Efficient cooling device for vacuum sintering furnace

Abstract

The efficient cooling device for the vacuum sintering furnace comprises a whole vacuum sintering furnace, a first installation plate and a second installation plate are fixedly installed at one end of the whole vacuum sintering furnace, and cold circulation assemblies are fixedly installed on the upper surface of the first installation plate and the upper surface of the second installation plate. Heat conduction pieces are fixedly installed on the two sides of the furnace cavity wall in the whole vacuum sintering furnace, the heat conduction pieces penetrate out of the two sides of the enclosure frame, the enclosure frame is fixedly installed in the whole vacuum sintering furnace and arranged on the outer surface of the furnace cavity wall in a sleeving mode, and a partition plate is fixedly installed on the upper surface of the enclosure frame and partitions the upper end of the flow guide groove. The left side of the upper surface of the partition plate communicates with an air inlet pipe, and the right side of the upper surface of the partition plate communicates with an air outlet pipe. According to the utility model, the cooling efficiency of the temperature in the hearth is improved through the cold circulation assembly, and deformation and damage of materials caused by sudden temperature drop are avoided, so that the cooling manufacturing efficiency of the materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum sintering furnace equipment, in particular to a high-efficiency cooling device for a vacuum sintering furnace. Background Art

[0002] The vacuum sintering equipment uses the principle of medium frequency induction heating to generate high temperature in the tungsten crucible in the coil after vacuuming and filling with protective gas. It operates through heat radiation conduction. It is suitable for scientific research and military units to form and sinter powders of refractory alloys such as tungsten, molybdenum and their alloys.

[0003] The patent with announcement number CN202675870U discloses a vacuum sintering furnace. A heating element is arranged in the furnace body. An insulation layer is arranged between the heating element and the furnace body. A vent is arranged on the furnace body and is connected to a vacuum pump. A hydraulic cylinder for controlling the opening or closing of the vent is also arranged on the furnace body. The vacuum sintering furnace has high safety performance and is durable.

[0004] However, after the vacuum sintering furnace sintered the material, it was necessary to wait for the furnace to cool naturally, so that the material gradually cooled to room temperature before the material could be taken out of the furnace. Therefore, the vacuum sintering furnace did not have the function of accelerating the cooling efficiency of the furnace after sintering, thereby reducing production efficiency. Utility Model Content

[0005] The utility model aims to provide a high-efficiency cooling device for a vacuum sintering furnace to solve the problem proposed in the above-mentioned background technology that it does not have the function of accelerating the cooling efficiency of the furnace after sintering, and it is necessary to wait for the furnace to cool naturally and allow the material to gradually cool to room temperature before the material can be taken out therefrom, thereby reducing the problem of material production efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-efficiency cooling device for a vacuum sintering furnace comprises a vacuum sintering furnace as a whole, a first mounting plate and a second mounting plate are fixedly mounted on one end of the vacuum sintering furnace as a whole, a cold circulation assembly is fixedly mounted on the upper surfaces of the first mounting plate and the second mounting plate, heat conducting sheets are fixedly mounted on both sides of a furnace cavity wall in the vacuum sintering furnace as a whole, the heat conducting sheets penetrate from both sides of a surrounding frame, the surrounding frame is fixedly mounted in the vacuum sintering furnace as a whole, and is sleeved on the outer surface of the furnace cavity wall;

[0008] A partition plate is fixedly installed on the upper surface of the enclosure frame, which divides the upper end of the guide groove. An air inlet pipe is connected to the left side of the upper surface of the partition plate, and an air outlet pipe is connected to the right side of the upper surface of the partition plate. Both the air inlet pipe and the air outlet pipe are connected to the guide groove, and both the air inlet pipe and the air outlet pipe are connected to the cold circulation component.

[0009] As a further solution of the utility model, the distance between the surrounding frame and the outer shell of the vacuum sintering furnace as a whole forms a guide groove.

[0010] As a further preferred solution of the utility model, the heat conducting sheets extending from both sides of the surrounding frame are located in the guide groove.

[0011] As a preferred embodiment of the utility model, the cold circulation component includes an air pump, which is fixedly mounted on the upper surface of the second mounting plate. The air outlet of the air pump is connected to the air inlet pipe. One end of the air inlet of the air pump is connected to a heat dissipation pipe, and the other end of the heat dissipation pipe is connected to the air outlet pipe.

[0012] As a further preferred solution of the utility model, a heat sink is mounted on the outer surface of the heat dissipation pipe, and the heat sink is fixedly mounted on the upper surface of the first mounting plate.

[0013] As a further preferred solution of the utility model, a U-shaped frame is fixedly mounted on the upper surface of the first mounting plate, a motor is fixedly mounted on one end of the U-shaped frame, a fan blade is fixedly mounted on one end of the output shaft of the motor, and the fan blade is opposite to the heat sink.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When in use, place the material into the furnace of the vacuum sintering furnace, evacuate the furnace to form a low-pressure environment to reduce the production of oxygen and other gases that may cause oxidation. Use heating elements (such as resistance wire, induction coil, microwave generator, etc.) to heat the material in the furnace in a vacuum environment. The control system accurately adjusts the temperature and pressure in the furnace to ensure that the material completes the sintering process under the best conditions. After the sintering time is reached, the cold cycle component can be started. The cold cycle component will transport the cooled gas from the air inlet pipe into the guide groove, and the gas entering the guide groove will take away the heat from the outer wall of the furnace cavity, and make the hot gas flow along the guide groove and be discharged from the outlet pipe into the cold cycle component for cooling. The cooled gas will be transported into the guide groove through the air inlet pipe again to drive the heat from the outer wall of the furnace cavity, so that the material in the furnace has the effect of natural heat dissipation and cooling, and can avoid deformation and damage of the material due to sudden temperature drop.

[0016] 2. The heat conducting plate in the utility model conducts the heat in the furnace to the guide groove, and the airflow blown in by the cooling circulation component takes it away, which can speed up the temperature cooling efficiency in the furnace and thus improve the processing efficiency of the material.

[0017] The heat from the heat pipe is then blown away by the fan blades driven by the motor, thereby achieving the effect of cooling the hot air in the heat pipe. The cooled gas will be sucked in by the air pump through the air inlet again and discharged from the air outlet to the air inlet pipe, so that it can exchange heat again, thereby achieving the purpose of cooling the furnace. Compared with natural cooling, the cooling efficiency of the heat pipe by this device is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the first mounting plate and the second mounting plate in an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the guide groove in the embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the partition plate in the embodiment of the utility model;

[0023] Figure 5 This is a structural schematic diagram of the flow direction of the airflow in the guide groove in the embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the cold cycle component in the embodiment of the utility model.

[0025] Figure numerals: 1. Vacuum sintering furnace as a whole; 101. First mounting plate; 102. Second mounting plate; 103. Air inlet pipe; 104. Air outlet pipe; 105. Furnace cavity wall; 106. Surrounding frame; 107. Guide groove; 108. Heat conducting plate; 109. Partition plate; 2. Cold circulation component; 201. Air pump; 202. Air inlet; 203. Air outlet; 204. Heat dissipation pipe; 205. Heat sink; 206. C-shaped frame; 207. Motor; 208. Fan blade. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0029] See also Figure 1-Figure 5 As shown, an embodiment of the utility model is a high-efficiency cooling device for a vacuum sintering furnace, including a vacuum sintering furnace as a whole 1, a first mounting plate 101 and a second mounting plate 102 are fixedly installed at one end of the vacuum sintering furnace as a whole 1, a cold circulation component 2 is fixedly installed on the upper surfaces of the first mounting plate 101 and the second mounting plate 102, heat conducting plates 108 are fixedly installed on both sides of a furnace cavity wall 105 in the vacuum sintering furnace as a whole 1, the heat conducting plates 108 pass through both sides of a surrounding frame 106, and the surrounding frame 106 is fixedly installed in the vacuum sintering furnace as a whole 1, and is sleeved on the outer surface of the furnace cavity wall 105.

[0030] A partition plate 109 is fixedly installed on the upper surface of the enclosure frame 106, and the partition plate 109 divides the upper end of the guide groove 107. The upper surface of the partition plate 109 is connected to an air inlet pipe 103 on the left side, and the upper surface of the partition plate 109 is connected to an air outlet pipe 104 on the right side. The air inlet pipe 103 and the air outlet pipe 104 are both connected to the guide groove 107, and the air inlet pipe 103 and the air outlet pipe 104 are both connected to the cold circulation component 2.

[0031] The distance between the surrounding frame 106 and the outer shell of the vacuum sintering furnace 1 forms a guide groove 107 .

[0032] The heat conducting sheets 108 extending from both sides of the surrounding frame 106 are located in the guide groove 107 .

[0033] When the embodiment of the utility model is used, the material is placed in the furnace of the vacuum sintering furnace 1, and the furnace is evacuated to form a low-pressure environment to reduce the generation of oxygen and other gases that may cause oxidation. Then, the material in the furnace can be heated in the vacuum environment using heating elements such as resistance wires, induction coils, microwave generators, etc. The temperature and pressure in the furnace can be accurately adjusted by the control system to ensure that the material completes the sintering process under the best conditions. When the sintering time is reached, the cold cycle component 2 can be started, and the cold cycle component 2 will heat the material that has been cooled. The cooled gas is transported into the guide groove 107 from the air inlet pipe 103, and the gas entering the guide groove 107 will take away the heat from the outer periphery of the furnace cavity wall 105, and make the hot gas flow along the guide groove 107 and be discharged from the air outlet pipe 104 into the cold circulation component 2 for cooling. The cooled gas will be transported into the guide groove 107 through the air inlet pipe 103 again to drive the heat from the outer periphery of the furnace cavity wall 105, so that the materials in the furnace can have the effect of natural heat dissipation and cooling, and can avoid deformation and damage of the materials due to sudden temperature drop.

[0034] A heat conducting plate 108 is fixedly installed on the furnace cavity wall 105 on the outer surface of the furnace, and the heat conducting plate 108 is located in the guide groove 107. The heat conducting plate 108 can conduct the heat in the furnace to the guide groove 107, and the airflow blown in by the cooling circulation component 2 can carry it away, which can speed up the temperature cooling efficiency in the furnace and further improve the production efficiency of the material.

[0035] like Figure 6 As shown, the cold cycle component 2 includes an air pump 201, which is fixedly mounted on the upper surface of the second mounting plate 102, and the air outlet 203 of the air pump 201 is connected to the air inlet pipe 103, one end of the air inlet 202 of the air pump 201 is connected to the heat dissipation pipe 204, and the other end of the heat dissipation pipe 204 is connected to the air outlet pipe 104.

[0036] The outer surface of the heat dissipation pipe 204 is sheathed with a heat dissipation fin 205 , and the heat dissipation fin 205 is fixedly mounted on the upper surface of the first mounting plate 101 .

[0037] A U-shaped frame 206 is fixedly mounted on the upper surface of the first mounting plate 101 , a motor 207 is fixedly mounted on one end of the U-shaped frame 206 , a fan blade 208 is fixedly mounted on one end of the output shaft of the motor 207 , and the fan blade 208 is opposite to the heat sink 205 .

[0038] When the heat in the guide groove 107 is taken away and the efficiency of cooling in the furnace is accelerated, the air pump 201 can be started to supply the cooled airflow in the heat dissipation pipe 204 into the air inlet pipe 103, and the airflow can enter the guide groove 107 through the air inlet pipe 103, and the airflow entering the guide groove 107 will take away the heat in the guide groove 107 and be pushed into the air outlet pipe 104 by the continuously blown gas, and the heat entering the air outlet pipe 104 will enter the heat dissipation pipe 204, and the heat dissipation pipe 204 will be heated by the hot air and pass through the heat dissipation fins 205 on the outer surface. Heat dissipation, when entering, can take away the heat on the surface of the heat dissipation pipe 204, and the heat sink 205 that cools the heat of the heat dissipation pipe 204 will be blown away by the fan blades 208 driven by the motor 207, thereby achieving the effect of cooling the hot air in the heat dissipation pipe 204, and the cooled gas will be sucked in again by the air pump 201 through the air inlet 202 and discharged from the air outlet 203 to the air inlet pipe 103, so that it can perform heat exchange again, thereby achieving the purpose of cooling the furnace. Compared with natural cooling, this device has a faster cooling efficiency on the furnace.

[0039] In summary, the embodiments of the utility model can accelerate the temperature cooling efficiency in the furnace, and will not affect the deformation and damage of the material caused by the sudden drop in temperature, thereby improving the cooling efficiency of the material.

[0040] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency cooling device for a vacuum sintering furnace, characterized in that: The vacuum sintering furnace comprises a vacuum sintering furnace as a whole (1), wherein a first mounting plate (101) and a second mounting plate (102) are fixedly mounted at one end of the vacuum sintering furnace as a whole (1), a cold circulation assembly (2) is fixedly mounted on the upper surfaces of the first mounting plate (101) and the second mounting plate (102), heat conducting plates (108) are fixedly mounted on both sides of a furnace cavity wall (105) in the vacuum sintering furnace as a whole (1), the heat conducting plates (108) penetrate through both sides of a surrounding frame (106), and the surrounding frame (106) is fixedly mounted in the vacuum sintering furnace as a whole (1) and is sleeved on the outer surface of the furnace cavity wall (105); A partition plate (109) is fixedly installed on the upper surface of the enclosure frame (106), and the partition plate (109) divides the upper end of the guide groove (107). The left side of the upper surface of the partition plate (109) is connected to an air inlet pipe (103), and the right side of the upper surface of the partition plate (109) is connected to an air outlet pipe (104). Both the air inlet pipe (103) and the air outlet pipe (104) are connected to the guide groove (107), and both the air inlet pipe (103) and the air outlet pipe (104) are connected to the cold circulation component (2).

2. The high-efficiency cooling device for a vacuum sintering furnace according to claim 1, characterized in that: The distance between the surrounding frame (106) and the outer shell of the vacuum sintering furnace as a whole (1) forms a guide groove (107).

3. The high-efficiency cooling device for a vacuum sintering furnace according to claim 2, characterized in that: The heat conducting sheets (108) extending through both sides of the surrounding frame (106) are located in the guide groove (107).

4. The high-efficiency cooling device for a vacuum sintering furnace according to claim 1, characterized in that: The cold cycle component (2) comprises an air pump (201), the air pump (201) is fixedly mounted on the upper surface of the second mounting plate (102), the air outlet (203) of the air pump (201) is connected to the air inlet pipe (103), one end of the air inlet (202) of the air pump (201) is connected to a heat dissipation pipe (204), and the other end of the heat dissipation pipe (204) is connected to the air outlet pipe (104).

5. The high-efficiency cooling device for a vacuum sintering furnace according to claim 4, characterized in that: The outer surface of the heat dissipation pipe (204) is sheathed with a heat dissipation fin (205), and the heat dissipation fin (205) is fixedly mounted on the upper surface of the first mounting plate (101).

6. The high-efficiency cooling device for a vacuum sintering furnace according to claim 5, characterized in that: A U-shaped frame (206) is fixedly mounted on the upper surface of the first mounting plate (101), a motor (207) is fixedly mounted on one end of the U-shaped frame (206), a fan blade (208) is fixedly mounted on one end of the output shaft of the motor (207), and the fan blade (208) is opposite to the heat sink (205).

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