CN104493371A - Welding method of pressure container barrel - Google Patents
Welding method of pressure container barrel Download PDFInfo
- Publication number
- CN104493371A CN104493371A CN201410711029.0A CN201410711029A CN104493371A CN 104493371 A CN104493371 A CN 104493371A CN 201410711029 A CN201410711029 A CN 201410711029A CN 104493371 A CN104493371 A CN 104493371A
- Authority
- CN
- China
- Prior art keywords
- welding
- bending
- barrel
- shell ring
- pressure container
- 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
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
Abstract
The invention discloses a welding method of a pressure container barrel. The method comprises the following steps: firstly, selecting two barrel sections with the same diameters according to dimension requirements, inwardly bending one end of one barrel section, and ensuring that the bent part of the barrel section forms a 6 to 10 degree angle deviated from the part before bending, and secondly, enabling one end of the other barrel section to contact with the bent position of the first barrel section, machining a V-shaped outer groove with the angle being 60 to 65 degrees, then performing welding on the groove through a submerged-arc welding or manual welding method by taking HO8Mn2SiA as a welding stick, and ensuring that the welding height is 2.0 to 3.0 millimeters after welding. The pressure container barrel welded through the method is high in strength, and does not need increasing the thickness of the barrel to improve the strength of the barrel, thereby greatly reducing the weight of the pressure container.
Description
Technical field
The present invention relates to Welding Technique of Pressure Vessel field, be specifically related to a kind of welding method of pressure container cylinder.
Background technology
The cylindrical shell of generally large-scale pressure vessel is welded by plural shell ring.In existing solder technology, weld seam between shell ring and shell ring is common butt weld and angle welding, the pressure container cylinder intensity that this welding manner is made is not high, for increasing the intensity of pressure container cylinder, only have the thickness increasing shell ring, but after the increase of shell ring thickness, the weight of pressure vessel can be increased, the transport of pressure vessel is brought inconvenience, and the expense of transport can be increased.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the invention provides a kind of welding method of pressure container cylinder, the intensity of the pressure container cylinder adopting this technique to weld is large, and not needing increases cylindrical shell thickness to increase the intensity of cylindrical shell, thus significantly alleviates the weight of pressure vessel.
In order to realize above-mentioned object, the present invention by the following technical solutions:
A welding method for pressure container cylinder, comprises the steps:
1) choose the identical shell ring of two diameters according to dimensional requirement, by bending that is inside for one end of one of them shell ring, the part bending of this shell ring bending retrodeviate disintegrate curved before angle be 6 ~ 10 °;
2) contacted with by the bending part of the shell ring of bending one end of another shell ring, be then processed into the outer groove of V-type, bevel angle is 60 ~ 65 °, then with HO
8mn
2siA is welding wire, welds at groove place by the method for submerged-arc welding or manual welding, and the welding reinforcement after welding is 0.5 ~ 1.0 millimeter.
Technique scheme is improved further, needs the one end of carrying out welding to polish respectively by two shell rings, until expose metallic luster.
Have technique scheme known, the cylindrical shell of this processes consists of example with two shell rings, is bent inwards one end of one of them shell ring, is then contacted by the bending part of one end of another shell ring with the shell ring of this bending, is reprocessed into outer groove, finally with HO
8mn
2siA is welding wire, welds at groove place by the method for submerged-arc welding or manual welding.The crucial part of this technique is that bending angle is 6 ~ 10 °, and bevel angle is 60 ~ 65 °, and welding reinforcement is 0.5 ~ 1.0 millimeter.Test shows, the intensity of the pressure container cylinder adopting this technique to weld is large, its intensity is 2 ~ 5 times of the intensity of the pressure container cylinder adopting common butt weld welding method welding gained, adopts 4 ~ 8 times of the intensity of the pressure container cylinder of fillet weld seam method welding gained.Therefore, adopt this technique to weld the pressure vessel intensity of gained greatly, lightweight, convenient transport, saves freight.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pressure vessel adopting the welding method of embodiment 1 to obtain.
Fig. 2 is the partial enlarged drawing of I in Fig. 1.
Wherein, 1-shell ring, 2-cylindrical shell, 3-weld seam, 4-pressure vessel.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is specifically described.
Embodiment 1:
Choose the identical shell ring of two diameters according to dimensional requirement, are polished, respectively until expose metallic luster in two shell ring one end wherein.The inside bending in one end that one of them shell ring is polished, the part bending of this shell ring bending retrodeviate disintegrate curved before angle be 8 °.
The one end of being polished by another shell ring contacts with by the bending part of the shell ring of bending, is then processed into groove, and bevel angle is 63 °, then with HO
8mn
2siA is welding wire, welds at groove place with argon arc welding bonding machine, and the cylindrical shell of obtained pressure vessel, the welding reinforcement after welding is 0.8 millimeter.Submerged-arc welding or manual welding method of operating are carried out according to national standard according to the parameter of shell ring and welding.
As illustrated in fig. 1 and 2, the cylindrical shell 2 of this pressure vessel 4 is made up of two shell rings 1 structure of pressure container cylinder prepared by embodiment 1, and as shown in Figure 2, the weld seam 4 formed after the welding of finished edge place during welding as shown in Figure 2 in the bending of one of them cylindrical shell.
Make a strength test with the pressure vessel of the welding method of embodiment 1, common butt weld welding method and fillet weld seam method welding, three pressure vessels are except method for welding cylindrical shell is different, and other are all identical.Result of the test is as following table:
| Welding method | Cylindrical shell thickness (millimeter) | The pressure born |
| The welding method of embodiment 1 | 3 | 2.5MPa |
| Common butt weld welding method | 3 | 1.0MPa |
| Fillet weld seam method | 3 | 0.6MPa |
Embodiment 2:
Choose the identical shell ring of two diameters according to dimensional requirement, are polished, respectively until expose metallic luster in two shell ring one end wherein.The inside bending in one end that one of them shell ring is polished, the part bending of this shell ring bending retrodeviate disintegrate curved before angle be 6 °.
The one end of being polished by another shell ring contacts with by the bending part of the shell ring of bending, is then processed into groove, and bevel angle is 60 °, then with HO
8mn
2siA is welding wire, welds at groove place with argon arc welding bonding machine, and the cylindrical shell of obtained pressure vessel, the welding reinforcement after welding is 0.5 millimeter.
Embodiment 3:
Choose the identical shell ring of two diameters according to dimensional requirement, are polished, respectively until expose metallic luster in two shell ring one end wherein.The inside bending in one end that one of them shell ring is polished, the part bending of this shell ring bending retrodeviate disintegrate curved before angle be 10 °.
The one end of being polished by another shell ring contacts with by the bending part of the shell ring of bending, is then processed into groove, and bevel angle is 65 °, then with HO
8mn
2siA is welding wire, welds at groove place with argon arc welding bonding machine, and the cylindrical shell of obtained pressure vessel, the welding reinforcement after welding is 1 millimeter.
Claims (2)
1. a welding method for pressure container cylinder, the steps include:
1) choose the identical shell ring of two diameters according to dimensional requirement, by bending that is inside for one end of one of them shell ring, the part bending of this shell ring bending retrodeviate disintegrate curved before angle be 6 ~ 10 °;
2) contacted with by the bending part of the shell ring of bending one end of another shell ring, be then processed into the outer groove of V-type, bevel angle is 60 ~ 65 °, then with HO
8mn
2siA is welding wire, welds at groove place by the method for submerged-arc welding or manual welding, and the welding reinforcement after welding is 0.5 ~ 1.0 millimeter.
2. the welding method of pressure container cylinder according to claim 1, is characterized in that comprising the steps: to need the one end of carrying out welding to polish respectively by two shell rings, until expose metallic luster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711029.0A CN104493371A (en) | 2014-12-01 | 2014-12-01 | Welding method of pressure container barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711029.0A CN104493371A (en) | 2014-12-01 | 2014-12-01 | Welding method of pressure container barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104493371A true CN104493371A (en) | 2015-04-08 |
Family
ID=52934871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410711029.0A Pending CN104493371A (en) | 2014-12-01 | 2014-12-01 | Welding method of pressure container barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104493371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945155A (en) * | 2019-03-22 | 2019-06-28 | 哈尔滨锅炉厂有限责任公司 | The circumferential weld structure and its manufacturing method of water storage tank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU946860A1 (en) * | 1980-07-02 | 1982-07-30 | Предприятие П/Я Р-6930 | Soldered telescopic joint |
| CN2459134Y (en) * | 2000-07-28 | 2001-11-14 | 北京金属结构厂 | Circular shape joint welding seam groove structure for welding gas cylinder |
| US6953147B2 (en) * | 2002-08-22 | 2005-10-11 | Delphi Technologies, Inc. | Method for joining a tube to a member |
| CN2813184Y (en) * | 2005-06-20 | 2006-09-06 | 赵华 | Thin wall metal welding structure |
| CN2884068Y (en) * | 2006-03-08 | 2007-03-28 | 赵华 | Specially shaped metal parts welding structure |
| CN103143852A (en) * | 2011-12-06 | 2013-06-12 | 海信科龙电器股份有限公司 | Braze welding connector and method for welding connector |
-
2014
- 2014-12-01 CN CN201410711029.0A patent/CN104493371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU946860A1 (en) * | 1980-07-02 | 1982-07-30 | Предприятие П/Я Р-6930 | Soldered telescopic joint |
| CN2459134Y (en) * | 2000-07-28 | 2001-11-14 | 北京金属结构厂 | Circular shape joint welding seam groove structure for welding gas cylinder |
| US6953147B2 (en) * | 2002-08-22 | 2005-10-11 | Delphi Technologies, Inc. | Method for joining a tube to a member |
| CN2813184Y (en) * | 2005-06-20 | 2006-09-06 | 赵华 | Thin wall metal welding structure |
| CN2884068Y (en) * | 2006-03-08 | 2007-03-28 | 赵华 | Specially shaped metal parts welding structure |
| CN103143852A (en) * | 2011-12-06 | 2013-06-12 | 海信科龙电器股份有限公司 | Braze welding connector and method for welding connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945155A (en) * | 2019-03-22 | 2019-06-28 | 哈尔滨锅炉厂有限责任公司 | The circumferential weld structure and its manufacturing method of water storage tank |
| CN109945155B (en) * | 2019-03-22 | 2020-10-13 | 哈尔滨锅炉厂有限责任公司 | Method for manufacturing circular seam structure of water storage tank |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |
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| RJ01 | Rejection of invention patent application after publication |