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- Free - lead solder alloy 无铅焊料
- Is there a standard lead-free solder alloy? 是否存在一种标准无铅焊料合金?
- Thermodynamic calculation and evaluation for Sn-Ag-Cu-Ce lead-free solder alloy system were carried out by means of Chou model. 利用周模型对Sn-Ag-Cu-Ce无铅钎料合金体系进行了热力学计算预测。
- The fatigue life of the solder alloy followed the Coffin-Manson equation, from which relevant fatigue parameters were determined. 线性回归分析表明;该焊料的低周疲劳寿命满足Coffin-Manson经验关系式;由此给出了焊料在室温下的低周疲劳参数.
- The fatigue behavior of the solder alloy was related to the fatigue-induced microstructural variations and the fracture mechanism. 采用扫描电镜观测和分析了焊料在疲劳前后的组织特征。
- Moreover,available methods of solder alloy design and tendency of test method turning to calculation method with predictable function in solder alloy design are also elaborated. 并对现有钎料设计方法以及钎料设计由试验向具有性能预测功能的计算设计方法的发展趋势加以叙述。
- The latter feature of a solder alloy is defined as the affinity and effectiveness of a molten metal to wet a substrate surface (such as Cu or Ni) under a given set of conditions. 焊料合金的润湿特性是指，在一定条件下，合金在融化状态下对基板界面（如：铜或镍）的润湿亲和力和润湿效率。
- Lead as soldering alloy in high performance communication electronic board and hexavalent chromium (Cr-VI)). 用于高功率通讯电子板及六价铬中作为焊锡合金的铅。
- Generally, solder alloys with more than about 8% bismuth will be brittle. 一般来说,铋含量超过8%25的焊料合金将会变脆。
- Q: How do I keep my employees from mixing lead-free and leaded solder and equipment on the line? 在有铅和无铅焊锡混合应用的生产线上，怎样进行设备和物料管理?
- How do I keep my employees from mixing lead-free and leaded solder and equipment on the line? 在有铅和无铅焊锡混合应用的生产线上，怎样进行设备和物料管理？
- lead solder joint microstructure 钎焊接头组织
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- Just as with the lead-based solder alloys, there are several alloys that seem to be the most commonly used. 就如同使用含铅焊料合金一样,同样也存在几种看来最为常用的合金。
- Long-term storage may result in poor lead solderability and degraded electrical performance. 长期存储可能会导致管脚可焊性差和电气性能退化。
- With more than 150 patents globally, selection of a lead-free solder alloy must be done carefully so proper license fees are paid for using patented alloys. 全球已有超过150个相关专利,因此,选择某种无铅焊料合金必须谨慎进行,使用专利合金要支付适当的特许费用。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- Kester continued to expand in 1998 by acquiring the IEM electronic solder paste product line from Fusion Incorporated and the assets of Cramco Solder Alloys Limited in Canada. 凯斯特公司通过收购Fusion股份有限公司的IEM电子焊锡膏产品系列和加拿大的Cramco焊料合金有限公司的资产,实力得到了不断扩充。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- * There is found that crack at Intermetallic Compound when mixed solder with Lead Free Solder and Lead Solder. 有铅焊料与无铅焊料混合焊接时，在合金层中发现了裂纹。
