium nitride coating based on microwave technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349944A (en) * | 2015-11-12 | 2016-02-24 | 浙江百纳橡塑设备有限公司 | Titanium nitride chromium coating and double glow plasma seepage preparing method thereof |
| CN106687615A (en) * | 2014-10-07 | 2017-05-17 | 爱沃特Nv株式会社 | Method for altering surface of metal, and metallic product |
| CN107488830A (en) * | 2016-06-13 | 2017-12-19 | 沈阳科蓝纳米涂层技术有限公司 | A kind of preparation method of chromium nitride coating |
| CN107737932A (en) * | 2017-10-26 | 2018-02-27 | 西北工业大学 | A kind of integrated laser increasing material manufacturing method that titanium or titanium alloy constituency is strengthened |
| CN113634747A (en) * | 2021-08-13 | 2021-11-12 | 四川铭泰顺硬质合金有限公司 | Hard alloy cutter sintering device |
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| JPH06157174A (en) * | 1992-11-18 | 1994-06-03 | Nippon Steel Corp | Formation of tin coating film |
| JP2007084896A (en) * | 2005-09-26 | 2007-04-05 | Tohoku Univ | Nitride-coating method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106687615A (en) * | 2014-10-07 | 2017-05-17 | 爱沃特Nv株式会社 | Method for altering surface of metal, and metallic product |
| CN106687615B (en) * | 2014-10-07 | 2020-07-17 | 爱沃特Nv株式会社 | Method for modifying surface of metal and metal product |
| CN105349944A (en) * | 2015-11-12 | 2016-02-24 | 浙江百纳橡塑设备有限公司 | Titanium nitride chromium coating and double glow plasma seepage preparing method thereof |
| CN107488830A (en) * | 2016-06-13 | 2017-12-19 | 沈阳科蓝纳米涂层技术有限公司 | A kind of preparation method of chromium nitride coating |
| CN107737932A (en) * | 2017-10-26 | 2018-02-27 | 西北工业大学 | A kind of integrated laser increasing material manufacturing method that titanium or titanium alloy constituency is strengthened |
| CN107737932B (en) * | 2017-10-26 | 2019-08-06 | 西北工业大学 | A kind of integrated laser increasing material manufacturing method that titanium or titanium alloy constituency are strengthened |
| CN113634747A (en) * | 2021-08-13 | 2021-11-12 | 四川铭泰顺硬质合金有限公司 | Hard alloy cutter sintering device |
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Application publication date: 20140423 |