CN103122779A - Novel air valve - Google Patents
Novel air valve Download PDFInfo
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- CN103122779A CN103122779A CN 201110368657 CN201110368657A CN103122779A CN 103122779 A CN103122779 A CN 103122779A CN 201110368657 CN201110368657 CN 201110368657 CN 201110368657 A CN201110368657 A CN 201110368657A CN 103122779 A CN103122779 A CN 103122779A
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- valve
- air valve
- wear
- rod
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Abstract
The invention relates to a novel air valve which comprises a valve rod and a valve plate, wherein the valve plate is arranged at one end of the valve rod and provided with a tapered working face, and a wear-resistant layer is arranged at the other end of the valve rod. A layer of wear-resistant and corrosion-resistant alloy is welded on the tapered working face of the valve plate of the novel air valve in an overlaying mode with a special process so that the air valve is not prone to abrasion when working. The air valve adopts 21-4N steel as a whole, and thus has temperature resistance, resistance to high-temperature oxidation, corrosion resistance and anti-impacting performance. The type of steel can not enhance the hardness of the rod end with the quenching process, so a martensitic grade stainless steel sheet with a given size is welded at the rod end with a special process to meet the requirements for promoting the wear-resistant and anti-impacting performance of the rod end face of the air valve. After the high-frequency quenching process, the martensitic grade stainless steel sheet is high in strength and hardness, good in plasticity, toughness and surface hardness and thus capable of promoting the service life of the air valve.
Description
Technical field
The present invention relates to the engine part technical field, relate in particular to the engine valve actuating mechanism technical field.
Background technique
The most employing by camshaft drive valve actuating push rod of engine breathing door mechanism opens and closes the inlet and outlet valve by rocking arm.Up to the present, the shaft of valve actuating push rod all adopts single metal manufacturing, is by the steel manufacturing at first, and also useful aluminum alloy is made in recent years.The working surface of valve block is owing to being subjected to high frequent impact, and very easily wearing and tearing were generally to adopt heat treatment process to increase local hardness, to strengthen the wear and shock-resistant performance in the past.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 was excessive, easily breaking, appearred in embrittlement, and technological requirement is high, and the performance performance index are held and are difficult for.The patent No. provides a kind of valve for 2009202566776 Novel valve for this reason; it arranges a wearing layer at the valve block end; can effectively improve shock-resistant, the wear-resisting property of valve block working surface; improve the working life of valve; but the existing valve stem the other end is without any protective layer; be subject to impacting, easily being damaged when rubbing, need further to improve.
Summary of the invention
The purpose of this invention is to provide a kind of Novel valve, make valve two ends all have good shock resistance, wear-resisting property, make it have good service behaviour and long working life.
The technical solution used in the present invention is for this reason: the present invention includes valve rod and valve block, described valve block is arranged on the end of valve rod one end, is provided with the taper work face on valve block, and described valve rod the other end end is provided with wearing layer.
Described taper work face is provided with the alloy wear-resisting layer.
Advantage of the present invention is: Novel valve of the present invention adopt the special process built-up welding on the taper work face of valve block one deck wear-resistant, corrosion resistant alloy makes valve in when work, and is not easy to wear; The whole 21-4N that adopts of valve, it has heatproof, resistance to high temperature oxidation, corrosion-resistant and impact-resistant performance, this type steel cannot adopt quenching technical to improve rod end hardness, wear-resisting and impact resistance, adopt special process to weld the martensite type stainless steel sheets of a given size at boom end for satisfied raising valve stem end face, has high strength after processing by high frequency hardening, high hardness, good plasticity, toughness and surface hardness, thus can extend the working life of improving valve.
Description of drawings
Fig. 1 is structural representation of the present invention
In figure, 1 is the alloy wear-resisting layer, the 2nd, and valve, 3 Martensitic Stain Less Steel sheets.
Embodiment
The present invention is provided with alloy wear-resisting layer 1 on the taper work face on the valve block of valve 2.Alloy wear-resisting layer 1 adopts anticorrosive, wear-resisting alloy welding powder, or stupalith, is provided with certain thickness Martensitic Stain Less Steel sheet 3 on valve 2, uses quenching technology to carry out enhancement process, reaches the purpose of prolongation in working life.
Martensitic Stain Less Steel sheet 3 of the present invention can be 4Cr9Si2.
Claims (2)
1. Novel valve, is characterized in that, comprises valve rod and valve block, and described valve block is arranged on the end of valve rod one end, is provided with the taper work face on valve block, it is characterized in that, described valve rod the other end end is provided with wearing layer.
2. Novel valve according to claim 1, is characterized in that, described taper work face is provided with the alloy wear-resisting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110368657 CN103122779A (en) | 2011-11-20 | 2011-11-20 | Novel air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110368657 CN103122779A (en) | 2011-11-20 | 2011-11-20 | Novel air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103122779A true CN103122779A (en) | 2013-05-29 |
Family
ID=48453893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110368657 Pending CN103122779A (en) | 2011-11-20 | 2011-11-20 | Novel air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103122779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401686A (en) * | 2016-12-21 | 2017-02-15 | 湖南天雁机械有限责任公司 | Enhanced engine valve and manufacturing process thereof |
-
2011
- 2011-11-20 CN CN 201110368657 patent/CN103122779A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401686A (en) * | 2016-12-21 | 2017-02-15 | 湖南天雁机械有限责任公司 | Enhanced engine valve and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130529 |