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TB1577A Thermal bimetal strip
Thermal bimetal strip is by the different expansion coefficient of two or more than two layers of metal or metal solid combination, and along the entire interface varies with temperature and the thermal function of shape changes in composite materials.One of high expansion coefficient become active layer, low expansion coefficient becomes passive.When requirements with high resistivity, but heat sensitive resistance performance is essentially the same type of thermal bimetal series, can be added between the two layers of different thickness of middle layer as a shunt layer, is to achieve the purpose of control different resistivity.
The basic characteristic of the thermal bimetal is changing with
temperature and temperature deformation, resulting in a certain
moment.Many devices use this feature to convert heat energy into
mechanical work to achieve automatic control.Thermal bimetal used
for control system and temperature sensor in the measuring
instrument.
Main features: high heat sensitive properties, good low temperature
stability, easy to welding.
shop sign TB1577A
Chemical composition
shop sign | Ni | Cr | Fe | Co | Cu | Zn | Mn | Si | C | S | P |
≤ | |||||||||||
Ni36 | 35.0~37.0 | - | allowance | - | - | - | ≤0.6 | ≤0.3 | 0.05 | 0.02 | 0.02 |
Ni20Mn6 | 19.0~21.0 | - | allowance | - | - | - | 5.5~6.5 | 0.15~0.30 | 0.05 | 0.02 | 0.02 |
performance
Than bending K(20~135ºC) 15.0±5%
Temperature curvatureF/(greenhouse ~ 130 ºC) 28.5%±5%
resistivity(μΩ·m) 0.8±5%
Density (g/cm3) 8.1
production process
Cold rolled →go oil → pickling → annealing cold-rolled →oil →
pickling → annealing cold-rolled → conform to the requirements of
the use of thermal bimetal strip
Thermal bimetal strip is by the different expansion coefficient of two or more than two layers of metal or metal solid combination, and along the entire interface varies with temperature and the thermal function of shape changes in composite materials.One of high expansion coefficient become active layer, low expansion coefficient becomes passive.When requirements with high resistivity, but heat sensitive resistance performance is essentially the same type of thermal bimetal series, can be added between the two layers of different thickness of middle layer as a shunt layer, is to achieve the purpose of control different resistivity