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ASTM TM2 Thermal bimetallic strip P675R bimetal strip1
Other Alloys, P675R, Bimetal strip
Shanghai Tankii Alloy Material Co., Ltd.
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Product Description ASTM TM2 Thermal bimetallic strip P675R bimetal stripoverview 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 and high resistivity, but lower elastic modulus and allowed stress, can increase the sensitivity of the instrument, smaller size and increase the reactionshop signP675RWith brand Composite layeralloybrandHigh expansion layerMn75Ni15Cu10(Mn72Ni10Cu18)middle layer--------Low expansion layerNi36Chemical compositionshop signNiCrFeCoCuZnMnSiCSP≤Ni3635.0~37.0-allowance---≤0.6≤0.30.050.020.02Mn72Ni10Cu188.0~11.0-≤0.8-17.0~19.0-allowance≤0.50.050.030.02Mn75Ni15Cu1014.0~16.0-≤0.8-9.0~11.0-allowance≤0.50.050.020.03performanceThan bending K(20~135oC)Temperature curvatureF/(greenhouse ~ 130 oC) resistivityLinear temperature/ oCAllows the use of temperature / oCDensity (g/cm after)Nominal valueAllowable deviationStandard valuesAllowable deviationLevel 1Level 220.8±5%±7%39.0%±5%1.13±5%-20~150-70~2007.7 Modulus of elasticityE/GPaHardness (HV)Tensile strengthMPaAllow stress MPaHigh expansion layerLow expansion layer minimumbiggest113~142190~240200~255736~834147294
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