Solder wire for automatic soldering machine and production method thereof

A production method and automatic welding technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve problems such as poor welding of solder wire, achieve the effect of reducing rosin spatter, reducing the amount of formation, and improving uniformity

Inactive Publication Date: 2021-05-11
SHENZHEN XINGHONGTAI TIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problem that the solder wire used in the automatic welding of existing machines is prone to poor welding, this application provides a solder wire for automatic soldering machines and its production method

Method used

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  • Solder wire for automatic soldering machine and production method thereof
  • Solder wire for automatic soldering machine and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for producing solder wire for an automatic soldering machine, comprising the following steps:

[0043] S1. Fuse Dy and Ge metals of equal mass at 700°C for 4 hours, then add Bi metal of equal mass, and fuse at 700°C for 4 hours to obtain a ternary master alloy;

[0044] S2. Fusion 99.0kg tin and 1kg copper at 700°C for 4 hours;

[0045] S3. Add 0.0001kg of the ternary master alloy obtained in step S1 to the main alloy obtained in step S2, stir at 390°C and 300rpm / min for 2h, let stand and cool for 48h, then heat up to 390°C and stir at 300rpm / min for 2h, Casting into tin rods to obtain solder alloys for automatic soldering machines;

[0046] S4. Squeeze the tin bar obtained in step S3, and add flux. The parameters of the extrusion operation are: the temperature of the rosin barrel is set at 125°C, the temperature of the rosin conduit is set at 130°C, and the extrusion speed is set at One tin bar for 5 minutes, and the temperature of the front beam of the extr...

Embodiment 2

[0049] A method for producing solder wire for an automatic soldering machine, comprising the following steps:

[0050] S1. Fuse Er and In metals of equal mass at 1400°C for 2 hours, then add Bi metal of equal mass, and fuse at 1400°C for 2 hours to obtain a ternary master alloy;

[0051] S2. Fusion 99.5kg tin and 0.5kg copper at 1400°C for 2 hours;

[0052] S3. Add 0.05kg of the ternary master alloy obtained in step S1 to the main alloy obtained in step S2, stir at 410°C and 500rpm / min for 1h, let stand and cool for 24h, then heat up to 410°C and stir at 500rpm / min for 1h, Casting into tin rods to obtain solder alloys for automatic soldering machines;

[0053] S4. Squeeze the tin bar obtained in step S3, and add flux. The parameters of the extrusion operation are: the temperature of the rosin barrel is set at 140°C, the temperature of the rosin conduit is set at 145°C, and the extrusion speed is set at One tin bar for 7 minutes, and the temperature of the front beam of the e...

Embodiment 3

[0056] A method for producing solder wire for an automatic soldering machine, comprising the following steps:

[0057] S1. Fuse Dy and Ce metals of equal mass at 800°C for 3.5h, then add Si element of equal mass, and fuse at 800°C for 3.5h to obtain a ternary master alloy; finally add Bi metal of equal mass, and then Fusion at 800°C for 3.5 hours to obtain a quaternary master alloy;

[0058] S2. Fusion 98.8kg tin, 0.4kg silver and 0.8kg copper at 800°C for 3.5h;

[0059] S3. Add 0.0005kg of the quaternary master alloy obtained in step S1 to the main alloy obtained in step S2, stir at 395°C and 450rpm / min for 1.8h, let it cool for 30h, then heat up to 395°C and stir at 450rpm / min for 1.8 h, casting into a tin bar to obtain a solder alloy for an automatic soldering machine;

[0060] S4. Squeeze the tin bar obtained in step S3, and add flux. The parameters of the extrusion operation are: the temperature of the rosin barrel is set at 130°C, the temperature of the rosin conduit i...

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Abstract

The invention discloses a solder wire for an automatic soldering machine and a production method thereof, and belongs to the field of welding materials. The production method comprises the following steps that trace elements are melted or fused, wherein the trace elements are selected from one or more of In, Ge, Co, Bi, Ce, Si, Er, Dy, P and Ga; a main alloy is fused; the trace elements are added into the main alloy, and casting is carried out to form a tin bar; the tin bar is extruded, scaling powder is added, and the extrusion operation parameters are that the temperature of a rosin barrel is set to be 125-140 DEG C, the temperature of a rosin guide pipe is set to be 130-145 DEG C, the extrusion speed is set to be 5-7 minutes for one tin bar, and the temperature of a front cross beam is set to be 60-110 DEG C; and wire drawing treatment is carried out on an extruded product at 50-60 DEG C to obtain the solder wire. The prepared solder wire has good mechanical strength, wettability and weldability, in the welding process, rosin splashing is little, the welding spot firmness is high, the forming amount of oxidizing slag is little, and the solder wire is green and environment-friendly.

Description

technical field [0001] The present application relates to the field of soldering materials, in particular to a solder wire for an automatic soldering machine and a production method thereof. Background technique [0002] The linear solder used in the welding of standard electronic components is called solder wire. The solder wire is a tin alloy wire with a certain length and diameter. It can be used in conjunction with an electric soldering iron in the welding of electronic components. Solder wire is composed of two parts: solder and additives. Solder is a metal solder with a low melting point, mainly referring to tin-based alloys. The auxiliary material to ensure the smooth progress of the welding process is usually a mixture of rosin as the main component, which is evenly poured into the middle part of the tin-based alloy, and finally forms a solder wire through extrusion and wire drawing processes. [0003] With the development of industry and technology, manual solderin...

Claims

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Application Information

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IPC IPC(8): B23K35/26B23K35/40
CPCB23K35/262B23K35/40
Inventor 邢璧元王寿银王超邢鸿伟
Owner SHENZHEN XINGHONGTAI TIN
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