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 PDFInfo
- 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
- welding
- flange
- sealing surface
- baffle ring
- built
- 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.)
- Granted
Links
- 238000002309 gasification Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims description 18
- 239000002344 surface layer Substances 0.000 claims description 6
- 210000000589 cicatrix Anatomy 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 230000004907 flux Effects 0.000 abstract description 3
- 229910000679 solder Inorganic materials 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000007778 shielded metal arc welding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/042—Built-up welding on planar surfaces
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- 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
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
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.
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 Active 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 (4)
| 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 |
| CN109668451A (en) * | 2017-10-17 | 2019-04-23 | 华东理工大学 | A kind of high-efficiency falling film type evaporation equipment and liquid distribution method |
| 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)
| 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 |
-
2016
- 2016-08-23 CN CN201610706466.2A patent/CN106180970B/en active Active
Patent Citations (9)
| 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668451A (en) * | 2017-10-17 | 2019-04-23 | 华东理工大学 | A kind of high-efficiency falling film type evaporation equipment and liquid distribution method |
| 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 |
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Denomination of invention: A Method of Strip Welding for Gasifier Equipment Flange Effective date of registration: 20231101 Granted publication date: 20180227 Pledgee: Industrial Bank Co.,Ltd. Taiyuan Branch Pledgor: SHANXI YANGMEI CHEMICAL MACHINERY (GROUP) Co.,Ltd. Registration number: Y2023980063774 |