CN101190478A - Aluminium and aluminium alloy tubular welding wire for gas welding and preparation method thereof - Google Patents

Aluminium and aluminium alloy tubular welding wire for gas welding and preparation method thereof Download PDF

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Publication number
CN101190478A
CN101190478A CNA2006101186592A CN200610118659A CN101190478A CN 101190478 A CN101190478 A CN 101190478A CN A2006101186592 A CNA2006101186592 A CN A2006101186592A CN 200610118659 A CN200610118659 A CN 200610118659A CN 101190478 A CN101190478 A CN 101190478A
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CN
China
Prior art keywords
welding wire
aluminium
pipe
welding
wire
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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
CNA2006101186592A
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Chinese (zh)
Inventor
邓键
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 SIMIKE WELDING MATERIAL CO Ltd
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SHANGHAI SIMIKE WELDING MATERIAL 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 SIMIKE WELDING MATERIAL CO Ltd filed Critical SHANGHAI SIMIKE WELDING MATERIAL CO Ltd
Priority to CNA2006101186592A priority Critical patent/CN101190478A/en
Publication of CN101190478A publication Critical patent/CN101190478A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a welding wire used for autogenous welding, in particular to a pipe-shaped welding wire used for autogenous welding and the preparation method. The invention comprises a pipe-shaped welding wire pipe made of aluminium and a flux filled in the welding wire pipe; the flux is the composition of smelting fluorid which mainly comprises 45% to 47% of KF and 53% to 55% of ALF3; the preparation method of the welding wire is implemented by a plurality of steps: step 1. aluminium / aluminium silicon ingot is extruded into a welding wire pipe billet on an extrusion presser by using a combination die; step 2. the composition of the smelting fluorid is mixed and melted according to proportion; step 3. the fluorid composition melted in the step 2 is cooled and crushed into powder; step 4. the powder composition obtained in the step 3 is added to a pipe billet core till fully filled; step 5. the pipe billet with added powder composition obtained in the step 4 is continuously drawn to pipe-shaped welding wire on a drawbench and is then straightened and cut to obtain the welding wire.

Description

Gas welding aluminium and aluminium alloy pipe shape welding wire and preparation method thereof
Technical field
The present invention relates to the gas welding welding wire, relate in particular to a kind of gas welding flux cored wire and preparation method thereof.
Background technology
In automobile, shipbuilding, chemical industry, food, field such as electric, various sheet metals, all need by gas welding welding amalgamation and be connected as aluminium plate, must coat scaling powder at solid welding wire or surface of the work when existing aluminium and aluminium alloy gas welding and remove the aluminium surface film oxide and could implement to weld.During welding, the scaling powder addition is not easy control, and the constructor of actual welding experience also can't accurately control even if having for many years; Simultaneously, the easy moisture absorption of welding residue has very big corrosivity for aluminum mother plate, must clean immediately after the welding; For the user, buy this type of welding rod and need buy welding wire and scaling powder simultaneously, very trouble.
Summary of the invention
The present invention is intended to solve the problems referred to above of existing welding rod, and a kind of gas welding aluminium and aluminium alloy pipe shape welding wire and preparation method thereof is provided.Gas welding of the present invention is integrated welding wire and scaling powder with flux cored wire and preparation method thereof, and the welding residue can the moisture absorption, does not corrode the aluminium workpiece.
The present invention is achieved in that a kind of gas welding aluminium and aluminium alloy pipe shape welding wire, and it comprises the welding wire pipe and the scaling powder that is filled in the welding wire pipe of tubulose,
Described welding wire pipe mainly adopts metallic aluminium to make;
Described scaling powder is the composition of the fluoride of smelting type, and it mainly comprises the KF of 45%-47% and the AlF of 53-55% 3
Described percentage is weight percentage.
Described welding wire pipe also can be alusil alloy, and wherein aluminium content is 95%, and silicone content is 5%.
Described scaling powder also comprises the ZnF less than 2% 2
Described gas welding is implemented by following step with the preparation method of aluminium and aluminium alloy pipe shape welding wire:
Step 1 adopts combination die on extruder aluminium/aluminium silicon ingot to be extruded into the welding wire pipe;
Step 2, with described smelting type fluoride composition according to described ratio mixed smelting;
Step 3 will be broken into Powdered through the fluoride composition cooling that obtains after the step 2 melting;
Step 4 is added the Powdered fluorinated composition that obtains by step 3 in the welding wire pipe core to filling up on bobbing machine;
Step 5, with the interpolation that obtains in the step 4 pipe continuous drawing on wire drawing machine of powdered composition become the welding wire pipe, alignment is cut off to make welding wire.
Described welding wire pipe diameter is ф 8-ф 12mm; The welding wire pipe diameter that obtains after the described wire drawing is ф 1-ф 6mm.
Be crushed to less than 60 orders after the described fluoride composition cooling.
The present invention is prepared into tubulose with welding wire, and scaling powder adds in the tube core, need not to purchase separately scaling powder during buying, can control the consumption of scaling powder when filling.Therefore, do not need to add in addition scaling powder during welding; Simultaneously, the slag that welding wire produces is difficult for the moisture absorption, can not corrode aluminum products, has made things convenient for construction.
The specific embodiment
Below, provide the specific embodiment of the present invention:
A kind of gas welding comprises the welding wire pipe of tubulose and is filled in the interior scaling powder of welding wire pipe with aluminium and aluminium alloy pipe shape welding wire;
Described welding wire pipe mainly adopts metallic aluminium to make, and metallic aluminium purity is more than 99.5%, in another embodiment, employing be alusil alloy, wherein aluminium content is 95%, silicone content is 5%;
Described scaling powder is the composition of the fluoride of smelting type, and it comprises that percentage by weight is the KF of 45%-47% and the AlF of 53-55% 3And less than 2% ZnF 2, the welding slag of these scaling powders can moisture absorption, therefore can not corrode the workpiece of aluminum, and according to actual needs, the scaling powder packing ratio is 10~30%, thereby reaches the purpose of the consumption of control scaling powder.
Described gas welding is to be prepared from according to following step with aluminium and aluminium alloy pipe shape welding wire:
Step 1 adopts combination die on extruder aluminium or aluminium silicon ingot to be extruded into the welding wire pipe that external diameter is ф 8-ф 12mm;
Step 2, with described smelting type fluoride composition, promptly according to described ratio mixed smelting, in the present embodiment KF account for 45%, AlF 3Account for 54%, ZnF 2Be 1%;
Step 3 will be broken into less than 60 purposes Powdered through the cooling of the fluoride composition after the step 2 melting;
Step 4 is added the Powdered fluoride composition that obtains by step 3 in the pipe core to filling up on bobbing machine;
Step 5, with the interpolation that obtains in the step 4 pipe continuous drawing on wire drawing machine of Powdered fluoride composition to become diameter be the flux cored wire of ф 1-ф 6mm, alignment and cut off flux cored wire of the present invention.
Adopt the mechanical performance of flux cored wire weld metal of the present invention to see the following form:
Weld seam mechanical performance table:
Component of weld wire Tensile strength N/m 2 Percentage elongation %
??99.5%Al ??65-70 ??25-35
??Al-5%Si ??>120 ??>8

Claims (6)

1. a gas welding is characterized in that with aluminium and aluminium alloy pipe shape welding wire, and it comprises the welding wire pipe and the scaling powder that is filled in the welding wire pipe of tubulose,
Described welding wire pipe mainly adopts metallic aluminium to make;
Described scaling powder is the composition of the fluoride of smelting type, and it mainly comprises the KF of 45%-47% and the AlF of 53-55% 3
Described percentage is weight percentage.
2. gas welding according to claim 1 is characterized in that with aluminium and aluminium alloy pipe shape welding wire described welding wire pipe is an alusil alloy, and wherein aluminium content is 95%, and silicone content is 5%.
3. gas welding according to claim 1 and 2 is characterized in that with aluminium and aluminium alloy pipe shape welding wire described scaling powder also comprises the ZnF less than 2% 2
4. gas welding according to claim 1 is characterized in that with the preparation method of aluminium and aluminium alloy pipe shape welding wire described preparation method implements by following step:
Step 1 adopts combination die on extruder aluminium/aluminium silicon ingot to be extruded into the welding wire pipe;
Step 2, with described smelting type fluoride composition according to described ratio mixed smelting;
Step 3 will be broken into Powdered through the fluoride composition cooling that obtains after the step 2 melting;
Step 4 is added the Powdered fluorinated composition that obtains by step 3 in the welding wire pipe core to filling up on bobbing machine;
Step 5, with the interpolation that obtains in the step 4 pipe continuous drawing on wire drawing machine of powdered composition become the welding wire pipe, alignment is cut off to make welding wire.
5. according to the preparation method of right 4 described gas weldings, it is characterized in that described welding wire pipe diameter is φ 8-φ 12mm with aluminium and aluminium alloy pipe shape welding wire; The gage of wire that obtains after the described wire drawing is φ 1-φ 6mm.
6. gas welding according to claim 4 is characterized in that with the preparation method of aluminium and aluminium alloy pipe shape welding wire, in the affiliated step 3, is crushed to less than 60 orders after the described fluoride composition cooling.
CNA2006101186592A 2006-11-22 2006-11-22 Aluminium and aluminium alloy tubular welding wire for gas welding and preparation method thereof Pending CN101190478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2006101186592A CN101190478A (en) 2006-11-22 2006-11-22 Aluminium and aluminium alloy tubular welding wire for gas welding and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2006101186592A CN101190478A (en) 2006-11-22 2006-11-22 Aluminium and aluminium alloy tubular welding wire for gas welding and preparation method thereof

Publications (1)

Publication Number Publication Date
CN101190478A true CN101190478A (en) 2008-06-04

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947702A (en) * 2010-09-21 2011-01-19 北京工业大学 Novel brazing flux-containing aluminum alloy soldering wire and preparation method thereof
CN102423834A (en) * 2011-09-30 2012-04-25 河海大学常州校区 Highly-active soldering flux suitable for stepped brazing of magnesium-aluminum alloy and preparation method of highly-active soldering flux
CN102441747A (en) * 2011-06-28 2012-05-09 力创(台山)电子科技有限公司 Brazing flux for welding aluminum and aluminum alloy flux-cored wires
CN102883852A (en) * 2009-07-31 2013-01-16 株式会社神户制钢所 Flux-cored wire for welding different materials, method for laser welding of different materials, and method for MIG welding of different materials
CN105414807A (en) * 2015-12-31 2016-03-23 广州汉源新材料有限公司 Core filling method for solder wire soldering flux
CN108723642A (en) * 2018-05-23 2018-11-02 郭守华 Alusil alloy wire forming process

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102883852B (en) * 2009-07-31 2015-11-25 株式会社神户制钢所 Welding dissimilar materials filling flux welding wire, foreign material method for laser welding and foreign material MIG welding method
CN102883852A (en) * 2009-07-31 2013-01-16 株式会社神户制钢所 Flux-cored wire for welding different materials, method for laser welding of different materials, and method for MIG welding of different materials
CN101947702B (en) * 2010-09-21 2013-04-17 北京工业大学 Novel brazing flux-containing aluminum alloy soldering wire and preparation method thereof
CN101947702A (en) * 2010-09-21 2011-01-19 北京工业大学 Novel brazing flux-containing aluminum alloy soldering wire and preparation method thereof
CN102441747A (en) * 2011-06-28 2012-05-09 力创(台山)电子科技有限公司 Brazing flux for welding aluminum and aluminum alloy flux-cored wires
CN102423834A (en) * 2011-09-30 2012-04-25 河海大学常州校区 Highly-active soldering flux suitable for stepped brazing of magnesium-aluminum alloy and preparation method of highly-active soldering flux
CN102423834B (en) * 2011-09-30 2014-01-22 河海大学常州校区 Highly-active soldering flux suitable for stepped brazing of magnesium-aluminum alloy
CN105414807A (en) * 2015-12-31 2016-03-23 广州汉源新材料有限公司 Core filling method for solder wire soldering flux
CN108723642A (en) * 2018-05-23 2018-11-02 郭守华 Alusil alloy wire forming process

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