CN110340502A - A kind of the inner hole argonaut welding welding machine silk filling pipette tips and its application method of the connection of exchanger tubes and tubesheets overlap joint - Google Patents
A kind of the inner hole argonaut welding welding machine silk filling pipette tips and its application method of the connection of exchanger tubes and tubesheets overlap joint Download PDFInfo
- Publication number
- CN110340502A CN110340502A CN201810293256.4A CN201810293256A CN110340502A CN 110340502 A CN110340502 A CN 110340502A CN 201810293256 A CN201810293256 A CN 201810293256A CN 110340502 A CN110340502 A CN 110340502A
- Authority
- CN
- China
- Prior art keywords
- welding
- pipette tips
- inner hole
- tubesheets
- copper core
- 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.)
- Withdrawn
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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
Abstract
A kind of the inner hole argonaut welding welding machine silk filling pipette tips and its application method of the connection of exchanger tubes and tubesheets overlap joint, belong to the tube sheet and heat exchanger tube welding field of heat exchanger, have filled up prior art blank.Its structure have copper core (1), ceramic jacket (2), steel wire (3), tungsten electrode fixing head (4), tungsten electrode (5), positioning sleeve (6), ceramic fixing head (7)；Wherein tungsten electrode fixing head (4) and steel wire be (3) assembled in copper core (1) on；Ceramic jacket be (2) assembled in copper core (1) on；(6) outer diameter is smaller than the internal diameter of heat exchanger tube for positioning sleeve, be assembled in ceramic jacket (2) and copper core (1) on；Ceramic fixing head be (7) tightened in copper core (1) on.Application method: bottom welding first is carried out from molten pipette tips with inner hole welding machine；It is programmed positioning on argon arc welding automatic welder, adjusts welding machine parameter by welding procedure and carries out welding；Filler wire welding is carried out using inner hole welding machine silk filling pipette tips, passes through the increase welding angle high strength that fills silk.The present invention is used cooperatively with internal bore welding from molten pipette tips, is suitable for exchanger tubes and tubesheets internal bore welding automatic argon arc welder.
Description
Technical field
The invention belongs to petrochemical equipment welding fields, are related to the welding of the tube sheet and heat exchanger tube of heat exchanger.
Background technique
The tube sheet of heat exchanger is flexible tube sheet in petrochemical equipment, and heat exchanger tube and two sides tube sheet are inner hole overlap joint fine melt
Saturating structure, such structure are a kind of exchanger tubes and tubesheets connection structure forms of new complete penetraction and fusion in welding, eliminate crevice corrosion, improve
Weld bond corrosion resistant degree of corrosion, antidetonation fatigue strength, can bear the Service Environments such as high temperature, high pressure；And there is stress at contact aperture
Collect medium and small, is not likely to produce the advantages such as root of joint crackle.It is each to design because the various advantages of such welding point connection structure are significant
Institute has gradually started the welding point using this structure type in the design.It needs when exchanger tubes and tubesheets weld by certainly
It is molten to make root full penetration, but design requirement is not achieved from molten rear weld strength, it is necessary to root is increased by landfilling area and welds meat, enhancing
Weld strength is to reach design requirement.But it is off currently, there are no can be used for such welded joint structure form in the market
Argonaut welding welding machine fill silk pipette tips.
Summary of the invention
We will solve the problems, such as: filling up prior art blank, invent a kind of the interior of exchanger tubes and tubesheets overlap joint connection
Hole argonaut welding welding machine silk filling pipette tips.
The present invention provides a kind of argonaut welding welding machine silk filling pipette tips of exchanger tubes and tubesheets inner hole overlap joint connection, knots
Structure has copper core 1, ceramic jacket 2, steel wire 3, tungsten electrode fixing head 4, tungsten electrode 5, positioning sleeve 6, ceramic fixing head 7；The tungsten electrode is solid
Determine first 4 and steel wire 3 be assembled in copper core 1；The ceramic jacket 2 is assembled in copper core 1；The 6 outer diameter ratio of positioning sleeve changes
The small 2mm of the internal diameter of heat pipe is assembled in ceramic jacket 2 and copper core 1；The ceramic fixing head 7 is tightened in copper core 1.
The application method of the inner hole argonaut welding welding machine silk filling pipette tips of exchanger tubes and tubesheets overlap joint connection:
1. when exchanger tubes and tubesheets inner hole welding of rapid cooling, first carrying out bottom welding from molten pipette tips with inner hole welding machine, making heat exchanger tube and pipe
Plate overlapping part root full penetration, and make exchanger tubes and tubesheets lap-joint weld seam rounding off；
2. the argonaut welding welding machine silk filling pipette tips of assembled exchanger tubes and tubesheets inner hole overlap joint connection are passed through top center
Wire hole be connected on welder head 8；
3. determining pipette tips using the preceding depth for first measuring the pore that exchanges heat on tube sheet according to pore depth and putting in the depth of tube sheet simultaneously
It makes a mark in pipette tips, makes tungsten electrode and welding wire just at position while welding；
4. being programmed positioning on argon arc welding automatic welder, welding machine parameter is adjusted by welding procedure and carries out welding；
5. carrying out filler wire welding using inner hole welding machine silk filling pipette tips, increases welding angle height by filling silk, make strength of welded joint
Reach design requirement.
The present invention is that inner hole overlaps full penetration structure welding and provides and essential has for heat exchanger tube and two sides tube sheet
Power tool, so that automation is realized in the internal bore welding welding of exchanger tubes and tubesheets overlap joint connection, and structure is simple, manufacturing cost
Low, operation is easy, and improves production efficiency.
Detailed description of the invention
Fig. 1 is the inner hole argonaut welding welding machine silk filling pipette tips main view of exchanger tubes and tubesheets overlap joint connection,
Fig. 2 is that argonaut welding welding machine silk filling pipette tips are installed to progress welded pipe head on welding machine,
Fig. 3 is argonaut welding welding machine silk filling pipette tips material object photo,
In figure: 1 copper core, 2 ceramic jackets, 3 steel wires, 4 tungsten electrode fixing heads, 5 tungsten electrodes, 6 positioning sleeves, 7 ceramic fixing heads, 8 welding machine machines
Head, 9 tube sheets, 10 heat exchanger tubes.
Specific embodiment
Now in conjunction with attached drawing, the present invention is further illustrated.
The pipette tips as shown in Figure 1, a kind of argonaut welding welding machine of exchanger tubes and tubesheets inner hole overlap joint connection fills silk, structure
There are copper core 1, ceramic jacket 2, steel wire 3, tungsten electrode fixing head 4, tungsten electrode 5, positioning sleeve 6, ceramic fixing head 7；The tungsten electrode is fixed
First 4 and steel wire 3 be assembled in copper core 1；The ceramic jacket 2 is assembled in copper core 1；6 outer diameter of positioning sleeve is than heat exchange
The small 2mm of the internal diameter of pipe is assembled in ceramic jacket 2 and copper core 1, and positioning sleeve 6 is protruded into heat exchanger tube and can be effectively prevent in welding process
Since pipette tips shaking causes the inhomogeneities of weld seam；The ceramic fixing head 7 is tightened in copper core 1.It is as shown in Figure 3
Install the pipette tips photo of welding.
The inner hole argonaut welding welding machine silk filling pipette tips application method of exchanger tubes and tubesheets overlap joint connection is as follows:
1. heat exchanger tube 9 and when 10 inner hole welding of rapid cooling of tube sheet, first carries out bottom welding from molten pipette tips with inner hole welding machine, make heat exchanger tube and
Tube sheet overlapping part root full penetration, and make exchanger tubes and tubesheets lap-joint weld seam rounding off；
2. the argonaut welding welding machine silk filling pipette tips of assembled exchanger tubes and tubesheets inner hole overlap joint connection are passed through top center
Wire hole be connected on welder head 8；
3. determining pipette tips using the preceding depth for first measuring the pore that exchanges heat on tube sheet according to pore depth and putting in the depth of tube sheet simultaneously
It makes a mark in pipette tips, makes tungsten electrode and welding wire just at position while welding；
4. being programmed positioning on argon arc welding automatic welder, welding machine parameter is adjusted by welding procedure and carries out welding；
5. carrying out filler wire welding using inner hole welding machine silk filling pipette tips, increases welding angle height by filling silk, make strength of welded joint
Reach design requirement.
Present invention silk filling pipette tips are used cooperatively with internal bore welding from molten pipette tips, complete the welding of exchanger tubes and tubesheets internal bore welding.
Such argonaut welding welding machine fills silk pipette tips suitable for exchanger tubes and tubesheets internal bore welding automatic argon arc welder, heat exchanger tube
Welding machine pipette tips, flexible and convenient operation are only needed to change when passing through molten and filler wire welding certainly with tube sheet.
Claims (2)
- The pipette tips 1. a kind of argonaut welding welding machine of exchanger tubes and tubesheets inner hole overlap joint connection fills silk, it is characterized in that: its structure has Copper core (1), ceramic jacket (2), steel wire (3), tungsten electrode fixing head (4), tungsten electrode (5), positioning sleeve (6), ceramic fixing head (7)；The tungsten electrode Fixing head (4) and steel wire be (3) assembled in copper core (1) on；The ceramic jacket be (2) assembled in copper core (1) on；The positioning sleeve is (6) Outer diameter is 2mm smaller than the internal diameter of heat exchanger tube, be assembled in ceramic jacket (2) and copper core (1) on；(7) the ceramic fixing head is tightened in copper core (1) on.
- The user of pipette tips 2. the inner hole argonaut welding welding machine of exchanger tubes and tubesheets overlap joint connection described in claim 1 fills silk Method, it is characterized in that:1. when exchanger tubes and tubesheets inner hole welding of rapid cooling, first carrying out bottom welding from molten pipette tips with inner hole welding machine, making heat exchanger tube and pipe Plate overlapping part root full penetration, and make exchanger tubes and tubesheets lap-joint weld seam rounding off；2. the argonaut welding welding machine silk filling pipette tips of assembled exchanger tubes and tubesheets inner hole overlap joint connection are passed through top center Wire hole be connected to welder head (8) on；3. determining pipette tips using the preceding depth for first measuring the pore that exchanges heat on tube sheet according to pore depth and putting in the depth of tube sheet simultaneously It makes a mark in pipette tips, makes tungsten electrode and welding wire just at position while welding；4. being programmed positioning on argon arc welding automatic welder, welding machine parameter is adjusted by welding procedure and carries out welding；5. carrying out filler wire welding using inner hole welding machine silk filling pipette tips, increases welding angle height by filling silk, make strength of welded joint Reach design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293256.4A CN110340502A (en) | 2018-04-04 | 2018-04-04 | A kind of the inner hole argonaut welding welding machine silk filling pipette tips and its application method of the connection of exchanger tubes and tubesheets overlap joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293256.4A CN110340502A (en) | 2018-04-04 | 2018-04-04 | A kind of the inner hole argonaut welding welding machine silk filling pipette tips and its application method of the connection of exchanger tubes and tubesheets overlap joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110340502A true CN110340502A (en) | 2019-10-18 |
Family
ID=68172527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810293256.4A Withdrawn CN110340502A (en) | 2018-04-04 | 2018-04-04 | A kind of the inner hole argonaut welding welding machine silk filling pipette tips and its application method of the connection of exchanger tubes and tubesheets overlap joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110340502A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066823A (en) * | 1998-09-15 | 2000-05-23 | Lageose; Michael M. | Semiautomatic tube welding apparatus |
| CN102019487A (en) * | 2010-11-23 | 2011-04-20 | 茂名重力石化机械制造有限公司 | Recessed type tube head automatic welding machine |
| CN202045440U (en) * | 2011-02-16 | 2011-11-23 | 天津津滨石化设备有限公司 | Inner bore welding device for argon tungsten-arc welding |
| CN202607057U (en) * | 2012-05-14 | 2012-12-19 | 兰州长征机械有限公司 | Deep-hole welder welding gun for pipes of air cooler |
| CN204148700U (en) * | 2014-09-05 | 2015-02-11 | 甘肃蓝科石化高新装备股份有限公司 | A kind of remote tungsten electrode argon arc welding gun |
| CN208513844U (en) * | 2018-04-04 | 2019-02-19 | 兰州兰石重型装备股份有限公司 | Pipe and tube sheet overlapped inner hole argonaut welding welding machine fill silk pipette tips |
-
2018
- 2018-04-04 CN CN201810293256.4A patent/CN110340502A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066823A (en) * | 1998-09-15 | 2000-05-23 | Lageose; Michael M. | Semiautomatic tube welding apparatus |
| CN102019487A (en) * | 2010-11-23 | 2011-04-20 | 茂名重力石化机械制造有限公司 | Recessed type tube head automatic welding machine |
| CN202045440U (en) * | 2011-02-16 | 2011-11-23 | 天津津滨石化设备有限公司 | Inner bore welding device for argon tungsten-arc welding |
| CN202607057U (en) * | 2012-05-14 | 2012-12-19 | 兰州长征机械有限公司 | Deep-hole welder welding gun for pipes of air cooler |
| CN204148700U (en) * | 2014-09-05 | 2015-02-11 | 甘肃蓝科石化高新装备股份有限公司 | A kind of remote tungsten electrode argon arc welding gun |
| CN208513844U (en) * | 2018-04-04 | 2019-02-19 | 兰州兰石重型装备股份有限公司 | Pipe and tube sheet overlapped inner hole argonaut welding welding machine fill silk pipette tips |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20191018 |