CN106180970A - A kind of for gasification furnace vessel flange strip surfacing method - Google Patents

A kind of for gasification furnace vessel flange strip surfacing method Download PDF

Info

Publication number
CN106180970A
CN106180970A CN201610706466.2A CN201610706466A CN106180970A CN 106180970 A CN106180970 A CN 106180970A CN 201610706466 A CN201610706466 A CN 201610706466A CN 106180970 A CN106180970 A CN 106180970A
Authority
CN
China
Prior art keywords
flange
welding
sealing
built
baffle ring
Prior art date
Application number
CN201610706466.2A
Other languages
Chinese (zh)
Other versions
CN106180970B (en
Inventor
周印梅
李亚鹏
郝晓东
吴和斌
Original Assignee
山西阳煤化工机械(集团)有限公司
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 山西阳煤化工机械(集团)有限公司 filed Critical 山西阳煤化工机械(集团)有限公司
Priority to CN201610706466.2A priority Critical patent/CN106180970B/en
Publication of CN106180970A publication Critical patent/CN106180970A/en
Application granted granted Critical
Publication of CN106180970B publication Critical patent/CN106180970B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/04Welding for other purposes than joining, e.g. built-up welding
    • B23K9/042Built-up welding on planar surfaces

Abstract

The invention belongs to strip surfacing field, be specially one for gasification furnace vessel flange strip surfacing method.A kind of for gasification furnace vessel flange strip surfacing method, during including sealing surface weld deposit, flange inner wall spot welding baffle ring;During inside surfacing, spot welding shell ring on sealing surface, it is used for stopping solder flux and transition built-up welding.Effectively achieving vessel flange all uses the automatic surfacing of band pole to complete, it is ensured that surfacing quality and outward appearance molding, improves built-up welding efficiency.

Description

A kind of for gasification furnace vessel flange strip surfacing method
Technical field
The invention belongs to strip surfacing field, be specially one for gasification furnace vessel flange strip surfacing method.Specifically Say by selecting reasonable built-up welding order, effectively utilize frock, it is achieved that gasification furnace vessel flange inwall and sealing surface strip surfacing, Edges and corners need not manual repair welding.
Background technology
Gasification furnace vessel flange internal diameter is relatively big, and material is Cr-Mo steel forgings, and inner surface and sealing surface must built-up welding stainless steels Matter, all uses strip surfacing, but edges and corners then can not get protection according to strip surfacing because solder flux cannot stop, and causing cannot Built-up welding.General employing strip surfacing is at corner angle 15~20mm, after strip surfacing completes, uses SMAW to carry out Built-up welding.SMAW is connected bad with strip surfacing lap-joint, defect, difficult quality guarantee easily occurs;It addition, outward appearance becomes Type is poor, and SMAW workload is big.
Summary of the invention
It is an object of the invention to provide a kind of gasification furnace vessel flange overlaying method, it is ensured that vessel flange inwall and sealing Face all uses the automatic surfacing of band pole to complete.
The present invention adopts the following technical scheme that realization: a kind of gasification furnace vessel flange strip surfacing method, including During built-up welding sealing surface, inner surface spot welding baffle ring;During built-up welding inner surface, spot welding pipe nipple on sealing surface weld deposit layer.Specifically comprise the following steps that (1) first built-up welding flange sealing surface:
1. baffle ring divide lobe group, spot welding is fixed on flange inner wall, it is desirable to baffle ring upper surface is concordant with flange sealing surface;
2. after baffle ring is fixing, using strip surfacing flange sealing surface, transition zone heap is welded to overlap about 5~8mm with baffle ring;Surface layer heap Postwelding, it is ensured that built-up welding thickness >=10mm;
3., after built-up welding completes, baffle ring is removed, and with abrasive machine polishing projection to seamlessly transitting with flange inner wall;
(2) built-up welding flange inner surface:
1. pipe nipple is welded on flange resurfacing welding face, it is desirable to interior alignment, border discontinuous welding outside pipe nipple;
2. after pipe nipple welds, using strip surfacing flange inner surface, transition zone heap is welded to concordant with sealing surface transition zone, surface layer heap It is welded to overlap about 8~10mm with pipe nipple;
3. after completing, removing pipe nipple, cicatrix machines removal in the lump with sealing surface;
(3) machining flange sealing surface overlay cladding thickness is to 7mm.
The invention discloses a kind of for gasification furnace vessel flange strip surfacing method, when built-up welding sealing surface, in flange Wall spot welding baffle ring;During built-up welding inner surface, spot welding shell ring on sealing surface;For stopping solder flux and transition built-up welding.Effectively achieve and set Standby flange all uses the automatic surfacing of band pole, it is ensured that surfacing quality and outward appearance molding, improves built-up welding efficiency.
Accompanying drawing explanation
Fig. 1 is the first step of the present invention: sealing surface strip surfacing view.
Fig. 2 is second step of the present invention: inner surface strip surfacing view.
Fig. 3 is the present invention the 3rd step: built-up welding machines schematic diagram after sealing surface after completing.
In figure: 1-baffle ring, 2-pipe nipple.
Detailed description of the invention
A kind of gasification furnace vessel flange strip surfacing method, comprises the steps: (1) first built-up welding flange sealing surface.
1., spot welding is fixed by 1 point of lobe group of baffle ring (welding 20 every 200) in flange inner wall such as Fig. 1, it is desirable to baffle ring 1 upper surface Concordant with flange sealing surface.
2. after baffle ring 1 is fixing, using strip surfacing flange sealing surface, transition zone heap is welded to overlap about 5~8mm with baffle ring; Surface layer heap postwelding, it is ensured that built-up welding thickness >=10mm.
3., after built-up welding completes, baffle ring is removed, and with abrasive machine polishing projection to seamlessly transitting with flange inner wall.
(2) built-up welding flange inner surface.
1. being welded on flange resurfacing welding face by pipe nipple 2 such as Fig. 2, it is desirable to interior alignment, outside pipe nipple 2, border discontinuous welding is (every 200 welderings 20).
2. after pipe nipple 2 welds, as Fig. 2 uses strip surfacing flange inner surface, transition zone heap to be welded to and sealing surface transition zone Concordant, surface layer heap is welded to overlap about 8~10mm with pipe nipple.
3. after completing, removing pipe nipple, cicatrix machines removal in the lump with sealing surface.
(3) flange sealing surface overlay cladding thickness is machined to 7mm such as Fig. 3.

Claims (2)

1. one kind is used for gasification furnace vessel flange strip surfacing method, it is characterised in that comprise the following steps:
(1) first built-up welding flange sealing surface:
1. baffle ring divide lobe group, spot welding is fixed on flange inner wall, it is desirable to baffle ring upper surface is concordant with flange sealing surface;
2. after baffle ring is fixing, using strip surfacing flange sealing surface, transition zone heap is welded to overlap about 5~8mm with baffle ring;Surface layer heap Postwelding, it is ensured that built-up welding thickness >=10mm;
3., after built-up welding completes, baffle ring is removed, and with abrasive machine polishing projection to seamlessly transitting with flange inner wall;
(2) built-up welding flange inner surface:
1. pipe nipple is welded on flange resurfacing welding face, it is desirable to interior alignment, border discontinuous welding outside pipe nipple;
2. after pipe nipple welds, using strip surfacing flange inner surface, transition zone heap is welded to concordant with sealing surface transition zone, surface layer heap It is welded to overlap about 8~10mm with pipe nipple;
3. after completing, removing pipe nipple, cicatrix machines removal in the lump with sealing surface;
(3) machining flange sealing surface overlay cladding thickness is to 7mm.
2. as claimed in claim 1 a kind of for gasification furnace vessel flange strip surfacing method, it is characterised in that step (1) In 1. baffle ring divide lobe group that every 200, fixing employing of, spot welding is welded 20;Outside 1. pipe nipple in step (2), border discontinuous welding uses 20 are welded every 200.
CN201610706466.2A 2016-08-23 2016-08-23 One kind is used for gasification furnace vessel flange strip surfacing method CN106180970B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610706466.2A CN106180970B (en) 2016-08-23 2016-08-23 One kind is used for gasification furnace vessel flange strip surfacing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610706466.2A CN106180970B (en) 2016-08-23 2016-08-23 One kind is used for gasification furnace vessel flange strip surfacing method

Publications (2)

Publication Number Publication Date
CN106180970A true CN106180970A (en) 2016-12-07
CN106180970B CN106180970B (en) 2018-02-27

Family

ID=57524132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610706466.2A CN106180970B (en) 2016-08-23 2016-08-23 One kind is used for gasification furnace vessel flange strip surfacing method

Country Status (1)

Country Link
CN (1) CN106180970B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108296700A (en) * 2018-01-17 2018-07-20 兰州兰石重型装备股份有限公司 The method that pressure container flange ring joint face is slightly knocked against, scratched
CN108673063A (en) * 2018-05-28 2018-10-19 张化机(苏州)重装有限公司 A kind of gasification furnace takes over the processing method with flange
CN109693014A (en) * 2019-01-18 2019-04-30 洛阳双瑞金属复合材料有限公司 A kind of composite overlaying manufacturing method in flange end welding anti-corrosion gasket

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033957A (en) * 1973-07-31 1975-04-02
JPH0371978A (en) * 1989-08-09 1991-03-27 Fuji Kogyosho:Kk Field cladding reclaiming method for carrying table roller
CN201310695Y (en) * 2008-10-15 2009-09-16 常州市武进第二法兰锻造有限公司 Welding neck flange half-finished product
CN101642843A (en) * 2009-09-03 2010-02-10 上海锐迈重工有限公司 Flange resurfacing welding method
CN103934544A (en) * 2014-04-18 2014-07-23 沈阳大学 Method for preventing overlaying sealing surface from cracking
DE102014005096A1 (en) * 2014-04-08 2015-10-08 Mahle International Gmbh Cylinder liner, assembly and method for manufacturing a cylinder liner
CN105710500A (en) * 2014-12-04 2016-06-29 重庆聆益机械有限公司 Process for overlaying flange sealing surface with stainless steel flux-cored wire
CN105710498A (en) * 2014-12-03 2016-06-29 重庆远煌机械制造有限公司 Build-up welding technique for flange
CN105728897A (en) * 2014-12-09 2016-07-06 重庆凌云工具有限公司 Surfacing technique for sealing surface

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033957A (en) * 1973-07-31 1975-04-02
JPH0371978A (en) * 1989-08-09 1991-03-27 Fuji Kogyosho:Kk Field cladding reclaiming method for carrying table roller
CN201310695Y (en) * 2008-10-15 2009-09-16 常州市武进第二法兰锻造有限公司 Welding neck flange half-finished product
CN101642843A (en) * 2009-09-03 2010-02-10 上海锐迈重工有限公司 Flange resurfacing welding method
DE102014005096A1 (en) * 2014-04-08 2015-10-08 Mahle International Gmbh Cylinder liner, assembly and method for manufacturing a cylinder liner
CN103934544A (en) * 2014-04-18 2014-07-23 沈阳大学 Method for preventing overlaying sealing surface from cracking
CN105710498A (en) * 2014-12-03 2016-06-29 重庆远煌机械制造有限公司 Build-up welding technique for flange
CN105710500A (en) * 2014-12-04 2016-06-29 重庆聆益机械有限公司 Process for overlaying flange sealing surface with stainless steel flux-cored wire
CN105728897A (en) * 2014-12-09 2016-07-06 重庆凌云工具有限公司 Surfacing technique for sealing surface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108296700A (en) * 2018-01-17 2018-07-20 兰州兰石重型装备股份有限公司 The method that pressure container flange ring joint face is slightly knocked against, scratched
CN108673063A (en) * 2018-05-28 2018-10-19 张化机(苏州)重装有限公司 A kind of gasification furnace takes over the processing method with flange
CN108673063B (en) * 2018-05-28 2020-04-14 张化机(苏州)重装有限公司 Method for processing connecting pipe and flange of gasification furnace
CN109693014A (en) * 2019-01-18 2019-04-30 洛阳双瑞金属复合材料有限公司 A kind of composite overlaying manufacturing method in flange end welding anti-corrosion gasket

Also Published As

Publication number Publication date
CN106180970B (en) 2018-02-27

Similar Documents

Publication Publication Date Title
CN101543926B (en) Overlaying welding technology of ductile cast iron roller
CN102950370B (en) A kind of H profile steel submerged welding process method of welding web thickness and being greater than 16mm
CN102528237B (en) Welding process for carbon steel process pipeline
CN102009251B (en) Full-position welding method for pipeline by full-automatic external welding machine
CN103586566B (en) The semi-automatic argon arc welding method of composite bimetal pipe
CN101780591B (en) Twin arc submerged arc welding method for thick plate box beam/pillar
CN103639643B (en) Valve sealing face maintenance craft
CN104959725B (en) A kind of large-scale variable thickness part electron beam welding deformation control method
CN103170712B (en) A kind of tube socket fillet weld reheat crack prevention method
CN104028878B (en) A kind of assembling exempting from back chipping T-shaped penetration welding point and welding method
CN102151959B (en) High-speed welding production process and device for thin-walled steel tubes
CN101890562B (en) Nuclear island primary device connection tube safe end dissimilar metal welding technology
CN103624378A (en) Pipeline butt joint hot wire TIG welding method
CN102218578B (en) Path planning method for complicated-shape workpiece of robot bead weld based on radial bias
CN103831584A (en) Method for machining elliptical end socket
CN104722895B (en) A kind of TIG weld method being adapted to middle thick aluminium alloy
CN104625357A (en) H-steel or T-steel full-penetration back-gouging-free welding method
CN102699493B (en) Carbon dioxide (CO2) gas shielded welding vertical downwards welding method for waste heat boiler heat pipe and connecting plate
CN1238148C (en) Process for welding pipeline by automatic external welding machine
CN103394815B (en) A kind of method of circumferential weld laser-GMA composite welding
CN104128694A (en) Longitudinal seam red copper liner welding process of steel sheet pressure vessel and red copper liner used by same
CN104708172B (en) Full penetration weld method for fillet joint single-face J-shaped groove of box beam of vibration screen
CN102423825B (en) On-site splicing process of large-sized vacuum flange
CN102974916B (en) HP series grinding roller open arc built-up welding slip-off preventing welding method
CN105583523B (en) A kind of method of ultrasonic wave added Laser Deep Penetration Welding jointed sheet material

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant