CN203918264U - A kind of steel cylinder preheating frock peculiar to vessel - Google Patents
A kind of steel cylinder preheating frock peculiar to vessel Download PDFInfo
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- CN203918264U CN203918264U CN201420301426.6U CN201420301426U CN203918264U CN 203918264 U CN203918264 U CN 203918264U CN 201420301426 U CN201420301426 U CN 201420301426U CN 203918264 U CN203918264 U CN 203918264U
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- girth sheets
- sticking plaster
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- girth
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Abstract
The utility model discloses a kind of steel cylinder preheating frock peculiar to vessel, comprise girth sheets I and girth sheets II, in girth sheets I and girth sheets II, cross-under has many sticking plaster I and Duo Gen sticking plaster II, the two ends that sticking plaster I is stretched out girth sheets I and girth sheets II are connected with respectively nut I and nut II, the two ends of sticking plaster I are also separately installed with roller I and roller II, the two ends of sticking plaster I are respectively arranged with nut III and nut IV, girth sheets I is made up of two sections of semicircle aluminium sheets, the two ends of each semicircle aluminium sheet are all welded with connecting plate, connecting plate is perpendicular to semicircle aluminium sheet setting, on connecting plate, be welded with floor, two connecting plates of homonymy are locked by bolt fastener, thereby two sections of semicircle aluminium sheets are linked together.The utility model can, to reaching the effect of preheating and interlayer temperature control before steel cylinder welding, can slow down the cooling velocity of postwelding, is conducive to the effusion of diffusible hydrogen in weld metal, avoids producing hydrogen induced cracking.
Description
Technical field
The utility model relates to a kind of frock, particularly a kind of steel cylinder preheating frock peculiar to vessel.
Background technology
Along with the development of shipbuilding technology, ship welding technique occupies important leading position in shipbuilding.Welding quality is to guarantee the key of shipbuilding quality, and it is directly connected to prestige and the competitiveness of shipyard in international market of shipyard.At present, in welding production process, welding quality flaw detection goes wrong, and can cause the increased frequency of doing over again, and extends shipbuilding period, increases shipbuilding cost.
The welding of slab in the past, all require in weld preheating, most of welders hold oxyacetylene torch mother metal is carried out to preheating, and in welding process, because weld seam is long, in the time that welder welds another location, the temperature of other former preheatings in position is cooling, has to re-start preheating, and it is too high or too low that inhomogeneous preheating easily produces local preheat temperature, do not reach pre-heat effect, cause welding process interlayer temperature restive.Due to the inhomogeneities of heating and cooling, and member generation itself is restrained or additional restraining, and after welding job finishes, always produces welding stress in member.The existence of welding stress in member, can reduce the actual bearer ability of weld region, produces plastic deformation, and when serious, the destruction that also can cause member, often cracks, and increases reclamation work amount.
Common mode of heating is all manually to go heating by flame gun, and its unfavorable factor has: be difficult to reach pre-heat effect 1..And the interlayer temperature of welding process welding bead is difficult to be controlled, and easily produces hydrogen induced cracking, thereby reduces welded constraint (restraint) degree, reduces the crack resistance of welding point; 2. workman must ceaselessly shift one's position, and workman's workload is larger.
Utility model content
In order to overcome the deficiencies in the prior art, it is a kind of easy to use that the utility model provides, simple to operate and location is fast, pre-heat effect is good steel cylinder preheating frock peculiar to vessel.
The utility model solves the technical scheme that its technical problem adopts:
A kind of steel cylinder preheating frock peculiar to vessel, comprise consistent girth sheets I and the girth sheets II of shape size being arranged side by side, between described girth sheets I and girth sheets II, there is spacing, in girth sheets I and girth sheets II, cross-under has many sticking plaster I and Duo Gen sticking plaster II, these many sticking plaster I being circumferentially uniformly distributed along girth sheets I, described sticking plaster I and sticking plaster II are all shape broad in the middle small in ends, the two ends of sticking plaster I are respectively through girth sheets I and girth sheets II, the stage casing of sticking plaster I is formed for separating the step section I of girth sheets I and girth sheets II, the two ends that described sticking plaster I is stretched out girth sheets I and girth sheets II are connected with respectively nut I and nut II, nut I and the cooperation of nut II are locked at sticking plaster I in girth sheets I and girth sheets II, the two ends of sticking plaster I are also separately installed with roller I and roller II, the two ends of sticking plaster I are respectively arranged with to limit the nut III of roller I position and in order to limit the nut IV of roller II position, described girth sheets I is made up of two sections of semicircle aluminium sheets, the two ends of each semicircle aluminium sheet are all welded with connecting plate, connecting plate is perpendicular to semicircle aluminium sheet setting, on connecting plate, be welded with the floor of being convenient to connecting plate and semicircle aluminium sheet maintenance plumbness, two connecting plates of homonymy are locked by bolt fastener, described sticking plaster I and sticking plaster II are connected with electromagnetic induction heater by wire.
In the utility model, these many sticking plaster II are circumferentially uniformly distributed along girth sheets I, and the two ends of sticking plaster II are respectively through girth sheets I and girth sheets II, and the stage casing of sticking plaster II is formed for separating the step section II of girth sheets I and girth sheets II.
In the utility model, between two connecting plates of homonymy, be provided with rock wool pad.
The beneficial effects of the utility model are: adopt the position of this frock restriction steel cylinder and use electromagnetic induction heater to heat steel cylinder, the effect that can control reaching preheating and interlayer temperature before steel cylinder welding, also can slow down the cooling velocity of postwelding, be conducive to the effusion of diffusible hydrogen in weld metal, avoid producing hydrogen induced cracking, also can reduce the degree of hardening of weld seam and heat affected area, improve the crack resistance of welding point simultaneously.In addition, also can reduce the welding stress of postwelding, reduce welded constraint (restraint) degree, can effectively avoid producing weld crack.Steel cylinder weld preheating evenly, can control well welding bead interlayer temperature in welding process, improves quality of weld joint.And this frock is easy to use, simple to operate and location is fast, pre-heat effect is good.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is that the utility model is arranged on the front view while work on steel cylinder;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the B-B profile of Fig. 1;
Fig. 4 is that the C of Fig. 1 is to partial view.
Detailed description of the invention
As shown in Fig. 1 ~ Fig. 4, a kind of steel cylinder preheating frock peculiar to vessel, comprise consistent girth sheets I 1 and the girth sheets II 2 of shape size being arranged side by side, between described girth sheets I 1 and girth sheets II 2, there is spacing, in girth sheets I 1 and girth sheets II 2, cross-under has many sticking plaster I 3 and Duo Gen sticking plaster II 4, these many sticking plaster I 3 are circumferentially uniformly distributed along girth sheets I 1, and described sticking plaster I 3 and sticking plaster II 4 are all shape broad in the middle small in ends, and the material of described sticking plaster I 3 and sticking plaster II 4 is epoxy resin.The two ends of sticking plaster I 3 are respectively through girth sheets I 1 and girth sheets II 2, the stage casing of sticking plaster I 3 is formed for separating the step section I 31 of girth sheets I 1 and girth sheets II 2, the two ends that described sticking plaster I 3 is stretched out girth sheets I 1 and girth sheets II 2 are connected with respectively nut I 5 and nut II 6, nut I 5 and nut II 6 coordinate sticking plaster I 3 are locked in girth sheets I 1 and girth sheets II 2, these many sticking plaster II 4 being circumferentially uniformly distributed along girth sheets I 1, the two ends of sticking plaster II 4 are respectively through girth sheets I 1 and girth sheets II 2, the stage casing of sticking plaster II 4 is formed for separating the step section II of girth sheets I 1 and girth sheets II 2.The two ends of sticking plaster I 3 are also separately installed with roller I 7 and roller II 8, the two ends of sticking plaster I 3 are respectively arranged with to limit the nut III 9 of roller I 7 positions and in order to limit the nut IV 10 of roller II 8 positions, in addition, a hole is preferably respectively bored at the two ends of sticking plaster I 3, in hole, insert a pin, to prevent that nut III 9 and nut IV 10 from coming off.Described girth sheets I 1 is made up of two sections of semicircle aluminium sheets, the two ends of each semicircle aluminium sheet are all welded with connecting plate 11, connecting plate 11 is perpendicular to semicircle aluminium sheet setting, on connecting plate 11, be welded with the floor 12 of being convenient to connecting plate 11 and semicircle aluminium sheet maintenance plumbness, two connecting plates 11 of homonymy are locked by bolt fastener 13, and described sticking plaster I 3 and sticking plaster II 4 are connected with electromagnetic induction heater by wire.The utility model can be to reaching the effect of preheating and interlayer temperature control before steel cylinder 15 welding.Can slow down the cooling velocity of postwelding, be conducive to the effusion of diffusible hydrogen in weld metal, avoid producing hydrogen induced cracking.Also can reduce the degree of hardening of weld seam and heat affected area, improve the crack resistance of welding point simultaneously.In addition, use this frock also can reduce the welding stress of steel cylinder, reduce welded constraint (restraint) degree, avoid producing weld crack.Steel cylinder 15 weld preheatings are even, the fine control welding bead of welding process interlayer temperature, improve quality of weld joint, and this device is easy to use, simple to operate and location is fast, and pre-heat effect is good.
Further, between two connecting plates 11 of homonymy, be provided with rock wool pad 14, so that separate the transmission of heat.
The using method of this product is: this frock is near the position that needs steel cylinder 15 needs welding, steel cylinder 15 rotates, roller I 7 in frock and roller II 8 are also rotated at the outer surface of steel cylinder 15, the wire of electromagnetic induction heater is entangled in II on sticking plaster I 3 and sticking plaster, use heating in medium frequency to reach the control of weld preheating and interlayer temperature, can make like this weld preheating evenly, welding process fine control welding bead interlayer temperature again, reach and control welding quality requirement.
The above, be preferred embodiments of the present utility model, but the utility model is not limited to above-described embodiment, as long as it reaches technique effect of the present utility model with any same or similar means, within all should falling into protection domain of the present utility model.
Claims (3)
1. a steel cylinder preheating frock peculiar to vessel, it is characterized in that: comprise consistent girth sheets I (1) and the girth sheets II (2) of shape size being arranged side by side, between described girth sheets I (1) and girth sheets II (2), there is spacing, the upper cross-under of girth sheets I (1) and girth sheets II (2) has many sticking plaster I (3) and many sticking plaster II (4), these many sticking plaster I (3) being circumferentially uniformly distributed along girth sheets I (1), described sticking plaster I (3) and sticking plaster II (4) are all shape broad in the middle small in ends, the two ends of sticking plaster I (3) are respectively through girth sheets I (1) and girth sheets II (2), the stage casing of sticking plaster I (3) is formed for separating the step section I (31) of girth sheets I (1) and girth sheets II (2), the two ends that described sticking plaster I (3) is stretched out girth sheets I (1) and girth sheets II (2) are connected with respectively nut I (5) and nut II (6), nut I (5) and nut II (6) cooperation are locked at sticking plaster I (3) in girth sheets I (1) and girth sheets II (2), the two ends of sticking plaster I (3) are also separately installed with roller I (7) and roller II (8), the two ends of sticking plaster I (3) are respectively arranged with to limit the nut III (9) of roller I (7) position and in order to limit the nut IV (10) of roller II (8) position, described girth sheets I (1) is made up of two sections of semicircle aluminium sheets, the two ends of each semicircle aluminium sheet are all welded with connecting plate (11), connecting plate (11) is perpendicular to semicircle aluminium sheet setting, on connecting plate (11), be welded with the floor (12) of being convenient to connecting plate (11) and semicircle aluminium sheet maintenance plumbness, two connecting plates (11) of homonymy are by bolt fastener (13) locking, described sticking plaster I (3) and sticking plaster II (4) are connected with electromagnetic induction heater by wire.
2. one according to claim 1 steel cylinder preheating peculiar to vessel frock, it is characterized in that: these many sticking plaster II (4) being circumferentially uniformly distributed along girth sheets I (1), the two ends of sticking plaster II (4) are respectively through girth sheets I (1) and girth sheets II (2), and the stage casing of sticking plaster II (4) is formed for separating the step section II of girth sheets I (1) and girth sheets II (2).
3. one according to claim 1 steel cylinder preheating peculiar to vessel frock, is characterized in that: between two connecting plates (11) of homonymy, be provided with rock wool pad (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301426.6U CN203918264U (en) | 2014-06-06 | 2014-06-06 | A kind of steel cylinder preheating frock peculiar to vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301426.6U CN203918264U (en) | 2014-06-06 | 2014-06-06 | A kind of steel cylinder preheating frock peculiar to vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203918264U true CN203918264U (en) | 2014-11-05 |
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ID=51814143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420301426.6U Expired - Fee Related CN203918264U (en) | 2014-06-06 | 2014-06-06 | A kind of steel cylinder preheating frock peculiar to vessel |
Country Status (1)
| Country | Link |
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| CN (1) | CN203918264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807511A (en) * | 2019-01-31 | 2019-05-28 | 重庆科技学院 | Reduce the in-service welding sleeve that hydrogen splits tendency |
| CN111421265A (en) * | 2020-03-25 | 2020-07-17 | 武汉理工大学 | Pre-welding preheating and post-welding heat treatment device for tank body |
-
2014
- 2014-06-06 CN CN201420301426.6U patent/CN203918264U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807511A (en) * | 2019-01-31 | 2019-05-28 | 重庆科技学院 | Reduce the in-service welding sleeve that hydrogen splits tendency |
| CN109807511B (en) * | 2019-01-31 | 2020-12-01 | 重庆科技学院 | Sleeve for in-service welding for reducing hydrogen cracking tendency |
| CN111421265A (en) * | 2020-03-25 | 2020-07-17 | 武汉理工大学 | Pre-welding preheating and post-welding heat treatment device for tank body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170606 |