CN218329319U - Vacuum multi-section temperature gradient furnace - Google Patents
Vacuum multi-section temperature gradient furnace Download PDFInfo
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- CN218329319U CN218329319U CN202222798270.4U CN202222798270U CN218329319U CN 218329319 U CN218329319 U CN 218329319U CN 202222798270 U CN202222798270 U CN 202222798270U CN 218329319 U CN218329319 U CN 218329319U
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Abstract
The utility model belongs to the technical field of vacuum sintering furnaces, in particular to a vacuum multi-section temperature gradient furnace, which comprises a furnace body and a quartz furnace tube, and is characterized in that the length of the quartz furnace tube is larger than the width of the furnace body and is connected with a vacuum connecting pipe fitting; the furnace base is connected with the quartz furnace barrel through a ball bearing bracket, the quartz furnace barrel is arranged on the tile-shaped ball bearing bracket in a floating manner, and refractory balls are arranged on the ball bearing bracket in an array manner; the two ends of the quartz furnace barrel are respectively provided with a pipe hoop, the two pipe hoops are connected through a rack, and an output shaft of the servo motor is meshed with the rack through a gear. Compared with the prior art, the beneficial effects of the utility model reside in that: the scheme adopts the combination of a movable quartz furnace barrel and a refractory furnace body, the furnace barrel can form different temperature section sintering areas due to temperature drop when moving relative to the refractory furnace body, and the position of the furnace barrel relative to the furnace body is adjusted according to the temperature of the furnace barrel required by the test, so that the purpose of multi-temperature section sintering of materials is realized.
Description
Technical Field
The utility model belongs to the technical field of the vacuum sintering stove, especially, relate to a vacuum multistage temperature gradient stove.
Background
The vacuum sintering furnace is mainly used for heating and heat treatment in laboratories of various industrial and mining enterprises, scientific research units and laboratories, and is indispensable instrument and equipment in various laboratories. When the vacuum multi-section temperature gradient furnace in the prior art is used, materials needing to be heated are placed into the quartz furnace tube, then the furnace cover is covered, the quartz furnace tube is vacuumized firstly, and heating is started after the set vacuum degree is reached. The temperature in the vacuum multi-section temperature gradient furnace is higher and generally can reach 1100 ℃ to 1300 ℃, when the sintering time reaches a set time, the furnace cover is opened, the quartz furnace tube is cooled, and after the temperature reaches normal temperature, the quartz furnace tube can be opened, and the material is taken out for analysis and detection.
In order to simulate various test temperature conditions, the application of a vacuum sintering furnace with single temperature is limited, if the temperature is adjusted directly by changing power in the test process, the efficiency is low and the effect is not good, because the refractory material layer of the sintering furnace body is thick, the heat capacity is large, the temperature change curve is slow, for the sintering reaction, the sintering effect is influenced by too slow temperature response, and the evaluation is difficult. Thus making the multi-temperature design an air talk.
The Chinese invention patent with the application number of 201010221520.7 discloses a multi-temperature-zone high-capacity energy-saving vacuum sintering furnace which comprises a furnace shell, a heating chamber, a vacuum system, a cooling system and a PLC automatic control system, wherein a middle heater is axially and vertically arranged in the middle of the heating chamber, and the heating chamber is divided into two working zones; the rear end of the heating chamber is provided with a switchable valve as a cooling gas channel, and the heat-insulating layer is thickened to 1.5 times of the original thickness. The defects of the scheme are that the subsection of the temperature zone is greatly influenced by the space of the furnace body, and the effect of multi-temperature sintering is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vacuum multistage temperature gradient stove overcomes prior art's is not enough, adopts portable quartzy stove section of thick bamboo to combine with fire-resistant stove body, and the stove section of thick bamboo can remove fire-resistant stove body relatively, and for the position of furnace body, the temperature regulation stove section of thick bamboo according to the stove section of thick bamboo makes the material realize the purpose of many temperature section sinterings.
In order to achieve the above object, the utility model provides a following technical scheme:
a vacuum multi-stage temperature gradient furnace comprises a furnace body and a quartz furnace barrel, and is characterized in that the furnace body comprises a furnace base and a furnace cover, the furnace base and the furnace cover are connected through a hinge to form an upper flip structure, and the inner sides of the furnace base and the furnace cover are respectively provided with a refractory lining and an electric heating wire; the length of the quartz furnace cylinder is greater than the width of the furnace body, and two ends of the quartz furnace cylinder are respectively opened and connected with the vacuum connecting pipe fitting; the furnace base is connected with the quartz furnace barrel through a ball bearing bracket, the quartz furnace barrel is arranged on the tile-shaped ball bearing bracket in a floating manner, and refractory balls are arranged on the ball bearing bracket in an array manner; the two ends of the quartz furnace barrel are respectively provided with a pipe hoop, the two pipe hoops are connected through a rack, the rack is positioned in a communicating groove of the support and the furnace base, a servo motor is arranged on any one support, and an output shaft of the servo motor is meshed with the rack through a gear.
Furthermore, a gas strut for assisting in opening the cover is arranged between the furnace base and the furnace cover on the left and right.
Further, the tile-shaped ball carrier is a ceramic sintered body.
Furthermore, the refractory ball is a high-alumina refractory ball or a corundum refractory ball, and the diameter of the refractory ball is 20-35mm.
Furthermore, a driven gear is arranged on the support and meshed with the rack.
Furthermore, two sides of the furnace cover are respectively provided with an infrared temperature measuring probe.
Furthermore, the rack is a rod-shaped structure, the middle section of the rack is a heat-resistant steel polished rod, and two ends of the rack are connected with the rack.
Compared with the prior art, the beneficial effects of the utility model reside in that: 1) The scheme adopts the combination of a movable quartz furnace barrel and a refractory furnace body, different temperature section sintering areas can be formed due to temperature drop when the furnace barrel moves relative to the refractory furnace body, and the position of the furnace barrel relative to the furnace body is adjusted according to the temperature of the furnace barrel required by a test, so that the purpose of multi-temperature section sintering of materials is realized. 2) The refractory ball is used as a support, so that the moving resistance is reduced, the high-temperature resistance effect is good, and the movement of the quartz furnace barrel cannot be influenced due to the deformation caused by high temperature. 3) The heat-resistant steel polished rod is arranged in the middle of the rack, so that the manufacturing cost can be reduced, the moving resistance relative to the refractory lining is small, and the influence of high-temperature deformation can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic view of the distribution of electric heating wires inside the furnace cover in the embodiment of the present invention.
In the figure: 1. the device comprises a furnace body, 2, a quartz furnace cylinder, 3, a furnace base, 4, a furnace cover, 5, a hinge, 6, a refractory lining layer, 7, an electric heating wire, 8, a vacuum connecting pipe fitting, 9, a tile-shaped ball bracket, 10, a refractory ball, 11, a pipe hoop, 12, a rack, 13, a support, 14, a servo motor, 15, a driving gear, 16, an air supporting rod, 17, a driven gear, 18 and an infrared temperature measuring probe.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1-3, an embodiment of a vacuum multi-stage temperature gradient furnace according to the present invention is schematically shown, and comprises a furnace body 1 and a quartz furnace tube 2, wherein the furnace body 1 comprises a furnace base 3 and a furnace cover 4, the furnace base 3 and the furnace cover 4 are connected by a hinge 5 to form an upper flip structure, and a refractory lining layer 6 and an electric heating wire 7 are respectively arranged on the inner sides of the furnace base 3 and the furnace cover 4; the length of the quartz furnace cylinder 2 is larger than the width of the furnace body 1, and the two ends of the quartz furnace cylinder are respectively opened and connected with the vacuum connecting pipe fitting 8; the furnace base 3 is connected with the quartz furnace cylinder 2 through a ball bearing bracket 9, the quartz furnace cylinder 2 is arranged on the tile-shaped ball bearing bracket 9 in a floating way, and fire-resistant balls 10 are arranged on the ball bearing bracket 9 in an array way; the two ends of the quartz furnace tube 2 are respectively provided with a pipe hoop 11, the two pipe hoops 11 are connected through a rack 12, the rack 12 is positioned in a communicating groove between a support 13 and the furnace base 3, a servo motor 14 is arranged on the right support 13, an output shaft of the servo motor 14 is meshed with the rack 12 through a driving gear 15, and the support 13 is also provided with 1-2 driven gears 17 which are meshed with the rack 12, so that the rack 12 carries the quartz furnace tube 2 to keep moving stably left and right.
An air supporting rod 16 for assisting in opening the cover is respectively arranged on the left and the right between the furnace base 3 and the furnace cover 4, so that the furnace cover 4 can be conveniently opened, and the quartz furnace cylinder 2 can be placed.
In order to make the quartz muffle 2 more convenient to move, the tile-shaped ball bearing bracket 9 is made of ceramic sintered body. The refractory ball 10 is a high-alumina refractory ball 10 or a corundum refractory ball 10, and the diameter is 20-35mm. The fire-resistant balls 10 are movably arranged in the holes on the tile-shaped ball brackets 9 and can freely rotate under the friction of external force.
And the two sides of the furnace cover 4 are respectively provided with an infrared temperature measuring probe 18 for measuring the temperature of the quartz furnace barrel 2 at the exposed part, and according to the process design, when the temperature of the quartz furnace barrel is reduced to a required value, the servo motor 14 is started to move the quartz furnace barrel 2 left and right, so that the corresponding area is arranged in the furnace body.
In order to reduce the cost, the rack 12 can be made into a rod-shaped structure with a heat-resistant steel polished rod at the middle section and two ends connected with the rack 12, and the length of the rack is only slightly larger than that of the moving section. The length of the heat-resistant steel polished rod can be selected according to the requirement, and the whole section of the polished rod can be a rack.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A vacuum multi-stage temperature gradient furnace comprises a furnace body and a quartz furnace barrel, and is characterized in that the furnace body comprises a furnace base and a furnace cover, the furnace base and the furnace cover are connected through a hinge to form an upper flip structure, and the inner sides of the furnace base and the furnace cover are respectively provided with a refractory lining and an electric heating wire; the length of the quartz furnace cylinder is greater than the width of the furnace body, and the two ends of the quartz furnace cylinder are respectively provided with an opening and connected with the vacuum connecting pipe fitting; the furnace base is connected with the quartz furnace barrel through a ball bearing bracket, the quartz furnace barrel is arranged on the tile-shaped ball bearing bracket in a floating manner, and refractory balls are arranged on the ball bearing bracket in an array manner; the two ends of the quartz furnace barrel are respectively provided with a pipe hoop, the two pipe hoops are connected through a rack, the rack is positioned in a communicating groove of the support and the furnace base, a servo motor is arranged on any one support, and an output shaft of the servo motor is meshed with the rack through a gear.
2. The vacuum multi-stage temperature gradient furnace as claimed in claim 1, wherein a gas strut for assisting the cover opening is respectively arranged between the furnace base and the furnace cover.
3. The vacuum multistage temperature gradient furnace of claim 1, wherein the tile-shaped ball bearing bracket is a ceramic sintered body.
4. The vacuum multi-stage temperature gradient furnace according to claim 1, wherein the refractory ball is a high-alumina refractory ball or a corundum refractory ball with a diameter of 20-35mm.
5. The vacuum multi-stage temperature gradient furnace as claimed in claim 1, wherein the support is provided with a driven gear engaged with the rack.
6. The vacuum multi-stage temperature gradient furnace according to claim 1, wherein infrared temperature measuring probes are respectively arranged on two sides of the furnace cover.
7. The vacuum multi-stage temperature gradient furnace of claim 1, wherein the rack is a rod-shaped structure with a heat-resistant polished steel rod at the middle section and two ends connected with the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798270.4U CN218329319U (en) | 2022-10-24 | 2022-10-24 | Vacuum multi-section temperature gradient furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798270.4U CN218329319U (en) | 2022-10-24 | 2022-10-24 | Vacuum multi-section temperature gradient furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218329319U true CN218329319U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222798270.4U Active CN218329319U (en) | 2022-10-24 | 2022-10-24 | Vacuum multi-section temperature gradient furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218329319U (en) |
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2022
- 2022-10-24 CN CN202222798270.4U patent/CN218329319U/en active Active
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