Technical data of Type DW-270 electronic glass

SJ/T 10586.4-1994 DW-270 type electronic glass technical data SJ/T10586.4-1994 standard download decompression password: www.bzxz.net

Electronic Industry Standard of the People's Republic of China
Technical data of type DW-270 electronic glass
Technical data of type DW-270 electronic glassSubject content and scope of application
This standard specifies the chemical composition and physical and chemical performance indicators of DW-270 electronic glass. This standard applies to glass materials used in ultra-high frequency electronic devices. 2 Reference standards
GB9000 Standard method for chemical analysis of electronic glass GB9622 Technical requirements for test methods for physical and chemical properties of electronic glassbzxz.net
Chemical composition is shown in Table 1.
Chemical composition
Weight percentage (%)
69.0±1.0
Note: 1) Fe, O, as impurity control, are not counted in the percentage composition. 3.2 Physical and chemical performance indicators are shown in Table 2.
1994-08-08 Ministry of Electronics Industry of the People's Republic of China approved SJ/T10586.4-94
Replaced SJ671-83
Test method
GB9000.10
GB9000.14
Implemented on 1994-12-01
Indicator name
SJ/T10586.4--94
03 Average linear thermal expansion coefficient a within 00℃ Density
Softening point
Annealing point
Strain point
Dielectric loss tangent value tg8×10 at frequency 6MHz and temperature 20℃ Temperature (Tk-10) when volume resistivity is 100Mn·cm Thermal stability
Water resistance Chemical stability level
Additional instructions:
This standard is under the jurisdiction of the Standardization Institute of the Ministry of Electronics Industry. 1/℃
This standard was drafted by the Standardization Institute of the Ministry of Electronics Industry and the 776th Factory. The main drafters of this standard are Liu Chengjun and Jiang Daohua. This standard was first issued in 1973 and revised for the second time in August 1994. Refers to
(37.0±1.0)×10-1
2.130±0.015
710±10
470±10
420±10
≥370
≥280
Test method
GB9622.11
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