Vacuum welding furnace
By using a plasma cleaning device in a vacuum welding furnace, the problems of contaminant removal and insufficient material surface energy were solved, improving the wettability of welding materials and weld strength, and achieving efficient and reliable welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-10
AI Technical Summary
Existing vacuum welding equipment cannot efficiently remove contaminants, has insufficient material surface energy, poor wettability of welding materials, and low weld density and strength.
The first and second electrodes of the plasma cleaning device are used to efficiently remove contaminants in a vacuum furnace, which significantly improves the surface energy of the material, enhances the wettability of the welding material, and improves the density and strength of the weld.
It achieves efficient removal of pollutants, significantly improves the surface energy of materials, enhances the wettability of welding materials and the density and strength of welds, completes the welding process in one stop, shortens process time, and improves equipment utilization.
Smart Images
Figure CN224102122U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding furnace technical field especially relates to a vacuum welding furnace. BACKGROUND
[0002] The prior art vacuum welding equipment is a professional equipment used for workpiece welding, which mainly comprises a controller, a sealable cavity, a vacuumizing device, a heating device, a heating platform and a cooling device. The heating platform is located in the sealable cavity, and the workpiece is placed on the heating platform. The heating device and the cooling device are respectively below the heating platform and are connected with the controller. Under the control of the controller, the heating platform is heated or cooled. The vacuumizing device is arranged outside the sealable cavity, and performs vacuumizing treatment on the sealable cavity to ensure that the welding process is carried out in an oxygen-free state, to ensure the welding quality, reduce the internal porosity of the welding, and improve the reliability of the welded workpiece.
[0003] The prior art cannot efficiently remove pollutants, cannot significantly improve the surface energy of the material, and the wettability of the welding material is poor, and the compactness and strength of the weld are low. SUMMARY
[0004] The utility model provides a vacuum welding furnace to solve prior art cannot efficiently remove pollutants, cannot significantly improve the surface energy of the material, and the wettability of the welding material is poor, and the compactness and strength of the weld are low problem.
[0005] A vacuum welding furnace comprises an upper cavity, a lower cavity, at least one cooling pipe, at least one lower heating pipe, a heating platform, a vacuum electrode, a first electrode plate and a second electrode plate. The upper cavity is arranged above the lower cavity, and the upper cavity and the lower cavity form a vacuum cavity. The lower heating pipe and the cooling pipe are arranged inside the lower cavity. The cooling pipe is embedded below the heating platform. The side of the upper cavity is provided with the first electrode plate, and the opposite side of the upper cavity is provided with the second electrode plate. The vacuum electrode is arranged on the top of the upper cavity, and the vacuum electrode is connected with the first electrode plate or the second electrode plate.
[0006] According to the vacuum welding furnace, the upper cavity further comprises an upper cavity frame, an observation window and at least one upper heating pipe. The observation window is arranged in the middle of the upper cavity frame, and the upper heating pipe is arranged inside the upper cavity frame.
[0007] According to the vacuum welding furnace, the cooling pipe is arranged above the lower heating pipe.
[0008] According to the vacuum welding furnace of this utility model, the lower cavity includes a lower cavity frame, a gas pipe, and a cooling pipe support column; the heating platform is arranged inside the lower cavity frame, the cooling pipe support column supports the cooling pipe, and the gas pipe is arranged on both sides above the heating platform.
[0009] The vacuum welding furnace according to this utility model further includes a molecular pump and a high-seal gate valve. The high-seal gate valve is disposed below the lower cavity, and the molecular pump is disposed below the high-seal gate valve.
[0010] According to the vacuum welding furnace of this utility model, a water-cooling pipeline is provided inside the bottom of the lower cavity frame.
[0011] The vacuum welding furnace according to this utility model also includes a temperature sensor bracket, which is disposed above the heating platform.
[0012] According to the present invention, a vacuum welding furnace is provided at the bottom of the lower cavity for vacuuming.
[0013] The vacuum welding furnace according to this utility model also includes an inner liner, which is disposed inside the lower cavity.
[0014] The plasma cleaning device of this invention features first and second electrodes positioned inside a vacuum furnace, enabling efficient removal of contaminants, significantly increasing the surface energy of materials, improving the wettability of welding materials, and enhancing the density and strength of welds. It achieves one-stop cleaning and welding, eliminating intermediate steps, shortening the overall process time, and improving equipment utilization. It is particularly suitable for high-precision, high-reliability welding scenarios. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural schematic diagram of a vacuum welding furnace;
[0017] Figure 2 This is a cross-sectional view and structural schematic diagram of a vacuum welding furnace;
[0018] Figure 3 This is a three-dimensional structural diagram of the lower cavity;
[0019] Figure 4 A three-dimensional structural diagram of the upper cavity. Figure 1 ;
[0020] Figure 5 isometric view of the upper cavity Figure 2 ;
[0021] Figure 6 isometric view of the upper cavity
[0022] Fig. 1 is an upper cavity; Fig. 2 is a lower cavity; Fig. 11 is an upper cavity frame; Fig. 12 is an upper heating tube; Fig. 13 is an observation window; Fig. 14 is a first electrode plate; Fig. 15 is a second electrode plate; Fig. 16 is a vacuum electrode; Fig. 21 is a lower cavity frame; Fig. 22 is a gas tube; Fig. 23 is a heating support; Fig. 24 is a vacuum port; Fig. 25 is a lower heating tube; Fig. 26 is a cooling tube support column; Fig. 27 is a temperature sensor support; Fig. 28 is an inner container. DETAILED DESCRIPTION
[0023] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0024] In the description of the embodiments of the present application, it should be explained that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0025] In the description of the embodiments of the present application, it should be explained that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0026] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature can be "under", "below" and "underneath" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0027] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or at least one embodiment or example. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0028] The following will be described in detail Figures 1-6 A vacuum welding furnace is described in the embodiments of the present application, which comprises an upper cavity 1, a lower cavity 2, at least one cooling pipe, at least one lower heating pipe 25, a heating platform 23, a vacuum electrode 16, a first electrode plate 14 and a second electrode plate 15. The upper cavity 1 is arranged above the lower cavity 2, and the upper cavity 1 and the lower cavity 2 form a vacuum cavity. The lower heating pipe 25 and the cooling pipe are arranged inside the lower cavity 2, and the cooling pipe is embedded below the heating platform 23. The side of the upper cavity 1 is provided with the first electrode plate 14, and the opposite side of the upper cavity 1 is provided with the second electrode plate 15. The vacuum electrode 16 is arranged at the top of the upper cavity 1, and the vacuum electrode 16 is connected to the first electrode plate 14 or the second electrode plate 15.
[0029] In some embodiments, the upper cavity 1 further comprises an upper cavity frame 11, an observation window 13 and at least one upper heating pipe 12. The observation window 13 is arranged in the middle of the upper cavity frame 11, and the upper heating pipe 12 is arranged inside the upper cavity frame 11.
[0030] In some embodiments, the cooling pipe is arranged above the lower heating pipe 25.
[0031] In some embodiments, the lower cavity 2 comprises a lower cavity frame 21, a gas pipe 22 and a protective plate; a heating stage 23 is arranged inside the lower cavity frame 21, the heating stage 23 is provided with protective plates on both sides, and the gas pipe 22 is arranged on both sides above the heating stage 23. The gas pipe 22 is preferably a nitrogen pipe 22.
[0032] In some embodiments, a molecular pump and a high-sealing plug-in valve are further included, the high-sealing plug-in valve is arranged below the lower cavity 2, and the molecular pump is arranged below the high-sealing plug-in valve.
[0033] In some embodiments, a water cooling pipe is arranged inside the bottom of the lower cavity frame 21.
[0034] In some embodiments, a temperature measuring sensor support 27 is further included, and the temperature measuring sensor support 27 is arranged above the heating stage 23.
[0035] In some embodiments, an inner container 28 is further included, and the inner container 28 is arranged inside the lower cavity 2. The inner container 28 is made of polished stainless steel.
[0036] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A vacuum brazing furnace, characterized in that, The vacuum chamber comprises an upper cavity, a lower cavity, at least one cooling pipe, at least one lower heating pipe, a heating platform, a vacuum electrode, a first electrode plate and a second electrode plate; the upper cavity is arranged above the lower cavity, the upper cavity and the lower cavity form a vacuum cavity, the lower heating pipe and the cooling pipe are arranged inside the lower cavity, the cooling pipe is embedded below the heating platform, the side of the upper cavity is provided with the first electrode plate, the opposite side of the upper cavity is provided with the second electrode plate, the vacuum electrode is arranged at the top of the upper cavity, and the vacuum electrode is connected with the first electrode plate or the second electrode plate.
2. The vacuum brazing furnace of claim 1, wherein The upper cavity further comprises an upper cavity frame, an observation window and at least one upper heating pipe; the observation window is arranged in the middle of the upper cavity frame, and the upper heating pipe is arranged inside the upper cavity frame.
3. The vacuum brazing furnace of claim 1, wherein, The cooling pipe is arranged above the lower heating pipe.
4. The vacuum brazing furnace of claim 1, wherein, The lower cavity comprises a lower cavity frame, a gas pipe and a cooling pipe support column; the heating platform is arranged inside the lower cavity frame, the cooling pipe support column supports the cooling pipe, and the gas pipe is arranged on both sides above the heating platform.
5. The vacuum brazing furnace of claim 4, wherein, Further comprising a molecular pump and a high-sealing plug-in valve; the high-sealing plug-in valve is arranged below the lower cavity, and the molecular pump is arranged below the high-sealing plug-in valve.
6. The vacuum brazing furnace of claim 4, wherein, A water cooling pipe is arranged inside the bottom of the lower cavity frame.
7. The vacuum brazing furnace of claim 1, wherein Further comprising a temperature sensor support; the temperature sensor support is arranged above the heating platform.
8. The vacuum brazing furnace of claim 4, wherein, A vacuum interface is arranged at the bottom of the lower cavity.
9. The vacuum brazing furnace of claim 4, wherein, Further comprising an inner container; the inner container is arranged inside the lower cavity.