CN108705023A - Integrated nozzle belt forging profiling forging technology - Google Patents
Integrated nozzle belt forging profiling forging technology Download PDFInfo
- Publication number
- CN108705023A CN108705023A CN201810637283.9A CN201810637283A CN108705023A CN 108705023 A CN108705023 A CN 108705023A CN 201810637283 A CN201810637283 A CN 201810637283A CN 108705023 A CN108705023 A CN 108705023A
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- Prior art keywords
- ozzle
- forging
- anvil
- cylinder blank
- blank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/14—Making machine elements fittings
- B21K1/16—Making machine elements fittings parts of pipe or hose couplings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to forging fields, disclose integrated nozzle belt forging profiling forging technology.The technique, includes the following steps：The cylinder blank for being configured to blank forging that there is raised band；In cylinder blank raised band corresponding position, inner supporting structure is set, ozzle base is shaped in raised band using ozzle forming anvil, ozzle, which shapes anvil, has at least two shaped projections, ozzle forming pockets are formed between two adjacent shaped projections, the raised band that shaped projection is aligned to cylinder blank squeezes, and shapes ozzle base；Based on ozzle base, ozzle is shaped.Forming ozzle base can be realized in any position of raised band using the technique, the ozzle forming of specific position and quantity is no longer limited to, to expand the scope of application of forging technology.
Description
Technical field
The present invention relates to forging field, especially a kind of integrated nozzle belt forging profiling forging technology.
Background technology
With nuclear power equipment manufacturing technology and the continuous improvement required device security, the presentation of nuclear power generating equipment structure design
The trend of enlargement, integration reduces the weld seam quantity of equipment as far as possible, reduces the equipment In-service testing period, improves nuclear power
The operational efficiency of equipment.Previous reactor pressure vessel nozzle belt is to will take over ozzle to be integrated with nozzle belt barrel soldering
, weld seam quantity is more, and security performance is relatively low, and the In-service testing period is longer.
The patent application that publication No. is CN105033154A disclose a kind of band take over it is whole with the integrated nozzle belt of flange
Body forging method devises blank dimension on the basis of determining the characteristic size of integrated nozzle belt；Make triangle simultaneously
Anvil, door shape tup, saddle, flange punching pin and flanging lower die.The forging stage, by the hollow blank with intermediate annulus, with three
Beckiron is pressed on take over annulus position, presses shelves in advance, completes the forming of take over boss, then with door shape tup and saddle forging at
Shape blank forged piece；Blank forged piece roughing is finally obtained into flange blank, flange takes over forming front end ozzle, and to obtain integration whole
Body nozzle belt finished product.The method achieve taking over to forge with the one of flange, labor intensity is reduced, production efficiency is improved,
Reduce the weld seam quantity of whole pressure vessel.
But this method also has certain limitation, firstly, since which employs upper and lower three beckirons to coordinate forming ozzle
Base, therefore it is only capable of the forging for the ozzle that realization is circumferentially arranged, even in addition, the forging of circumferential ozzle, forges
Gap between ozzle is also necessarily symmetrical, that is to say, that and it can not freely determine the forging position of ozzle, for
It is certain to there is the nozzle belt forging specially required to be difficult to realize forging to ozzle position.
Invention content
Technical problem to be solved by the invention is to provide a kind of integrated nozzle belt forging profiling forging technologies, more certainly
By accurately realizing the forming of ozzle, the scope of application of integrated nozzle belt forging is improved.
Integration nozzle belt forging profiling forging technology disclosed by the invention, includes the following steps：
The cylinder blank for being configured to blank forging that there is raised band；
Inner supporting structure is set in cylinder blank raised band corresponding position, is shaped in raised band using ozzle forming anvil
Ozzle base, ozzle, which shapes anvil, has at least two shaped projections, and ozzle forming pockets are formed between two adjacent shaped projections, will be at
The raised band that shape convex block is directed at cylinder blank squeezes, and shapes ozzle base；
Based on ozzle base, ozzle is shaped.
Preferably, the raised band is the annulus around cylinder blank circumferentially, is formed with the cylinder blank step of annulus
It is rapid as follows：
Solid blank is positioned in drain cap, jumping-up is carried out, forms cylinder blank using punching pin forming interstitial hole, plug is worn
Cylinder blank interstitial hole is crossed, blank is positioned on V-shape anvil, pulling out out different-diameter section using flat anvil segmentation is configured to ring
The cylinder blank of band.
Preferably, the cylinder billet size for pulling out forming carries out primary Calculation according to forging's block dimension, then passes through numerical simulation
It is determined after being verified and being optimized.
Preferably, the raised band is the annulus around cylinder blank circumferentially, when shaping ozzle base, by cylinder blank
It is positioned on forming lower die, there is placing groove compatible with raised band, under the raised band alignment of cylinder blank on forming lower die
The placing groove of mould is placed, and ozzle forming anvil is set to above cylinder blank, and ozzle shapes anvil and pushes forming ozzle base.
Preferably, the ozzle forming anvil is additionally provided with two side shields, the spacing of two side shields and the width phase of raised band
Adaptation；
When shaping ozzle base, two side shields are respectively arranged at raised band both sides, and baffle coordinates forming tube with ozzle forming anvil
Mouth base.
Preferably, it is arranged on the ozzle forming anvil and pressure direction is provided with baffle guide rail, the baffle is installed on gear
On panel guide, moved along baffle guide rail；
When shaping ozzle base, the baffle of both sides slides onto to the both sides of raised band along track first, recycle ozzle at
Shape anvil extrusion molding ozzle base.
Preferably, before shaping ozzle base, reaming is carried out to cylinder blank first with reaming tooling and reaches forging
Process.
Preferably, the reaming tooling include saddle support, anvil in saddle and reaming, upper surface and the cylinder blank of the saddle
Inner surface be adapted, the lower surface of anvil is adapted with the outer surface of cylinder blank in the reaming；
When reaming, saddle is passed through into cylinder blank and both ends are set up on saddle support, anvil is set to cylinder blank in reaming
Top squeezes cylinder blank with anvil in reaming by saddle, and rotary barrel blank realizes reaming.
Preferably, the inner supporting structure includes core support and all directions saddle, the outer diameter and cylinder base of core support
The internal diameter of material raised band position is adapted, and there is centre bore compatible with all directions saddle, all directions saddle to be interspersed in for core support
In the centre bore of core support.
Preferably, the step of ozzle is shaped based on ozzle base is as follows：
The outer diameter of ozzle base is machined out, it is made to be adapted with ozzle shaping dies, is added in ozzle base central interior
Work goes out location hole, and ozzle base is positioned on ozzle shaping dies, and ozzle punch is arranged in location hole, and frame-type tooling passes through
Cylinder blank is arranged, and frame-type tooling pushes ozzle punch, shapes take over ozzle.
The beneficial effects of the invention are as follows：
1, anvil is shaped using the ozzle with two pieces of convex blocks, can realizes forming ozzle base in any position of raised band,
It is no longer limited to the ozzle forming of specific position and quantity, to expand the scope of application of forging technology.
2, take over ozzle is forged with nozzle belt cylinder using integrated profiling, is eliminated weld seam between the two, is improved
The safety of forging reduces the In-service testing period of equipment.
3, integrated nozzle belt is forged using profiling, improves the utilization rate of material, reduce material cost.
4, when circumferentially non-uniformly distributed ozzle shapes, ozzle forming anvil forming ozzle base is first passed through, ozzle is reshaped, avoids
Interference problem when 2 adjacent nozzles formings, can individually forge each ozzle.
Description of the drawings
Fig. 1 be jumping-up, impact schematic diagram；
Fig. 2 is the schematic diagram that segmentation pulls out out different-diameter section；
Fig. 3 is the side view of Fig. 2；
Fig. 4 is the schematic diagram for carrying out reaming to cylinder blank using reaming tooling；
Fig. 5 is the schematic diagram for shaping ozzle base；
Fig. 6 is the side view of Fig. 5；
Fig. 7 is the schematic diagram after being machined to ozzle base；
Fig. 8 is the schematic diagram that the punching of shape ozzle is extruded by ozzle base.
Reference numeral：Cylinder blank 1, drain cap 21, flat anvil 31, V-shape anvil 32, plug 33, anvil 41 in reaming, saddle 42, horse
Frame 43, ozzle shape anvil 51, baffle 52, all directions saddle 53, core support 54, forming lower die 55, baffle guide rail 56, frame-type work
Fill 61, ozzle punch 62, ozzle shaping dies 63.
Specific implementation mode
The present invention is further described below.
Integration nozzle belt forging profiling forging technology disclosed by the invention, includes the following steps：
The cylinder blank 1 for being configured to blank forging to have raised band, this raised band are to shape the basis of ozzle, herein
Position forming ozzle can ensure that ozzle and ozzle and the connecting portion of cylinder blank 1 have enough wall thickness, the position of raised band
It sets and moves towards depending on the arrangement of ozzle, it can also be multiple that raised band, which can be one, to simplify technique, will preferably own
In ozzle Position Design and same raised band, then only shaping the forging that ozzle can be realized in a raised band；
Shape ozzle base in raised band using ozzle forming anvil 51, ozzle shapes shaped projection there are two the tools of anvil 51, and two
Ozzle forming pockets are formed between shaped projection, and two shaped projections squeeze the raised band of preformed body, shape ozzle base, convex block
Acting surface be preferably arc, make the ozzle base of forming closer to the shape and size of ozzle relative to pointed shape；This elder generation at
The mode that type ozzle base reshapes ozzle can not only reduce the difficulty that ozzle shapes, and improve ozzle quality, and avoid straight
When connecing the multiple adjacent nozzles of forging, the problem of being interfered between ozzle, the width of convex block and the width of ozzle forming pockets point
Not depending on the diameter of the spacing of ozzle and ozzle, if forging the ozzle of different-diameter on same forging, it may distinguish
Anvil 51 is shaped using various sizes of ozzle, the quantity of convex block is usually two, and two convex blocks can shape an ozzle base, behaviour
Make that difficulty is relatively low, can also design three even more convex blocks certainly, is an ozzle forming between each adjacent two convex block
Groove can shape an ozzle base, that is, use three convex blocks that can disposably shape two ozzle bases, can one using four convex blocks
Secondary property shapes three ozzle bases, and certainly, the difficulty of forming also can correspondingly increase.
Based on ozzle base, ozzle is shaped, after having ozzle base, forming ozzle just becomes very easy, specific to shape
Mode may be used the modes such as forging or machining and shape.
Raised band can be along the axial direction of cylinder blank 1 can also be along cylinder circumferential direction cloth according to the distribution situation of ozzle
It sets, can also be arranged certainly along other directions, as long as raised band can be shaped, so that it may to forge ozzle base in the raised band.
When the raised band is around the annulus circumferentially of cylinder blank 1, it is formed with 1 step of cylinder blank of annulus such as
Under：
Solid blank is positioned in drain cap 21, jumping-up is carried out, cylinder blank 1, core are formed using punching pin forming interstitial hole
Stick 33 passes through 1 interstitial hole of cylinder blank, and blank is positioned on V-shape anvil 32, and different-diameter section is pulled out out using the segmentation of flat anvil 31
It is configured to have girdled cylinder blank 1.In the cylinder blank 1 for pulling out out different-diameter section, the amount of each section of material is with regard to basic
It determines, directly affects the forging's block dimension of post forming, therefore, in order to ensure to process qualified forging, pull out the cylinder of forming
1 size of blank carries out primary Calculation according to forging's block dimension, then is determined after being verified and optimized by numerical simulation, to ensure to forge
Part size qualification.In addition, mold can also be used shapes the different blank of each portion's step by way of jumping-up extruding.Solid
Before 21 jumping-up of blank drain cap, can first by raw material steel ingot by carrying out forging compacting in a manner of upsetting pull, to improve blank internal flaw,
Blank quality is improved, oxygen-acetylene cutting is then carried out.
Wherein, the effect of inner supporting structure is to prevent cylinder blank 1 from deforming when shaping ozzle base, inner wall support knot
Structure can club shaped structure compatible with 1 interstitial hole of cylinder blank, and the present invention is more preferably used such as lower structure, the internal support
Structure includes core support 54 and all directions saddle 53, the internal diameter phase of the outer diameter and 1 raised band position of cylinder blank of core support 54
There is centre bore compatible with all directions saddle 53, all directions saddle 53 to be interspersed in core support 54 for adaptation, core support 54
In heart hole.Due to forging pressure, when by 53 rotating cylinder blank 1 of all directions saddle, between core support 54 and cylinder blank 1
Substantially it does not skid, and all directions saddle 53 will not skid with the core support 54 being adapted to, and therefore, can pass through from all directions
Saddle 53 is easily controlled cylinder blank 1 and is rotated.
When shaping ozzle base, in addition to inner supporting structure is set, the support construction of bottom is preferably set again to improve forging
Stability is made, lower support structure is usually adapted with the bottom surface of cylinder blank 1, such as the raised band is around cylinder blank
Cylinder blank 1 is positioned on forming lower die 55, has on forming lower die 55 when shaping ozzle base by 1 annulus circumferentially
The placing groove of placing groove compatible with raised band, the raised band alignment lower die of cylinder blank 1 is placed, and ozzle shapes anvil 51 and is arranged
Above cylinder blank 1, ozzle shapes anvil 51 and pushes forming ozzle base.Ozzle forming anvil 51 is corresponding with about 55 forming lower die,
Interaction, to improve the molding stability of ozzle base.
It is open that the ozzle forming pockets both sides of above-mentioned forming anvil are practical, and when being molded ozzle base, material can be to both sides
Flowing, forms the corner angle of protrusion, and the both sides of ozzle base is made to become the concave architecture of intermediate narrow two hem width, and such structure can not only increase
Add the difficulty for shaping ozzle by ozzle base, and is likely to result in the waste of material.For this purpose, the present invention shapes anvil in the ozzle
51 are additionally provided with two side shields 52, and the spacing of two side shields 52 is adapted with the width of raised band；When shaping ozzle base, two side blocks
Plate 52 is respectively arranged at raised band both sides, baffle 52 and the ozzle forming cooperation forming ozzle base of anvil 51.Ozzle shapes the convex of anvil 51
Block and two side shields 52 can form the cavity of all round closure, form die forging effect, can more precisely control ozzle base
Shape, forming tube mouth provides good basis for after, and can preferably control corresponding size, avoids unnecessary material
Material waste.
Two side shields 52 can be fixed, it might even be possible to it is to be structure as a whole with the convex block of ozzle forming anvil 51,
Can also be movable, two kinds of baffles 52 are each advantageous, and the design of fixed baffle 52 and operation are more simple, but for
The distribution preset requirement of forging material is relatively high, and movable then on the contrary.Fixed baffle 52 design it is relatively simple,
Such as directly baffle 52 and the ozzle forming design of anvil 51 are structure as a whole, and it is directed to movable baffle 52, it can be described
It is arranged on ozzle forming anvil 51 and pressure direction is provided with baffle guide rail 56, the baffle 52 is installed on baffle guide rail 56, edge
Baffle guide rail 56 moves.When shaping ozzle base, the baffle of both sides 52 is slid onto to the both sides of raised band along track first, makes it
Ozzle both sides are limited, then push ozzle forming anvil 51, are slided by track between anvil 51 and baffle 52 since ozzle shapes
Dynamic connection, therefore, baffle 52 do not interfere with the movement of ozzle forming anvil 51.
Interstitial hole directly using punching pin forming is usually small compared with the actual interstitial hole of forging, it is thus typically necessary to right
It carries out reaming, and publication No. is to be, then carry out reaming after being shaped ozzle base in the patent document of CN105033154A,
And be easy that the position of ozzle base and angle is made to change when reaming, cause final forging ozzle position that deviation occurs.In this regard,
The present invention carries out the technique ruler that reaming reaches forging before shaping ozzle base, first with reaming tooling to cylinder blank 1
It is very little, ozzle angle and the drawbacks of change in location when avoiding reaming after being shaped ozzle.Above-mentioned document may be used when reaming
Reaming tooling, but the reaming effect of its reaming tooling is relatively poor, therefore the present invention provides a kind of preferred reaming tooling,
Including anvil 41 in saddle support 43, saddle 42 and reaming, the upper surface of the saddle 42 is adapted with the inner surface of cylinder blank 1, institute
The lower surface of anvil 41 in reaming is stated to be adapted with the outer surface of cylinder blank 1；When reaming, saddle 42 is passed through into cylinder blank 1 simultaneously
And both ends are set up on saddle support 43, anvil 41 is set to 1 top of cylinder blank in reaming, by anvil 41 on saddle 42 and reaming to cylinder
Body blank 1 is squeezed, and rotary barrel blank 1 realizes reaming.In contrast, reaming effect is more preferable, is more advantageous to for the tooling
Control the wall thickness of cylinder blank 1.
Existing machined after forming, the modes such as extrusion forging forming can be referred in such a way that ozzle base is molded ozzle,
In, the ozzle of impact extrusion forming, deformation extent is big, and forging quality is good.Therefore present invention preferably employs impact extrusion to shape ozzle, specifically
Mode is as follows：
The outer diameter of ozzle base is machined out, it is made to be adapted with ozzle shaping dies 63, in ozzle base central interior
Location hole is processed, ozzle base is positioned on ozzle shaping dies 63, ozzle punch 62, frame-type work are set in location hole
Filling 61 passes through cylinder blank 1 to be arranged, and frame-type tooling 61 pushes ozzle punch 62, shapes take over ozzle.After one ozzle forming
The forming of next ozzle can be carried out, until the forming of all ozzles is completed.
As shown in Fig. 1~Fig. 8, for a preferred embodiment of the invention, it is as follows：
1. after Heating Steel Ingots heat preservation, to steel ingot pressing tongs handle, then carrying out jumping-up, pulling compacting base, then cutting stock.
2. founding material after solid blank heating in drain cap 21, carrying out large deformation jumping-up to certain altitude, I is shaped, then
It is punched out using punching pin, such as Fig. 1.
3. plug 33 is positioned over across blank interstitial hole on V-shape anvil 32, pulled out using flat anvil 31.First pulling is certain
The straight tube blank of size, then sub-material pull out I~IV to cylinder blank shown in Fig. 31.
4. carrying out reaming to cylinder blank 1 using reaming tooling, saddle 42 is positioned over across cylinder blank 1 on saddle support 43,
Carry out pressure reaming using anvil in reaming 41, in reaming anvil 41 pressed it is primary after, rotation saddle 42 drives blank to rotate certain angle
Degree, then anvil 41 depresses a certain amount of carry out reaming in reaming, so that 1 diameter of cylinder blank is constantly grown up by multiple rotary pressure,
Until reaching process.
5. all directions saddle 53 combines core support 54 and is positioned on forming lower die 55 across cylinder blank 1, ozzle shapes anvil
51 pressures are a certain amount of, and then all directions saddle 53 combines 54 rotation drive cylinder blank 1 of core support and rotates, and ozzle shapes anvil 51 and presses
Under after adjacent another take over ozzle of a certain amount of forming, until all ozzle bases shape.
6. cylinder blank 1 is machined out each ozzle position after being cooled to room temperature, diameter is machined to φ 1, in blank
Wall processes the endoporus of φ 2 as location hole, depth h0.
7. the cylinder blank 1 after processing is positioned over after heating on ozzle shaping dies 63, ozzle is set in location hole and is rushed
First 62, frame-type tooling 61 is arranged across cylinder blank 1, and frame-type tooling 61 pushes ozzle punch 62, shapes take over ozzle.Often
It is secondary to shape a take over ozzle with impact extrusion, rotary barrel blank 1 is can continue to next take over ozzle, until all ozzles
Forming is completed.
Claims (10)
1. integrated nozzle belt forging profiling forging technology, which is characterized in that include the following steps：
The cylinder blank (1) for being configured to blank forging that there is raised band；
Inner supporting structure is set in cylinder blank (1) raised band corresponding position, using ozzle forming anvil (51) in raised band
Ozzle base is shaped, ozzle, which shapes anvil (51), has at least two shaped projections, and ozzle forming is formed between two adjacent shaped projections
Groove squeezes the raised band of shaped projection alignment cylinder blank (1), shapes ozzle base；
Based on ozzle base, ozzle is shaped.
2. integration nozzle belt forging profiling forging technology as described in claim 1, which is characterized in that the raised band be around
The annulus of cylinder blank (1) circumferentially, being formed with the cylinder blank (1) of annulus, steps are as follows：
Solid blank is positioned in drain cap (21), jumping-up is carried out, cylinder blank (1), core are formed using punching pin forming interstitial hole
Stick (33) passes through cylinder blank (1) interstitial hole, and blank is positioned on V-shape anvil (32), is pulled out out not using flat anvil (31) segmentation
It is configured to have girdled cylinder blank (1) with diameter segment.
3. integration nozzle belt forging profiling forging technology as claimed in claim 2, which is characterized in that pull out the cylinder of forming
Blank (1) size carries out primary Calculation according to forging's block dimension, then is determined after being verified and optimized by numerical simulation.
4. integration nozzle belt forging profiling forging technology as described in claim 1, which is characterized in that the raised band be around
Cylinder blank (1) is positioned on forming lower die (55) by the annulus of cylinder blank (1) circumferentially when shaping ozzle base, at
There is placing groove compatible with raised band, the placing groove of the raised band alignment lower die of cylinder blank (1) to put in shape lower die (55)
It sets, ozzle forming anvil (51) is set to above cylinder blank (1), and ozzle shapes anvil (51) and pushes forming ozzle base.
5. integration nozzle belt forging profiling forging technology as described in claim 1, which is characterized in that the ozzle shapes anvil
(51) two side shields (52) are additionally provided with, the spacing of two side shields (52) is adapted with the width of raised band；
When shaping ozzle base, two side shields (52) are respectively arranged at raised band both sides, and baffle (52) is matched with ozzle forming anvil (51)
Synthesize shape ozzle base.
6. integration nozzle belt forging profiling forging technology as claimed in claim 5, which is characterized in that the ozzle shapes anvil
(51) it is arranged on and pressure direction is provided with baffle guide rail (56), the baffle (52) is installed on baffle guide rail (56), along gear
Panel guide (56) is mobile；
When shaping ozzle base, the baffle of both sides (52) slides onto to the both sides of raised band along track first, recycle ozzle at
Shape anvil (51) extrusion molding ozzle base.
7. integration nozzle belt forging profiling forging technology as described in claim 1, which is characterized in that forming ozzle base it
Before, the process that reaming reaches forging is carried out to cylinder blank (1) first with reaming tooling.
8. integration nozzle belt forging profiling forging technology as claimed in claim 7, which is characterized in that the reaming tooling packet
Include saddle support (43), anvil (41) in saddle (42) and reaming, the inner surface phase of the upper surface and cylinder blank (1) of the saddle (42)
It is adapted to, the lower surface of anvil (41) is adapted with the outer surface of cylinder blank (1) in the reaming；
When reaming, saddle (42) is passed through into cylinder blank (1) and both ends are set up on saddle support (43), anvil (41) is arranged in reaming
Above cylinder blank (1), cylinder blank (1) is squeezed with anvil in reaming (41) by saddle (42), and rotary barrel
Blank (1) realizes reaming.
9. integration nozzle belt forging profiling forging technology as described in claim 1, which is characterized in that the internal support knot
Structure includes core support (54) and all directions saddle (53), and core supports outer diameter and cylinder blank (1) the raised band position of (54)
Internal diameter is adapted, and core supports (54) with compatible centre bore, all directions saddle (53) are interspersed in core with all directions saddle (53)
Portion supports in the centre bore of (54).
10. integration nozzle belt forging profiling forging technology as described in claim 1, which is characterized in that using ozzle base as base
It is as follows that plinth shapes the step of ozzle：
The outer diameter of ozzle base is machined out, it is made to be adapted with ozzle shaping dies (63), is added in ozzle base central interior
Work goes out location hole, and ozzle base is positioned on ozzle shaping dies (63), and ozzle punch (62), frame-type are arranged in location hole
Tooling (61) is arranged across cylinder blank (1), and frame-type tooling (61) pushes ozzle punch (62), shapes take over ozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637283.9A CN108705023B (en) | 2018-06-20 | 2018-06-20 | Profiling forging process for integrated pipe joint section forge piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637283.9A CN108705023B (en) | 2018-06-20 | 2018-06-20 | Profiling forging process for integrated pipe joint section forge piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108705023A true CN108705023A (en) | 2018-10-26 |
| CN108705023B CN108705023B (en) | 2020-09-01 |
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|---|---|---|---|
| CN201810637283.9A Active CN108705023B (en) | 2018-06-20 | 2018-06-20 | Profiling forging process for integrated pipe joint section forge piece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500333A (en) * | 2019-01-16 | 2019-03-22 | 山东大学 | A kind of large ring reaming forging forming method with inward flange |
| CN113878075A (en) * | 2021-10-18 | 2022-01-04 | 二重（德阳）重型装备有限公司 | Profiling forging process for large variable-section cylinder integrated with multiple connecting pipes |
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| CN102921764A (en) * | 2012-07-10 | 2013-02-13 | 清华大学 | Molding method and molding apparatus for pipe structure having nozzle boss |
| CN103143659A (en) * | 2013-03-21 | 2013-06-12 | 通裕重工股份有限公司 | Hollow forging method of nuclear power main pipeline |
| CN105033154A (en) * | 2015-07-22 | 2015-11-11 | 中国第一重型机械股份公司 | Integral forging method for integrated connecting pipe section with connecting pipe and flange |
| CN104972052A (en) * | 2015-07-31 | 2015-10-14 | 四川工程职业技术学院 | Forging method for pipe nozzle bosses of nuclear power main pipeline blank |
| CN105033132A (en) * | 2015-09-19 | 2015-11-11 | 中国第一重型机械股份公司 | Hollow forging piece profiling forging method of overlong-asymmetric-pipe-mouth-contained reactor coolant piping |
| CN106051721A (en) * | 2016-06-03 | 2016-10-26 | 上海新闵（东台）重型锻造有限公司 | Pressure vessel integrated end socket for nuclear power, end socket plate blank of pressure vessel integrated end socket and forging method of pressure vessel integrated end socket |
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| CN109500333A (en) * | 2019-01-16 | 2019-03-22 | 山东大学 | A kind of large ring reaming forging forming method with inward flange |
| CN109500333B (en) * | 2019-01-16 | 2020-07-17 | 山东大学 | Large ring piece reaming forging forming method with inner flange |
| CN113878075A (en) * | 2021-10-18 | 2022-01-04 | 二重（德阳）重型装备有限公司 | Profiling forging process for large variable-section cylinder integrated with multiple connecting pipes |
| CN113878075B (en) * | 2021-10-18 | 2023-08-25 | 二重（德阳）重型装备有限公司 | Profiling forging process for large variable-section cylinder body integrated with multiple connecting pipes |
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