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    • 7. 发明授权
    • Composite thermostat material
    • 复合热稳定材料
    • US3767370A
    • 1973-10-23
    • US3767370D
    • 1971-11-22
    • TEXAS INSTRUMENTS INC
    • ORNSTEIN J
    • B32B15/01B32B15/00
    • B32B15/013B32B15/015H01H2037/526H01H2037/528Y10S428/925Y10S428/931Y10T428/12507Y10T428/12514Y10T428/12917
    • A multilayer composite thermostat material is disclosed having predetermined characteristics of electrical resistivity and a substantially constant deformation resistance responsive to exposure to elevated temperatures over a predetermined temperature range. The composite includes a first outer layer of a first preselected metallic alloy having a relatively high coefficient of thermal expansion, a second outer layer of a second preselected metallic alloy having a relatively lower coefficient of thermal expansion, and an intermediate layer of a third preselected metallic, non-ferrous material having a resistivity of between approximately 10 ohms per circular mil foot to 30 ohms per circular mil foot and a substantially constant deformation resistance responsive to exposure to elevated temperatures up to approximately 500*C.
    • 公开了一种多层复合恒温材料,其具有预定的电阻率特性,并且响应于在预定温度范围内暴露于升高的温度而具有基本上恒定的变形阻力。 复合材料包括具有相对高的热膨胀系数的第一预选金属合金的第一外层,具有相对较低的热膨胀系数的第二预选金属合金的第二外层和第三预选金属合金的中间层 ,每个圆形密耳英尺具有大约10欧姆每圆密耳至30欧姆的电阻率的有色金属材料,以及响应于暴露于高达约500℃的升高温度的基本上恒定的变形阻力。
    • 8. 发明授权
    • Composite thermostat material
    • US3712799A
    • 1973-01-23
    • US3712799D
    • 1970-12-21
    • TEXAS INSTRUMENTS INC
    • ORNSTEIN J
    • G01K5/66B23P3/00
    • G01K5/66H01H2037/526H01H2037/528Y10S428/925Y10T428/12507Y10T428/12771
    • A RELATIVELY LOW COST, MULTI-LAYER COMPOSITE THERMOSTAT MATERIAL IS DISCLOSED HAVING PRESELECTED ELECTRICAL RESISTIVITY AND FLEXIVITY CHARACTERISTICS INCLUDING FIRST AND SECOND OUTER LAYERS OF METALLIC ALLOYS HAVING RELATIVELY HIGH AN RELATIVELY LOWER COEFFICIENTS OF THERMAL EXPANSION AND AN INTERMEDIATE A LAYER OF A FERROUS ALLOY. THE FIRST OUTER LAYER OF METALLIC ALLOY COMPRISES A MATERIAL COMPRISING BY WEIGHT APPROXIMATELY 71% TO 76% MANGANESE, 9% TO 19% COPPER, AND 9% TO 17% NICKEL, WHILE THE SECOND OUTER LAYER COMPRISES A METALLIC ALLOY SUCH AS THE MATERIAL COMMONLY REFERRED TO AS INVAR, WHICH COMPRISES BY WEIGHT APPROXIMATELY 35 1/2% TO 36 1/2% NICKEL AND THE BALANCE IRON. THE FIRST AND SECOND OUTER LAYERS ARE METAL-

      LURGICALLY BONDED TO RESPECTIVE OPPOSITE SURFACES OF THE FERROUS INTERMEDIATE LAYER. THE VARIOUS LAYERS COMPRISING THE COMPOSITE MATERIAL COOPERATE TO DEFINE AN EXTREMELY ECONOMICAL, COMPOSITE THERMOSTAT MATERIAL HAVING RE SISTIVITY CHARACTERISTICS SUITABLE FOR MANY APPLICATIONS, WHILE HAVING REQUISITE CHARACTERISTICS OF FLEXIVITY, USEFUL DEFLECTION TEMPERATURE RANGE, STRUCTURAL STRENGTH AND ABILITY TO WITHSTAND HIGH TEMPERATURES COMPARABLE TO PREVIOUSLY AVAILABLE THERMOSTAT MATERIALS ONLY OBTAINABLE AT SUBSTANTIALLY HIGHER COSTS.