Method for producing a metal plate having an embedded temperature sensor and metal plate produced thereby
AssigneeAlinox AG
InventorMarkus Spring
Life of this patent
Estimating the term…
Abstract
A method for producing a metal plate having at least one embedded the temperature sensor and to a metal plate produced by the method. The metal plate is produced from a plurality of layers or plate bodies, which are diffusion-connected to each other by thermal pretreatment and subsequent rolling. A sheathed thermocouple is rolled, as the temperature sensor, into the metal plate during the production of the metal plate, or a protective tube made of metal is rolled into the metal plate, into which protective tube a sheathed thermocouple can be inserted after the metal plate has been processed further to form a cooking vessel.
Claims12
A method for producing and processing a metal plate which is formed of plate bodies and provided or retrofittable with at least one embedded temperature sensor, the method comprising the steps of:
- a) arranging at least one metallic protective tube which is a sheath of a sheathed thermocouple or an empty tube into which the at least one temperature sensor is insertable after the production and, if required, processing of the metal plate between a first plate body and a second plate body which are not provided with recesses for accommodating the protective tube or each protective tube and which are made of aluminium or an aluminium alloy, respectively,
- b) embedding the protective tube or each protective tube, in direct contact, in the first and the second plate body by compression and material displacement of the first and the second plate body by rolling, and
- c) connecting the entire surfaces of the plate bodies,
- wherein the plate bodies are thermally pre-treated at a temperature which is higher than the recrystallisation temperature of aluminium or the aluminium alloy but lower than the melting point of aluminium and then pressed against each other by the rolling to accomplish the embedment of the protective tube or each protective tube in the plate bodies,
- wherein the plate bodies undergo mutual diffusion bonding in the area of their sides contacting each other, wherein the plate bodies are materially connected to each other and to the protective tube or each protective tube across the entire surface area to form the metal plate to be produced,
- reshaping the metal plate is into the cooking or frying vessel including a base and a wall extending upwards therefrom with a radius by thermoforming after rolling and in that then one end of the sheath or the protective tube is exposed on the outer side of the wall for an electrical connection of the at least one temperature sensor.
A cooking or frying vessel produced from a metal plate, provided or retrofittable with at least one embedded temperature sensor, the cooking or frying vessel comprising:
- at least one metallic protective tube which is a sheath of a sheathed thermocouple or an empty tube into which the at least one temperature sensor is insertable which is arranged between the first and the second plate body which are made of aluminium or an aluminium alloy, respectively, and were not provided with recesses for accommodating the protective tube or each metallic protective tube prior to the rolling,
- wherein the protective tube or each metallic protective tube is, in direct contact, embedded in the first and the second plate body, wherein the first and the second plate body are materially connected to each other and to the protective tube or each metallic protective tube across the entire surface area, and wherein all plate bodies have a mutual diffusion connection in the area of their contacting sides so that all plate bodies are materially connected to each other and to the protective tube or each metallic protective tube across the entire surface area to form the metal plate to be produced;
- wherein the metal plate was, by thermoforming, reshaped into the cooking or frying vessel having a base transitioning into a wall which extends upwards from the base with a radius and on the outer side of which one end of the sheath of the sheathed thermocouple or one end of the empty tube can be exposed for an electrical connection of the temperature sensor.
Dependencies are inferred from the claim text.