CN119351717A - A heat treatment system and method - Google Patents
A heat treatment system and method Download PDFInfo
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- CN119351717A CN119351717A CN202411501559.2A CN202411501559A CN119351717A CN 119351717 A CN119351717 A CN 119351717A CN 202411501559 A CN202411501559 A CN 202411501559A CN 119351717 A CN119351717 A CN 119351717A
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- 238000010438 heat treatment Methods 0.000 title abstract description 70
- 238000000034 method Methods 0.000 title abstract description 37
- 238000010894 electron beam technology Methods 0.000 abstract description 136
- 238000003466 welding Methods 0.000 abstract description 134
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000003860 storage Methods 0.000 description 96
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- 239000000463 material Substances 0.000 description 8
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- 229910001069 Ti alloy Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
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- 238000000137 annealing Methods 0.000 description 3
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- 238000005260 corrosion Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
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- 238000012545 processing Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
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Abstract
本申请提供的一种热处理系统及方法，所述方法包括：确定待焊接件在贮箱上的焊接位置；对焊接位置进行预处理，得到目标贮箱；利用真空电子束枪对待焊接件进行预热，得到预热待焊接件；利用真空电子束枪将预热待焊接件的焊缝正面焊接在目标贮箱上的焊接位置处；当检测到目标贮箱的冷却时间满足预设时间后，利用真空电子束枪发射真空电子束流对目标贮箱的热处理区域进行热处理。从而经真空电子束枪焊接后同步对目标贮箱的热处理区域进行局部热处理，有效地解决了具有管理装置的贮箱不能进行退火处理的问题，进而有效地提高了贮箱的质量问题，也使得能够降低更换贮箱的成本问题。
The present application provides a heat treatment system and method, the method comprising: determining the welding position of the workpiece to be welded on the tank; pre-treating the welding position to obtain the target tank; preheating the workpiece to be welded using a vacuum electron beam gun to obtain a preheated workpiece to be welded; welding the front face of the weld of the preheated workpiece to be welded to the welding position on the target tank using a vacuum electron beam gun; when it is detected that the cooling time of the target tank meets the preset time, using the vacuum electron beam gun to emit a vacuum electron beam flow to heat treat the heat treatment area of the target tank. Thus, after welding with the vacuum electron beam gun, the heat treatment area of the target tank is locally heat treated synchronously, effectively solving the problem that the tank with the management device cannot be annealed, thereby effectively improving the quality of the tank, and also enabling the cost of replacing the tank to be reduced.
Description
Technical Field
The application relates to the technical field of heat treatment of titanium alloy storage tanks, in particular to a heat treatment system and a heat treatment method.
Background
In recent years, with the continuous improvement of the requirements of space development on carrying capacity, a storage tank is used as an important system for storing working media, and the structure of the storage tank is developing towards the directions of large size and modularization. In order to meet the requirements of the storage tank in terms of structural reliability, light weight and rapid manufacturing, the storage tank is often required to be correspondingly processed by a vacuum heat treatment technology and a vacuum electron beam welding technology.
However, the storage tank is provided with the management device, and after the storage tank is welded by using a vacuum heat treatment technology and a vacuum electron beam welding technology, the storage tank provided with the management device cannot be annealed, so that the quality problem of the storage tank is caused, and the problem that the storage tank provided with the management device cannot be annealed is needed to be solved.
Disclosure of Invention
Based on the shortcomings of the prior art, the application provides a heat treatment system and a heat treatment method, which are used for solving the problem that a storage tank provided with a management device cannot be subjected to annealing treatment.
In order to achieve the above object, the present application provides the following technical solutions:
The first aspect of the application provides a heat treatment system, which comprises a vacuum electron beam device, a storage tank, a management device and a vacuum electron beam gun;
The vacuum electron beam equipment consists of a vacuum electron beam tailstock, a vacuum electron beam chuck and a vacuum electron beam working platform;
the vacuum electron beam working platform is horizontally and oppositely provided with the vacuum electron beam tailstock and the vacuum electron beam chuck;
The storage tank is arranged between the vacuum electron beam tailstock and the vacuum electron beam chuck, and is arranged on the vacuum electron beam chuck through a supporting cylinder body, one part of the storage tank is clamped in the supporting cylinder body, and the other part of the storage tank is fixed on the outer side of the supporting cylinder body through a storage tank welding tool top block;
The management device is arranged at the front end of the storage tank and is used for managing the flow direction of liquid in the vacuum state of the storage tank;
And when the heat treatment is carried out, the vacuum electron beam gun is arranged right above the heat treatment area of the storage box, and the vacuum electron beam emitted by the vacuum electron beam gun carries out the heat treatment on the heat treatment area of the storage box.
Optionally, in the heat treatment system, the welding voltage of the vacuum electron beam gun ranges from 70KV to 90KV.
Optionally, in the above heat treatment system, the preheating current of the vacuum electron beam emitted by the vacuum electron beam gun ranges from 0.3mA to 0.8mA.
Optionally, in the above heat treatment system, the welding current of the vacuum electron beam emitted by the vacuum electron beam gun ranges from 3.2mA to 8.5mA.
Optionally, in the above heat treatment system, the focusing beam current of the vacuum electron beam current ranges from 420mA to 425mA.
Optionally, in the above heat treatment system, the material of the storage tank is titanium alloy material.
Optionally, in the above heat treatment system, the material of the tank welding tooling top block is wood.
Optionally, in the above heat treatment system, the storage tank is disposed in a gap range between the vacuum electron beam tailstock and the vacuum electron beam chuck of less than 0.1mm.
The second aspect of the present application provides a heat treatment method applied to the heat treatment system disclosed in the first aspect of the embodiment of the present application, the method comprising:
Determining the welding position of a piece to be welded on the storage tank;
preprocessing the welding position to obtain a target storage tank;
Preheating the workpiece to be welded by using a vacuum electron beam gun to obtain a preheated workpiece to be welded;
welding the front side of the welding seam of the preheated workpiece to be welded at a welding position on the target storage box by utilizing the vacuum electron beam gun;
and when the cooling time of the target storage box is detected to meet the preset time, utilizing the vacuum electron beam gun to emit vacuum electron beam current to perform heat treatment on the heat treatment area of the target storage box.
Optionally, in the above heat treatment method, the pre-treating the welding position to obtain a target storage tank includes:
cleaning the welded junction on the welding position by using a solvent to obtain a clean welding position;
And mechanically removing the oxide layer on the surface of the welding line at the clean welding position to obtain the target storage tank.
The application provides a heat treatment system which comprises a vacuum electron beam device, a storage tank, a management device and a vacuum electron beam gun, wherein the vacuum electron beam device consists of a vacuum electron beam tail seat, a vacuum electron beam chuck and a vacuum electron beam working platform, the vacuum electron beam tail seat and the vacuum electron beam chuck are horizontally and oppositely arranged on the vacuum electron beam working platform, the storage tank is arranged between the vacuum electron beam tail seat and the vacuum electron beam chuck and is arranged on the vacuum electron beam chuck through a supporting cylinder body, one part of the storage tank is clamped in the supporting cylinder body, the other part of the storage tank is fixed on the outer side of the supporting cylinder body through a storage tank welding tool top block, the management device is arranged at the front end of the storage tank and is used for managing the flow direction of liquid in a vacuum state of the storage tank, and when heat treatment is carried out, the vacuum electron beam gun is arranged right above a heat treatment area of the storage tank, and the heat treatment area of the storage tank is subjected to heat treatment by the vacuum electron beam flow emitted by the vacuum electron beam gun. Therefore, the heat treatment system can be used for carrying out heat treatment on the storage tank with the management device, so that the aim of removing stress is fulfilled, and the problem that the storage tank provided with the management device cannot be annealed is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a heat treatment system according to an embodiment of the present application;
FIG. 2 is a schematic view of a heat treatment area of a tank according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of a heat treatment method according to another embodiment of the present application;
Fig. 4 is a flowchart of a method for preprocessing a welding position according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the present application, 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 one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
As is clear from the background art, in the conventional heat treatment technology, after a tank provided with a management device is welded by vacuum heat treatment and vacuum electron beam welding, the tank cannot be annealed, which causes quality problems in the tank.
Therefore, the embodiment of the application provides a heat treatment system which comprises a vacuum electron beam device, a storage box, a management device and a vacuum electron beam gun, so that the storage box provided with the management device is annealed by utilizing vacuum electron beam current emitted by the vacuum electron beam gun during heat treatment, namely annealing treatment, thereby improving the quality of the storage box.
Referring now to fig. 1, there is shown a schematic configuration of a heat treatment system according to an embodiment of the present application, which includes a vacuum electron beam apparatus 1, a tank 2, a management device 3, and a vacuum electron beam gun 4.
The vacuum electron beam device 1 is composed of a vacuum electron beam tailstock 5, a vacuum electron beam chuck 6 and a vacuum electron beam working platform 7.
The vacuum electron beam working platform 7 is horizontally and oppositely provided with a vacuum electron beam tailstock 5 and a vacuum electron beam chuck 6.
Specifically, the horizontal relative arrangement of the vacuum electron beam tailstock 5 and the vacuum electron beam chuck 6 ensures the stability between the tailstock and the chuck, helps to improve the fixity of the workpiece during processing, reduces vibration and displacement, and the arrangement helps to better align the workpiece, ensure higher accuracy in electron beam welding or processing, improves weld quality, and in some cases, the horizontal design helps to better manage the cooling system, ensure temperature control of the welding area, and prevent overheating.
The storage tank 2 is arranged between the vacuum electron beam tailstock 5 and the vacuum electron beam chuck 6 and is arranged on the vacuum electron beam chuck 6 through a support cylinder 8, one part of the storage tank 2 is clamped in the support cylinder 8, and the other part is fixed on the outer side of the support cylinder 8 through a storage tank welding tool top block 9.
It will be appreciated that the mounting of the reservoir 2 to the vacuum electron beam apparatus 1 in the above-described manner can enhance the stability of the reservoir 2, ensure that the position remains unchanged during welding, and by this mounting, the accuracy in welding can be improved, and the deformation and stress concentration can be reduced, thereby improving the welding quality.
In addition, the design of the support cylinder is beneficial to better managing heat, reducing a heat affected zone in the welding process, improving material characteristics, and embedding the storage tank 2 into the design of the support cylinder, so that the whole structure is more compact, saving space and optimizing equipment layout.
In some embodiments, the material of the tank 2 is a titanium alloy material, because the titanium alloy has an excellent strength to weight ratio, so that the tank 2 reduces the overall weight while maintaining structural strength, and the titanium alloy material has corrosion resistance, high temperature performance, and excellent weldability. Of course, the embodiment of the present application is not limited to this material, and may be specifically determined according to the requirements.
In some embodiments, the material of the tank welding tool top block 9 is wood, which has good damping characteristics, can effectively absorb vibration in the welding process, protects the welding workpiece, is lighter than metal materials, is convenient to operate and adjust, is beneficial to improving the working efficiency, is easy to process and mold, can be customized according to specific requirements, and meets specific welding requirements.
In some embodiments, the reservoir 2 is disposed in a gap between the vacuum electron beam tailstock 5 and the vacuum electron beam chuck 6 in a range of less than 0.1mm so that the weld is not beveled.
The management device 3 is provided at the front end of the tank 2, and is used for managing the flow direction of the liquid in the vacuum state of the tank 2.
Specifically, the management device 3 on the storage tank 2 can ensure that the liquid flows according to a preset path, so that leakage or incorrect flow is avoided, and in a vacuum environment, the potential safety risk can be reduced through reasonable flow direction management, and the liquid is prevented from overflowing or generating bubbles.
In the heat treatment, the vacuum electron beam gun 4 is placed directly above the heat treatment region a of the storage tank 2, and the vacuum electron beam B emitted from the vacuum electron beam gun 4 heat-treats the heat treatment region a of the storage tank 2.
It should be noted that the heat treatment area a of the tank 2 refers to an area generated by welding the workpiece to be welded to the tank 2 by using the vacuum electron beam B emitted from the vacuum electron beam gun 4, and thus, in some embodiments, the welding voltage of the vacuum electron beam gun 4 ranges from 70KV to 90KV. The welding current of the vacuum electron beam B emitted by the vacuum electron beam gun 4 ranges from 3.2mA to 8.5mA, the welding speed of the vacuum electron beam gun 4 is 1500mm/min, the butt joint beam of the vacuum electron beam B is 0.2mA, and the focusing beam is 425mA. However, the embodiments of the present application are not limited to the above numerical ranges, and may be specifically set according to requirements. The schematic structure of the heat treatment area a of the tank 2 can be seen from what is shown in fig. 2.
It should be noted that, when the welding piece is welded on the storage tank 2, the vacuum electron beam B emitted by the vacuum electron beam gun 4 is used to preheat the welding piece before welding, so in some embodiments, the preheating current range of the vacuum electron beam B preheated before welding is 0.3mA to 0.8mA, the welding voltage range of the vacuum electron beam gun 4 is 70-90KV, the butt welding beam of the vacuum electron beam B is 0.2mA, the focusing beam range of the vacuum electron beam B is 420mA to 425mA, and the preheating range of the welding piece and the storage tank 2 to be welded is within 10mm of the center of the welding seam and both sides of the welding seam. However, the embodiments of the present application are not limited to the above numerical ranges, and may be specifically set according to requirements.
The application provides a heat treatment system which comprises a vacuum electron beam device, a storage tank, a management device and a vacuum electron beam gun, wherein the vacuum electron beam device consists of a vacuum electron beam tail seat, a vacuum electron beam chuck and a vacuum electron beam working platform, the vacuum electron beam tail seat and the vacuum electron beam chuck are horizontally and oppositely arranged on the vacuum electron beam working platform, the storage tank is arranged between the vacuum electron beam tail seat and the vacuum electron beam chuck and is arranged on the vacuum electron beam chuck through a supporting cylinder body, one part of the storage tank is clamped in the supporting cylinder body, the other part of the storage tank is fixed on the outer side of the supporting cylinder body through a storage tank welding tool top block, the management device is arranged at the front end of the storage tank and is used for managing the flow direction of liquid in a vacuum state of the storage tank, and when heat treatment is carried out, the vacuum electron beam gun is arranged right above a heat treatment area of the storage tank, and the heat treatment area of the storage tank is subjected to heat treatment by the vacuum electron beam flow emitted by the vacuum electron beam gun. Therefore, the heat treatment system can be used for carrying out heat treatment on the storage tank with the management device, so that the aim of removing stress is fulfilled, and the problem that the storage tank provided with the management device cannot be annealed is solved.
Corresponding to the heat treatment system provided by the embodiment of the present application, referring to fig. 3, a flowchart of a heat treatment method provided by the embodiment of the present application is shown, and specifically includes the following steps:
s301, determining the welding position of the piece to be welded on the storage tank.
Specifically, in order to accurately determine the welding position of the workpiece to be welded on the storage tank, the correct welding position of the workpiece to be welded on the storage tank can be effectively determined by referring to the design drawing related to the storage tank, and the smooth progress of the welding process and the reliability of the welding quality are ensured. Finally, the center line and the edge line of the piece to be welded are marked on the storage box, so that the accurate alignment of the butt joint surface of the piece to be welded and the storage box is ensured.
When the parts to be welded are multiple parts, the butt joint clearance is less than 0.1mm and is fixed on a workbench of the welding machine, and the welding line is not beveled.
S302, preprocessing the welding position to obtain the target storage tank.
It will be appreciated that in order to ensure that the surface of the weld site of the tank is flat, there is no significant roughness to increase the yield after the weld is completed, and therefore, a pretreatment of the weld site is required to obtain a target tank with a flat surface.
Then, the processed target storage tank is clamped in a welding workbench, namely a vacuum electron beam working platform, and then the position of a welding seam is aligned, so that the jumping of the welding seam is less than 0.1mm, the dislocation of the welding seam is less than 0.1mm, the clearance of the welding seam is less than 0.1mm, then the vacuum electron beam working platform is placed in a welding machine to be vacuumized, so that the vacuum degree reaches a preset value of 5 x 10e-2Pa, the welding quality is improved, in a low vacuum environment, the existence of gas is reduced, the risks of oxidization and pollution in the welding process are reduced, the strength and the stability of a welding joint are improved, the good vacuum environment is favorable for focusing of electron beams, the energy utilization rate is improved, the high efficiency and the accuracy of the welding process are ensured, and under the vacuum condition, the heat dissipation is more controllable, the size of a heat affected zone is reduced, the deformation and the stress concentration are reduced, and the moving speed of an electron beam is accelerated, so that the welding efficiency is improved, the production period is shortened, the pollutants on the surface of a workpiece are removed, the welding effect is ensured, and the welding effect is improved.
Optionally, in another embodiment of the present application, a specific implementation of step S302, as shown in fig. 4, includes the following steps:
S401, cleaning the welding mouth on the welding position by using a solvent to obtain a clean welding position.
Specifically, in order to effectively clean the welding position, a good basis can be provided for the subsequent welding process, a proper solvent can be selected firstly according to the type of a piece to be welded and the property of pollutants, such as isopropanol, acetone or a special cleaning agent, secondly, a cleaning tool is prepared, cloth or wiping paper free of fiber falling is prepared so as to ensure no impurity is left in the cleaning process, a proper amount of the selected solvent is smeared on the welding position, a spray bottle or a soaking method can be used for ensuring that the solvent uniformly covers the welding position, then wiping cleaning is performed, the prepared cloth or wiping paper is used for lightly wiping the welding position so as to remove greasy dirt, dust and other pollutants, then the cleaning is repeated, the smearing and wiping processes can be repeated according to the pollution degree if required until the welding position is clean, then the drying process is performed, after cleaning, natural drying of the welding position needs to be ensured, or air blowing and other equipment is used for accelerating the drying process so as to ensure no residual solvent, finally, the cleaning effect can be checked, the welding position can be ensured to be clean clearly and no residues can be obtained by manually checking the surface pollution.
S402, mechanically removing an oxide layer on the surface of the welding line at the clean welding position to obtain the target storage tank.
After the welded junction on the welding position is cleaned, the oxide layer on the surface of the welding line is removed, so that the welding quality and the service life of the target storage tank are ensured.
In particular, it is possible to first prepare tools and materials by selecting a suitable mechanical tool such as an angle grinder, a grinder or a manual grinding tool, and by preparing sandpaper or grinding wheel of a suitable size so as to effectively remove the oxide layer, it is generally recommended to start from coarse size and then gradually use fine size, and secondly to secure protection by ensuring that appropriate personal protective equipment such as goggles, gloves and masks are worn before the operation of removing the oxide layer to prevent damages to the body by metal chips and dust, and then to fix the target tank, by firmly placing the target tank on a table, ensuring that it does not move when removing the oxide layer, to ensure the safety and accuracy of the operation, and then to mechanically remove the oxide layer by gently grinding the surface of the weld using the selected tool, starting from the edge of the weld and gradually moving toward the center. Maintaining uniform pressure, avoiding excessive concentration at a certain point so as not to damage the substrate, periodically checking the removal effect, ensuring that the oxide layer is completely removed, exposing a clean metal surface, cleaning residues, namely cleaning metal scraps and dust on the surface of the welding seam by using compressed air or a brush after the oxide layer is removed, ensuring that the surface is clean and tidy, and finally checking the surface state, namely, ensuring that no oxide layer remains, and ensuring that the surface is smooth and free of obvious defects by manually checking the surface of the welding seam after the removal. If necessary, a subsequent surface treatment, such as polishing or coating with a corrosion-resistant layer, may be performed to improve the corrosion resistance and aesthetic appearance of the weld.
S303, preheating the workpiece to be welded by using a vacuum electron beam gun to obtain the preheated workpiece to be welded.
It should be noted that, in order to improve the welding effect and prolong the service life of the welding structure, in the embodiment of the application, the workpiece to be welded needs to be preheated by utilizing the vacuum electron beam emitted by the vacuum electron beam gun.
The method comprises the steps of firstly setting preheating parameters, setting parameters such as working voltage, power, heating time and the like of a vacuum electron beam gun according to the material type and welding requirements of a workpiece to be welded, secondly establishing a vacuum environment, starting a vacuum pump in a welding machine to gradually reduce the pressure in the welding machine to reach the required vacuum degree so as to prevent oxidation and other reactions, and then starting preheating, namely starting the electron beam gun and heating according to the set parameters. The electron beam is focused on the piece to be welded, so that the rapid and efficient preheating is realized. And then monitoring the temperature, namely monitoring the temperature of the workpiece to be welded in real time by using an infrared thermometer or a thermal imager to ensure that the workpiece to be welded reaches the preset preheating temperature. And then keeping a preheating state, namely adjusting the power and the focus of the electron beam according to the requirement in the preheating process, keeping the preheating piece at the ideal temperature for a period of time to achieve the preheating effect, closing the electron beam gun after the preheating is finished, gradually recovering the indoor pressure, avoiding the thermal stress caused by the sudden temperature drop, and finally checking the temperature distribution and the surface state of the piece to be welded to ensure the uniform preheating.
Optionally, the preheating range is within 10mm of the center of the welding line and two sides of the welding line, the preheating method is to utilize a vacuum electron beam gun to emit a low-current lower beam, control a motor handle, firstly preheat the welding line, and then preheat two sides of the welding line, so that the workpiece to be welded can be preheated, and the workpiece to be welded can be preheated.
S304, welding the front surface of the welding seam of the preheated part to be welded at a welding position on the target storage tank by utilizing a vacuum electron beam gun.
After the workpiece to be welded is preheated, the workpiece to be welded needs to be welded at the welding position of the target storage tank by using a vacuum electron beam gun.
Specifically, before the actual welding, the welding parameters of the vacuum electron beam gun, namely, the welding voltage of 70-90KV, the welding current of 3.2-8.5mA, the welding speed of 1500mm/min, the opposite seam beam current of 0.2mA and the focusing beam current of 425mA, are required to be adjusted, after the welding parameters of the vacuum electron beam gun are adjusted, the electron beam gun can be started, the focusing electron beam is positioned at the welding position on the target storage tank, and the welding operation is carried out on the front surface of the welding seam of the preheated workpiece to be welded. And the moving speed in the welding process is ensured to be uniform, overheating is avoided, then the welding temperature and the formation of a welding line are monitored in real time, the welding quality is ensured to reach the expected standard, then the electron beam gun is stopped after the welding is finished, the indoor pressure is gradually recovered, the thermal stress caused by the sudden temperature drop is prevented, finally, the welding joint is inspected, the welding line is ensured to be uniform and firm, and the necessary nondestructive inspection is carried out to evaluate the welding quality.
And S305, when the cooling time of the target storage tank is detected to meet the preset time, utilizing a vacuum electron beam gun to emit vacuum electron beam current to perform heat treatment on the heat treatment area of the target storage tank.
It should be noted that, after welding, the target storage tank needs to be cooled in the welding chamber for 20-40 mnin, and the workpiece is not taken out of the welding chamber after welding, so that the stability of the welding structure is avoided from being influenced by external environment, the strength and the integrity after welding are ensured, and the welding seam can be prevented from being polluted by dust, impurities and the like in the cooling process, so that the welding quality is maintained.
It should be noted that after welding is finished, thermal stress often occurs, so that quality of the storage tank is affected, so that when it is detected that the cooling time of the target storage tank meets the preset time, in order to remove the thermal stress of the target storage tank, a vacuum electron beam gun is used to emit vacuum electron beam to perform defocusing electron beam to heat a local area including a welding seam, that is, an area where a piece to be welded is welded at the target storage tank is subjected to heat treatment, so as to locally eliminate residual stress, improve overall performance strength of the storage tank, and at the moment, ensure that preparation of the target storage tank is finished.
The specific heat treatment steps are that the room temperature is taken as the initial temperature, the vacuum electron beam gun is used for emitting vacuum electron beam to heat the heat treatment area to 600-620 ℃ at the heating rate of 2-25s, the heat is preserved for 20min, and finally the vacuum electron beam gun is closed, so that the target storage tank is cooled to the room temperature at the natural temperature losing speed in the vacuum bin, and the preparation of the target storage tank is completed.
The application provides a heat treatment method, which comprises the steps of determining a welding position of a piece to be welded on a storage tank, preprocessing the welding position to obtain a target storage tank, preheating the piece to be welded by using a vacuum electron beam gun to obtain a preheated piece to be welded, welding the front surface of a welding seam of the preheated piece to be welded on the welding position on the target storage tank by using the vacuum electron beam gun, and finally, when the cooling time of the target storage tank is detected to meet the preset time, transmitting vacuum electron beam current by using the vacuum electron beam gun to heat treat a heat treatment area of the target storage tank. Therefore, after welding by the vacuum electron beam gun, the heat treatment area of the target storage tank is subjected to local heat treatment synchronously, so that the problem that the storage tank with the management device cannot be subjected to annealing treatment is effectively solved, the quality problem of the storage tank is effectively improved, and the cost problem of replacing the storage tank is also reduced.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
It is noted that the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
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| CN202411501559.2A CN119351717A (en) | 2024-10-25 | 2024-10-25 | A heat treatment system and method |
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