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Our company have been integrating researching and practical experience in producing solder bars for many years, combined environment protection development direction of modern electronic industry and demands of reliability produts, the company produces lead-free tin bar with high purity metal raw material. Under strict quality control, the company effectively control the impurity content of oxidizing metal and nonmetal, and the tin bar shows smooth surface, quite high purity, fine flowing after fusing, wonderful wettability, polished soldering spot, little oxidizing rubbish and so on. It is suitable for wave welding and hand welding that is required high quality, Thousands Island continues to research and develop, in order to supply lead-free solder bar of kinds of alloy scales and types for custpmers.
Lead-free anti-oxidation tin bar
Lead-free tin bar of high temperature
Lead-free tin bar of low temperature
Lead-free dim tin bar
Lead-free tin bar with silver
Lead0free fox other special applications |
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Guide points of lead-free welding:
In order that you can smoothly perform lead-free process, our company supplies some key points about using the lead-free solder before you use the lead-free assemly, we wish these key points can be helpful for your production.
Please choose Sn/Ag/Cu, Sn/Cu, Sn/Ag alloys, because these alloys are the best eutectic alloy of lead-free solders, and can greatly withstand the lead interfusion, even, they are more suitable for step-by-step lead-free processing of whole material.
Check the teperature-control atability of lead-free equipment, to make sure the lowest temperature difference during welding.
Improve metting ability of lead-rfee solder through taking use of die plate tapping equipment, nitrogen welding environment and higher active soft solder.
After welding, please pay attention to check the electric performance, stress of butt-welding material, thermal fatigue, creeping and damage for mechanical vibration.
Make sure the material alloy and thermal resistance are matching with solder. |
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