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1·Generally the same fluxes will work for lead-free solder.

一般来说，相同的焊剂用于无铅焊料是有效的。

2·Through research, choose one or two lead-free solder paste.

通过研究，选择一种或两种无铅锡膏。

3·At last, the progress trend of lead-free solder is pointed out.

最后指出了无铅焊料的发展趋势。

4·So study lead-free solder paste in the electronic application package is important.

因此研究无铅锡膏在电子封装中的应用具有重要意义。

5·Lead-free solder bar is one kind of environmental-friendly product with good stability.

无铅锡条是一种环保型，稳定性很好的产品。

6·Lead-free solder wire is one kind of environmental-friendly product with good stability.

无铅锡线是一种环保型，稳定性很好的产品。

7·Nitrogen Protection is used in practical industry because of poor wettability of lead-free solder.

由于无铅钎料润湿性较差，在实际生产中普遍采用氮气保护。

8·So it is very necessary to study the wettability of lead-free solders and electromigration of solder joints.

因此开展低成本无铅焊料润湿性和焊点电迁移研究非常有必要。

9·This paper describes the development trend of low melting point and high melting point type Lead-free solder paste.

概述了低熔点和高熔点型无铅焊膏的开发动向。

10·This paper's actual production of lead-free solder paste and lead-free soldering process has been systematically studied.

本文结合公司的生产实际，对无铅锡膏和无铅焊接工艺进行了系统研究。