CN216116411U - Temperature measuring system for metal heat treatment process - Google Patents
Temperature measuring system for metal heat treatment process Download PDFInfo
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- CN216116411U CN216116411U CN202121898795.4U CN202121898795U CN216116411U CN 216116411 U CN216116411 U CN 216116411U CN 202121898795 U CN202121898795 U CN 202121898795U CN 216116411 U CN216116411 U CN 216116411U
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Abstract
The utility model discloses a temperature measuring system for a metal heat treatment process, which comprises at least one group of thermocouple temperature measuring lines, wherein the positive and negative end heads of one end of each thermocouple temperature measuring line are respectively connected to a first target connecting point and a second target connecting point, and the first target connecting point and the second target connecting point are positioned on the surface of a workpiece or in the workpiece. The system provided by the application is used for measuring the temperature of the metal workpiece in the heat treatment process. The measuring process and the measuring result are not influenced by environmental factors, the surface state of the workpiece to be measured, obstacles and the like, and the measuring result is more accurate. The temperature of the surface of the workpiece can be measured, and the temperature of the interior of the workpiece can be measured. The actual temperature of the heat treated workpiece can be measured directly, rather than the temperature of the furnace atmosphere. The temperature of the workpiece in the whole heat treatment process can be accurately measured in real time, and the measurement comprises the heating, heat preservation and cooling stages.
Description
Technical Field
The utility model relates to the technical field of metal heat treatment, in particular to a temperature measuring system for a metal heat treatment process.
Background
The metal heat treatment process has extremely high requirements on temperature, and accurate temperature measurement and control are key factors for ensuring the heat treatment quality of the metal.
The heat treatment process typically comprises 3 stages of heating, holding and cooling. 1. The heat-treated workpiece was placed in a heat treatment furnace to be heated, and the temperature in the furnace was measured. 2. And after the temperature in the furnace meets the requirement, estimating the heat preservation time required by the metallographic structure transformation of the workpiece metal by using an empirical formula. 3. And when the time meets the requirement, cooling the workpiece, and finishing the heat treatment process.
The existing temperature measuring method in the metal heat treatment process comprises the following steps: 1. in the heating and heat preservation stage, an infrared thermometer is adopted to measure the temperature in the furnace through an observation window of the heat treatment furnace; 2. in the heating and heat preservation stage, a thermocouple temperature sensor is arranged in the heat treatment furnace and is connected with a temperature measuring instrument outside the furnace, and the thermocouple temperature sensor and the temperature measuring instrument are matched to measure the temperature in the furnace; 3. the cooling phase typically does not measure temperature.
SUMMERY OF THE UTILITY MODEL
The utility model provides a temperature measuring system for a metal heat treatment process.
The utility model provides the following scheme:
a temperature measuring system for a metal heat treatment process comprises at least one group of thermocouple temperature measuring lines, wherein positive and negative end heads of one end of each thermocouple temperature measuring line are respectively connected to a first target connecting point and a second target connecting point, and the first target connecting point and the second target connecting point are positioned on the surface of a workpiece or in the workpiece; the positive and negative ends of the other end of the thermocouple temperature measuring wire penetrate through the heat treatment furnace and are connected with a temperature measuring instrument or a temperature control system of the heat treatment furnace;
wherein the distance between the first target connecting point and the second target connecting point is 0-20 mm.
Preferably: the distance between the first target connecting point and the second target connecting point is 5-10 mm.
Preferably: the thermocouple temperature measuring line comprises a group, and the first target connecting point and the second target connecting point are positioned on the surface of the workpiece; and the positive and negative end heads at one end of the thermocouple temperature measuring wire are respectively connected to the first target connection point and the second target connection point by adopting a welding process.
Preferably: and the positive and negative terminal ends at one end of the thermocouple temperature measuring wire are respectively connected to the first target connection point and the second target connection point by adopting a resistance welding process.
Preferably: the thermocouple temperature measuring lines comprise two groups, the first target connecting point and the second target connecting point contained in one group of thermocouple temperature measuring lines are positioned on the surface of a workpiece, and the positive and negative end heads of one end of each thermocouple temperature measuring line are respectively connected to the first target connecting point and the second target connecting point by adopting a welding process; the first target connecting point and the second target connecting point which are contained in the other group of thermocouple temperature measuring lines are positioned in the workpiece; and the positive and negative end heads at one end of the thermocouple temperature measuring wire are respectively clamped and connected to the first target connection point and the second target connection point by auxiliary tools.
Preferably: the auxiliary tool includes a metal plug.
Preferably: the two groups of thermocouple temperature measuring wires are respectively connected with one set of temperature measuring instrument in a one-to-one correspondence mode.
Preferably: the thermocouple temperature measuring line is any one of a B-type thermocouple temperature measuring line, an E-type thermocouple temperature measuring line, a J-type thermocouple temperature measuring line, a K-type thermocouple temperature measuring line, an N-type thermocouple temperature measuring line, an R-type thermocouple temperature measuring line, an S-type thermocouple temperature measuring line and a T-type thermocouple temperature measuring line.
According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects:
according to the utility model, a temperature measuring system for a metal heat treatment process can be realized, and in an implementation mode, the system can be provided with at least one group of thermocouple temperature measuring lines, wherein the positive and negative end heads of one end of each thermocouple temperature measuring line are respectively connected to a first target connecting point and a second target connecting point, and the first target connecting point and the second target connecting point are positioned on the surface of a workpiece or in the workpiece; the positive and negative ends of the other end of the thermocouple temperature measuring wire penetrate through the heat treatment furnace and are connected with a temperature measuring instrument or a temperature control system of the heat treatment furnace; wherein the distance between the first target connecting point and the second target connecting point is 0-20 mm. The application provides a temperature measurement system for metal heat treatment process for measure the temperature of metal work piece heat treatment process. The measuring process and the measuring result are not influenced by environmental factors, the surface state of the workpiece to be measured, obstacles and the like, and the measuring result is more accurate. The temperature of the surface of the workpiece can be measured, and the temperature of the interior of the workpiece can be measured. The actual temperature of the heat treated workpiece can be measured directly, rather than the temperature of the furnace atmosphere. The temperature of the workpiece in the whole heat treatment process can be accurately measured in real time, and the measurement comprises the heating, heat preservation and cooling stages. The heat preservation time does not need to be estimated through an empirical formula, and the heat treatment quality of the metal can be improved.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a temperature measurement system for a metal heat treatment process according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a temperature measurement system for a metal heat treatment process according to an embodiment of the present invention.
In the figure: thermocouple temperature measuring lines (a 1, a 2), a first target connecting point b1, a second target connecting point b2, a workpiece 1, a temperature measuring hole 11, a heat treatment furnace 2, a temperature measuring instrument 3 and a metal plug 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Examples
Referring to fig. 1 and 2, a temperature measuring system for a metal heat treatment process according to an embodiment of the present invention may include at least one set of thermocouple temperature measuring lines (a 1, a 2), where positive and negative terminals of one end of each of the thermocouple temperature measuring lines (a 1, a 2) are respectively connected to a first target connection point b1 and a second target connection point b2, and the first target connection point b1 and the second target connection point b2 are located on a surface of a workpiece 1 or inside the workpiece 1, as shown in fig. 1 and 2; the positive and negative terminals at the other end of the thermocouple temperature measuring wires (a 1, a 2) penetrate through the heat treatment furnace 2 and are connected with the temperature measuring instrument 3 or the temperature control system of the heat treatment furnace; specifically, the thermocouple temperature measurement line is any one of a B-type thermocouple temperature measurement line, an E-type thermocouple temperature measurement line, a J-type thermocouple temperature measurement line, a K-type thermocouple temperature measurement line, an N-type thermocouple temperature measurement line, an R-type thermocouple temperature measurement line, an S-type thermocouple temperature measurement line, and a T-type thermocouple temperature measurement line.
Wherein the distance between the first target connection point b1 and the second target connection point b2 is 0-20 mm.
According to the measuring system provided by the embodiment of the application, the first target connecting point and the second target connecting point can be arranged on the surface of the workpiece, and can also be arranged in the workpiece (connected to the inside of the workpiece through drilling or cutting gaps on the workpiece), and the workpiece which is small, does not allow drilling and cutting and has lower heat treatment requirements can be connected to the surface; large workpieces which allow drilling and cutting and have appropriately high heat treatment requirements can be connected to the interior; the distance between the anode and the cathode of the temperature measuring line of the connecting point can be 0-20 mm, and the distance is 5-10mm as the best distance; the connecting mode can adopt resistance welding to weld the temperature measuring line and the workpiece together, can also use an auxiliary tool to closely stick and clamp the temperature measuring line and the workpiece, or use other modes to connect the temperature measuring line and the workpiece. And connecting the other end of the temperature measuring wire to a temperature measuring instrument or a temperature measuring and controlling system of the heat treatment furnace, reading the temperature, and performing real-time temperature measurement and control.
The positive and negative terminals of the thermocouple temperature measurement line provided by the embodiment of the application can be connected with a workpiece in various ways, the connection point can be on the surface of the workpiece, and also can be in the workpiece (connected to the inside of the workpiece through drilling or cutting gaps on the workpiece), and the workpiece which is small in size, does not allow drilling and cutting, and has low heat treatment requirements can be connected to the surface; large workpieces that allow for drill cutting and have reasonably high heat treatment requirements can be joined inside. For example, in one implementation, when a small workpiece or a thin sheet metal part is used for heat treatment, as shown in fig. 1, the embodiments of the present application may provide that the thermocouple temperature measurement lines (a 1, a 2) include one group, and the first target connection point b1 and the second target connection point b2 are located on the surface of the workpiece 2; the positive and negative terminals at one end of the thermocouple temperature measuring wires (a 1, a 2) are respectively connected to the first target connection point b1 and the second target connection point b2 by adopting a welding process. Specifically, the positive and negative terminal ends of one end of the thermocouple temperature measuring wire are respectively connected to the first target connection point and the second target connection point by adopting a resistance welding process.
In practical application, the positive electrode and the negative electrode at one end of a temperature measuring line of the K-type thermocouple can be respectively welded with the surface of a workpiece by using resistance welding, the distance between welding spots of the positive electrode and the negative electrode is 5-10mm, and the other end of the temperature measuring line is connected with a temperature control system of a temperature measuring instrument or a heat treatment furnace.
And (3) heat treatment process:
1. a heating stage: putting the workpiece and the connected temperature measuring line into a heat treatment furnace for heating, measuring and recording the real-time temperature of the workpiece by using a temperature measuring instrument, monitoring the temperature change, and stopping heating when the temperature meets the requirement;
2. and (3) a heat preservation stage: the workpiece does not need to be insulated;
3. and (3) a cooling stage: and cooling the workpiece, continuously measuring and recording the real-time temperature of the workpiece by using a temperature measuring instrument, detecting the temperature change, and finishing the heat treatment process when the temperature meets the requirement.
In another implementation manner, during heat treatment of a large workpiece or a thick bulk metal, as shown in fig. 2, the embodiments of the present application may provide that the thermocouple temperature measurement lines (a 1, a 2) include two groups, the first target connection point and the second target connection point included in one group of thermocouple temperature measurement lines (a 1, a 2) are located on the surface of the workpiece, and the positive and negative ends of one end of the thermocouple temperature measurement line are respectively connected to the first target connection point and the second target connection point by using a welding process; the first target connection point and the second target connection point comprised by the other set of thermocouple temperature measurement lines (a 1, a 2) are located inside the workpiece; and the positive and negative end heads at one end of the thermocouple temperature measuring wire are respectively clamped and connected to the first target connection point and the second target connection point by auxiliary tools. In particular, the auxiliary tool comprises a metal plug 4. The two groups of thermocouple temperature measuring wires are respectively connected with one set of temperature measuring instrument 3 in a one-to-one correspondence mode.
In actual use, the positive electrode and the negative electrode of one group of K-type thermocouple temperature measuring lines can be respectively welded with the surface of a workpiece by resistance welding, the distance between welding points of the positive electrode and the negative electrode is 5-10mm, and the other end of the temperature measuring line is connected with a temperature control system of a temperature measuring instrument or a heat treatment furnace. Meanwhile, a temperature measuring hole is drilled in the workpiece, the positive electrode and the negative electrode of one end of the temperature measuring line of the other group of K-type thermocouples are clamped to the deep part of the temperature measuring hole by using an auxiliary tool (a metal plug), the distance between the positive electrode and the negative electrode is 5-10mm, and the other end of the temperature measuring line is connected with a temperature control system of a temperature measuring instrument or a heat treatment furnace.
And (3) heat treatment process:
1. a heating stage: placing the workpiece and the connected temperature measuring line into a heat treatment furnace for heating, measuring and recording the real-time temperature of the workpiece by using a temperature measuring instrument, monitoring the temperature change, and stopping heating when the temperature of the temperature measuring instrument connected with the surface of the workpiece reaches the requirement;
2. and (3) a heat preservation stage: when the temperature of the temperature measuring instrument connected with the surface of the workpiece reaches the requirement, the temperature is kept, the temperature change is continuously monitored, and when the temperature of the temperature measuring instrument connected with the inner part of the workpiece reaches the requirement, the temperature is kept;
3. and (3) a cooling stage: and cooling the workpiece, continuously measuring and recording the real-time temperature of the workpiece by using a temperature measuring instrument, monitoring the temperature change, and finishing the heat treatment process when the temperature of the temperature measuring instrument connected with the inside of the workpiece meets the requirement.
In summary, the present application provides a temperature measurement system for a metal heat treatment process for measuring a temperature of a metal workpiece during the heat treatment process. The measuring process and the measuring result are not influenced by environmental factors, the surface state of the workpiece to be measured, obstacles and the like, and the measuring result is more accurate. The temperature of the surface of the workpiece can be measured, and the temperature of the interior of the workpiece can be measured. The actual temperature of the heat treated workpiece can be measured directly, rather than the temperature of the furnace atmosphere. The temperature of the workpiece in the whole heat treatment process can be accurately measured in real time, and the measurement comprises the heating, heat preservation and cooling stages. The heat preservation time does not need to be estimated through an empirical formula, and the heat treatment quality of the metal can be improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. A temperature measuring system for a metal heat treatment process is characterized by comprising at least one group of thermocouple temperature measuring lines, wherein positive and negative end heads of one end of each thermocouple temperature measuring line are respectively connected to a first target connecting point and a second target connecting point, and the first target connecting point and the second target connecting point are positioned on the surface of a workpiece or in the workpiece; the positive and negative ends of the other end of the thermocouple temperature measuring wire penetrate through the heat treatment furnace and are connected with a temperature measuring instrument or a temperature control system of the heat treatment furnace;
wherein the distance between the first target connecting point and the second target connecting point is 0-20 mm;
the thermocouple temperature measuring line comprises a group, and the first target connecting point and the second target connecting point are positioned on the surface of the workpiece; the positive and negative end heads of one end of the thermocouple temperature measuring wire are respectively connected to the first target connection point and the second target connection point by adopting a welding process;
or the thermocouple temperature measuring lines comprise two groups, the first target connecting point and the second target connecting point contained in one group of thermocouple temperature measuring lines are positioned on the surface of the workpiece, and the positive and negative end heads at one end of each thermocouple temperature measuring line are respectively connected to the first target connecting point and the second target connecting point by adopting a welding process; the first target connecting point and the second target connecting point which are contained in the other group of thermocouple temperature measuring lines are positioned in the workpiece; and the positive and negative end heads at one end of the thermocouple temperature measuring wire are respectively clamped and connected to the first target connection point and the second target connection point by auxiliary tools.
2. The temperature measurement system for a metal heat treatment process of claim 1, wherein the first target connection point is spaced from the second target connection point by 5-10 mm.
3. The system of claim 1, wherein the positive and negative terminals of one end of the thermocouple temperature measurement wire are connected to the first target connection point and the second target connection point by resistance welding.
4. The temperature measurement system for a metal heat treatment process of claim 1, wherein the auxiliary tool includes a metal plug.
5. The temperature measurement system for use in a metal heat treatment process according to claim 1, wherein two sets of thermocouple temperature measurement wires are respectively connected with one set of temperature measurement instrument in a one-to-one correspondence.
6. The temperature measurement system for use in the metal heat treatment process according to claim 1, wherein the thermocouple temperature measurement line is any one of a B-type thermocouple temperature measurement line, an E-type thermocouple temperature measurement line, a J-type thermocouple temperature measurement line, a K-type thermocouple temperature measurement line, an N-type thermocouple temperature measurement line, an R-type thermocouple temperature measurement line, an S-type thermocouple temperature measurement line, and a T-type thermocouple temperature measurement line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121898795.4U CN216116411U (en) | 2021-08-13 | 2021-08-13 | Temperature measuring system for metal heat treatment process |
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| CN202121898795.4U CN216116411U (en) | 2021-08-13 | 2021-08-13 | Temperature measuring system for metal heat treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115629103A (en) * | 2022-10-25 | 2023-01-20 | 湖南中创空天新材料股份有限公司 | Method for measuring heating coefficient of metal material and application |
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2021
- 2021-08-13 CN CN202121898795.4U patent/CN216116411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115629103A (en) * | 2022-10-25 | 2023-01-20 | 湖南中创空天新材料股份有限公司 | Method for measuring heating coefficient of metal material and application |
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