Tables of Material Data

Table 2: Material Data
  • Column 2: The sealing metals indicated are described in table 3.
  • Column 3: a 20-300: Mean linear coefficient of expansion in the temperature range from 20 to 300°C according to DIN 52 328.
  • Column 4: Tg: Transformation temperature according to DIN 52 324
  • Column 5: Viscosity: The indicated viscosity temperatures mark the following processing stages.
    107.6 dPas (softening temperature): Noticeable deformation of glasses under their own weight, even after short heating periods (minutes).
    104 (processing temperature): Central viscosity of the range from 103 to 105 dPas in which most processing techniques such as pressing, blowing and drawing are applied.
  • Column 7: tk100 value: Temperature at which the electrical resistivity is 108 W cm according to DIN 52 326.
  • Column 9: DZ: Dielectric constant; tan d: Dissipation factor.
  • Column 10: W: Resistance to water according to DIN ISO 719
    S: Resistance to acid according to DIN 12 116
    L: Resistance to alkaline solutions according to DIN ISO 695
    W is subdivided into 5 resistance classes, S into 4 and L into 3. The higher the class number, the lower the resistance.
Table 3: Sealing Metals
新闻,展会与活动
21.
March
展会 Optical Fiber Communication (OFC) Conference & Exhibition, Los Angeles, CA, United States, 21.03 - 23.03.2017
14.
March
展会 AAOS (American Academy of Orthopaedic Surgeons), San Diego, CA, United States, 14.03 - 18.03.2017
改动
SCHOTT在本网站上使用Cookies来提高用户体验,并提供可能的最佳服务。一旦浏览本网站,即表示您同意我们使用Cookies。