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Dumet is a kind of permanent matching with soft glass sealing double metal alloy materials, has a good thermal expansion coefficient, mechanical properties, physical properties, etc.Widely used in electric vacuum components, electric light source device, semiconductor discrete devices and vacuum electronics.
Dumet oxide
Product group | Use | Specifications | Technical parameters | ||
Dumet oxide | For semiconductor use such as Vacuum electronic products of Glass diode Do-34,Do-35,LL-34 and Do-41 | Φ0.2-1.42mm | Ni(core wire) | 41-43% | 46-48% |
Cu | 20-25% | 14-19% | |||
Tensile strength | ≤65kg/mm² | ||||
elongation | >20% | ||||
Expansion coefficient | Radial:82-92*10-7cm/cm/℃ Axial:82-92*10-7cm/cm/℃ |
White dumet
Product group | Use | Specifications | Technical parameters | |
White dumet | Insert type bulb for auto light and motorcycle light | Φ0.2-0.5mm | Ni(core wire) | 41-43% |
Cu | 24-26% | |||
Tensile strength | ≤65kg/mm² | |||
elongation | ≥20% | |||
Expansion coefficient | Radial:82-92*10-7cm/cm/℃ Axial:62-65*10-7cm/cm/℃ |
Bright (anti humidity) dumet
Product group | Use | Specifications | Technical parameters | |
Bright (anti humidity) dumet | Lighting energy-saving lamps, ordinary lamp, small round bulb etc | Φ0.3-0.5mm | Ni(core wire) | 41-43% |
Cu | 21-30% | |||
Tensile strength | ≤65kg/mm² | |||
elongation | ≥20% | |||
Expansion coefficient | Radial:82-92*10-7cm/cm/℃ Axial:62-65*10-7cm/cm/℃ |
Yellow dumet
Product group | Use | Specifications | Technical parameters | |
Yellow dumet | Energy-saving lamps, auto lamp light use | Φ0.3-0.5mm | Ni(core wire) | 41-43% |
Cu | 23-28% | |||
Tensile strength | ≤65kg/mm² | |||
elongation | ≥20% | |||
Expansion coefficient | Radial:82-92*10-7cm/cm/℃ Axial:62-65*10-7cm/cm/℃ |
Red dumet
Product group | Use | Specifications | Technical parameters | |
Red dumet | General bulb, holiday light, mini bulb, Christmas lights, small round bulb | Φ0.3-0.5mm | Ni(core wire) | 41-43% |
Cu | 21-23% | |||
Tensile strength | ≤65kg/mm² | |||
elongation | ≥20% | |||
Expansion coefficient | Radial:82-92*10-7cm/cm/℃ Axial:62-65*10-7cm/cm/℃ |
Boron free dumet
Product group | Use | Specifications | Technical parameters | |
Boron free dumet | Cold cathode lamp and all kinds of special lamp decoration | Φ0.18-0.6mm | Ni(core wire) | 41-43% |
Cu | 21-30% | |||
Tensile strength | ≤65kg/mm² | |||
elongation | ≥20% | |||
Expansion coefficient | Radial:82-92*10-7cm/cm/℃ Axial:62-65*10-7cm/cm/℃ |
Tinge dumet
Product group | Use | Specifications | Technical parameters | |
Light tinge sorts | Execution for LCD , computer and TV display screen | Φ0.3-1.2mm | Ni(core wire) | 41-43% |
Cu | 15-25% | |||
Tensile strength | ≤65kg/mm² | |||
elongation | ≥18-20% | |||
Expansion coefficient | Radial:82-92*10-7cm/cm/℃ Axial:62-65*10-7cm/cm/℃ |