CN108838229A - A kind of main pipe hot leg integrated extrusion molding device - Google Patents
A kind of main pipe hot leg integrated extrusion molding device Download PDFInfo
- Publication number
- CN108838229A CN108838229A CN201810758697.7A CN201810758697A CN108838229A CN 108838229 A CN108838229 A CN 108838229A CN 201810758697 A CN201810758697 A CN 201810758697A CN 108838229 A CN108838229 A CN 108838229A
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- CN
- China
- Prior art keywords
- stub
- tube
- side mold
- rns
- ads
- 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.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 7
- 238000005242 forging Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
- B21C23/12—Extruding bent tubes or rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/04—Mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
It is an object of the invention to disclose a kind of main pipe hot leg integrated extrusion molding device, it includes ADS (releasing pressure automatically system) stub (tube) side mold and RNS (normal residual heat removal system) stub (tube) side mold, the ADS stub (tube) side mold and RNS stub (tube) side mold are respectively arranged with cavity, and the ADS stub (tube) side mold and RNS stub (tube) side mold are separately connected a fixed core model；Compared with prior art, by integrated extrusion molding, steel ingot can be saved significantly on, reduces manufacturing cost, improve overall economy quality index, stub (tube) amount of machining is obviously reduced, and has biggish deformation, it is ensured that has preferable grain size at stub (tube), it can Quick-forming, local heating, reducing influences the grain size at nonextruding position, achieves the object of the present invention.
Description
Technical field
The present invention relates to a kind of main pipe hot leg molding machines of nuclear power plant's reactor coolant loop, in particular to a kind of
The main pipe hot leg integrated extrusion molding device of nuclear power plant's reactor coolant loop.
Background technique
In nuclear power plant in reactor coolant loop, reactor coolant pipe (hereinafter referred to as main pipeline) is as reaction
The runner of reactor coolant, be pressure boundary particularly important in primary Ioops reactor coolant loop and prevent primary Ioops substance to
The safety curtain of external leakage.
Reactor coolant pipe (hereinafter referred to as main pipeline) is usually made of hot arc and cold section, wherein hot arc connection reaction
Core pressure vessel (RPV) and steam generator (SG).
The economy of nuclear power technology is great to the influence on development of each nuclear power technology, and the manufacturing cost of equipment is then most important
One of influence factor.The required single steel ingot of hot arc weighs 120 tons under conventional entity forging stub (tube) technique, so that main pipeline system
It causes originally to remain high.How to reduce single steel ingot dosage to be affected to main pipeline manufacturing cost, also directly influences equipment
Economy.
Summary of the invention
The purpose of the present invention is to provide a kind of main pipe hot leg integrated extrusion molding devices, not for the prior art
Foot can save significantly on steel ingot, reduce processing capacity, improve grain size.
Technical problem solved by the invention can be realized using following technical scheme：
A kind of main pipe hot leg integrated extrusion molding device, which is characterized in that it include ADS stub (tube) side mold and
RNS stub (tube) side mold, the ADS stub (tube) side mold and RNS stub (tube) side mold are respectively arranged with cavity, and the ADS connects
Tube socket side mold and RNS stub (tube) side mold are separately connected a fixed core model.
In one embodiment of the invention, the fixed core model passes through ADS stub (tube) side mold and RNS stub (tube) side form
Tool is provided with a movable core model, and the fixed core model is worked in coordination with movable core model.
Further, the fixed core model and movable core model all have the taper of certain angle.
In one embodiment of the invention, the fixed core model by bolt respectively with ADS stub (tube) side mold and RNS
Stub (tube) side mold is connected.
In one embodiment of the invention, the cavity of the ADS stub (tube) side mold is used to form the extruding of ADS stub (tube)
Metal, the cavity carry out rounding setting.
In one embodiment of the invention, the cavity of the RNS stub (tube) side mold is used to form the extruding of RNS stub (tube)
Metal, the cavity carry out rounding setting.
Main pipe hot leg integrated extrusion molding device of the invention is squeezed by integration compared with prior art
Type can save significantly on steel ingot, reduce manufacturing cost, improve overall economy quality index, and stub (tube) amount of machining is obviously reduced, has
Biggish deformation, it is ensured that at stub (tube) have preferable grain size, can Quick-forming, local heating, reduce to nonextruding portion
The grain size of position influences, and achieves the object of the present invention.
The features of the present invention sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clearly
Solution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of main pipe hot leg of the invention；
Fig. 2 is the structural schematic diagram before main pipe hot leg of the invention is bent；
Fig. 3 is the diagrammatic cross-section of main pipe hot leg forging stock before extruding of the invention；
Fig. 4 is the structural schematic diagram that main pipe hot leg of the invention squeezes.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment 1
As shown in Figures 1 to 4, main pipe hot leg integrated extrusion molding device of the invention, it includes ADS stub (tube) side
Mold 1 and RNS stub (tube) side mold 2, ADS stub (tube) side mold 1 are provided with cavity and are used to form ADS stub (tube) extruding metal
11, RNS stub (tube) side molds 2 are provided with cavity and are used to form RNS stub (tube) extruding metal 21.
The volume of the cavity of ADS stub (tube) side mold 1 is at least 1.5 times of ADS stub (tube) overall volume, ADS stub (tube)
The cavity of side mold 1 carries out rounding setting；The volume of the cavity of RNS stub (tube) side mold 2 is at least RNS stub (tube) overall volume
1.5 times, the cavity of RNS stub (tube) side mold 2 carries out rounding setting.
Fixed core model 3 is connected by bolt 31 with ADS stub (tube) side mold 1 and RNS stub (tube) side mold 2, fixed core
Mould 3 is provided with a movable core model 4, fixed core model 3 and slide core by ADS stub (tube) side mold 1 and RNS stub (tube) side mold 2
Mould 4 is worked in coordination.
Fixed core model 3 and movable core model 4 all have the taper of certain angle, in order to form.
Main pipe hot leg integrated extrusion molding device of the invention acts on the lower movable core model for pushing one end by press
4 pressures, the fixed core model 3 of the other end is fixed by bolt 31, realizes extrusion forming.
The course of work of main pipe hot leg integrated extrusion molding device of the invention is following (referring to fig. 4)：
Firstly, assembling fixed core model 3, ADS stub (tube) side mold 1 and RNS stub (tube) side mold 2；Debugging activity core model 4 with
2 fiting effect of ADS stub (tube) side mold 1 and RNS stub (tube) side mold；The main pipe hot leg forging stock 10 of semi-hollow is hung in, is added
Hot arc solid area；Promotion activity core model 4 moves forward under press effect, in movable core model 4 and ADS stub (tube) side mold
1, RNS stub (tube) side mold 2 forms ADS stub (tube) and squeezes metal 11 and RNS stub (tube) extruding metal 21 under acting on；It is connect to ADS
After tube socket extruding metal 11 and the RNS stub (tube) extruding forming of metal 21 volume are met the requirements, fixed core model 3, slide core are disassembled
Mould 4, ADS stub (tube) side mold 1 and RNS stub (tube) side mold 2 take out main pipe hot leg blank after extruding and carry out subsequent work
Skill.
Main pipe hot leg integrated extrusion molding device of the invention has following technological merit：
1) extrusion molding, fashion of extrusion are backward extrusion, can Quick-forming compared to entity open die forging.
2) forge piece blank reheating is that both ends are hollow, intermediate solid, and for hollow segment length according to depending on stub (tube) position, hollow forging stock can
Substantially reduce amount of machining.
3) entity open die forging stub (tube) hot arc is compared, steel ingot can be saved significantly on, reduces manufacturing cost, improves overall economy quality
Index.
4) integrated extrusion molding is formed compared to open die forging, and stub (tube) amount of machining is obviously reduced.
5) stub (tube) is extrusion molding, has biggish deformation, it is ensured that has preferable grain size at stub (tube).
6) local heating, reducing influences the grain size at nonextruding position.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of main pipe hot leg integrated extrusion molding device, which is characterized in that it includes ADS stub (tube) side mold and RNS
Stub (tube) side mold, the ADS stub (tube) side mold and RNS stub (tube) side mold are respectively arranged with cavity, the ADS stub (tube)
Side mold and RNS stub (tube) side mold are separately connected a fixed core model.
2. main pipe hot leg integrated extrusion molding device as described in claim 1, which is characterized in that the fixed core model is logical
It crosses ADS stub (tube) side mold and RNS stub (tube) side mold is provided with a movable core model, the fixed core model and movable core model are mutual
Cooperation.
3. main pipe hot leg integrated extrusion molding device as claimed in claim 2, which is characterized in that the fixed core model and
Movable core model all has the taper of certain angle.
4. main pipe hot leg integrated extrusion molding device as described in claim 1, which is characterized in that the fixed core model is logical
Bolt is crossed to be connected with ADS stub (tube) side mold and RNS stub (tube) side mold respectively.
5. main pipe hot leg integrated extrusion molding device as described in claim 1, which is characterized in that the ADS stub (tube)
The cavity of side mold is used to form ADS stub (tube) and squeezes metal, and the cavity carries out rounding setting.
6. main pipe hot leg integrated extrusion molding device as described in claim 1, which is characterized in that the RNS stub (tube)
The cavity of side mold is used to form RNS stub (tube) and squeezes metal, and the cavity carries out rounding setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810758697.7A CN108838229A (en) | 2018-07-11 | 2018-07-11 | A kind of main pipe hot leg integrated extrusion molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810758697.7A CN108838229A (en) | 2018-07-11 | 2018-07-11 | A kind of main pipe hot leg integrated extrusion molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108838229A true CN108838229A (en) | 2018-11-20 |
Family
ID=64196830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810758697.7A Pending CN108838229A (en) | 2018-07-11 | 2018-07-11 | A kind of main pipe hot leg integrated extrusion molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108838229A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB197119A (en) * | 1922-03-09 | 1923-05-10 | Joseph Howard Junior | Improvements in the manufacture of pipe fittings and the like |
| US2170853A (en) * | 1937-10-09 | 1939-08-29 | American Radiator & Standard | Method of making pipe fittings |
| CN101596559A (en) * | 2009-07-06 | 2009-12-09 | 上海昌强电站配件有限公司 | The forging backward extrusion technology of three-way pipe |
| CN101862949A (en) * | 2010-06-29 | 2010-10-20 | 赵伟星 | Backward extrusion forging method |
| KR20120127974A (en) * | 2011-05-16 | 2012-11-26 | 포항공과대학교 산학협력단 | Grain refining method for tubular metallic material |
| CN105312349A (en) * | 2014-06-26 | 2016-02-10 | 北京有色金属研究总院 | Method of increasing deformation quantity of cylinder bottom of metal backward-extrusion cylindrical part |
| CN106424180A (en) * | 2016-09-29 | 2017-02-22 | 北京科技大学 | Extruding device and method for double-mouth and thick-wall pipe blank extrusion manufacturing |
| CN106424509A (en) * | 2015-11-10 | 2017-02-22 | 阜新华通管道有限公司 | Three-way pipe fitting extrusion forming mold and forming method |
| CN107671219A (en) * | 2017-11-15 | 2018-02-09 | 烟台市台海集团有限公司 | A kind of extrusion forging method of the long pipe of major diameter |
| CN208866170U (en) * | 2018-07-11 | 2019-05-17 | 上海核工程研究设计院有限公司 | A kind of main pipe hot leg integrated extrusion molding device |
-
2018
- 2018-07-11 CN CN201810758697.7A patent/CN108838229A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB197119A (en) * | 1922-03-09 | 1923-05-10 | Joseph Howard Junior | Improvements in the manufacture of pipe fittings and the like |
| US2170853A (en) * | 1937-10-09 | 1939-08-29 | American Radiator & Standard | Method of making pipe fittings |
| CN101596559A (en) * | 2009-07-06 | 2009-12-09 | 上海昌强电站配件有限公司 | The forging backward extrusion technology of three-way pipe |
| CN101862949A (en) * | 2010-06-29 | 2010-10-20 | 赵伟星 | Backward extrusion forging method |
| KR20120127974A (en) * | 2011-05-16 | 2012-11-26 | 포항공과대학교 산학협력단 | Grain refining method for tubular metallic material |
| CN105312349A (en) * | 2014-06-26 | 2016-02-10 | 北京有色金属研究总院 | Method of increasing deformation quantity of cylinder bottom of metal backward-extrusion cylindrical part |
| CN106424509A (en) * | 2015-11-10 | 2017-02-22 | 阜新华通管道有限公司 | Three-way pipe fitting extrusion forming mold and forming method |
| CN106424180A (en) * | 2016-09-29 | 2017-02-22 | 北京科技大学 | Extruding device and method for double-mouth and thick-wall pipe blank extrusion manufacturing |
| CN107671219A (en) * | 2017-11-15 | 2018-02-09 | 烟台市台海集团有限公司 | A kind of extrusion forging method of the long pipe of major diameter |
| CN208866170U (en) * | 2018-07-11 | 2019-05-17 | 上海核工程研究设计院有限公司 | A kind of main pipe hot leg integrated extrusion molding device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
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| CB02 | Change of applicant information |