CN100356095C - Ball valve spool and producing method thereof - Google Patents
Ball valve spool and producing method thereof Download PDFInfo
- Publication number
- CN100356095C CN100356095C CNB2004100253270A CN200410025327A CN100356095C CN 100356095 C CN100356095 C CN 100356095C CN B2004100253270 A CNB2004100253270 A CN B2004100253270A CN 200410025327 A CN200410025327 A CN 200410025327A CN 100356095 C CN100356095 C CN 100356095C
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- Prior art keywords
- spheroid
- interior pipe
- ball valve
- valve core
- ball
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 35
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
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- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
The present invention relates to a valve core of a ball valve, which comprises a hollow sphere and an inner tube, wherein the hollow sphere is cut into an upper cross section and a lower cross section which are parallel and equal; the sphere is provided with a groove which controls the rotation of the valve core; the periphery of the end of the sphere is directly and tightly connected with the outer surface of the inner tube. The manufacturing method of the present invention comprises the steps that the hollow sphere of a certain size is chosen, a groove is formed on the surface by stamping, an upper straight opening and a lower straight opening are cut off on a machine tool, and an inner hole is bored till the inner hole accords with a size; the inner tube of a corresponding size is chosen; an outer ring of certain thickness is cut off from the lower end of the inner tube, the inner tube and the sphere are assembled then, and the inner tube and the lower end of the sphere are in clamping fixation and sealing connection; the assembled body is put in a mould, the inner tube and the upper end of the sphere are pressed into a blank in tight connection; superfluous materials are turned off from the upper end and the lower end of the blank, and the upper end and the lower end of the blank are polished and cleaned. The present invention adopts pressing tight fixation, so the problems of gas holes, sand inclusion and impurities in casting and shaping are avoided. The present invention has the advantages of increased yield of products, reliable use and simple and convenient operation.
Description
Technical field
The present invention relates to a kind of manufacture method of ball valve core.
Background technique
The ball valve core of prior art adopts casting mostly or is shaped and is processed into base, is shaped through processing again.Owing to exist such as defectives such as pore, burning into sand, impurity in the casting, leak in producing or leak outside, thereby make yield rate very low, this is to the cost of producing ball valve core is increased.Even qualified in addition casting ball valve core because casting technique makes the spool face became uneven even, influences the sealing and the reliability of valve.Compare the ball valve core that most advanced and sophisticated employing upsetting pressure method is produced at present, organizing of material is close, and quality is better relatively, but equipment is required height, and the ball valve wall unevenness is even, and is big to the consumption of copper material, the cost height.
Summary of the invention
The objective of the invention is to overcome above-mentioned ball valve core adopt cast form and upsetting pressure method produce in the low shortcoming of yield rate, provide that a kind of quality is good, yield rate is high, the preparation method of the ball valve core of low cost of manufacture and good reliability.
For this reason, the present invention takes following technological scheme:
A kind of manufacture method of ball valve core, described ball valve core comprises cutting upper and lower parallel mutually prismatic hollow ball and the interior pipe that runs through described spheroid, have the groove of the described valve core rotation of control on the described spheroid, the end periphery of described spheroid directly closely is connected with the outer surface of described interior pipe.The preparation method of the said ball valve core in front comprises the steps: a, adopts bulging process preparation to have the hollow ball of groove copper pipe, uses bulging process usually, and the workpiece that bulging is qualified cuts upper and lower straight mouthful and boring endoporus to required size on lathe; The interior pipe of b, selection corresponding size; C, certain thickness outer shroud is removed in the lower end turning of interior pipe, make outside the underpart ring size corresponding with straight mouthful of size of hollow ball, then with interior pipe and spheroid assembling, pipe is tightly connected with the fixing of spheroid underpart in making; D, above-mentioned assembly is put into mould, interior pipe and spheroid upper end portion are pressed into close-connected blank; E, unnecessary material is removed in the upper and lower end turning of above-mentioned blank, polishing, clean.
For working life and the precision that makes valve further improves,, between steps d and step e, increase by an operating procedure f: add scolder at interior pipe and joint, spheroid end, add heat-sealable except that by the above-mentioned steps preparation.
Spheroid described in the preparation method is the spheroid that copper pipe adopts the bulging process preparation.
Described bulging process is the polyurethane bulging process.
Or described bulging process is a hydraulic bulging process.
Employing the present invention have the following advantages: 1, adopt bulging process to prepare spheroid, then interior pipe and ball seal are fixed, avoided the problem of pore, burning into sand and impurity in the casting, improved the yield rate of product; 2, improved operational safety; 3, reduced cost of production; 4, simple, convenient.
Description of drawings
Fig. 1 is a compacting seal ball-valve valve core structure schematic representation of the present invention;
Fig. 2 is compacting of the present invention, flange seal ball-valve valve core structure schematic representation.
Embodiment
With reference to accompanying drawing 1, a kind of ball valve core, comprise and cut the interior pipe 2 that upper and lower parallel mutually prismatic hollow ball 1 is arranged and run through described spheroid that have the groove of the described valve core rotation of control on the described spheroid, the end periphery of described spheroid directly closely is connected with the outer surface of described interior pipe.The manufacture method of this ball valve core comprises that step is as follows: a, adopt polyurethane bulging process preparation to have the hollow ball 1 of groove copper pipe, the workpiece that bulging is qualified cuts upper and lower straight mouthful and boring endoporus to setting size on lathe; The interior pipe 2 of b, selection corresponding size; C, certain thickness outer shroud is removed in the lower end turning of interior pipe, make outside the underpart ring size corresponding with straight mouthful of size of hollow ball, then with interior pipe and spheroid assembling, pipe is tightly connected with the fixing of spheroid underpart in making; D, above-mentioned assembly is put into mould, interior pipe and spheroid upper end portion are pressed into close-connected blank; E, unnecessary material is removed in the upper and lower end turning of above-mentioned blank, polishing, clean.
With reference to accompanying drawing 2, a kind of ball valve core, comprise and cut the interior pipe 2 that upper and lower parallel mutually prismatic hollow ball 1 is arranged and run through described spheroid, have the groove of the described valve core rotation of control on the described spheroid, one end periphery of described spheroid directly closely is connected with the outer surface of described interior pipe, and the other end flanging sealing and fixing of described interior pipe is on described spheroid.The manufacture method of this ball valve core comprises that step is as follows: a, adopt hydraulic bulging process preparation to have the hollow ball 1 of groove copper pipe, the workpiece that bulging is qualified cuts upper and lower straight mouthful and boring endoporus to setting size on lathe; The interior pipe 2 of b, selection corresponding size; C, with interior pipe one end periphery outward flanging, then with the assembling of interior pipe and spheroid, an end flange of pipe 2 in above-mentioned is connected described spheroid 1 by epoxy sealing; D, above-mentioned assembly is put into mould, interior pipe and spheroid the other end are pressed into close-connected blank; E, unnecessary material is removed in the upper and lower end turning of above-mentioned blank, polishing, clean.
Embodiment 3
With reference to accompanying drawing 2, a kind of ball valve core, comprise and cut the interior pipe 2 that upper and lower parallel mutually prismatic hollow ball 1 is arranged and run through described spheroid, have the groove of the described valve core rotation of control on the described spheroid, one end periphery of described spheroid directly closely is connected with the outer surface of described interior pipe, and the other end flanging sealing and fixing of described interior pipe is on described spheroid.The manufacture method of this ball valve core comprises that step is as follows: a, adopt hydraulic bulging process preparation to have the hollow ball 1 of groove copper pipe, the workpiece that bulging is qualified cuts upper and lower straight mouthful and boring endoporus to setting size on lathe; The interior pipe 2 of b, selection corresponding size; C, with interior pipe one end periphery outward flanging, then with the assembling of interior pipe and spheroid, an end flange of pipe 2 in above-mentioned is connected described spheroid 1 by sealed with brazing; D, above-mentioned assembly is put into mould, interior pipe and spheroid the other end are pressed into close-connected blank; E, unnecessary material is removed in the upper and lower end turning of above-mentioned blank, polishing, clean.
Embodiment 4
With reference to accompanying drawing 1, a kind of ball valve core, comprise and cut the interior pipe 2 that upper and lower parallel mutually prismatic hollow ball 1 is arranged and run through described spheroid that have the groove of the described valve core rotation of control on the described spheroid, the outer surface of the end periphery of described spheroid and described interior pipe directly is tightly connected.The manufacture method of this ball valve core comprises that step is as follows: a, adopt polyurethane bulging process preparation to have the hollow ball 1 of groove copper pipe, the workpiece that bulging is qualified cuts upper and lower straight mouthful and boring endoporus to setting size on lathe; The interior pipe 2 of b, selection corresponding size; C, certain thickness outer shroud is removed in the lower end turning of interior pipe, make outside the underpart ring size corresponding with straight mouthful of size of hollow ball, then with interior pipe and spheroid assembling, pipe is tightly connected with the fixing of spheroid underpart in making; D, above-mentioned assembly is put into mould, interior pipe and spheroid upper end portion are pressed into close-connected blank; F, add scolder, add heat-sealable in interior pipe and joint, spheroid end; E, unnecessary material is removed in the upper and lower end turning of above-mentioned blank, polishing, clean.
Claims (5)
1, a kind of manufacture method of ball valve core, described ball valve core comprises cutting upper and lower parallel mutually prismatic hollow ball and the interior pipe that runs through described spheroid, have the groove of the described valve core rotation of control on the described spheroid, the end periphery of described spheroid directly closely is connected with the outer surface of described interior pipe; It is characterized in that: the manufacture method of described ball valve core comprises the steps:
The hollow ball of a, selection certain size, surperficial jet-bedding cuts upper and lower straight mouth and boring endoporus to size on lathe;
The interior pipe of hole dimension coupling in b, selection and the above-mentioned hollow ball end;
C, certain thickness outer shroud is removed in the lower end turning of interior pipe, make outside the underpart ring size corresponding with straight mouthful of size of hollow ball, then with interior pipe and spheroid assembling, pipe is tightly connected with the fixing of spheroid underpart in making;
D, above-mentioned assembly is put into mould, interior pipe and spheroid upper end portion are pressed into close-connected blank;
E, unnecessary material is removed in the upper and lower end turning of above-mentioned blank, polishing, clean.
2, the manufacture method of ball valve core as claimed in claim 1 is characterized in that: also include step f between steps d and e: add scolder at interior pipe and joint, spheroid end, add heat-sealable.
3, the manufacture method of ball valve ball core as claimed in claim 1 is characterized in that: described spheroid is the spheroid that copper pipe adopts the bulging process preparation.
4, the manufacture method of ball valve ball core as claimed in claim 3 is characterized in that: described bulging process is the polyurethane bulging process.
5, the manufacture method of ball valve ball core as claimed in claim 3 is characterized in that: described bulging process is a hydraulic bulging process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100253270A CN100356095C (en) | 2004-06-10 | 2004-06-10 | Ball valve spool and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100253270A CN100356095C (en) | 2004-06-10 | 2004-06-10 | Ball valve spool and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707146A CN1707146A (en) | 2005-12-14 |
| CN100356095C true CN100356095C (en) | 2007-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100253270A Expired - Fee Related CN100356095C (en) | 2004-06-10 | 2004-06-10 | Ball valve spool and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100356095C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211190B (en) * | 2011-05-20 | 2012-09-19 | 北京科技大学 | Mold and method for preparing hard alloy hollow sphere |
| CN102601850B (en) * | 2012-03-16 | 2014-04-16 | 奉化市釜用密封件有限公司 | Method for processing valve element of silicon carbide ball valve |
| CN102615292B (en) * | 2012-04-10 | 2013-10-23 | 永高股份有限公司 | Machining method for ball core of water feeding ball valve |
| CN103115163B (en) * | 2013-03-08 | 2015-10-28 | 杨建国 | A kind of ball valve core and production method thereof |
| CN104653812B (en) * | 2015-03-05 | 2017-01-11 | 许晨寒 | Ball valve core and machining method thereof |
| CN109866092A (en) * | 2018-11-28 | 2019-06-11 | 自贡硬质合金有限责任公司 | A kind of ball valve processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3518742A (en) * | 1967-08-30 | 1970-07-07 | Sem Tec Inc | Cavity wall valve balls and a method of manufacturing them |
| JPH11320018A (en) * | 1998-05-11 | 1999-11-24 | Kosho Ko | Forming method of ball shaped member of ball valve |
| CN2490374Y (en) * | 2001-06-22 | 2002-05-08 | 沈海星 | Closed hollow ball valve |
| CN1111112C (en) * | 1998-11-16 | 2003-06-11 | 吴乐瑞 | Production method of ball valve |
-
2004
- 2004-06-10 CN CNB2004100253270A patent/CN100356095C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3518742A (en) * | 1967-08-30 | 1970-07-07 | Sem Tec Inc | Cavity wall valve balls and a method of manufacturing them |
| JPH11320018A (en) * | 1998-05-11 | 1999-11-24 | Kosho Ko | Forming method of ball shaped member of ball valve |
| CN1111112C (en) * | 1998-11-16 | 2003-06-11 | 吴乐瑞 | Production method of ball valve |
| CN2490374Y (en) * | 2001-06-22 | 2002-05-08 | 沈海星 | Closed hollow ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1707146A (en) | 2005-12-14 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Huacheng Valve Co., Ltd. Assignor: Zhejiang University of Technology Contract fulfillment period: 2008.8.5 to 2024.6.9 contract change Contract record no.: 2008330000156 Denomination of invention: Production method of valve core of ball valve and its special-purpose mould Granted publication date: 20071219 License type: Exclusive license Record date: 2008.8.11 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.5 TO 2024.6.9 Name of requester: NINGBO HUA CHENG VALVE CO. Effective date: 20080811 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20140610 |
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| EXPY | Termination of patent right or utility model |