CN214748452U - Temperature measurement system of vacuum sintering furnace - Google Patents
Temperature measurement system of vacuum sintering furnace Download PDFInfo
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- CN214748452U CN214748452U CN202120777641.3U CN202120777641U CN214748452U CN 214748452 U CN214748452 U CN 214748452U CN 202120777641 U CN202120777641 U CN 202120777641U CN 214748452 U CN214748452 U CN 214748452U
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Abstract
The utility model discloses a temperature measurement system of vacuum sintering stove relates to sintering equipment temperature measurement system technical field, and especially a temperature measurement system of vacuum sintering stove, it includes: the device comprises a controller, an infrared thermometer, a thermocouple, a clock circuit, a communication module and a display module; the utility model discloses temperature measurement system is equipped with two at least infrared radiation thermometer, and two each other are for reserve, and the thermocouple is as the benchmark of calibration infrared radiation thermometer, through the temperature of comparing the thermocouple, finds the infrared radiation thermometer that the temperature measurement is inaccurate and overhauls, and the other one carries out the temperature measurement reliability as the temperature detection reference source and very improves, has reduced the time and the down time that the system was maintained. The utility model discloses temperature measurement system is equipped with the thermoscope mount pad, only needs the operation lead screw, realizes carrying out the dismouting to infrared radiation thermometer behind sealed vacuum sintering stove promptly, and the vacuum sintering stove need not shutdown operation, only needs the operation lead screw to realize sealed promptly, and the operation is convenient, and is efficient, does not influence the atmosphere in the stove, has realized the on-line maintenance.
Description
Technical Field
The utility model belongs to the technical field of sintering equipment temperature measurement system technique and specifically relates to a temperature measurement system of vacuum sintering stove.
Background
Sintering is an indispensable material preparation method, and the conventional material preparation methods mainly comprise pressureless sintering, hot pressing, hot isostatic pressing, microwave sintering, spark plasma sintering and the like. The implementation of various sintering methods is dependent on a specific sintering furnace. Among them, the vacuum sintering furnace is a sintering furnace that is commonly used for sintering metal and ceramic materials. Sintering ceramic, metal and some refractory intermetallic compound powder to obtain a material with certain compactness and mechanical strength. The basic principle of hot-pressing sintering is that under a certain high temperature, a certain pressure is applied to a sample, so that the contact and diffusion among different powder particles in a green body are realized by mass points in the green body particles under the dual actions of high temperature and mechanical force, air holes are eliminated, and finally the densification of the material is realized. The currently adopted hot-pressing sintering pressurization mode of mechanical pressurization is stable and reliable, but the flexibility is not enough.
The automatic vacuum sintering furnace for medium-frequency induction heating refers to the following steps: the vacuum sintering furnace is a furnace for performing protective sintering on a heated object in a vacuum environment, and the heating mode is various, such as resistance heating, induction heating, microwave heating and the like. The vacuum sintering furnace is a furnace for performing protective sintering on a heated object by utilizing induction heating, can be divided into types of power frequency, medium frequency, high frequency and the like, and can be classified as a subclass of vacuum sintering furnaces.
However, when the existing vacuum sintering furnace is used, the temperature measurement system has temperature measurement deviation, which is difficult to detect, and the problems of difficult investigation and maintenance after detection are solved.
Disclosure of Invention
The utility model provides a temperature measurement system of vacuum sintering stove for the problem that the problem was difficult to the investigation appears in the problem of solving among the prior art sintering stove temperature measurement system trouble.
The utility model adopts the following technical scheme
A temperature measurement system of a vacuum sintering furnace, comprising: the device comprises a controller, an infrared thermometer, a thermocouple, a clock circuit, a communication module and a display module;
the infrared thermometer and the thermocouple are used for acquiring furnace temperature signals of the vacuum sintering furnace, the controller is used for controlling the display module to display the furnace temperature signals from the infrared thermometer and the furnace temperature signals from the thermocouple, the controller is also used for sending the furnace temperature signals from the infrared thermometer and the furnace temperature signals from the thermocouple through the communication module, and at least two infrared thermometers are used; the clock circuit is used for maintaining system time, and the controller is also used for controlling the display module to display a temperature curve according to the system time, the temperature signal in the furnace from the infrared thermometer and the temperature signal in the furnace from the thermocouple;
the clock circuit, the infrared thermometer, the thermocouple, the communication module and the display module are respectively and electrically connected with the controller.
Further, still include: a thermodetector mount pad, the thermodetector mount pad comprising: the connecting sleeve, the screw rod, the gland, the flashboard and the transparent window;
the connecting sleeve is a T-shaped tee joint, the transparent window is detachably connected inside the first opening of the connecting sleeve, an internal thread matched with the lead screw is arranged inside the second opening of the connecting sleeve, the lead screw passes through the gland and is in sealing connection with the second opening, the first end of the lead screw is in rotating connection with the flashboard, the flashboard is in sliding connection with the inside of the connecting sleeve, the third opening of the connecting sleeve is used for being connected with a vacuum sintering furnace, and the first opening of the connecting sleeve is in direct connection with the third opening of the connecting sleeve.
Furthermore, an internal thread for connecting the infrared thermometer is arranged in the first opening of the connecting sleeve.
Further, the thermometer mounting base further comprises: and the handle is fixedly connected or detachably connected with the second end of the screw rod.
Further, still include: the controller is also used for storing the furnace temperature signal from the infrared thermometer, the furnace temperature signal from the thermocouple and system time information into a memory inserted into the memory interface, the controller is also used for controlling the display module to display a historical temperature curve from the memory inserted into the memory interface, and the memory interface is electrically connected with the controller.
Further, the communication module is an RS485 communication module, a 315MHz communication module or a 433MHz communication module.
The utility model discloses an actively the effect as follows:
a temperature measurement system of a vacuum sintering furnace, comprising: the device comprises a controller, an infrared thermometer, a thermocouple, a clock circuit, a communication module and a display module;
the utility model discloses temperature measurement system is equipped with two at least infrared radiation thermometer, two are each other for reserve, the thermocouple is as the benchmark of calibration infrared radiation thermometer, through the temperature of comparing the thermocouple, can confirm the temperature in the current stove, when the temperature that the staff discovery infrared radiation thermometer detected and the temperature inconsistency that the thermocouple detected, can overhaul through finding the infrared radiation thermometer that the temperature measurement is inaccurate, another one carries out the temperature measurement as temperature detection reference source this moment, therefore, this system reliability is very improved, be equipped with the thermocouple as the calibration source, the infrared radiation thermometer that breaks down is arranged out easily, the time and the dead time of system maintenance have been reduced.
The utility model discloses temperature measurement system is equipped with the thermoscope mount pad that is used for installing on line or dismantles infrared thermometer, only needs the operation lead screw, realizes sealed vacuum sintering stove promptly, carries out the dismouting to infrared thermometer behind sealed vacuum sintering stove, and the vacuum sintering stove need not the shutdown operation, has reduced the fault down time, only needs the operation lead screw to realize sealed promptly, and the operation is convenient, and is efficient, does not influence the stove atmosphere, has realized the on-line maintenance, and the reliability is for improving greatly.
The utility model discloses the connection cover of infrared thermometer is equipped with the internal thread with infrared thermometer screw thread looks adaptation, and dismouting infrared thermometer is simple convenient, need not other switching interfaces, compact structure.
The utility model discloses second end at the lead screw is equipped with the handle, need not the instrument when twisting the lead screw, has made things convenient for the operation of changing infrared thermometer.
The utility model discloses temperature measurement system is equipped with the memory interface, can stock historical temperature in the intraoral memory of this memory interface, and the staff can conveniently make statistics of experimental data or investigation production process through memory review historical temperature, realizes automatic recording, reduces the process of artifical record, and this memory passes through the interface and inserts temperature measurement system, when the memory goes wrong, can quick replacement, and the memory acquires easily, and is with low costs.
The utility model discloses under temperature measurement system's RS485 communication module low speed communication mode again, kilometer in can transmitting, 315MHz communication module or 433MHz communication module are wireless communication module, need not to erect the circuit, also can realize kilometer's transmission distance under low speed communication mode, transmission distance is far away, data are reliable and stable, make the staff can pass through intelligent terminal, if the temperature is looked over in the monitor to industrial computer, staff operational environment has been improved, staff's running wave has been reduced.
Drawings
FIG. 1 is a functional block diagram of a temperature measurement system of a vacuum sintering furnace according to an embodiment of the present invention;
fig. 2 is a sectional view of the temperature measuring instrument mounting base according to the embodiment of the present invention.
In the figure:
1 connecting sleeves;
2, a screw rod;
3, pressing a cover;
4, a gate plate;
5, a transparent window;
6 a handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
As shown in fig. 1-2, a temperature measuring system of a vacuum sintering furnace includes: the device comprises a controller, an infrared thermometer, a thermocouple, a clock circuit, a communication module and a display module;
the infrared thermometer and the thermocouple are used for acquiring furnace temperature signals of the vacuum sintering furnace, the controller is used for controlling the display module to display the furnace temperature signals from the infrared thermometer and the furnace temperature signals from the thermocouple, the controller is also used for sending the furnace temperature signals from the infrared thermometer and the furnace temperature signals from the thermocouple through the communication module, and at least two infrared thermometers are used; the clock circuit is used for maintaining system time, and the controller is also used for controlling the display module to display a temperature curve according to the system time, the temperature signal in the furnace from the infrared thermometer and the temperature signal in the furnace from the thermocouple;
the clock circuit, the infrared thermometer, the thermocouple, the communication module and the display module are respectively and electrically connected with the controller.
More specifically, where the temperature is above absolute zero, an object at 0K or-273.15 ℃ will emit electromagnetic radiation outwardly from the surface, and this radiation is proportional to the inherent temperature of the object. Among such radiations are infrared radiations used for realizing temperature measurement. After the radiation has penetrated the atmosphere, it can be focused on a detector by means of a special lens. The detector then generates an electrical signal proportional to the radiation. This signal is amplified and converted to an output signal proportional to the temperature of the object by being subjected to successive digital signal processing. In this way, the measured temperature value is displayed on the display or output in the form of a signal.
The infrared thermometer calculates the temperature of the surface of an object according to the infrared radiation intensity of the object to be measured, signals output by the infrared thermometer have various forms, analog signals comprise various forms such as 0-10V and 4-20mA, and digital forms are a plurality of byte sequences containing temperature signals.
When two different conductors or semiconductors a and B form a loop, and the two ends of the loop are connected with each other, as long as the temperatures at the two junctions are different, one end is at T, called working end or hot end, and the other end is at T0, called free end, also called reference end or cold end, an electromotive force is generated in the loop, and the direction and magnitude of the electromotive force are related to the materials of the conductors and the temperatures of the two junctions. This phenomenon is called "thermoelectric effect", the circuit formed by the two conductors, called "thermocouple", the two conductors called "hot electrode", and the electromotive force generated, called "thermoelectric force". The thermocouple measures temperature by using the principle.
Signals measured by the infrared thermometer and signals measured by the thermocouple are simultaneously sent to the controller for analysis, the controller is realized in various modes, but most of the controllers are single-chip microcomputers, such as a single-chip microcomputer with the model number of PIC16F877A, and the single-chip microcomputers can be used for analyzing the temperature signals.
The analyzed temperature signal controller controls the display module to display, in an implementation manner, the display module is of a type of LCD12864, and the display module is a dot matrix module and can display characters and black and white images.
The temperature measurement system is also provided with a clock circuit, the clock circuit depends on a crystal oscillator as a reference source, the button cell maintains the operation of the clock circuit, and even after power failure occurs, the clock circuit always operates to count the current system time.
The controller is also used for displaying a temperature curve on the display screen according to the time information and the temperature signal of the clock circuit.
The utility model discloses temperature measurement system is equipped with two at least infrared radiation thermometer, two are each other for reserve, the thermocouple is as the benchmark of calibration infrared radiation thermometer, through the temperature of comparing the thermocouple, can confirm the temperature in the current stove, when the temperature that the staff discovery infrared radiation thermometer detected and the temperature inconsistency that the thermocouple detected, can overhaul through finding the infrared radiation thermometer that the temperature measurement is inaccurate, another one carries out the temperature measurement as temperature detection reference source this moment, therefore, this system reliability is very improved, be equipped with the thermocouple as the calibration source, the infrared radiation thermometer that breaks down is arranged out easily, the time and the dead time of system maintenance have been reduced.
Further, still include: a thermodetector mount pad, the thermodetector mount pad comprising: the connecting sleeve 1, the screw rod 2, the gland 3, the flashboard 4 and the transparent window 5;
adapter sleeve 1 is T shape tee bend, transparent window 5 can dismantle the connection and be in inside the first mouth of adapter sleeve 1, the inside of 1 second mouth of adapter sleeve be equipped with the internal thread of 2 looks adaptations of lead screw, lead screw 2 passes through gland 3 with second mouth sealing connection, 2 first ends of lead screw with flashboard 4 rotates and connects, flashboard 4 with 1 inside sliding connection of adapter sleeve, 1 third mouth of adapter sleeve is used for being connected with the vacuum sintering stove, 1 first mouth of adapter sleeve with 1 third mouth of adapter sleeve is through.
More specifically, the thermoscope mount pad is a mount pad of convenient maintenance, and 1 first mouthful of adapter sleeve is used for installing infrared radiation thermometer, and infrared radiation thermometer carries out the temperature measurement through transparent window 5 in to the stove, and the lead screw 2 of second mouth is used for driving flashboard 4 and promotes or descends along the intraoral slide of second. The gland 3 is used for sealing the gap between the screw rod 2 and the second opening and ensuring that the screw rod 2 is not pulled out of the second opening.
When the infrared thermometer is used, the mounting base is mounted behind a temperature measuring port of the vacuum sintering furnace through the third port, the infrared thermometer is mounted on the first port, then the flashboard 4 is driven to lift through the operation screw rod 2, the infrared thermometer detects the temperature in the furnace through the transparent observation window at the moment, when the infrared thermometer breaks down and needs to be overhauled or replaced, the flashboard 4 is driven to descend through the operation screw rod 2, the third port is sealed, the thermometer is mounted on the first port of the connecting base after being dismounted for maintenance or when a new infrared thermometer is replaced, then the operation screw rod 2 drives the flashboard 4 to ascend, and the infrared thermometer is put into use.
The utility model discloses temperature measurement system is equipped with the thermoscope mount pad that is used for installing on line or dismantles infrared thermometer, only needs operation lead screw 2, realizes sealed vacuum sintering stove promptly, carries out the dismouting to infrared thermometer behind sealed vacuum sintering stove, and the vacuum sintering stove need not the shutdown operation, has reduced fault down time, only needs operation lead screw 2 to realize sealing promptly, and the operation is convenient, and is efficient, does not influence the stove atmosphere, has realized the on-line maintenance, and the reliability is for improving greatly.
Furthermore, an internal thread for connecting the infrared thermometer is arranged in the first opening of the connecting sleeve 1.
More specifically, the utility model discloses infrared radiation thermometer's adapter sleeve 1 is equipped with the internal thread with infrared radiation thermometer screw thread looks adaptation, and dismouting infrared radiation thermometer is simple convenient, need not other switching interfaces, compact structure.
Further, the thermometer mounting base further comprises: and the handle 6 is fixedly connected or detachably connected with the second end of the screw rod 2.
More specifically, the utility model discloses second end at lead screw 2 is equipped with handle 6, need not the instrument when twisting lead screw 2, has made things convenient for the operation of changing infrared thermometer.
Further, still include: the controller is also used for storing the furnace temperature signal from the infrared thermometer, the furnace temperature signal from the thermocouple and system time information into a memory inserted into the memory interface, the controller is also used for controlling the display module to display a historical temperature curve from the memory inserted into the memory interface, and the memory interface is electrically connected with the controller.
More specifically, in a specific embodiment, the memory interface is an SD card interface, data including system time and furnace temperature signals acquired by the controller are stored in a memory inserted into the interface, and the current technology of the SD card can be a single card 128G for storing data, which can store data for at least 5 years.
The utility model discloses temperature measurement system is equipped with the memory interface, can stock historical temperature in the intraoral memory of this memory interface, and the staff can conveniently make statistics of experimental data or investigation production process through memory review historical temperature, realizes automatic recording, reduces the process of artifical record, and this memory passes through the interface and inserts temperature measurement system, when the memory goes wrong, can quick replacement, and the memory acquires easily, and is with low costs.
Further, the communication module is an RS485 communication module, a 315MHz communication module or a 433MHz communication module.
More specifically, the utility model discloses under temperature measurement system's RS485 communication module low rate communication mode again, like under the 9600bps mode, can transmit last kilometer, 315MHz communication module or 433MHz communication module are wireless communication module, need not to erect the circuit, also can realize last kilometer's transmission distance under low rate communication mode, transmission distance is far away, data are reliable and stable, make the staff can pass through intelligent terminal, look over the temperature like industrial computer in the monitor, staff's operational environment has been improved, staff's the ripples of rushing back to has been reduced.
The above embodiments are only preferred embodiments of the present invention, and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.
Claims (6)
1. A temperature measurement system of a vacuum sintering furnace is characterized by comprising: the device comprises a controller, an infrared thermometer, a thermocouple, a clock circuit, a communication module and a display module;
the infrared thermometer and the thermocouple are used for acquiring furnace temperature signals of the vacuum sintering furnace, the controller is used for controlling the display module to display the furnace temperature signals from the infrared thermometer and the furnace temperature signals from the thermocouple, the controller is also used for sending the furnace temperature signals from the infrared thermometer and the furnace temperature signals from the thermocouple through the communication module, and at least two infrared thermometers are used; the clock circuit is used for maintaining system time, and the controller is also used for controlling the display module to display a temperature curve according to the system time, the temperature signal in the furnace from the infrared thermometer and the temperature signal in the furnace from the thermocouple;
the clock circuit, the infrared thermometer, the thermocouple, the communication module and the display module are respectively and electrically connected with the controller.
2. The temperature measurement system of the vacuum sintering furnace according to claim 1, further comprising: a thermodetector mount pad, the thermodetector mount pad comprising: the connecting sleeve (1), the screw rod (2), the gland (3), the flashboard (4) and the transparent window (5);
adapter sleeve (1) is the T tee bend that appears, transparent window (5) can be dismantled and connect inside the first mouth of adapter sleeve (1), adapter sleeve (1) second mouth inside be equipped with the internal thread of lead screw (2) looks adaptation, lead screw (2) pass through gland (3) with second mouth sealing connection, lead screw (2) first end with flashboard (4) rotate to be connected, flashboard (4) with adapter sleeve (1) inside sliding connection, adapter sleeve (1) third mouth is used for being connected with the vacuum sintering stove, adapter sleeve (1) first mouth with adapter sleeve (1) third mouth is through.
3. The temperature measuring system of the vacuum sintering furnace according to claim 2, wherein the first port of the connecting sleeve (1) is internally provided with an internal thread for connecting the infrared thermometer.
4. The temperature measurement system of the vacuum sintering furnace according to claim 3, wherein the thermometer mounting base further comprises: the handle (6), the handle (6) with lead screw (2) second end fixed connection or detachable connection.
5. The temperature measurement system of the vacuum sintering furnace according to claim 4, further comprising: the controller is also used for storing the furnace temperature signal from the infrared thermometer, the furnace temperature signal from the thermocouple and system time information into a memory inserted into the memory interface, the controller is also used for controlling the display module to display a historical temperature curve from the memory inserted into the memory interface, and the memory interface is electrically connected with the controller.
6. The temperature measurement system of the vacuum sintering furnace according to claim 5, wherein the communication module is an RS485 communication module, a 315MHz communication module or a 433MHz communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120777641.3U CN214748452U (en) | 2021-04-16 | 2021-04-16 | Temperature measurement system of vacuum sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120777641.3U CN214748452U (en) | 2021-04-16 | 2021-04-16 | Temperature measurement system of vacuum sintering furnace |
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| Publication Number | Publication Date |
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| CN214748452U true CN214748452U (en) | 2021-11-16 |
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| CN202120777641.3U Active CN214748452U (en) | 2021-04-16 | 2021-04-16 | Temperature measurement system of vacuum sintering furnace |
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| CN (1) | CN214748452U (en) |
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2021
- 2021-04-16 CN CN202120777641.3U patent/CN214748452U/en active Active
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