CN110883406A - Non ferrous metal pipe fitting welding protective sheath - Google Patents
Non ferrous metal pipe fitting welding protective sheath Download PDFInfo
- Publication number
- CN110883406A CN110883406A CN201911415100.XA CN201911415100A CN110883406A CN 110883406 A CN110883406 A CN 110883406A CN 201911415100 A CN201911415100 A CN 201911415100A CN 110883406 A CN110883406 A CN 110883406A
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- China
- Prior art keywords
- protective sheath
- welding
- ferrous metal
- pipe fitting
- sheath body
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- 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.)
- Pending
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/32—Accessories
-
- 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
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
- B23K9/326—Purge gas rings, i.e. devices for supplying or evacuating shielding gas inside of hollow or tubular articles, e.g. pipes, vessels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a non-ferrous metal pipe welding protective sleeve applied to the technical field of pipe welding, wherein one side of a protective sleeve body (3) of the non-ferrous metal pipe welding protective sleeve is provided with a sleeve hole I (4), the other side of the protective sleeve body (3) is provided with a sleeve hole II (5), the protective sleeve body (3) is provided with an air vent (6), a welding gun hole (7), a filler wire hole (8), an observation mirror (9) and an air outlet hole (10), the air vent (6) is communicated with an argon tank, the air vent (6) is positioned at one side of the protective sleeve body (3), and the air outlet hole (10) is positioned at the other side of the protective sleeve body (1). The oxygen is prevented from entering, the oxidation reaction is avoided, the color difference problem is avoided, and the quality of the pipe fitting is improved.
Description
Technical Field
The invention belongs to the technical field of pipe fitting welding, and particularly relates to a welding protective sleeve for a non-ferrous metal pipe fitting.
Background
In the technical field of pipe fitting welding, the non-ferrous metal pipe fitting is welded by argon arc welding. Because the diameter of the argon arc gun nozzle is small, the protection range is limited, and the welding bead and the base metal heat affected zone (20-30mm) which are still at high temperature are easily contacted with air, so that the heat affected zone reacts with oxygen in the air to form a color difference phenomenon, and the color difference seriously influences the appearance and the performance of the welding seam.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a simple structure, when welding non ferrous metal pipe fitting, protects pipe fitting welded structure and heat affected zone in the welding for pipe fitting welded joint and heat affected zone are isolated with the air, let pipe fitting welded joint and heat affected zone cool off to the normal atmospheric temperature at high temperature, have avoided the entering of oxygen, avoid taking place oxidation reaction, effectively avoid the colour difference problem to produce, improve the non ferrous metal pipe fitting welding protective sheath of pipe fitting performance.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to a non-ferrous metal pipe fitting welding protective sleeve which comprises a pipe fitting I to be welded and a pipe fitting II to be welded, and comprises a protective sleeve body, wherein one side of the protective sleeve body is provided with a sleeve hole I, the other side of the protective sleeve body is provided with a sleeve hole II, the protective sleeve body is provided with an air vent, a welding gun hole, a filler wire hole, an observation mirror and an air outlet hole, the air vent is communicated with an argon tank, a welding gun is arranged in a structure capable of being placed into the protective sleeve body through the welding gun hole, the air vent is positioned on one side of the protective sleeve body, and the air outlet hole is positioned on.
Treat that welded pipe spare I set up to passing trepanning I and extending to the inside structure of protective sheath body, treat that welded pipe spare II sets up to passing trepanning II and extending to the inside structure of protective sheath body.
The protective sleeve body comprises a body left end plate and a body right end plate, the vent hole is formed in the body left end plate and close to the lower portion of the body left end plate, and the vent hole is formed in the body right end plate and close to the upper portion of the body right end plate.
The protective sheath body on the air vent that sets up pass through connecting pipe and argon gas jar intercommunication, set up the governing valve on the connecting pipe.
The welding gun hole and the filler wire hole are both arranged at the upper part of the protective sleeve body, and the observation mirror is arranged in the mounting groove on the protective sleeve body.
And a shielding sleeve extending outwards is arranged at the position of the welding gun hole.
The shielding sleeve is of a horn mouth-shaped structure made of metal materials.
The protective sleeve body is of a structure made of metal materials.
The circle center of the trepanning I and the circle center of the trepanning II are located on the same straight line.
When the to-be-welded pipe fitting I of the non-ferrous metal pipe fitting welding protective sleeve passes through the sleeve hole I and extends to the inside of the protective sleeve body, the sleeve hole I is set to be capable of limiting the structure of shaking of the to-be-welded pipe fitting I, when the to-be-welded pipe fitting II passes through the sleeve hole I and extends to the inside of the protective sleeve body, the sleeve hole II is set to be capable of limiting the structure of shaking of the to-be-welded pipe fitting II.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
according to the welding protective sleeve for the non-ferrous metal pipe fitting, when the non-ferrous metal pipe fitting needs to be welded, the protective sleeve body is sleeved with the pipe fitting to be welded, the pipe fitting I to be welded penetrates through the sleeve hole I and extends into the protective sleeve body, the pipe fitting II to be welded penetrates through the sleeve hole II and extends into the protective sleeve body, the end portion, needing to be welded, of the pipe fitting I to be welded and the end portion, needing to be welded, of the pipe fitting II to be welded are contacted, the sleeve hole I and the sleeve hole II are used for positioning the welding state of the pipe fitting I to be welded and the welding state of the pipe fitting II to be welded, manual holding or machine. Before welding, argon is input through the air vent earlier, and inside argon gas got into protective sheath body for protective sheath body internal pressure increases, at this moment, argon gas can be with this internal air escape protective sheath body of protective sheath, makes the inside argon gas environment that forms of protective sheath body. At this moment, the welder hole is gone into inside the protective sheath body deeply, carries out argon arc welding to pipe fitting welding end, carries out the welding wire at any time through filling out the silk hole and send a silk, and can observe the inside welding condition of control protective sheath in real time through the sight glass, ensures that welding operation is accurate, high-efficient going on, forms closed protection welding mode. Above-mentioned structure, convenient to use can reach full argon gas environmental requirement through filling the inside air of the closed protective sheath body of argon gas evacuation in advance, and welding end and heat affected zone can not react with the oxygen in the air when guaranteeing the welding of non ferrous metal pipe fitting, can not form the colour difference phenomenon, effectively improves the welding seam outward appearance and the performance of pipe fitting. The welding protective sleeve for the non-ferrous metal pipe fitting is simple in structure, and when the non-ferrous metal pipe fitting is welded, the welding structure and the heat affected zone of the pipe fitting in welding are protected, so that the welding joint and the heat affected zone of the pipe fitting are isolated from air, the welding joint and the heat affected zone of the pipe fitting are cooled to normal temperature at high temperature, oxygen is prevented from entering, oxidation reaction is avoided, the problem of chromatic aberration is avoided, and the quality of the pipe fitting is improved.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic cross-sectional view of a welding protection sleeve for nonferrous metal pipes according to the present invention;
in the drawings, the reference numbers are respectively: 1. a pipe fitting I to be welded; 2. a pipe fitting II to be welded; 3. a protective sheath body; 4. trepanning I; 5. trepanning II; 6. a vent hole; 7. a gun bore; 8. filling welding wire holes; 9. an observation mirror; 10. an air outlet; 11. a left end plate of the body; 12. a right end plate of the body; 13. a connecting pipe; 14. adjusting a valve; 15. a shielding sleeve.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in the attached drawing 1, the invention relates to a non-ferrous metal pipe welding protective sleeve, the non-ferrous metal pipe comprises a pipe I1 to be welded and a pipe II 2 to be welded, the non-ferrous metal pipe welding protective sleeve comprises a protective sleeve body 3, one side of the protective sleeve body 3 is provided with a trepanning I4, the other side of the protective sleeve body 3 is provided with a trepanning II 5, the protective sleeve body 3 is provided with an air vent 6, a welding gun hole 7, a filler wire hole 8, an observation mirror 9 and an air outlet hole 10, the air vent 6 is communicated with an argon tank, a welding gun is arranged into a structure capable of being placed inside the protective sleeve body 3 through the welding gun hole 7, the air vent 6 is located on one side. Above-mentioned structure, when needs weld the non ferrous metal pipe fitting, with the protective sheath body with treat the welded tube spare suit, will treat that welded tube spare I1 passes trepanning I4 and extends to protective sheath body 3 inside, will treat that welded tube spare II 2 passes trepanning II 5 and extends to protective sheath body 3 inside, and treat welded tube spare I1 and treat that welded tube spare II 2 needs the welded tip contact, and trepanning I and trepanning II treat welded tube spare I1 and treat that the welding state of welded tube spare II 2 fixes a position, do not need artifical handheld or machine centre gripping, and is convenient accurate, effectively improve welding efficiency. Before welding, argon is input through the air vent earlier, and inside argon gas got into protective sheath body for protective sheath body internal pressure increases, at this moment, argon gas can be with this internal air escape protective sheath body of protective sheath, makes the inside argon gas environment that forms of protective sheath body. At this moment, the welder hole is gone into inside the protective sheath body deeply, carries out argon arc welding to pipe fitting welding end, carries out the welding wire at any time through filling out the silk hole and send a silk, and can observe the inside welding condition of control protective sheath in real time through the sight glass, ensures that welding operation is accurate, high-efficient going on, forms closed protection welding mode. Above-mentioned structure, convenient to use through filling the inside air of the closed protective sheath body of argon evacuation in advance, reaches full argon gas environmental requirement, and welding end and heat affected zone can not react with the oxygen in the air when guaranteeing the welding of non ferrous metal pipe fitting, can not form the colour difference phenomenon, effectively improves the welding seam outward appearance and the performance of pipe fitting. The welding protective sleeve for the non-ferrous metal pipe fitting is simple in structure, and when the non-ferrous metal pipe fitting is welded, the welding structure and the heat affected zone of the pipe fitting in welding are protected, so that the welding joint and the heat affected zone of the pipe fitting are isolated from air, the welding joint and the heat affected zone of the pipe fitting are cooled to normal temperature at high temperature, oxygen is prevented from entering, oxidation reaction is avoided, the problem of chromatic aberration is effectively avoided, and the performance of the pipe fitting is improved.
Treat that welded pipe spare I1 set up to pass trepanning I4 and extend to the inside structure of protective sheath body 3, treat that welded pipe spare II 2 sets up to pass trepanning II 5 and extend to the inside structure of protective sheath body 3. Above-mentioned structure, trepanning I4's setting, on the one hand, be convenient for treat that welded pipe spare I1 gets into protective sheath body inside, on the other hand, trepanning I4 can be treated welded pipe spare I1 and play the positioning action, rock when avoiding welding, and the pharmacy inserts just can realize and treat the location of welded pipe spare II 2, trepanning II 5's setting, on the one hand, be convenient for treat that welded pipe spare II 2 gets into protective sheath body inside, on the other hand, trepanning II 5 can treat welded pipe spare II 2 and play the positioning action, rock when avoiding welding, and the pharmacy inserts just can realize and treat the location of welded pipe spare I1. Like this, need not the manual work arrange treat that welded pipe spare I1 and treat that welded pipe spare II 2 or equipment centre gripping treat welded pipe spare I1 and treat welded pipe spare II 2, convenient operation improves the welding precision, low in labor strength.
The air vent 6 that sets up on protective sheath body 3 through connecting pipe 13 and argon gas jar intercommunication, set up governing valve 14 on the connecting pipe 13. Above-mentioned structure, the break-make and the argon gas supply volume of connecting pipe can be controlled to the governing valve, satisfy different pipe fitting welding. Trepanning I4 is twisted the dress through setting up the screw hole on screw thread portion and the protective sheath body, is convenient for change the trepanning I4 of different bores to satisfy the pipe fitting welding of different pipe diameters, the dress is twisted through setting up the screw hole on screw thread portion and the protective sheath body to trepanning II 5 of different bores of being convenient for change, thereby satisfy the pipe fitting welding of different pipe diameters, like this, need not weld a pipe fitting and just change the protective sheath, reduce cost.
Welding gun hole 7 and filler wire hole 8 all set up in protective sheath body 3 upper portion position, the mounting groove on protective sheath body 3 is installed to sight glass 9 in. In the above structure, the welding gun hole 7 is used for putting and taking out the welding gun, the filler wire hole 8 is used for putting the welding wire, and the observation hole is used for observing the inside.
And a shielding sleeve 15 extending outwards is arranged at the position of the welding gun hole 7. Above-mentioned structure shelters from the cover and plays the guard action outside the welding gun hole, protects operating personnel. On one hand, the spark in welding is prevented from jumping out of the welding hole, and on the other hand, sealing is achieved, and the internal argon environment is maintained.
The shielding sleeve 15 is a bell mouth-shaped structure made of metal material. The protective sleeve body 3 is of a structure made of metal materials. The circle center of the trepanning I4 and the circle center of the trepanning II 5 are located on the same straight line. The structure positions two pipe fittings to be welded.
When treating that non ferrous metal pipe fitting welding protective sheath treat that welded pipe spare I1 passes trepanning I4 and extends to protective sheath body 3 inside, trepanning I4 sets up to the structure that can restrict to treat that welded pipe spare I1 rocks, treat that welded pipe spare II 2 passes trepanning I4 and extends to protective sheath body 3 inside when, trepanning II 5 sets up to the structure that can restrict to treat that welded pipe spare II 2 rocks. By the structure, the pipe fitting to be welded cannot shake, welding is facilitated, and accuracy is improved.
According to the welding protective sleeve for the non-ferrous metal pipe fitting, when the non-ferrous metal pipe fitting needs to be welded, the protective sleeve body is sleeved with the pipe fitting to be welded, the pipe fitting I to be welded penetrates through the sleeve hole I and extends into the protective sleeve body, the pipe fitting II to be welded penetrates through the sleeve hole II and extends into the protective sleeve body, the end portion, needing to be welded, of the pipe fitting I to be welded and the end portion, needing to be welded, of the pipe fitting II to be welded are contacted, the sleeve hole I and the sleeve hole II are used for positioning the welding state of the pipe fitting I to be welded and the welding state of the pipe fitting II to be welded, manual holding or machine. Before welding, argon is input through the air vent earlier, and inside argon gas got into protective sheath body for protective sheath body internal pressure increases, at this moment, argon gas can be with this internal air escape protective sheath body of protective sheath, makes the inside argon gas environment that forms of protective sheath body. At this moment, the welder hole is gone into inside the protective sheath body deeply, carries out argon arc welding to pipe fitting welding end, carries out the welding wire at any time through filling out the silk hole and send a silk, and can observe the inside welding condition of control protective sheath in real time through the sight glass, ensures that welding operation is accurate, high-efficient going on, forms closed protection welding mode. Above-mentioned structure, convenient to use can reach full argon gas environmental requirement through filling the inside air of the closed protective sheath body of argon gas evacuation in advance, and welding end and heat affected zone can not react with the oxygen in the air when guaranteeing the welding of non ferrous metal pipe fitting, can not form the colour difference phenomenon, effectively improves the welding seam outward appearance and the performance of pipe fitting. The welding protective sleeve for the non-ferrous metal pipe fitting is simple in structure, and when the non-ferrous metal pipe fitting is welded, the welding structure and the heat affected zone of the pipe fitting in welding are protected, so that the welding joint and the heat affected zone of the pipe fitting are isolated from air, the welding joint and the heat affected zone of the pipe fitting are cooled to normal temperature at high temperature, oxygen is prevented from entering, oxidation reaction is avoided, the problem of chromatic aberration is avoided, and the quality of the pipe fitting is improved.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a non ferrous metal pipe fitting welding protective sheath, non ferrous metal pipe fitting including treating welding pipe fitting I (1) and treating welding pipe fitting II (2), its characterized in that: non ferrous metal pipe fitting welding protective sheath include protective sheath body (3), protective sheath body (3) one side sets up trepanning I (4), protective sheath body (3) opposite side sets up trepanning II (5), set up air vent (6) on protective sheath body (3), welding gun hole (7), filler wire hole (8), sight glass (9), venthole (10), air vent (6) and argon gas jar intercommunication, welder sets up to can place the inside structure of protective sheath body (3) through welding gun hole (7), air vent (6) are located protective sheath body (3) one side, venthole (10) are located protective sheath body (1) opposite side.
2. The non-ferrous metal pipe welding protective sleeve as claimed in claim 1, characterized in that: treat that welded pipe spare I (1) set up to pass trepanning I (4) and extend to the inside structure of protective sheath body (3), treat that welded pipe spare II (2) set up to pass trepanning II (5) and extend to the inside structure of protective sheath body (3).
3. A non-ferrous metal pipe welding protection sleeve according to claim 1 or 2, characterized in that: protective sheath body (3) including body left end board (11) and body right-hand member board (12), air vent (6) set up and are close to the lower part position at body left end board (11), venthole (10) set up and are close to the upper portion position at body right-hand member board (12).
4. A non-ferrous metal pipe welding protection sleeve according to claim 1 or 2, characterized in that: the protective sheath body (3) on air vent (6) that set up through connecting pipe (13) and argon gas jar intercommunication, set up governing valve (14) on connecting pipe (13).
5. A non-ferrous metal pipe welding protection sleeve according to claim 1 or 2, characterized in that: welding gun hole (7) and filler wire hole (8) all set up in protective sheath body (3) upper portion position, in the mounting groove of protective sheath body (3) is installed in sight glass (9).
6. A non-ferrous metal pipe welding protection sleeve according to claim 1 or 2, characterized in that: and a shielding sleeve (15) extending outwards is arranged at the position of the welding gun hole (7).
7. A non-ferrous metal pipe fitting welding protective sleeve as claimed in claim 6, characterized in that: the shielding sleeve (15) is of a horn mouth-shaped structure made of metal materials.
8. A non-ferrous metal pipe welding protection sleeve according to claim 1 or 2, characterized in that: the protective sleeve body (3) is of a structure made of metal materials.
9. A non-ferrous metal pipe welding protection sleeve according to claim 1 or 2, characterized in that: the circle center of the trepanning I (4) and the circle center of the trepanning II (5) are located on the same straight line.
10. A non-ferrous metal pipe welding protective sheath as claimed in claim 2, characterized in that: when non ferrous metal pipe fitting welding protective sheath wait that welded pipe spare I (1) pass trepanning I (4) and extend protective sheath body (3) inside, trepanning I (4) set up to the structure that can restrict to wait that welded pipe spare I (1) rocked, wait that welded pipe spare II (2) pass trepanning I (4) and extend protective sheath body (3) inside when, trepanning II (5) set up to the structure that can restrict to wait that welded pipe spare II (2) rocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415100.XA CN110883406A (en) | 2019-12-31 | 2019-12-31 | Non ferrous metal pipe fitting welding protective sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415100.XA CN110883406A (en) | 2019-12-31 | 2019-12-31 | Non ferrous metal pipe fitting welding protective sheath |
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| Publication Number | Publication Date |
|---|---|
| CN110883406A true CN110883406A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911415100.XA Pending CN110883406A (en) | 2019-12-31 | 2019-12-31 | Non ferrous metal pipe fitting welding protective sheath |
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| CN (1) | CN110883406A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590172A (en) * | 2020-06-05 | 2020-08-28 | 中国化学工程第六建设有限公司 | All-position welding construction method for large-diameter carbon steel thick-wall pipeline |
| CN112792445A (en) * | 2020-12-28 | 2021-05-14 | 江阴市博汇机械成套设备有限公司 | Welding protective sleeve |
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| CN201862936U (en) * | 2010-10-13 | 2011-06-15 | 沈阳飞机工业（集团）有限公司 | Convenient inert gas protection box used for welding |
| CN203426576U (en) * | 2013-07-18 | 2014-02-12 | 上海贤达美尔森过程设备有限公司 | Full-weld-seam gas protection device for active metal pipe fitting welding |
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| CN206689589U (en) * | 2017-04-27 | 2017-12-01 | 六合峰（天津）科技股份有限公司 | A kind of industy pipe welding supplementary structure |
| CN207656056U (en) * | 2017-12-20 | 2018-07-27 | 液化空气（中国）研发有限公司 | A kind of gas shield device for pipeline welding |
| CN110000452A (en) * | 2019-05-06 | 2019-07-12 | 上海空间推进研究所 | Propulsion system leads to argonaut welding tooling application method under class component protective atmosphere |
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2019
- 2019-12-31 CN CN201911415100.XA patent/CN110883406A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08224688A (en) * | 1995-02-22 | 1996-09-03 | Hitachi Ltd | Underwater machining device |
| JPH10296489A (en) * | 1997-04-23 | 1998-11-10 | Hitachi Ltd | Shield jig |
| CN201862936U (en) * | 2010-10-13 | 2011-06-15 | 沈阳飞机工业（集团）有限公司 | Convenient inert gas protection box used for welding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590172A (en) * | 2020-06-05 | 2020-08-28 | 中国化学工程第六建设有限公司 | All-position welding construction method for large-diameter carbon steel thick-wall pipeline |
| CN111590172B (en) * | 2020-06-05 | 2022-04-22 | 中国化学工程第六建设有限公司 | All-position welding construction method for large-diameter carbon steel thick-wall pipeline |
| CN112792445A (en) * | 2020-12-28 | 2021-05-14 | 江阴市博汇机械成套设备有限公司 | Welding protective sleeve |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20200317 |