CN215238719U - Leadless type tin welding wire convenient to welding - Google Patents
Leadless type tin welding wire convenient to welding Download PDFInfo
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- CN215238719U CN215238719U CN202121529462.4U CN202121529462U CN215238719U CN 215238719 U CN215238719 U CN 215238719U CN 202121529462 U CN202121529462 U CN 202121529462U CN 215238719 U CN215238719 U CN 215238719U
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Abstract
The utility model discloses a leadless type soldering tin silk convenient to welding, including three scaling powder sinle silks, first soldering tin layer, second soldering tin layer, scaling powder layer and anti oxidation coating, three in the scaling powder sinle silk is located first soldering tin layer respectively, the cladding of scaling powder layer is in the first soldering tin layer outside, the cladding of second soldering tin layer is in the outside on scaling powder layer, the cladding of anti oxidation coating is in the outside on second soldering tin layer. The utility model discloses the scaling powder sinle silk that sets up and scaling powder layer can take place to melt before first soldering tin layer and second soldering tin layer, avoids tin matter to take place to splash under melting expansion, improves the stability when welding; the first soldering tin layer is made of tin-silver alloy, the second soldering tin layer is made of tin-copper alloy, lead is prevented from being added, pollution and damage to human bodies can be reduced, ductility of soldering tin is effectively improved, and continuous welding operation is facilitated; the third soldering tin layer is made of tin-bismuth alloy, and the melting point of soldering tin can be reduced by the tin-bismuth alloy, so that the working efficiency of soldering is improved.
Description
Technical Field
The utility model relates to a solder wire field especially relates to a leadless type solder wire convenient to welding.
Background
Automobile especially high-grade passenger car, back windshield can possess the heating function in order to prevent frosting, and its silver thick liquid of sintering on glass is as heating element, generates heat through loading the electric current and melts, evaporates frost and the steam of gathering on back windshield, provides good sight for the navigating mate to increase the security of driving. For a long time, the conductive terminal used for the connection circuit between the rear windshield and the rear windshield is soldered by lead-containing non-environment-friendly solder, which has been used for decades, and along with the environmental emphasis of human, the requirement for environment protection is higher and higher, and the lead-containing solder has been gradually replaced.
In the prior art, the lead-free solder wires on the market generally have the defects of higher melting point, low ductility of tin and poor welding quality, and are inconvenient for continuous welding operation; meanwhile, the surface resistance of the solder wire is generally poor, and the solder wire is easy to oxidize and deteriorate, so that the product quality of the solder wire is influenced; in addition, when the soldering equipment clamps and welds the solder wire, the solder wire is easy to loosen during welding due to the smooth surface of the solder wire, thereby affecting the welding precision.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the lead-free tin wire has the advantages of low melting point, good ductility and stable welding quality and is convenient to weld.
In order to achieve the above purpose, the utility model discloses technical scheme as follows: a lead-free solder wire convenient to weld comprises three soldering flux wire cores, a first solder layer, a second solder layer, a soldering flux layer and an anti-oxidation layer, wherein the three soldering flux wire cores are respectively arranged in the first solder layer, every two soldering flux wire cores are close to each other, the soldering flux layer is coated on the outer side of the first solder layer, the second solder layer is coated on the outer side of the soldering flux layer, and the anti-oxidation layer is coated on the outer side of the second solder layer;
the first soldering tin layer is made of tin-silver alloy, the second soldering tin layer is made of tin-copper alloy, the cross section of the anti-oxidation layer is circular, the anti-oxidation layer is provided with a plurality of anti-skid convex strips which are evenly distributed along the circumferential direction, and the tops of the anti-skid convex strips are provided with transition arcs.
By adopting the technical scheme, in the lead-free solder wire convenient to weld, a third solder layer is also arranged between the second solder layer and the anti-oxidation layer, and the third solder layer is made of tin-bismuth alloy.
By adopting the technical scheme, in the lead-free soldering tin wire convenient to solder, the diameters of the three soldering flux wire cores are equal.
By adopting the technical scheme, in the lead-free tin soldering wire convenient to solder, the three soldering flux wire cores are all made of water-soluble soldering flux.
By adopting the technical scheme, in the lead-free solder wire convenient to weld, the diameter of the first solder layer is 0.4-0.6 mm, the thickness of the second solder layer is 0.1-0.3 mm, the thickness of the soldering flux layer is 0.02-0.04 mm, and the thickness of the anti-oxidation layer is 0.05-0.08 mm.
By adopting the technical scheme, in the lead-free solder wire convenient to weld, the thickness of the third solder layer is 0.1-0.2 mm.
By adopting the technical scheme, the number of the anti-skid convex strips is at least eight in the lead-free tin welding wire convenient to weld.
By adopting the technical proposal, the three soldering flux wire cores and the soldering flux layer arranged in the utility model can be melted before the first soldering tin layer and the second soldering tin layer, so that the tin alloy in the first soldering tin layer and the second soldering tin layer is prevented from splashing under the melting expansion effect, and the stability during welding is improved; the first soldering tin layer is made of tin-silver alloy, the second soldering tin layer is made of tin-copper alloy, lead is prevented from being added, pollution and damage to human bodies can be reduced, ductility of soldering tin is effectively improved, and continuous welding operation is facilitated; the third soldering tin layer is made of tin-bismuth alloy, and the melting point of soldering tin can be reduced by the tin-bismuth alloy, so that the working efficiency of welding is improved; the arrangement of the anti-oxidation layer can prevent the surface of the soldering tin wire from being oxidized; the anti-slip convex strips arranged on the surface of the anti-oxidation layer can improve the stability of tin wire clamping of soldering equipment and prevent the tin wire from loosening in the welding process, thereby improving the welding quality of workpieces; the whole welding has the advantages of low melting point, good ductility and stable welding quality, and can be popularized and used.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
fig. 2 is a schematic view of the overall structure of embodiment 2 of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1, the embodiment provides a lead-free solder wire convenient for soldering, which includes three soldering flux cores 3, a first solder layer 1, a second solder layer 2, a soldering flux layer 4 and an anti-oxidation layer 5, wherein the three soldering flux cores 3 are respectively disposed in the first solder layer 1, every two of the three soldering flux cores 3 are close to each other, the soldering flux layer 4 is coated on the outer side of the first solder layer 1, the second solder layer 2 is coated on the outer side of the soldering flux layer 4, and the anti-oxidation layer 5 is coated on the outer side of the second solder layer 2.
The first soldering tin layer 1 is made of tin-silver alloy, the second soldering tin layer 2 is made of tin-copper alloy, the section of the anti-oxidation layer 5 is circular, the anti-oxidation layer 5 is provided with a plurality of anti-skid convex strips 6 which are evenly distributed along the circumferential direction, and the tops of the anti-skid convex strips 6 are provided with transition arcs 60. In this embodiment, the three soldering flux wire cores 3 and the soldering flux layer 4 are arranged to be melted before the first soldering tin layer 1 and the second soldering tin layer 2, so that the tin alloy in the first soldering tin layer 1 and the second soldering tin layer 2 is prevented from splashing under the melting and expansion effects, and the stability during soldering is improved; first soldering tin layer 1 is the tin-silver alloy, and second soldering tin layer 2 is the tin-copper alloy, avoids adding plumbous, and reducible pollution reaches the injury to the human body, effectively improves the ductility of soldering tin, is convenient for carry out continuous welding operation. The anti-oxidation layer 5 is arranged to prevent the surface of the solder wire from being oxidized; the anti-skid convex strips 6 arranged on the surface of the anti-oxidation layer 5 can improve the stability of tin wire clamping of soldering equipment and prevent the tin wire from loosening in the welding process, thereby improving the welding quality of workpieces; the arrangement of the transition arc 60 can prevent the surface of the solder wire from scratching hands, and is practical and convenient.
Further, a third solder layer 7 is arranged between the second solder layer 2 and the anti-oxidation layer 5, and the third solder layer 7 is made of tin-bismuth alloy. In this embodiment, the third solder layer 7 is a tin-bismuth alloy, which can reduce the melting point of solder, thereby improving the working efficiency of soldering.
Furthermore, the diameters of the three flux wire cores 3 are equal.
Furthermore, the three flux wire cores 3 are all made of water-soluble flux.
Further, the diameter of the first solder layer 1 is 0.4-0.6 mm, the thickness of the second solder layer 2 is 0.1-0.3 mm, the thickness of the soldering flux layer 4 is 0.02-0.04 mm, and the thickness of the anti-oxidation layer 5 is 0.05-0.08 mm. In this embodiment, the diameter of the first solder layer 1 is 0.4mm, the thickness of the second solder layer 2 is 0.1mm, the thickness of the flux layer 4 is 0.02mm, and the thickness of the oxidation preventing layer 5 is 0.05 mm.
Further, the thickness of the third solder layer 7 is 0.1 to 0.2 mm. In this example, the thickness of the third solder layer 7 is 0.1 mm.
Furthermore, the number of the anti-skid convex strips 6 is at least eight. In this embodiment, the number of the anti-slip convex strips 6 is twenty, and certainly, the user can set the anti-slip convex strips 6 in different numbers according to actual needs, which is not limited in this embodiment.
Example 2
As shown in fig. 2, the embodiment provides a lead-free solder wire convenient for soldering, which includes three soldering flux cores 3, a first solder layer 1, a second solder layer 2, a soldering flux layer 4 and an anti-oxidation layer 5, wherein the three soldering flux cores 3 are respectively disposed in the first solder layer 1, every two soldering flux cores 3 are close to each other, the soldering flux layer 4 is coated on the outer side of the first solder layer 1, the second solder layer 2 is coated on the outer side of the soldering flux layer 4, and the anti-oxidation layer 5 is coated on the outer side of the second solder layer 2.
The first soldering tin layer 1 is made of tin-silver alloy, the second soldering tin layer 2 is made of tin-copper alloy, the section of the anti-oxidation layer 5 is circular, the anti-oxidation layer 5 is provided with a plurality of anti-skid convex strips 6 which are evenly distributed along the circumferential direction, and the tops of the anti-skid convex strips 6 are provided with transition arcs 60. In this embodiment, the three soldering flux wire cores 3 and the soldering flux layer 4 are arranged to be melted before the first soldering tin layer 1 and the second soldering tin layer 2, so that the tin alloy in the first soldering tin layer 1 and the second soldering tin layer 2 is prevented from splashing under the melting and expansion effects, and the stability during soldering is improved; first soldering tin layer 1 is the tin-silver alloy, and second soldering tin layer 2 is the tin-copper alloy, avoids adding plumbous, and reducible pollution reaches the injury to the human body, effectively improves the ductility of soldering tin, is convenient for carry out continuous welding operation. The anti-oxidation layer 5 is arranged to prevent the surface of the solder wire from being oxidized; the anti-skid convex strips 6 arranged on the surface of the anti-oxidation layer 5 can improve the stability of tin wire clamping of soldering equipment and prevent the tin wire from loosening in the welding process, thereby improving the welding quality of workpieces; the arrangement of the transition arc 60 can prevent the surface of the solder wire from scratching hands, and is practical and convenient.
Furthermore, the diameters of the three flux wire cores 3 are equal.
Furthermore, the three flux wire cores 3 are all made of water-soluble flux.
Further, the diameter of the first solder layer 1 is 0.4-0.6 mm, the thickness of the second solder layer 2 is 0.1-0.3 mm, the thickness of the soldering flux layer 4 is 0.02-0.04 mm, and the thickness of the anti-oxidation layer 5 is 0.05-0.08 mm. In this example, the diameter of the first solder layer 1 was 0.6mm, the thickness of the second solder layer 2 was 0.3mm, the thickness of the flux layer 4 was 0.04mm, and the thickness of the oxidation preventing layer 5 was 0.08 mm.
Furthermore, the number of the anti-skid convex strips 6 is at least eight. In this embodiment, the number of the anti-slip convex strips 6 is twenty, and certainly, the user can set the anti-slip convex strips 6 in different numbers according to actual needs, which is not limited in this embodiment.
By adopting the technical proposal, the three soldering flux wire cores and the soldering flux layer arranged in the utility model can be melted before the first soldering tin layer and the second soldering tin layer, so that the tin alloy in the first soldering tin layer and the second soldering tin layer is prevented from splashing under the melting expansion effect, and the stability during welding is improved; the first soldering tin layer is made of tin-silver alloy, the second soldering tin layer is made of tin-copper alloy, lead is prevented from being added, pollution and damage to human bodies can be reduced, ductility of soldering tin is effectively improved, and continuous welding operation is facilitated; the third soldering tin layer is made of tin-bismuth alloy, and the melting point of soldering tin can be reduced by the tin-bismuth alloy, so that the working efficiency of welding is improved; the arrangement of the anti-oxidation layer can prevent the surface of the soldering tin wire from being oxidized; the anti-slip convex strips arranged on the surface of the anti-oxidation layer can improve the stability of tin wire clamping of soldering equipment and prevent the tin wire from loosening in the welding process, thereby improving the welding quality of workpieces; the whole welding has the advantages of low melting point, good ductility and stable welding quality, and can be popularized and used.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a lead-free type tin welding wire convenient to welding which characterized in that: the soldering flux cable comprises three soldering flux cable cores, a first soldering tin layer, a second soldering tin layer, a soldering flux layer and an anti-oxidation layer, wherein the three soldering flux cable cores are respectively arranged in the first soldering tin layer, every two soldering flux cable cores are close to each other, the soldering flux layer covers the outer side of the first soldering tin layer, the second soldering tin layer covers the outer side of the soldering flux layer, and the anti-oxidation layer covers the outer side of the second soldering tin layer;
the first soldering tin layer is made of tin-silver alloy, the second soldering tin layer is made of tin-copper alloy, the cross section of the anti-oxidation layer is circular, the anti-oxidation layer is provided with a plurality of anti-skid convex strips which are evenly distributed along the circumferential direction, and the tops of the anti-skid convex strips are provided with transition arcs.
2. The lead-free solder wire for facilitating soldering according to claim 1, wherein: and a third soldering tin layer is also arranged between the second soldering tin layer and the anti-oxidation layer, and the third soldering tin layer is a tin-bismuth alloy.
3. The lead-free solder wire for facilitating soldering according to claim 1, wherein: the diameters of the three soldering flux wire cores are equal in size.
4. The lead-free solder wire for facilitating soldering according to claim 1, wherein: the three flux wire cores are all made of water-soluble flux.
5. The lead-free solder wire for facilitating soldering according to claim 1, wherein: the diameter of the first soldering tin layer is 0.4-0.6 mm, the thickness of the second soldering tin layer is 0.1-0.3 mm, the thickness of the soldering flux layer is 0.02-0.04 mm, and the thickness of the anti-oxidation layer is 0.05-0.08 mm.
6. The lead-free solder wire facilitating soldering according to claim 2, wherein: the thickness of the third soldering tin layer is 0.1-0.2 mm.
7. The lead-free solder wire for facilitating soldering according to claim 1, wherein: the number of the anti-skid convex strips is at least eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121529462.4U CN215238719U (en) | 2021-07-06 | 2021-07-06 | Leadless type tin welding wire convenient to welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121529462.4U CN215238719U (en) | 2021-07-06 | 2021-07-06 | Leadless type tin welding wire convenient to welding |
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| Publication Number | Publication Date |
|---|---|
| CN215238719U true CN215238719U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121529462.4U Active CN215238719U (en) | 2021-07-06 | 2021-07-06 | Leadless type tin welding wire convenient to welding |
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| CN (1) | CN215238719U (en) |
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2021
- 2021-07-06 CN CN202121529462.4U patent/CN215238719U/en active Active
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