CN106736007A - Aluminium base solder - Google Patents
Aluminium base solder Download PDFInfo
- Publication number
- CN106736007A CN106736007A CN201611083175.9A CN201611083175A CN106736007A CN 106736007 A CN106736007 A CN 106736007A CN 201611083175 A CN201611083175 A CN 201611083175A CN 106736007 A CN106736007 A CN 106736007A
- Authority
- CN
- China
- Prior art keywords
- aluminium
- base solder
- aluminium base
- calcirm
- fluoride
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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.)
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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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
- B23K35/288—Al as the principal constituent with Sn or Zn
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention proposes a kind of aluminium base solder, is calculated according to percetage by weight, including following raw material is made：Calcirm-fluoride 3~6%, silicon 10~18%, copper 12~18%, tin 1~2%, magnesium 0.4~1.6%, boron 0.03~0.08% and titanium 0.02~0.06%, balance of aluminium.The aluminium base solder have low melting point, high intensity, high tenacity, high corrosion resistance, spreadability high, while suitable for low melting point wrought aluminium alloy and cast aluminium alloy gold the characteristics of.
Description
Technical field
The invention belongs to technical field of soldering materials, and in particular to a kind of aluminium base solder.
Background technology
Since 21st century, with the development of low-carbon economy, popular vehicles lightweight, the becoming for steel with aluminium
Gesture is fairly obvious.Automobile, railcar, passenger train, the car body of bullet train, chassis structure part material, door and window, shelf,
The all useful aluminium manufacture such as part of automobile engine, air-conditioner, radiator, car body panel, wheel hub.Average each automobile needs aluminium
More than 100 kilograms of processed goods, and full aluminium automobile is fast-developing, the high-strength aluminum alloy structure of high speed railway car (bullet train)
Part consumption accounts for the 70% of vehicle total amount of material, and the aluminum alloy junction component on airliner accounts for the 80% of whole machine material.Other traffic
Equipment such as Aeronautics and Astronautics device, the manufacturing industry of various Small Civil vehicles also largely needs various aluminum alloy junction components.Industrial aluminium
In 2009 more than 2,000,000 tons, the only consumption of automobile industry just reaches 1,300,000 tons to the total amount of alloy.Used by the said equipment
In aluminum alloy junction component, about 15~20% aluminum alloy junction component is processed by soldering and constituted, and the soldering according to 1% is average
Consumptive material rate is calculated, and the demand of aluminium base solder is about 3000~4000 tons.
Based on A1-Si eutectic compositions, the eutectic alloy has good wetability, mobility, pricker to Al-Si brazing filler metals
The corrosion resistance and machinability of plumb joint, and soldering joint strength is high, is most widely used a kind of aluminium pricker in aluminium alloy brazing
Material.But Al-Si brazing filler metal fusing points are (eutectic temperature of Al-Si eutectic alloys is 577 DEG C) higher, and brazing temperature exists more during soldering
More than 600 DEG C, close to the solidus temperature of aluminium alloy, easily make mother metal that the phenomenons such as burning, corrosion occur.Secondly, if Si contains
During amount ＞ 15%, a large amount of bulk silicon crystal occur in matrix, the intensity and plasticity of solder are drastically reduced, and are occurred obvious
It is brittle.In some special application scenarios, such as soldering of the aluminum plate-fin heat exchanger of thin-walled, the application of Al-Si brazing filler metals is received
To very big restriction.Brazing temperature is reduced much compared with Al-Si brazing filler metals during Al-Cu-Si brazing filler metal solderings, such as Al86SiCu prickers
The fusion temperature of material is 520-585 DEG C, and brazing temperature is 585-650 DEG C；The fusion temperature of Al66SiCu solders is 525-535
DEG C, brazing temperature is 550-600 DEG C.But material can be made to become fragile and occur during soldering the corrosion to mother metal more than Cu additions, it is difficult to
Obtain the soldered fitting of function admirable.
The content of the invention
The present invention proposes a kind of aluminium base solder, the aluminium base solder have low melting point, high intensity, high tenacity, high corrosion resistance,
Spreadability high, while suitable for low melting point wrought aluminium alloy and cast aluminium alloy gold the characteristics of.
The technical proposal of the invention is realized in this way：
A kind of aluminium base solder, calculates according to percetage by weight, including following raw material is made：
Calcirm-fluoride 3~6%, silicon 10~18%, copper 12~18%, tin 1~2%, magnesium 0.4~1.6%, boron 0.03~
0.08% with titanium 0.02~0.06%, balance of aluminium.
Further, calculated according to percetage by weight, including following raw material is made：
Calcirm-fluoride 4~5%, silicon 12~17%, copper 14~16%, tin 1.5~2%, magnesium 0.6~1.2%, boron 0.04~
0.07% with titanium 0.03~0.05%, balance of aluminium.
Further, calculated according to percetage by weight, including following raw material is made：
Calcirm-fluoride 4.6%, silicon 15%, copper 15%, tin 1.8%, magnesium 1%, boron 0.06% and titanium 0.04%, balance of aluminium.
Further, calculated according to percetage by weight, including following raw material is made：
Calcirm-fluoride 3%, silicon 18%, copper 16%, tin 2%, magnesium 1.6%, boron 0.08% and titanium 0.06%, balance of aluminium.
Further, calculated according to percetage by weight, including following raw material is made：
Calcirm-fluoride 6%, silicon 12%, copper 12%, tin 1%, magnesium 0.4%, boron 0.03% and titanium 0.02%, balance of aluminium.
A kind of preparation method of aluminium base solder, comprises the following steps：
1) raw material is configured by said ratio, dusts, mixes, feeding smelting furnace is smelted；
2) cooling, hydrostatic profile；3) extrude；4) wire drawing；5) cut off.
Beneficial effects of the present invention：
1st, alloy system is Al-Si-Cu-Sn quaternary alloys composition, and fusion temperature scope is 480~510 DEG C, brazing temperature
It is 520 DEG C~530 DEG C silk materials that can be made into diameter 1.6~4.0.It is different according to work-hardening capacity, silk material diameter is different and have
Changed.
2nd, solder of the invention has intensity higher, coordinates QJ201 brazing flux soldering LF21 aluminium alloys, shearing strength of joint
More than 100MPa, present invention gained solder is applied to the soldering of aluminium alloy of the solidus temperature more than 520 DEG C, applicable soldering
Method has gas brazing, induction brazing, furnace brazing and furnace brazing etc..
3rd, present invention face addition calcirm-fluoride on the basis of Al-Cu-Si can not only reduce fusing point, solve Si contents ＞
When 15%, a large amount of bulk silicon crystal occur in matrix, the intensity and plasticity of solder are drastically reduced, occur substantially brittle
Problem.Boron is added with titanium can not only play a part of crystal grain thinning, and coordinate with calcirm-fluoride, occur when solving soldering
To the problem of the corrosion of mother metal.
Specific embodiment
Embodiment 1
A kind of aluminium base solder, calculates according to percetage by weight, including following raw material is made：
Calcirm-fluoride 4.6%, silicon 15%, copper 15%, tin 1.8%, magnesium 1%, boron 0.06% and titanium 0.04%, balance of aluminium.
Preparation method, comprises the following steps：
1) raw material is configured by said ratio, dusts, mixes, feeding smelting furnace is smelted；
2) cooling, hydrostatic profile；3) extrude；4) wire drawing；5) cut off.
Experiment detection is carried out by the detection method of national standard to aluminium base solder obtained above silk, the properties for obtaining
Index is：
506.6 DEG C of liquidus temperature, 478.2 DEG C of solidus temperature；Solder tensile strength sigma b=122MPa in itself；Work as mother
When material is 7003, brazing flux is QJ202,520 DEG C~530 DEG C of brazing temperature, brazed seam shearing strength is 126MPa, impact flexibility ak=
38KJ/㎡。
Embodiment 2
A kind of aluminium base solder, calculates according to percetage by weight, including following raw material is made：
Calcirm-fluoride 3%, silicon 18%, copper 16%, tin 2%, magnesium 1.6%, boron 0.08% and titanium 0.06%, balance of aluminium.
Preparation method, comprises the following steps：
1) raw material is configured by said ratio, dusts, mixes, feeding smelting furnace is smelted；
2) cooling, hydrostatic profile；3) extrude；4) wire drawing；5) cut off.
Experiment detection is carried out by the detection method of national standard to aluminium base solder obtained above silk, the properties for obtaining
Index is：
508.2 DEG C of liquidus temperature, 479.4 DEG C of solidus temperature；Solder tensile strength sigma b=118MPa in itself；Work as mother
When material is 7003, brazing flux is QJ202,520 DEG C~530 DEG C of brazing temperature, brazed seam shearing strength is 126MPa, impact flexibility ak=
39KJ/㎡。
Embodiment 3
A kind of aluminium base solder, calculates according to percetage by weight, including following raw material is made：
Calcirm-fluoride 6%, silicon 12%, copper 12%, tin 1%, magnesium 0.4%, boron 0.03% and titanium 0.02%, balance of aluminium.
Preparation method, comprises the following steps：
1) raw material is configured by said ratio, dusts, mixes, feeding smelting furnace is smelted；
2) cooling, hydrostatic profile；3) extrude；4) wire drawing；5) cut off.
Experiment detection is carried out by the detection method of national standard to aluminium base solder obtained above silk, the properties for obtaining
Index is：
510.2 DEG C of liquidus temperature, 481.1 DEG C of solidus temperature；Solder tensile strength sigma b=119MPa in itself；Work as mother
When material is 7003, brazing flux is QJ202,520 DEG C~530 DEG C of brazing temperature, brazed seam shearing strength is 124MPa, impact flexibility ak=
37KJ/㎡。
Embodiment 4
A kind of aluminium base solder, calculates according to percetage by weight, including following raw material is made：
Calcirm-fluoride 3%, silicon 16%, copper 18%, tin 1.3%, magnesium 1.2%, boron 0.08% and titanium 0.05%, balance of aluminium.
Preparation method, comprises the following steps：
1) raw material is configured by said ratio, dusts, mixes, feeding smelting furnace is smelted；
2) cooling, hydrostatic profile；3) extrude；4) wire drawing；5) cut off.
Experiment detection is carried out by the detection method of national standard to aluminium base solder obtained above silk, the properties for obtaining
Index is：
511.5 DEG C of liquidus temperature, 481.9 DEG C of solidus temperature；Solder tensile strength sigma b=122MPa in itself；Work as mother
When material is 7003, brazing flux is QJ202,520 DEG C~530 DEG C of brazing temperature, brazed seam shearing strength is 127MPa, impact flexibility ak=
39KJ/㎡。
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (5)
1. a kind of aluminium base solder, it is characterised in that calculated according to percetage by weight, including following raw material is made：
Calcirm-fluoride 3~6%, silicon 10~18%, copper 12~18%, tin 1~2%, magnesium 0.4~1.6%, boron 0.03~0.08% with
Titanium 0.02~0.06%, balance of aluminium.
2. aluminium base solder according to claim 1, it is characterised in that calculated according to percetage by weight, including following raw material
It is made：
Calcirm-fluoride 4~5%, silicon 12~17%, copper 14~16%, tin 1.5~2%, magnesium 0.6~1.2%, boron 0.04~0.07%
With titanium 0.03~0.05%, balance of aluminium.
3. aluminium base solder according to claim 1 and 2, it is characterised in that calculated according to percetage by weight, including following original
Material is made：
Calcirm-fluoride 4.6%, silicon 15%, copper 15%, tin 1.8%, magnesium 1%, boron 0.06% and titanium 0.04%, balance of aluminium.
4. aluminium base solder according to claim 1, it is characterised in that calculated according to percetage by weight, including following raw material
It is made：
Calcirm-fluoride 3%, silicon 18%, copper 16%, tin 2%, magnesium 1.6%, boron 0.08% and titanium 0.06%, balance of aluminium.
5. aluminium base solder according to claim 1, it is characterised in that calculated according to percetage by weight, including following raw material
It is made：
Calcirm-fluoride 6%, silicon 12%, copper 12%, tin 1%, magnesium 0.4%, boron 0.03% and titanium 0.02%, balance of aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083175.9A CN106736007A (en) | 2016-11-30 | 2016-11-30 | Aluminium base solder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083175.9A CN106736007A (en) | 2016-11-30 | 2016-11-30 | Aluminium base solder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106736007A true CN106736007A (en) | 2017-05-31 |
Family
ID=58898229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611083175.9A Pending CN106736007A (en) | 2016-11-30 | 2016-11-30 | Aluminium base solder |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125167A (en) * | 1994-12-20 | 1996-06-26 | 罗启昌 | Method for cast aluminium braze-welding |
| US6152354A (en) * | 1997-04-09 | 2000-11-28 | Kaiser Aluminum & Chemical Corporation | Brazing filler alloy containing calcium |
| CN101323065A (en) * | 2008-07-08 | 2008-12-17 | 郑州机械研究所 | Self-fluxing aluminum solder and method for preparing the same |
| CN102146540A (en) * | 2010-02-08 | 2011-08-10 | 株式会社神户制钢所 | Aluminum alloy clad member adopted to heat exchanger, and core material for the same |
| CN102152024A (en) * | 2011-04-28 | 2011-08-17 | 浙江大学 | High-strength aluminum alloy brazing filler metal with melting point being lower than 500 DEG C and preparation method thereof |
| CN105234581A (en) * | 2015-11-12 | 2016-01-13 | 镇江市锶达合金材料有限公司 | High-moisture brazing material |
-
2016
- 2016-11-30 CN CN201611083175.9A patent/CN106736007A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125167A (en) * | 1994-12-20 | 1996-06-26 | 罗启昌 | Method for cast aluminium braze-welding |
| US6152354A (en) * | 1997-04-09 | 2000-11-28 | Kaiser Aluminum & Chemical Corporation | Brazing filler alloy containing calcium |
| CN101323065A (en) * | 2008-07-08 | 2008-12-17 | 郑州机械研究所 | Self-fluxing aluminum solder and method for preparing the same |
| CN102146540A (en) * | 2010-02-08 | 2011-08-10 | 株式会社神户制钢所 | Aluminum alloy clad member adopted to heat exchanger, and core material for the same |
| CN102152024A (en) * | 2011-04-28 | 2011-08-17 | 浙江大学 | High-strength aluminum alloy brazing filler metal with melting point being lower than 500 DEG C and preparation method thereof |
| CN105234581A (en) * | 2015-11-12 | 2016-01-13 | 镇江市锶达合金材料有限公司 | High-moisture brazing material |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |