Novel device for detecting cooling temperature of molten iron
By laying a K-type thermocouple during the molding sand filling process and connecting it with the temperature signal collector, the problem of real-time monitoring of the iron liquid cooling temperature in high-temperature environments is solved, and effective control of the quality of the casting is achieved.
Patent Information
- Application Number
- CN202421774257.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The prior art is difficult to monitor the cooling temperature of the iron in real time under high temperature environments, resulting in the inability to effectively control the quality of the castings.
During the sand filling process, the K-type thermocouple is laid in advance at the points to be monitored and connected to the temperature signal collector to achieve real-time temperature monitoring and comparison.
Real-time detection of the iron cooling temperature and cooling speed is achieved, visual data support is provided, and the control ability of casting quality is significantly improved.
Smart Images
Figure CN222817915U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mold casting equipment, and more specifically to a new device for detecting the cooling temperature of molten iron. Background Art
[0002] There are nine major processes in the casting of automobile stamping molds, among which the smelting and pouring of molten iron are the most important. Controlling the cooling trend of molten iron poured into the mold box plays a vital role in improving the quality of castings. However, due to the working conditions of up to 1500℃ and the limitation that various detection materials cannot work continuously in high temperature environments, it is difficult to monitor the cooling temperature of molten iron in real time, and then more use casting simulation analysis software to analyze and predict. Although the existing simulation analysis technology can fully cover the prediction of the cooling temperature and cooling rate of cold iron, it is a pre-prediction and analysis after all, and cannot provide more accurate real-time detection data. Especially when using the cold iron process for casting, it is even more difficult to clearly grasp the effect of cold iron on the rapid cooling of molten iron. At the same time, the difference between the cooling temperature and cooling rate of the molten iron in the cold iron part and the molten iron in the conventional part cannot be compared and analyzed in the process, and the purpose of real-time detection cannot be achieved. Therefore, in view of this, the existing structure is studied and improved, and a new device for detecting the cooling temperature of molten iron is provided, in order to achieve a more practical purpose. Utility Model Content
[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a new device for detecting the cooling temperature of molten iron. During the process of molding sand filling, K-type thermocouples can be laid in advance at various points that need to be monitored, and with the cooperation of a temperature signal collector, real-time monitoring can be carried out during the process, so as to achieve a clear comparison of the temperature changes between the cold iron part and other parts, and achieve the purpose of real-time detection of the cooling temperature and cooling rate of the molten iron, providing visual data support for the effective implementation of the casting process. The control of the cooling temperature data can greatly improve the casting quality.
[0004] To solve the above problems, the utility model adopts the following technical solutions.
[0005] A novel device for detecting the cooling temperature of molten iron comprises a mold box and a mounting frame, wherein the mold box is provided with molding sand, the molding sand is provided with chilled iron, the chilled iron is provided with a cavity, and a casting is provided in the cavity, a temperature signal collector is installed on the top of the mounting frame, a plurality of signal lines are provided on the temperature signal collector, K-type thermocouples are provided on the outer surface of the chilled iron and in the cavity, one end of the signal line extends to the interior of the mold box and is electrically connected to the corresponding K-type thermocouple.
[0006] Furthermore, the molding sand is furan resin sand.
[0007] Furthermore, a heat-insulating layer with a high temperature resistance of 2000° C. is wrapped around the periphery of the connection between the signal wire and the K-type thermocouple.
[0008] Furthermore, the K-type thermocouple located on the outer surface of the chill is in contact with and connected to the outer surface of the chill, and the K-type thermocouple located in the chill cavity is in contact with and connected to the casting.
[0009] Furthermore, a pouring channel is provided on the top of the mold box, and the pouring channel extends into the mold box and is connected with the interior of the cold iron cavity.
[0010] Furthermore, a sand injection port is installed on the top of the mold box.
[0011] Furthermore, the temperature signal collector is located on one side of the molding box, and the distance between the two is greater than 20m.
[0012] Compared with the prior art, the advantages of the present invention are:
[0013] This solution, by laying K-type thermocouples at various points that need to be monitored in advance during the process of molding sand filling, and using them in conjunction with the temperature signal collector, conducts real-time monitoring during the process, achieves a clear comparison of the temperature changes between the cold iron part and other parts, and achieves the purpose of real-time detection of the cooling temperature and cooling rate of the molten iron, providing visual data support for the effective implementation of the casting process. The control of the cooling temperature data can greatly improve the casting quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure of the middle A position;
[0016] Figure 3 This is a schematic diagram of the position structure of the mounting frame and the temperature signal collector of the utility model.
[0017] Description of the numbers in the figure:
[0018] 1. Mould box;
[0019] 2. Mounting frame;
[0020] 3. Molding sand;
[0021] 4. Cold iron;
[0022] 5. Castings;
[0023] 6. Temperature signal collector;
[0024] 7. Signal line;
[0025] 8. K-type thermocouple;
[0026] 9. Pouring channel;
[0027] 10. Sand injection port. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model. Example
[0029] See also Figure 1-3 A novel device for detecting the cooling temperature of molten iron comprises a mold box 1 and a mounting frame 2, the mold box 1 is provided with molding sand 3, the molding sand 3 is provided with chill 4, the chill 4 is provided with a cavity, and the cavity is provided with a casting 5, a temperature signal collector 6 is installed on the top of the mounting frame 2, a plurality of signal lines 7 are provided on the temperature signal collector 6, K-type thermocouples 8 are provided on the outer surface of the chill 4 and in the cavity, one end of the signal line 7 extends to the inside of the mold box 1 and is electrically connected to the corresponding K-type thermocouple 8.
[0030] See also Figure 1 , molding sand 3 is furan resin sand.
[0031] See also Figure 1 The outer periphery of the connection between the signal line 7 and the K-type thermocouple 8 is wrapped with a heat insulation layer with a high temperature resistance of 2000°C.
[0032] See also Figure 1 and Figure 2 The K-type thermocouple 8 located on the outer surface of the cold iron 4 is in contact with the outer surface of the cold iron 4 , and the K-type thermocouple 8 located in the cavity of the cold iron 4 is in contact with the casting 5 .
[0033] See also Figure 1 A pouring channel 9 is provided on the top of the mold box 1, and the pouring channel 9 extends into the mold box 1 and is connected with the interior of the cold iron 4 cavity.
[0034] See also Figure 1 A sand injection port 10 is also installed on the top of the mold box 1.
[0035] See also Figure 1 The temperature signal collector 6 is located on one side of the molding box 1, and the distance between the two is greater than 20m.
[0036] When in use: a detection system capable of detecting the temperature of molten iron in real time is formed by a temperature signal collector 6, a signal line 7, a K-type thermocouple 8, a chill 4, and molding sand 3. In the process of filling the molding sand 3, the K-type thermocouple 8 is laid in advance at each point that needs to be monitored. In order to prevent the signal line 7 from being burned due to continuous operation in an environment of 1500°C, a heat-insulating layer with a high temperature resistance of 2000°C is wound around the connection position between the signal line 7 and the K-type thermocouple 8. In order to maintain a sufficient safety distance from the molding box 1, the length of the signal line 7 specifically used to transmit the temperature signal is usually maintained at more than 20 meters. In addition, in order to be able to monitor multiple points in real time, a temperature signal collector 6 with 8 channels is developed, and each channel is evenly distributed at various points of the chill 4 and the casting 5, so as to carry out real-time monitoring during the process, realize a clear comparison of the temperature changes of the chill 4 and other parts, and achieve the purpose of real-time detection of the cooling temperature and cooling rate of the molten iron, which provides visual data support for the effective implementation of the casting process. The control of the cooling temperature data can greatly improve the quality of the casting.
[0037] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.
Claims
1. A novel device for detecting the cooling temperature of molten iron, comprising a molding box (1) and a mounting frame (2), characterized in that: The molding box (1) is provided with molding sand (3), the molding sand (3) is provided with a chill (4), the chill (4) is provided with a cavity, and the cavity is provided with a casting (5), a temperature signal collector (6) is installed on the top of the mounting frame (2), a plurality of signal wires (7) are provided on the temperature signal collector (6), a K-type thermocouple (8) is provided on the outer surface of the chill (4) and in the cavity, and one end of the signal wire (7) extends to the inside of the molding box (1) and is electrically connected to the corresponding K-type thermocouple (8).
2. A novel device for detecting the cooling temperature of molten iron according to claim 1, characterized in that: The molding sand (3) is furan resin sand.
3. A novel device for detecting the cooling temperature of molten iron according to claim 1, characterized in that: The outer periphery of the connection between the signal line (7) and the K-type thermocouple (8) is wrapped with a heat insulation layer with a high temperature resistance of 2000°C.
4. A novel device for detecting the cooling temperature of molten iron according to claim 1, characterized in that: The K-type thermocouple (8) located on the outer surface of the cold iron (4) is in contact with the outer surface of the cold iron (4), and the K-type thermocouple (8) located in the cavity of the cold iron (4) is in contact with the casting (5).
5. A novel device for detecting the cooling temperature of molten iron according to claim 1, characterized in that: A pouring channel (9) is provided on the top of the mold box (1), and the pouring channel (9) extends into the mold box (1) and is connected to the interior of the cold iron (4) cavity.
6. A novel device for detecting the cooling temperature of molten iron according to claim 1, characterized in that: A sand injection port (10) is also installed on the top of the molding box (1).
7. A novel device for detecting the cooling temperature of molten iron according to claim 1, characterized in that: The temperature signal collector (6) is located on one side of the molding box (1), and the distance between the two is greater than 20m.