CN110434418A - The welding method of oxygen-free copper workpiece and aluminium bronze workpiece - Google Patents
The welding method of oxygen-free copper workpiece and aluminium bronze workpiece Download PDFInfo
- Publication number
- CN110434418A CN110434418A CN201910558653.4A CN201910558653A CN110434418A CN 110434418 A CN110434418 A CN 110434418A CN 201910558653 A CN201910558653 A CN 201910558653A CN 110434418 A CN110434418 A CN 110434418A
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- Prior art keywords
- workpiece
- oxygen
- free copper
- welded
- aluminium bronze
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Classifications
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/206—Cleaning
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/12—Copper or alloys thereof
Abstract
The invention discloses the welding methods of a kind of oxygen-free copper workpiece and aluminium bronze workpiece, belong to welding technology field.Welding method includes: to carry out preweld cleaning to oxygen-free copper workpiece and aluminium bronze workpiece respectively；By after cleaning the oxygen-free copper workpiece and the aluminium bronze workpiece be assembled together；It takes the welding manner of gas brazing to be welded to connect the position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece, forms soldered fitting.Welding method provided in an embodiment of the present invention can prevent workpiece from being burnt in the welding process, while reduce the welding deformation amount that workpiece is generated in welding.
Description
Technical field
The present invention relates to welding technology field, in particular to a kind of welding method of oxygen-free copper workpiece and aluminium bronze workpiece.
Background technique
Oxygen-free copper and aluminium bronze all have preferable corrosion resisting property, and anti-corrosion resistance is preferable in atmosphere and seawater, therefore, two
Person is often by as anti-corrosion original part.In the pipe joint of labyrinth, often need oxygen-free copper workpiece using the method for welding and
Aluminium bronze workpiece is welded to connect.
It is usually all to be welded together oxygen-free copper workpiece and aluminium bronze workpiece using gas shielded arc welding method at present.But
It is when welding above two workpiece, easily staying molten bath under molten bath gravity and blow force of arc effect causes workpiece to burn.
Simultaneously in the case where welding heat effect, workpiece itself constraint (restraint) degree is small, and when welding can generate biggish deflection, finally workpiece is generated
Wave transformation, it is difficult to correct.
Summary of the invention
The embodiment of the invention provides the welding methods of a kind of oxygen-free copper workpiece and aluminium bronze workpiece, can prevent workpiece from existing
It is burnt in welding process, while reducing the welding deformation amount that workpiece is generated in welding.The technical solution is as follows:
The present invention provides the welding method of a kind of oxygen-free copper workpiece and aluminium bronze workpiece, the welding method includes:
Preweld cleaning is carried out to oxygen-free copper workpiece and aluminium bronze workpiece respectively；
By after cleaning the oxygen-free copper workpiece and the aluminium bronze workpiece be assembled together；
The welding manner of gas brazing is taken to weld the position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece
It connects in succession, forms soldered fitting.
It is further, described that preweld cleaning is carried out to oxygen-free copper workpiece and aluminium bronze workpiece respectively, comprising:
Remove the oxidation film at the position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece respectively using wire brush；
The position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece is polished respectively using stainless steel wire wheel coarse.
Further, the oxygen-free copper workpiece by after cleaning and the aluminium bronze workpiece are assembled together, comprising:
The position to be welded of the oxygen-free copper workpiece is overlapped in the position to be welded of the aluminium bronze workpiece.
Further, the oxygen-free copper workpiece by after cleaning and the aluminium bronze workpiece are assembled together, comprising:
The position to be welded of the oxygen-free copper workpiece is sleeved on outside the position to be welded of the aluminium bronze workpiece, or will
The position to be welded of the aluminium bronze workpiece is sleeved on outside the position to be welded of the oxygen-free copper workpiece.
Further, the oxygen-free copper workpiece by after cleaning and the aluminium bronze workpiece are assembled together, comprising:
In the same plane by the position to be welded of the oxygen-free copper workpiece and the position to be welded of the aluminium bronze workpiece
Interval setting, and the interval between the position to be welded of the oxygen-free copper workpiece and the position to be welded of the aluminium bronze workpiece is small
In 0.5mm.
Further, the welding manner for taking gas brazing is by the oxygen-free copper workpiece and the aluminium bronze workpiece
Position to be welded is welded to connect, comprising:
The first step holds gas brazing spray head and solder, and solder one end is glued and takes solder flux；
Viscous one end for taking solder flux of the solder is placed on the oxygen-free copper workpiece and the aluminium bronze work by second step
Between the position to be welded of part, and continued using the viscous one end for taking the solder flux of the gas brazing spray head to the solder
3~5s is heated, until the viscous part for taking solder flux of the solder is melted completely to the oxygen-free copper workpiece and the aluminium bronze
Between the position to be welded of workpiece；
Third step repeats the first step and second step, until the oxygen-free copper workpiece and the aluminium bronze workpiece is to be welded
Filling is fully welded material between position, completes welding.
Further, the solder is using filament made of L302 material, and the solder flux is using QJ102 material
Manufactured powder.
Further, the heating temperature of the gas brazing spray head is 800~860 DEG C.
Further, the welding method further include:
400 DEG C are cooled to the soldered fitting, the 1.5~2h of soldered fitting is coated using alumina silicate fiber felt.
Further, 100~150 DEG C are cooled to the soldered fitting, the soldered fitting is placed on citric acid and is contained
In the aqueous citric acid solution that amount is 10%, the soldered fitting is cleaned.
Technical solution provided in an embodiment of the present invention has the benefit that
The position to be welded of oxygen-free copper workpiece and aluminium bronze workpiece is welded by using the welding manner of gas brazing and is connected
It connects, compared with using gas shielded arc welding method to weld together oxygen-free copper workpiece and aluminium bronze workpiece in the prior art, nothing
Electric arc need to be used, so as to avoid under blow force of arc, the case where causing workpiece to burn is stayed in molten bath.Simultaneously because fiery
Temperature when flame is brazed needs to be less than the melting temperature of base material, and therefore, the heat that when gas brazing generates is less, can reduce work
The welding deformation amount that part generates when welding, to guarantee the welding precision of workpiece.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the welding method of a kind of oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention；
Fig. 2 is the welding method of another oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention；
Fig. 3 is a kind of assembling schematic diagram of oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention；
Fig. 4 is the assembling schematic diagram of another oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention；
Fig. 5 is the assembling schematic diagram of another oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is the welding method of a kind of oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention, such as Fig. 1 institute
Show, which includes:
Step 101 carries out preweld cleaning to oxygen-free copper workpiece and aluminium bronze workpiece respectively.
Step 102, by after cleaning oxygen-free copper workpiece and aluminium bronze workpiece be assembled together.
Step 103 takes the welding manner of gas brazing to weld the position to be welded of oxygen-free copper workpiece and aluminium bronze workpiece
It connects in succession, forms soldered fitting.
Wherein, soldering be it is a kind of using fusing point than base material (oxygen-free copper workpiece and aluminium bronze workpiece i.e. in the application) fusing point
Low filling metal (solder), lower than base material fusing point, higher than solder melt point concept at a temperature of, using liquid solder in base material
Surface wettability is sprawled and the joint filling in base material gap, is mutually dissolved and is spread with base material, and realizes the welding of the connection between part
Method.Gas brazing is to be formed by flame using the gasification product of fuel gas or liquid fuel and the mixed firinor fuel burning of oxygen or air
To carry out soldering heating.
The embodiment of the present invention is by using the welding manner of gas brazing by the to be welded of oxygen-free copper workpiece and aluminium bronze workpiece
Socket part position is welded to connect, and uses gas shielded arc welding method to be welded on oxygen-free copper workpiece and aluminium bronze workpiece in the prior art
It compares together, without electric arc, so as to avoid under blow force of arc, the case where causing workpiece to burn hair is stayed in molten bath
It is raw.Simultaneously because temperature when gas brazing needs to be less than the melting temperature of base material, therefore, the heat that when gas brazing generates compared with
It is few, it can reduce the welding deformation amount generated when workpiece welding, to guarantee the welding precision of workpiece.
Fig. 2 is the welding method of another oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention, such as Fig. 2 institute
Show, which includes:
Step 201 carries out preweld cleaning to oxygen-free copper workpiece and aluminium bronze workpiece respectively.
Illustratively, step 201 may include:
Remove the oxidation film at the position to be welded of oxygen-free copper workpiece and aluminium bronze workpiece respectively using wire brush.Due to aerobic
On the metal surface for changing film, liquid solder difficulty and metal occur to moisten.Therefore it needs the oxidation of workpiece welding portion faces
Film removal.
The position to be welded of oxygen-free copper workpiece and aluminium bronze workpiece is polished respectively using stainless steel wire wheel coarse, is conducive to pricker
Capillarity when weldering makes solder be easy cross flow and enters in workpiece gap.
Step 202, by after cleaning oxygen-free copper workpiece and aluminium bronze workpiece be assembled together.
Fig. 3 is a kind of assembling schematic diagram of oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention, such as Fig. 3 institute
Show, in a kind of implementation of the invention, step 202 may include:
The position to be welded of oxygen-free copper workpiece 310 is overlapped in the position to be welded of aluminium bronze workpiece 320.
Fig. 4 is the assembling schematic diagram of another oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention, such as Fig. 4
Shown, in another implementation of the invention, step 202 may include:
The position to be welded of oxygen-free copper workpiece 410 is sleeved on outside the position to be welded of aluminium bronze workpiece 420, or by aluminium
The position to be welded of bronze workpiece 420 is sleeved on the outer (not shown) of position to be welded of oxygen-free copper workpiece 410.
Fig. 5 is the assembling schematic diagram of another oxygen-free copper workpiece and aluminium bronze workpiece provided in an embodiment of the present invention, such as Fig. 5
Shown, in another implementation of the invention, step 202 may include:
By the position to be welded of oxygen-free copper workpiece 510 and the position to be welded of aluminium bronze workpiece 520 in the same plane between
Interval d every setting, and between the position to be welded of oxygen-free copper workpiece 510 and the position to be welded of aluminium bronze workpiece 520 is less than
0.5mm。
During practical set, can according to the position to be welded of oxygen-free copper workpiece 510 and aluminium bronze workpiece 520 to
The concrete shape of welding position is specifically assembled using which kind of assembly method to choose.
Preferably, using overlap joint or suit ground form, by two workpiece socket part to be welded is assembled, and can make up soldering strength
Deficiency, and anti-burn-through.
Step 203 takes the welding manner of gas brazing to weld the position to be welded of oxygen-free copper workpiece and aluminium bronze workpiece
It connects in succession, forms soldered fitting.
Illustratively, step 203 may include:
The first step holds gas brazing spray head and solder, and solder one end is glued and takes solder flux.
Viscous one end for taking solder flux of solder is placed on the socket part to be welded of oxygen-free copper workpiece and aluminium bronze workpiece by second step
Between position, and using gas brazing spray head to the viscous one end 3~5s of continuous heating for taking solder flux of solder, until the viscous of solder takes
There is the part of solder flux to melt completely between oxygen-free copper workpiece and the position to be welded of aluminium bronze workpiece；
Third step repeats the first step and second step, until between oxygen-free copper workpiece and the position to be welded of aluminium bronze workpiece
Filling is fully welded material, completes welding.
Every time before melting solder, first glues and take solder flux, solder flux can remove workpiece and liquid solder seemingly aoxidizes
Object protects workpiece and solder not to be further oxided during heating, outwardly soaks so as to improve solder in base material
Performance.
In the present embodiment, solder is using filament made of L302 material, and solder flux of QJ102 material by being made
Powder.L302 material and the matching of oxygenless copper material and aluminum-bronze material are more preferable.
Wherein, the chemical component table of L302 material is as shown in table 1 below:
Table 1
| Ag | Cu | Zn | Sn | Cd | Si |
| 24-26 | 39-41 | 31-35 | 1.5-2.5 | ≤0.01 | ≤0.05 |
Wherein, the chemical component table of QJ102 material is as shown in table 2 below:
Table 2
| KBF4 | B2O# | KF |
| 21-25 | 33-37 | 40-44 |
In the present embodiment, the heating temperature of gas brazing spray head is 800~860 DEG C, with solder made of L302 material
Cooperate with solder flux made of QJ102 material, the better quality for the soldered fitting being brazed.If the heating temperature of gas brazing spray head
Height is spent, biggish heat can be generated, workpiece is caused to generate deformation.If the heating temperature of gas brazing spray head is too low, can not
By solder fusing.
It is alternatively possible to using contact type thermometric indicator, workpiece position to be welded centre of surface and boundary position into
Whether row thermometric determines the heating temperature of gas brazing spray head at 800~860 DEG C.
Step 204, connector to be brazed are cooled to 400 DEG C, coat 1.5~2h of soldered fitting using alumina silicate fiber felt.
1.5~2h of soldered fitting is coated by using alumina silicate fiber felt, soldered fitting can be kept the temperature, to disappear
Except the stress in soldered fitting.
In the present embodiment, if when soldered fitting temperature is lower than 400 DEG C, step 204 is carried out to soldered fitting, it can be due to
Temperature is too low, so that soldered fitting is also easy to produce crackle.
Step 205, connector to be brazed are cooled to 100~150 DEG C, and it is 10% that soldered fitting, which is placed on citric acid content,
In aqueous citric acid solution, soldered fitting is cleaned.
Soldered fitting is cleaned by using the aqueous citric acid solution that citric acid content is 10%, it can be to avoid solder flux
Residue is to the corrosiveness of soldered fitting, so as to improve the service life of soldered fitting.
The embodiment of the present invention is by using the welding manner of gas brazing by the to be welded of oxygen-free copper workpiece and aluminium bronze workpiece
Socket part position is welded to connect, and uses gas shielded arc welding method to be welded on oxygen-free copper workpiece and aluminium bronze workpiece in the prior art
It compares together, without electric arc, so as to avoid under blow force of arc, the case where causing workpiece to burn hair is stayed in molten bath
It is raw.Simultaneously because temperature when gas brazing needs to be less than the melting temperature of base material, therefore, the heat that when gas brazing generates compared with
It is few, it can reduce the welding deformation amount generated when workpiece welding, to guarantee the welding precision of workpiece.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of welding method of oxygen-free copper workpiece and aluminium bronze workpiece, which is characterized in that the welding method includes:
Preweld cleaning is carried out to oxygen-free copper workpiece and aluminium bronze workpiece respectively；
By after cleaning the oxygen-free copper workpiece and the aluminium bronze workpiece be assembled together；
It takes the welding manner of gas brazing to weld the position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece to connect
It connects, forms soldered fitting.
2. welding method according to claim 1, which is characterized in that described respectively to oxygen-free copper workpiece and aluminium bronze workpiece
Carry out preweld cleaning, comprising:
Remove the oxidation film at the position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece respectively using wire brush；
The position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece is polished respectively using stainless steel wire wheel coarse.
3. welding method according to claim 1, which is characterized in that the oxygen-free copper workpiece and institute by after cleaning
Aluminium bronze workpiece is stated to be assembled together, comprising:
The position to be welded of the oxygen-free copper workpiece is overlapped in the position to be welded of the aluminium bronze workpiece.
4. welding method according to claim 1, which is characterized in that the oxygen-free copper workpiece and institute by after cleaning
Aluminium bronze workpiece is stated to be assembled together, comprising:
The position to be welded of the oxygen-free copper workpiece is sleeved on outside the position to be welded of the aluminium bronze workpiece, or will be described
The position to be welded of aluminium bronze workpiece is sleeved on outside the position to be welded of the oxygen-free copper workpiece.
5. welding method according to claim 1, which is characterized in that the oxygen-free copper workpiece and institute by after cleaning
Aluminium bronze workpiece is stated to be assembled together, comprising:
The position to be welded of the position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece is spaced in the same plane
Setting, and the interval between the position to be welded of the oxygen-free copper workpiece and the position to be welded of the aluminium bronze workpiece is less than
0.5mm。
6. described in any item welding methods according to claim 1~5, which is characterized in that the welding for taking gas brazing
The position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece is welded to connect by mode, comprising:
The first step holds gas brazing spray head and solder, and solder one end is glued and takes solder flux；
Viscous one end for taking solder flux of the solder is placed on the oxygen-free copper workpiece and the aluminium bronze workpiece by second step
Between position to be welded, and using the gas brazing spray head to the viscous one end continuous heating for taking the solder flux of the solder
3~5s, until the viscous part for taking solder flux of the solder is melted completely to the oxygen-free copper workpiece and the aluminium bronze workpiece
Position to be welded between；
Third step repeats the first step and second step, until the position to be welded of the oxygen-free copper workpiece and the aluminium bronze workpiece
Between filling be fully welded material, complete to weld.
7. welding method according to claim 6, which is characterized in that the solder is using filiform made of L302 material
Structure, the solder flux are using powder made of QJ102 material.
8. welding method according to claim 6, which is characterized in that the heating temperature of the gas brazing spray head is 800
~860 DEG C.
9. welding method according to claim 6, which is characterized in that the welding method further include:
400 DEG C are cooled to the soldered fitting, the 1.5~2h of soldered fitting is coated using alumina silicate fiber felt.
10. welding method according to claim 6, which is characterized in that the welding method further include:
100~150 DEG C are cooled to the soldered fitting, the soldered fitting is placed on the lemon that citric acid content is 10%
In aqueous acid, the soldered fitting is cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558653.4A CN110434418A (en) | 2019-06-26 | 2019-06-26 | The welding method of oxygen-free copper workpiece and aluminium bronze workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558653.4A CN110434418A (en) | 2019-06-26 | 2019-06-26 | The welding method of oxygen-free copper workpiece and aluminium bronze workpiece |
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| Publication Number | Publication Date |
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| CN110434418A true CN110434418A (en) | 2019-11-12 |
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| CN201910558653.4A Pending CN110434418A (en) | 2019-06-26 | 2019-06-26 | The welding method of oxygen-free copper workpiece and aluminium bronze workpiece |
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| CN103817451A (en) * | 2014-03-13 | 2014-05-28 | 中国科学院电子学研究所 | Oxygen-free copper composite welding method |
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2019
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|---|---|---|---|---|
| CA2403932C (en) * | 2000-03-29 | 2009-07-07 | Shell Canada Limited | Method of joining metal oilfield tubulars and well provided therewith |
| CN102049623A (en) * | 2010-10-21 | 2011-05-11 | 航天材料及工艺研究所 | Combined welding method for nickel-copper components with different thicknesses and oxygen-free copper substrate |
| EP2732899A1 (en) * | 2012-11-15 | 2014-05-21 | Marsilli & Co. S.P.A. | Method and apparatus for soldering a copper wire on a terminal, particularly for soldering the end of the winding wire of electric coils on a bronze terminal |
| CN103817451A (en) * | 2014-03-13 | 2014-05-28 | 中国科学院电子学研究所 | Oxygen-free copper composite welding method |
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Application publication date: 20191112 |