R3 bimetallic alloy strip used in time-delay relays, lamp flashers

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Price:RUB 2,006.84
Price in USD:Details

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Product Overview

Description

 R3 bimetallic alloy 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: Linear temperature range is higher, low thermal performance, can be used at high temperature.

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R3

With brand

 

Composite layer
alloybrand

High expansion layer

Ni22Cr3

middle layer

Ni

Low expansion layer

Ni36

 

Chemical composition

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Ni

Cr

Fe

Co

Cu

Zn

Mn

Si

C

S

P

Ni36

35.0~37.0

-

Bal

-

-

-

≤0.60

≤0.3

0.05

0.02

0.02

Ni

≤99.3

-

≤0.15

-

≤0.15

-

-

≤0.15

0.15

-

0.015

Ni22Cr3

21.0~23.0

2.0~4.0

allowance

-

-

-

0.3~0.6

0.15~0.30

0.25~0.35

0.02

0.02

performance

Than bending K(20~135ºC)

Temperature curvature
F/(greenhouse ~ 130 ºC)

 resistivity

Linear temperature
/ ºC

Allows the use of temperature / ºC

Density (g/cm after)

Nominal value

Allowable deviation

Standard values

Allowable deviation

Level 1

Level  2

12.2

±5%

±10%

23%±5%

0.033

±10%

-20~150

-70~260

8.58

 

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