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首页 > 资料下载 > 杜美丝化学成分及应用
杜美丝化学成分及应用
2016-03-03 15:56:42

杜美丝用于在电真空器材中与玻璃进行密封时作封接材料用,它采用铁-镍合金棒(或丝)作芯材,经表面镀铜(或套铜),然后进行拉制、退火和表面硼化处理而成。产品的熔封试验和方法达到或者超过国家标准GB11248—89中的有关规定。先进的表面镀铜(或套铜)技术使杜美丝表面状态呈均匀的砖红色或黄色等。产品有红杜美丝、淡(金黄)色杜美丝、白杜美丝、无硼杜美丝和光亮(防潮型)杜美丝等。 
  Dumet wire is used as seal materials for glass-to-metal of electro-vacuum device .it is manufactured by wrapping or electroplating copper on the Fe-Ni alloy bar(or wiresurfact by drawing.annealing and borating treatmant. seal test & method pass according to the national standard GB11248-89 .The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

 

 

技术性能: Technical property

 

 

 芯线

Core Wire

镍含量   Ni Content

   41-43%

铁含量   Fe Content

余量 Remaining part

线膨胀系数 6.3--7.2

Coefficient of the wire expansion

 

 杜美丝

Dumet Wire

铜含量   Cu Content

  23-30%wt

延伸率  Elongation

  >18%

规格   Specification

  0.2-0.50mm

公差   Tolerance

  ±0.01mm

 

 

    ?。ㄗⅲ禾厥夤娓窈鸵罂啥ㄗ觯?/p>

 



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