CN104690501A - Machining method of seal head of nuclear power water chamber - Google Patents
Machining method of seal head of nuclear power water chamber Download PDFInfo
- Publication number
- CN104690501A CN104690501A CN201510026246.0A CN201510026246A CN104690501A CN 104690501 A CN104690501 A CN 104690501A CN 201510026246 A CN201510026246 A CN 201510026246A CN 104690501 A CN104690501 A CN 104690501A
- Authority
- CN
- China
- Prior art keywords
- nuclear power
- water chamber
- power water
- segment blank
- spherical segment
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention relates to a machining method of a seal head of a nuclear power water chamber. The method comprises steps as follows: a spherical segment blank is obtained through die forging; four auxiliary press blocks are uniformly distributed and welded on the outer side of the spherical segment surface of the spherical segment blank and are compressed through external pressing plates, a support sleeve is processed, the upper end surface of the support sleeve is arc-shaped and is matched with the lower end of the spherical segment blank, and then the spherical segment blank is positioned and mounted on the support sleeve; the support sleeve is used for positioning a nuclear power water chamber seal head assembly, the upper end surface of an opening of the spherical segment blank is turned to be flat, and internal and external welding grooves are turned in the upper end surface of the opening; the external bottom surface of the spherical segment blank is positioned on a machine tool table for cutting and machining an inner hole and a welding groove; the four auxiliary press blocks are removed, the surface is smoothened, figure numbers are printed, and machining of the nuclear power water chamber seal head is finished. With the adoption of the support sleeve, the problem about positioning during turning of the nuclear power water chamber seal head assembly is solved; with the adoption of the technological scheme of welding the auxiliary press blocks, the clamping firmness is greatly increased, and the turning machining efficiency is greatly improved during turning of the bottom surface.
Description
Technical field
The present invention relates to a kind of processing method of end socket.
Background technology
Nuclear power water chamber head is a welding assembly of nuclear steam turbine, this parts die-forging forming, then the accurate baseplane of turning and bevel for welding, turning Φ 300 endoporus and 90 ° of bevel for weldings, because these parts are not located and clamping basal plane reliably, for ensureing the crudy of these parts, need the processing method developing, optimize these parts.
Summary of the invention
The object of the invention is the technical problem that cannot ensure nuclear power water chamber head machining accuracy in order to solve existing technique, providing a kind of processing method of nuclear power water chamber head.
The processing method of nuclear power water chamber head is carried out according to following steps:
Step one: blank die forging forming, obtains segment blank;
Step 2: uniform welding auxiliary briquetting everywhere outside the spherical interior surface of segment blank, process support cover, makes support set upper surface be arc thus matches with the lower end of segment blank, then by segment blank location and installation on support set;
Step 3: with support set location nuclear power water chamber head, segment blank open-mouth upper surface car is put down, bevel for welding inside and outside the turning of open-mouth upper surface;
Step 4: the 90 ° of bevel for weldings cutting the endoporus of Φ 300mm and the inner port edge of Φ 300mm;
Step 5: remove auxiliary briquetting, smoothing surface everywhere, print figure number, nuclear power water chamber head completion of processing.
The present invention compared with prior art has following effect: the present invention adopts support set, solve location difficult problem during turning nuclear power water chamber head parts, adopt the process program of the auxiliary briquetting of welding, greatly strengthen the steadiness of clamping, during turning bottom surface, substantially increase turnery processing efficiency.Owing to adopting rational cutting parameter, substantially reduce the distortion in the processing of nuclear power water chamber head, for postorder welding job provides Reliable guarantee.The present invention manufactures support set, and support set Internal Spherical Surface SR625 is consistent with nuclear power water chamber head spherical outside surface size, ensures positioning precision, during turning nuclear power water chamber head bottom surface, with this support set location, installs, makes workpiece have reliable location.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the schematic diagram of step one of the present invention;
Fig. 4 is the top view of Fig. 3.
Detailed description of the invention
Technical solution of the present invention is not limited to following cited detailed description of the invention, also comprises any combination between each detailed description of the invention.
Detailed description of the invention one: the processing method of present embodiment nuclear power water chamber head is carried out according to following steps:
Step one: blank die forging forming, obtains segment blank 1;
Step 2: uniform welding auxiliary briquetting 2 everywhere outside the spherical interior surface of segment blank 1, process support cover 3, makes support set 3 upper surface be arc thus match with the lower end of segment blank 1, then by segment blank 1 location and installation on support set 3;
Step 3: locate nuclear power water chamber head with support set 3, puts down segment blank 1 open-mouth upper surface car, bevel for welding inside and outside the turning of open-mouth upper surface;
Step 4: the 90 ° of bevel for weldings cutting the endoporus 4 of Φ 300mm and endoporus 4 edge of Φ 300mm;
Step 5: remove auxiliary briquetting 2, smoothing surface everywhere, print figure number, nuclear power water chamber head completion of processing.
Detailed description of the invention two: segment blank 1 open-mouth upper surface car is put down with the cutting depth of the amount of feeding of the rotating speed of 15r/min, 0.2mm/r, 2mm unlike in step 3 by present embodiment and detailed description of the invention one.Other is identical with detailed description of the invention one.
Detailed description of the invention three: one of present embodiment and detailed description of the invention one or two are unlike the 90 ° of bevel for weldings cutting the endoporus 4 of Φ 300mm and endoporus 4 edge of Φ 300mm in step 4 with the cutting depth of 25r/min rotating speed, the 0.2mm/r amount of feeding, 3mm.Other is identical with one of detailed description of the invention one or two.
Adopt following experimental verification effect of the present invention:
Experiment one:
The processing method of composition graphs 1, Fig. 2, Fig. 3, Fig. 4 nuclear power water chamber head is carried out according to following steps:
Step one: blank die forging forming, obtains segment blank 1;
Step 2: uniform welding auxiliary briquetting 2 everywhere outside the spherical interior surface of segment blank 1, outer pressing plate is utilized to compress auxiliary briquetting 2 everywhere, process support cover 3, make support set 3 upper surface be arc thus match with the lower end of segment blank 1, then by segment blank 1 location and installation on support set 3;
Step 3: locate nuclear power water chamber head with support set 3, puts down segment blank 1 open-mouth upper surface car, bevel for welding inside and outside the turning of open-mouth upper surface;
Step 4: be positioned on platen by segment blank 1 outer bottom, cuts 90 ° of bevel for weldings at the endoporus 4 of Φ 300mm and endoporus 4 edge of Φ 300mm;
Step 5: remove auxiliary briquetting 2, smoothing surface everywhere, print figure number, nuclear power water chamber head completion of processing.
Claims (3)
1. the processing method of nuclear power water chamber head, is characterized in that the processing method of nuclear power water chamber head is carried out according to following steps:
Step one: blank die forging forming, obtains segment blank (1);
Step 2: uniform welding auxiliary briquetting (2) everywhere outside the spherical interior surface of segment blank (1), process support cover (3), make support set (3) upper surface be arc thus match with the lower end of segment blank (1), then by segment blank (1) location and installation on support set (3);
Step 3: with support set (3) location nuclear power water chamber head, segment blank (1) open-mouth upper surface car is put down, bevel for welding inside and outside the turning of open-mouth upper surface;
Step 4: the 90 ° of bevel for weldings cutting the endoporus (4) of Φ 300mm and endoporus (4) edge of Φ 300mm;
Step 5: remove auxiliary briquetting (2), smoothing surface everywhere, print figure number, nuclear power water chamber head completion of processing.
2. the processing method of nuclear power water chamber head according to claim 1, is characterized in that being put down by segment blank (1) open-mouth upper surface car with the cutting depth of the amount of feeding of the rotating speed of 15r/min, 0.2mm/r, 2mm in step 3.
3. the processing method of nuclear power water chamber head according to claim 1, is characterized in that the 90 ° of bevel for weldings cutting the endoporus (4) of Φ 300mm and endoporus (4) edge of Φ 300mm in step 4 with the cutting depth of 25r/min rotating speed, the 0.2mm/r amount of feeding, 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026246.0A CN104690501A (en) | 2015-01-19 | 2015-01-19 | Machining method of seal head of nuclear power water chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026246.0A CN104690501A (en) | 2015-01-19 | 2015-01-19 | Machining method of seal head of nuclear power water chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104690501A true CN104690501A (en) | 2015-06-10 |
Family
ID=53338254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510026246.0A Pending CN104690501A (en) | 2015-01-19 | 2015-01-19 | Machining method of seal head of nuclear power water chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104690501A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749870A (en) * | 2021-01-11 | 2022-07-15 | 浙江镇田机械有限公司 | Process for improving deviation requirement after forming of high-precision large-size end socket |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2805767A1 (en) * | 2000-03-06 | 2001-09-07 | Essilor Int | Manufacturing process for ophthalmic lenses, in which a two stage cutting and machining process is controlled by a numerical control unit |
| CN101844291A (en) * | 2009-03-27 | 2010-09-29 | 上海重型机器锻件厂 | Molding method and mould of large nuclear-power spherical sealing head product |
| CN101905278A (en) * | 2009-07-07 | 2010-12-08 | 苏州昆仑先进制造技术装备有限公司 | Manufacturing process of water chamber sealing head and upsetting and extruding mold thereof |
| CN101920452A (en) * | 2009-06-15 | 2010-12-22 | 上海重型机器厂有限公司 | Production method for water chamber head of nuclear power equipment |
| CN102248362A (en) * | 2011-04-30 | 2011-11-23 | 泰安广大化工机械有限公司 | Method for manufacturing end socket of voltage stabilizer for nuclear power |
| CN103350142A (en) * | 2013-07-18 | 2013-10-16 | 上海电机学院 | Method for manufacturing water chamber end socket |
-
2015
- 2015-01-19 CN CN201510026246.0A patent/CN104690501A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2805767A1 (en) * | 2000-03-06 | 2001-09-07 | Essilor Int | Manufacturing process for ophthalmic lenses, in which a two stage cutting and machining process is controlled by a numerical control unit |
| CN101844291A (en) * | 2009-03-27 | 2010-09-29 | 上海重型机器锻件厂 | Molding method and mould of large nuclear-power spherical sealing head product |
| CN101920452A (en) * | 2009-06-15 | 2010-12-22 | 上海重型机器厂有限公司 | Production method for water chamber head of nuclear power equipment |
| CN101905278A (en) * | 2009-07-07 | 2010-12-08 | 苏州昆仑先进制造技术装备有限公司 | Manufacturing process of water chamber sealing head and upsetting and extruding mold thereof |
| CN102248362A (en) * | 2011-04-30 | 2011-11-23 | 泰安广大化工机械有限公司 | Method for manufacturing end socket of voltage stabilizer for nuclear power |
| CN103350142A (en) * | 2013-07-18 | 2013-10-16 | 上海电机学院 | Method for manufacturing water chamber end socket |
Non-Patent Citations (1)
| Title |
|---|
| 宋士成: ""大直径球形封头的加工技术"", 《一重技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749870A (en) * | 2021-01-11 | 2022-07-15 | 浙江镇田机械有限公司 | Process for improving deviation requirement after forming of high-precision large-size end socket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105345515B (en) | A kind of large thin-wall taper housing part digital control processing is loaded positioner | |
| CN103586640B (en) | The processing method of the yielding taper revolving body of the many openings of a kind of thin-walled and revolving body | |
| CN106734842A (en) | A kind of Mobile equipment shell system of processing | |
| CN110369958B (en) | Machining method of mechanical steam compressor special-shaped connecting plate | |
| CN207014061U (en) | A kind of high-precision frock clamp of copper soleplate | |
| CN108620820A (en) | In a kind of steam turbine gas port sealing ring anti-deformation processing method is pressed into pressure outer shell | |
| CN104002166A (en) | Auxiliary tooling and process for machining thin wall annular part | |
| CN204565678U (en) | A kind of automatic stocking formula draws taper hole key groove clamp | |
| CN104690501A (en) | Machining method of seal head of nuclear power water chamber | |
| CN103600187B (en) | For the grip device of hollow stationary blade turnover vapour limit spot welding operation | |
| CN102941480A (en) | Mould of boring ear hole of weld yoke | |
| CN203792065U (en) | Lateral hole machining mould of liquid level sealing cover | |
| CN105171341A (en) | In-shaft spline and outer circle coaxiality machining and positioning device and process method | |
| CN104476127B (en) | Cylinder head machining process | |
| CN105081419A (en) | Machining method for proteiform double-side-cavity square long rod part | |
| CN105643194A (en) | Lathe clamping machining and production process for motor end cover | |
| CN204381901U (en) | A kind of inner sleeve Milling Machining fixture | |
| CN102528594A (en) | Precision flat grinding method for large-diameter thin-walled parts | |
| CN203437963U (en) | Main machine barrel inner bore boring tool | |
| CN104384635B (en) | The processing method of grate opening on a kind of various dimensions curved surface | |
| CN204221070U (en) | The special milling groove craft equipment of a kind of cable Contra wire frame | |
| CN203792170U (en) | Tool for grinding of inner bores in sleeve parts | |
| US20160045968A1 (en) | Apparatus for electrochemically machining a metallic workpiece | |
| CN106624889A (en) | Automobile engine cylinder head milling fixture | |
| CN205765010U (en) | Electronic box casing machining frock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |