CN203778934U - Outlet heat preservation device of argon arc welding machine - Google Patents
Outlet heat preservation device of argon arc welding machine Download PDFInfo
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- CN203778934U CN203778934U CN201420150863.2U CN201420150863U CN203778934U CN 203778934 U CN203778934 U CN 203778934U CN 201420150863 U CN201420150863 U CN 201420150863U CN 203778934 U CN203778934 U CN 203778934U
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- sleeve
- heat
- insulation layer
- steel pipe
- heat preservation
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Abstract
The utility model discloses an outlet heat preservation device of an argon arc welding machine. The device comprises a sleeve, wherein one end of the sleeve is fixedly connected with an external semi-sealing structure; a first heat preservation layer is mounted on the one-tenth inner circumference of the sleeve; the section of the first heat preservation layer is circular arc-shaped; when working, the first heat preservation layer is close to, but not in contact with, a welding seam of a steel tube; a second heat preservation layer is arranged on the remaining nine-tenth inner circumference of the sleeve; the thickness of the second heat preservation layer is gradually decreased in the direction of the other end of the sleeve. The thickness of the second heat preservation layer is gradually decreased in the direction of the other end of the sleeve, so that parts, except the welding seam, of the steel tube can be kept at a certain temperature within a period of time; the second heat preservation layer is matched with the first heat preservation layer, so that a plurality of gradually-decreased temperature areas are formed on the steel tube in the sleeve, the welding strength of the whole steel tube is kept in a stable temperature environment, reduction of the strength of the welding seam of the steel tube caused by temperature change is avoided, and the phenomenon of unsoldering of the welding seam of the steel tube is reduced.
Description
Technical field
The utility model relates to a kind of argon arc welding machine, specifically refers to a kind of argon arc welding machine outlet attemperator.
Background technology
Stainless steel welded pipe requires fusion penetration through welding; oxide-free is mingled with, and heat affected area is as far as possible little, and the argon arc welding of tungsten electrode noble gas protecting has good adaptability; welding quality is high, through welding performance is good, and its product is used widely in the industry such as chemical industry, nuclear industry and food.Speed of welding is not high is the weak point of argon arc welding, and for improving speed of welding, foreign study has been developed several different methods.Wherein by the development of single electrode list welding torch, adopt the welding method of the many welding torches of multi-electrode to apply aborning.The general argon arc welding that adopts three electrode welding torches, welded still pipe wall thickness S >=2mm, speed of welding improves 3-4 doubly than single welding torch, and welding quality is also improved.Argon arc welding and plasma weldering combination can be welded the steel pipe of larger wall thickness, in addition, and the hydrogen of 5-10% in argon gas, then adopt the high-frequency impulse source of welding current, also can improve speed of welding.First the joint of preparing welding is handled well, adopt the filling metal of doing with the welding wire of 904L material of the same race, one side welding one side is watered weld seam with cold water, welding temperature is controlled at below 80 ℃, speed of welding is more than 45～50 cm per minute, weld seam breadth depth ratio remains on 1.5: 1～between 2: 1, and weldment thickness≤12mm.Then at face of weld, carry out acid wash passivation processing.Its advantage is to weld at low temperatures, the conversion between molecule does not occur in 904L stainless steel inside, has avoided the phenomenon of fragility conversion, and the bulk deformation of weldment has been controlled in the generation of the defects such as intercrystalline corrosion while also having avoided welding, fire check.
During steel-pipe welding, for guaranteeing good welding effect, generally by soldering tip with treat that Coiling Welded Pipe is placed in semiclosed sealing device, when conveniently passing into protective gas, while also avoiding welding, Mars splashes everywhere.But after steel pipe partial welding, weld seam is directly exposed in air, difference due to air themperature and weld seam self temperature, can make weld seam by high temperature directly to low-temperature transformation, steel pipe seam is because the cataclysm of temperature during this time, can reduce the intensity of self, the stability in use of steel pipe is reduced, when serious, can directly cause steel pipe seam sealing-off.
Utility model content
The purpose of this utility model is to provide a kind of argon arc welding machine outlet attemperator, avoids the variation of steel pipe seam Yin Wendu and causes remitted its fury, reduces steel pipe seam sealing-off phenomenon and occurs.
The purpose of this utility model is achieved through the following technical solutions:
A kind of argon arc welding machine outlet attemperator, comprise sleeve, one end of described sleeve is fixedly connected with outside Semi-seal structure, on 1/10th inner peripherys of described sleeve, the first heat-insulation layer is installed, the cross section of described the first heat-insulation layer is circular arc, the first heat-insulation layer is close but do not contact at the weld seam of when work and steel pipe, on remaining 9/10ths inner peripherys of described sleeve, is provided with the second heat-insulation layer, and the thickness of described the second heat-insulation layer reduces gradually along sleeve other end direction.The utility model in use, welding complete steel pipe is sent out by the outlet of Semi-seal structure, directly enter into sleeve, the first heat-insulation layer is over against the commissure of steel pipe, because the temperature at steel pipe seam place self is higher, the effect of sleeve is to provide the environmental condition that can lower the temperature gradually for welding complete steel pipe seam place, avoids the intensity of the abrupt change impact welding of temperature; The first heat-insulation layer is circular arc, can be with steel pipe outside to agreeing with, but it is high because firm, to weld complete steel pipe self temperature, and weld there will be part projection, therefore by the certain distance of the first heat-insulation layer and interval, commissure, can either allow the temperature of steel pipe seam naturally decline, also can both avoid projection to cause certain damage to the first heat-insulation layer; On sleeve lining, on remaining 9/10ths inner peripherys, be provided with the second heat-insulation layer, and the thickness of the second heat-insulation layer reduces gradually along sleeve other end direction, can make the part of steel pipe except commissure within a period of time, keep certain temperature, and the second heat-insulation layer matches with the first heat-insulation layer, make on steel pipe, to occur a plurality of temperature provinces of successively decreasing gradually in sleeve, make steel pipe integral keep weld strength in a stable temperature environment, avoid the variation of steel pipe seam Yin Wendu and cause remitted its fury, reduce steel pipe seam sealing-off phenomenon and occur.
Described the first heat-insulation layer comprises and comprises successively from outside to inside nylon cloth cover, mineral wool and mineral wool, nylon cloth cover and sleeve lining adhesion.Steel pipe seam place is the highest part of temperature after steel-pipe welding, also be to keep the most important part of weld strength, in nylon cloth cover, distribute mineral wool and mineral wool are set, mineral wool has stronger high-temperature stability, can guarantee the stability of heat-insulation layer continuous firing, being used in conjunction with of mineral wool and mineral wool can keep its intensity by steel pipe seam under stable temperature environment, guarantees the serviceability of steel pipe.
Described the second heat-insulation layer comprises the cotton of hard bubbling, described in hard bubble and cotton when work, fit with steel pipe is outside.The heat at steel pipe seam place except and the first heat-insulation layer between gap in discharge, can also be by steel pipe heat radiation itself, the second heat-insulation layer directly closes with steel pipe consideration, and the cotton of hard bubbling can make the temperature of steel pipe body reduce gradually, avoids the rapid drawdown of steel pipe body local temperature.
Also comprise rubber ring, described rubber ring is arranged on sleeve and is connected on the inwall of one end with outside Semi-seal structure.Rubber ring can enter between sleeve the kick of scolder residual on steel pipe and generation is cleaned out at steel pipe, avoids scolder to enter in sleeve the cotton wearing and tearing of hard bubbling of the second heat-insulation layer, the service life of prolongation attemperator.
Described sleeve is connected with outside Semi-seal structure bolt.
The utility model compared with prior art, has following advantage and beneficial effect:
1, a kind of argon arc welding machine outlet of the utility model attemperator, the thickness of the second heat-insulation layer reduces gradually along sleeve other end direction, can make the part of steel pipe except commissure within a period of time, keep certain temperature, and the second heat-insulation layer matches with the first heat-insulation layer, make on steel pipe, to occur a plurality of temperature provinces of successively decreasing gradually in sleeve, make steel pipe integral keep weld strength in a stable temperature environment, avoid the variation of steel pipe seam Yin Wendu and cause remitted its fury, reduce steel pipe seam sealing-off phenomenon and occur;
2, a kind of argon arc welding machine outlet of the utility model attemperator, rubber ring can enter between sleeve the kick of scolder residual on steel pipe and generation is cleaned out at steel pipe, avoid scolder to enter in sleeve the cotton wearing and tearing of hard bubbling of the second heat-insulation layer, the service life of prolongation attemperator.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms the application's a part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is side view of the present utility model;
Fig. 3 is the structural representation of embodiment 1;
Mark and corresponding parts title in accompanying drawing:
1-sleeve, 2-the second heat-insulation layer, 3-nylon cloth cover, 4-mineral wool, 5-mineral wool, 6-rubber ring, 7-Semi-seal structure, 8-steel pipe, 9-weld seam.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, a kind of argon arc welding machine outlet of the utility model attemperator, comprise sleeve 1, one end of described sleeve 1 is fixedly connected with outside Semi-seal structure 7, on 1/10th inner peripherys of described sleeve 1, the first heat-insulation layer is installed, the cross section of described the first heat-insulation layer is circular arc, the first heat-insulation layer is close but do not contact at the weld seam 9 of when work and steel pipe 8, on remaining 9/10ths inner peripherys of described sleeve 1, be provided with the second heat-insulation layer 2, the thickness of described the second heat-insulation layer 2 reduces gradually along sleeve 1 other end direction; Described the first heat-insulation layer comprises nylon cloth cover 3, and nylon cloth cover 3 and sleeve 1 inwall adhesion, overlap 3 interior mineral wool 5 and the mineral wools 4 of being disposed with up and down at described nylon cloth; Described the second heat-insulation layer 2 comprises the cotton of hard bubbling, described in hard bubble and cotton when work, fit with steel pipe 8 is outside; Also comprise rubber ring 6, described rubber ring 6 is arranged on sleeve 1 and is connected on the inwall of one end with outside Semi-seal structure 7.
The utility model in use, welding complete steel pipe 8 is sent out by the outlet of Semi-seal structure 7, directly enter into sleeve 1, the first heat-insulation layer is over against weld seam 9 places of steel pipe 8, because the temperature at steel pipe 8 weld seam 9 places self is higher, the effect of sleeve 1 is to provide the environmental condition that can lower the temperature gradually for welding complete steel pipe 8 weld seam 9 places, avoids the intensity of the abrupt change impact welding of temperature, the first heat-insulation layer is circular arc, can be with steel pipe 8 outsides to agreeing with, but because the complete steel pipe of just welding 8 self temperature is high, and weld there will be part projection, therefore by the certain distance of the first heat-insulation layer and weld seam 9 intervals, place, can either allow the temperature of steel pipe 8 weld seams 9 naturally decline, also can both avoid projection to cause certain damage to the first heat-insulation layer, on sleeve 1 inwall, on remaining 9/10ths inner peripherys, be provided with the second heat-insulation layer 2, and the thickness of the second heat-insulation layer 2 reduces gradually along sleeve 1 other end direction, can make the part of steel pipe 8 except weld seam 9 is sentenced within a period of time, keep certain temperature, and the second heat-insulation layer 2 matches with the first heat-insulation layer, make to occur a plurality of temperature provinces of successively decreasing gradually on the interior steel pipe 8 of sleeve 1, make steel pipe 8 integral body keep weld strength in a stable temperature environment, avoid steel pipe 8 weld seams 9 to cause remitted its fury because of the variation of temperature, reducing steel pipe 8 weld seam 9 sealing-off phenomenons occurs.
Steel pipe 8 weld seam 9 places are the highest parts of temperature after steel pipe 8 welding, also be to keep the most important part of weld strength, at nylon cloth, overlap 3 interior distributions mineral wool 5 and mineral wool 4 are set, mineral wool 4 has stronger high-temperature stability, can guarantee the stability of heat-insulation layer continuous firing, mineral wool 5 can keep its intensity by steel pipe 8 weld seams 9 with being used in conjunction with of mineral wool 4 under stable temperature environment, guarantees the serviceability of steel pipe 8; The heat at steel pipe 8 weld seam 9 places except and the first heat-insulation layer between gap in discharge, can also itself dispel the heat by steel pipe 8, the second heat-insulation layer 2 is directly fitted with steel pipe 8 bodys, and the cotton of hard bubbling can make the temperature of steel pipe 8 bodys reduce gradually, avoids steel pipe 8 body local temperature rapid drawdowns.
Wherein, rubber ring 6 can enter between sleeve 1 kick of scolder residual on steel pipe 8 and generation is cleaned out at steel pipe 8, avoids scolder to enter into sleeve 1 interior by the cotton wearing and tearing of hard bubbling of the second heat-insulation layer 2, extends the service life of attemperator.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an argon arc welding machine exports attemperator, comprise sleeve (1), one end of described sleeve (1) is fixedly connected with outside Semi-seal structure (7), it is characterized in that: on 1/10th inner peripherys of described sleeve (1), the first heat-insulation layer is installed, the cross section of described the first heat-insulation layer is circular arc, the weld seam (9) of the first heat-insulation layer in when work and steel pipe (8) is close but do not contact, on remaining 9/10ths inner peripherys of described sleeve (1), be provided with the second heat-insulation layer (2), the thickness of described the second heat-insulation layer (2) reduces gradually along sleeve (1) other end direction.
2. a kind of argon arc welding machine according to claim 1 exports attemperator, it is characterized in that: described the first heat-insulation layer comprises and comprises successively from outside to inside nylon cloth cover (3), mineral wool (4) and mineral wool (5), nylon cloth cover (3) and sleeve (1) inwall adhesion.
3. a kind of argon arc welding machine outlet attemperator according to claim 1, is characterized in that: described the second heat-insulation layer (2) comprises the cotton of hard bubbling, described in hard bubble and cottonly when work, fit with steel pipe (8) is outside.
4. a kind of argon arc welding machine outlet attemperator according to claim 1, is characterized in that: also comprise rubber ring (6), described rubber ring (6) is arranged on sleeve (1) and is connected on the inwall of one end with outside Semi-seal structure (7).
5. according to a kind of argon arc welding machine outlet attemperator described in claim 1 ~ 4 any one, it is characterized in that: described sleeve (1) is connected with outside Semi-seal structure (7) bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150863.2U CN203778934U (en) | 2014-03-31 | 2014-03-31 | Outlet heat preservation device of argon arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150863.2U CN203778934U (en) | 2014-03-31 | 2014-03-31 | Outlet heat preservation device of argon arc welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203778934U true CN203778934U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420150863.2U Withdrawn - After Issue CN203778934U (en) | 2014-03-31 | 2014-03-31 | Outlet heat preservation device of argon arc welding machine |
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| CN (1) | CN203778934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831508A (en) * | 2014-03-31 | 2014-06-04 | 成都振中电气有限公司 | Outlet heat preservation mechanism of argon arc welding machine |
-
2014
- 2014-03-31 CN CN201420150863.2U patent/CN203778934U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831508A (en) * | 2014-03-31 | 2014-06-04 | 成都振中电气有限公司 | Outlet heat preservation mechanism of argon arc welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20151014 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |