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★高低温焊锡棒
★其他特殊用途的焊锡棒
产品特性：
▲抗氧化焊锡条及优越的熔解性，减少不熔锡的产生，特别适用于波峰焊锡爐。手浸爐的使用效果则更佳。
▲提升焊锡的扩散能力，加强了凝固性，减少如架桥，锡尖等不良情况产生，使焊锡效果更佳，更稳定。
▲明显减低焊锡的氧化反应，杜绝焊锡表面转化为黄色及褐色的现象，稳定保持焊锡光亮如“镜面”的表面，从而降低其生产成本。
The history of soldering goes back some 5,000 years ago, but fundamental soldering has always been the Sn-Pb series solder that consists of tin and lead. However, lead pollution in groundwater has been recognized as an environmental problem and complete elimination of the use of lead is called for.
Realizing that protection of our environment is our task in the 21st century, SMIC has earnestly extended our research in this area and developed Lead-Free solder "ECO SOLDER." Please contact for any problem that relates to Lead-Free soldering. We are thoroughly prepared to introduce a Lead-Free soldering system as we have a comprehensive technology base and have constructed support systems in various phases.
Comparison of typical Lead-Free alloy M705 and Sn63 characteristics
| Item | Alloy composition | Melting temperature (°C) |
Tensil Strength (MPa) |
Elongation (%) |
Young's modulus (GPa) |
Specific Gravity |
|---|---|---|---|---|---|---|
| M705 | Sn-3.0Ag-0.5Cu | 217 to 220 | 53.5 | 46 | 41.6 | 7.4 |
| Sn63 | Sn-37Pb | 183 | 56 | 56 | 25.8 | 8.4 |
ECO SOLDER
Lead-Free ECO SOLDER developed by SMIC offers high soldering reliability compared with the Sn-Pb series solder of the past and is available in a wide product lineup according to the required soldering temperature. Product availability may be limited for certain alloy compositions. Please select the appropriate product from the ECO SOLDER Products Guide below.
ECO SOLDER Products Guide
| Item | Alloy composition (wt%) | Temp. (°C) Solidus line / Peak[1] / Liquidus line |
Form | Remarks | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| M-series: Solidus line temp. 200 to 250 °C | ||||||||||
| M10 | Sn-5.0Sb | 240 | 243 | 243 |  |
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| M20 | Sn-0.75Cu | 227 | 229 | 229 | |
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| M24E | Sn-0.70Cu-0.03Ni-P | 228 | 230 | 230 | |
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*7 | |||
| M30 | Sn-3.5Ag | 221 | 223 | 223 | |
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| M31 | Sn-3.5Ag-0.75Cu | 218 | 219 | 219 | |
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| M34 | Sn-1.0Ag-0.5Cu | 217 | 219 | 227 | |
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| M35 | Sn-0.7Cu-0.3Ag | 217 | 219 | 227 | |
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| M37 | Sn-4.0Ag-0.9Cu | 217 | 219 | 230 | |
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*6 | |
| SA2515 | Sn-2.5Ag-1.0Bi-0.5Cu | 214 | 221 | 221 | |
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*2 | |||
| M42 | Sn-2.0Ag-0.75Cu-3.0Bi | 207 | 214 | 218 | |
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*2 | |||
| M51 | Sn-3.0Ag-0.7Cu-1.0In | 214 | 217 | 217 | |
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| M704 | Sn-3.35Ag-0.7Cu-0.3Sb | 218 | 219 | 220 | |
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| M705 | Sn-3.0Ag-0.5Cu | 217 | 219 | 220 | |
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*1 |
| M706 | Sn-3.0Ag-0.7Cu-1Bi-2.5In | 204 | 213 | 215 | |
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| M707 | Sn-2.0Ag-0.5Cu | 217 | 218 | 223 | |
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| M715 | Sn-3.9Ag-0.6Cu | 217 | 219 | 226 | |
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| M716 | Sn-3.5Ag-0.5Bi-8.0ln | 197 | 208 | 214 | |
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*4 | |||
| DY Alloy | Sn-1.2Ag-4.0Cu | 217 | 225 | 353 | |
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| M33 | Sn-2.0Ag-6.0Cu | 213 | 219 | 380 | |
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| L-series: Solidus line temp. under 200 °C | ||||||||||
| L11 | Sn-8.0Zn-3.0Bi | 190 | 197 | 197 | |
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| L20 | Sn-58Bi | 139 | 141 | 141 | |
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| L21 | Sn-2.0Ag-0.5Cu-7.5Bi | 189 | 208 | 213 | |
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| L23 | Sn-57Bi-1.0Ag | 138 | 140 | 204 | |
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*5 | |||