CN213257097U - Bell jar type debonding furnace - Google Patents
Bell jar type debonding furnace Download PDFInfo
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- CN213257097U CN213257097U CN202021904890.6U CN202021904890U CN213257097U CN 213257097 U CN213257097 U CN 213257097U CN 202021904890 U CN202021904890 U CN 202021904890U CN 213257097 U CN213257097 U CN 213257097U
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Abstract
The utility model relates to a debonding furnace specifically is a bell jar formula debonding furnace, including the furnace base, arrange the tray between product bottom and product, its technical essential is: the furnace base comprises an annular furnace base and a high-temperature-resistant base embedded in a small circle in the center of the annular furnace base, a circular high-temperature-resistant enclosure platform is arranged on the periphery of the high-temperature-resistant base, a guide pillar is arranged on one side of the upper surface of the annular furnace base, a heating cover furnace shell is fixed to the guide pillar through a guide sleeve, a hearth is formed inside the heating cover furnace shell, a suspended ceiling is arranged at an opening in the top of the heating cover furnace shell, the bottom of the heating cover furnace shell and the annular furnace base are supported and fixed through a plurality of supporting seats, heat insulation layers wrap the inner walls of the heating cover furnace shell and the suspended ceiling, a plurality of heating assemblies are arranged on the heating cover furnace shell and the heat insulation layers in a penetrating mode, and thermocouples are arranged on the middle position of one side. The adhesive tape has the advantages of simple structure, convenience in operation, thorough debonding, better heating and heat preservation effects and lower waste cost.
Description
Technical Field
The utility model relates to a debonding furnace, in particular to a bell jar type debonding furnace.
Background
The forming agent is usually added to assist product forming during press forming of parts such as metal, and the common forming agent comprises paraffin, stearic acid and the like, and when the stearic acid is used as the forming agent, the stearic acid needs to be removed before sintering, namely, a de-bonding process in a working procedure, and the sintering quality of the product can be influenced if the de-bonding is not complete. Stearic acid is volatile at high temperature, so that at present, the pressed product is more prone to be placed in a debonding furnace for treatment, and stearic acid is volatilized under the action of high temperature to be removed. The existing debonding furnace mainly comprises a furnace base, a furnace shell, a heating element, a tray and an air pump, but the structure of the debonding furnace has some problems:
1. stearic acid is easy to fall on a solid tray after volatilization, and is contacted with a product, so that the product is not completely debonded, the stearic acid is completely removed by increasing the air extraction amount and prolonging the air extraction time, and the waste cost is extremely high.
2. The temperature in the furnace is not uniform, the heat preservation effect is not good, the temperature cannot be monitored, and the debonding effect is influenced.
Disclosure of Invention
An object of the utility model is to solve above-mentioned problem, provide a bell jar formula debonding furnace, its simple structure, convenient operation has adopted foraminiferous tray, and the debonding is thorough, and heating and heat preservation effect are better, have realized the control to the temperature, can not cause the extravagant cost lower.
The technical scheme of the utility model is that:
the utility model provides a bell jar formula debonding furnace, includes the furnace base, arranges the tray between product bottom and product, and its technical essential is: the furnace base comprises an annular furnace base and a high-temperature-resistant base embedded in a small circle in the center of the annular furnace base, a circular high-temperature-resistant surrounding platform is arranged on the periphery of the high-temperature-resistant base, a guide pillar is arranged on one side of the upper surface of the annular furnace base, a heating cover furnace shell is fixed on the guide pillar through a guide sleeve, a hearth is formed inside the heating cover furnace shell, a suspended ceiling is arranged at an opening in the top of the heating cover furnace shell, the bottom of the heating cover furnace shell and the annular furnace base are supported and fixed through a plurality of support seats, heat insulation layers are wrapped on the inner walls of the heating cover furnace shell and the suspended ceiling, a plurality of heating components are arranged on the heating cover furnace shell and the heat insulation layers in a penetrating manner, thermocouples are arranged on the middle positions of the heating cover furnace shell and the heat insulation layers on the side opposite to the guide pillar in a penetrating manner, a furnace platform is arranged, the outer wall of the vent pipe is fixed with an armored thermocouple through a thermocouple locating sleeve, an inner cover is arranged on the high-temperature-resistant base on the periphery of the vent pipe, an inner cavity is formed inside the inner cover, the tray is placed in the inner cavity, a plurality of exhaust holes are uniformly arranged on the tray, air outlet channels are arranged at the center of the high-temperature-resistant base and the center of the furnace platform, a buffer well is arranged downwards on the ground corresponding to the furnace platform, and the air outlet channels communicated with the processing device are arranged at the bottom of the buffer well.
In the bell jar type debonding furnace, the sealing ring is arranged between the high-temperature-resistant surrounding platform and the heat insulation layer for locking and sealing.
The heating assembly comprises a leading-out rod and a heating pipe fixing piece which penetrate through a heating cover furnace shell and are fixed with a heat insulation layer, and a resistance heating pipe clamped between the leading-out rod and the heating pipe fixing piece.
According to the bell jar type debonding furnace, the two armored thermocouples are different in height, and the tops of the two armored thermocouples are respectively located in the middle and at the upper portion of the inner cavity.
In the bell jar type debonding furnace, the centers of the tops of the suspended ceiling and the inner cover outer wall are respectively provided with the lifting bar.
According to the bell jar type debonding furnace, the air outlet channel is communicated with the inner cavity and the air supply channel, the air suction pump is arranged at the bottom of the air outlet channel, and the diameter of the buffer well is smaller than that of the high-temperature resistant base.
In the bell jar type debonding furnace, the exhaust holes are round holes with the diameter of 3 mm.
In the bell jar type debonding furnace, the edge of the tray is provided with the coaming, the coaming and the tray are uniformly provided with the exhaust holes, and the diameters of the exhaust holes are 2 mm.
The utility model has the advantages that:
1. be equipped with the exhaust hole on the tray, volatile stearic acid can pass from the exhaust hole, discharges through the pipeline of giving vent to anger downwards, and difficult formation secondary is piled up, and the debonding is more abundant, has reduced unnecessary extravagant.
2. The multiple heating components control the furnace temperature through a program temperature controller, the furnace temperature is independently controlled in an upper area and a lower area, the armored thermocouples with different heights can respectively monitor and control the furnace temperature in the upper area and the lower area, the thermocouples can monitor the average furnace temperature, and the thermocouples are used for giving an alarm when the furnace temperature exceeds the temperature.
3. The whole inner cavity can be uniformly distributed with protective gas such as nitrogen and the like from the top to the bottom through the gas outlet at the top of the vent pipe, so that the debonding effect is better.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the tray of the present invention (corresponding to embodiment 1);
fig. 3 is a schematic structural view of the tray of the present invention (corresponding to example 2);
fig. 4 is a top view of the present invention shown in fig. 3.
In the figure: 1. the furnace comprises a hanger, a ceiling, a hearth, a heat-insulating layer, a furnace body, a furnace seat, a furnace cover, a furnace hood, a furnace jacket, a furnace holder, a furnace seat, a gas-feeding channel, a buffer well, a gas-pumping pump, a gas-discharging channel, a ring-shaped furnace seat, a buffer well, a gas-sucking pump, a buffer well, a gas-discharging channel, a gas.
Detailed Description
The technical solution of the present invention is further explained by the following specific embodiments with reference to the accompanying drawings.
Example 1
As shown in fig. 1-2, the bell jar type debonding furnace includes a furnace base 13, a tray 26 disposed between the bottom of the product and the product.
Wherein, the furnace base 13 comprises an annular furnace base 18 and a high temperature resistant base 19 embedded in a small circle at the center of the annular furnace base 18, a circular high temperature resistant surrounding platform 21 is arranged at the periphery of the high temperature resistant base 19, a guide post 22 is arranged at one side of the upper surface of the annular furnace base 18, a heating cover furnace shell 29 is fixed on the guide post 22 through a guide sleeve 20, a hearth 3 is formed inside the heating cover furnace shell 29, a suspended ceiling 2 is arranged at the top opening of the heating cover furnace shell 29, the bottom of the heating cover furnace shell 29 and the annular furnace base 18 are supported and fixed through four support seats 12, heat insulating layers 4 are respectively wrapped on the inner walls of the heating cover furnace shell 29 and the suspended ceiling 2, eight heating assemblies 6 are arranged on the heating cover furnace shell 29 and the heat insulating layers 4 in a penetrating manner, thermocouples 7 are arranged on the middle positions of one side of the heating cover furnace shell 29 and the heat insulating layers 4 opposite to the guide post 22 in, 24 both sides of stove top all are equipped with the breather pipe 25, the external intake pipe in bottom of breather pipe 25, gas outlet 5 has been seted up at the top, the breather pipe 25 outer wall all is fixed with armoured thermocouple 23 through thermocouple 7 position sleeve, inner cover 30 has been arranged to the breather pipe 25 periphery on high temperature resistant base 19, and the inside inner chamber 28 that forms of inner cover 30, tray 26 is placed in inner chamber 28, and a plurality of exhaust holes 27 have been arranged to align to grid on the tray 26, gas outlet channel 17 has all been seted up to high temperature resistant base 19 and 24 central departments of stove top, buffer well 15 is seted up downwards to the ground that stove top 24 corresponds, sets up gas outlet channel 14 with processing apparatus intercommunication in buffer well 15's bottom.
In this embodiment, a sealing ring 11 is arranged between the high temperature resistant surrounding platform 21 and the heat insulating layer 4 for locking and sealing. The heating assembly 6 comprises an extraction rod 10 and a heating pipe fixing piece 8 which penetrate through a heating cover furnace shell 29 and are fixed on the heat preservation layer 4, and a resistance heating pipe 9 clamped between the extraction rod 10 and the heating pipe fixing piece 8. The two sheathed thermocouples 23 have different heights, and the tops of the two sheathed thermocouples 23 are respectively positioned at the middle part and the upper part of the inner cavity 28. And lifting bars 1 are arranged at the centers of the tops of the outer walls of the suspended ceiling 2 and the inner cover 30. The air outlet channel 17 is communicated with the inner cavity 28 and the air feeding channel 14, the air suction pump 16 is arranged at the bottom of the air outlet channel 17, and the diameter of the buffer well 15 is smaller than that of the high-temperature resistant base 19. The exhaust hole 27 is a circular hole having a diameter of 3 mm.
In this embodiment, the furnace platform 24 is constructed by high-alumina bricks, the heat-insulating layer 4 is made of high-quality alumina silicate fiber blanket, the air outlet 5 of the air pipe 25 is used for dispersing protective gas such as nitrogen entering from the air inlet pipe, and the lifting bar 1 arranged at the central position is used for ensuring the perpendicularity during lifting, thereby facilitating the traveling operation. The heating component 6 controls the furnace temperature through a program temperature controller, the furnace temperature is independently controlled in an upper area and a lower area, the armored thermocouples 23 with different heights can respectively monitor and control the furnace temperature in the upper area and the lower area, the thermocouple 7 can monitor the average furnace temperature, and the thermocouple is used for giving an alarm when the furnace temperature exceeds the temperature. The embodiment is suitable for the debonding treatment of annular products.
The working principle is as follows:
after the suspended ceiling 2 and the inner cover 30 are lifted by the lifting flaps 1, a tray 26 is firstly lifted on the furnace platform 24, then the annular products are regularly stacked on the tray 26, a tray 26 is further placed on the top of the annular products after the annular products are stacked to fifteen to twenty layers and is continuously stacked, at most four trays 26 can be built in the inner cavity 28, the inner cover 30 and the suspended ceiling 2 are lifted back to the original position after the annular products are stacked, the temperature of the furnace is adjusted and controlled by the program temperature controller, protective gas is released to the inner cavity 28, the temperature of the furnace cavity 3 is increased to ensure that the temperature of the inner cavity 28 is increased, stearic acid on the annular products is volatilized under the high-temperature condition, and the stearic acid is continuously pumped into the buffer well 15 through the exhaust holes 27 by the air pump 16 and then is sent into the processing device for subsequent processing by the air supply.
Example 2
In the embodiment, as shown in fig. 3-4, a surrounding plate 31 is arranged at the edge of the tray 26, a plurality of vent holes 27 are uniformly arranged on the surrounding plate 31 and the tray 26, and the diameter of the vent hole 27 is 2 mm. Is suitable for the debonding treatment of spherical products.
During operation, spherical products are placed on the tray 26 with the enclosing plates 31 to prevent the products from falling off, after the spherical products are fully stacked, the tray 26 with the enclosing plates 31 is placed on the tray 26 and is stacked continuously, four trays 26 with the enclosing plates 31 can be built in the inner cavity 28, the enclosing plates 31 and the exhaust holes 27 in the tray 26 enable stearic acid to be volatilized without being blocked, and the debonding treatment is more thorough.
The rest is the same as example 1.
Claims (8)
1. The utility model provides a bell jar formula debonding furnace, includes furnace base, arranges the tray between product bottom and product which characterized in that: the furnace base comprises an annular furnace base and a high-temperature-resistant base embedded in a small circle in the center of the annular furnace base, a circular high-temperature-resistant surrounding platform is arranged on the periphery of the high-temperature-resistant base, a guide pillar is arranged on one side of the upper surface of the annular furnace base, a heating cover furnace shell is fixed on the guide pillar through a guide sleeve, a hearth is formed inside the heating cover furnace shell, a suspended ceiling is arranged at an opening in the top of the heating cover furnace shell, the bottom of the heating cover furnace shell and the annular furnace base are supported and fixed through a plurality of support seats, heat insulation layers are wrapped on the inner walls of the heating cover furnace shell and the suspended ceiling, a plurality of heating components are arranged on the heating cover furnace shell and the heat insulation layers in a penetrating manner, thermocouples are arranged on the middle positions of the heating cover furnace shell and the heat insulation layers on the side opposite to the guide pillar in a penetrating manner, a furnace platform is arranged, the outer wall of the vent pipe is fixed with an armored thermocouple through a thermocouple locating sleeve, an inner cover is arranged on the high-temperature-resistant base on the periphery of the vent pipe, an inner cavity is formed inside the inner cover, the tray is placed in the inner cavity, a plurality of exhaust holes are uniformly arranged on the tray, air outlet channels are arranged at the center of the high-temperature-resistant base and the center of the furnace platform, a buffer well is arranged downwards on the ground corresponding to the furnace platform, and the air outlet channels communicated with the processing device are arranged at the bottom of the buffer well.
2. The bell jar type debonding furnace of claim 1, wherein: and a sealing ring is arranged between the high-temperature-resistant surrounding platform and the heat-insulating layer for locking and sealing.
3. The bell jar type debonding furnace of claim 1, wherein: the heating component comprises a leading-out rod and a heating pipe fixing piece which penetrate through the furnace shell of the heating cover and are fixed with the heat preservation layer, and a resistance heating pipe clamped between the leading-out rod and the heating pipe fixing piece.
4. The bell jar type debonding furnace of claim 1, wherein: the heights of the two armored thermocouples are different, and the tops of the two armored thermocouples are respectively positioned in the middle and at the upper part of the inner cavity.
5. The bell jar type debonding furnace of claim 1, wherein: and lifting bars are arranged at the centers of the tops of the outer walls of the suspended ceiling and the inner cover.
6. The bell jar type debonding furnace of claim 1, wherein: the air outlet channel is communicated with the inner cavity and the air supply channel, the air suction pump is arranged at the bottom of the air outlet channel, and the diameter of the buffer well is smaller than that of the high-temperature-resistant base.
7. The bell jar type debonding furnace of claim 1, wherein: the exhaust hole is a round hole with the diameter of 3 mm.
8. The bell jar type debonding furnace of claim 1, wherein: the bounding wall has been arranged to the border of tray, and a plurality of exhaust holes have been arranged to even arrangement on bounding wall and the tray, and the diameter in exhaust hole is 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021904890.6U CN213257097U (en) | 2020-09-04 | 2020-09-04 | Bell jar type debonding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021904890.6U CN213257097U (en) | 2020-09-04 | 2020-09-04 | Bell jar type debonding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213257097U true CN213257097U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021904890.6U Active CN213257097U (en) | 2020-09-04 | 2020-09-04 | Bell jar type debonding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213257097U (en) |
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2020
- 2020-09-04 CN CN202021904890.6U patent/CN213257097U/en active Active
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