GB/T 4187-1984 Tungsten Rod
Basic Information
Standard ID:
GB/T 4187-1984
Standard Name: Tungsten Rod
Chinese Name:
钨杆
Standard category:National Standard (GB)
state:in force
Date of Release1984-03-09
Date of Implementation:1984-01-01
standard classification number
Standard ICS number:Metallurgy>>77.080 Ferrous Metals
Standard Classification Number:Metallurgy>>Nonferrous metals and their alloy products>>H63 Rare high melting point metals and their compounds
associated standards
Publication information
other information
Release date:1984-03-09
Review date:2004-10-14
Drafting unit:Shanghai Light Bulb Factory
Focal point unit:Ministry of Information Industry (Electronics)
Publishing department:Ministry of Information Industry (Electronics)
competent authority:Ministry of Information Industry (Electronics)
Introduction to standards:
GB/T 4187-1984 Tungsten Rod GB/T4187-1984 Standard Download Decompression Password: www.bzxz.net
Some standard content:
National Standard of the People's Republic of China
Tungsten rods
This standard applies to tungsten rods used in the manufacture of electric vacuum devices and electric light source parts. 1. Brand, purpose and specifications
1.1 The brand and purpose of tungsten rods shall comply with the provisions of Table 1. Table 1
Note: Polished rod material should be used for lead wires. 1.2
The diameter range of tungsten rods shall comply with the provisions of Table 2. TypeWww.bzxZ.net
Polished tungsten rods
UDC669.27-422
GB 4187-84
Filament, cathode, electron tube parts and gas discharge lamp electrodes, etc. Grid side rods, lead wires, brackets, gas discharge lamp electrodes, etc. Grid side rods, brackets, lead wires and electrodes, etc. Table 2
The shortest length of tungsten rods shall comply with the provisions of Table 3. 1.3
Diameter d
0.8
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