CN102240839A - Welding process for cylinders with small diameter - Google Patents
Welding process for cylinders with small diameter Download PDFInfo
- Publication number
- CN102240839A CN102240839A CN2010101668089A CN201010166808A CN102240839A CN 102240839 A CN102240839 A CN 102240839A CN 2010101668089 A CN2010101668089 A CN 2010101668089A CN 201010166808 A CN201010166808 A CN 201010166808A CN 102240839 A CN102240839 A CN 102240839A
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- welding
- cylindrical shell
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- head
- minor diameter
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Abstract
The invention mainly discloses a welding process for cylinders with small diameter, which comprises the steps of: chamfering the inner side of the cylinder, and enabling a welder to move in the cylinder according to a welding track by use of a special welding tractor to complete the submerged arc welding on the inner side of the cylinder. The process has the advantages that: work load and work environment of workers are improved; the effect is enhanced, particularly the efficiency of the middle plate can be improved by 2-3 times; and the pass rate of welding seams by shooting is greatly improved, and the product quality is not much affected by human factors. In order to realize the process, the invention further discloses the special welding tractor which is characterized in that: the end part of the tractor is connected with a machine head by a connection tube extending forwards from the end part of the tractor, a plurality of wire guiding racks are arranged on the connection tube, welding wires on a welding wire plate extend into a wire guiding mechanism of the machine head through the wire guiding racks, and the bottom of the machine head is provided with a guide pulley insulated from the machine head.
Description
Technical field
The present invention relates to a kind of welding procedure, be specifically related to a kind of in inboard inboard groove, the welding procedure of welding the minor diameter cylindrical shell fast with the mode of submerged-arc welding of adopting of cylindrical shell.
Background technology
All submerged-arc welding can not be adopted for the cylindrical shell A below diameter 900mm seam, outside groove can only be adopted for the cylindrical shell of diameter about 400, the manual argon arc welding bottoming, the stick electrode weldering is filled and capping, perhaps submerged-arc welding capping; Perhaps adopt inboard groove, arc welding bottoming by hand, cover welding, submerged-arc welding capping behind the back chipping of the outside, stainless steel product will be considered backside gas protection problem in this way.The shortcoming of this technology: labor strength is big, if use inboard groove, work situation is poor, inefficiency, and also product quality is subjected to the influence of employee skill factor big, and the film making qualification rate is low.
Summary of the invention
Main task of the present invention is to provide a kind of welding procedure of minor diameter cylindrical shell, specifically is a kind of welding procedure that can carry out submerged-arc welding in minor diameter cylindrical shell inboard.
In order to solve above technical problem, the welding procedure of a kind of minor diameter cylindrical shell of the present invention is characterized in that: inside and outside both sides submerged-arc welding welding manner is carried out in described welding to the minor diameter cylindrical shell; Described inboard submerged-arc welding is at the inboard bevel of cylindrical shell, adopts special-purpose minor diameter pressure container cylinder submerged-arc welding welding tractor to slide along groove, makes welding machine finish the inboard submerged-arc welding of cylindrical shell in cylindrical shell.
In order to realize above technology, the present invention also provides a kind of minor diameter pressure container cylinder submerged-arc welding welding tractor, comprise dolly, be located at welding control cabinet and wire reel on the dolly, and the head of forming by thread guide mechanism, ignition tip, flux hopper, it is characterized in that: the tube connector that stretch out forward by a level end of described dolly is connected with head, tube connector is provided with several silk guide frame, welding wire on the wire reel stretches in the thread guide mechanism of head by silk guide frame, and be equipped with in head bottom one with the directive wheel of head insulation.
The invention has the advantages that: by at the inboard bevel of cylindrical shell, and carry out the inboard submerged-arc welding welding of cylindrical shell by welding machine special; Have the working strength of workers of improvement and operating environment, effect improves a lot.Particularly middle plate efficiency can improve 2-3 doubly.In addition, owing to adopt this welding machine special to weld, removed the drawback of former manual welding, the film making qualification rate improves a lot, and product quality is not affected substantially with human factor.
Description of drawings
Accompanying drawing is a minor diameter pressure container cylinder submerged-arc welding welding tractor structural representation of the present invention.
The specific embodiment
In order to realize the welding procedure of the inboard submerged-arc welding of minor diameter cylindrical shell of the present invention, a kind of minor diameter pressure container cylinder submerged-arc welding welding tractor of the present invention design, its structure be as shown in the figure: dolly 1, welding control cabinet 2, wire reel 3, thread guide mechanism 4, ignition tip 5, flux hopper 6, tube connector 7, silk guide frame 8, directive wheel 9.
Above-mentioned dolly 1 is provided with welding control cabinet 2 and wire reel 3, is wound with welding wire on the wire reel 3.Be provided with the head of forming by thread guide mechanism 4, ignition tip 5, flux hopper 6 in the dead ahead of dolly 1.
The tube connector 7 that stretch out forward by level the end of dolly 1 is connected with head.Tube connector 7 is provided with several silk guide frame 8, and the top of silk guide frame 8 is a seal wire ring, and the welding wire on the wire reel 3 passes the thread guide mechanism 4 that each seal wire ring enters head, finally enters in the ignition tip 5.
The bottom of head is provided with an insulating support, and directive wheel 9 is installed on the support, the groove profiling of the profile of this directive wheel 9 and pressure vessel.
During use, carry out following description in conjunction with technology of the present invention:
Open inboard groove at the inboard place to be welded of minor diameter cylindrical shell earlier, then dolly 1 is placed outside the pressure container cylinder, head stretches in the cylindrical shell by tube connector 7, the directive wheel 9 of head bottom drops in the groove, and during dolly 1 reach, directive wheel 9 moves ahead along groove, make solder flux in thread guide mechanism 4, ignition tip 5 and the flux hopper 6 on the head cooperate and carry out inboard submerged-arc welding, the welding standard of inboard submerged-arc welding is a conventional criteria, after welding is finished, again cylindrical shell is carried out conventional outside back chipping and submerged-arc welding.Final acceptance, inspection are promptly finished above-mentioned welding sequence after qualified.
Claims (2)
1. the welding procedure of a minor diameter cylindrical shell, it is characterized in that: inside and outside both sides submerged-arc welding welding manner is carried out in described welding to the minor diameter cylindrical shell; Described inboard submerged-arc welding is at the inboard bevel of cylindrical shell, adopts special-purpose minor diameter pressure container cylinder submerged-arc welding welding tractor to slide along groove, makes welding machine finish the inboard submerged-arc welding of cylindrical shell in cylindrical shell.
2. the welding procedure of a kind of minor diameter cylindrical shell according to claim 1, it is characterized in that: described minor diameter pressure container cylinder submerged-arc welding welding tractor, comprise dolly, be located at welding control cabinet and wire reel on the dolly, and the head of forming by thread guide mechanism, ignition tip, flux hopper, the tube connector that stretch out forward by a level end of described dolly is connected with head, tube connector is provided with several silk guide frame, welding wire on the wire reel stretches in the thread guide mechanism of head by silk guide frame, and be equipped with in head bottom one with the directive wheel of head insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101668089A CN102240839A (en) | 2010-05-10 | 2010-05-10 | Welding process for cylinders with small diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101668089A CN102240839A (en) | 2010-05-10 | 2010-05-10 | Welding process for cylinders with small diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102240839A true CN102240839A (en) | 2011-11-16 |
Family
ID=44959184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101668089A Pending CN102240839A (en) | 2010-05-10 | 2010-05-10 | Welding process for cylinders with small diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240839A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447673A (en) * | 2013-08-30 | 2013-12-18 | 四川蓝星机械有限公司 | Automatic submerged arc welding device for girth welding seams in barrel |
| KR101506306B1 (en) | 2014-08-19 | 2015-03-27 | 주식회사 산청기공 | Submerged arc welding device for pipe inside |
| CN104942495A (en) * | 2015-06-19 | 2015-09-30 | 江苏新金磊钢业有限公司 | Internally longitudinal seam welding machine |
| CN110026658A (en) * | 2019-01-21 | 2019-07-19 | 宁波信聚美机械制造有限公司 | A kind of pressure vessel welder and the method with the device manufacturing pressure vessel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1690666B1 (en) * | 1967-10-30 | 1971-02-04 | Kuntze Roehrenwerk Gmbh | Device for monitoring the powder feed during electric welding |
| JPS575624B2 (en) * | 1978-02-10 | 1982-02-01 | ||
| SU1214358A1 (en) * | 1984-12-17 | 1986-02-28 | Ордена Ленина И Ордена Трудового Красного Знамени Институт Электросварки Им.Е.О.Патона | Device for welding internal seams of pipes |
| CN2126132U (en) * | 1992-04-21 | 1992-12-30 | 北京宣武华光焊接工艺成套装备联营公司 | Small-diameter tube submerged-arc welding machine |
| CN1277903A (en) * | 1999-06-18 | 2000-12-27 | 现代重工业株式会社 | Three electrodes automatic submerged-arc welding machine used for welding small diameter pipeline |
| CN101138803A (en) * | 2007-09-30 | 2008-03-12 | 无锡市风华焊接设备有限公司 | Submerged arc welding carriage |
| CN201519834U (en) * | 2009-08-26 | 2010-07-07 | 中国海洋石油总公司 | Full automatic submerged arc welding machine and complete equipment thereof for welding small-caliber inseams |
-
2010
- 2010-05-10 CN CN2010101668089A patent/CN102240839A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1690666B1 (en) * | 1967-10-30 | 1971-02-04 | Kuntze Roehrenwerk Gmbh | Device for monitoring the powder feed during electric welding |
| JPS575624B2 (en) * | 1978-02-10 | 1982-02-01 | ||
| SU1214358A1 (en) * | 1984-12-17 | 1986-02-28 | Ордена Ленина И Ордена Трудового Красного Знамени Институт Электросварки Им.Е.О.Патона | Device for welding internal seams of pipes |
| CN2126132U (en) * | 1992-04-21 | 1992-12-30 | 北京宣武华光焊接工艺成套装备联营公司 | Small-diameter tube submerged-arc welding machine |
| CN1277903A (en) * | 1999-06-18 | 2000-12-27 | 现代重工业株式会社 | Three electrodes automatic submerged-arc welding machine used for welding small diameter pipeline |
| CN101138803A (en) * | 2007-09-30 | 2008-03-12 | 无锡市风华焊接设备有限公司 | Submerged arc welding carriage |
| CN201519834U (en) * | 2009-08-26 | 2010-07-07 | 中国海洋石油总公司 | Full automatic submerged arc welding machine and complete equipment thereof for welding small-caliber inseams |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447673A (en) * | 2013-08-30 | 2013-12-18 | 四川蓝星机械有限公司 | Automatic submerged arc welding device for girth welding seams in barrel |
| KR101506306B1 (en) | 2014-08-19 | 2015-03-27 | 주식회사 산청기공 | Submerged arc welding device for pipe inside |
| CN104942495A (en) * | 2015-06-19 | 2015-09-30 | 江苏新金磊钢业有限公司 | Internally longitudinal seam welding machine |
| CN110026658A (en) * | 2019-01-21 | 2019-07-19 | 宁波信聚美机械制造有限公司 | A kind of pressure vessel welder and the method with the device manufacturing pressure vessel |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111116 |