SJ/T 10588.15-1994 Technical data of DB-443 electronic glass SJ/T10588.15-1994 Standard download decompression password: www.bzxz.net
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Electronic Industry Standard of the People's Republic of China Technical data of type DB-443 electronic glass Technical data of type DB-443 electronic glass Subject content and scope of application This standard specifies the chemical composition and physical and chemical performance indicators of DB-443 electronic glass. This standard applies to glass materials used in the neck of color picture tubes. 2 Reference standards GB9000 GB9622 GB/T14012 Technical requirements Standard method for chemical analysis of electronic glass Test method for physical and chemical properties of electronic glass General specification for glass shell of black and white picture tubes Chemical composition is shown in Table 1. Chemical composition Weight percentage 47.80±1.00 3.50±0.15 1.50±0.10 2.00±0.10 2.70±0.15 9.60±0.15 32.50±0.20 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. The Ministry of Electronics Industry of the People's Republic of China approved SJ/T10588.15-94 on August 8, 1994 Replaced SJ2412-83 Test method GB9000.11 GB9000.10 GB9000.12 GB9000.14 Implemented on December 1, 1994 Indicator name SJ/T10588.15-94 Average linear thermal expansion coefficient α in the range of 0~300℃Density Softening point Annealing point| |tt||Strain point Volume resistivity Igp at 350℃ X-ray absorption coefficient (0.06nm, 20.6KeV) 1/℃bZxz.net (96.5±0.8)×10-7 3.285±0.015 643±3 466±5 422±5 Test method GB9622.8) 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, and then starts the measurement. Continue to increase the furnace temperature, and make measurements every time the temperature rises by 10℃ 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, Liu Chengjun, Bai Yixiang, and Duan Zifa. This standard was first issued on December 5, 1983 and revised for the first time on August 8, 1994. 2 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.