CN109513865A - Forging forming method with side neck water chamber head - Google Patents
Forging forming method with side neck water chamber head Download PDFInfo
- Publication number
- CN109513865A CN109513865A CN201811345735.2A CN201811345735A CN109513865A CN 109513865 A CN109513865 A CN 109513865A CN 201811345735 A CN201811345735 A CN 201811345735A CN 109513865 A CN109513865 A CN 109513865A
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- CN
- China
- Prior art keywords
- water chamber
- forging
- chamber head
- forming method
- side neck
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
Abstract
The present invention provides a kind of forging forming method with side neck water chamber head, comprising the following steps: step 1, compacting；First a loss of weight is cut in hot sending, is compacted after then keeping the temperature into furnace, is then melted down heating two upsettings two of progress and is pulled out, axial forging ratio >=3；Step 2, sub-material；Blank after the completion of step 1 is subjected to sectional profiling, is divided into side pipe mouth and " bowl " shape main part, side pipe mouth is pulled out, then number five faces of print and two demifacets carry out the dislocation side of pulling out, last remaining octagonal part is round as a ball；Step 3, rotation are ground " bowl " shape main part, " bowl " shape main part are completed using the flat anvil of profiling and dedicated lower die, while not destroying the shape of side pipe mouth；Step 4, heat treatment after forging carry out double normalizing and a tempering, obtain forging.By means of the present invention, directly reduce weld seam when adapter tube is separately fabricated finally to be welded together, the safety coefficient of whole part is improved while reducing manufacturing cost.
Description
Technical field
The present invention relates to casting field, especially a kind of forging forming method with side neck water chamber head.
Background technique
With the development of nuclear power technology, used in nuclear power station forging is constantly towards integration, miniaturization development.It is steamed in nuclear power
In vapour generator, water chamber head is very important part in whole part, carries the effect of solution circulation exchange valve.By
The condition of the working environment locating for water chamber head, design side considers from safety, manufacture etc., in latest model steam generator portion
In part design, it will take over and be integrated together with water chamber head, form a kind of asymmetric side neck water chamber head forging of band to reduce
The safety coefficient of weld seam increase whole part.
Band side neck water chamber head has following distinguishing feature: belonging to shaped cap seal head forging, branch ozzle is more, and shape is multiple
Miscellaneous, nearly parts profile forging difficulty is big, and water chamber head band side neck is asymmetric and " bowl " shape Partial Height is not high, limits its punching
A possibility that in terms of pressing formation.In addition, serious waste of material is forged and pressed and will cause by the way of being completely covered, do not examine generally
Consider which.In conclusion the difficulty with higher of the forging with side neck water chamber head.
Summary of the invention
The technical problem to be solved by the present invention is to, provide it is a kind of effectively solve with asymmetric side neck water chamber head from without to
The method of some manufactures.
In order to solve the above technical problems, the present invention provides a kind of forging forming method with side neck water chamber head, packet
Include following steps: step 1, compacting；First a loss of weight is cut in hot sending, is compacted after then keeping the temperature into furnace, is then melted down heating and is carried out two upsettings
Two pull out, axial forging ratio >=3；Step 2, sub-material；Blank after the completion of step 1 is subjected to sectional profiling, is divided into side pipe mouth
" bowl " shape main part, side pipe mouth is pulled out, number five faces of print and two demifacets, then carries out the dislocation side of pulling out, last remaining
Octagonal part is round as a ball；Step 3, rotation are ground " bowl " shape main part, " bowl " shape main body are completed using the flat anvil of profiling and dedicated lower die
Part, while the shape of side pipe mouth is not destroyed；Step 4, heat treatment after forging carry out double normalizing and a tempering, obtain
To forging.
Preferably, the temperature range kept the temperature into furnace in the step 1 is 1150 DEG C~1250 DEG C.
Preferably, in the step 2, a number print depth is 500mm.
It preferably, is every time 300mm, drafts 150mm into anvil amount in the step 2.
Preferably, in the step 4, the temperature range of normalized treatment is 900 DEG C~990 DEG C.
Preferably, in the step 4, the temperature range of tempering is 600 DEG C~700 DEG C.
Preferably, the step 2 using ten thousand tons of press and assembles special tooling accessory progress sectional forming.
Detailed description of the invention
Fig. 1 is to use the forging drawing of the invention with side neck water chamber head.
Fig. 2 is that the forging forming method number of the invention with side neck water chamber head prints sub-material schematic diagram.
Fig. 3 is the forging forming method sectional forming schematic diagram of the invention with side neck water chamber head.
Fig. 4 is the flat anvil schematic diagram of profiling in the forging forming method of the invention with side neck water chamber head.
Fig. 5 is the profiling lower die schematic diagram in the forging forming method of the invention with side neck water chamber head.
Specific embodiment
The present invention provides a kind of manufacturing process of sectional profiling to complete the forging with asymmetric side neck water chamber head
Forming.
The first step, compacting；Due to asymmetric side neck and water chamber head bottom be integrated profiling and side neck be it is solid (such as
Shown in Fig. 1), therefore wall thickness thickness herein is caused, and use large steel ingot that large deformation is needed to smash metallurgical imperfection.First hot sending is cut handle and is subtracted
Weight is JTS to mouth 2300mm after then keeping the temperature into 1150~1250 DEG C of furnace, then melts down heating two upsettings two of progress and pulls out, axial to forge
Make ratio >=3.
Second step, sub-material；There are problems that following two when sub-material:
1. side neck part and main part center difference；
2. " bowl " shape main part needs to be pressed into circle, side neck part needs to be pressed into rectangular；
Blank is first pulled into #3000mm length about 3485mm, number five faces of print and two demifacets, number print depth about 500mm
(as shown in Figure 2) then presses every time into anvil amount 300mm, drafts about 150mm, carries out the dislocation side of pulling out (about 1620mm*1770mm*
4060mm) last remaining octagonal part is round as a ball to~φ 3000mm*1770mm (as shown in Figure 3).
The completion of " bowl " shape main part is ground in third step, rotation；Devise the flat anvil of profiling (as shown in Figure 4) and dedicated lower die (such as
Shown in Fig. 5), to complete " bowl " shape main part, while the shape of asymmetric side neck is not destroyed.
4th step, heat treatment after forging carry out 900~990 DEG C of normalizing twice and 600~700 DEG C of temperings,
Obtain all good green state of shape and interior tissue.
The present invention solves the problems, such as the forging with asymmetric side neck water chamber head.
The compacting scheme for adding a JTS, mouthpiece portion and " bowl " shape main part sectional profiling, main body are pulled out using two upsettings two
The manufacturing process of completion and the forging post processing mode of " two positive one time " are ground in part rotation, can provide size and interior tissue is all good
Forging blank solves the forging problem with asymmetric ozzle water chamber head.
The present invention considers stock utilization according to the features of shape with side neck water chamber head, in conjunction with plant capacity,
The manufacturing process with side neck water chamber head sectional profiling is developed, using ten thousand tons of press and assembles special tooling accessory, is carried out
Blank is first pressed into two sections by sectional forming, and one section is one section of side of being of circle, using the flat anvil of profiling and pattern, the forging ground by rotation
Its sectional profiling is forged and is completed by method.By means of the present invention, directly reduce that adapter tube is separately fabricated to be finally welded on one
Weld seam when rising improves the safety coefficient of whole part while reducing manufacturing cost.It efficiently solves with asymmetric
Side neck water chamber head manufactures problem from scratch.
Claims (7)
1. a kind of forging forming method with side neck water chamber head, which comprises the following steps:
Step 1, compacting；First a loss of weight is cut in hot sending, is compacted after then keeping the temperature into furnace, is then melted down heating two upsettings two of progress and is pulled out, axis
To forging ratio >=3；
Step 2, sub-material；Blank after the completion of step 1 is subjected to sectional profiling, is divided into side pipe mouth and " bowl " shape main part,
Side pipe mouth is pulled out, number five faces of print and two demifacets, then carry out the dislocation side of pulling out, last remaining octagonal part is round as a ball；
Step 3, rotation are ground " bowl " shape main part, " bowl " shape main part are completed using the flat anvil of profiling and dedicated lower die, simultaneously
The shape of side pipe mouth is not destroyed；
Step 4, heat treatment after forging carry out double normalizing and a tempering, obtain the forging with side neck water chamber head.
2. the forging forming method as described in claim 1 with side neck water chamber head, which is characterized in that in the step 1
Into furnace keep the temperature temperature range be 1150 DEG C~1250 DEG C.
3. the forging forming method as described in claim 1 with side neck water chamber head, which is characterized in that the step 2
In, a number print depth is 500mm.
4. the forging forming method as described in claim 1 with side neck water chamber head, which is characterized in that the step 2
In, it is every time 300mm, drafts 150mm into anvil amount.
5. the forging forming method as described in claim 1 with side neck water chamber head, which is characterized in that the step 4
In, the temperature range of normalized treatment is 900 DEG C~990 DEG C.
6. the forging forming method as described in claim 1 with side neck water chamber head, which is characterized in that the step 4
In, the temperature range of tempering is 600 DEG C~700 DEG C.
7. the forging forming method as described in claim 1 with side neck water chamber head, which is characterized in that the step 2 is adopted
With ten thousand tons of press and assembles special tooling accessory and carry out sectional forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345735.2A CN109513865B (en) | 2018-11-13 | 2018-11-13 | Forging forming method for water chamber end socket with side nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345735.2A CN109513865B (en) | 2018-11-13 | 2018-11-13 | Forging forming method for water chamber end socket with side nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109513865A true CN109513865A (en) | 2019-03-26 |
| CN109513865B CN109513865B (en) | 2020-09-08 |
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ID=65776129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811345735.2A Active CN109513865B (en) | 2018-11-13 | 2018-11-13 | Forging forming method for water chamber end socket with side nozzle |
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| Country | Link |
|---|---|
| CN (1) | CN109513865B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787161A (en) * | 2021-08-20 | 2021-12-14 | 上海电气上重铸锻有限公司 | Free forging semi-profiling forging forming method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974731A (en) * | 2012-12-24 | 2013-03-20 | 中国第一重型机械股份公司 | Forging method for integral sealing head for nuclear power |
| CN104259362A (en) * | 2014-10-21 | 2015-01-07 | 中国第一重型机械股份公司 | Nuclear reactor integrating lower end socket integrity profiling and forging method |
| KR20150012640A (en) * | 2013-07-26 | 2015-02-04 | 훌루테크 주식회사 | Manufacturing method of piston for hydraulic pressure pumps |
-
2018
- 2018-11-13 CN CN201811345735.2A patent/CN109513865B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974731A (en) * | 2012-12-24 | 2013-03-20 | 中国第一重型机械股份公司 | Forging method for integral sealing head for nuclear power |
| KR20150012640A (en) * | 2013-07-26 | 2015-02-04 | 훌루테크 주식회사 | Manufacturing method of piston for hydraulic pressure pumps |
| CN104259362A (en) * | 2014-10-21 | 2015-01-07 | 中国第一重型机械股份公司 | Nuclear reactor integrating lower end socket integrity profiling and forging method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787161A (en) * | 2021-08-20 | 2021-12-14 | 上海电气上重铸锻有限公司 | Free forging semi-profiling forging forming method |
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| CN109513865B (en) | 2020-09-08 |
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