Furnace muffle for an annealing furnace
AssigneeSandvik Materials Technology Deutschland GmbH
InventorThomas Frobose
Life of this patent
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Abstract
A furnace muffle for an annealing furnace, the furnace muffle including a base body arranged to delimit a volume to be heated, at least one actuator connected to the base body in such a manner that the actuator, during the operation of the furnace muffle, can exert a force on the base body, at least one sensor arranged to detect a force exerted by the base body during the heating or cooling and/or a change in a length of the base body during the heating or cooling, and a control device connected to the actuator and the sensor, which is arranged so that during the operation of the furnace muffle, it controls the force exerted on the base body as a function of the force or change in length detected by the sensor.
Claims14
A furnace muffle for an annealing furnace comprising:
- a base body arranged to delimit a volume to be heated;
- at least one actuator connected to the base body such that the actuator, during the operation of the furnace muffle, is arranged to exert a tensile force on the base body;
- at least one sensor arranged to detect a force exerted by the base body during heating or cooling and/or a change in the length of the base body during the heating or cooling;
- and
- a control device connected to the actuator and to the sensor, arranged to, during the operation of the furnace muffle, control the tensile force exerted by the actuator on the base body as a function of the force or the change in length detected by the sensor.
A furnace muffle for an annealing furnace comprising:
- a base body arranged to delimit a volume to be heated, wherein the base body includes a first end with an inlet opening for a workpiece to be annealed and a second end facing the inlet opening;
- at least one actuator connected to the base body, the actuator being arranged, during the operation of the furnace muffle, to exert a tensile force on the base body exclusively from the first end or from the second end of the base body;
- at least one sensor arranged to detect a force exerted by the base body during heating or cooling and/or a change in the length of the base body during the heating or cooling;
- and
- a control device connected to the actuator and to the at least one sensor, arranged to, during the operation of the furnace muffle, control the tensile force exerted by the actuator on the base body as a function of the force or the change in length detected by the at least one sensor.
An annealing furnace comprising a furnace muffle including a base body arranged to delimit a volume to be heated, at least one actuator connected to the base body such that the actuator, during the operation of the furnace muffle, is arranged to exert a tensile force on the base body, at least one sensor arranged to detect a force exerted by the base body during heating or cooling and/or a change in the length of the base body during the heating or cooling, and a control device connected to the actuator and to the at least one sensor, the control device being arranged to, during the operation of the furnace muffle, control the tensile force exerted by the actuator on the base body as a function of the force or the change in length detected by the at least one sensor, wherein the annealing furnace is a conveyor furnace with a conveyor belt, wherein the conveyor belt extends in sections into the base body of the furnace muffle so that a workpiece on the conveyor belt can be conveyed into and out of the base body.
A method for operating a furnace muffle for an annealing furnace, the furnace muffle including a base body arranged so that the base body delimits a volume to be heated, comprising the steps:
- detecting a force exerted by the base body during the heating or cooling and/or a change in a length of the base body with at least one sensor;
- exerting a tensile force on the base body with at least one actuator connected to the base body;
- and
- controlling the tensile force exerted by the actuator on the base body as a function of the force or change in length detected by the sensor with a control device.
Dependencies are inferred from the claim text.