CN106514069A - Device inhibiting welding defects of small-diameter aluminum alloy guiding pipe - Google Patents

Device inhibiting welding defects of small-diameter aluminum alloy guiding pipe Download PDF

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Publication number
CN106514069A
CN106514069A CN201611108072.3A CN201611108072A CN106514069A CN 106514069 A CN106514069 A CN 106514069A CN 201611108072 A CN201611108072 A CN 201611108072A CN 106514069 A CN106514069 A CN 106514069A
Authority
CN
China
Prior art keywords
aluminum alloy
support
diameter aluminum
minor diameter
suppressing
Prior art date
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
Application number
CN201611108072.3A
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Chinese (zh)
Inventor
贾洪德
杨修东
贺斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Aerospace Equipment Manufacturing General Factory Co Ltd
Original Assignee
Shanghai Aerospace Equipment Manufacturing General Factory Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Aerospace Equipment Manufacturing General Factory Co Ltd filed Critical Shanghai Aerospace Equipment Manufacturing General Factory Co Ltd
Priority to CN201611108072.3A priority Critical patent/CN106514069A/en
Publication of CN106514069A publication Critical patent/CN106514069A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups

Abstract

The invention provides a device inhibiting welding defects of a small-diameter aluminum alloy guiding pipe. The device inhibiting the welding defects of the small-diameter aluminum alloy guiding pipe can be applied to welding of small-diameter aluminum alloy guiding pipes of a spacecraft or in other fields.

Description

A kind of device for suppressing minor diameter aluminum alloy conduit weld defect
Technical field
The present invention relates to a kind of auxiliary welding equipment, in particular, it is related to a kind of suppression minor diameter aluminum alloy conduit The device of weld defect.
Background technology
Minor diameter aluminum alloy conduit is generally light-wall pipe, the method that argon tungsten-arc welding is adopted its butt welding more.Due to size Limit, the typically no support in workpiece back, while welding condition scope is narrower, therefore easily form weld blowhole, lack of penetration With the defect such as misalignment.
The content of the invention
The present invention will improve minor diameter aluminum alloy conduit assemble welding, increase welding condition scope, suppress welding to lack Fall into and occur.
It is critical only that for the present invention increase inner support in conduit welding position.
The material for making inner support is the fluorine-containing activating agent that aluminum alloy melting weldering can be used;The general ratio of inner support diameter is led The little 0.1-0.3mm of bore, is advisable with being positioned over formation tight fit during guide pipe inner hole;The thickness of inner support is greater than weld seam width Degree, is advisable with 4-5mm;Immediately below conduit docking location, whole circle circular arc weldering bakie is opened up on inner support is cylindrical, bakie width is welded Degree is not more than 0.5mm less than weld width 1-2mm, depth;Open up on inner support is cylindrical several gas vents connection weldering bakies with The external world, gas vent are circumferentially generally 1mm or so, are radially not more than 0.5mm.
The inner support as made by above-mentioned condition, in assemble welding pair in be placed in catheter interior, can fit in welding process Work as high current, in making the uniform heavy bakie with weldering of weldering leakage.Can be carried out using the method such as solid, liquid, gas pair of interior support after the completion of welding Cleaning.
The beneficial effects of the present invention is:
1) increased inner support to improve assembling effect, reduce misalignment defect and produce to being increased constraint by weldering conduit.
2) weldering bakie is formed with inner support, molten metal can be formed and be supported, therefore electricity can be suitably increased when welding Stream, contributes to the gas effusion in molten bath, reduces the generation of gas hole defect, while the formation for welding leakage can reduce incomplete penetration defect Generation.
3) inner support is made up of the fluorine-containing activating agent that Welded can be used, and the metal that high temperature is contacted during welding melts Liquid, can be reacted with hydrogen therein and form hydrogen fluoride discharge, contribute to eliminating weld blowhole.
4) inner support weldering bakie is provided with gas vent, discharges can the gas that heated up by weld heating in weldering bakie, just Well shape in weld seam back.
Description of the drawings
Fig. 1 is that a kind of operation principle of the device of suppression minor diameter aluminum alloy conduit weld defect that the present invention is provided is illustrated Figure.
Fig. 2 is a kind of schematic cross-section of the device of suppression minor diameter aluminum alloy conduit weld defect that the present invention is provided.
Specific embodiment
Embodiment of the present invention is illustrated below in conjunction with the accompanying drawings, in accompanying drawing 1:1 be conduit A, 2 be conduit B, 3 be inner support, 4 To weld bakie, 5 is gas vent.
Specific embodiment is as follows:
1) activating agent that can be used using Welded makes the inner support 3 in accompanying drawing 1, and diameter is typically little than catheter diameter 0.1-0.3mm;Width is more than weld width 4-5mm;4 width of weldering bakie is less than weld width 1-2mm, and depth is not more than 0.5mm, For circular arc;Open up gas vent 5 some, gas vent 5 is circumferential to be generally 1mm or so, is radially not more than 0.5mm.
2) conduit A1 and conduit B2 interfaces make perpendicular cuts face, and conduit A1, conduit B2 and inner support 3 are pressed accompanying drawing 1 Shown centered assembling.
3) preliminary filling protective gas inside dummy pipe is welded, then starts welding.
4) inner support 3 is removed after the completion of welding, the method such as solid, liquid, gas may be used individually or jointly during removing, is removed Method is illustrated:As hard thing is tapped, gases at high pressure, liquid extrusion etc..
After removing inner support 3, as needed catheter interior is cleared up.

Claims (5)

1. a kind of device for suppressing minor diameter aluminum alloy conduit weld defect, it is characterised in that described device is and guide pipe inner hole Close-fitting inner support is formed, whole lap welding bakie is opened up on the inner support is cylindrical, be further opened with the inner support is cylindrical Several gas vents, the gas vent connect the weldering bakie.
2. a kind of as described in claim 1 device for suppressing minor diameter aluminum alloy conduit weld defect, it is characterised in that institute State inner support to be made up of the fluorine-containing activating agent that can be used for aluminum alloy melting weldering.
3. a kind of as described in claim 2 device for suppressing minor diameter aluminum alloy conduit weld defect, it is characterised in that institute The thickness for stating inner support is more than weld width.
4. a kind of as described in claim 1 device for suppressing minor diameter aluminum alloy conduit weld defect, it is characterised in that institute State weldering bakie width and be less than weld width.
5. a kind of as described in claim 1 device for suppressing minor diameter aluminum alloy conduit weld defect, it is characterised in that institute It is circular arc to state weldering bakie.
CN201611108072.3A 2016-12-06 2016-12-06 Device inhibiting welding defects of small-diameter aluminum alloy guiding pipe Pending CN106514069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611108072.3A CN106514069A (en) 2016-12-06 2016-12-06 Device inhibiting welding defects of small-diameter aluminum alloy guiding pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611108072.3A CN106514069A (en) 2016-12-06 2016-12-06 Device inhibiting welding defects of small-diameter aluminum alloy guiding pipe

Publications (1)

Publication Number Publication Date
CN106514069A true CN106514069A (en) 2017-03-22

Family

ID=58342483

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611108072.3A Pending CN106514069A (en) 2016-12-06 2016-12-06 Device inhibiting welding defects of small-diameter aluminum alloy guiding pipe

Country Status (1)

Country Link
CN (1) CN106514069A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107150202A (en) * 2017-05-26 2017-09-12 上海航天设备制造总厂 A kind of aluminum alloy conduit welding inner support and the welding method using inner support
CN107398625A (en) * 2017-08-04 2017-11-28 上海航天设备制造总厂 Inner support heat abstractor and its application method for the welding of thin-walled one side of something pipe

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0489198A (en) * 1990-07-31 1992-03-23 Nkk Corp Inner face clamping jig for circular-welding pipe
CN1099110A (en) * 1994-05-27 1995-02-22 胜利石油管理局油建二公司 Sleeve-bonding jointing method for weld of lining pipe
DE69906244T2 (en) * 1999-02-04 2004-01-29 Otkrytoe Aktsionernoe Obschest Process for making a weld
CN201815835U (en) * 2010-10-20 2011-05-04 首都航天机械公司 Welded joint for all-position welding
CN102554484A (en) * 2012-01-11 2012-07-11 阮继成 Metal pipe welding method and metal pipe welding assembly
CN202461901U (en) * 2011-11-22 2012-10-03 北京星航机电设备厂 Mechanical inner supporting mechanism
CN203265843U (en) * 2013-04-23 2013-11-06 中国核电工程有限公司 Combination of welding backing, fusible embedded strip and conducting rod
US20140361528A1 (en) * 2013-06-05 2014-12-11 National Pingtung University Of Science And Technology Lined sleeve for tube welding
CN104625327A (en) * 2015-01-04 2015-05-20 武汉天高熔接股份有限公司 Flux backing material for all-position welding and production process thereof
CN204771091U (en) * 2015-07-10 2015-11-18 成都焊研威达科技股份有限公司 Be applied to out -of --way gas protection device of plasma welding

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0489198A (en) * 1990-07-31 1992-03-23 Nkk Corp Inner face clamping jig for circular-welding pipe
CN1099110A (en) * 1994-05-27 1995-02-22 胜利石油管理局油建二公司 Sleeve-bonding jointing method for weld of lining pipe
DE69906244T2 (en) * 1999-02-04 2004-01-29 Otkrytoe Aktsionernoe Obschest Process for making a weld
CN201815835U (en) * 2010-10-20 2011-05-04 首都航天机械公司 Welded joint for all-position welding
CN202461901U (en) * 2011-11-22 2012-10-03 北京星航机电设备厂 Mechanical inner supporting mechanism
CN102554484A (en) * 2012-01-11 2012-07-11 阮继成 Metal pipe welding method and metal pipe welding assembly
CN203265843U (en) * 2013-04-23 2013-11-06 中国核电工程有限公司 Combination of welding backing, fusible embedded strip and conducting rod
US20140361528A1 (en) * 2013-06-05 2014-12-11 National Pingtung University Of Science And Technology Lined sleeve for tube welding
CN104625327A (en) * 2015-01-04 2015-05-20 武汉天高熔接股份有限公司 Flux backing material for all-position welding and production process thereof
CN204771091U (en) * 2015-07-10 2015-11-18 成都焊研威达科技股份有限公司 Be applied to out -of --way gas protection device of plasma welding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王芝玲等: "《焊接金属学》", 31 August 2014, 北京理工大学出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107150202A (en) * 2017-05-26 2017-09-12 上海航天设备制造总厂 A kind of aluminum alloy conduit welding inner support and the welding method using inner support
CN107398625A (en) * 2017-08-04 2017-11-28 上海航天设备制造总厂 Inner support heat abstractor and its application method for the welding of thin-walled one side of something pipe

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