公开(公告)号：US3078717A

公开(公告)日：1963-02-26

申请号：US79259759

申请日：1959-02-11

Applicant: TEXAS INSTRUMENTS INC

Inventor： HOWARD ERNEST R

IPC: G01K5/68

CPC classification number: G01K5/68

公开(公告)号：US3560171A

公开(公告)日：1971-02-02

申请号：US3560171D

申请日：1968-05-01

Applicant: TEXAS INSTRUMENTS INC

Inventor： ORNSTEIN JACOB L ,  HOWARD ERNEST R ,  THOMAS SETH R

IPC: B32B15/01 ,  G01K5/66 ,  B32B15/00

CPC classification number: B32B15/011 ,  G01K5/66 ,  H01H2037/526 ,  H01H2037/528 ,  Y10S428/913 ,  Y10S428/925 ,  Y10T428/12507

Abstract: A THREE-LAYER COMPOSITE THERMOSTAT MATERIAL OF HIGH FLEXIVITY AND ELECTRICAL RESISTIVITY AND LOW COST IS SHOWN TO COMPRISE A LAYER OF METAL OF RELATIVELY HIGH COEFFICIENT OF THERMAL EXPANSION EMBODYING A CHROMIUM-NICKELIRON ALLOY AND A LAYER OF METAL OF RELATIVELY LOW COEFFICIENT OF THERMAL EXPANSION EMBODYING A NICKEL-IRON ALLOY, THESE METAL LAYERS BEING METALLCRIGICALLY BONDED TO OPPOSITE SIDES OF AN INTERMEDIATE METAL LAYER OF STAINLESS STEEL. THE RESISTIVITY, CORROSION RESISTANCE, STRENGTH, WORK-HARDENING PROPERTIES, AND ABILITY TO WITHSTAND HIGH TEMPERATURES OF THE INTERMEDIATE METAL LAYER COOPERATE WITH THE CORRESPONDING CHARACTERISTICS OF THE HIGH AND LOW EXPANSION MATERIALS BONDED THERETO TO PROVIDE AN ECONOMICAL, COMPOSITE THERMOSTAT MATERIAL HAVING A RESISTIVITY, FLEXIVITY, CORROSION RESISTANCE, USEFUL DEFLECTION TEMPERATURE RANGE, STRENGTH, AND ABILITY TO WITHSTAND HIGH TEMPERATURES COMPARABLE TO COMPOSITE THERMOSTAT MATERIALS PREVIOUSLY ACHIEVED ONLY AT SUBSTANTIALLY GREATER COST.