Environment-friendly soldering tin material and preparation process thereof

A technology of soldering material and preparation process, applied in the direction of welding/cutting medium/material, manufacturing tools, welding equipment, etc., can solve the problems of multiple impurities, user hazards, high ion pollution, etc., meet environmental protection requirements and improve welding effect , to avoid the effect of ion pollution

Inactive Publication Date: 2018-12-18
深圳市安臣焊锡制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The solder material in the prior art has low purity and contains more impurities. When in use, it is easy to generate smoke, which has certain hazards to users, and when welding, it is prone to welding defects, such as many tin slags, cracking, etc. Phenomena such as bridge and beading; it will also cause certain damage to the welding surface. At the same time, the solder material in the prior art will produce high ion pollution during the preparation process, and random discharge will cause damage to the environment. Therefore, It is necessary to design an environmentally friendly solder material and its preparation process

Method used

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  • Environment-friendly soldering tin material and preparation process thereof

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Embodiment 1

[0030] An environmentally friendly solder material, including tin, copper, nickel, lead, silver, bismuth, zinc, antimony, arsenic, iron, aluminum, cadmium and flux, the composition ratio of the above raw materials is 96% tin and 0.6% copper , nickel 0.07%, lead 0.05%, silver 0.05%, bismuth 0.05%, zinc 0.0005%, antimony 0.05%, arsenic 0.015%, iron 0.02%, aluminum 0.001%, cadmium 0.002%, and flux 3.1075%.

[0031] A preparation process of an environment-friendly solder material, comprising the following steps: Step 1, raw material pretreatment; Step 2, raw material refinement; Step 3, raw material mixing; Step 4, high temperature heating; Step 5, flux addition; Step 6 , cooling and solidification; step seven, molding and preservation;

[0032] Wherein in above-mentioned step one, select tin, copper, nickel, lead, silver, bismuth, zinc, antimony, arsenic, iron, aluminum, cadmium and flux as raw material, in the process of selecting raw material, tin, copper, Nickel, lead, silver...

Embodiment 2

[0041] An environmentally friendly solder material, including tin, copper, nickel, lead, silver, bismuth, zinc, antimony, arsenic, iron, aluminum, cadmium and flux, the composition ratio of the above raw materials is 96.5% tin, 0.552% copper , Nickel 0.07%, Lead 0.1%, Silver 0.06%, Bismuth 0.06%, Zinc 0.001%, Antimony 0.1%, Arsenic 0.015%, Iron 0.01%, Aluminum 0.001%, Cadmium 0.001%, and Flux 2.53%.

[0042] A preparation process of an environment-friendly solder material, comprising the following steps: Step 1, raw material pretreatment; Step 2, raw material refinement; Step 3, raw material mixing; Step 4, high temperature heating; Step 5, flux addition; Step 6 , cooling and solidification; step seven, molding and preservation;

[0043] Wherein in above-mentioned step one, select tin, copper, nickel, lead, silver, bismuth, zinc, antimony, arsenic, iron, aluminum, cadmium and flux as raw material, in the process of selecting raw material, tin, copper, Nickel, lead, silver, bi...

Embodiment 3

[0052] An environmentally friendly solder material, including tin, copper, nickel, lead, silver, bismuth, zinc, antimony, arsenic, iron, aluminum, cadmium and flux, the composition ratio of the above raw materials is 95.5% tin and 0.8% copper , nickel 0.08%, lead 0.1%, silver 0.1%, bismuth 0.1%, zinc 0.001%, antimony 0.1%, arsenic 0.03%, iron 0.01%, aluminum 0.001%, cadmium 0.001%, and flux 3.177%.

[0053] A preparation process of an environment-friendly solder material, comprising the following steps: Step 1, raw material pretreatment; Step 2, raw material refinement; Step 3, raw material mixing; Step 4, high temperature heating; Step 5, flux addition; Step 6 , cooling and solidification; step seven, molding and preservation;

[0054] Wherein in above-mentioned step one, select tin, copper, nickel, lead, silver, bismuth, zinc, antimony, arsenic, iron, aluminum, cadmium and flux as raw material, in the process of selecting raw material, tin, copper, Nickel, lead, silver, bis...

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Abstract

The invention discloses an environment-friendly soldering tin material and a preparation process thereof. The environment-friendly soldering tin material comprises 95.5%-97.5% of tin, 0.5%-0.9% of copper, 0.06%-0.08% of nickel, 0-0.1% of lead, 0-0.1% of silver, 0-0.1% of bismuth, 0-0.001% zinc, 0-0.1% of antimony, 0-0.03% of arsenic, 0-0.02% of ferrum, 0-0.001% of aluminum, 0-0.002% of cadmium and1%-4% of a soldering flux. The preparation process comprises the first step of pre-treatment of the raw materials. According to the environment-friendly soldering tin material and the preparation process thereof, the soldering tin material prepared from tin, copper, nickel, lead, silver, bismuth, zinc, antimony, arsenic, ferrum, aluminum, cadmium, aluminum, cadmium and the soldering flux is highin purity and environmentally friendly, welding defects can be effectively avoided when the soldering tin material is used, and the welding effect is improved; and meanwhile, the soldering flux is added into the soldering tin material in the preparation process so that ionic contamination can be avoided in use, emission can be conducted without special treatment, and the environmental friendlinessrequirement is met.

Description

technical field [0001] The invention relates to the technical field of solder materials, in particular to an environment-friendly solder material and a preparation process thereof. Background technique [0002] Solder is an important industrial raw material for connecting electronic components in welding lines. It is a solder with a low melting point, mainly referring to solder made of tin-based alloys; solder is widely used in the electronics industry, home appliance manufacturing, automobile manufacturing, maintenance business and daily life. [0003] The solder material in the prior art has low purity and contains more impurities. When in use, it is easy to generate smoke, which has certain hazards to users, and when welding, it is prone to welding defects, such as many tin slags, cracking, etc. Phenomena such as bridge and beading; it will also cause certain damage to the welding surface. At the same time, the solder material in the prior art will produce high ion pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/26B23K35/40
CPCB23K35/262B23K35/40
Inventor 江海生李开有
Owner 深圳市安臣焊锡制品有限公司
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