An automatic timing, automatic quenching heat treatment device

Abstract

The utility model relates to metal heat treatment technical field, and disclose a kind of heat treatment device of automatic timing, automatic quenching, including workbench, the top end rear position of workbench is equipped with automatic control box, the front end upper position of automatic control box is provided with resistance heating furnace body, the inside central position of resistance heating furnace body is provided with quartz tube, one side of automatic control box is equipped with temperature control meter and temperature meter, the top end of quartz tube is connected with sealed flange pipe one by flange one, and the top end of sealed flange pipe one is equipped with electromagnetic lifting plate;By electromagnetic lifting plate, quartz tube, sealing block, can automatically carry out timing and quenching, compared with traditional manual operation, can reduce the error when heating and quenching, facilitate to improve test data accuracy, only when adding sample need manual operation, subsequent heating and quenching process do not need personnel real-time monitoring, facilitate to improve heat treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metal heat treatment technology, specifically to a heat treatment device with automatic timing and automatic quenching. Background Technology

[0002] Vertical tube furnaces are a common type of industrial heating equipment, mainly used for heat treatment, chemical reactions and other processes of materials. In the field of materials science, vertical tube furnaces are often used for titanium alloy transformation temperature testing, and temperature control is achieved based on resistance heating.

[0003] A search revealed a Chinese patent for a vertical rapid quenching device for a high-temperature tubular furnace, publication number CN221051922U. The device includes a main body and a placement mechanism disposed inside the main body for placing the workpiece to be quenched. The main body includes a fixed outer shell.

[0004] The above-mentioned device, with its vertical fixed housing, can adapt to the quenching of workpieces of different lengths, keeping the workpieces stable during the quenching process. At the same time, the hydraulic cylinder can cause the placement plate to immerse the workpieces in the quenching liquid, making it convenient to quench workpieces of different lengths, thereby improving the efficiency of workpiece quenching. However, the quenching process relies on manual temperature monitoring, timing, and quenching, which leads to time errors in timing and operation. Quenching delay affects the reliability of test results, and manual operation is inefficient and time-consuming, making it difficult to meet the requirements of high-precision testing. Utility Model Content

[0005] The purpose of this invention is to provide an automatic timing and automatic quenching heat treatment device, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An automatic timing and automatic quenching heat treatment device includes a workbench, an automatic control box installed at the rear top of the workbench, a resistance heating furnace body installed at the upper front front of the automatic control box, and a quartz tube installed at the center of the interior of the resistance heating furnace body. A temperature controller and a temperature measuring instrument are installed on one side of the automatic control box. The top of the quartz tube is connected to a sealing flange tube one via a flange one. An electromagnetic lifting plate is installed on the top of the sealing flange tube one. The bottom of the quartz tube is connected to a sealing flange tube two via a flange two. A sealing groove is provided at the lower front end of the sealing flange tube two. A sealing block is movably installed in the sealing groove. A servo electric telescopic rod is installed at the rear side of one side of the sealing flange tube two. The push rod end of the servo electric telescopic rod is connected to one side of the sealing block. A stainless steel water tank is provided at the top of the workbench and below the quartz tube.

[0007] Preferably, the center points of the stainless steel water tank and the quartz tube are on the same vertical line, the capacity of the stainless steel water tank is thirty liters, and a drain valve pipe is connected to the lower part of the outer ring of the stainless steel water tank.

[0008] Preferably, a lifting line is provided inside the quartz tube and below the electromagnetic lifting plate, the top end of the lifting line is connected to a magnetic block adapted to and matched with the electromagnetic lifting plate, and the bottom end of the lifting line is provided with the sample body.

[0009] Preferably, the temperature measuring instrument has a K-type thermocouple, and the hot junction of the K-type thermocouple is located inside the resistance heating furnace. The automatic control box is equipped with a time relay that is electrically connected to the servo electric telescopic rod, the electromagnetic hoisting plate, the temperature controller, and the temperature measuring instrument.

[0010] Preferably, the sealing block is disc-shaped, and a sealing ring is provided at the joint between the inner wall of the sealing flange tube and the upper and lower ends of the sealing block.

[0011] Preferably, an air inlet pipe is connected to the rear of the outer ring of the first sealing flange tube, and an exhaust pipe is provided at the lower front end of the second sealing flange tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, through the coordinated arrangement of an electromagnetic lifting plate, a quartz tube, a sealing block, a servo-driven electric telescopic rod, and the sample body, can automatically perform timely quenching. Compared with traditional manual operation, it can reduce errors in heating timing and quenching, and facilitate the improvement of the accuracy of test data.

[0013] By setting up temperature controllers, thermometers, thermocouples, and resistance heating furnaces to work together, manual operation is only required when adding samples. Subsequent heating and quenching processes do not require real-time monitoring by personnel, allowing a single person to manage multiple devices for heating tests simultaneously, thus improving heat treatment efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an automatic timing and automatic quenching heat treatment device according to an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the positioning mechanism in an embodiment of the present utility model; Figure 3 This is a three-dimensional structural diagram of the dust removal mechanism in an embodiment of this utility model.

[0015] In the diagram: 1. Workbench; 2. Resistance heating furnace body; 3. Quartz tube; 4. Temperature controller; 5. Thermometer; 6. Sealing flange pipe one; 7. Electromagnetic lifting plate; 8. Sealing flange pipe two; 9. Sealing block; 10. Servo electric telescopic rod; 11. Stainless steel water tank; 12. Drain valve pipe; 13. Lifting line; 14. Sample body; 15. Air inlet pipe; 16. Exhaust pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Combination Figures 1-3 An automatic timing and automatic quenching heat treatment device includes a workbench 1, an automatic control box installed at the rear of the top of the workbench 1, a resistance heating furnace body 2 located at the upper front of the automatic control box, and a quartz tube 3 located in the center of the interior of the resistance heating furnace body 2.

[0018] See Figure 2 and Figure 3 Furthermore, it is found that a temperature controller 4 and a temperature measuring instrument 5 are installed on one side of the control box. The top of the quartz tube 3 is connected to a sealing flange tube 6 via a flange 1. An electromagnetic lifting plate 7 is installed on the top of the sealing flange tube 6. The bottom of the quartz tube 3 is connected to a sealing flange tube 8 via a flange 2. A sealing groove is provided at the lower front end of the sealing flange tube 8, and a sealing block 9 is movably installed in the sealing groove. A servo electric telescopic rod 10 is installed at the rear side of the sealing flange tube 8. The end of the push rod of the servo electric telescopic rod 10 is connected to the sealing flange tube 9. A stainless steel water tank 11 is connected to one side of block 9, and is located at the top of workbench 1 and below quartz tube 3. The center points of stainless steel water tank 11 and quartz tube 3 are on the same vertical line. The capacity of stainless steel water tank 11 is thirty liters. A drain valve pipe 12 is connected to the lower part of the outer ring of stainless steel water tank 11. A lifting line 13 is set inside quartz tube 3 and below electromagnetic lifting plate 7. A magnetic block that is compatible with electromagnetic lifting plate 7 is connected to the top of lifting line 13. A sample body 14 is set at the bottom of lifting line 13.

[0019] Specifically, as needed, deionized water can be injected into the stainless steel water tank 11 installed at the bottom of the resistance heating furnace 2 as the quenching medium. The stainless steel water tank 11 has a capacity of 30 liters. Subsequently, the sample body 14 can be hung in the uniform temperature zone inside the quartz tube 3 via the hoisting line 13. At this time, the sample body 14 can be a 10mm×10mm×10mm TC4 titanium alloy sample. At the same time, the target heating temperature of the resistance heating furnace 2 is set to 880℃, and the holding time is 30 minutes. When the K-type load thermocouple in the thermometer 5 detects that the furnace temperature has reached 880℃, the time relay automatically starts timing. After 30 minutes, the servo-driven electric telescopic rod 10 is opened first, and after 0.5 seconds, the electromagnetic lifting plate 7 is de-energized to release the sample. At this time, the sample will fall into the stainless steel water tank 11 within 1.8 seconds, thus completing the quenching process. Subsequently, the differential scanning calorimetry method in the existing technology is used to detect the sample to complete the heat treatment test process. The time relay model can be a high-precision relay of model JSZ3-T with a timing accuracy of ±1s. The temperature controller 4 model is XMTD-808, and the K-type thermocouple in the temperature measuring instrument 5 can be a Siemens-K type thermocouple.

[0020] Example 2 See Figure 2 and Figure 3 Furthermore, based on Example 1, the thermometer 5 has a K-type thermocouple, and the hot end of the K-type thermocouple is located inside the resistance heating furnace body 2. The automatic control box is equipped with a time relay that is electrically connected to the servo electric telescopic rod 10, the electromagnetic hoisting plate 7, the temperature controller 4, and the thermometer 5. The sealing block 9 is disc-shaped. A sealing ring is provided at the joint between the inner wall of the sealing flange tube 2 8 and the upper and lower ends of the sealing block 9. An air inlet pipe 15 is connected to the rear position of the outer ring of the sealing flange tube 1 6. An exhaust pipe 16 is provided at the lower position of the front end of the sealing flange tube 2 8.

[0021] Specifically, when performing heat treatment tests on 42CrMo alloy steel samples with dimensions of 10mm×10mm×50mm, the heating temperature can be set to 860℃ and the holding time adjusted to 20min. After the resistance heating furnace 2 is started, the temperature is monitored in real time by the thermocouple at the temperature measuring gauge 5. When the temperature reaches 860℃, the time relay starts timing. After the timing ends, the servo electric telescopic rod 10 and the electromagnetic lifting plate 7 can be activated according to the above steps to lower the sample. The sample will then be quenched within 2.1s. Rockwell hardness testing can be used afterward. When the data is qualified, the hardness value fluctuation range of the sample should be within ±3HRC.

[0022] In actual operation, the existing technology uses temperature controller 4 to regulate the furnace temperature, temperature meter 5 to monitor the temperature in real time, and gas to be injected and discharged through inlet pipe 15 and exhaust pipe 16. These steps will not be repeated here. The sample body 14 can be suspended in the uniform temperature zone of quartz tube 3 by electromagnetic lifting plate 7 at the top of quartz tube 3 and lifting line 13 in resistance heating furnace body 2. When the sample is kept at the set temperature for a specified time, the push rod of bottom servo electric telescopic rod 10 is triggered by time relay to extend, so as to drive the sealing block 9 away from the sealing flange tube 8, thereby removing the obstruction to the sample body 14. Then the lifting line 13 is released from the top electromagnetic lifting plate 7, so that the sample body 14 falls into stainless steel water tank 11 to complete the quenching operation. When conducting heat treatment tests on 10mm×10mm×10mm TC4 titanium alloy samples, deionized water can be injected into the stainless steel water tank 11 as a quenching medium as needed. The stainless steel water tank 11 has a capacity of 30 liters of water. Subsequently, the sample body 14 can be hung in the uniform temperature zone inside the quartz tube 3 via the hoisting line 13. The target temperature is set to 880℃ and the holding time is 30 minutes. When the K-type load thermocouple in the thermometer 5 detects that the furnace temperature reaches 880℃, the time relay automatically starts timing. After 30 minutes, the servo electric telescopic rod 10 is opened first, and 0.5 seconds later, the electromagnetic hoisting plate 7 is de-energized to release the sample. At this time, the sample will fall into the stainless steel water tank 11 within 1.8 seconds, thus completing the quenching process. Subsequently, the differential scanning calorimetry method in the existing technology is used for detection to complete the heat treatment test process. When performing heat treatment tests on 42CrMo alloy steel samples with dimensions of 10mm×10mm×50mm, the heating temperature can be set to 860℃ and the holding time adjusted to 20min. After the resistance heating furnace 2 is started, the temperature is monitored in real time by the thermocouple at the temperature measuring gauge 5. When the temperature reaches 860℃, the time relay starts timing. After the timing ends, the servo electric telescopic rod 10 and the electromagnetic lifting plate 7 can be activated according to the above steps to lower the sample. The sample will then be quenched within 2.1s. Rockwell hardness testing can be used afterward. When the data is qualified, the hardness value of the sample should fluctuate within ±3HRC. Furthermore, the display and control components and modules used in the aforementioned automatic control components are all existing technologies, which can be fully implemented by those skilled in the art. The power supply is also common knowledge in the field and needs no further explanation. The content protected by this utility model does not involve any improvement to the software.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device with automatic timing and automatic quenching, characterized in that: Includes a workbench (1), with a control box installed at the rear top of the workbench (1), a resistance heating furnace body (2) located at the upper front of the control box, and a quartz tube (3) located in the center of the interior of the resistance heating furnace body (2). A temperature controller (4) and a thermometer (5) are installed on one side of the automatic control box. The top of the quartz tube (3) is connected to a sealing flange tube (6) via a flange. An electromagnetic lifting plate (7) is installed on the top of the sealing flange tube (6). The bottom of the quartz tube (3) is connected to a sealing flange tube (8) via a flange. A sealing groove is provided at the lower front end of the sealing flange tube (8). A sealing block (9) is movably installed in the sealing groove. A servo electric telescopic rod (10) is installed at the rear side of the sealing flange tube (8). The end of the push rod of the servo electric telescopic rod (10) is connected to one side of the sealing block (9). A stainless steel water tank (11) is provided at the top of the workbench (1) and below the quartz tube (3).

2. The heat treatment device for automatic timing and automatic quenching according to claim 1, characterized in that: The center points of the stainless steel water tank (11) and the quartz tube (3) are on the same vertical line. The stainless steel water tank (11) has a capacity of thirty liters. A drain valve pipe (12) is connected to the lower part of the outer ring of the stainless steel water tank (11).

3. The heat treatment device for automatic timing and automatic quenching according to claim 1, characterized in that: A lifting line (13) is provided inside the quartz tube (3) and below the electromagnetic lifting plate (7). The top end of the lifting line (13) is connected to a magnetic block that is compatible with the electromagnetic lifting plate (7), and the bottom end of the lifting line (13) is provided with a sample body (14).

4. The heat treatment device for automatic timing and automatic quenching according to claim 1, characterized in that: The thermometer (5) has a K-type thermocouple, and the hot end of the K-type thermocouple is located inside the resistance heating furnace body (2). The self-control box is equipped with a time relay that is electrically connected to the servo electric telescopic rod (10), the electromagnetic hoisting plate (7), the temperature controller (4), and the thermometer (5).

5. The heat treatment device for automatic timing and automatic quenching according to claim 1, characterized in that: The sealing block (9) is disc-shaped, and a sealing ring is provided at the joint between the inner wall of the sealing flange tube (8) and the upper and lower ends of the sealing block (9).

6. The heat treatment device for automatic timing and automatic quenching according to claim 1, characterized in that: An air inlet pipe (15) is connected to the rear of the outer ring of the first sealing flange pipe (6), and an exhaust pipe (16) is provided at the lower front end of the second sealing flange pipe (8).

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