PL403056A1 - The method of automatic welding with concealed hatch on the cone of a large-size insert nozzle - Google Patents

The method of automatic welding with concealed hatch on the cone of a large-size insert nozzle

Info

Publication number
PL403056A1
PL403056A1 PL403056A PL40305612A PL403056A1 PL 403056 A1 PL403056 A1 PL 403056A1 PL 403056 A PL403056 A PL 403056A PL 40305612 A PL40305612 A PL 40305612A PL 403056 A1 PL403056 A1 PL 403056A1
Authority
PL
Poland
Prior art keywords
welding
cone
nozzle
hatch
concealed
Prior art date
Application number
PL403056A
Other languages
Polish (pl)
Other versions
PL227290B1 (en
Inventor
Yuwen Fu
Guofu Han
Original Assignee
Shanghai Boiler Works Co. Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Boiler Works Co. Ltd. filed Critical Shanghai Boiler Works Co. Ltd.
Publication of PL403056A1 publication Critical patent/PL403056A1/en
Publication of PL227290B1 publication Critical patent/PL227290B1/en

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
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
    • B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
    • B23K9/0286—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections with an electrode moving around the fixed tube during the welding operation
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/18—Submerged-arc welding
    • B23K9/186—Submerged-arc welding making use of a consumable electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

W wynalazku ujawniono sposób spawania lukiem krytym na stozku wstawianej dyszy o duzych rozmiarach obejmujacy: wykonanie otworu w scianie bocznej stozka (21); wprowadzenie dyszy (22) do stozka, zespawanie po okregu stalowego uszczelnienia pierscieniowego (23) w celu uzyskania polaczenia miedzy zewnetrzna powierzchnia stozka a dysza; wylozenie duzego konca otworu i malego konca otworu stozka podkladkami (26); zespawanie odcinka stalowej rury (24) ze skosnym zakonczeniem z dysza stozka przy scianie wewnetrznej; wstepne podgrzanie przed spawaniem; utworzenie przez spawanie spoiny (28) miedzy stozkiem a dysza z wykorzystaniem siodlowego urzadzenia (25) do spawania lukiem krytym; przeprowadzenie po spawaniu wodorowej obróbki powierzchni; struganie wzdluzne spoinowego, wzmocnienia sciany wewnetrznej i doszlifowywanie w celu uzyskania gladkosci. Do spawania wstawianej dyszy do stozka od strony sciany zewnetrznej zastosowano w wynalazku siodlowe urzadzenie do spawania lukiem krytym, co zapewnia ogromne zwiekszenie wydajnosci spawania, ograniczenie wplywu czynnika ludzkiego na jakosc spawania, skuteczne zapewnienie odpowiedniej jakosci spawania, unikniecie trudnosci zwiazanych z przerabianiem takiej spoiny dyszy, skrócenie cyklu wytwarzania i zmniejszenie kosztów wytwarzania.The invention discloses a method of welding a concealed hatch on a cone of a large-sized insert nozzle, comprising: making a hole in the side wall of the cone (21); inserting the nozzle (22) into the cone, welding along a steel ring seal (23) to obtain a connection between the outer surface of the cone and the nozzle; inserting the large end of the hole and the small end of the cone with washers (26); welding a section of steel pipe (24) with an oblique ending from the cone nozzle at the inner wall; preheating before welding; forming by welding a weld (28) between the cone and the nozzle using a saddle welding device (25); hydrogen surface treatment after welding; longitudinal joint planing, strengthening the inner wall and sanding to achieve smoothness. For welding of the nozzle inserted into the cone from the outside wall side, the invention uses a saddle welding device for concealed hatch welding, which ensures a huge increase in welding efficiency, limiting the impact of human factor on welding quality, effective assurance of welding quality, avoiding the difficulties associated with reworking such a nozzle weld, shortening the production cycle and reducing production costs.

PL403056A 2011-03-30 2012-02-16 Method for automatic submerged arc welding on the cone of the insert of the nozzle of large size PL227290B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201110077469.1 2011-03-30
CN201110077469.1A CN102390002B (en) 2011-03-30 2011-03-30 Automatic submerged-arc welding method for large insertion-type adapting pipe on cone
PCT/CN2012/071232 WO2012129994A1 (en) 2011-03-30 2012-02-16 Automatic submerged arc welding method for large inserted connecting tube on cone

Publications (2)

Publication Number Publication Date
PL403056A1 true PL403056A1 (en) 2014-01-20
PL227290B1 PL227290B1 (en) 2017-11-30

Family

ID=45857453

Family Applications (1)

Application Number Title Priority Date Filing Date
PL403056A PL227290B1 (en) 2011-03-30 2012-02-16 Method for automatic submerged arc welding on the cone of the insert of the nozzle of large size

Country Status (4)

Country Link
CN (1) CN102390002B (en)
PL (1) PL227290B1 (en)
WO (1) WO2012129994A1 (en)
ZA (1) ZA201300785B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102699551B (en) * 2012-06-29 2015-03-04 四川蓝星机械有限公司 Method for welding oblique inserted pipe of large chemical equipment
CN105382438B (en) * 2015-12-24 2017-11-10 哈尔滨锅炉厂有限责任公司 New inclining tube welding by both sides groove and welding method
CN109366089B (en) * 2018-12-30 2020-08-04 中国石油天然气第一建设有限公司 Rapid assembling tool for straight pipe sections of small-caliber flanges
CN109894636A (en) * 2019-03-19 2019-06-18 兰州兰石重型装备股份有限公司 A kind of method of shape of a saddle pipe connecting flange height in quick determining cone
CN109822199A (en) * 2019-04-22 2019-05-31 晋西工业集团有限责任公司 A kind of process of continuous line welding
CN114147324B (en) * 2021-11-10 2023-10-24 大连船舶重工集团有限公司 High-efficiency welding method for large-sized perforated flange and thick-wall pipe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141870A (en) * 1982-02-19 1983-08-23 Sumikin Yousetsubou Kk Welding method of pipe
SE441249B (en) * 1984-02-24 1985-09-23 Esab Ab DEVICE FOR INTERNAL WELDING OF A HORN JOINT BETWEEN A FIRST AND ANOTHER ROD
JP2000107858A (en) * 1998-10-06 2000-04-18 Babcock Hitachi Kk Welded structure of pipe jointing part and welding method thereof
JP2003039167A (en) * 2001-07-30 2003-02-12 Hitachi Ltd Saddle type welding body, manufacturing method for saddle type welding body, working method for joining part, working device, and working control program
CN101041201A (en) * 2006-03-20 2007-09-26 上海锅炉厂有限公司 Saddle type union melt welding with plug in type little connection nozzle
CN100493799C (en) * 2006-03-20 2009-06-03 上海锅炉厂有限公司 Method of welding the plug in type connection tube and the un-orthogonal crossed connection joint of the cylinder
CN1947911A (en) * 2006-11-09 2007-04-18 上海锅炉厂有限公司 Automatic submerged-arc build-up welding process for drum surface round flange
CN201385194Y (en) * 2009-01-20 2010-01-20 甘肃中电科耀新能源装备有限公司 Special roller for manufacturing wind generating set tower
CN201471065U (en) * 2009-07-10 2010-05-19 江苏双良锅炉有限公司 Submerged arc welding machine head for small-diameter cylinder

Also Published As

Publication number Publication date
PL227290B1 (en) 2017-11-30
WO2012129994A1 (en) 2012-10-04
CN102390002B (en) 2014-04-09
ZA201300785B (en) 2013-12-23
CN102390002A (en) 2012-03-28

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