CN106112306A - A kind of medicated core solder with moistening leading role and preparation method thereof - Google Patents
A kind of medicated core solder with moistening leading role and preparation method thereof Download PDFInfo
- Publication number
- CN106112306A CN106112306A CN201610749012.3A CN201610749012A CN106112306A CN 106112306 A CN106112306 A CN 106112306A CN 201610749012 A CN201610749012 A CN 201610749012A CN 106112306 A CN106112306 A CN 106112306A
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- CN
- China
- Prior art keywords
- solder
- brazing
- medicated core
- brazing flux
- thickness
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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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0272—Rods, electrodes, wires with more than one layer of coating or sheathing material
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0277—Rods, electrodes, wires of non-circular cross-section
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of medicated core solder with moistening leading role, including brazing flux inner core, the outer surface of brazing flux inner core is coated with tin layers and matrix solder layer successively, the circular in cross-section of the medicated core solder after molding or polygon.A diameter of the 0.01 of brazing flux inner core～20mm, the thickness of tin layers is 0.01～20mm, and the thickness of matrix solder layer is 0.01～20mm.During preparation, stannum band and the brazing filler metal alloy band of certain size are put into and carried out composite rolling in finishing rolling mill, brazing filler metal alloy surface is made to form tin layers in uniform thickness, then the stannum of brazing filler metal alloy band is faced up, be made into the medicated core solder including brazing flux and tin layers through operations such as the U-shaped rolling of multiple tracks, powder feeding, drawing, alignments.Preparation method energy-conserving and environment-protective of the present invention, the solder Theil indices height of preparation and tin thickness uniformity, beautiful appearance, the utilization rate of stannum is high；This medicated core solder carries brazing flux simultaneously, brazing process achieves brazing flux automatic, accurate, quantitatively add.
Description
Technical field
The present invention relates to welding solder, especially relate to a kind of medicated core solder with moistening leading role, the present invention
Further relate to the preparation method of this medicated core solder.
Background technology
Liquid metal all belongs to viscous liquid, and its mobile performance can be weighed by the viscosity of liquid metal.Liquid metal viscosity
The biggest, then its mobility is the poorest.And the degree of superheat of viscosity and liquid metal is inversely proportional to.Therefore, when brazing temperature one timing, solder
Fusion temperature the lowest, then the degree of superheat of liquid solder is the biggest, thus causes the viscosity of liquid solder to reduce, mobility strengthen.
During the fusing temperature rise of solder, the degree of superheat reduces, and viscosity increases, and mobility weakens.
Silver-base solder fusing point is moderate, soldering processes performance is superior, has good bonding strength, electric conductivity and corrosion-resistant
Property, it is widely used in industries such as machinery, household electrical appliances, instruments.The main alloy element of silver solder is Ag, Cu, Zn, is full
Foot different performance requirement, is generally additionally added the low melting point elements such as Sn, Cd.The silver-base solder containing cadmium, compared with cadmium-free silver-base solder, has
There are lower solid-liquid liquidus temperature, good soldering processes performance, are widely applied in a very long time, but cadmium
It is toxic element, the mankind are had significant damage.Silver-base solder adds Sn element, solder fusing point can be significantly reduced, change
Its wettability kind, it is nontoxic to add tin element, is increasingly becoming the replacement solder containing cadmium silver-base solder.And tradition AgCuZnSn pricker
Material, adds Sn element by distribution in AgCuZn solder alloy, then use melting, cast, roll, extrude, drawing
Producing etc. operation, the solder of processing mainly has BAg25CuZnSn, BAg30CuZnSn, BAg40CuZnSn,
BAg45CuZnSn, BAg56CuZnSn etc., meet RoHs and WEEE command request.But the AgCuZnSn solder that said method produces
In Sn content low, otherwise its plasticity can significantly reduce, and easily becomes fragile, it is difficult to by conventional processing method molding.
Copper base solder main alloy element is Cu, meets different performance requirement, is generally additionally added the elements such as Zn, Sn, P, molten
Point is higher, adds Sn element and can significantly reduce solder fusing point, improve its wettability in copper base solder.With silver-base solder one
Sample, tradition CuZnSn solder, in CuZn solder alloy, add Sn element by distribution, then use melting, cast, roll
The operations such as system, extruding, drawing produce, and the Sn content in the CuZnSn solder that this method produces is low, and such as HS221, stannum contains
Amount only 1%, otherwise its plasticity can reduce, and solder is difficult to shape.
Summary of the invention
It is an object of the invention to provide a kind of joint filling, have excellent formability and carry brazing flux has moistening leading role
Medicated core solder, the present invention also provides for the preparation method of this medicated core solder.
For achieving the above object, the present invention can take following technical proposals:
The medicated core solder with moistening leading role of the present invention, including brazing flux inner core, the outer surface of described brazing flux inner core
It is coated with tin layers and matrix solder layer successively, the circular in cross-section of the medicated core solder after molding or polygon.
A diameter of the 0.01～20mm of described brazing flux inner core, the thickness of described tin layers is 0.01～20mm, described matrix pricker
The thickness of the bed of material is 0.01～20mm.
Described brazing flux inner core accounts for the 0.001 ~ 50% of medicated core solder gross weight.
Described matrix solder layer is silver-base solder or copper base solder.
The preparation method of the medicated core solder that the present invention has moistening leading role is as follows:
Stannum band and the brazing filler metal alloy band of certain size are put into and carried out composite rolling in finishing rolling mill, makes brazing filler metal alloy surface be formed
Tin layers in uniform thickness, then faces up the stannum of brazing filler metal alloy band, through works such as the U-shaped rolling of multiple tracks, powder feeding, drawing, alignments
Sequence is made into the medicated core solder including brazing flux and tin layers.
It is an advantage of the current invention that:
Relative to tradition melting, cast, roll, extrude, money base that the operation such as drawing produces or cuprio containing tin solder, the present invention's
Medicated core solder Theil indices is high and is accurately controlled, and in brazing process, in this medicated core solder, first brazing flux melts, low melting point tin therewith
Sprawl rapidly and come, treat that high-melting-point brazing filler metal alloy is completely melt to be filled up completely with the region that low melting point tin is sprawled, and send out with stannum
Raw solid solution combines.Compared with traditional solder, this solder wetting, gap filling performance are greatly improved；The present invention uses composite rolling
Method deposits one layer of stannum on body solder surface, uses plating, hot-dip, thermal spraying, chemical plating relative to brazing filler metal alloy surface
Depositing tin layers, more energy-conserving and environment-protective Deng traditional approach, the solder Theil indices height of preparation and tin thickness uniformity, molding is beautiful
Seeing, the utilization rate of stannum is higher；This medicated core solder carries brazing flux simultaneously, achieves the automatic, accurate, quantitative of brazing flux in brazing process
Add.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As it is shown in figure 1, the medicated core solder with moistening leading role of the present invention, including brazing flux inner core 1, in brazing flux
The outer surface of core 1 is coated with tin layers 2 and matrix solder layer 3 successively, the circular in cross-section or polygon of the medicated core solder after molding
Shape.A diameter of the 0.01～20mm of the brazing flux inner core 1 of the present invention, the thickness of tin layers 2 is 0.01～20mm, matrix solder layer 3
Thickness is 0.01～20mm.
The diameter of brazing flux inner core determines the content of brazing flux in medicated core solder, holds in brazed copper and the oxide-film such as copper alloy, ferrum
During the metal easily removed, brazing flux inner core diameter is less, can be 0.01～4mm；At oxide-films such as soldering rustless steel, hard alloys not
During the metal easily removed, brazing flux inner core diameter is relatively big, can be 1～20mm.The thickness of tin layers decides the joint filling of solder, for
The soldering of tubular structure, tin layers is thicker, can be 0.1～20mm；For the soldering of planar structure, tin layers is relatively thin, can be 0.01～
2mm.The thickness of matrix solder layer is relevant with joint filling size.
During preparation, stannum band and the brazing filler metal alloy band of certain size are put into and carried out composite rolling in finishing rolling mill, makes solder
Alloy surface forms tin layers in uniform thickness, is then faced up by the stannum of brazing filler metal alloy band, through the U-shaped rolling of multiple tracks, powder feeding, draws
Pull out, the operation such as alignment is made into the medicated core solder including brazing flux and tin layers.
Matrix solder can use silver-base solder or copper base solder, and brazing flux is general brazing flux.
Preparation method and its technique effect of medicated core solder of the present invention is further illustrated below by specific embodiment.
Embodiment 1
Matrix brazing filler metal alloy can be selected for the BAg25CuZn alloy strip of thickness 0.2mm, and stannum tape thickness is 0.1mm, many through finishing rolling mill
Road rolling forms tin thickness 0.02mm, the BAgCuZnSn brazing filler metal alloy band of matrix solder layer 3 thickness 0.18mm, medicated core brazing flux
Selecting FB102, surface is covered by (strip brazing material alloy is through operations such as multiple tracks rolling, powder feeding, drawing, alignments) the most according to a conventional method
The medicated core solder of diameter 2mm made by the brazing filler metal alloy band of stannum.According to standard GB/T/T 11364-2008, " solder wetting tries
Proved recipe method ", the solder of matrix solder and preparation carries out wettability contrast test.The solder 200mg of preparation is placed in 40mm ×
40mm, thickness are the Q235 carbon steel sheet central authorities of 2mm, use and cover matrix solder with the FB102 brazing flux preparing solder equal in quality,
Brazing flux plus matrix solder weight be 200mg, be placed in 40mm × 40mm, thickness be 2mm Q235 carbon steel sheet central authorities.Distinguished
Put in RSL-5 moistening stove and heat, after brazing filler metal melts, be incubated 40～50 s, clean up after room temperature natural cooling, Jing Guoji
The solder wetting area calculating preparation is almost 2 times of matrix solder.Matrix compared by medicated core solder prepared by the result surface present invention
Solder wetting area is significantly increased.
Embodiment 2
The BAg30CuZn alloy strip that matrix brazing filler metal alloy selects thickness to be 0.2mm, stannum tape thickness is 0.1mm, many through finishing rolling mill
The BAgCuZnSn brazing filler metal alloy band that road rolling formation tin thickness is 0.01mm, brazing filler metal alloy layer thickness is 0.18mm, then presses
The brazing filler metal alloy band system of stannum is covered on surface by conventional method (strip brazing material alloy is through operations such as multiple tracks rolling, powder feeding, drawing, alignments)
Becoming the medicated core solder of a diameter of 2mm, medicated core brazing flux selects FB102.According to standard GB/T/T 11364-2008 " solder wetting
Property test method ", the solder of matrix solder and preparation carries out wettability contrast test.The solder 200mg of preparation is placed in 40mm
× 40mm, thickness are the Q235 carbon steel sheet central authorities of 2mm, use and cover matrix pricker with the FB102 brazing flux preparing solder equal in quality
Material, brazing flux plus matrix solder weight be 200mg, be placed in 40mm × 40mm, thickness be 2mm Q235 carbon steel sheet central authorities.By it
It is respectively put in RSL-5 moistening stove heating, after brazing filler metal melts, is incubated 40～50 s, cleans up after room temperature natural cooling, warp
The solder wetting area crossing calculating preparation is almost 1.8 times of matrix solder.Medicated core solder phase prepared by the result surface present invention
It is significantly increased than matrix solder wetting area.
Embodiment 3
The BAg45CuZn alloy strip that matrix brazing filler metal alloy selects thickness to be 0.2mm, stannum tape thickness is 0.1mm, many through finishing rolling mill
The BAgCuZnSn brazing filler metal alloy band that road rolling formation tin thickness is 0.03mm, brazing filler metal alloy layer thickness is 0.18mm, then presses
The brazing filler metal alloy band system of stannum is covered on surface by conventional method (strip brazing material alloy is through operations such as multiple tracks rolling, powder feeding, drawing, alignments)
Becoming the medicated core solder of a diameter of 2mm, medicated core brazing flux selects FB102.According to standard GB/T/T 11364-2008 " solder wetting
Property test method ", the solder of matrix solder and preparation carries out wettability contrast test.The solder 200mg of preparation is placed in 40mm
× 40mm, thickness are the Q235 carbon steel sheet central authorities of 2mm, use and cover matrix pricker with the FB102 brazing flux preparing solder equal in quality
Material, brazing flux plus matrix solder weight be 200mg, be placed in 40mm × 40mm, thickness be 2mm Q235 carbon steel sheet central authorities.By it
It is respectively put in RSL-5 moistening stove heating, after brazing filler metal melts, is incubated 40～50 s, cleans up after room temperature natural cooling, warp
The solder wetting area crossing calculating preparation is almost 1.7 times of matrix solder.Medicated core solder phase prepared by the result surface present invention
Substantially increase than matrix solder wetting area.
Embodiment 4
The BCu62Zn alloy strip that matrix brazing filler metal alloy selects thickness to be 0.2mm, stannum tape thickness is 0.1mm, through finishing rolling mill multiple tracks
The BCuZnSn brazing filler metal alloy band that rolling formation tin thickness is 0.04mm, brazing filler metal alloy layer thickness is 0.18mm, the most routinely
Surface is covered the brazing filler metal alloy band of stannum and is made directly by method (strip brazing material alloy is through operations such as multiple tracks rolling, powder feeding, drawing, alignments)
Footpath is the medicated core solder of 2mm, and medicated core brazing flux selects YJ2.According to standard GB/T/T 11364-2008, " solder wetting is tested
Method ", the solder of matrix solder and preparation carries out wettability contrast test.The solder 200mg of preparation is placed in 40mm × 40mm,
Thickness is the Q235 carbon steel sheet central authorities of 2mm, uses and covers matrix solder with the YJ2 brazing flux preparing solder equal in quality, and brazing flux adds
Upper matrix solder weight is 200mg, be placed in 40mm × 40mm, thickness be 2mm Q235 carbon steel sheet central authorities.It is respectively put into
RSL-5 moistening stove heats, after brazing filler metal melts, is incubated 40～50 s, cleans up after room temperature natural cooling, through calculating, system
Standby solder wetting area is almost 1.5 times of matrix solder.Matrix pricker compared by medicated core solder prepared by the result surface present invention
Material wetting areas is significantly increased.
Embodiment 5
The BCu60Zn alloy strip that matrix brazing filler metal alloy selects thickness to be 0.2mm, stannum tape thickness is 0.1mm, through finishing rolling mill multiple tracks
The BCuZnSn brazing filler metal alloy band that rolling formation tin thickness is 0.05mm, brazing filler metal alloy layer thickness is 0.18mm, the most routinely
Surface is covered the brazing filler metal alloy band of stannum and is made directly by method (strip brazing material alloy is through operations such as multiple tracks rolling, powder feeding, drawing, alignments)
Footpath is the medicated core solder of 2mm, and medicated core brazing flux selects YJ2.According to standard GB/T/T 11364-2008, " solder wetting is tested
Method ", the solder of matrix solder and preparation carries out wettability contrast test.The solder 200mg of preparation is placed in 40mm × 40mm,
Thickness is the Q235 carbon steel sheet central authorities of 2mm, uses and covers matrix solder with the YJ2 brazing flux preparing solder equal in quality, and brazing flux adds
Upper matrix solder weight is 200mg, be placed in 40mm × 40mm, thickness be 2mm Q235 carbon steel sheet central authorities.It is respectively put into
RSL-5 moistening stove heats, after brazing filler metal melts, is incubated 40～50 s, cleans up after room temperature natural cooling, through calculating, system
Standby solder wetting area is almost 1.3 times of matrix solder.Matrix pricker compared by medicated core solder prepared by the result surface present invention
Material wetting areas is significantly increased.
Claims (5)
1. a medicated core solder with moistening leading role, it is characterised in that: include brazing flux inner core (1), described brazing flux inner core
(1) outer surface is coated with tin layers (2) and matrix solder layer (3) successively, the circular in cross-section of the medicated core solder after molding or
Polygon.
The medicated core solder with moistening leading role the most according to claim 1, it is characterised in that: described brazing flux inner core
(1) a diameter of 0.01～20mm, the thickness of described tin layers (2) is 0.01～20mm, and the thickness of described matrix solder layer (3) is
0.01～20mm.
The medicated core solder with moistening leading role the most according to claim 1 and 2, it is characterised in that: in described brazing flux
Core accounts for the 0.001 ~ 50% of medicated core solder gross weight.
The medicated core solder with moistening leading role the most according to claim 1 and 2, it is characterised in that: described matrix pricker
The bed of material (3) is silver-base solder or copper base solder.
5. the preparation method of the medicated core solder described in claim 1 with moistening leading role is as follows:
Stannum band and the brazing filler metal alloy band of certain size are put into and carried out composite rolling in finishing rolling mill, makes brazing filler metal alloy surface be formed
Tin layers in uniform thickness, then faces up the stannum of brazing filler metal alloy band, through operations such as the U-shaped rolling of multiple tracks, powder feeding, drawing, alignments
It is made into the medicated core solder including brazing flux and tin layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749012.3A CN106112306A (en) | 2016-08-30 | 2016-08-30 | A kind of medicated core solder with moistening leading role and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749012.3A CN106112306A (en) | 2016-08-30 | 2016-08-30 | A kind of medicated core solder with moistening leading role and preparation method thereof |
Publications (1)
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| CN106112306A true CN106112306A (en) | 2016-11-16 |
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| CN201610749012.3A Pending CN106112306A (en) | 2016-08-30 | 2016-08-30 | A kind of medicated core solder with moistening leading role and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108326474A (en) * | 2018-02-07 | 2018-07-27 | 郑州机械研究所有限公司 | A kind of preparation method of the tin plating medicine core silver solder in surface layer |
| CN113579555A (en) * | 2021-06-30 | 2021-11-02 | 郑州机械研究所有限公司 | Zinc-aluminum flux-cored brazing filler metal for copper-aluminum brazing and preparation method thereof |
| CN113732559A (en) * | 2021-09-22 | 2021-12-03 | 郑州机械研究所有限公司 | Composite brazing filler metal and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108326474A (en) * | 2018-02-07 | 2018-07-27 | 郑州机械研究所有限公司 | A kind of preparation method of the tin plating medicine core silver solder in surface layer |
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| CN113579555A (en) * | 2021-06-30 | 2021-11-02 | 郑州机械研究所有限公司 | Zinc-aluminum flux-cored brazing filler metal for copper-aluminum brazing and preparation method thereof |
| CN113732559A (en) * | 2021-09-22 | 2021-12-03 | 郑州机械研究所有限公司 | Composite brazing filler metal and preparation method thereof |
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Application publication date: 20161116 |