CN109227043A - Ellipse head liner manufacture craft - Google Patents
Ellipse head liner manufacture craft Download PDFInfo
- Publication number
- CN109227043A CN109227043A CN201811125233.9A CN201811125233A CN109227043A CN 109227043 A CN109227043 A CN 109227043A CN 201811125233 A CN201811125233 A CN 201811125233A CN 109227043 A CN109227043 A CN 109227043A
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- Prior art keywords
- liner
- pot cover
- watermelon
- valve
- sample
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
A kind of ellipse head liner manufacture craft, the following steps are included: S1. makes liner pot cover: S11. is by division lines such as end socket inner surface N, S12. land used rule draw the outer trajectory line of liner pot cover on end socket inner surface, S13. subregional radian size and the width dimensions L such as measurement, S14. 1 watermelon valve liner pot cover sample is made, S15. remaining N-1 piece watermelon valve liner pot cover sample is manufactured, S16. assembly welding N piece etc. divides watermelon valve liner pot cover sample, S2. liner cone is made, S3. liner cylinder is made, S4. assembles ellipse head liner.The ellipse head liner manufacture craft uses veneer reeling machine roll forming, is not limited by end socket diameter, easy to make, accelerate duration progress, save cost, assembly precision is high, the ellipse head liner plays the role of pressure vessel anti-wear, effectively extends the service life of pressure vessel.
Description
Technical field
The present invention relates to a kind of manufacture craft of metallurgical pressure container inner lining, in particular to a kind of ellipse head liner production
Technique.
Background technique
The multi-stage heat exchanger that uses in metallurgy industry, reaction pressure vessel, since the uninterrupted disengaging of material is to equipment
Ontology is washed away repeatedly, keeps equipment attrition serious, to influence the normal design service life of pressure vessel；In order to reduce material pair
The erosive wear of apparatus body, generally taking in pressure vessel head section 4(includes the straight tube 42 on bottom bulkhead 41 and top, directly
The height of cylinder is generally 25mm, 40 mm or 50mm, as in Figure 2-4) it is internal that add antiwear head lining (also known as oval
Head lining) method, to guarantee the normal operation and service life of apparatus body.
Ellipse head liner is made of liner pot cover, liner cone and liner cylinder, liner pot cover and pressure vessel head
Section 4 41 bottom interior surface of end socket be bonded completely, liner cone be welded on lined cooker cover positioned at end socket 41 top and with envelope
Head is not bonded (in order to replace entire ellipse head liner)；Liner cylinder is welded in liner cone, its underpart and straight tube 42
Inner surface fitting, upper part is higher by straight tube, i.e. the diameter of liner cone small end is consistent with the diameter R1 of liner pot cover, and liner is bored
The diameter of body big end is consistent with the diameter R2 of liner cylinder (the straight tube inner surface of pressure vessel head section), the height of liner cone
H2 is that the curved surface height H of pressure vessel head section subtracts the curved surface height H1 of liner pot cover.
Wherein the shape of liner pot cover is more complicated, and orthographic projection is circle, and its curved surface radian is elliptic arc length, tradition
The method of production ellipse head liner generally uses:
1. punch forming；
2. being spliced using watermelon lobed formula fragment.
Above method the problem is that:
1. punch forming technology is on the one hand by the limitation of use condition, especially for the chemical industry smelting equipment of some large sizes, institute
The end socket size needed is larger, and common production equipment can not produce the so big end socket of size, makes relative difficulty；Another party
Face is using impact forming method is at high cost, the delivery cycle is long, assembly precision is not high enough；
2. need one piece one piece using watermelon lobed formula fragment splicing method carries out cutting debugging, welding assembly inside end socket, no
Only assembled and welding is very difficult, and construction speed is extremely slow, seriously affects manufacturing schedule and delivery duration.
Summary of the invention
The purpose of the present invention is to provide a kind of ellipse head liner manufacture crafts, to overcome existing for above-mentioned prior art
It is insufficient.
The technical solution adopted by the present invention is that:
A kind of ellipse head liner manufacture craft, comprising the following steps:
S1. liner pot cover is made:
S11. by division lines such as end socket inner surface N, the subregions such as N block are obtained；
S12. in piece round steel bar equal with liner pot cover curved surface height H1 of end socket inner surface center spot welding, with the circle
Rod iron central point is according to the outer that lined cooker cover gab diameter R1 is that size land used rule draw liner pot cover on end socket inner surface
Trajectory line, the outer trajectory line are the edge line that liner pot cover is overlapped with end socket inner surface, and round steel bar is removed；
S13. measurement etc. subregional radian size and width dimensions L:
S131. radially at interval of subregional radian sizes such as 1/16 lined cooker cover gab diameter R1 actual measurements,
S132. along the longitudinal direction at interval of the subregional width dimensions L such as 50mm actual measurement；
S14. 1 watermelon valve liner pot cover sample is made:
S141. setting-out blanking:
Setting-out blanking 1 than etc. subregional width dimensions L slightly larger watermelon valve liner pot cover blank；
S142. roll forming, cutting surplus:
Using the medium subregional radian size of step S13 and width dimensions L as the radian ruler of the watermelon valve liner pot cover blank
Very little and width dimensions L, first with veneer reeling machine by watermelon valve liner pot cover blank roll forming, then by watermelon valve liner pot cover blank into
The cutting of row surplus, is made 1 watermelon valve liner pot cover sample；
S15. remaining N-1 piece watermelon valve liner pot cover sample is manufactured:
The radian size and width dimensions of watermelon valve liner pot cover sample obtained in measuring process S142, and with the arc of the sample
It spends subject to size and width dimensions, setting-out, which is drawn, to be carried out numerical control programming and cut surplus, by remaining N-1 piece watermelon valve liner pot cover
N-1 piece watermelon valve liner pot cover sample is made in blank patch blanking, and the roll forming on veneer reeling machine；
S16. assembly welding N piece etc. divides watermelon valve liner pot cover sample:
Divide N piece obtained in step S14, S15 etc. to watermelon valve liner pot cover sample, using end socket inner surface as loose tool, organizes welding equipment
The mating interfaces for dividing watermelon valve liner pot cover sample such as adjacent 2 are connect, 1 liner pot cover is obtained；
S2. liner cone is made:
S21. setting-out blanking:
Its small end size dimension of setting-out 1 is slightly larger than lined cooker cover gab perimeter π R1, big end size dimension slightly larger than table in straight tube
Face aperture perimeter π R2, it is highly the plate slightly larger than liner cone height H2, draws and carry out numerical control programming and cut surplus；
S22. rolling forming:
The sheet material is rolled into cone barrel, and butt welding interface on veneer reeling machine, 1 liner cone is made；
S3. liner cylinder is made:
S31. setting-out blanking:
Its both ends size dimension of setting-out 1 is slightly larger than straight tube inner surface aperture perimeter π R2, highly for slightly larger than liner cylinder height
The plate of H3 draws and carries out numerical control programming and cut surplus；
S31. rolling forming:
The sheet material is rolled into cylindrical shape, and butt welding interface on veneer reeling machine, 1 liner cylinder is thus made；
S4. ellipse head liner is assembled:
S41. liner pot cover and liner cone are assembled in the steel platform of container workshop, and carry out spot welding reinforcing；
S42. liner cylinder is welded in liner cone, obtains 1 ellipse head liner；
Above-mentioned N is the arbitrary integer between 8~16.
Its further technical solution is: being provided on the curved surface of the watermelon valve liner pot cover blank along bisector direction a plurality of
Vertical masonry joint, which is 300mm.
Due to taking above-mentioned technical proposal, the ellipse head liner manufacture craft of the present invention is had the advantages that
1. the ellipse head liner manufacture craft of the present invention uses veneer reeling machine roll forming, tamping plant and press-moulding die are not needed,
It is not limited by end socket diameter, it is easy to make；And due to using veneer reeling machine roll forming, assembled mold is not needed, is rolled into
Type is at low cost, and the delivery cycle is short, at the same veneer reeling machine roll out come watermelon valve liner pot cover sample, each block size all,
Guarantee cutting stock precision with this, finally using end socket as loose tool, the direct welding assembly in end socket, assembly precision height.
2. since the steel plate thickness as blank is different and the difference of liner radial section diameter, what steel plate bending extended
Size is also different, controls production precision in order to be more accurate, and 1 west is first made in the ellipse head liner manufacture craft of the present invention
Melon valve liner pot cover sample, then it is subject to the size of the piece watermelon valve liner pot cover sample, setting-out, which is drawn, carries out numerical control programming, will
Remaining N-1 piece etc. divides watermelon valve liner pot cover blank patch blanking, and the roll forming on veneer reeling machine, and N-1 piece watermelon valve is made
Liner pot cover sample, finally the assembly welding N piece watermelon valve liner pot cover sample in end socket, obtains complete 1 ellipse head
Liner pot cover；Cutting debugging is carried out inside end socket without one piece one piece, and raw material blanking, field-installed construction is effectively reduced
Difficulty, meanwhile, patch blanking, the time needed for reducing the fabrication and installation of ellipse head inner piece accelerates duration progress, reduces artificial
Cost.
3. the watermelon valve liner pot cover of the present invention, curved surface are provided with a plurality of vertical masonry joint along bisector direction, a plurality of vertical masonry joint is long
Degree is that 300mm beats a plurality of vertical masonry joint with tool in end socket after assembly welding N piece watermelon valve liner pot cover sample, is made in entire
Inner pot lid is preferably adjacent to end socket inner surface, and finally a plurality of straight seam welding gets up.
4. first making liner pot cover, liner cone and inside lining sleeve using the ellipse head liner manufacture craft of the present invention
Body, then liner pot cover and liner cone are assembled in the steel platform of container workshop, and carry out spot welding reinforcing, finally in liner cone
Liner cylinder is welded, 1 ellipse head liner is thus obtained；Entire ellipse head liner is placed in ellipse head inner surface, it is right
Pressure vessel plays the role of anti-wear, effectively extends the service life of pressure vessel.
The technical characteristic of the ellipse head liner manufacture craft of the present invention is made with reference to the accompanying drawings and examples further
Explanation.
Detailed description of the invention
Fig. 1: the structural schematic diagram of the ellipse head liner of the present invention,
Fig. 2~Fig. 4: the structural schematic diagram of pressure vessel head section:
Fig. 2 is main view, and the top view (8 wait division lines, point to be welded with round steel bar) that Fig. 3 is Fig. 2, Fig. 4 is the portion the A enlarged drawing of Fig. 2；
Fig. 5 is watermelon valve liner pot cover blank structure schematic diagram；
Fig. 6 is watermelon valve liner pot cover sample structure schematic diagram；
Fig. 7 is the installation diagram of ellipse head liner and pressure vessel head section.
In figure:
1-liner pot cover, 11a-watermelon valve liner pot cover blank, 11b-watermelon valve liner pot cover sample, 101-vertical masonry joints, 2-
Liner cone, 3-liner cylinders, 4-pressure vessel head sections, 41-end sockets, 401-wait subregions, 42-straight tubes, 5-circles
Rod iron, QGL-cutting quantity.
Specific embodiment
Embodiment:
A kind of ellipse head liner manufacture craft, it is characterised in that: the following steps are included:
S1. liner pot cover 1 is made:
S11. by division lines such as 41 inner surface N of end socket, the subregions such as N block 401 are obtained；
S12. in piece round steel bar 5 equal with liner pot cover curved surface height H1 of end socket inner surface center spot welding, with the circle
Rod iron central point is according to the outer that lined cooker cover gab diameter R1 is that size land used rule draw liner pot cover on end socket inner surface
Trajectory line, the outer trajectory line are the edge line that liner pot cover is overlapped with end socket inner surface, and round steel bar is removed；
S13. measurement etc. subregions 401 radian size and width dimensions L:
S131. radially at interval of the radian ruler of the subregions 401 such as 1/16 lined cooker cover gab diameter R1 actual measurement
It is very little,
S132. along the longitudinal direction at interval of the width dimensions L of the subregions such as 50mm actual measurement 401；
S14. 1 watermelon valve liner pot cover sample 11b is made:
S141. setting-out blanking:
Setting-out blanking 1 than etc. subregions 401 the slightly larger watermelon valve liner pot cover blank 11a of width dimensions L, the watermelon valve
3 vertical masonry joints 101 are provided with along bisector direction on the curved surface of liner pot cover blank 11a, which is 300mm；
S142. roll forming, cutting surplus:
Using the radian size of the medium subregion 401 step S13 and width dimensions L as 11 a's of the watermelon valve liner pot cover blank
Radian size and width dimensions L, first with veneer reeling machine by the 11 a roll forming of watermelon valve liner pot cover blank, then by watermelon valve liner
11 a of pot cover blank carries out surplus cutting, and 1 watermelon valve liner pot cover sample 11b is made；
S15. remaining N-1 piece watermelon valve liner pot cover sample is manufactured:
The radian size and width dimensions of watermelon valve liner pot cover sample 11b obtained in measuring process S142, and with the sample
Radian size and width dimensions subject to, setting-out draw carry out numerical control programming simultaneously cut surplus, by remaining N-1 piece watermelon valve liner
N-1 piece watermelon valve liner pot cover sample is made in pot cover blank patch blanking, and the roll forming on veneer reeling machine；
S16. assembly welding N piece etc. divides watermelon valve liner pot cover sample:
Divide N piece obtained in step S14, S15 etc. to watermelon valve liner pot cover sample, using end socket inner surface as loose tool, organizes welding equipment
The mating interfaces for dividing watermelon valve liner pot cover sample such as adjacent 2 are connect, 1 liner pot cover 1 is obtained；
S2. liner cone 2 is made:
S21. setting-out blanking:
Its small end size dimension of setting-out 1 is slightly larger than lined cooker cover gab perimeter π R1, big end size dimension slightly larger than in straight tube 42
Surface opening perimeter π R2, it is highly the plate slightly larger than liner cone height H2, draws and carry out numerical control programming and cut surplus；
S22. rolling forming:
The sheet material is rolled into cone barrel, and butt welding interface on veneer reeling machine, 1 liner cone is made；
S3. liner cylinder 3 is made:
S31. setting-out blanking:
Its both ends size dimension of setting-out 1 is high slightly larger than liner cylinder slightly larger than 42 inner surface aperture perimeter π R2 of straight tube, highly
The plate of H3 is spent, is drawn and is carried out numerical control programming and cut surplus；
S31. rolling forming:
The sheet material is rolled into cylindrical shape, and butt welding interface on veneer reeling machine, 1 liner cylinder is thus made；
S4. ellipse head liner is assembled:
S41. liner pot cover and liner cone are assembled in the steel platform of container workshop, and carry out spot welding reinforcing；
S42. liner cylinder is welded in liner cone, obtains 1 ellipse head liner；
Above-mentioned N is the arbitrary integer between 8~16.
The plate of above-mentioned production liner cone and the setting-out of liner cylinder institute, can by the plate of multi-disc small size weld and
At.
The height H3 of liner cylinder is generally 20~25 times of 4 top straight tube of pressure vessel head section, 42 height, can also be with
The height of liner cylinder is decided according to actual needs.
The ellipse head liner manufacture craft principle of the present invention:
The ellipse head liner manufacture craft of the present invention uses veneer reeling machine roll forming, does not need tamping plant and press-moulding die, no
It is limited by end socket diameter, easy to make, which is first made 1 required watermelon valve liner pot cover sample, to improve production
Precision is subject to the size of the watermelon valve liner pot cover sample again, and setting-out, which is drawn, carries out numerical control programming, by remaining N-1 piece etc. point west
Melon valve liner pot cover blank patch blanking, and the roll forming on veneer reeling machine, watermelon valve liner pot cover sample needed for N-1 piece is made
Product, finally the assembly welding N piece watermelon valve liner pot cover sample in end socket, obtains complete 1 liner pot cover, by liner pot cover
It is placed in ellipse head, is bonded liner pot cover with ellipse head bottom interior surface, beat vertical masonry joint with tool, make entire lined cooker
Lid is preferably adjacent to end socket inner surface, and finally straight seam welding gets up, and is during which cut inside end socket without one piece one piece
Debugging, is effectively reduced raw material blanking, field-installed difficulty of construction, meanwhile, reduce ellipse head inner piece fabrication and installation institute
The time needed accelerates duration progress, reduces cost of labor；The liner cone made lined cooker is welded on again to cover, it will be interior
Lining body is welded in liner cone, obtains 1 ellipse head liner, play the role of to pressure vessel it is anti-wear, effectively
Extend the service life of pressure vessel.
Claims (2)
1. a kind of ellipse head liner manufacture craft, it is characterised in that: the following steps are included:
S1. liner pot cover (1) is made:
S11. by division lines such as end socket (41) inner surface N, the subregions such as N block (401) are obtained；
S12. in the center spot welding of end socket inner surface one round steel bar (5) equal with liner pot cover curved surface height H1, with this
Round steel bar central point is that size land used rule draw the outer of liner pot cover on end socket inner surface according to lined cooker cover gab diameter R1
Along trajectory line, which is the edge line that liner pot cover is overlapped with end socket inner surface, and round steel bar is removed；
S13. measurement etc. subregions (401) radian size and width dimensions L:
S131. radially at interval of the radian ruler of the subregions (401) such as 1/16 lined cooker cover gab diameter R1 actual measurement
It is very little,
S132. along the longitudinal direction at interval of the width dimensions L of the subregions such as 50mm actual measurement (401)；
S14. 1 watermelon valve liner pot cover sample (11b) is made:
S141. setting-out blanking:
Setting-out blanking 1 than etc. subregions (401) the slightly larger watermelon valve liner pot cover blank (11a) of width dimensions L；
S142. roll forming, cutting surplus:
Using the radian size of the medium subregion step S13 (401) and width dimensions L as the watermelon valve liner pot cover blank (11
A) radian size and width dimensions L, first with veneer reeling machine by watermelon valve liner pot cover blank (11 a) roll forming, then by watermelon
Valve liner pot cover blank (11 a) carries out surplus cutting, and 1 watermelon valve liner pot cover sample (11b) is made；
S15. remaining N-1 piece watermelon valve liner pot cover sample is manufactured:
The radian size and width dimensions of watermelon valve liner pot cover sample (11b) obtained in measuring process S142, and with the sample
Subject to the radian size and width dimensions of product, setting-out, which is drawn, to be carried out numerical control programming and cuts surplus, will be in remaining N-1 piece watermelon valve
N-1 piece watermelon valve liner pot cover sample is made in inner pot lid blank patch blanking, and the roll forming on veneer reeling machine；
S16. assembly welding N piece etc. divides watermelon valve liner pot cover sample:
Divide N piece obtained in step S14, S15 etc. to watermelon valve liner pot cover sample, using end socket inner surface as loose tool, organizes welding equipment
The mating interfaces for dividing watermelon valve liner pot cover sample such as adjacent 2 are connect, 1 liner pot cover (1) is obtained；
S2. liner cone (2) are made:
S21. setting-out blanking:
Its small end size dimension of setting-out 1 is slightly larger than straight tube (42) slightly larger than lined cooker cover gab perimeter π R1, big end size dimension
Inner surface aperture perimeter π R2, it is highly the plate slightly larger than liner cone height H2, draws and carry out more than numerical control programming and cutting
Amount；
S22. rolling forming:
The sheet material is rolled into cone barrel, and butt welding interface on veneer reeling machine, 1 liner cone is made；
S3. liner cylinder (3) are made:
S31. setting-out blanking:
Its both ends size dimension of setting-out 1 is slightly larger than straight tube (42) inner surface aperture perimeter π R2, highly for slightly larger than liner cylinder
The plate of height H3 draws and carries out numerical control programming and cut surplus；
S31. rolling forming:
The sheet material is rolled into cylindrical shape, and butt welding interface on veneer reeling machine, 1 liner cylinder is thus made；
S4. ellipse head liner is assembled:
S41. liner pot cover and liner cone are assembled in the steel platform of container workshop, and carry out spot welding reinforcing；
S42. liner cylinder is welded in liner cone, obtains 1 ellipse head liner；
Above-mentioned N is the arbitrary integer between 8~16.
2. ellipse head liner manufacture craft according to claim 1, it is characterised in that: the watermelon valve liner pot cover base
Expect to be provided with a plurality of vertical masonry joint (101) along bisector direction on the curved surface of (11a), which is 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125233.9A CN109227043B (en) | 2018-09-26 | 2018-09-26 | Manufacturing process of elliptical seal head lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125233.9A CN109227043B (en) | 2018-09-26 | 2018-09-26 | Manufacturing process of elliptical seal head lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109227043A true CN109227043A (en) | 2019-01-18 |
| CN109227043B CN109227043B (en) | 2020-10-30 |
Family
ID=65056263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811125233.9A Active CN109227043B (en) | 2018-09-26 | 2018-09-26 | Manufacturing process of elliptical seal head lining |
Country Status (1)
| Country | Link |
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| CN (1) | CN109227043B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102984A (en) * | 2019-06-04 | 2019-08-09 | 宜兴华威封头有限公司 | A kind of cone coiled forming technology of dome head |
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|---|---|---|---|---|
| US4252244A (en) * | 1979-05-18 | 1981-02-24 | Nooter Corporation | Layered pressure vessel head with machined surfaces |
| CN2220359Y (en) * | 1994-03-27 | 1996-02-21 | 熊世纬 | Four-roller rolling pressed ball shape container lamella and spherical annulus forming machine |
| CN1899756A (en) * | 2006-06-30 | 2007-01-24 | 河南科隆石化装备有限公司 | Method for processing seal head |
| US20090100678A1 (en) * | 2005-03-22 | 2009-04-23 | Fint Jeffry A | Rocket engine nozzle and method of fabricating a rocket engine nozzle using pressure brazing |
| CN102700870A (en) * | 2011-10-11 | 2012-10-03 | 国家核电技术有限公司 | Seal head module, large container and method for manufacturing seal head module and large container |
| CN202812767U (en) * | 2012-08-01 | 2013-03-20 | 河南神州重型封头有限公司 | Very-large-diameter torispherical head |
| CN103350328A (en) * | 2013-06-28 | 2013-10-16 | 宜兴华威封头有限公司 | Fragmentation processing and manufacturing process for end socket |
| CN106838307A (en) * | 2017-01-05 | 2017-06-13 | 安徽心连心重型封头有限公司 | A kind of new eighth ball aluminum corner brace alloy end enclosure and preparation method |
| CN107931965A (en) * | 2017-10-23 | 2018-04-20 | 宜兴市九洲封头锻造有限公司 | A kind of dual phase steel end socket divides valve moulding process |
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2018
- 2018-09-26 CN CN201811125233.9A patent/CN109227043B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252244A (en) * | 1979-05-18 | 1981-02-24 | Nooter Corporation | Layered pressure vessel head with machined surfaces |
| CN2220359Y (en) * | 1994-03-27 | 1996-02-21 | 熊世纬 | Four-roller rolling pressed ball shape container lamella and spherical annulus forming machine |
| US20090100678A1 (en) * | 2005-03-22 | 2009-04-23 | Fint Jeffry A | Rocket engine nozzle and method of fabricating a rocket engine nozzle using pressure brazing |
| CN1899756A (en) * | 2006-06-30 | 2007-01-24 | 河南科隆石化装备有限公司 | Method for processing seal head |
| CN102700870A (en) * | 2011-10-11 | 2012-10-03 | 国家核电技术有限公司 | Seal head module, large container and method for manufacturing seal head module and large container |
| CN202812767U (en) * | 2012-08-01 | 2013-03-20 | 河南神州重型封头有限公司 | Very-large-diameter torispherical head |
| CN103350328A (en) * | 2013-06-28 | 2013-10-16 | 宜兴华威封头有限公司 | Fragmentation processing and manufacturing process for end socket |
| CN106838307A (en) * | 2017-01-05 | 2017-06-13 | 安徽心连心重型封头有限公司 | A kind of new eighth ball aluminum corner brace alloy end enclosure and preparation method |
| CN107931965A (en) * | 2017-10-23 | 2018-04-20 | 宜兴市九洲封头锻造有限公司 | A kind of dual phase steel end socket divides valve moulding process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102984A (en) * | 2019-06-04 | 2019-08-09 | 宜兴华威封头有限公司 | A kind of cone coiled forming technology of dome head |
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| Publication number | Publication date |
|---|---|
| CN109227043B (en) | 2020-10-30 |
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