CN100493765C - Forging method of large scale conical barrel - Google Patents
Forging method of large scale conical barrel Download PDFInfo
- Publication number
- CN100493765C CN100493765C CNB2006101473313A CN200610147331A CN100493765C CN 100493765 C CN100493765 C CN 100493765C CN B2006101473313 A CNB2006101473313 A CN B2006101473313A CN 200610147331 A CN200610147331 A CN 200610147331A CN 100493765 C CN100493765 C CN 100493765C
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- blank
- billet material
- large scale
- rotating shaft
- shape
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Abstract
The utility model discloses a forging method of large conical cylinder, comprising the following steps: the first step is upsetting, process the billet material from the original columnar shape into a cake-like shape; a circular hole is pinched out at the center of the cake-shape billet material; after that, put a rotating shaft through the circular hole of the billet material; the rotating shaft drives the billet material to rotate, meanwhile, external pressing force is given on the outer side face of the billet material, making the billet material into a cylinder shape; the rotating shaft drives the billet material to rotate, meanwhile, external pressing force is given on different segment of the outer side face of the billet material, making the outer side of the billet material into a step shape; then the rotating shaft drives the billet material to rotate, and meanwhile, external pressing force is given on the highest step of the step shape billet material, making the step shape billet material into a rudiment shape of a big conical cylinder; finally, trim the rudiment shape of the large conical cylinder, and a large conical cylinder is obtained. The forging method of large conical cylinder provided by the invention has the advantages that the manufacturing steps are simple, and a large conical cylinder with good performance can be made conveniently and rapidly.
Description
Technical field
The present invention relates to a kind of forging method of large scale conical shell.
Background technology
Large scale conical shell is the strength member in nuclear power generating equipment and the chemical industry equipment, and it is one section two diameter difference and the identical conical shell of wall thickness.This part is very big owing to its size, and intensity and material are all had special requirement, therefore processes very inconvenience.Adopt integral body not carry out forging molding in the prior art with the method for tapering always.The forging that this method is produced exists allowance big, many weak points such as cost of goods manufactured height.
Summary of the invention
Technical problem to be solved by this invention provides the forging method of large scale conical shell, can conveniently make large scale conical shell.
For solving the problems of the technologies described above, the technical scheme of the forging method of large scale conical shell of the present invention is in turn include the following steps:
(1) jumping-up is processed into round pie with blank by column;
(2) go out a circular hole at the blank center of round pie;
(3) rotating shaft is passed the circular hole of blank, rotating shaft drives the blank rotation, from the outer lateral side of blank blank is exerted pressure simultaneously, and blank is processed into tubular;
(4) rotating shaft drives the blank rotation, simultaneously from the blank outside to blank segmentation exert pressure, the step base is processed in the blank outside of tubular;
(5) rotating shaft drives the rotation of step base, simultaneously the highest step of step base is exerted pressure, and the step base is processed into the blank of large scale conical shell;
(6) blank of large scale conical shell is repaired, obtain large scale conical shell.
The forging method of large scale conical shell provided by the present invention, its step is simple, can conveniently produce well behaved large scale conical shell.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and Examples:
Fig. 1 to Fig. 6 is the schematic diagram of each step of forging method of large scale conical shell of the present invention.
Reference numeral is among the figure, 1. the column blank; 2. round pie blank; 3. circular hole; 4. rotating shaft; 5. tubular blank; 6. step base.
The specific embodiment
Each step of the forging method of large scale conical shell of the present invention can be referring to Fig. 1 to shown in Figure 6, and it in turn includes the following steps:
(1) jumping-up is processed into round pie 2 with blank by column 1, as shown in Figure 1;
(2) go out a circular hole 3 at blank 2 centers of round pie, as shown in Figure 2;
(3) rotating shaft 4 is passed the circular hole of blank, rotating shaft drives the blank rotation, from the outer lateral side of blank blank is exerted pressure simultaneously, blank is processed into tubular 5, as shown in Figure 3;
(4) rotating shaft drives the blank rotation, simultaneously from the blank outside to blank segmentation exert pressure, step base 6 is processed in the blank outside of tubular, as shown in Figure 4;
(5) rotating shaft drives the rotation of step base, simultaneously the highest step of step base is exerted pressure, and the step base is processed into the blank of large scale conical shell, and as shown in Figure 5, arrow is an application of force direction among the figure;
(6) blank of large scale conical shell is repaired, obtain large scale conical shell, as shown in Figure 6.
Also comprise the step that eliminates stress afterwards in described step (5).
In the process of step (5), simultaneously blank is heated its temperature of maintenance in step (1).
Above-mentioned two steps can improve the mechanical performance of large scale conical shell, make it have better fatigue strength and toughness.
The forging method of large scale conical shell provided by the present invention, its step is simple, can conveniently produce well behaved large scale conical shell.
Claims (3)
1. the forging method of a large scale conical shell is characterized in that, in turn includes the following steps:
(1) jumping-up is processed into round pie with blank by column;
(2) go out a circular hole at the blank center of round pie;
(3) rotating shaft is passed the circular hole of blank, rotating shaft drives the blank rotation, from the outer lateral side of blank blank is exerted pressure simultaneously, and blank is processed into tubular;
(4) rotating shaft drives the blank rotation, simultaneously from the blank outside to blank segmentation exert pressure, the step base is processed in the blank outside of tubular;
(5) rotating shaft drives the rotation of step base, simultaneously the highest step of step base is exerted pressure, and the step base is processed into the blank of large scale conical shell;
(6) blank of large scale conical shell is repaired, obtain large scale conical shell.
2. the forging method of large scale conical shell according to claim 1 is characterized in that, also comprises the step that eliminates stress afterwards in described step (5).
3. the forging method of large scale conical shell according to claim 1 is characterized in that, in the process of step (5), simultaneously blank is heated its temperature of maintenance in step (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101473313A CN100493765C (en) | 2006-12-15 | 2006-12-15 | Forging method of large scale conical barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101473313A CN100493765C (en) | 2006-12-15 | 2006-12-15 | Forging method of large scale conical barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101199979A CN101199979A (en) | 2008-06-18 |
| CN100493765C true CN100493765C (en) | 2009-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101473313A Expired - Fee Related CN100493765C (en) | 2006-12-15 | 2006-12-15 | Forging method of large scale conical barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100493765C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151777A (en) * | 2010-12-30 | 2011-08-17 | 二重集团（德阳）重型装备股份有限公司 | Process for forging cake-like forge piece with shoulder |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987343B (en) * | 2009-08-07 | 2012-12-05 | 上海重型机器厂有限公司 | Forging method of conical cylinder body of nuclear power equipment |
| CN102554088A (en) * | 2010-12-10 | 2012-07-11 | 上海重型机器厂有限公司 | Forging method for pressure vessel bottom head transition section of second-generation nuclear power station and mould |
| CN102319854A (en) * | 2011-08-18 | 2012-01-18 | 贵州航天新力铸锻有限责任公司 | Forging method for side end enclosures of supercritical steam-water separators |
| CN103658478B (en) * | 2012-09-24 | 2016-02-03 | 上海重型机器厂有限公司 | The manufacture method of nuclear power evaporator transition cone forge piece |
| CN105345415B (en) * | 2015-12-25 | 2017-11-17 | 贵州航宇科技发展股份有限公司 | The manufacture method of the flanged bowl-type ring forging of GH3536 alloys |
| CN105689629A (en) * | 2016-03-09 | 2016-06-22 | 无锡市派克重型铸锻有限公司 | Free forging method of novel ultrahigh conical ring part |
| CN106077386B (en) * | 2016-06-20 | 2019-08-09 | 安徽省瑞杰锻造有限责任公司 | It is a kind of large size in outer step barrel shape forging forging technology |
| CN108705023B (en) * | 2018-06-20 | 2020-09-01 | 二重（德阳）重型装备有限公司 | Profiling forging process for integrated pipe joint section forge piece |
| CN109201984B (en) * | 2018-10-08 | 2019-12-10 | 东南大学 | Forging method of conical cylinder |
| CN109482797B (en) * | 2018-12-29 | 2020-06-23 | 通裕重工股份有限公司 | Spinning forging method for large-inclination cake forging |
| CN111167983B (en) * | 2019-12-31 | 2022-01-28 | 太原重工股份有限公司 | Forging process of large cake forging with center hole and conical surface |
-
2006
- 2006-12-15 CN CNB2006101473313A patent/CN100493765C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151777A (en) * | 2010-12-30 | 2011-08-17 | 二重集团（德阳）重型装备股份有限公司 | Process for forging cake-like forge piece with shoulder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101199979A (en) | 2008-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HEAVY MACHINES PLANT CO., LTD. Free format text: FORMER OWNER: SHANGHAI HEAVY-DUTY MACHINERY FORGE PART FACTORY Effective date: 20091211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091211 Address after: No. 1800, Jiangchuan Road, Shanghai, Minhang District: 200245 Co-patentee after: Shanghai Heavy Machin Forging Factory Patentee after: Shanghai heavy-duty machine factory Co., Ltd. Address before: No. 1800, Jiangchuan Road, Shanghai, Minhang District: 200245 Patentee before: Shanghai Heavy Machin Forging Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20161215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |