JPS5912118Y2 - Continuous casting mold - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a continuous casting mold in which thermocouples are provided at the upper and/or lower limit positions of the mold to detect passage of molten steel.

Continuous casting equipment requires a device to measure the level of molten steel in the mold in order to automate and save labor in the casting process.
BACKGROUND ART Conventionally, devices have been provided that measure the level of molten steel by attaching a sensor block (temperature measuring element) having a plurality of level measuring temperature measuring elements fixed to a mold copper wall using various methods.

This idea is as simple as attaching the temperature sensor for measuring the molten steel level and inserting a thermocouple between the joint surfaces of the mold wall members, which only needs to emit a signal for the passage of molten steel at the upper and/or lower limit positions of the mold. It is an object of the present invention to provide a continuous casting mold which can be installed in a convenient manner and has the function of obtaining an automatic start or upper limit emergency signal for continuous casting machine operation, and which can perform a wider range of level control.

This invention will be explained in detail below with reference to embodiments shown in the drawings.

1 is a wide side mold wall member made of copper or its alloy, and 2 is a narrow side mold wall member, and both members 1 and 2 are assembled in pairs facing each other to form a rectangular mold. .

In the joint surface between the narrow mold wall member 2 and the wide mold wall member 1, a notch groove 3 is provided near the upper and lower limit positions from the outer surface side to closer to the inner surface. The thermocouple 4 is inserted into the mold wall member 1, and the thermocouple 4 is narrowly attached to the wide side mold wall member 1.

In addition, a long groove 5 is carved in the molten steel side inner surface 2a of the narrow side mold wall member 2 along the vertical longitudinal direction, and bolt mounting holes 6 and long grooves are opened in the outer surface 2b in the upper and lower vicinity of the long groove 5. A conduit conductor insertion hole 7 is bored in the center of the groove 5, and a temperature measuring element 9, which has thermocouples 8 buried in parallel at a predetermined interval in a horizontal direction orthogonal to the vertical direction, is pushed into the long groove 5. The mold wall member 2 is fixed to the mold wall member 2 by screwing a bolt 10 into the mounting hole 6 from the back side.

A cooling fluid passage (not shown) is provided in the temperature sensing body 9, and cooling fluid is passed through a cooling pipe provided in the conduit through hole 7.

In the above embodiment, the thermocouple 4 is provided at both the upper limit position and the lower limit position of the mold, but it may be attached to either one.

Further, the thermocouple 4 may be combined with a molten steel level sensor other than the temperature measuring element 9, such as a gamma ray type, an electrode tracking type, etc.

In the mold having the above structure, passage of molten steel can be detected by the thermocouples 4 at the upper limit position and the lower limit position, and an automatic start or upper limit emergency signal for continuous casting machine operation can be obtained.

Moreover, the thermocouple 4 can be easily attached by simply being inserted between the joint surfaces of the mold wall members 1 and 2, and the structure is simple and can be easily implemented.

Furthermore, the temperature measuring element 9 with a plurality of embedded thermocouples 8 for measuring the molten steel level is manufactured separately from the mold wall member and is detachably attached to the mold wall member. The body can be precisely processed, increasing the accuracy of temperature measurement.

As described above, the present mold has the advantage of being able to measure the molten steel level and detect the passage of the molten steel, making it possible to control the level over a wider range, thereby automating the casting work and saving labor.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a mold showing an embodiment of the present invention, and FIG. 2 is a perspective view of essential parts. 1... Wide side mold wall member, 2... Narrow side mold wall member, 3... Notch groove, 4...
Thermocouple, 8...Bent thermocouple, 9...Temperature measuring element.

Claims (2)

[Scope of utility model registration request] (1) A continuous casting mold made of assembled mold wall members made of copper or its alloy, characterized in that a thermocouple is narrowly attached to the joint surface of the mold wall members at the upper and/or lower pouring limit positions. Mold for continuous casting. (2) Utility model registration The continuous casting mold according to Claim 1, characterized in that a temperature sensing element having a plurality of temperature sensing elements for measuring the level of molten steel is embedded in the mold wall member. template.