CN105945440A - Method for preventing pipe plates from welding deformation through strip surfacing of high-pressure air cooler pipe plates - Google Patents
Method for preventing pipe plates from welding deformation through strip surfacing of high-pressure air cooler pipe plates Download PDFInfo
- Publication number
- CN105945440A CN105945440A CN201610366045.XA CN201610366045A CN105945440A CN 105945440 A CN105945440 A CN 105945440A CN 201610366045 A CN201610366045 A CN 201610366045A CN 105945440 A CN105945440 A CN 105945440A
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- Prior art keywords
- welding
- tube sheet
- surfacing
- pipe
- built
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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
- 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
- B23K31/003—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 controlling of welding distortion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
A method for preventing pipe plates from welding deformation through strip surfacing of high-pressure air cooler pipe plates comprises the following steps that firstly, the periphery of the first pipe plate and the periphery of the second pipe plate are welded together through a plurality of connecting plates and then placed on a surfacing platform and a clamp, a welding machine head conveys a welding belt, a first alloy layer is formed on the surface of the first pipe plate in a surfacing manner, a workpiece is overturned, a first alloy layer is formed on the surface of the second pipe plate in a surfacing manner, and the workpiece is overturned again; and a second alloy layer is formed on the surface of the first pipe plate in a surfacing manner, then the workpiece is overturned, and a second alloy layer is formed on the surface of the second pipe plate in a surfacing manner. The method solves the problem about surfacing deformation of single pipe plates, the requirement for the assembly precision of the air cooler pipe plates and a heat exchange pipe is met, meanwhile, the straightening procedure after surfacing of the pipe plates is reduced, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of method that high-pressure air cooler tube sheet strip surfacing prevents tube sheet from producing welding deformation.
Background technology
High-pressure air cooler is one of key device of being hydrocracked in system of oil plant.Air cooler is revealed because corrosion produces,
The improper shut-down of whole hydrogenation plant can be caused, cause huge economic loss and directly affect the safety produced.In order to
Equipment investment cost be not significantly increased, again can use time of extension fixture, the manufacture of novel hydrogenation device high-pressure air cooler is adopted
It is used in carbon steel tube plate surface overlaying corrosion-resistant nickel-base high temperature alloy, the corrosion resistance of air cooler so can be greatly improved, it is achieved add
Hydrogen production device is in optimization of both safety and economy.But, air cooler tube sheet belongs to the plate pressure-bearing that length-width ratio is bigger
Parts, after single tube plate one side strip surfacing nickel-base high-temperature, tube sheet can produce big deformation, even across alignment process, the most not
Can reach the assembly precision of tube sheet and heat exchanger tube, therefore, solving tube sheet strip surfacing problem on deformation is novel hydrogenation device high pressure
One of key technology in air cooler manufacture.
Summary of the invention
Based on above weak point, it is an object of the invention to provide a kind of high-pressure air cooler tube sheet strip surfacing and prevent pipe
Plate produces the method for welding deformation, solves conventional single tube sheet built-up welding problem on deformation, has reached air cooler tube sheet and heat exchanger tube
Assembly precision requirement.
It is an object of the invention to be achieved through the following technical solutions: a kind of high-pressure air cooler tube sheet strip surfacing prevents pipe
Plate produces the method for welding deformation, as follows: first by multiple connecting plates, the first tube sheet and the second tube sheet surrounding to be welded on one
Rise, be then placed within built-up welding platform and fixture, welding head conveying welding, built-up welding one lamination gold on the first tube sheet surface,
Upset workpiece, at the second tube sheet surface overlaying one lamination gold, ground floor welding condition is: welding current 800-900A, voltage 26-
28V；Again overturn workpiece, at the first tube sheet surface overlaying second layer alloy, afterwards turn over workpiece, in the second tube sheet surface overlaying
Second layer alloy, second layer welding condition is: welding current 705-850A, voltage 26-28V, built-up welding speed 160-180mm/
Min, built-up welding interlayer temperature controls≤100 DEG C.
Advantages of the present invention is under the welding condition optimized, and the method using double tubesheet to replace built-up welding solves
Conventional single tube sheet built-up welding problem on deformation, has reached air cooler tube sheet and heat exchanger tube assembly precision requirement, meanwhile, has decreased tube sheet
The operation of heap postwelding alignment, improves production efficiency.
Description of drawings 1 is weld deposit process schematic diagram of the present invention.
The present invention is further explained by detailed description of the invention below according to Figure of description citing:
Embodiment 1
As it is shown in figure 1, a kind of high-pressure air cooler tube sheet strip surfacing prevents the method that tube sheet produces welding deformation, as follows: first
First tube sheet 3 and the second tube sheet 4 surrounding are welded together by multiple connecting plates 5, is then placed within built-up welding platform and fixture 6
On, welding head 1 carries welding 2, built-up welding one lamination gold on the first tube sheet 3 surface, overturns workpiece, on the second tube sheet 4 surface
Built-up welding one lamination gold, ground floor welding condition is: welding current 800A, voltage 28V；Again overturn workpiece, at the first tube sheet 3 table
Surface build-up welding second layer alloy, afterwards turns over workpiece, and at the second tube sheet 4 surface overlaying second layer alloy, second layer welding condition is:
Welding current 705A, voltage 28V, built-up welding speed 160mm/min, built-up welding interlayer temperature controls≤100 DEG C.By this heap welder
Process, it is ensured that tube sheet is not deformed at weld deposit process, improves Product Precision, it is to avoid follow-up alignment process, improves
Production efficiency.
Embodiment 2
A kind of high-pressure air cooler tube sheet strip surfacing prevents the method that tube sheet produces welding deformation, as follows: first by the first tube sheet 3
Welded together by multiple connecting plates 5 with the second tube sheet 4 surrounding, be then placed within built-up welding platform and fixture 6, welding head
1 conveying welding 2, built-up welding one lamination gold on the first tube sheet 3 surface, overturn workpiece, at the second tube sheet 4 surface overlaying one lamination
Gold, ground floor welding condition is: welding current 900A, voltage 26V；Again overturn workpiece, in the first tube sheet 3 surface overlaying second
Lamination gold, afterwards turns over workpiece, and at the second tube sheet 4 surface overlaying second layer alloy, second layer welding condition is: welding current
850A, voltage 26V, built-up welding speed 180mm/min, built-up welding interlayer temperature controls≤100 DEG C.
Claims (1)
1. the method that a high-pressure air cooler tube sheet strip surfacing prevents tube sheet from producing welding deformation, it is characterised in that method is such as
Under: first the first tube sheet and the second tube sheet surrounding are welded together by multiple connecting plates, be then placed within built-up welding platform and
On fixture, welding head conveying welding, built-up welding one lamination gold on the first tube sheet surface, overturn workpiece, on the second tube sheet surface
Built-up welding one lamination gold, ground floor welding condition is: welding current 800-900A, voltage 26-28V；Again overturn workpiece, first
Tube sheet surface overlaying second layer alloy, afterwards turns over workpiece, at the second tube sheet surface overlaying second layer alloy, second layer welding bar
Part is: welding current 705-850A, voltage 26-28V, built-up welding speed 160-180mm/min, and built-up welding interlayer temperature controls≤100
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366045.XA CN105945440A (en) | 2016-05-30 | 2016-05-30 | Method for preventing pipe plates from welding deformation through strip surfacing of high-pressure air cooler pipe plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366045.XA CN105945440A (en) | 2016-05-30 | 2016-05-30 | Method for preventing pipe plates from welding deformation through strip surfacing of high-pressure air cooler pipe plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105945440A true CN105945440A (en) | 2016-09-21 |
Family
ID=56910097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610366045.XA Pending CN105945440A (en) | 2016-05-30 | 2016-05-30 | Method for preventing pipe plates from welding deformation through strip surfacing of high-pressure air cooler pipe plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105945440A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118431A (en) * | 2020-01-21 | 2020-05-08 | 太仓巨仁光伏材料有限公司 | Device for improving low yield performance of photovoltaic solder strip |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350568A (en) * | 2011-09-26 | 2012-02-15 | 张家港化工机械股份有限公司 | Method for preventing tube sheets from deforming during overlaying process |
| CN102581513A (en) * | 2012-03-06 | 2012-07-18 | 中国科学院金属研究所 | Nickel-based welding wire for main equipment of nuclear island of nuclear power station |
| CN102990195A (en) * | 2012-12-13 | 2013-03-27 | 常州蓝翼飞机装备制造有限公司 | Surfacing process for corrosion-resistant layers of tube plates of large heat exchangers |
| DE102014216293A1 (en) * | 2014-08-15 | 2016-02-18 | Mahle International Gmbh | Method for generating turbulence-generating elements and tube with turbulence-generating elements |
| CN105478964A (en) * | 2016-02-01 | 2016-04-13 | 哈电集团（秦皇岛）重型装备有限公司 | Surfacing welding technology for large-area anti-corrosion layers of tube plate |
-
2016
- 2016-05-30 CN CN201610366045.XA patent/CN105945440A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350568A (en) * | 2011-09-26 | 2012-02-15 | 张家港化工机械股份有限公司 | Method for preventing tube sheets from deforming during overlaying process |
| CN102581513A (en) * | 2012-03-06 | 2012-07-18 | 中国科学院金属研究所 | Nickel-based welding wire for main equipment of nuclear island of nuclear power station |
| CN102990195A (en) * | 2012-12-13 | 2013-03-27 | 常州蓝翼飞机装备制造有限公司 | Surfacing process for corrosion-resistant layers of tube plates of large heat exchangers |
| DE102014216293A1 (en) * | 2014-08-15 | 2016-02-18 | Mahle International Gmbh | Method for generating turbulence-generating elements and tube with turbulence-generating elements |
| CN105478964A (en) * | 2016-02-01 | 2016-04-13 | 哈电集团（秦皇岛）重型装备有限公司 | Surfacing welding technology for large-area anti-corrosion layers of tube plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118431A (en) * | 2020-01-21 | 2020-05-08 | 太仓巨仁光伏材料有限公司 | Device for improving low yield performance of photovoltaic solder strip |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |