Lead-free alloys for use in solder bonding
    21.
    发明授权
    Lead-free alloys for use in solder bonding 失效
    用于焊接的无铅合金

    公开(公告)号:US5698160A

    公开(公告)日:1997-12-16

    申请号:US705035

    申请日:1996-08-29

    IPC分类号: B23K35/26 C22C13/00

    CPC分类号: C22C13/00 B23K35/262

    摘要: According to the present invention, an article of manufacture is provided having at least one region which includes a lead-free solder composition. The lead-free solder composition comprises an alloy of at least 50 wt. % tin and 7-30 wt. % zinc. An effective amount of silver is added to increase the ductility of the resultant alloy at least 25% over the ductility of the binary eutectic tin-zinc alloy. In a further embodiment, the present invention provides alloys useful in articles comprising lead-free solder compositions. The alloys include at least (8.0+y) wt. % zinc, 0.25 y to 0.5 y wt. % silver and at least 50 wt. % tin where y is from 0.2 to 22.

    摘要翻译: 根据本发明,提供了具有至少一个包括无铅焊料组合物的区域的制造品。 无铅焊料组合物包含至少50wt。 %锡和7-30重量% %锌。 加入有效量的银以使所得合金的延展性比二元共晶锡 - 锌合金的延展性提高至少25%。 在另一个实施方案中,本发明提供了可用于包含无铅焊料组合物的制品中的合金。 合金包括至少(8.0 + y)wt。 %锌,0.25〜0.5重量% %银和至少50重量% %锡,其中y为0.2至22。