CN105414783B - A kind of toroidal membrane erection welding process with communicating tube structure - Google Patents
A kind of toroidal membrane erection welding process with communicating tube structure Download PDFInfo
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- CN105414783B CN105414783B CN201510875307.0A CN201510875307A CN105414783B CN 105414783 B CN105414783 B CN 105414783B CN 201510875307 A CN201510875307 A CN 201510875307A CN 105414783 B CN105414783 B CN 105414783B
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- China
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- chassis
- toroidal membrane
- welding
- communicating pipe
- lacing wire
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Classifications
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
Abstract
The present invention relates to the toroidal membrane chassis assembly technique with communicating pipe.Leveling is fixed on positioner (rollover stand) platform after the assembling of toroidal membrane chassis, and pretightning force and reversible deformation are applied using L-type lacing wire and clapboard.Welding equipment supports lacing wire between adjacent spring fuel tank.Toroidal membrane chassis welding position is adjusted using positioner (rollover stand) platform, all-position welding is carried out, weld inspection is carried out after the completion of welding, and removes lacing wire and rigidly fixes, measurement size and cleaning.The present invention utilizes to rigidly fix solves the problems, such as the critical process with communicating pipe toroidal membrane chassis size Control with reference to reversible deformation and application pretightning force.The present invention has the advantages that cost of manufacture is cheap, technological process is rationally succinct, being capable of product size performance, the cost performance of raising product.
Description
Technical field
The present invention relates to a kind of toroidal membrane erection welding process with communicating tube structure.
Background technology
The erection welding technique of conventional hydrogenerator toroidal membrane is in free shape after toroidal membrane is assembled on chassis
Welded under state.Due to the welding shrinkage stress of communicating pipe, though the toroidal membrane process letter of welding equipment in this way
It is single, it is with short production cycle, but in dimensional measurement after toroidal membrane welding terminates, it is possible that chassis plane degree size is poor
Situation, influences the perpendicularity of toroidal membrane, and with chassis thickness is thinning, diameter becomes big, chassis unevenness size is also by larger shadow
Ring.
The content of the invention
Communicating tube structure is carried it is an object of the invention to provide a kind of one kind for ensureing product size after toroidal membrane welding
Toroidal membrane erection welding process.The technical scheme is that：
1) chassis blanking is processed：Chassis material uses carbon structural steel plate Q235 or low-alloy structural steel Q345, under
Flatten, process after material, make chassis plane degree no more than 0.05mm；
2) toroidal membrane, branch iron and annulus are manufactured using forging, casting method according to drawing requirement；
3) toroidal membrane, branch iron and annulus are assembled according to drawing requirement, and welds Zhi Tieyu toroidal membrane weld seams；
4) according to drawing requirement, assembling toroidal membrane, communicating pipe and chassis, using bolt tight, make toroidal membrane and bottom
Dish gap is not more than 0.5mm；
5) rigidly fix：Toroidal membrane is positioned on displacement machine platform, and leveling；In adjacent spring fuel tank upper surface dress
Weldering support lacing wire, fixes L-type lacing wire, and compress chassis using clapboard around chassis；
6) deflection is adjusted：Using laser tracker, measurement chassis uses the deflection after clapboard compression, adjustment wedge shape
The thrust of plate, it is 1.1mm~1.3mm to make chassis deflection；
7) communicating pipe is welded：Displacement machine platform is rotated, communicating pipe is in the position for being easy to welding, preheating temperature is not less than
80 DEG C, welding method is gas metal-arc welding, and the argon gas of gaseous mixture volume proportion 78% adds 22% carbon dioxide, welding sequence
For elder generation along single direction weld every communicating pipe one side weld, then jump welding offside communicating pipe weld seam；
8) weld inspection：Compressed air is filled with the oil-filled hole site of toroidal membrane, in communicating pipe circumferential weld smearing soap
Water, is repaired to air-leak section；
9) dismounting rigid fixation means and lacing wire, measure toroidal membrane chassis size and clear up.
Technique effect：
Toroidal membrane with communicating pipe is typically made up of toroidal membrane, communicating pipe, chassis, Zhi Tie, annulus etc..To ensure
Product mechanical property, toroidal membrane is usually forged steel processing and manufacturing, is generally the manufacture of 20# seamless steel pipes communicating pipe, and chassis is general
It is to be made using carbon structural steel plate Q235 or low-alloy structural steel Q345.Due to the welding performance reason of forged steel, welding
More than 80 DEG C must be preheated to during communicating pipe weld seam, the shrinkage stress that welding applies while temperature change causes in toroidal membrane
Stress produces larger change, causes toroidal membrane chassis plane degree size to be affected.
The reason for present invention has analysed in depth toroidal membrane chassis plane degree size and toroidal membrane perpendicularity change in size
And deflection, research finds that toroidal membrane perpendicularity size is related to chassis plane degree, chassis plane degree change in size it is main
Reason is the stress that temperature change is produced after welding stress and weld preheating cooling in communicating pipe welding process.The present invention is used
Lacing wire couples adjacent spring fuel tank, and toroidal membrane chassis is rigidly fixed, and applies certain pretightning force and reversible deformation
Amount, increases product integral rigidity, solves chassis plane degree variation issue.
Toroidal membrane chassis in welding process, due to welding stress and preheating caused by deformation tendency be mainly outer rim to
Upper to tilt, toroidal membrane is tilted to the center of circle, if simple outer rim is rigidly fixed, although deflection is smaller in welding process,
But after dismounting is rigidly fixed, with the release of toroidal membrane chassis residual stress, toroidal membrane chassis size is difficult to obtain
It is effectively ensured.
In view of toroidal membrane chassis outer rim has the deformation tendency being upturned.The present invention, which uses to rigidly fix, combines pretension
Power and the mode of reversible deformation, apply the deformation in certain reversible deformation and pretightning force, welding process while being rigidly fixed
Trend obtains certain constraint, has positive effect for the flatness size on toroidal membrane chassis.
In order to further control welding contraction distortion, problem is shunk for the welding during welding communicating pipe, in weldering
Shrinkage direction (i.e. communicating pipe axial direction) assembling support lacing wire is connect, the welding of control communicating pipe circumferential weld is shunk, to improving
Toroidal membrane chassis plane degree size has good action.
The present invention is carried out for the welding insufficient space problem caused by supporting lacing wire and being rigidly secured on platform
Solve, in traditional assembling mode, toroidal membrane chassis is that erection welding is carried out on height 1.5m or so buttress, to meet
Carry out the requirement of all-position welding.After new assembling mode, due to lacing wire and rigidly fixing platform, position is kept flat
Put welding insufficient space.The present invention is directed to this problem, and toroidal membrane chassis is fixed on positioner (rollover stand) platform, utilizes
Positioner (rollover stand) platform, regulation elasticity fuel tank chassis welding position can meet the condition for carrying out all-position welding.
The present invention is to support lacing wire between the new way that the toroidal membrane chassis with communicating pipe is assembled, adjacent spring fuel tank,
The welding controlled in communicating pipe welding process is shunk；The outer rim on toroidal membrane chassis is rigidly fixed and reversible deformation, it is to avoid
Toroidal membrane chassis outer rim is tilted caused by stress release；It is rigidly fixed on positioner (rollover stand) platform, solves just
Property fix and support after lacing wire weld insufficient space the problem of.
The toroidal membrane made using the process of the present invention, chassis plane degree problem is addressed, and has taken into account economy
Property and practicality, solve toroidal membrane chassis due to the problem of chassis plane degree is overproof caused by welding deformation.
Brief description of the drawings
Fig. 1 is toroidal membrane chassis schematic top plan view.
Fig. 2 is toroidal membrane chassis schematic front view.
Embodiment
It is an object of the invention to provide a kind of bullet with communicating pipe for ensureing product size after the welding of toroidal membrane chassis
Property fuel tank chassis assembly technique.The technical scheme is that：
(1) chassis blanking is processed：Chassis material uses carbon structural steel plate Q235 or low-alloy structural steel Q345, under
Flatten, process after material, make chassis plane degree no more than 0.05mm；(2) forging, casting and processing method are used according to drawing requirement
Manufacture toroidal membrane 1, branch iron and annulus；(3) toroidal membrane 1, branch iron and annulus are assembled according to drawing requirement, and welds Zhi Tie
With toroidal membrane weld seam；(4) according to drawing requirement, assembling toroidal membrane 1, communicating pipe and chassis, using bolt tight, make elasticity
Fuel tank is not more than 0.5mm with chassis clearance；(5) rigidly fix：Toroidal membrane is positioned on displacement machine platform, and leveling.
The welding equipment support lacing wire 2 of adjacent spring fuel tank upper surface, fixes L-type lacing wire 3, and press chassis using clapboard 4 around chassis
Tightly；(6) deflection is adjusted：Using laser tracker, measurement chassis adjusts clapboard 4 using the deflection after the compression of clapboard 4
Thrust, make chassis deflection for 1.1mm~1.3mm (7) weld communicating pipe：Displacement machine platform is rotated, communicating pipe is in
It is easy to the position of welding, preheating temperature is not less than 80 DEG C, and welding method is gas metal-arc welding, gaseous mixture volume proportion
78% argon gas adds 22% carbon dioxide (78%Ar+22%CO2), and welding sequence welds every communicating pipe one to be first along single direction
Side weld, then the welding offside communicating pipe weld seam that jumps；(8) weld inspection：Compression is filled with the oil-filled hole site of toroidal membrane 1 empty
Gas, in communicating pipe circumferential weld smearing suds, is repaired to air-leak section.(9) dismounting rigid fixation means 3 and lacing wire 2, are surveyed
Amount toroidal membrane chassis size is simultaneously cleared up.
As shown in Fig. 2 after the assembling of toroidal membrane chassis, being positioned on positioner (upset body panel), and adjusted with pad 5
It is flat.Such as Fig. 1 is in the adjacent spring upper surface welding equipment support lacing wire 2 of fuel tank 1, and on toroidal membrane chassis, outer rim arrangement rigidly fixes dress
Put, i.e. L-type lacing wire 3 and clapboard 4.
Hand hammer and the regulation elasticity fuel tank chassis anti-deformation of clapboard 4 are utilized as shown in Figure 2, and are surveyed using laser tracker
Measure anti-deformation.
Equipment need to be used：
Cutter
Screw jack
Hand hammer
Laser tracker
CNC milling machine
Natural gas supply system
Gas metal-arc welder
Gaseous mixture air supply system
Positioner
Concrete technology step：
(1) chassis blanking is processed：Chassis material uses carbon structural steel plate Q235 or low-alloy structural steel Q345, under
Flatten, process after material, make chassis plane degree no more than 0.05mm；
(2) toroidal membrane 1, branch iron and annulus are manufactured using forging, casting and processing method according to drawing requirement；
(3) toroidal membrane 1, branch iron and annulus are assembled according to drawing requirement, and welds the weld seam of Zhi Tieyu toroidal membranes 1；
(4) according to drawing requirement, assembling toroidal membrane 1, communicating pipe and chassis, using bolt tight, make toroidal membrane with
Chassis clearance is not more than 0.5mm；
(5) rigidly fix：Toroidal membrane is positioned on displacement machine platform, and leveling.In adjacent spring fuel tank upper surface
Welding equipment supports lacing wire 2, L-type lacing wire 3 is fixed around chassis, and compress chassis using clapboard 4；
(6) deflection is adjusted：Using laser tracker, measurement chassis adjusts wedge using the deflection after the compression of clapboard 4
The thrust of shape plate 4, it is 1.1mm~1.3mm to make chassis deflection；
(7) communicating pipe is welded：Displacement machine platform is rotated, communicating pipe is in the position for being easy to welding, preheating temperature is not low
In 80 DEG C, welding method is gas metal-arc welding, and the argon gas of gaseous mixture volume proportion 78% adds 22% carbon dioxide (78%Ar
+ 22%CO2), welding sequence for first along single direction weld every communicating pipe one side weld, then jump welding offside communicating pipe weldering
Seam；
(8) weld inspection：Compressed air is filled with the oil-filled hole site of toroidal membrane 1, in communicating pipe circumferential weld smearing fertilizer
Soap water, is repaired to air-leak section.
(9) dismounting rigid fixation means 3 and lacing wire 2, measure toroidal membrane chassis size and clear up.
The present invention is to support lacing wire between the new way that the toroidal membrane chassis with communicating pipe is assembled, adjacent spring fuel tank,
The welding controlled in communicating pipe welding process is shunk；The outer rim on toroidal membrane chassis is rigidly fixed and reversible deformation, it is to avoid
Toroidal membrane chassis outer rim is tilted caused by stress release；It is rigidly fixed on positioner (rollover stand) platform, solves just
Property fix and support after lacing wire weld insufficient space the problem of.
The toroidal membrane chassis made using the process of the present invention, chassis plane degree problem is addressed, taken into account
Economy and practicality, solve toroidal membrane chassis due to the problem of chassis plane degree is overproof caused by welding deformation.
Claims (1)
1. a kind of toroidal membrane erection welding process with communicating tube structure, it is characterized in that：
1) chassis blanking is processed：Chassis material uses carbon structural steel plate Q235 or low-alloy structural steel Q345, after blanking
Flatten, process, make chassis plane degree no more than 0.05mm；
2) toroidal membrane, branch iron and annulus are manufactured using forging, casting method according to drawing requirement；
3) toroidal membrane, branch iron and annulus are assembled according to drawing requirement, and welds Zhi Tieyu toroidal membrane weld seams；
4) according to drawing requirement, assembling toroidal membrane, communicating pipe and chassis, using bolt tight, make between toroidal membrane and chassis
Gap is not more than 0.5mm；
5) rigidly fix：Toroidal membrane is positioned on displacement machine platform, and leveling；In adjacent spring fuel tank upper surface welding equipment branch
Lacing wire is supportted, L-type lacing wire is fixed around chassis, and compress chassis using clapboard；
6) deflection is adjusted：Using laser tracker, measurement chassis adjusts clapboard using the deflection after clapboard compression
Thrust, it is 1.1mm~1.3mm to make chassis deflection；
7) communicating pipe is welded：Displacement machine platform is rotated, communicating pipe is in the position for being easy to welding, preheating temperature is not less than 80
DEG C, welding method is gas metal-arc welding, and the argon gas of gaseous mixture volume proportion 78% adds 22% carbon dioxide, and welding sequence is
First along single direction weld every communicating pipe one side weld, then jump welding offside communicating pipe weld seam；
8) weld inspection：Be filled with compressed air in the oil-filled hole site of toroidal membrane, communicating pipe circumferential weld smear suds, it is right
Air-leak section is repaired；
9) dismounting rigid fixation means and lacing wire, measure toroidal membrane chassis size and clear up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875307.0A CN105414783B (en) | 2015-12-03 | 2015-12-03 | A kind of toroidal membrane erection welding process with communicating tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875307.0A CN105414783B (en) | 2015-12-03 | 2015-12-03 | A kind of toroidal membrane erection welding process with communicating tube structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105414783A CN105414783A (en) | 2016-03-23 |
| CN105414783B true CN105414783B (en) | 2017-10-10 |
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| CN201510875307.0A Active CN105414783B (en) | 2015-12-03 | 2015-12-03 | A kind of toroidal membrane erection welding process with communicating tube structure |
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| CN106346158A (en) * | 2016-11-11 | 2017-01-25 | 成都陵川特种工业有限责任公司 | Automobile spare part end welding technological process |
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| JP3080380B2 (en) * | 1988-11-09 | 2000-08-28 | 株式会社日立製作所 | Water turbine, equipment, and method of manufacturing the same |
| CN201013521Y (en) * | 2006-10-09 | 2008-01-30 | 哈尔滨电机厂机电工业有限责任公司 | Single corrugated elastic oil tank |
| CN201059239Y (en) * | 2006-12-18 | 2008-05-14 | 哈尔滨电机厂机电工业有限责任公司 | Poly-corrugated elastic oil tank |
| CN101758323A (en) * | 2009-11-27 | 2010-06-30 | 哈尔滨电机厂有限责任公司 | Dual-dovetail type unmovable key bar assembling and welding process for water turbine generator |
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