Introductions
 
Zhongya(tianjin) uses the high-purity (99.99%) Sn as raw material, to development the  High Purity Series Soldering Bar for wave soldering , dip soldering. This product meets the requirement of the EU RoHS environment directive. In order to meet the requirement of different soldering and adapt to a lot of operating methods , a variety of alloy composition and types of tin bar can be provided for users.

Characteristics

In wave soldering, the composition of solder should be periodically measured in boiler, because the tin content will get low ,meanwhile the content of copper and lead increase. In order to reduce product costs, right amount of high purity series soldering bar or anti-oxidized alloys should be added when the content of copper or lead is close to the standard to maintain the normal tin furnace and wave soldering .
 
Composition Selection Of Solder Alloys

4-6 Lead-free Solder Bar Alloy Composition Selection Guide

4-6-1 Sn-Cu Alloys

4-6-2 Sn-Ag Alloys

4-6-3 Sn-Ag-Cu Alloys

4-6-4 Sn-Zn （Eutectic） alloys

4-6-5 Sn-Bi-X Alloys

4-6-6 Sn-Sb Alloys