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SEDIMMEC
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SEDIMMEC
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Priority to FR7011795ApriorityCriticalpatent/FR2082900A5/en
Application grantedgrantedCritical
Publication of FR2082900A5publicationCriticalpatent/FR2082900A5/en
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B3/00—Ohmic-resistance heating
H05B3/02—Details
H05B3/06—Heater elements structurally combined with coupling elements or holders
H—ELECTRICITY
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B3/00—Ohmic-resistance heating
H05B3/62—Heating elements specially adapted for furnaces
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Pressure Welding/Diffusion-Bonding
(AREA)
Abstract
Heating elements formed of a number of refractory metal rods of e.g. W, Ta, Mo or an alloy of these and joined to refractory metal connection elements. The connectors are made by annealing powder refractory metal at a temp. below that at which complete shrinkage occurs e.g. at 1200 - 1300 degrees C and the rods are then inserted into holes in the connectors and a second anneal pref. in a vacuum takes place at a temp. > the first e.g. 1450 - 1500 degrees C to complete shrinkage of the connectors and cause them to grip the rods. The refractory metal powder has an addition of 0.5 - 3.0 wt.% of Ni either pure or with Cu or Ce which pass through a liquid phase during annealing.
FR7011795A1970-03-271970-03-27Heating devices of refractory metal rods - with rods connectors which stop local overheating
ExpiredFR2082900A5
(en)
Properties of columbium alloy d-43/cb-10 w-1 zr- 0. 1 c/(High temperature solution treatment and aging of niobium alloy for optimum strength, ductility and thermal stability)
The mutual diffusion of titanium with copper and other metals as applicable to the soldered compounds(Kinetic process of mutual diffusion between titanium with copper and other metals serving as galvanic coatings)
Stability of tungsten and molybdenum surfaces heat-treated in an atmosphere of oxygen and water vapor(Improved etch stability of tungsten and molybdenum crystals by heat treatment in oxygen or water vapor)
Increase in creep resistance of the alloy EI-437 B by means of a thermovibrational treatment under conditions of stress relaxation(Creep resistance increase of Ni refractory alloy by thermovibrational treatment under stress relaxation conditions)
Effect of thermomechanical treatment on the properties of the V 96 ts alloy(Thermomechanical treatment effect on mechanical properties of high strength Al-Mg-Zn-Cu alloys, considering subsequent aging and state before deformation)
Deformation of high melting point metals and alloys in vacuum at high temperatures(Deformation studies of high melting point metals and alloys at high temperatures in vacuum, noting crack formation resistance and annealing time variations)
Phase equilibria and certain properties of alloys of the Ti-Al-Zr-Mo-Fe system(Vertical phase diagrams of Ti-Al-Zr-Mo-Fe alloy system at varying Fe concentrations, showing structural hardening after quenching)
Heat resistance of alloys of the Ti-Cu system(Heat resistance of cast, forged and annealed Ti-Cu alloys, discussing forged alloys mechanical properties as function of chemical composition and temperature)
Investigation of nitrogen diffusion in titanium(Nitrogen diffusion coefficients in TiN and alpha-Ti determined by metallographic and roentgenographic analyses, establishing linear equations for temperature dependence)
Dislocation theory of hydrogen brittleness of titanium alloys(Hydrogen brittleness of titanium alloy treated by dislocation theory, noting crack formation and hydrogen flow)
Cold brittleness of the VT 15 alloy caused by dissolved hydrogen(Dissolved hydrogen effects on mechanical properties, modulus of elasticity, lattice constants and X ray lines of Ti alloys, showing cold brittleness at high strain rates)
Effect of plastic deformation on the physical and mechanical properties during aging of phase-hardened austenitic Fe-Ni-Ti alloy(Plastic deformation combined effect with aging on mechanical properties of phase-hardened austenitic Fe-Ni-Ti alloys)