Lead-free solder
A lead-free solder and instrument technology, used in welding/cutting media/materials, welding media, welding equipment, etc., can solve the problems of lead-free solder, such as decreased stretchability, poor workability, and easy oxidation.
Inactive Publication Date: 2003-02-26
郴州金箭焊料有限公司
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Problems solved by technology
The second such lead-free solder consists essentially of the following components: 2-10% by weight of Zn, 10-30% by weight of Bi; 0.05-2% by weight of Ag, optionally containing 0.001-1% by weight Bi; the ...
Method used
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Embodiment 1
[0034] Example 1: B is 2.5-3% Cu, C is 0.5-1.0% antimony, 0.8-1.2% In, and 1.8-2.0% Ag.
Embodiment 2
[0035] Example 2: B is 1.0-2.5% Cu, C is 0.2-0.8% antimony, 0.6-1.0% In, and 1.6-2.2% Ag.
Embodiment 3
[0036] Example 3: B is 0.5-1.0% Cu, C is 0.5-2.0% antimony, 1.0-2.0% In, 2-4% Ag.
[0037] Composition
[0038] * Contrast product is an imported product, and it can be seen from the table that each index of the lead-free solder of the present invention is equivalent to the contrast product
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Abstract
A lead-free solder material for soldering in electronic, instrument, lamp and other fields consists of: In 0.003-5 wt%, Sb 0.2-5 wt%, Cu 0.5-3 wt% Ag 0.2-5 wt% and Sn the rest. Compared with the traditional solder, the present invention has equal or even higher mechanical performance, soldering temperature and electric performance, and may be drawn into 0.5 mm diameter lead-less solder wire, and it is harmless to human body and environment.
Description
Technical field: [0001] The present invention relates to a kind of lead-free solder, more specifically, the present invention relates to a kind of composition that takes tin as the base metal and adds several metals, it can be easily made into lead-free solder, and can be further drawn The finished wire, such as lead-free welding wire, can be widely used in the lighting industry, electronics, instruments, meters and other industries. Background technique: [0002] The welding of lampshades in the lighting industry generally uses high-lead solders, and the welding of the electronics industry also generally uses lead-containing solders; specifically, lead-containing solders have better welding fluidity and better mechanical properties after welding. It is suitable for the lighting industry and the electronics industry. Because the heavy metal lead is harmful to the human body and the pollution to the environment is becoming more and more serious, the use of lead-containing sol...
Claims
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IPC IPC(8): B23K35/26C22C13/02
Inventor 邓和升于耀强张建辉邓和军邓妍邓曦
Owner 郴州金箭焊料有限公司
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