TWI681831B - Temperature monitoring system and method for monitoring temperature - Google Patents

Abstract

A temperature monitoring system is described, which is suitable to monitor temperature of at least one slab on the at least one strand of a continuous casting machine. The temperature monitoring system includes two temperature detecting devices, a temperature monitoring device, a processing and judging unit and a cooling-adjusting unit. The temperature detecting devices are respectively disposed above two opposite sides of an extending direction of the strand. The temperature detecting devices are configured to obtain temperatures on an upper surface and two opposite side surfaces of the slab. The processing and judging unit is signally connected to the temperature detecting devices. The processing and judging unit is configured to judge whether the detected temperature comply with requirements, so as to generate a judging result. The cooling-adjusting unit is signally connected to a cooling spray apparatus of the continuous casting machine. The cooling-adjusting unit is configured to adjust a cooling mode of the cooling spray apparatus according to the judging result.

Description

Temperature monitoring system and temperature monitoring method

The invention relates to a temperature monitoring system and a temperature monitoring method, and in particular to a temperature monitoring system and a temperature monitoring method for a continuous casting machine.

The continuous casting process is one of the important processes in general steel mills. The molten steel that enters the mold is cooled by copper mold heat to form a primary shell, and then the shell is cast on the surface of the casting blank by water spray or air spray in the casting channel. With secondary cooling, the embryo shell is gradually thickened, so that the embryo shell is completely solidified into a cast embryo.

The casting shell will be subjected to thermal stress and mechanical stress in the casting channel. If the total stress is too large, cracks will appear on the surface of the casting blank. Among them, the thermal stress is generated when the cast embryo shell is cooled down during the secondary cooling step. The secondary cooling system in the casting channel mainly includes several cooling areas, and each cooling area contains more than a dozen water spray nozzles. If the secondary cooling system is set abnormally or the water spray nozzle is damaged, the cooling will be abnormal, which will cause the casting blank Excessive thermal stress is formed on the surface, resulting in the formation of cracks on the surface of the casting blank.

However, since the primary cracks are usually small, they are also very It is difficult to observe or detect, so there is currently no effective monitoring technology to improve the problem of surface crack generation in the casting blank in the casting channel. Furthermore, the current secondary cooling control system of the casting machine mainly monitors the water volume or water pressure in a partitioned manner, but since each secondary cooling zone contains multiple water spray nozzles, it is more difficult to monitor and the maintenance cost is also Higher.

Therefore, one object of the present invention is to provide a temperature monitoring method and temperature monitoring system for a continuous casting machine, which can immediately control the cooling status of the casting blank, and further control the water spraying status of the secondary cooling device, thereby adjusting the casting blank Cooling mechanism to reduce the incidence of surface defects and control the quality of casting embryos.

According to the above object of the present invention, a temperature monitoring system is proposed. The temperature monitoring system is suitable for monitoring the temperature of at least one casting blank on at least one casting pass of a continuous casting machine. The temperature monitoring system mainly includes two temperature measuring devices, a processing judgment unit and a cooling adjustment unit. The temperature measuring devices are respectively arranged above two opposite sides of the extending direction of at least one casting channel. Wherein, the temperature measuring device is configured to obtain the temperature values of the upper surface of the casting blank and the two opposite sides connected to the upper surface. The signal of the processing judgment unit is connected to the temperature measuring device, and the processing unit is configured to judge whether the temperature of the casting blank meets the demand according to the temperature value, and then obtain the judgment result. The signal of the cooling adjustment unit is connected to the processing judgment unit and the cooling water spray device of the continuous casting machine. The cooling adjustment unit is configured to adjust the water spray mode of the cooling water spray device according to the judgment result.

According to an embodiment of the present invention, the above temperature measuring device With temperature detection surface, the temperature detection surface and the horizontal plane have an angle. Among them, the horizontal plane is parallel to the plane where the casting embryo is located.

According to an embodiment of the invention, the angle of the aforementioned angle is 30 degrees to 60 degrees.

According to an embodiment of the invention, the scanning angle of the temperature measuring device is 40 degrees to 80 degrees, and the scanning frequency is 10 Hz to 150 Hz.

According to an embodiment of the present invention, the above-mentioned processing judgment unit further includes a data processing unit and an abnormality diagnosis unit which are signal-connected to the data processing unit. The data processing unit is configured to convert the temperature value into temperature pattern data corresponding to the casting blank. The abnormality diagnosis unit is configured to judge whether the temperature value of the casting blank exceeds a reference value, and the judgment result is obtained. If the judgment result is yes, an adjustment signal is generated and sent to the cooling adjustment unit.

According to an embodiment of the invention, the above-mentioned continuous casting machine further includes a tracking system. The tracking system is configured to record the casting embryo information of the casting embryo, and can track the position of the casting embryo on the casting path. The processing judgment unit further includes an information combining unit, a signal connection abnormality diagnosis unit, and the information combining unit is configured to combine the temperature value of the casting blank into the corresponding casting blank information.

According to an embodiment of the present invention, the above-mentioned abnormality diagnosis unit is configured to divide the upper surface and the side of the casting blank into a plurality of regions according to the temperature pattern data of the casting blank, and the maximum temperature measured in these regions is used as a representative The temperature of the area.

According to the above object of the present invention, another temperature monitoring method is provided. This temperature monitoring method is suitable for monitoring the temperature of the casting blank on the casting path of the continuous casting machine. The temperature monitoring method includes the following steps. Separate the two temperature measuring devices It is arranged above the two opposite sides of the extending direction of the casting channel. The temperature measurement device is used to perform the measurement step to obtain the temperature values of the upper surface of the casting blank and the two opposite sides connected to the upper surface. A judgment step is performed to judge whether the temperature of the casting blank meets the demand according to the temperature value, and then obtain the judgment result. An adjustment step is performed to adjust the water spray mode of the cooling water spray device of the continuous casting machine according to the judgment result.

According to an embodiment of the present invention, each of the aforementioned temperature measuring devices has a temperature detection surface, and the temperature detection surface has an angle with the horizontal mask. Among them, the horizontal plane is parallel to the plane where the casting embryo is located.

According to an embodiment of the invention, the angle of the aforementioned angle is 30 degrees to 60 degrees.

It can be seen from the above that the temperature monitoring system and the temperature monitoring method of the present invention mainly use the method of providing temperature measuring devices obliquely above the opposite sides of the casting channel, and at the same time obtain the temperature information on the upper surface and side surfaces of the casting blank on the casting channel. Furthermore, the cooling state of the casting blank can be mastered and the cooling mechanism of the casting blank can be adjusted accordingly, so as to reduce cracks or other defects on the surface of the casting blank. On the other hand, the temperature monitoring system of the present invention can also be combined with the tracking system of the continuous casting machine to combine the temperature information with the casting blank information, thereby providing subsequent casting blank monitoring and serving as a reference for adjusting related conditions of the continuous casting machine.

100‧‧‧Temperature monitoring system

111‧‧‧ First temperature measuring device

111a‧‧‧Temperature detection surface

112‧‧‧Second temperature measuring device

112a‧‧‧Temperature detection surface

120‧‧‧Processing judgment unit

121‧‧‧Data processing unit

122‧‧‧ Abnormal diagnosis unit

123‧‧‧ Information integration unit

130‧‧‧cooling adjustment unit

200‧‧‧Temperature monitoring method

210‧‧‧Step

220‧‧‧Step

230‧‧‧Step

240‧‧‧Step

A1‧‧‧The first casting road

A2‧‧‧Second Casting Road

D1‧‧‧Distance

S1‧‧‧The first embryo

S11‧‧‧Left side

S12‧‧‧Top surface

S13‧‧‧right side

S2‧‧‧Second casting embryo

S21‧‧‧Left side

S22‧‧‧right side

S23‧‧‧Top surface

α1‧‧‧ Scanning angle

α2‧‧‧ Scanning angle

θ1‧‧‧The first angle

θ2‧‧‧Second included angle

For a more complete understanding of the embodiment and its advantages, reference is now made to the following description made in conjunction with the accompanying drawings, in which: [FIG. 1] is a schematic diagram showing a device of a temperature monitoring system according to an embodiment of the present invention; [FIG. 2] is a temperature diagram of a first casting blank on a first casting pass and a second casting blank on a second casting pass [FIG. 3] is a schematic diagram of the relationship between the position of each region on the first casting blank and temperature; and [FIG. 4] is a schematic flowchart of a temperature monitoring method according to an embodiment of the present invention.

Directional terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", etc., are only for the directions referring to the attached drawings. Therefore, the directional terms used are for illustration, not for limiting the invention.

Please refer to FIG. 1 first, which is a schematic diagram of a temperature monitoring system according to an embodiment of the present invention. The temperature monitoring system 100 of this embodiment is suitable for monitoring at least one casting blank (such as the first casting blank S1 and the first casting blank on the at least one casting pass (eg, the first casting pass A1 and the second casting pass A2) of a continuous casting machine The temperature of S2). The temperature monitoring system 100 of this embodiment mainly includes two temperature measuring devices (such as a first temperature measuring device 111 and a second temperature measuring device 112), a processing judgment unit 120, and a cooling adjustment unit 130. The temperature measurement device and the cooling adjustment unit 130 are connected to the signal processing and determination unit 120. The processing judgment unit 120 can receive and process the temperature measured by the temperature measuring device, and can further judge whether the temperature value meets the demand, and then send a control signal to the cooling adjustment unit 130 to further control the continuous casting The spray pattern of the cooling spray device of the machine. In one embodiment, the temperature monitoring system 100 of the present invention can be implemented in a continuous casting straightening zone, but not limited to this zone.

In this embodiment, the temperature measuring device is mainly used to measure the temperature of the casting blank located on the casting channel. As shown in FIG. 1, the first temperature measuring device 111 and the second temperature measuring device 112 are respectively disposed above the outer sides of the first runner A1 and the second runner A2. In an embodiment, the temperature measurement range of the first temperature measurement device 111 and the second temperature measurement device 112 is about 400°C to 1200°C, the measurement error is less than 5°C, and the first temperature measurement device 111 and The scanning angles α1 and α2 of the second temperature measuring device 112 cover both the first casting pass A1 and the second casting pass A2. In one example, the scanning frequency of the first temperature measuring device 111 and the second temperature measuring device 112 is about 10 Hz to 150 Hz, and the scanning angles α1 and α2 may be 40 degrees to 80 degrees. In addition, in some application examples, the distance between the installation position of the first temperature measuring device 111 and the second temperature measuring device 112 and the object to be measured is greater than 1 meter, so as to be away from the environment of high-temperature radiation, and to avoid moisture interference. In a specific example, the first temperature measuring device 111 and the second temperature measuring device 112 may be infrared temperature detectors.

In one embodiment, the first temperature measurement device 111 has a temperature detection surface 111a, and the second temperature measurement device 112 has a temperature detection surface 112a. The temperature detection surface 111a and the plane of the first casting blank S1 have a first angle θ1, and the temperature detection surface 112a and the plane of the second casting blank S2 have a second angle θ2. Thereby, the first temperature measuring device 111 can simultaneously measure the left side surface S11 and the upper surface of the first casting blank S1 located on the first casting pass A1 The temperature of S12 and the temperature of the left side surface S21 of the second casting blank S2 located on the second casting pass A2, and the second temperature measuring device 112 can simultaneously measure the second casting blank S2 located on the second casting pass A2 The temperature of the right side surface S22 and the upper surface S23, and the temperature of the right side surface S13 of the first casting blank S1 located on the first casting pass A1.

For the sake of clarity, the foregoing embodiments are described using two casting channels as examples, but this is not intended to limit the present invention. In other application examples, when there is only one casting channel, the first temperature measuring device 111 and the second temperature measuring device 112 are respectively disposed above the two opposite sides of the extending direction of the casting channel, and the first temperature measuring device The scanning range of 111 and the second temperature measuring device 112 exceeds the width range of at least one casting blank. For example, the linear measuring width range of the first temperature measuring device 111 and the second temperature measuring device 112 is greater than 2 meters. In another application example, when the number of runners is more than three (for example, the first runner, the second runner, and the third runner are arranged in sequence), the first temperature measuring device 111 and the second temperature measuring device 112 can be respectively arranged outside the first casting channel and the third casting channel, so as to achieve the common measurement of the temperature of the casting blanks respectively located on the first casting channel, the second casting channel and the third casting channel.

After the temperature of the first mold blank S1 and the second mold blank S2 is measured by the first temperature measuring device 111 and the second temperature measuring device 112, the measured temperature data can be transmitted to the processing judgment unit 120. The processing judgment unit 120 is configured to judge whether the temperatures of the first casting blank S1 and the second casting blank S2 meet the requirements according to the measured temperature value, and then obtain a judgment result. In an embodiment, the processing judgment unit 120 includes a data processing unit 121, an abnormality diagnosis unit 122, and an information combining unit 123. Data processing unit 121 configuration In order to process the received temperature data, the abnormality diagnosis unit 122 is configured to perform a judging step to respectively judge whether the temperature values of the first casting blank S1 and the second casting blank S2 exceed a reference value to obtain a judgment result.

As shown in FIG. 1, in a specific example, the data processing unit 121 first graphically maps the temperature values of the first casting blank S1 on the first casting pass A1 and the second casting blank S2 on the second casting pass A2 Display. For example, as shown in FIG. 2, FIG. 2 is the temperature pattern data of the first casting blank S1 on the first casting pass A1 and the second casting blank S2 of the second casting pass A2. When the first temperature measuring device 111 measures the temperature of the left side surface S11 and the upper surface S12 of the first casting blank S1 located on the first casting pass A1, and the left side of the second casting blank S2 located on the second casting pass A2 The temperature of the surface S21, and the second temperature measuring device 112 measures the temperature of the right side surface S22 and the upper surface S23 of the second casting blank S2 on the second casting pass A2, and the first on the first casting pass A1 After the temperature of the right side surface S13 of the casting blank S1, the data processing unit 121 can convert the temperature value into the pattern shown in FIG. 2. The gray scale in Fig. 2 from dark to light represents the temperature from lower to higher. As shown in Fig. 2, the surface temperature of the first casting blank S1 on the first casting pass A1 is higher than that of the left and right sides The upper surface temperature of the first casting blank S2 on the second casting pass A2 is also higher than that of the left and right sides.

After the data processing unit 121 converts the temperature value into the mold temperature pattern data as shown in FIG. 2, the abnormality diagnosis unit 122 performs a judgment step. In this embodiment, the judgment step is to divide the upper surface S12, the left side surface S11, and the right side surface S13 of the first mold blank S1 into several areas (for example, n areas) based on the temperature pattern data of the first mold blank S1. To produce the schematic diagram shown in FIG. 3. Please refer to Figure 3, which is the area on the first casting embryo Schematic diagram of the relationship between location and temperature. As shown in FIG. 3, the left side surface S11 of the first casting blank S1 may be defined as the first area, the upper surface S12 of the first casting blank S1 may be divided into (n-2) areas, and the first casting blank S1 may be The right side S13 is defined as the nth zone. Then, the maximum temperature value measured in each area is used as the temperature representing the area. For example, the left side of the first casting blank in FIG. 3 is the first area, and several temperature values can be measured at different positions in the first area, and these temperature values are measured in the first area. The maximum value represents the temperature in zone 1. For the sake of clarity, the foregoing description is based on the first casting embryo S1 only. The judgment step can also generate a schematic diagram of the relationship between the position of each region on the second casting embryo and the temperature according to the temperature pattern data of the second casting embryo S2 to provide Use for subsequent procedures.

After obtaining the maximum temperature value measured in each area on the casting blank, the abnormality diagnosis unit 122 further determines whether the temperature value of the casting blank exceeds the reference value, and a judgment result is obtained. If the judgment result is yes, an adjustment signal is generated and sent to the cooling adjustment unit 130 to further control the water spray mode of the cooling water spray device of the continuous casting machine. In a specific example, it can be set that the casting blank continuously falls for 30 cm from 700°C to 900°C (brittle zone) as an abnormality. When the abnormality diagnosis unit 122 determines that the casting blank is abnormal, an adjustment signal is generated and sent to the cooling adjustment unit 130. In addition, after the abnormality diagnosis unit 122 obtains a result of whether the casting blank is abnormal, the information combining unit 123 may further integrate the temperature value information of the casting blank and the abnormality judgment result into a tracking system provided on a general continuous casting machine to mark the casting blank. In a specific example, the tracking system on the continuous casting machine is mainly used to record the casting blank information, and can track the location of the casting blank on the casting pass. With this, after the information combining unit 123 combines the temperature value of the casting blank and the abnormal judgment result into the corresponding casting blank information in the tracking system, the cooling adjustment unit 130 The cooling water spray device of the continuous casting machine can be further controlled according to the abnormal judgment result to change the water spray volume of the cooling water spray device for slow cooling to avoid the temperature of the casting blank falling into the brittle temperature range. On the other hand, for abnormal casting embryos that may occur, additional settings can be made to change the walking path of casting embryos, or arrange for on-line inspection or burning operations.

In a specific application example, as shown in FIG. 1, the first temperature measuring device 111 and the second temperature measuring device 112 may be respectively disposed on two opposite sides of the two casting channels. The distance D1 between the two casting channels is about 6800 mm, and the temperature detection surface 111a of the first temperature measuring device 111 is inclined by 40 degrees to 45 degrees relative to the casting blank. Wherein, the first temperature measuring device 111 and the second temperature measuring device 112 are respectively about 3 meters (precision ± 2 degrees) from the casting blank, and the temperature range is about 600°C to 1400°C. Among them, the processing judgment unit 120 divides the cast embryo into 14 zones (n=14), where the left and right sides of the cast embryo are the first zone and the 14th zone, and the upper surface is divided into 12 zones, and the temperature of each zone is taken The maximum value represents the temperature information in this area to further determine whether the temperature of the casting blank is abnormal. When an abnormality occurs, the processing judgment unit 120 further generates an adjustment signal to the cooling adjustment unit 130, so that the cooling adjustment unit 130 controls the water spray mode to avoid the temperature of the casting blank falling in the brittle region of 700°C to 900°C. In addition, in an exemplary example, the temperature monitoring system of the present invention can reduce the probability of temperature anomalies from 55.1% to 11.4%, and the defect occurrence rate from 3.7% to 1.0%.

Please also refer to FIGS. 1 and 4 at the same time, wherein FIG. 4 is a schematic flowchart of a temperature monitoring method according to an embodiment of the present invention. The temperature monitoring method 200 of this embodiment uses the temperature monitoring system 100 to monitor at least one casting pass of the continuous casting machine (eg, the first casting pass A1 and the second casting pass A2) The temperature of at least one of the cast embryos (for example, the first cast embryo S1 and the second cast embryo S2). The temperature monitoring method 200 includes the following steps. First, step 210 is performed, and two temperature measuring devices (such as the first temperature measuring device 111 and the second temperature measuring device 112 in FIG. 1) are respectively disposed on opposite sides of the extending direction of at least one casting pass. For example, the first temperature measuring device 111 and the second temperature measuring device 112 are installed above the outer sides of the first casting path A1 and the second casting path A2, respectively. Next, step 220 is performed to perform a measurement step to use the first temperature measurement device 111 and the second temperature measurement device 112 to simultaneously obtain the temperature values of the upper surface and the two side surfaces of the first casting blank S1 and the second casting The temperature value of the upper surface and the two sides of the embryo S2.

After step 220 is performed, step 230 is then performed to perform the determination step. The judgment step is to judge whether the temperature of the casting blank meets the demand according to the measured temperature value, and then obtain a judgment result. Specifically, the judgment step is to use the processing judgment unit 120 of the temperature monitoring system 100 to convert the temperature value into the temperature pattern data of the casting blank as shown in FIG. 2, and then further analyze the temperature of the casting blank from the temperature pattern data of the casting blank Whether the value exceeds a reference value. When it is found that the temperature value of the casting blank has exceeded the reference value, the processing and judgment unit 120 further generates an adjustment signal.

After step 230 is completed, step 240 is followed to perform the adjustment step. The adjustment step is to adjust the water spray mode of the cooling water spray device of the continuous casting machine according to the judgment result obtained in the judgment step (going to step 220).

It can be known from the above embodiments of the present invention that the temperature monitoring system and the temperature monitoring method of the present invention mainly use the method of providing temperature measurement devices obliquely above the opposite sides of the casting channel, and at the same time obtain the table above the casting blank on the casting channel The temperature information of the surface and the side, and then grasp the cooling state of the casting blank and can correspondingly adjust the cooling mechanism of the casting blank to reduce cracks or other defects on the surface of the casting blank. On the other hand, the temperature monitoring system of the present invention can also be combined with the tracking system of the continuous casting machine to combine the temperature information with the casting blank information, thereby providing subsequent casting blank monitoring and serving as a reference for adjusting related conditions of the continuous casting machine.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

100‧‧‧Temperature monitoring system

111‧‧‧ First temperature measuring device

111a‧‧‧Temperature detection surface

112‧‧‧Second temperature measuring device

112a‧‧‧Temperature detection surface

120‧‧‧Processing judgment unit

121‧‧‧Data processing unit

122‧‧‧ Abnormal diagnosis unit

123‧‧‧ Information integration unit

130‧‧‧cooling adjustment unit

A1‧‧‧The first casting road

A2‧‧‧Second Casting Road

D1‧‧‧Distance

S1‧‧‧The first embryo

S11‧‧‧Left side

S12‧‧‧Top surface

S13‧‧‧right side

S2‧‧‧Second casting embryo

S21‧‧‧Left side

S22‧‧‧right side

S23‧‧‧Top surface

α1‧‧‧ Scanning angle

α2‧‧‧ Scanning angle

θ1‧‧‧The first angle

θ2‧‧‧Second included angle

Claims (10)

A temperature monitoring system is suitable for monitoring the temperature of at least one casting blank on at least one casting pass of a continuous casting machine. The temperature monitoring system includes: two temperature measuring devices, which are respectively arranged opposite to the extending direction of the at least one casting pass Two sides above, wherein one of the temperature measuring devices is configured to obtain an upper surface of the at least one casting blank and the two of the opposite side surfaces connected to the upper surface that face the temperature measuring devices Side temperature value, the other of the temperature measuring devices is configured to obtain the temperature value of the other of the two side surfaces of the at least one casting blank; a processing judgment unit, the signal is connected to the temperature values Measuring device, the processing unit is configured to determine whether the temperature of the at least one casting blank meets the demand based on the temperature values, and thereby obtain a judgment result; and a cooling adjustment unit, the signal is connected to the processing judgment unit and one of the continuous casting machines For cooling the water spray device, the cooling adjustment unit is configured to adjust the water spray mode of the cooling water spray device according to the judgment result. The temperature monitoring system as described in item 1 of the patent application scope, wherein each of the temperature measuring devices has a temperature detection surface, and the temperature detection surface has an angle with a horizontal mask, wherein the horizontal plane is parallel to the at least one The plane where the embryo is cast. The temperature monitoring system as described in item 2 of the patent application scope, wherein the angle of each of these included angles is 30 degrees to 60 degrees. The temperature monitoring system as described in item 2 of the patent application scope, wherein the scanning angle of each of these temperature measuring devices is 40 degrees to 80 degrees, and the scanning frequency is 10 Hz to 150 Hz. The temperature monitoring system as described in item 1 of the patent application scope, wherein the processing judgment unit further includes: a data processing unit configured to convert the temperature values into temperature pattern data corresponding to at least one casting blank; and a An abnormality diagnosis unit, a signal is connected to the data processing unit, and the abnormality diagnosis unit is configured to determine whether the temperature value of the at least one casting blank exceeds a reference value, and the determination result is obtained, and if the determination result is yes, an adjustment signal is generated And sent to the cooling adjustment unit. The temperature monitoring system as described in item 5 of the patent application scope, wherein the continuous casting machine further includes a tracking system configured to record casting information of one of the at least one casting blank and track the at least one casting blank A position on the at least one casting path; and the processing and judging unit further includes an information combining unit, the signal is connected to the abnormality diagnosis unit, and the information combining unit is configured to combine the temperature value of the at least one casting blank to the corresponding casting blank Information. The temperature monitoring system as described in item 5 of the patent application scope System, wherein the abnormality diagnosis unit is configured to divide the upper surface and the side surfaces of the at least one cast embryo into a plurality of areas based on the temperature pattern data of the at least one cast embryo, and the measured values in the areas The maximum temperature is used to represent the temperature of the area. A temperature monitoring method is suitable for monitoring the temperature of at least one casting blank on at least one casting pass of a continuous casting machine. The temperature monitoring method includes: disposing two temperature measuring devices respectively opposite to the extending direction of the at least one casting pass Two sides above; using the temperature measuring devices to perform a measuring step, including using one of the temperature measuring devices to obtain an upper surface of the at least one casting blank and two opposite sides connected to the upper surface Facing the temperature value of the temperature measuring device and using the other one of the temperature measuring devices to obtain the temperature value of the other one of the two sides of the at least one casting blank; making a judgment Steps, to determine whether the temperature of the at least one casting blank meets the demand according to the temperature values, and obtain a judgment result; and perform an adjustment step to adjust the water spray of a cooling water spray device of the continuous casting machine according to the judgment result mode. The temperature monitoring method as described in item 8 of the patent application scope, wherein each of the temperature measuring devices has a temperature detection surface, and the temperature detection surface has an angle with a horizontal mask, wherein the horizontal plane is parallel to the at least one The plane where the embryo is cast. The temperature monitoring method as described in item 9 of the patent application scope, wherein the angle of each of these included angles is 30 degrees to 60 degrees.

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