Control system for thermal treatment of typical metals

Abstract

The invention relates to the technical field of metal heat treatment, in particular to a control system for typical metal heat treatment, which comprises a processor, an execution module, an acquisition module, a storage unit, an input module and a prompt unit, and is characterized in that the acquisition module is used for acquiring size data and weight data of a metal piece to be subjected to heat treatment and temperature information in a heating furnace; the storage unit is used for storing density and heat conductivity coefficient of typical metal and change relation data of temperature and time in the heating process of the metal piece; the input module is used for inputting product information of a metal piece to be subjected to heat treatment and temperature and time information needing to be subjected to heat treatment, and the processor is used for receiving data of the input module and the acquisition module. The accurate time when the center temperature of the metal piece to be subjected to heat treatment reaches the preset value can be calculated, the heating time control accuracy is improved, and therefore the heat treatment effect of the metal piece is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal heat treatment, and particularly to a control system for typical metal heat treatment. Background Art

[0002] In order to obtain different service performances and endow metal workpieces with required mechanical, physical, and chemical properties, the heat treatment process is a good way; furthermore, the metal heat treatment process is a process of heating metal materials in a certain medium to an appropriate temperature, maintaining for a certain time at this temperature, and then cooling at different speeds in different media, so as to control its properties by changing the microscopic structure on the surface or inside of the metal material.

[0003] When heat-treating a massive metal, during the heating-up process, when the surface of the massive metal reaches the preset temperature, the inside of the massive metal does not reach the set temperature, and it is necessary to extend the heating time. The existing methods for extending the heating time are generally controlled by the experience of operators. However, for metals of different sizes, when relying on the experience of operators to increase or decrease the heating time proportionally, there will be obvious errors. Whether the heating time is too long or too short will affect the heat treatment effect, and when the heating time is too long, it will also cause waste of energy; moreover, for metals of different materials, there are significant differences in their thermal conductivity coefficients, and the method of extending the heating time relying on manual experience has obvious deficiencies. Summary of the Invention

[0004] The purpose of the present invention is to solve the drawbacks existing in the prior art, and to propose a control system for typical metal heat treatment.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A control system for typical metal heat treatment includes a processor, an execution module, a collection module, a storage unit, an input module, and a prompt unit. The collection module is used to collect the size data, weight data of the metal workpiece to be heat-treated, and the temperature information inside the heating furnace; the storage unit is used to store the density and thermal conductivity coefficient of typical metals, as well as the data of the relationship between temperature and time during the heating process of the metal workpiece; the input module is used to input the product information of the metal workpiece to be heat-treated, as well as the temperature and time information required for heat treatment. The processor is used to receive the data from the input module and the collection module, call the data in the storage unit, perform comparison operations, and output instructions to the execution module; the execution module is used to receive the instructions from the processor and control the operating state of the heating devices inside the heating furnace according to the instructions; the prompt unit is used to receive the information collected by the collection module and the abnormal information in the processing result of the processor, and feedback the received data to the input module.

[0007] Preferably, a display unit is further provided between the acquisition module and the prompting unit.

[0008] Preferably, it further includes a remote control terminal which is used to receive the data received by the prompting unit, the remote control terminal is also used to consult the data information in the storage unit, and the remote control terminal can also remotely control the input module.

[0009] Preferably, the acquisition module includes a temperature acquisition module, a dimension measurement module and a weighing module. The temperature acquisition module is used to acquire the temperature inside the heating furnace and the surface temperature of the metal piece to be heat-treated. The dimension measurement module is used to acquire the dimensions of the metal piece to be heat-treated. The weighing module is used to obtain the mass of the metal block.

[0010] Preferably, the operation method of this control system includes the following steps:

[0011] Set heat treatment parameters: Set the heat treatment temperature and holding time according to the material of the metal piece to be heat-treated and the heat treatment requirements.

[0012] Perform the first heating: Put the metal piece to be heat-treated into the heating furnace and perform the first heating treatment. Acquire the temperature inside the heating furnace and the surface temperature of the metal piece to be heat-treated. When the surface temperature of the metal piece to be heat-treated reaches the set heat treatment temperature, the first heating treatment is completed.

[0013] Perform the second heating: After the metal piece to be heat-treated completes the first heating treatment, acquire the dimensions and thermal conductivity of the metal piece to be heat-treated. Calculate the time required for the center of the metal piece to be heat-treated to rise to the set heat treatment temperature through the processor, and continue heating until the temperature at the center point of the metal piece remains stable.

[0014] Perform the holding treatment: Perform the holding treatment at the set temperature until the heating is completed.

[0015] Preferably, during the second heating process, for regular metal pieces, calculate the position of the center point of the metal piece to be heat-treated according to the dimensions of the metal piece to be heat-treated, and at the same time calculate the minimum distance from the center point to the surface layer of the metal piece. Calculate the time required for the center of the metal piece to be heat-treated to rise to the set heat treatment temperature according to the thermal conductivity of the metal piece to be processed.

[0016] Preferably, during the second heating process, for irregular metal pieces, calculate the volume of the metal piece to be heat-treated according to the mass and density of the metal piece to be heat-treated, calculate the radius of the spherical metal piece with the same volume, and use this radius to calculate the time required for the center of the metal piece to be heat-treated to rise to the set heat treatment temperature in combination with the thermal conductivity of the metal piece to be processed.

[0017] The beneficial effects of the present invention are:

[0018] 1. In this control system, the parameter indicators of the metal parts to be heat-treated are collected, and the more accurate time when the central temperature of the metal parts to be heat-treated reaches the preset value can be calculated, improving the accuracy of heating time control, and thus ensuring the effect of metal part heat treatment.

[0019] 2. In this control system, the data of the relationship between temperature and time during the heating process of metal parts in the typical metal heat treatment process are stored in the storage unit, which can be used to correct the processing results of the processor, further improving the accuracy of time control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the system block diagram of the control system for typical metal heat treatment proposed by the present invention;

[0021] Figure 2 It is the system block diagram of the acquisition module in the control system for typical metal heat treatment proposed by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Refer to Figure 1-2 , the control system for typical metal heat treatment includes a processor, an execution module, an acquisition module, a storage unit, an input module and a prompt unit. The acquisition module is used to acquire the size data, weight data of the metal parts to be heat-treated, and the temperature information inside the heating furnace; the storage unit is used to store the density and thermal conductivity of typical metals, as well as the data of the relationship between temperature and time during the heating process of metal parts; the input module is used to input the product information of the metal parts to be heat-treated, as well as the temperature and time information required for heat treatment. The processor is used to receive the data from the input module and the acquisition module, call the data in the storage unit, perform comparison operations, and output instructions to the execution module; the execution module is used to receive the instructions from the processor and control the operating state of the heating devices inside the heating furnace according to the instructions; the prompt unit is used to receive the information collected by the acquisition module and the abnormal information in the processing results of the processor, and feedback the received data to the input module.

[0024] A display unit is also provided between the acquisition module and the prompt unit.

[0025] It also includes a remote control terminal. The remote control terminal is used to receive the data received by the prompt unit. The remote control terminal is also used to view the data information in the storage unit, and the remote control terminal can also remotely control the input module.

[0026] The acquisition module includes a temperature acquisition module, a dimension measurement module, and a weighing module. The temperature acquisition module is used to acquire the temperature inside the heating furnace and the surface temperature of the metal piece to be heat-treated. The dimension measurement module is used to acquire the dimensions of the metal piece to be heat-treated. The weighing module is used to obtain the mass of the metal block.

[0027] The operation method of this control system includes the following steps:

[0028] Set heat treatment parameters: Set the heat treatment temperature and the holding time according to the material of the metal piece to be heat-treated and the heat treatment requirements.

[0029] Perform the first heating: Place the metal piece to be heat-treated into the heating furnace and perform the first heating treatment. Acquire the temperature inside the heating furnace and the surface temperature of the metal piece to be heat-treated. When the surface temperature of the metal piece to be heat-treated reaches the set heat treatment temperature, the first heating treatment is completed.

[0030] Perform the second heating: After the metal piece to be heat-treated completes the first heating treatment, acquire the dimensions and the thermal conductivity of the metal piece to be heat-treated. Calculate, through the processor, the time required for the center of the metal piece to be heat-treated to reach the set heat treatment temperature, and continue heating until the temperature at the center point of the metal piece remains stable.

[0031] Perform the holding treatment: Perform the holding treatment at the set temperature until the heating is completed.

[0032] During the second heating process, for regular metal pieces, calculate the position of the center point of the metal piece to be heat-treated according to the dimensions of the metal piece to be heat-treated, and at the same time calculate the minimum distance from the center point to the surface layer of the metal piece. Calculate, according to the thermal conductivity of the metal piece to be treated, the time required for the center of the metal piece to be heat-treated to reach the set heat treatment temperature.

[0033] During the second heating process, for irregular metal pieces, calculate the volume of the metal piece to be heat-treated according to the mass and density of the metal piece to be heat-treated, calculate the radius of a spherical metal piece with the same volume, and use this radius, combined with the thermal conductivity of the metal piece to be treated, to calculate the time required for the center of the metal piece to be heat-treated to reach the set heat treatment temperature.

[0034] In this control system, by acquiring the parameter indicators of the metal piece to be heat-treated, it is possible to calculate a relatively accurate time for the center temperature of the metal piece to be heat-treated to reach the preset value, improving the accuracy of heating time control, and thus ensuring the effect of metal piece heat treatment.

[0035] In this control system, the data of the relationship between temperature and time during the heating process of metal parts in a typical metal heat treatment process is stored in the storage unit, which can be used to correct the processing results of the processor and further improve the accuracy of time control.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A control system for typical metal heat treatment, characterized in that, it includes a processor, an execution module, a collection module, a storage unit, an input module and a prompt unit. The collection module is used to collect the size data, weight data of the metal parts to be heat treated and the temperature information inside the heating furnace; the storage unit is used to store the density and thermal conductivity of typical metals, as well as the data of the temperature-time change relationship during the heating process of the metal parts; the input module is used to input the product information of the metal parts to be heat treated and the temperature and time information required for heat treatment. The processor is used to receive the data from the input module and the collection module, call the data in the storage unit, perform comparison operations, and output instructions to the execution module; the execution module is used to receive the instructions from the processor and control the operating state of the heating devices inside the heating furnace according to the instructions; the prompt unit is used to receive the information collected by the collection module and the abnormal information in the processing result of the processor, and feedback the received data to the input module.

2. The control system for typical metal heat treatment according to claim 1, characterized in that, a display unit is further provided between the collection module and the prompt unit.

3. The control system for typical metal heat treatment according to claim 2, characterized in that, it further includes a remote control terminal. The remote control terminal is used to receive the data received by the prompt unit, the remote control terminal is also used to consult the data information in the storage unit, and the remote control terminal can also remotely control the input module.

4. The control system for typical metal heat treatment according to claim 1, characterized in that, the collection module includes a temperature collection module, a size measurement module and a weighing module. The temperature collection module is used to collect the temperature inside the heating furnace and the surface temperature of the metal parts to be heat treated. The size measurement module is used to collect the size of the metal parts to be heat treated. The weighing module is used to obtain the mass of the metal block.

5. The control system for typical metal heat treatment according to any one of claims 1-4, characterized in that, the operation method of this control system includes the following steps: Set heat treatment parameters: Set the heat treatment temperature and holding time according to the material of the metal parts to be heat treated and the heat treatment requirements; Perform the first heating: Put the metal parts to be heat treated into the heating furnace, perform the first heating treatment, collect the temperature inside the heating furnace and the surface temperature of the metal parts to be heat treated. When the surface temperature of the metal parts to be heat treated reaches the set heat treatment temperature, the first heating treatment is completed; Perform the second heating: After the metal parts to be heat treated complete the first heating treatment, obtain the size and thermal conductivity of the metal parts to be heat treated. Calculate the time required for the center of the metal parts to be heat treated to rise to the set heat treatment temperature through the processor, and continue heating until the temperature at the center point of the metal parts remains stable; Perform the holding treatment: Perform the holding treatment at the set temperature until the heating is completed.

6. The control system for typical metal heat treatment according to claim 5, characterized in that, During the secondary heating process, for regular metal parts, based on the size of the metal part to be heat-treated, calculate the position of the center point of the metal part to be heat-treated, and at the same time calculate the minimum distance from the center point to the surface layer of the metal part. According to the thermal conductivity of the metal part to be processed, calculate the time required for the center of the metal part to be heat-treated to reach the set heat treatment temperature.

7. The control system for typical metal heat treatment according to claim 5, characterized in that During the secondary heating process, for irregular metal parts, based on the mass and density of the metal part to be heat-treated, calculate the volume of the metal part to be heat-treated, calculate the radius of a spherical metal part with the same volume, and use this radius, combined with the thermal conductivity of the metal part to be processed, to calculate the time required for the center of the metal part to be heat-treated to reach the set heat treatment temperature.

Images