CN201448461U - Valve spool of valve - Google Patents
Valve spool of valve Download PDFInfo
- Publication number
- CN201448461U CN201448461U CN2009200443305U CN200920044330U CN201448461U CN 201448461 U CN201448461 U CN 201448461U CN 2009200443305 U CN2009200443305 U CN 2009200443305U CN 200920044330 U CN200920044330 U CN 200920044330U CN 201448461 U CN201448461 U CN 201448461U
- Authority
- CN
- China
- Prior art keywords
- solid solution
- layer
- valve
- valve spool
- infiltration layer
- Prior art date
- 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 - Lifetime
Links
- 230000008595 infiltration Effects 0.000 claims abstract description 18
- 238000001764 infiltration Methods 0.000 claims abstract description 18
- 239000006104 solid solution Substances 0.000 claims abstract description 17
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000005121 nitriding Methods 0.000 abstract description 7
- 238000005728 strengthening Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 238000005256 carbonitriding Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The utility model discloses a valve spool of a valve, comprising a valve spool body, wherein the valve spool body is compounded with a strengthening solid solution infiltration layer the thickness of which is from 10 to 30 mu m, and the strengthening solid solution infiltration layer is a carburized layer, or a nitriding layer or a carbonitriding layer. Compared with the prior art, the utility model is characterized in that the valve spool body is compounded with the strengthening solid solution infiltration layer the hardness and the wear resistance of which are improved greatly, and the microhardness reaches 1000HV. Compared with the original base material, the wear resistance is improved by 2 to 3 times, and the mechanical property is improved greatly.
Description
Technical field
The utility model relates to a kind of valve spool, particularly a kind of good mechanical property and corrosion resistant valve spool.
Background technique
Spool is used for the vitals of the valve of fluid pipe-line connection, this product is widely used in all trades and professions such as oil, chemical industry, papermaking, food, pharmacy, aviation, transportation, for etch-proof requirement, spool adopts the Austenitic Stainless Steel manufacturing in a large number, but the intensity of austenitic stainless steel material own is low, poor mechanical property, the bite-resistant performance is poor, can not adapt to the requirement of pressure and sealing, also there is pair spool to heat-treat to improve intensity, but all be to have sacrificed decay resistance, make corrosion resistance significantly worsen, can not reach required requirement.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of good mechanical property and corrosion resistant valve spool are provided.
For solving the problems of the technologies described above, the utility model adopts following technological scheme, and the utility model valve spool comprises the spool body, is compounded with one and strengthens the solid solution infiltration layer on described spool body.
The thickness of described reinforcement solid solution infiltration layer is 10～30 μ m.
Described reinforcement solid solution infiltration layer is carburized case, nitriding layer or carbonitrided case.
Utilize the low pressure plasma glow discharge technique between 350～450 ℃, Austenitic Stainless Steel to be carried out rapid carburization, nitriding or carbonitriding surface peening, at pressure 100～150Pa, handle the nitrogen or the carbon supersaturated austenite solid solution strengthened layer of the high hardness that can obtain thickness 10-30 μ m in 60～120 minutes.
Compared with prior art, the utlity model has following characteristics:
1, a compound reinforcement solid solution infiltration layer on the spool body, hardness of this layer and wear resistance all have raising by a relatively large margin. and micro-penetration hardness reaches 1000HV, compares with the protocorm material, and wear resistance has improved 2～3 times, has improved mechanical property greatly.One
2, strengthening the solid solution infiltration layer is nitriding layer or carburized case, utilizes the low pressure plasma glow discharge technique that Austenitic Stainless Steel is carried out low-temperature ion nitriding, Carburization Treatment.Austenitic Stainless Steel after the processing belongs to a kind of do not have the nitrogen that chromium nitride or chromium carbide separate out or the supersaturated solid solution of carbon. and supersaturation nitrogen in this infiltration steel or carbon cause that the austenite lattice distorts, and make the hardness of infiltration layer and wear resistance that by a relatively large margin raising all be arranged.
3, strengthening the solid solution infiltration layer is carbonitrided case, because the maximum nitrogen content in the Austenitic Stainless Steel infiltration layer after handling appears at the different degree of depth respectively with maximum carbon content, the high hardness that existing ion nitriding is handled has the high permeability formation thickness of ion carburizing, glowdischarge carburizing processing and good hardness gradient again.
Description of drawings
Fig. 1 is the utility model spool main body structure schematic representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, as shown in Figure 1, it comprises spool body 1, on spool body 1 outer surface, be compounded with one and strengthen solid solution infiltration layer 2, the thickness of strengthening solid solution infiltration layer 2 is 10～30 μ m, and strengthening solid solution infiltration layer 2 can be carburized case, nitriding layer or carbonitrided case.
Claims (3)
1. a valve spool comprises spool body (1), it is characterized in that: be compounded with one and strengthen solid solution infiltration layer (2) on described spool body (1).
2. valve spool according to claim 1 is characterized in that: the thickness of described reinforcement solid solution infiltration layer (2) is 10～30 μ m.
3. valve spool according to claim 1 is characterized in that: described reinforcement solid solution infiltration layer (2) is carburized case, carburized case or carbonitrided case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200443305U CN201448461U (en) | 2009-06-03 | 2009-06-03 | Valve spool of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200443305U CN201448461U (en) | 2009-06-03 | 2009-06-03 | Valve spool of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448461U true CN201448461U (en) | 2010-05-05 |
Family
ID=42553177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200443305U Expired - Lifetime CN201448461U (en) | 2009-06-03 | 2009-06-03 | Valve spool of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448461U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756724A (en) * | 2011-04-27 | 2012-10-31 | 通用汽车环球科技运作有限责任公司 | Corrosion-resistant armature and valve for anti-lock brake systems |
| CN103615547A (en) * | 2013-11-21 | 2014-03-05 | 合肥通用机械研究院 | Nuclear-grade small-caliber manual bellows globe valve |
-
2009
- 2009-06-03 CN CN2009200443305U patent/CN201448461U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756724A (en) * | 2011-04-27 | 2012-10-31 | 通用汽车环球科技运作有限责任公司 | Corrosion-resistant armature and valve for anti-lock brake systems |
| US8807159B2 (en) | 2011-04-27 | 2014-08-19 | GM Global Technology Operations LLC | Corrosion-resistant armature and valve for anti-lock brake systems |
| CN102756724B (en) * | 2011-04-27 | 2015-09-16 | 通用汽车环球科技运作有限责任公司 | For anticorrosive spool and the valve of anti-skid brake system |
| CN103615547A (en) * | 2013-11-21 | 2014-03-05 | 合肥通用机械研究院 | Nuclear-grade small-caliber manual bellows globe valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102828145A (en) | Low temperature gas carburizing method for realizing reinforcement and corrosion resistance of austenitic stainless steel | |
| KR20060047713A (en) | Carburized Nitride Quenched Martensite Stainless Steel | |
| CN104651858B (en) | Composite heat treatment process for improving surface compactness of nitro-carburizing strengthened layer | |
| JP2005531694A (en) | Surface modified stainless steel | |
| CN101648334A (en) | Manufacturing technique of austenitic stainless steel cold-rolled plate with good surface performance | |
| EP2405028A3 (en) | Method of heat treatment for steel, method of producing mechanical component, and mechanical component | |
| JP2004003435A (en) | Fuel injection valve for internal combustion engine and method for manufacturing the same | |
| CN201448461U (en) | Valve spool of valve | |
| CN110965014A (en) | Steel ball carbonitriding process | |
| US11840765B2 (en) | Nitriding process for carburizing ferrium steels | |
| CN201053545Y (en) | Pipe joint ferrule clamp | |
| JP2015533930A (en) | Method for heat treating steel components and steel components | |
| CN201448460U (en) | Valve rod for needle-typed stop valve | |
| CN100451423C (en) | Pipe joint rear cutting ferrule and heat processing method | |
| WO2011115255A1 (en) | Spring steel and surface treatment method for steel material | |
| CN102409313A (en) | Cutter surface treatment method | |
| CN201502793U (en) | High anticorrosion and wear-resistance nitriding steel oil pipe | |
| CN105369257A (en) | Surface thermal treatment method for high-carbon bearing steel precision part | |
| CN104372288A (en) | Gear with high surface hardness, high wearing resistance and high tenacity and treating furnace of gear | |
| US10202666B2 (en) | Process for treating steel alloys for gears | |
| CN109763092A (en) | A kind of surface treatment method enhancing oil gas fracturing unit truck pump housing corrosion-proof wear | |
| CN201502521U (en) | Pump cylinder surface layer structure of oil-well pump | |
| CN103628021A (en) | Drop-feed ferrite gas nitrocarburizing technology | |
| CN110359008A (en) | A kind of combination process and its application of carburizing and QPQ processing | |
| CN103469151B (en) | A kind of method of cooling improving soft steel nitridation product hardness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |