CN104148787A - Flow forming technology for machining seal head - Google Patents
Flow forming technology for machining seal head Download PDFInfo
- Publication number
- CN104148787A CN104148787A CN201410413283.2A CN201410413283A CN104148787A CN 104148787 A CN104148787 A CN 104148787A CN 201410413283 A CN201410413283 A CN 201410413283A CN 104148787 A CN104148787 A CN 104148787A
- Authority
- CN
- China
- Prior art keywords
- end socket
- flow forming
- seal head
- machine
- welding
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
-
- 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)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a flow forming technology for machining a seal head. The technology includes the following steps of (1) blanking, wherein lines are drawn on a stainless steel plate for blanking; (2) welding; (3) drum pressing, wherein drum pressing operation can be performed by adopting a drum pressing machine just by aligning a die with a round piece; (4) flow forming, wherein if a semi-finished product is free of notches or cracks after being checked, an appropriate amount of butter is smeared on the semi-finished product to serve as a lubricating agent, and flow forming is performed through a flow forming machine; (5) grooving, wherein after being internally smeared with anti-splashing coating, the seal head is hung to a grooving machine, and a grooving rotary table lead screw is adjusted to be aligned to the center position; (6) grinding and pickling, wherein an automatic grinding machine is adopted for grinding a groove of the seal head, and the grinded seal head is pickled in an acid mode; (7) heat treating. The flow forming technology is simple and easy to implement and allows mass production, the manufactured seal head is good in seal performance, safe, reliable and capable of resisting high temperature, high pressure and corrosion, and the qualified rate is as high as 99%.
Description
technical field:
The spinning process that the present invention relates to a kind of end socket processing, belongs to end socket manufacturing technology field.
background technology:
End socket belongs to a kind of of boiler component in pressure vessel.Normally at the two ends of pressure vessel, use.There is again a kind of weld-end fittings product of doing exactly the use of shutoff at the end of pipeline.End socket is according to the difference of geometry, can be divided into spherical, oval, dish-shaped, spherical, conical shell and flat cover etc. several, and wherein spherical, oval, dish and ball crown type end socket are referred to as again convex head.For convex head (except ball crown type end socket), its middle part is outwardly projection, is provided with a circle straight flange (being straight portion), and between this projection and straight portion, is corner transition portion on the openend of this projection.The projection of spherical, oval, dish and ball crown type end socket should be hemispherical, ellipse, dish and spherical mutually.
In chemical production equipment, end socket is one of main pressurized element wherein, in the manufacturing process of end socket, modal be in process weld seam, plate face particularly the straight section part of end socket easily there is crackle, reduce the qualification rate of end socket.
summary of the invention:
The present invention seeks to, be used for making up the deficiencies in the prior art, and a kind of spinning process of end socket processing is provided.
To achieve these goals, technical scheme of the present invention is as follows:
A spinning process for end socket processing, comprises following step:
(1) blanking: setting-out blanking on corrosion resistant plate, in described corrosion resistant plate, phosphorus content is less than 0.08%, and silicon content is less than 0.45%, and phosphorus content is less than 0.35%, and sulfur content is less than 0.03%, and nickel content is 10-12%;
(2) welding: welding temperature is 18-20 ℃, the anti-coating that splashes is smeared in groove both sides, can start welding;
(3) drum pressure: can adopt drum pressure machine to carry out drum pressure operation on mould and disk alignment;
(4) spinning: semi-finished product after non-notch, crackle, are smeared appropriate butter as lubricant on inspection, adopts spinning machine to carry out spinning.
(5) groove: smear the anti-coating that splashes in end socket after, end socket is hung on beveling machine, adjust groove turntable screw mandrel, centring position;
(6) grind and pickling: adopt autogenous mill to grind grooves with seal heads place, after grinding to end socket pickling;
(7) heat treatment: end socket is placed in to annealing furnace, is heated to 500-540 ℃, keep 120-180min, be naturally cooled to 300-350 ℃, keep 100-150min, be quickly cooled to normal temperature.
(8) polishing: polishing velocity is 50-80m/min, obtains finished product end socket after polishing completes.
The spinning process of described a kind of end socket processing, the described anti-coating that splashes is limewash or graphite water.
The spinning process of described a kind of end socket processing, welding method is argon arc welding.
The end socket obtaining according to the spinning process of described a kind of end socket processing.
Beneficial effect of the present invention is as follows:
Spinning process of the present invention is simple, easy to operate, can be mass-produced, and the end socket good airproof performance preparing, safe and reliable can high temperature resistance, anti-high pressure and anticorrosive, and qualification rate is high, and qualification rate reaches 99%.
the specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1:
In the present embodiment, a kind of spinning process of end socket processing, comprises following step:
(1) blanking: setting-out blanking on corrosion resistant plate, in described corrosion resistant plate, phosphorus content is less than 0.08%, and silicon content is less than 0.45%, and phosphorus content is less than 0.35%, and sulfur content is less than 0.03%, and nickel content is 12%;
(2) welding: welding temperature is 20 ℃, and limewash is smeared in groove both sides, can start welding, and welding method is argon arc welding;
(3) drum pressure: can adopt drum pressure machine to carry out drum pressure operation on mould and disk alignment;
(4) spinning: semi-finished product after non-notch, crackle, are smeared appropriate butter as lubricant on inspection, adopts spinning machine to carry out spinning.
(5) groove: smear limewash in end socket after, end socket is hung on beveling machine, adjust groove turntable screw mandrel, centring position;
(6) grind and pickling: adopt autogenous mill to grind grooves with seal heads place, after grinding to end socket pickling;
(7) heat treatment: end socket is placed in to annealing furnace, is heated to 540 ℃, keep 180min, be naturally cooled to 350 ℃, keep 150min, be quickly cooled to normal temperature.
(8) polishing: polishing velocity is 80m/min, obtains finished product end socket after polishing completes.
Embodiment 2:
In this enforcement, a kind of spinning process of end socket processing, comprises following step:
(1) blanking: setting-out blanking on corrosion resistant plate, in described corrosion resistant plate, phosphorus content is less than 0.08%, and silicon content is less than 0.45%, and phosphorus content is less than 0.35%, and sulfur content is less than 0.03%, and nickel content is 10%;
(2) welding: welding temperature is 18 ℃, and graphite water is smeared in groove both sides, can start welding, and welding method is argon arc welding;
(3) drum pressure: can adopt drum pressure machine to carry out drum pressure operation on mould and disk alignment;
(4) spinning: semi-finished product after non-notch, crackle, are smeared appropriate butter as lubricant on inspection, adopts spinning machine to carry out spinning.
(5) groove: smear graphite water in end socket after, end socket is hung on beveling machine, adjust groove turntable screw mandrel, centring position;
(6) grind and pickling: adopt autogenous mill to grind grooves with seal heads place, after grinding to end socket pickling;
(7) heat treatment: end socket is placed in to annealing furnace, is heated to 500 ℃, keep 120min, be naturally cooled to 300 ℃, keep 100min, be quickly cooled to normal temperature.
(8) polishing: polishing velocity is 50m/min, obtains finished product end socket after polishing completes.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof
.
Claims (5)
1. a spinning process for end socket processing, is characterized in that, comprises following step:
(1) blanking: setting-out blanking on corrosion resistant plate, in described corrosion resistant plate, phosphorus content is less than 0.08%, and silicon content is less than 0.45%, and phosphorus content is less than 0.35%, and sulfur content is less than 0.03%, and nickel content is 10-12%;
(2) welding: welding temperature is 18-20 ℃, the anti-coating that splashes is smeared in groove both sides, can start welding;
(3) drum pressure: can adopt drum pressure machine to carry out drum pressure operation on mould and disk alignment;
(4) spinning: semi-finished product after non-notch, crackle, are smeared appropriate butter as lubricant on inspection, adopts spinning machine to carry out spinning;
(5) groove: smear the anti-coating that splashes in end socket after, end socket is hung on beveling machine, adjust groove turntable screw mandrel, centring position;
(6) grind and pickling: adopt autogenous mill to grind grooves with seal heads place, after grinding to end socket pickling;
(7) heat treatment: end socket is placed in to annealing furnace, is heated to 500-540 ℃, keep 120-180min, be naturally cooled to 300-350 ℃, keep 100-150min, be quickly cooled to normal temperature.
2.(8) polishing: polishing velocity is 50-80m/min, obtains finished product end socket after polishing completes.
3. the spinning process of a kind of end socket processing according to claim 1, is characterized in that, the described anti-coating that splashes is limewash or graphite water.
4. the spinning process of a kind of end socket processing according to claim 1, is characterized in that, welding method is argon arc welding.
5. the end socket obtaining according to the spinning process of a kind of end socket processing described in above arbitrary claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413283.2A CN104148787A (en) | 2014-08-21 | 2014-08-21 | Flow forming technology for machining seal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413283.2A CN104148787A (en) | 2014-08-21 | 2014-08-21 | Flow forming technology for machining seal head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104148787A true CN104148787A (en) | 2014-11-19 |
Family
ID=51874507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410413283.2A Pending CN104148787A (en) | 2014-08-21 | 2014-08-21 | Flow forming technology for machining seal head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104148787A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234236A (en) * | 2015-09-17 | 2016-01-13 | 芜湖三花制冷配件有限公司 | Process for manufacturing container through spin forming of metal pipes |
| CN105537354A (en) * | 2015-11-27 | 2016-05-04 | 辽宁工业大学 | Novel hot spinning technique for shock absorber cylinder barrel |
| CN106002107A (en) * | 2016-06-26 | 2016-10-12 | 宜兴市联丰化工机械有限公司 | Pressing process for biphase alloy steel seal head |
| CN107855429A (en) * | 2017-12-19 | 2018-03-30 | 宜兴北海封头有限公司 | A kind of slab cone sealing head rotary press modelling special fixture and its manufacture craft |
| CN109513812A (en) * | 2018-09-25 | 2019-03-26 | 常州旷达威德机械有限公司 | A kind of processing method of large diameter thin wall arch austenitic stainless steel end socket |
| CN109834434A (en) * | 2017-11-29 | 2019-06-04 | 宜兴市联丰化工机械有限公司 | A kind of rotary pressed head technique |
| CN112658131A (en) * | 2020-12-30 | 2021-04-16 | 宜兴北海封头有限公司 | Arch-shaped end socket forming and manufacturing process |
-
2014
- 2014-08-21 CN CN201410413283.2A patent/CN104148787A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234236A (en) * | 2015-09-17 | 2016-01-13 | 芜湖三花制冷配件有限公司 | Process for manufacturing container through spin forming of metal pipes |
| CN105537354A (en) * | 2015-11-27 | 2016-05-04 | 辽宁工业大学 | Novel hot spinning technique for shock absorber cylinder barrel |
| CN106002107A (en) * | 2016-06-26 | 2016-10-12 | 宜兴市联丰化工机械有限公司 | Pressing process for biphase alloy steel seal head |
| CN109834434A (en) * | 2017-11-29 | 2019-06-04 | 宜兴市联丰化工机械有限公司 | A kind of rotary pressed head technique |
| CN107855429A (en) * | 2017-12-19 | 2018-03-30 | 宜兴北海封头有限公司 | A kind of slab cone sealing head rotary press modelling special fixture and its manufacture craft |
| CN109513812A (en) * | 2018-09-25 | 2019-03-26 | 常州旷达威德机械有限公司 | A kind of processing method of large diameter thin wall arch austenitic stainless steel end socket |
| CN112658131A (en) * | 2020-12-30 | 2021-04-16 | 宜兴北海封头有限公司 | Arch-shaped end socket forming and manufacturing process |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |