JPH0723092Y2 - Continuous casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a continuous casting apparatus, and more particularly to an apparatus capable of measuring the electrical conductivity of a cast body.

"Prior Art" Generally, in a continuous casting apparatus, as shown in FIG. 2, a molten metal is poured into a mold 1 to harden an outer shell, which is then pinched by a pinch roller 2
It is water-cooled and solidified while being pulled downward by, and is further clamped by the cutting device 3 and cut into a predetermined length to obtain a product. The cutting device 3 has a plurality of air cylinders 4 ... Arranged at a position sandwiching the cast body T, and a clamp head 5 for holding the cast body T at the tip of 4a is attached to the cylinder shaft of each air cylinder 4. It is composed of a clamp portion 6 and a cutting wheel 9 which is rotated by a motor 7 and is moved by a cylinder 8 to cut the cast body T. In the figure, reference numeral 10 is an oil motor that is a rotational drive source of the pinch roller 2, 11 is a drive gear that rotates the pinch roller 2, and 12 is an air cylinder that horizontally moves the pinch roller 2.

By the way, there is a case where phosphorus is added at a constant concentration when performing continuous casting of copper by the continuous casting apparatus having the above configuration. In this case, in order to keep the phosphorus concentration constant, the phosphorus concentration is measured and based on this measurement value, the shortage of phosphorus is added, but conventionally, the measurement of the phosphorus concentration is
This was performed by sampling analysis in which the melt upstream of the mold 1 was sampled at regular intervals.

"Problems to be solved by the invention" However, in the above-mentioned conventional technique, since sampling is performed every hour, it is impossible to control the phosphorus concentration of each cut product, and at the same time, sampling is performed. The current situation is that analysis takes time and labor, and for this reason, the sampling frequency can be set only every hour.

Therefore, it is conceivable to attach a sensor for automatic conductivity measurement in the vicinity of the pinch roller 2 shown in FIG. 2 and measure the phosphorus concentration based on the measured value of this conductivity meter.
In this case, it is possible to control the phosphorus concentration for each product, but since the cast body T moves because of continuous casting, misalignment easily occurs between the cast body T and the sensor. For this reason, it is difficult to accurately measure the phosphorus concentration, and a device for bringing the sensor into and out of contact with the cast body T is newly required, which causes a problem that the installation space is wide.

"Purpose of Invention" The present invention has been made in view of the above circumstances, and an object thereof is to provide a continuous casting apparatus capable of easily and accurately measuring the phosphorus concentration of each cast or cut product. There is.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the continuous casting apparatus of the present invention uses a cast body T when cutting a cast body continuously cast by a mold into a predetermined length. A recess is formed in the clamp head of the clamp portion that holds the cast body, and a sensor for measuring the conductivity of the cast body is provided in the recess.

[Operation] In the continuous casting apparatus of the present invention, every time the clamp head holds the cast body during cutting of the cast body, the sensor is pressed against the surface of the cast body (product) to be cut and the conductivity thereof is maintained. The rate is measured, and the clamp head holds the casting until the cutting is completed and does not separate from or shift from the casting (product). Can be automatically and easily and accurately measured.

"Embodiment" FIG. 1 shows an embodiment of the continuous casting apparatus of the present invention. The continuous casting apparatus shown in this figure is provided with a sensor for measuring the electric conductivity of the cast body T in the clamp portion 6 of the continuous casting apparatus shown in FIG. 2, and since the other configurations are the same, this portion Is omitted.

As shown in FIG. 1, an air cylinder 4 forming a clamp portion 6 is fixed to a wall portion of the cutting device 3. The cylinder shaft 4a of the air cylinder 4 has a through hole formed in the wall.
It projects from 20 toward the cast body T, and a cylindrical convex portion 4b is formed at the tip thereof. A cylindrical clamp head 21 is attached to the tip end of the cylinder shaft 4a by fitting a recess 21a formed in the base end surface thereof into the protrusion 4b. A recess 21b is formed in the center of the tip surface of the clamp head 21, that is, the surface contacting the cast body T. The recess 21b is connected to a conductivity meter and is connected to the cast body T.
The sensor 22 for measuring the conductivity is inserted so as to be movable in the axial direction with its tip surface slightly protruding from the tip surface of the clamp head 21. A spring 23 is interposed between the sensor 22 and the bottom surface of the recess 21b, and a resin plate 24 is attached to the tip surface of the sensor 22. These springs 23
The resin plate 24 is for protecting the sensor 22 by absorbing the impact when the clamp head 21 contacts the cast body T. A ring 25 is provided on the inner surface of the opening of the recess 21b.
Are fitted, and the ring 25 prevents the sensor 22 from deviating from the recess 21b.

In the continuous casting apparatus having the above configuration, the cast body T pulled out by the pinch roller 2 is
The product is manufactured by being clamped and held by the clamp heads 21 of the clamp portion 6 and cut into a predetermined length by the cutting wheel 9. At this time, the sensor 22 inserted into the recess 21b formed on the tip surface of the clamp head 21 is pressed against the surface of the product to be cut, and the conductivity thereof is measured.
Therefore, the conductivity, that is, the phosphorus concentration can be easily measured for each product to be cut, and the phosphorus concentration for each product can be easily managed.

Further, until the cutting is completed, the clamp head 21 of the clamp part 6 holds the cast body T and does not separate from or shift from the cast body T (product). Therefore, an accurate phosphorus concentration is measured. be able to.

Further, since the sensor 22 is provided on the clamp head 21 of the clamp unit 6 that comes in contact with and separates from the cast body T, a new device for bringing the sensor 22 into and out of the cast body T is not required, and the installation space for the continuous casting apparatus Can be equal to the conventional one.

In addition, since the spring 23 is interposed between the sensor 22 and the recess 21b and the resin plate 24 is attached to the tip end surface of the sensor 22, the shock when the clamp head 21 contacts the cast body T is absorbed. It is possible to protect the sensor 22 and prevent damage and failure of the sensor 22.

[Advantages of the Invention] As described above, according to the continuous casting apparatus of the present invention, a recess is formed in the clamp head of the clamp portion that presses against the cast body and holds the cast body, and the recess of the cast body Since a sensor for measuring conductivity is provided, each time the clamp head holds the casting when cutting the casting, the sensor presses the surface of the casting (product) to be cut and measures the conductivity. However, until the cutting is completed, the clamp head holds the cast body T and is not separated or displaced from the cast body (product). Therefore, the conductivity, that is, the phosphorus concentration can be automatically and easily measured for each product to be cut, and the phosphorus concentration for each product can be easily managed.

Further, since the sensor is provided in the concave portion formed in the clamp head that comes in contact with and separates from the casting, a new device for bringing the sensor into and out of the casting is not required, and the installation space of the continuous casting device is equal to the conventional one. can do.

[Brief description of drawings]

FIG. 1 is a sectional view showing an essential part of an embodiment of a continuous casting apparatus of the present invention, and FIG. 2 is a view showing a schematic configuration of a conventional continuous casting apparatus. T ... cast, 1 ... mold, 6 ... clamp part, 21 ...
Clamp head, 21b ... Recess, 22 ... Sensor.

Claims (1)

[Scope of utility model registration request] 1. A continuous casting device for holding a cast body continuously cast in a mold by a clamp portion provided downstream of the mold and cutting the cast body into a predetermined length, wherein the clamp portion is in contact with the cast body. The continuous casting apparatus is characterized in that a recess is formed in the clamp head and the recess is provided with a sensor for measuring the conductivity of the cast body.