CN203335161U - Superhard nanometer coating valve - Google Patents
Superhard nanometer coating valve Download PDFInfo
- Publication number
- CN203335161U CN203335161U CN2013203348440U CN201320334844U CN203335161U CN 203335161 U CN203335161 U CN 203335161U CN 2013203348440 U CN2013203348440 U CN 2013203348440U CN 201320334844 U CN201320334844 U CN 201320334844U CN 203335161 U CN203335161 U CN 203335161U
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- CN
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- Prior art keywords
- superhard
- valve
- nanometer coating
- stainless steel
- austenitic stainless
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a superhard nanometer coating valve. The superhard nanometer coating valve comprises an austenitic stainless steel valve substrate. A Ti (Cr)-Al-N-based superhard nanometer coating is arranged on the surface of the austenitic stainless steel valve substrate. According to the superhard nanometer coating valve, the wear-resistant and corrosion-resistant Ti-Al-N / Cr-Al-N-based superhard nanometer coating is formed on the whole surface of the austenitic stainless steel valve substrate through a chemical processing technique, so that the valve is not prone to abrasion during operation; the thermal stability temperature and high anti-oxidizing temperature of the Ti-Al-N / Cr-Al-N-based superhard nanometer coating are both higher than 1100 DEG C, the hardness of the Ti-Al-N / Cr-Al-N-based superhard nanometer coating is higher than 40GPa, the bonding strength of the Ti-Al-N / Cr-Al-N-based superhard nanometer coating and the austenitic stainless steel valve substrate is higher than 100N, and therefore the service life of the valve can be prolonged.
Description
Technical field
The utility model relates to a kind of nano superhard coating valve, belongs to the engine valve actuating mechanism technical field.
Background technique
Engine breathing door mechanism is most adopt the valve actuating push rod that driven by camshaft by rocking arm open and close into, outlet valve.
Up to the present, the shaft of valve actuating push rod all adopts single metal manufacture, is that also useful titanium is aluminium base in recent years by the steel manufacture at first
Alloy is manufactured.The working surface of valve block is owing to being subject to high frequent impact, and very easily wearing and tearing were generally adopt heat treatment process and its working surface hardfacing alloy is increased to local hardness in the past, to strengthen the wear and shock-resistant performance.But, due to the performance limitations of material, be difficult to the hardness of this working surface is processed and can be withstood shocks for a long time.When hardness is excessive, easily breaking, appear in embrittlement.Technological requirement is high, and performance index are held and are difficult for.
The model utility content
The utility model is for above-mentioned defect, and purpose is to provide a kind of nano superhard coating valve with high wear resistance, impact resistance.
The technical solution adopted in the utility model is for this reason: the utility model comprises austenitic stainless steel gas door matrix, and austenitic stainless steel gas door matrix surface is established Ti-Al-N or Cr-Al-N base nano superhard coating.
The utility model has the advantages that: it is wear-resistant that the utility model adopts the chemical treatment technology method to form one deck on the whole surface of austenitic stainless steel gas door matrix, erosion-resisting Ti-Al-N or Cr-Al-N base nano superhard coating, make valve not easy to wear when work, the thermal stable temperature of Ti-Al-N or Cr-Al-N base nano superhard coating and high-temperature oxidation resistant temperature are all higher than 1100 ℃, hardness is higher than 40GPa, the adhesive strength of Ti-Al-N or Cr-Al-N base nano superhard coating and austenitic stainless steel gas door matrix is greater than 100N, thereby can extend the working life of improving valve.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1 is that Ti-Al-N or Cr-Al-N base nano superhard coating, 2 are austenitic stainless steel gas door matrix.
Embodiment
The utility model comprises austenitic stainless steel gas door matrix 2, and Ti-Al-N or Cr-Al-N base nano superhard coating 1 are established in austenitic stainless steel gas door matrix 2 surfaces.
The Al formed in gradient-structure " interior diffusion " effect has suppressed the external diffusion speed of Ti, Fe element, thereby has improved the high-temperature oxidation resistance of Ti (Cr)-Al-N coating.This programme adopts multi sphere ion plating technology; this coating is mainly improved high-temperature behavior and is applied to automotive engine valves; increase substantially high temperature resistant, corrosion-resistant, the abrasion resistance properties of valve; the thermal stable temperature of coating and high-temperature oxidation resistant temperature are all higher than 1100 ℃; hardness is higher than 40GPa, and the adhesive strength of coating and matrix is greater than 100N, and this coating has higher micro-penetration hardness; and with the increase of Cr content, hardness number first increases and then decreases; Coating has higher film-substrate cohesion; The introducing of Cr not only is conducive to improve film-substrate cohesion, also beneficial to the oxidative stability of (Ti, Cr) N coating, has good oxidative stability in the time of 700 ℃.
Claims (1)
1. a nano superhard coating valve, is characterized in that, comprises austenitic stainless steel gas door matrix, and the Austenitic Stainless Steel matrix surface is established Ti (Cr)-Al-N base nano superhard coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203348440U CN203335161U (en) | 2013-06-10 | 2013-06-10 | Superhard nanometer coating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203348440U CN203335161U (en) | 2013-06-10 | 2013-06-10 | Superhard nanometer coating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335161U true CN203335161U (en) | 2013-12-11 |
Family
ID=49703838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203348440U Expired - Fee Related CN203335161U (en) | 2013-06-10 | 2013-06-10 | Superhard nanometer coating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335161U (en) |
-
2013
- 2013-06-10 CN CN2013203348440U patent/CN203335161U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225200 Jiangsu Province, Yangzhou city Jiangdu District Ding Huo Zhen Shuang Hua Cun Yangzhou Guanghui internal combustion engine accessories limited company Patentee after: Yangzhou Guanghui Beijing Great Automotive Components Company Limited Address before: 225200 Jiangsu Province, Yangzhou city Jiangdu District Ding Huo Zhen Shuang Hua Cun Yangzhou Guanghui internal combustion engine accessories limited company Patentee before: Yangzhou Guanghui Interal Combustion Engine Accessory Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20190610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |