CN106975870B - A kind of weld heating device - Google Patents
A kind of weld heating device Download PDFInfo
- Publication number
- CN106975870B CN106975870B CN201710381782.1A CN201710381782A CN106975870B CN 106975870 B CN106975870 B CN 106975870B CN 201710381782 A CN201710381782 A CN 201710381782A CN 106975870 B CN106975870 B CN 106975870B
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- rifle
- sleeve
- baking
- nozzle
- connection bar
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
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- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of weld heating devices, including drying rifle and drying rifle locating rack, rifle is dried to include connection bar, dry nozzle, the first connecting tube and the second connecting tube, it is connected to the inner hollow of bar, dry the front end that connection bar is arranged in nozzle, one end of first connecting tube is connected with connection bar, the other end is external for conveying the oxygen channel of oxygen, one end of second connecting tube is connected with connection bar, the other end is external for conveying the high energy feed channel of high energy gas, oxygen is ignited after being connected to bar internal mix by drying nozzle with high energy gas, dries nozzle flame ejiction opening face to-be-welded pieces；It dries rifle locating rack to be arranged on welding tractor and move synchronously with welding tractor, connection bar setting is connected to bar and is located in front of welding tractor on drying rifle locating rack.Weld seam heating device in the present invention is mounted on welding tractor, and is moved synchronously with welding tractor, synchronous to carry out weld heating while carrying out weld job, realizes the consistency that weld seam is heated and welded automatically.
Description
Technical field
The invention belongs to shipbuilding equipment technical fields, more particularly to a kind of match with automatic welding carriage weld job to come
Realize the weld heating device heated automatically to weld seam.
Background technique
During domestic and international shipbuilding enterprise carries out shipbuilding, carrying out, thick plates, weldment carbon equivalent are excessively high
Or environment temperature it is too low when welded, joint hardened structure easily generated, reduce joint mechanical property, or even generate welding split
Line, to influence welding quality.
It in order to guarantee welding quality, for the weldment under above situation, should be preheated before weldering, by area to be welded and week
Be heated to certain temperature in a certain range of side, reach following four purpose: molten bath setting time when 1. can extend welding is conducive to
The evolution of diffusible hydrogen, avoids hydrogen induced cracking in weld seam.2. the cooling velocity of welding point can be reduced, hardened structure is avoided the occurrence of,
Improve welding point crack resistance.3. temperature gradient can be reduced, welding stress is reduced.4. welded constraint (restraint) degree can be reduced.
Shipbuilding enterprise generally uses electromagnetic heating apparatus, crawler type electric heater when being preheated both at home and abroad at present
Or Manual flame preheating, the characteristics of every kind of method has its own and advantage and disadvantage.Electromagnetic heating and crawler belt heating can uniformly add
Heat, but consuming time is long for the laying and recycling of heating tape, and heating needs the process of certain time, influences production efficiency；Add by hand
, Bian Jiare side welding synchronous with welding may be implemented in heat, but Manual flame heating needs to be operated by special messenger, the work doubled
Industry construction personnel greatly improves construction cost, meanwhile, manual operation heating is uneven, influences welding quality.Therefore, it uses
Above-mentioned heating method carry out heating limitation it is higher, be especially not suitable for carry out high-volume fillet weld preheating construction operation.
It can be seen that the existing technology needs further improvement and improves.
Summary of the invention
The present invention devises a kind of weld seam heating device, it is small to be mounted on welding to solve the deficiencies of above-mentioned heating means
Che Shang, and moved synchronously with welding tractor, it is synchronous to carry out weld heating while carrying out weld job, realize that weld seam is automatic
The consistency of heating and welding.
The technical scheme adopted by the invention is as follows:
A kind of weld heating device, including dry rifle and dry rifle locating rack, it dries rifle and includes connection bar, dries nozzle, the first connecting tube
With the second connecting tube, be connected to the inner hollow of bar, dry the front end that connection bar is arranged in nozzle, one end of the first connecting tube be connected to bar
Be connected, the other end it is external for conveying the oxygen channel of oxygen, one end of the second connecting tube be connected to bar be connected, the other end
The external high energy feed channel for being used to convey high energy gas, oxygen and high energy gas are ignited after being connected to bar internal mix by drying nozzle, are dried
Nozzle flame ejiction opening face to-be-welded pieces；It dries rifle locating rack to be arranged on welding tractor and move synchronously with welding tractor, be connected to
Bar setting is connected to bar and is located in front of welding tractor on drying rifle locating rack.
Angle before the connection bar and welding tractor between line direction is 70 °~80 °.
The baking rifle has two sets, and two sets of baking rifles are one in front and one in back arranged on the traffic direction of welding tractor, to-be-welded pieces packet
Tire plate and vertical bone to be welded are included, the angle between the axis and tire plate of each connection bar for drying rifle is 40 °~50 °；Two sets of bakings
Rifle separate operaton or simultaneously operation.
When a set of bakings rifle operation is used only, the baking distance of the nozzle away from tire plate and vertical bone intersection for drying rifle for 50~
70mm, the flame core for drying flame caused by nozzle are located at the intersection of tire plate and vertical bone.
When the operation simultaneously of two sets of baking rifles, wherein a set of baking nozzle for drying rifle heats vertical bone, and the distance of the baking nozzle away from vertical bone
For 50~70mm, the flame core of flame caused by the baking nozzle is 20~40mm away from the distance of tire plate；The baking nozzle of other set baking rifle
Tire plate is heated, and the distance of the baking nozzle away from tire plate is 50~70mm, the flame core of flame caused by the baking nozzle is away from the distance of vertical bone
For 20~40mm.
Distance of the baking nozzle of a set of baking rifle being located behind apart from welding tractor edge is not less than 400mm；Two sets of institutes
It states and dries the distance between two baking nozzles of rifle for 50~100mm.
It is additionally provided with the bracket for positioning the first, second connecting tube tail portion on the welding tractor, is set on the bracket
It is equipped with the first tee pipe fitting and the second tee pipe fitting, the first connecting tube of two sets of baking rifles is connected with the first tee pipe fitting respectively, the
One tee pipe fitting is connected with oxygen channel, and the second connecting tube of two sets of baking rifles is connected with the second tee pipe fitting respectively, the second threeway
Pipe fitting is connected with high energy feed channel.
One end of the connection bar is provided with the first lead screw for being connected with the first connecting tube and is used to connect with second
The second connected lead screw of adapter tube, the first lead screw and the second lead screw are hollow structure, and the inside of the first lead screw be connected to bar
Inside is connected, and the inside of the second lead screw is connected with the inside of connection bar.
The baking rifle locating rack includes connected locating rod and positioning plate, and positioning plate and welding tractor are connected, and connection bar is set
It sets on the securing lever, and it is adjustable to be connected to the installation site of bar on the securing lever.
The baking rifle further includes connection bar position adjusting mechanism, and connection bar position adjusting mechanism includes first sleeve, second
Sleeve and 3rd sleeve；First sleeve is nested in the outside of connection bar, and set seated position of the first sleeve on connection bar is adjustable；
The bottom end of first sleeve is fixed with positioning column, and the axis of positioning column and the axis of first sleeve are mutually perpendicular to, and second sleeve is nested with
In the outside of positioning column, and set seated position of the second sleeve on positioning column is adjustable；Second sleeve and 3rd sleeve are connected, and the
The axis of two sleeves and the axis of 3rd sleeve are mutually perpendicular to, and 3rd sleeve is nested in the outside of locating rod, and 3rd sleeve exists
Set seated position in locating rod is adjustable.
By adopting the above-described technical solution, obtained by the present invention have the beneficial effect that
1, the weld heating device in the present invention is mounted on welding tractor, while carrying out weld job, same to stepping
The automatic heating of row, and heating temperature is uniform, realizes the consistency that weld seam is heated and welded automatically, improves welding matter
Amount.
2, the weld heating device in the present invention reduces by the weld job of welding tractor to realize automatic heating
Professional heating personnel are particularly suitable for carrying out the preheating construction operation of high-volume fillet weld, improve welding efficiency, save and build
Cause this.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 shows use position view when two sets in the present invention are dried rifle operation simultaneously.
Position view is used when Fig. 3 shows a set of baking rifle separate operaton in the present invention.
Fig. 4 is main view of the invention.
Fig. 5 is side view of the invention.
Fig. 6 is top view of the invention.
Wherein,
1/2, it dries rifle 12/22, dry nozzle 13/23, the second connecting tube 14/24, the first connecting tube 3, bracket 31, first
Tee pipe fitting 32, the second tee pipe fitting 4, welding tractor 41, welding gun 42, tire plate 43, vertical bone 51, locating rod 52, positioning
Plate 53, positioning screw hole 6, connection bar 61, internal cavities 62, octagonal nut 63, the second lead screw 64/66, lead screw cavity
65, the first lead screw 67, outer silk 7, first sleeve 71, the first fracture 72, first boss 73, second boss 74, the first butterfly
Adjusting screw 75, positioning column 8, second sleeve 81, the second fracture 82, third boss 83, the 4th boss 84, the second butterfly spiral shell
Silk 9,3rd sleeve 91, third fracture 92, the 5th boss 93, the 6th boss 94, third butterfly screw
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawing, but the present invention is not limited to
These embodiments.
As shown in Figures 1 to 6, a kind of weld heating device, including rifle locating rack and two sets of baking rifles are dried, respectively dry rifle 1
With baking rifle 2, two sets of baking rifles are one in front and one in back arranged on the traffic direction of welding tractor 4.Dry rifle 1 include connection bar 6, dry nozzle 12,
First connecting tube 14 and the second connecting tube 13 dry rifle 2 and include connection bar 6, dry nozzle 22, the first connecting tube 24 and the second connecting tube
23.It is provided with internal cavities 61 in connection bar 6, that is, is connected to the inner hollow of bar 6.It dries nozzle 12,22 and is separately positioned on connection bar 6
Front end.The baking nozzle 12,22 is universal baking nozzle, is standard component, and different-energy may be selected in the temperature baked as needed
Nozzle is dried, in the case where guaranteeing stoving temperature, the preferential baking nozzle for selecting model good, model is better, is less susceptible to generate tempering.
To-be-welded pieces include tire plate 42 and vertical bone 43 to be welded, between the axis and tire plate 42 of each connection bar 6 for drying rifle
Angle be random angle angle value between 40 °, 50 ° or 40 ° to 50 °.Preferably, the axis and tire of the connection bar 6 of rifle are respectively dried
Angle between plate 42 is 45 °.Distance of the baking nozzle 22 of a set of baking rifle 2 being located behind apart from 4 edge of welding tractor
Not less than 400mm, prevent high temperature from damaging welding tractor, and preferably 400~500mm.Two sets of two baking nozzles 12 for drying rifle,
The distance between 22 be 50~100mm.
One end of first connecting tube 14 for drying rifle 1 is connected with connection bar 6, the other end is external for conveying oxygen
Oxygen channel, one end of the second connecting tube 13 is connected with connection bar 6, the other end is external for conveying the high energy tracheae of high energy gas
Road, oxygen and high energy gas are ignited by drying the ejection of nozzle 12 after being connected to and being sufficiently mixed in 6 internal cavities of bar, dry the flame of nozzle 12
Ejiction opening face to-be-welded pieces.Similarly, it is described dry rifle 2 the first connecting tube 24 one end be connected to bar 6 be connected, the other end
The external oxygen channel for being used to convey oxygen, one end of the second connecting tube 23 is connected with connection bar 6, the other end is external for defeated
It send the high energy feed channel of high energy gas, oxygen and high energy gas after being connected to and being sufficiently mixed in 6 internal cavities of bar, passes through and dry nozzle 22 and spray
It ignites, dries the flame ejiction opening face to-be-welded pieces of nozzle 22.
Specifically, one end of the connection bar 6 is provided with first for being connected with the first connecting tube 14 or 24
Thick stick 65 and the second lead screw 63 for being connected with the second connecting tube 13 or 23, the first lead screw 65 are internally provided with lead screw cavity
66, the second lead screw 63 is internally provided with lead screw cavity 64, i.e. the first lead screw 63 and the second lead screw 65 are hollow structure, and the
The inside of one lead screw 63 is connected with the internal cavities 61 of connection bar 6, the inside of the second lead screw 65 and the internal cavities for being connected to bar 6
61 are connected.One end that connection bar 6 is used to be arranged the first, second lead screw is provided with octagon nut 62, and in order to avoid oxygen, height
The leakage of energy gas, one end that octagon nut 62 is arranged in connection bar 6 strictly seal.Connection bar 6 is used to install the one end for drying nozzle 12,22
It is provided with outer silk 67.
It is provided with the bracket 3 for positioning the first, second connecting tube tail portion on the welding tractor 4, is set on the bracket 3
It is equipped with the first tee pipe fitting 31 and the second tee pipe fitting 32.The tail portion of first connecting tube 14,24 refers to the first connecting tube 14,24
The one end being connected with oxygen channel, the tail portion of the second connecting tube 13,23 refer to the second connecting tube 13,23 and high energy feed channel
Connected one end.First, second connecting tube is hose construction.Two sets baking rifle the first connecting tube 14,24 respectively with
First tee pipe fitting 31 is connected, and controlled valve is provided between the first connecting tube 14,24 and the first tee pipe fitting 31, and the one or three
Way pipe fitting 31 is connected with oxygen channel.Second connecting tube 13,23 of two sets of baking rifles is connected with the second tee pipe fitting 32 respectively, and the
Controlled valve, the second tee pipe fitting 32 and high energy feed channel are also equipped between two connecting tubes 13,23 and the second tee pipe fitting 32
It is connected.
The baking rifle locating rack is arranged on welding tractor 4 and moves synchronously with welding tractor 4, and the connection setting of bar 6 is being dried
On rifle locating rack, and it is connected to bar 6 and is located at 4 front of welding tractor.Welding gun 41 is provided on welding tractor 4, welding gun 41 is for be welded
The weld seam of fitting.
The baking rifle locating rack includes connected locating rod 51 and positioning plate 52, offers multiple positioning spiral shells on positioning plate 52
Hole 53, positioning plate 52 are arranged on welding tractor 4 by positioning bolt.It is connected to bar 6 to be arranged in locating rod 51, and is connected to bar 6
Installation site in locating rod 51 is adjustable.
The baking rifle further includes connection bar position adjusting mechanism, and connection bar position adjusting mechanism includes first sleeve 7, second
Sleeve 8 and 3rd sleeve 9.First sleeve 7 is nested in the outside of connection bar 6, and set set of the first sleeve 7 on connection bar 7
It sets adjustable.The bottom end of first sleeve 7 is fixed with positioning column 75, and the axis of positioning column 75 and the axis of first sleeve 7 are mutually perpendicular to,
Second sleeve 8 is nested in the outside of positioning column 75, and set seated position of the second sleeve 8 on positioning column 75 is adjustable；Second sleeve 8
It is connected with 3rd sleeve 9, and the axis of second sleeve 8 and the axis of 3rd sleeve 9 are mutually perpendicular to, 3rd sleeve 9 is nested with fixed
The outside of position bar 51, and set seated position of the 3rd sleeve 9 in locating rod 5 is adjustable.
Specifically, its axial direction of a lateral edge of first sleeve 7 is provided with the first fracture 71, and distinguishes at the first fracture 71
It is provided with the first boss 72 and second boss 73 being connected with first sleeve 7, first boss 72 and second boss 73 pass through first
Butterfly screw 74 is connected, and unscrews the first butterfly screw 74, and first sleeve 7 is moved axially along connection bar 6, is moved to target position
Afterwards, the positioning that the first butterfly screw 74 can be realized first sleeve 7 be connected between bar 6 is tightened.One lateral edge of second sleeve 8 its
It axially is provided with the second fracture 81, and is respectively arranged with the third boss 82 being connected with second sleeve 8 and the at the second fracture 81
Four boss 83, third boss 82 and the 4th boss 83 are connected by the second butterfly screw 84, and the second butterfly screw 84 is unscrewed, by the
Two sleeves 8 are moved axially along positioning column 75, and after being moved to target position, tightening the second butterfly screw 84 can be realized second sleeve
Positioning between 8 and positioning column 75.Its axial direction of one lateral edge of 3rd sleeve 9 is provided with third fracture 91, and at third fracture 91
It is respectively arranged with the 5th boss 92 and the 6th boss 93 being connected with 3rd sleeve 9, the 5th boss 92 and the 6th boss 93 pass through
Third butterfly screw 94 is connected, and unscrews third butterfly screw 94,3rd sleeve 9 is moved axially along locating rod 51, is moved to mesh
After cursor position, tightening third butterfly screw 94 can be realized positioning between 3rd sleeve 9 and locating rod 51.
Angle before the connection bar 6 and welding tractor 4 between line direction is any between 70 °, 80 ° or 70 ° to 80 °
Angle value.Pass through the angle between line direction before the adjustable connection bar 6 of above-mentioned connection bar position adjusting mechanism and welding tractor 4.
Preferably, the angle before the connection bar 6 and welding tractor 4 between line direction is 75 °.
Two sets of baking rifles 1,2 can separate operaton, can also operation simultaneously:
As shown in figure 3, a set of baking rifle operation is used only: the baking nozzle for drying rifle is away from tire when to-be-welded pieces temperature is higher
The distance of 43 intersection of plate 42 and vertical bone is 50~70mm, and the flame core for drying flame caused by nozzle is located at tire plate 42 and vertical bone 43
Intersection.
As shown in Fig. 2, two sets are dried rifle operation simultaneously: wherein a set of baking nozzle 12 for drying rifle 1 when to-be-welded pieces temperature is lower
Vertical bone 43 is heated, and distance of the baking nozzle 12 away from vertical bone 43 is 50~70mm, the flame core of flame caused by the baking nozzle 12 is away from tire
The distance of plate is 20~40mm；The baking nozzle 22 that other set dries rifle 2 heats tire plate 42, and the distance of the baking nozzle 22 away from tire plate 42 is
50~70mm, the flame core of flame caused by the baking nozzle 22 are 20~40mm away from the distance of vertical bone 43.
In use, starting welding gun 41 starts welded seam, while starting welding tractor 4 and welding gun 41 and above-mentioned welding is driven to add
The walking of thermal speed stabilizing achievees the effect that weld in preheating.
It should be noted that the weld heating device in the present invention not only can realize that side is pre- by welding tractor 4
The effect of hot side welding can also drive the weld heating device in the present invention to realize automatic by other automatic welding devices
The purpose of heating.
The part that do not address in the present invention uses or uses for reference prior art and can be realized.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
Specific embodiment described herein is only to spiritual example explanation of the invention.Belonging to the present invention
Those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitutes, and however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of weld heating device, which is characterized in that including drying rifle and drying rifle locating rack, dry rifle and include connection bar, dry nozzle, the
One connecting tube and the second connecting tube are connected to the inner hollow of bar, dry the front end that connection bar is arranged in nozzle, one end of the first connecting tube
It is connected with connection bar, the external oxygen channel for being used to convey oxygen of the other end, one end of the second connecting tube is connected with connection bar
Logical, the external high energy feed channel for being used to convey high energy gas of the other end, oxygen pass through baking with high energy gas after being connected to bar internal mix
Nozzle ignites, and dries nozzle flame ejiction opening face to-be-welded pieces；Rifle locating rack is dried to be arranged on welding tractor and synchronize with welding tractor
Movement, connection bar setting are connected to bar and are located in front of welding tractor on drying rifle locating rack, and the baking rifle has two sets, two sets of bakings
Rifle is one in front and one in back arranged on the traffic direction of welding tractor, and to-be-welded pieces include tire plate and vertical bone to be welded, respectively dries rifle
The angle being connected between the axis and tire plate of bar is 40 °~50 °；Two sets of baking rifle separate operatons or operation simultaneously；When being used only
When a set of baking rifle operation, the baking distance of the nozzle away from tire plate and vertical bone intersection for drying rifle is 50~70mm, is dried caused by nozzle
The flame core of flame is located at the intersection of tire plate and vertical bone；When the operation simultaneously of two sets of baking rifles, wherein a set of baking nozzle heating for drying rifle
Vertical bone, and the distance of the baking nozzle away from vertical bone is 50~70mm, the flame core of flame caused by the baking nozzle is 20 away from the distance of tire plate
~40mm；The baking nozzle that other set dries rifle heats tire plate, and the distance of the baking nozzle away from tire plate is 50~70mm, produced by the baking nozzle
Flame flame core away from the distance of vertical bone be 20~40mm.
2. a kind of weld heating device according to claim 1, which is characterized in that the connection bar and welding tractor move ahead
Angle between direction is 70 °~80 °.
3. a kind of weld heating device according to claim 1, which is characterized in that a set of baking rifle being located behind
It dries distance of the nozzle apart from welding tractor edge and is not less than 400mm；Two sets of described the distance between two bakings nozzles for drying rifles are 50~
100mm。
4. a kind of weld heating device according to claim 1, which is characterized in that be additionally provided with use on the welding tractor
It is provided with the first tee pipe fitting and the second tee pipe fitting in the bracket for positioning the first, second connecting tube tail portion, on the bracket, two
The first connecting tube that set dries rifle is connected with the first tee pipe fitting respectively, and the first tee pipe fitting is connected with oxygen channel, two sets of baking rifles
The second connecting tube be connected respectively with the second tee pipe fitting, the second tee pipe fitting is connected with high energy feed channel.
5. a kind of weld heating device according to claim 1, which is characterized in that one end setting of the connection bar is useful
In the first lead screw being connected with the first connecting tube and the second lead screw for being connected with the second connecting tube, the first lead screw and second
Lead screw is hollow structure, and the inside of the first lead screw is connected with the inside of connection bar, the inside of the second lead screw be connected to bar
Inside be connected.
6. a kind of weld heating device according to claim 1, which is characterized in that the baking rifle locating rack includes connected
Locating rod and positioning plate, positioning plate and welding tractor are connected, and connection bar setting on the securing lever, and is connected to bar on the securing lever
Installation site is adjustable.
7. a kind of weld heating device according to claim 6, which is characterized in that the baking rifle further includes connection bar position
Regulating mechanism, connection bar position adjusting mechanism includes first sleeve, second sleeve and 3rd sleeve；First sleeve, which is nested with, to be connected to
The outside of bar, and set seated position of the first sleeve on connection bar is adjustable；The bottom end of first sleeve is fixed with positioning column, positioning column
Axis and the axis of first sleeve be mutually perpendicular to, second sleeve is nested in the outside of positioning column, and second sleeve is in positioning column
On set seated position it is adjustable；Second sleeve and 3rd sleeve are connected, and the axis of second sleeve and the axis of 3rd sleeve are mutual
Vertically, 3rd sleeve is nested in the outside of locating rod, and the set seated position of 3rd sleeve on the securing lever is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381782.1A CN106975870B (en) | 2017-05-26 | 2017-05-26 | A kind of weld heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381782.1A CN106975870B (en) | 2017-05-26 | 2017-05-26 | A kind of weld heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106975870A CN106975870A (en) | 2017-07-25 |
| CN106975870B true CN106975870B (en) | 2019-03-15 |
Family
ID=59344248
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| CN201710381782.1A Active CN106975870B (en) | 2017-05-26 | 2017-05-26 | A kind of weld heating device |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU535542B2 (en) * | 1979-08-29 | 1984-03-29 | Nicholas Thomas Edward Dillon | Welding and cutting handpiece |
| CN86208048U (en) * | 1986-10-12 | 1988-02-10 | 国营西南仪器厂 | Flame cover able to carry out air-acetylene flame soldering |
| CN2030693U (en) * | 1987-04-30 | 1989-01-11 | 重庆焊割工具厂 | Isobaric cutting torch for multiple combustion gases |
| CN202622221U (en) * | 2012-06-19 | 2012-12-26 | 无锡市优耐特石化装备有限公司 | Welding preheating device |
| CN103418899B (en) * | 2013-07-22 | 2015-09-23 | 南京德邦金属装备工程股份有限公司 | A kind of plasma welding machine for pipe interior bottoming welding |
| CN205085564U (en) * | 2015-11-03 | 2016-03-16 | 上海交通大学 | Integral type developments induction welding preheating device |
| CN205414653U (en) * | 2015-11-04 | 2016-08-03 | 河南科隆石化装备有限公司 | Barrel circumferential weld inseam flame preheating device |
| CN205702952U (en) * | 2016-06-12 | 2016-11-23 | 扬州市通宇压力容器有限公司 | Flame preheating device before the weldering of a kind of thick-walled pressure vessel cylinder |
| CN106425148B (en) * | 2016-11-22 | 2018-01-26 | 佳木斯大学 | It is a kind of to control welding stress and the device of deformation with weldering heating and Quench combination |
| CN206717317U (en) * | 2017-05-26 | 2017-12-08 | 青岛北海船舶重工有限责任公司 | A kind of weld heating device |
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2017
- 2017-05-26 CN CN201710381782.1A patent/CN106975870B/en active Active
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Address after: 266520 No. 369 Lijiang East Road, Qingdao economic and Technological Development Zone, Shandong Patentee after: China Shipbuilding Group Qingdao Beihai Shipbuilding Co.,Ltd. Address before: 266520 No. 369 Lijiang East Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: QINGDAO BEIHAI SHIPBUILDING HEAVY INDUSTRY Co.,Ltd. |
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