Thermocouple unit for casting ingot heating stove measuring aluminum ingot temperature

Abstract

The invention relates to a thermoelectric couple device of an ingot heating furnace measuring aluminum ingot temperature, comprising four thermoelectric couple threads, the two of which are made from nickel chromium, and another two are made from nisiloy; each nickel chromium couple thread and one nisiloy couple thread form a set of thermoelectric couple; all the thermoelectric couple threads are put in a heat-resistant steel thimble connected to a cylinder for sliding along a guide sleeve driven by the cylinder; a spring is set at the lower end of each thermoelectric couple thread so as to regulate the height thereof and accomplish soft landing contact measurement thereof with the lower surface of the flat aluminum ingot to be measured; when measuring the temperature, the cylinder drives the thermoelectric couple component to ascend and contact the lower surface of the flat aluminum ingot in the furnace, after contacting metal, the thermoelectric couple thread with two different materials are communicated to form a closed circuit so as to produce a temperature measuring signal. The invention has novel structure; the invention is convenient to install and flexible to use with accurate measuring result. The invention can be widely applied in the aluminum processing industry for flat ingot hot rolling front heating furnace.

Description

technical field [0001] The invention relates to a temperature measuring device on a heating furnace before flat ingot hot rolling in the aluminum processing industry, in particular to a thermocouple device for real-time monitoring of the surface temperature of the ingot in the furnace for the ingot heating furnace for hot rolling of aluminum strips. Background technique [0002] At present, in the aluminum ingot heating furnace supporting hot rolling, the ingot is pushed forward by the propulsion mechanism in the furnace, which brings great difficulties to the temperature measurement of the aluminum ingot, and it is impossible to realize the temperature control of the ingot heating process. At present, in actual production, we can only rely on on-site process exploration and empirical data, and indirectly realize the temperature control of the ingot by controlling the temperature of the furnace gas. There are many problems such as large temperature fluctuations of block ingo...

AI Technical Summary

Problems solved by technology

The traditional temperature measurement method is to manually measure the metal temperature outside the furnace with a hand-held thermocouple. Because the surface of the metal has a cooling phenomenon when the metal is out of the furnace, the temperature measurement is not true, the accuracy is low, and the manual operation is not safe.

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