High-temperature sintering furnace

Abstract

The utility model relates to the technical field of advanced manufacturing and automation, and discloses a high-temperature sintering furnace which comprises a vacuum system, a furnace shell is arranged on one side of the vacuum system, a heating chamber is arranged in the furnace shell, an air cooling heat exchange system is arranged on one side of the furnace shell, an electrode wiring device is arranged on one side of the furnace shell, and the electrode wiring device is arranged on the other side of the furnace shell. An electrode wiring device is arranged on one side of the furnace shell, a water cooling system is arranged on one side of the electrode wiring device, a uniform temperature zone thermocouple is arranged on the outer wall of the furnace shell, a furnace body welding part is arranged on one side of the furnace shell, and a furnace door assembly is installed on one side of the furnace body welding part. Materials needing to be sintered are placed in the furnace shell to wait for sintering, the temperature accuracy can be guaranteed by arranging the nine-point temperature measurement interface control panel, meanwhile, the rotary vane type vacuum pump in the vacuum system guarantees that the interior of the furnace body is in a vacuum state, and the effect of improving the material sintering quality is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of advanced manufacturing and automation, in particular to a high-temperature sintering furnace. Background Art

[0002] A sintering furnace is a specialized piece of equipment that achieves the desired physical, mechanical properties, and microstructure through sintering of powder compacts. It is primarily used for sintering ceramic powders, ceramic ferrules, other zirconia ceramics, and diamond saw blades. It can also be used for heat treatments such as copper and steel strip annealing, finding widespread application in the steel, metallurgy, and electronics industries. A powder compact, also known as a green compact, is an unsintered blank obtained by pressing powder. The shape, size, and performance requirements of the green compact must be met. The shape and size of the compact must ensure that the final product meets the specifications of the final drawing. Properties include density and strength. A qualified compact must also be free of defects such as delamination and cracks. Defects in the compact can significantly reduce the performance of the finished product and even render it scrapped. Common examples of scrapped compacts include delamination, cracks, chipping, scratches, and misalignment. Delamination and cracks are the most serious defects. The causes of these defects vary. Cracks, chipping, and scratches are often caused by vibration and mechanical damage during the sintering process.

[0003] The high-temperature sintering furnace in current technology has a simple structure and only realizes the process of material sintering, resulting in low material sintering quality and efficiency. At the same time, due to the influence of factors such as equipment structure and material, when the sintering raw materials require a higher or constant sintering temperature, the existing high-temperature sintering furnace cannot meet the temperature adjustment requirements, thereby affecting the sintering quality of the raw materials and being inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a high-temperature sintering furnace, which is easy to use and improves the sintering quality.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-temperature sintering furnace, comprising a vacuum system, wherein a furnace shell is provided on one side of the vacuum system, a heating chamber is provided inside the furnace shell, an air-cooled heat exchange system is provided on one side of the furnace shell, a pneumatic system is provided on the other side of the vacuum system, a thermocouple assembly is provided on the outer wall of the furnace shell, an electrode assembly is provided on the outer wall of the furnace shell, a charging and discharging system is provided above the vacuum system, an electrode wiring device is provided on one side of the furnace shell, a water cooling system is provided on one side of the electrode wiring device, a uniform temperature zone thermocouple is provided on the outer wall of the furnace shell, a furnace body welding part is provided on one side of the furnace shell, and a furnace door assembly is installed on one side of the furnace body welding part.

[0006] Preferably, the vacuum system includes: a vacuum baffle valve 1, which is arranged on one side of the vacuum furnace; an electric contact pressure gauge, which is arranged on the top of the vacuum furnace; a connecting pipe 1, which is connected to the outer wall of the vacuum furnace; a gauge assembly is provided on one side of the electric contact pressure gauge, and the gauge assembly is fixedly installed on the top of the vacuum furnace, one end of the connecting pipe 1 is connected to the connecting furnace, and a vacuum baffle valve 2 is provided on the top of the connecting furnace, and a connecting pipe 2 is provided below the vacuum baffle valve 2, and the connecting pipe 2 is connected to the bottom of the connecting furnace.

[0007] Preferably, a bellows pipe 1 is provided on one side of the second connecting pipe, one end of the bellows pipe 1 is connected to a third connecting pipe, an electromagnetic high vacuum air valve is provided on the outer wall of the third connecting pipe, and one end of the third connecting pipe is connected to a rotary vane vacuum pump, which is located below the electromagnetic high vacuum air valve.

[0008] Preferably, the other end of the vacuum baffle valve one is connected to a connecting pipe four, one end of the connecting pipe four is connected to a Roots vacuum pump, a pump stand is provided below the Roots vacuum pump, the outer wall of the connecting pipe two is connected to a bellows pipe two, a vacuum baffle valve three is provided below the bellows pipe two, a diffusion pump is provided on one side of the bellows pipe two, and the diffusion pump is located below the electric contact pressure gauge.

[0009] Preferably, the furnace body assembly welds include: a flange, which is arranged on the outer wall of the furnace shell; a lifting ring, which is arranged on the outer wall of the furnace shell; an explosion-proof valve interface, which is sleeved on the outer wall of the pipe; an inner tube, which is installed inside the furnace shell; an electrode interface, which is arranged on the outer wall of the furnace shell; a nine-point temperature measurement interface, which is arranged on the outer wall of the furnace shell; a furnace leg, which is fixedly installed on the bottom of the furnace shell; a lifting ring reinforcement plate, which is fixedly installed on the top of the furnace shell; the outer wall of the inner tube is sleeved with an outer tube, the inner wall of the outer tube is arranged on the inner head, the outer wall of the outer tube is provided with an outer head, one end of the outer tube is provided with a rear flange, and a heat exchanger interface is installed below the rear flange.

[0010] Preferably, a thermocouple interface is provided on one side of the electrode interface, a pressure gauge interface is provided on the other side of the electrode interface, and a furnace leg reinforcement plate is fixedly installed on the bottom of the furnace leg.

[0011] Preferably, an inflation interface is provided on one side of the nine-point temperature measurement interface, a vacuum interface is provided on one side of the pressure gauge interface, a deflation interface is provided on one side of the vacuum interface, and the deflation interface is located at the top of the furnace shell.

[0012] Preferably, the furnace door assembly includes: a handle, which is fixedly mounted on the outer wall of the furnace door; a clamping ring, which is arranged on the outer wall of the furnace door, and a connecting plate is arranged below the clamping ring.

[0013] The utility model provides a high-temperature sintering furnace with the following beneficial effects:

[0014] (1) The utility model sets up a vacuum system. When starting work, the staff turns on the control switch and puts the materials to be sintered into the interior of the furnace shell and waits for sintering. The temperature accuracy can be guaranteed by setting a nine-point temperature measurement interface control panel. At the same time, the rotary vane vacuum pump in the vacuum system ensures that the interior of the furnace body is in a vacuum state, thereby achieving the effect of improving the sintering quality of the materials.

[0015] (2) The utility model is responsible for providing the required heat to the furnace through the heating chamber so that the material reaches the required sintering temperature. The heat exchange system realizes precise control of the temperature in the furnace through the temperature sensor and controller, ensuring the stability of the sintering process and achieving the effect of meeting the sintering requirements of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall plan view of the utility model;

[0017] Figure 2 This is a side view of the overall structure of a high-temperature sintering furnace of the utility model;

[0018] Figure 3 This is an internal view of a high-temperature sintering furnace of the utility model;

[0019] Figure 4 This is a side view of the vacuum structure of a high-temperature sintering furnace of the utility model;

[0020] Figure 5 This is a front view of a high-temperature sintering furnace body of the utility model;

[0021] Figure 6 This is a right view of the furnace body of a high-temperature sintering furnace of the utility model;

[0022] Figure 7 This is an internal view of the connection structure of a high-temperature sintering furnace of the utility model;

[0023] Figure 8 This is a top view of a high-temperature sintering furnace body of the utility model;

[0024] Figure 9 This is a top view of the round cover structure of a high-temperature sintering furnace according to the present invention.

[0025] In the figure: 1 vacuum system, 2 furnace shell, 3 heating chamber, 4 air cooling heat exchange system, 5 pneumatic system, 6 thermocouple assembly, 7 electrode assembly, 8 charging and discharging system, 9 electrode wiring device, 10 water cooling system, 11 uniform temperature zone thermocouple, 111 vacuum baffle valve 1, 112 electric contact pressure gauge, 113 gauge assembly, 114 pipe 1, 115 vacuum baffle valve 2, 116 pipe 2, 117 bellows 1, 118 pipe 3, 119 electromagnetic high vacuum belt valve, 1110 rotary vane vacuum pump, 1111 pipe 4, 1112 Roots vacuum pump, 1113 pump stand, 1114 bellows 2, 1115 vacuum baffle valve 3, 1116 expansion pipe Bulk pump, 1117 thread pair, 1118 wafer butterfly valve, 21 furnace body assembly weldment, 211 flange, 212 lifting ring, 213 explosion-proof valve interface, 214 inner tube, 215 outer tube, 216 inner head, 217 outer head, 218 rear flange, 219 heat exchanger interface, 2110 electrode interface, 2111 thermocouple interface, 2112 pressure gauge interface, 2113 nine-point temperature measurement interface, 2114 furnace leg, 2115 furnace leg reinforcement plate, 2116 water nozzle, 2117 charging interface, 2118 vacuum interface, 2119 lifting ring reinforcement plate, 2120 venting interface, 22 furnace door assembly, 221 handle, 222 clamping ring, 223 connecting plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] Example 1

[0029] A preferred embodiment of a high temperature sintering furnace provided by the present utility model is as follows: Figure 1-9As shown: A high-temperature sintering furnace includes a vacuum system 1, wherein a furnace shell 2 is provided on one side of the vacuum system 1, a heating chamber 3 is provided inside the furnace shell 2, an air-cooling heat exchange system 4 is provided on one side of the furnace shell 2, a pneumatic system 5 is provided on the other side of the vacuum system 1, a thermocouple assembly 6 is provided on the outer wall of the furnace shell 2, an electrode assembly 7 is provided on the outer wall of the furnace shell 2, a charging and discharging system 8 is provided above the vacuum system 1, an electrode wiring device 9 is provided on one side of the furnace shell 2, a water cooling system 10 is provided on one side of the electrode wiring device 9, a uniform temperature zone thermocouple 11 is provided on the outer wall of the furnace shell 2, a furnace body welding part 21 is provided on one side of the furnace shell 2, and a furnace door assembly 22 is installed on one side of the furnace body welding part 21.

[0030] The vacuum system 1 includes: a vacuum baffle valve 111, which is arranged on one side of the vacuum furnace; an electric contact pressure gauge 112, which is arranged on the top of the vacuum furnace; a pipe 114, which is connected to the outer wall of the vacuum furnace; a gauge assembly 113 is provided on one side of the electric contact pressure gauge 112, and the gauge assembly 113 is fixedly installed on the top of the vacuum furnace; one end of the pipe 114 is connected to the connecting furnace, and a vacuum baffle valve 2 115 is provided on the top of the connecting furnace; a pipe 2 116 is provided below the vacuum baffle valve 115, and the pipe 2 116 is connected to the bottom of the connecting furnace.

[0031] A bellows pipe 117 is provided on one side of the second connecting pipe 116, and one end of the bellows pipe 117 is connected to a third connecting pipe 118. The outer wall of the third connecting pipe 118 is provided with an electromagnetic high vacuum air valve 119. One end of the third connecting pipe 118 is connected to a rotary vane vacuum pump 1110, which is located below the electromagnetic high vacuum air valve 119.

[0032] The other end of the vacuum baffle valve 111 is connected to the connecting pipe 4 1111, one end of the connecting pipe 4 1111 is connected to the Roots vacuum pump 1112, a pump stand 1113 is provided below the Roots vacuum pump 1112, the outer wall of the connecting pipe 2 116 is connected to the bellows 2 1114, the lower part of the bellows 2 1114 is provided with the vacuum baffle valve 3 1115, and a diffusion pump 1116 is provided on one side of the bellows 2 1114, and the diffusion pump 1116 is located below the electric contact pressure gauge 112.

[0033] Example 2

[0034] On the basis of Example 1, a preferred embodiment of a high temperature sintering furnace provided by the present invention is as follows: Figure 1-9As shown: the furnace body assembly welding part 21 includes: a flange 211, the flange 211 is arranged on the outer wall of the furnace shell 2; a lifting ring 212, the lifting ring 212 is arranged on the outer wall of the furnace shell 2; an explosion-proof valve interface 213, the explosion-proof valve interface 213 is sleeved on the outer wall of the pipe; an inner tube 214, the inner tube 214 is installed inside the furnace shell 2; an electrode interface 2110, the electrode interface 2110 is arranged on the outer wall of the furnace shell 2; a nine-point temperature measurement interface 2113, the nine-point temperature measurement interface 2113 is arranged at The outer wall of the furnace shell 2; the furnace leg 2114, the furnace leg 2114 is fixedly installed at the bottom of the furnace shell 2; the lifting ring reinforcement plate 2119, the lifting ring reinforcement plate 2119 is fixedly installed at the top of the furnace shell 2; the outer wall of the inner tube 214 is provided with an outer tube 215, the inner wall of the outer tube 215 is provided on the inner head 216, the outer wall of the outer tube 215 is provided with an outer head 217, and one end of the outer tube 215 is provided with a rear flange 218, and a heat exchanger interface 219 is installed below the rear flange 218.

[0035] A thermocouple interface 2111 is provided on one side of the electrode interface 2110 , a pressure gauge interface 2112 is provided on the other side of the electrode interface 2110 , and a furnace leg reinforcement plate 2115 is fixedly installed on the bottom of the furnace leg 2114 .

[0036] An inflation interface 2117 is provided on one side of the nine-point temperature measurement interface 2113 , a vacuum interface 2118 is provided on one side of the pressure gauge interface 2112 , and an exhaust interface 2120 is provided on one side of the vacuum interface 2118 , and the exhaust interface 2120 is located at the top of the furnace shell 2 .

[0037] The furnace door assembly 22 includes: a handle 221 fixedly mounted on the outer wall of the furnace door; a clamping ring 222 disposed on the outer wall of the furnace door, and a connecting plate 223 disposed below the clamping ring 222 .

[0038] During use, when starting work, the staff turns on the control switch, and in a high-temperature environment, by controlling the temperature gradient and atmosphere in the furnace, the material undergoes a sintering process, and the material to be sintered is placed into the interior of the furnace shell 2 and waits for sintering. By setting a nine-point temperature measurement interface 211 control panel, the temperature accuracy can be guaranteed. At the same time, the rotary vane vacuum pump 1110 in the vacuum system 1 ensures that the interior of the furnace is in a vacuum state. During the sintering process, heat is transferred to the material by conduction, radiation and convection, so that the bonds between its molecules are rearranged to achieve the sintering effect. After the processing and sintering are completed, it is cooled by the water cooling system 10 to complete the sintering work.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high temperature sintering furnace, characterized in that: It includes a vacuum system (1), A furnace shell (2) is provided on one side of the vacuum system (1), a heating chamber (3) is provided inside the furnace shell (2), an air-cooled heat exchange system (4) is provided on one side of the furnace shell (2), a pneumatic system (5) is provided on the other side of the vacuum system (1), a thermocouple assembly (6) is provided on the outer wall of the furnace shell (2), an electrode assembly (7) is provided on the outer wall of the furnace shell (2), a charging and discharging system (8) is provided above the vacuum system (1), an electrode wiring device (9) is provided on one side of the furnace shell (2), a water cooling system (10) is provided on one side of the electrode wiring device (9), a uniform temperature zone thermocouple (11) is provided on the outer wall of the furnace shell (2), a furnace body welding part (21) is provided on one side of the furnace shell (2), and a furnace door assembly (22) is installed on one side of the furnace body welding part (21).

2. A high temperature sintering furnace according to claim 1, characterized in that: The vacuum system (1) comprises: A vacuum baffle valve (111), wherein the vacuum baffle valve (111) is arranged on one side of the vacuum furnace; An electric contact pressure gauge (112), wherein the electric contact pressure gauge (112) is arranged on the top of the vacuum furnace; A pipe (114) is connected to the outer wall of the vacuum furnace; A gauge assembly (113) is provided on one side of the electric contact pressure gauge (112), and the gauge assembly (113) is fixedly installed on the top of the vacuum furnace. One end of the connecting pipe (114) is connected to the connecting furnace, and a vacuum baffle valve (115) is provided on the top of the connecting furnace. A connecting pipe (116) is provided below the vacuum baffle valve (115), and the connecting pipe (116) is connected to the bottom of the connecting furnace.

3. A high temperature sintering furnace according to claim 2, characterized in that: A bellows pipe 1 (117) is provided on one side of the second connecting pipe (116), one end of the bellows pipe 1 (117) is connected to a connecting pipe 3 (118), an electromagnetic high vacuum air valve (119) is provided on the outer wall of the connecting pipe 3 (118), and one end of the connecting pipe 3 (118) is connected to a rotary vane vacuum pump (1110) located below the electromagnetic high vacuum air valve (119).

4. A high temperature sintering furnace according to claim 2, characterized in that: The other end of the vacuum baffle valve 1 (111) is connected to a pipe 4 (1111), one end of the pipe 4 (1111) is connected to a roots vacuum pump (1112), a pump stand (1113) is provided below the roots vacuum pump (1112), the outer wall of the pipe 2 (116) is connected to a bellows line 2 (1114), a vacuum baffle valve 3 (1115) is provided below the bellows line 2 (1114), a diffusion pump (1116) is provided on one side of the bellows line 2 (1114), and the diffusion pump (1116) is located below the electric contact pressure gauge (112).

5. The high-temperature sintering furnace according to claim 1, characterized in that: The furnace body assembly weldment (21) comprises: A flange (211), wherein the flange (211) is arranged on the outer wall of the furnace shell (2); A hanging ring (212), wherein the hanging ring (212) is arranged on the outer wall of the furnace shell (2); an explosion-proof valve interface (213), the explosion-proof valve interface (213) being sleeved on the outer wall of the pipeline; an inner cylinder (214), the inner cylinder (214) being installed inside the furnace shell (2); An electrode interface (2110), wherein the electrode interface (2110) is arranged on the outer wall of the furnace shell (2); A nine-point temperature measurement interface (2113), wherein the nine-point temperature measurement interface (2113) is arranged on the outer wall of the furnace shell (2); A furnace leg (2114), wherein the furnace leg (2114) is fixedly mounted on the bottom of the furnace shell (2); A lifting ring reinforcement plate (2119) is fixedly mounted on the top of the furnace shell (2). The outer wall of the inner cylinder (214) is sleeved with an outer cylinder (215), the inner wall of the outer cylinder (215) is arranged on an inner seal (216), the outer wall of the outer cylinder (215) is provided with an outer seal (217), one end of the outer cylinder (215) is provided with a rear flange (218), and a heat exchanger interface (219) is installed below the rear flange (218).

6. The high-temperature sintering furnace according to claim 5, characterized in that: A thermocouple interface (2111) is provided on one side of the electrode interface (2110), a pressure gauge interface (2112) is provided on the other side of the electrode interface (2110), and a furnace leg reinforcement plate (2115) is fixedly installed on the bottom of the furnace leg (2114).

7. The high-temperature sintering furnace according to claim 6, characterized in that: An inflation interface (2117) is provided on one side of the nine-point temperature measurement interface (2113), a vacuum interface (2118) is provided on one side of the pressure gauge interface (2112), and an exhaust interface (2120) is provided on one side of the vacuum interface (2118), and the exhaust interface (2120) is located at the top of the furnace shell (2).

8. The high-temperature sintering furnace according to claim 1, characterized in that: The furnace door assembly (22) includes: A handle (221), wherein the handle (221) is fixedly mounted on the outer wall of the furnace door; A clamping ring (222) is provided on the outer wall of the furnace door, and a connecting plate (223) is provided below the clamping ring (222).

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