- 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
(注:特殊规格和要求可定做)
- 上一篇 [返回首页] [打印] [返回上页] 下一篇