Thermal treatment method for micromechanical horological parts
AssigneeNivarox-FAR S.A.
InventorsChristian Charbon, Alexandre Fussinger
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Abstract
Thermal treatment method for a micromechanical horological component derived from the LIGA method and exhibiting very low thermal inertia, said method including the step which consists in locally heating one area of the micromechanical horological component to increase hardness by local phase modification, the component being heated for a sufficiently short time that only the locally heated area is affected by the thermal treatment, the phase of the untreated portions of the component remaining unchanged.
Claims19
A thermal treatment method for a micromechanical horological component derived from the LIGA method and exhibiting very low thermal inertia, said method including:
- locally heating an area of the micromechanical horological component to increase the hardness of the component by local phase modification, wherein the local heating is performed for a time sufficient to only affect the locally heated area and the phase of the untreated portions of the component remain unchanged,
- wherein the micromechanical horological part derived from the LIGA method is made of nickel, a nickel and phosphorus alloy, a nickel and tungsten alloy, or a nickel and iron alloy, and
- wherein the hardness of the component that is locally heated increases by a factor of about 2.
A thermal treatment method for a micromechanical horological component derived from the LIGA method and exhibiting very low thermal inertia, said method including:
- locally heating an area of the micromechanical horological component to increase the hardness of the component by local phase modification, wherein the local heating is performed for a time sufficient to only affect the locally heated area and the phase of the untreated portions of the component remain unchanged,
- wherein the micromechanical horological part derived from the LIGA method is made of a nickel and tungsten alloy.
A thermal treatment method for a micromechanical horological component derived from the LIGA method and exhibiting very low thermal inertia, said method including:
- locally heating an area of the micromechanical horological component to increase the hardness of the component by local phase modification, wherein the local heating is performed for a time sufficient to only affect the locally heated area and the phase of the untreated portions of the component remain unchanged,
- wherein the micromechanical horological part derived from the LIGA method is made of a nickel and iron alloy.
A thermal treatment method for a micromechanical horological component derived from the LIGA method and exhibiting very low thermal inertia, said method including:
- locally heating an area of the micromechanical horological component to increase the hardness of the component by local phase modification, wherein the local heating is performed for a time sufficient to only affect the locally heated area and the phase of the untreated portions of the component remain unchanged,
- wherein the micromechanical horological part derived from the LIGA method is made of nickel, a nickel and phosphorus alloy, a nickel and tungsten alloy, or a nickel and iron alloy, and
- wherein the horological component derived from the LIGA method is amorphous and non-magnetic.
Dependencies are inferred from the claim text.