Technical data of Type DB-444 electronic glass

SJ/T 10588.16-1994 Technical data of DB-444 electronic glass SJ/T10588.16-1994 Standard download decompression password: www.bzxz.net

Electronic Industry Standard of the People's Republic of China
Technical data of typeDB-444 electronic glassMain content and scope of application
This standard specifies the chemical composition and physical and chemical performance indicators of DB-444 electronic glass. This standard applies to glass materials used in color picture tube glass screens. 2 Reference standards
GB9000
GB9622
Standard method for chemical analysis of electronic glass
Test method for physical and chemical properties of electronic glass
Test method for physical properties of color picture tube glass GB9474.2~.3
GB/T14012
3 Technical requirements
Analysis of cerium oxide in color picture tube glassGeneral specification for black and white picture tube glass shell
Chemical composition is shown in Table 1.
Chemical composition
Weight percentage
60.50±1.0
2.00±0.10
1.10±0.05
0.30±0.05
8.20±0.15
8.85±0.15
7.60±0.15
7.70±0.15
2.50±0.10
0.45±0.05
0.35±0.05
Electric Power Plant of the People's Republic of China Approved by the Ministry of Industry and Information Technology on August 8, 1994 SJ/T10588.16-94
Test Method
GB9000.11
GB9000.10
GB9000.15
GB9000.14
Implemented on December 1, 1994
Chemical Composition
SJ/T10588.16-94
Continued Table 1
Weight Percentage
Note: 1) Fe; O, as impurity control, is not included in the percentage composition. 3.2 Physical and Chemical Performance Index See Table 2.
Indicator Name
Average Linear Thermal Expansion Coefficient in the Range of 0～300℃. Density
Softening point
Annealing point
Strain point
Light transmittance (T5 (%)
Volume resistivity at 350℃lgp
X-ray absorption coefficient (0.06nm.20.6KeVChromaticity coordinates (center value)
Test method
GB9000.12
GB9000.14
(98.2±0.7)×10-1
2.785±0.005wwW.bzxz.Net
706±3
521±5
477±5||tt| |Test method
GB9622.821
GB/T14012
Article 4.5.4
Note: 2) Articles 4.5 and 4.6 are combined and carried out as follows: The measurement starts from the starting point, keeps warm at 300℃ for 10 minutes, starts the measurement, continues to increase the furnace temperature, and measures every 10℃ increase until the measurement ends at 390℃. Additional notes:
This standard is under the jurisdiction of the Standardization Institute of the Ministry of Electronics Industry. This standard was drafted by Factory 4400 and the Standardization Institute of the Ministry of Electronics Industry. The main drafters of this standard are: Li Guanghui, Duan Zifa, Liu Chengjun, Bai Yixiang, 2
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