CN2937709Y - Nut of steel-base compsite double-metal valve steam - Google Patents
Nut of steel-base compsite double-metal valve steam Download PDFInfo
- Publication number
- CN2937709Y CN2937709Y CN 200620087763 CN200620087763U CN2937709Y CN 2937709 Y CN2937709 Y CN 2937709Y CN 200620087763 CN200620087763 CN 200620087763 CN 200620087763 U CN200620087763 U CN 200620087763U CN 2937709 Y CN2937709 Y CN 2937709Y
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- CN
- China
- Prior art keywords
- base steel
- steel
- cuprum alloy
- valve
- stem mut
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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
A composite steel bimetallic valve-stem nut, belonging to valve-stem nut and other sliding nuts is provided, which is composed of a steel bimetallic nut body (2) and a copper alloy layer. When the invention is compared with the existing technologies, the utility model integrates the integrated mechanical properties of the high-quality carbon steel or the high temperature resistant steel and the abrasion reducing capability of the copper alloy by means of the special techniques so as to form the bimetallic composite materials; and therefore the steel bimetallic valve-stem nut has the advantages that the intensity is high with a perfect wear resistance, moreover the quality is reliable and the cost is low, combined with the improved integrated mechanical properties which arrives at the standard of the high pressure valve-stem nut, and thus an industrialized production can be realized finally.
Description
Technical field
Base steel bimetal composite Stem Mut belongs to Stem Mut and other sliding nut classes.It specifically is a kind of a pair of friction pair that constitutes with trapezoidal thread with valve rod in the valve cover that places.
Background technique
The present employed Stem Mut of valve industry is single antifriction metal material and forms.Commonly used is cast copper alloy and ductile Ni-resist cast iron etc.In valve mechanism, Stem Mut generally places in the valve gap and constitutes a pair of friction pair with valve rod with trapezoidal thread.Bear flowing pressure and guarantee the unlatching of valve, function such as close and seal.Its operating conditions has determined to have enough intensity, favorable manufacturability energy, anti-attrition performance and temperature and pressure ratio, and when promptly operating temperature raise, should guarantee needed to reduce less with working pressure.But the Stem Mut of above-mentioned two kinds of materials is difficult to satisfy above-mentioned requirements.As ductile Ni-resist cast iron, though good wear, higher intensity and anti-corrosion performance are arranged, its proportioning smelting process complexity, the fragility of itself is difficult to greatly ensure the quality of products, adding the nickel metal is that rare metal has been difficult to promotional value, can only be used in the valve of a few countries standard.And the cast copper alloy anti-attrition is good, but its temperature and pressure, intensity are all very different than steel part, and especially casting defect often causes reduction in strength, and safety coefficient reduces, and difficult quality is reliably guaranteed.In the mesohigh valve, have to carry out proportioning copper smelting alloy, cause the noble metal use amount to increase, product cost is increased substantially with electrolytic copper.Someone adopts copper (aluminium base) alloy silk explosion technique to be combined on the trapezoidal thread of internal thread the Stem Mut of steel body.As disclosed model utility title in " Chinese patent " on September 21st, 1994: base steel abrasion-proof duplex metal Stem Mut, the patent No.: ZL93232332.4, patent application day: on November 20th, 1993, patentee: Liu Xinyi.But because composite surface is flank of thread, area of contact is little, compound insecure, can not produce in batches, so product is introduced to the market.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of intensity height, wear resistance is good, cost is low, reliable in quality, the base steel bimetal composite Stem Mut that can produce in batches.
The technological scheme that its technical problem that solves the utility model adopts is: this base steel bimetal composite Stem Mut is characterized in that: be to be composited by base steel outer nut body and copper alloy layer.
Be to be composited by base steel outer nut body and Cuprum alloy internal thread.
Stem Mut is to be composited by Cuprum alloy outer nut body and base steel internal thread.
Jacket layer is that Cuprum alloy by fusion forms with the bluk recombination of base steel outer nut under the action of the centrifugal in Cuprum alloy internal thread/Cuprum alloy.
Cuprum alloy outer nut body is that the Cuprum alloy by fusion is composited with the base steel internal thread under pressure.
Working principle is:
Be to be processed into base steel overcoat or nut body workpiece with Fine Steel Casting iron or high-temperature steel earlier, through after the anti-oxidation processing, again with cover or internal thread in the Cuprum alloy of fusion, cast in base steel overcoat or the nut body, carry out centrifugal then or pressurize compound, base steel overcoat or wear resistance all surpass the Cuprum alloy of common casting, the invar base was done anti-oxidation processing, after the Cuprum alloy casting of fusion, through insulation after a while, just formed the interpenetrative effect of bimetal, its adhesive strength has surpassed the intensity of Cuprum alloy itself.
Compared with prior art, the beneficial effect that base steel bimetal composite Stem Mut of the present utility model is had is: this base steel bimetal composite Stem Mut is with the intensity of Fine Steel Casting iron or high-temperature steel and good comprehensive mechanical performance and Cuprum alloy good wear performance, combine by special process, constitute double metallic composite material.Owing to adopted at the Cuprum alloy internal thread or the interior jacket layer of base steel nut body and fusion compoundly, both can make that original Cuprum alloy does not have pore, trachoma, casting defect such as loosen, can make low intensive Cuprum alloy improve its degree of compaction again.Comprehensive mechanical performances such as intensity, wear resistance have been improved greatly.Owing to adopted method centrifugal or pressurization complex copper alloy, made the Cuprum alloy of fusion compound with base steel under the effect of centrifugal force or pressure.Composite surface is a base steel outer nut dignity, and area of contact is big, makes bimetal compound firmly, and steady quality is reliable, is suitable for industrialized production.Centrifugal osmose process makes Cuprum alloy not have pore, trachoma, casting defect such as loose, and has improved the degree of compaction of Cuprum alloy, has strengthened the combination properties such as wear resistance of Cuprum alloy.Make bimetal compound firmly, the survey report that shows through " mechanical industry universal machine product detect institute " " mechanical industry valve products quality supervision inspection center " shows, can be directly used in the high pressure valve stem nut with the Bimetallic valve stem nut of the method manufacturing of steel based compositing copper alloy of the present invention.Meet the requirement of API.591-2003 " inspection of quality of oil refining valve " standard after testing.It is low to have cost simultaneously, advantages such as reliable in quality.
Description of drawings
Fig. 1 is that the utility model base steel bimetal composite Stem Mut structure is cutd open and shown schematic representation.
Wherein: 1, base steel nut body 2, Cuprum alloy internal thread
Fig. 1 is the most preferred embodiment of the utility model base steel bimetal composite Stem Mut, is described further below in conjunction with 1 pair of the utility model base steel of accompanying drawing bimetal composite Stem Mut:
Embodiment
With reference to accompanying drawing 1: this base steel bimetal composite Stem Mut, by base steel nut body 1,2 two kinds of metallic material of Cuprum alloy internal thread are composited.
Working principle and working procedure are as follows: be processed into base steel nut body 2 with carbon constructional quality steel or high-temperature steel earlier, after compounding, Cuprum alloy with fusion casts in the base steel nut body 1 again, carry out centrifugal compound then, because the interpenetrative effect of bimetal, the intensity and the wear resistance that form one deck densification surpass former Cuprum alloy, again according to the machine shaping that requires of Cuprum alloy internal thread 1.
Stem Mut also can be made by base steel nut body 1, the structure that jacket layer is composited in the Cuprum alloy.Can be processed into different screw threads as requested.
Stem Mut is also to make the structure that is composited by Cuprum alloy outer nut body and base steel internal thread.
When the outer nut body of Stem Mut is Cuprum alloy, be that the Cuprum alloy by fusion is composited with the base steel internal thread under pressure.
Claims (5)
1, base steel bimetal composite Stem Mut is characterized in that: be to be composited by base steel outer nut body (2) and copper alloy layer.
2, base steel bimetal composite Stem Mut according to claim 1 is characterized in that: be to be composited by base steel outer nut body (2) and Cuprum alloy internal thread (1).
3, base steel bimetal composite Stem Mut according to claim 1 is characterized in that: Stem Mut is to be composited by Cuprum alloy outer nut body and base steel internal thread.
4, base steel bimetal composite Stem Mut according to claim 1 and 2 is characterized in that: jacket layer is that Cuprum alloy by fusion is composited with base steel outer nut body (2) under the action of the centrifugal in Cuprum alloy internal thread (1)/Cuprum alloy.
5, base steel bimetal composite Stem Mut according to claim 2 is characterized in that: Cuprum alloy outer nut body is that the Cuprum alloy by fusion is composited with the base steel internal thread under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087763 CN2937709Y (en) | 2006-08-09 | 2006-08-09 | Nut of steel-base compsite double-metal valve steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087763 CN2937709Y (en) | 2006-08-09 | 2006-08-09 | Nut of steel-base compsite double-metal valve steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937709Y true CN2937709Y (en) | 2007-08-22 |
Family
ID=38361736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620087763 Expired - Fee Related CN2937709Y (en) | 2006-08-09 | 2006-08-09 | Nut of steel-base compsite double-metal valve steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937709Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179679A (en) * | 2011-03-02 | 2011-09-14 | 淮安市琥达液压机械有限公司 | Composite screw of high-pressure double-screw multiphase pump for discharging lightweight oil and machining method thereof |
| CN111173952A (en) * | 2020-01-18 | 2020-05-19 | 上海亚奥阀门有限公司 | Forged steel bidirectional hard sealing floating ultralow temperature ball valve |
-
2006
- 2006-08-09 CN CN 200620087763 patent/CN2937709Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179679A (en) * | 2011-03-02 | 2011-09-14 | 淮安市琥达液压机械有限公司 | Composite screw of high-pressure double-screw multiphase pump for discharging lightweight oil and machining method thereof |
| CN111173952A (en) * | 2020-01-18 | 2020-05-19 | 上海亚奥阀门有限公司 | Forged steel bidirectional hard sealing floating ultralow temperature ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: ZHANG WANYU Owner name: GUANGZHOU VICTORY COMPOUND METAL TECHNOLOGY CO., L Free format text: FORMER OWNER: LIU MINGQIANG Effective date: 20101013 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 256100 SHANDONG VICTORY COMPOUND METAL CO., LTD., ECONOMIC DEVELOPMENT ZONE, YIYUAN COUNTY, ZIBO CITY, SHANDONG PROVINCE TO: 510000 WANGXIAPAI (FACTORY BUILDING A-2), FENGMUYUAN COMMUNITY, GONGAN VILLAGE, XINTANG TOWN, ZENGCHENG CITY, GUANGZHOU CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101013 Address after: 510000, Guangzhou, Xintang town of Zengcheng public security village Maple yuan looking scared row (workshop A-2) Patentee after: Guangzhou Victory Compound Metal Technology Co., Ltd. Address before: Shandong Economic Development Zone, Yiyuan County, Shandong city in Zibo Province, only 256100 had compound Pioneer Metals Corporation Co-patentee before: Zhang Wanyu Patentee before: Liu Mingqiang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20150809 |
|
| EXPY | Termination of patent right or utility model |