CN112556426B - Sintering furnace with gas-phase quenching function and quenching process thereof - Google Patents
Sintering furnace with gas-phase quenching function and quenching process thereof Download PDFInfo
- Publication number
- CN112556426B CN112556426B CN202011478793.XA CN202011478793A CN112556426B CN 112556426 B CN112556426 B CN 112556426B CN 202011478793 A CN202011478793 A CN 202011478793A CN 112556426 B CN112556426 B CN 112556426B
- Authority
- CN
- China
- Prior art keywords
- cavity
- quenching
- sample
- sintering
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
- F27D2019/0009—Monitoring the pressure in an enclosure or kiln zone
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Powder Metallurgy (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a sintering furnace with a gas-phase quenching function, which comprises a bell jar, a sintering cavity arranged in the bell jar, a quenching cavity communicated with the bell jar and a rotating device, wherein a bell jar door, an air inlet and an air outlet are arranged on the bell jar; the sintering chamber includes: the feeding door, the discharging door, the bearing table arranged at the bottom of the sintering cavity and the heating element are arranged on the heating element; a groove is arranged on the bearing table, and the heating element is embedded in the groove and the inner wall of the sintering cavity; the quenching cavity comprises a cavity door, a side wall door, a fork paddle device, a plurality of supporting pins and a profile sensor; the quenching cavity is provided with an air inlet channel and an air outlet channel; the fork paddle device includes: the fork paddle, the sliding device and the telescopic device; the supporting drill rod can stretch out and draw back. The atmosphere furnace sintering provided by the invention can realize atmosphere sintering and annealing treatment on the sample, and can also realize a gas phase quenching process on the sample, thereby providing the performance of the material.
Description
Technical Field
The invention relates to the field of material heat treatment equipment, in particular to a sintering furnace with a gas-phase quenching function and a quenching process thereof.
Background
In the field of material hot working and processing technology, high temperature equipment such as box sintering furnaces, atmosphere furnaces and the like is required. The gas-phase quenching is one of the important processes for heat treatment of materials, and particularly, the gas-phase quenching of functional material materials under a specific atmosphere can improve the performance of the materials. Such as in the literature "Large reduction of dielectric losses of CaCu 3 Ti 4 O 12 ceramics via air quenching[J].Ceramics International， 2017， 43(8)：6618-6621[J]"the dielectric constant of the dielectric ceramic can be improved by quenching in the air atmosphere, and the dielectric loss can be effectively reduced. Patent 201711259380.0 discloses enhancing material by quenching the material under airAnd (4) performance.
Most of the existing atmosphere furnaces are tube furnaces or box furnaces with bell jar structures. The existing atmosphere furnace generally introduces gas into a sintering furnace cavity, and only can realize processes of heating, sintering, annealing and the like on a sample. Because the furnace body of the existing atmosphere furnace has the functions of heat preservation and heat storage, the temperature of the chamber of the furnace body is difficult to be quickly reduced, and therefore, the gas-phase quenching process of the material is difficult to realize. In particular for box sintering furnaces, the heating elements are located in the hearth when a special gas, such as H, is introduced into the atmospheric furnace 2 、O 2 In time, oxidation and aging of the heating element are accelerated, which shortens the service life of the sintering furnace. The existing atmosphere furnace or sintering furnace is difficult to meet the requirements of the gas phase quenching process under the special atmosphere of the material.
In order to solve the above problems, it is necessary to develop a sintering furnace with a gas phase quenching function, which is different from the conventional atmosphere furnace, not only performs atmosphere sintering and annealing treatment on a sample, but also can simultaneously implement a gas phase quenching process on the sample, provide material properties, and meet the quenching process requirements under a special atmosphere for the material.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a sintering furnace with a gas-phase quenching function and a quenching process thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: a sintering furnace with a gas-phase quenching function comprises a bell jar, a sintering cavity arranged in the bell jar, a quenching cavity communicated with the bell jar and a rotating device for rotating the quenching cavity, and is characterized in that a bell jar door, an air inlet and an air outlet are arranged on the bell jar, and an annular cavity is further arranged in the bell jar so as to connect the sintering cavity and the quenching cavity;
the sintering chamber comprises: the feeding door, the discharging door, the bearing table arranged at the bottom of the sintering cavity and the heating element; a groove is formed in the bearing table, and the heating element is embedded in the groove and the inner wall of the sintering cavity;
the quenching chamber includes: the cavity chamber door is communicated with the bell jar and the quenching cavity, the side wall door is used for taking out a quenched sample, the fork paddle device, and a plurality of supporting pins and profile sensors are arranged on a dome on the cavity; the quenching cavity is provided with an air inlet channel and an air outlet channel; fork oar device is fixed in the quenching intracavity, fork oar device includes: the fork paddle, a sliding device and a telescopic device are used for respectively controlling the fork paddle to move up and down and stretch back and forth; the fork paddle moves and transfers the quenching sample on the groove to the quenching cavity; the supporting drill rod can stretch and retract.
In a preferred embodiment of the present invention, a thermocouple probe is further disposed inside the sintering chamber, and the thermocouple probe is connected to a heating temperature control system to monitor the temperature inside the sintering chamber.
In a preferred embodiment of the invention, the fork paddle is of a U-shaped or V-shaped structure, and the fork paddle is matched with the groove in shape.
In a preferred embodiment of the invention, a gas temperature regulator for regulating the temperature of the introduced gas, an infrared temperature measuring probe for measuring the temperature of the sample and a gas pressure gauge for monitoring the gas pressure of the quenching cavity are also arranged on the quenching cavity.
In a preferred embodiment of the invention, the annular cavity is arranged on one side of the cavity door close to the bell jar, the shape of the annular cavity is consistent with the shape of the cavity door, and a vacuum pump is arranged in the annular cavity or a vacuum pipeline is arranged in the annular cavity to generate vacuum negative pressure.
In a preferred embodiment of the invention, the profile sensor detects the profile of the surface of the sample and the profile sensor transmits a sample profile signal to the height adjustment system.
In a preferred embodiment of the present invention, the height adjusting system independently adjusts the expansion and contraction height of each supporting rod to fit different sample sizes and to abut against the samples.
The invention also provides a quenching process of the sintering furnace with the gas-phase quenching function, which is characterized by comprising the following steps of:
s1, placing the sample above the groove of the sintering cavity bearing table, closing the bell jar door and introducing gas into the bell jar when the heating element heats the sample, so that the sintering cavity is in the atmosphere of the introduced gas, and monitoring the temperature and pressure parameters of the bell jar and the sintering cavity;
s2, after the sample is heated, when the sample needs to be quenched in a gas phase, opening a chamber door, and introducing gas with a preset temperature and a preset type into the quenching chamber;
s3, opening a discharge door of the sintering cavity upwards, moving the fork paddle up and down and stretching the fork paddle back and forth, so that the fork paddle extends into a groove of the bearing table, lifting the sample upwards, transferring the sample into a quenching cavity for gas-phase quenching, and closing a cavity door when the sample completely enters the quenching cavity;
s4, adjusting the telescopic height of each supporting drill rod according to the signal of the contour sensor so as to abut against the sample; the slewing device drives the quenching cavity to rotate by 0-360 degrees, after the gas phase quenching is carried out for a certain time, the slewing device adjusts the quenching cavity to rotate by a certain angle so as to adjust the placing posture of the sample, and after the gas phase quenching of the sample is finished, the sample is taken out through a side wall door of the quenching cavity.
In a preferred embodiment of the present invention, in S2, the chamber door is opened, and vacuum negative pressure is generated in the annular chamber to prevent the gas in the quenching chamber from flowing into the bell jar and the sintering chamber.
In a preferred embodiment of the invention, the process parameters with wider temperature range can be set by controlling the temperature and pressure parameters of the gas introduced into the quenching cavity, so that the high-temperature sample is directly placed in the gas atmosphere at-150 ℃ to 800 ℃.
In a preferred embodiment of the invention, the feeding door can be opened laterally or opened upwards in a sliding manner.
In a preferred embodiment of the invention, the discharging door is opened upwards through a corresponding rail, and the height of the upward opening is adjusted according to the size of a sample.
In a preferred embodiment of the invention, the exhaust passage is used for exhausting air, and the exhaust passage ensures that the air only goes out but not goes in through a one-way air valve.
In a preferred embodiment of the present invention, the gas temperature regulator uses a liquid nitrogen-heating combination system to regulate the temperature of the gas to-150 ℃ to 800 ℃.
In a preferred embodiment of the invention, the chamber door is arranged at the joint of the quenching chamber and the bell jar, and the door opening mode can be opened in a side opening or upward translation mode.
In a preferred embodiment of the invention, the turning device is a driving motor or a turning rudder.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) the invention provides a sintering furnace with a gas-phase quenching function, which mainly comprises a bell jar, a sintering cavity and a quenching cavity, and not only can realize atmosphere sintering and annealing treatment on a sample, but also can realize a gas-phase quenching process on the sample, thereby providing the performance of materials and meeting the quenching process requirements under special atmosphere of the materials.
(2) The introduced gas can slow down the aging of the heating element of the sintering furnace by the strong oxidizing atmosphere under the negative pressure action of the annular cavity; meanwhile, the gas in the bell jar can be prevented from entering the quenching chamber under the action of the negative pressure of the annular cavity, so that the accuracy of the gas in the quenching chamber is ensured.
(3) The invention adjusts the telescopic height of each supporting drill rod according to the signal of the profile sensor so as to prop against the sample; the slewing device drives the quenching cavity to rotate by 0-360 degrees, and after the gas phase quenching is carried out for a certain time, the slewing device adjusts the quenching cavity to rotate by a certain angle so as to adjust the placing posture of the sample and ensure that each part of the sample is fully contacted with the gas atmosphere and fully cooled.
(4) According to the invention, through the matching of the bearing table of the sintering cavity and the fork paddle, the fork paddle can move back and forth and up and down: stretch into the recess that sets up on the plummer forward downwards, then rise, retreat to the quenching chamber, accomplish with the sample transfer to the quenching chamber from the sintering chamber in, the operation is simple and easy, can reduce external factor's influence.
(5) In the quenching process, when the sample is subjected to gas phase quenching, the temperature of the gas can be monitored, and the temperature of the sample is monitored by an infrared test method.
(6) In the aspect of controlling the gas-phase quenching process, the process parameters with wider temperature range can be set through controlling the temperature of the introduced gas, so that the high-temperature sample can be directly placed in the gas atmosphere at-150-800 ℃.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is a perspective view of a sintering chamber of a preferred embodiment of the present invention;
FIG. 3 is a perspective view of a quench chamber of a preferred embodiment of the present invention;
FIG. 4 is a perspective block diagram of the fork paddle apparatus of the preferred embodiment of the present invention;
in the figure: 100. a bell jar; 110. a clock cover door; 120. an air inlet; 130. an exhaust port;
200. a sintering chamber; 210. a feed gate; 220. a bearing table; 221. a groove; 222. a heating element; 230. a thermocouple probe; 240. a discharge door;
300. an annular cavity; 400. a quenching chamber; 410. a chamber door; 420. a fork paddle device; 421. a fork paddle; 422. a sliding device; 423. a retractor; 430. supporting the drill rod; 440. a profile sensor; 450. an air intake passage; 451. a gas temperature regulator; 460. a barometer; 470. an exhaust passage; 480. an infrared temperature measuring probe; 490. a side wall door; 500. a turning device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus are not to be construed as limiting the scope of the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, a sintering furnace with gas-phase quenching function comprises a box-type sealed bell jar 100, a sintering chamber 200 arranged inside the bell jar 100, a quenching chamber 400 communicated with the bell jar 100 and a rotating device 500 for rotating the quenching chamber 400, wherein an annular chamber 300 is further arranged inside the bell jar 100 to connect the sintering chamber 200 and the quenching chamber 400. The box-type bell jar 100 plays a role in sealing and heat preservation. The box type sintering furnace can heat the sintered sample. The shape of the annular cavity 300 is consistent with the shape of the cavity door 410, a vacuum pump is arranged in the annular cavity 300 to generate vacuum negative pressure, gas in the quenching cavity 400 is prevented from flowing into the area of the bell jar 100 and the sintering cavity 200, and the introduced gas can slow down the aging of the heating element 222 of the sintering furnace by strong oxidizing atmosphere through the negative pressure effect of the annular cavity 300; meanwhile, the negative pressure of the annular cavity 300 can prevent the gas in the bell jar 100 from entering the quenching cavity 400, thereby ensuring the accuracy of the gas in the quenching cavity 400. The quenching chamber 400 provides atmosphere quenching, and the turning device 500 is a driving motor or a turning rudder.
The bell jar 100 is provided with a bell jar door 110, an intake port 120, and an exhaust port 130. The annular chamber 300 is disposed on a side of the chamber door 410 adjacent the bell jar 100. The bell jar door 110 is used for the inlet of the sample feeding channel, the air inlet 120 is used for introducing air, the air outlet 130 is used for the interface of air exhaust or vacuum pumping, and the bell jar 100 is provided with an air pressure gauge 460 for monitoring the air pressure in the bell jar 100.
As shown in fig. 2, the sintering chamber 200 includes: a feeding door 210, a discharging door 240, a bearing platform 220 arranged at the bottom of the sintering chamber 200 and a heating element 222; the feeding door 210 can be opened laterally or opened upwards in a sliding manner, the discharging door 240 is opened upwards through a corresponding track, and the height of the upward opening is adjusted according to the size of a sample. A groove 221 is formed on the supporting platform 220 at the bottom of the sintering chamber 200, and the groove 221 allows the front fork of the fork paddle 421 to be inserted into the groove to take out the sintered sample. The heating element 222 is embedded in the groove 221 or in a four sided chamber wall arrangement or a left and right opposite chamber wall arrangement. A thermocouple probe 230 is further arranged inside the sintering chamber 200, and the thermocouple probe 230 is connected with a heating temperature control system to monitor the temperature inside the sintering chamber 200.
As shown in fig. 3, the quenching chamber 400 includes: a chamber door 410 for communicating the bell jar 100 and the quenching chamber 400, a side wall door 490 for taking out a quenched sample, a fork paddle device 420, and a plurality of support pins 430 and a profile sensor 440 arranged on a dome on the chamber body; the support pins 430 are capable of telescoping.
The quenching chamber 400 is provided with an air inlet channel 450 and an air outlet channel 470, the air inlet channel 450 is used for introducing quenching gas, the air outlet channel 470 is used for exhausting gas, and the air outlet channel 470 ensures that the gas only flows out and does not flow in through a one-way gas valve.
The quenching cavity 400 is also provided with a gas temperature regulator 451 for regulating the temperature of the introduced gas, an infrared temperature measuring probe 480 for measuring the temperature of the sample and a gas pressure gauge 460 for monitoring the gas pressure of the quenching cavity 400. The gas temperature regulator 451 uses a liquid nitrogen-heating combined system to regulate the temperature of the gas to-150 ℃ to 800 ℃. The chamber door 410 is arranged at the joint of the quenching chamber 400 and the bell jar 100, and the door opening mode can be opened in a side opening or upward translation mode.
The profile sensor 440 detects the profile of the sample surface, and the profile sensor 440 transmits a sample profile signal to the height adjustment system, which independently adjusts the telescopic height of each support pin 430 to fit different sample sizes and to abut against the samples. The slewing device 500 drives the quenching cavity 400 to rotate by 0-360 degrees, and after the gas phase quenching is carried out for a certain time, the slewing device 500 adjusts the quenching cavity 400 to rotate by a certain angle so as to adjust the placing posture of the sample and ensure that each part of the sample is fully contacted with the gas atmosphere and fully cooled.
As shown in fig. 4, the fork paddle apparatus 420 is fixed in the quenching chamber 400, and the fork paddle apparatus 420 includes; the fork paddle 421, and a sliding device 422 and a telescopic device 423 which respectively control the fork paddle 421 to move up and down and stretch back and forth; through the cooperation of plummer 220 and fork oar 421 of sintering chamber 200, fork oar 421 can be around, reciprocate: the sample is transferred from the sintering chamber 200 to the quenching chamber 400 after extending forwards and downwards into the groove 221 arranged on the bearing table 220 and then ascending and retreating to the quenching chamber 400, so that the operation is simple and easy, and the influence of external factors can be reduced. The fork paddle 421 is a U-shaped or V-shaped structure, and the fork paddle 421 is matched with the groove 221 in shape.
The invention also provides a quenching process of the sintering furnace with the gas-phase quenching function, which is characterized by comprising the following steps of:
s1, placing the sample above the groove 221 on the bearing table 220 of the sintering cavity 200, closing the bell jar door 110 and introducing gas into the bell jar 100 when the heating element 222 heats the sample, so that the sintering cavity 200 is in the atmosphere of the introduced gas, and monitoring the temperature and pressure parameters of the bell jar 100 and the sintering cavity 200;
s2, after the sample is heated, when the sample needs to be quenched in a gas phase, opening the chamber door 410, and introducing gas with a preset temperature and a preset type into the quenching cavity 400;
s3, opening the discharge door 240 of the sintering cavity 200 upwards, moving the fork paddle 421 upwards and backwards and forwards, so that the fork paddle 421 extends into the groove 221 of the bearing platform 220, lifting the sample upwards, transferring the sample into the quenching cavity 400 for gas phase quenching, and closing the cavity door 410 when the sample completely enters the quenching cavity 400;
s4, adjusting the telescopic height of each supporting drill rod 430 according to the signal of the profile sensor 440 so as to support the sample; the slewing device 500 drives the quenching cavity 400 to rotate by 0-360 degrees, after the gas phase quenching is carried out for a certain time, the slewing device 500 adjusts the quenching cavity 400 to rotate by a certain angle so as to adjust the placing posture of the sample, and after the gas phase quenching of the sample is finished, the sample is taken out through the side wall door 490 of the quenching cavity 400.
It should be noted that in S1, in order to ensure the temperature of the sintering chamber, the opening degree of the inlet door and the outlet door may be adjusted, or after the doors are closed, the inside of the sintering chamber 200 may be exposed to the gas atmosphere in the bell jar 100 through the gap at the doors. At S2, the chamber door 410 is opened and vacuum negative pressure is generated in the annular chamber 300, preventing the gas of the quenching chamber 400 from flowing into the bell jar and the sintering chamber 200. By controlling the temperature and pressure parameters of the gas introduced into the quenching chamber 400, the process parameters with a wider temperature range can be set, so that the high-temperature sample can be directly placed in the gas atmosphere at-150 ℃ to 800 ℃.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A sintering furnace with a gas-phase quenching function comprises a bell jar, a sintering cavity arranged in the bell jar, a quenching cavity communicated with the bell jar and a rotating device for rotating the quenching cavity, and is characterized in that a bell jar door, an air inlet and an air outlet are arranged on the bell jar, and an annular cavity is further arranged in the bell jar so as to connect the sintering cavity and the quenching cavity;
the sintering chamber comprises: the feeding door, the discharging door, the bearing table arranged at the bottom of the sintering cavity and the heating element; a groove is formed in the bearing table, and the heating element is embedded in the groove and the inner wall of the sintering cavity; a thermocouple probe is also arranged in the sintering cavity and is connected with a heating temperature control system so as to monitor the temperature in the sintering cavity;
the quenching chamber includes: the cavity chamber door is communicated with the bell jar and the quenching cavity, the side wall door is used for taking out a quenched sample, the fork paddle device, and a plurality of supporting pins and profile sensors are arranged on a dome on the cavity; the quenching cavity is provided with an air inlet channel and an air outlet channel; fork oar device is fixed in the quenching intracavity, fork oar device includes: the fork paddle, and a sliding device and a telescopic device which respectively control the fork paddle to move up and down and stretch back and forth; the fork paddle moves and transfers the quenching sample on the groove into the quenching cavity; the supporting drill rod can stretch and retract; the fork paddle is of a U-shaped or V-shaped structure, and the fork paddle is matched with the groove in shape.
2. A sintering furnace with gas-phase quenching function according to claim 1, characterized in that: and the quenching cavity is also provided with a gas temperature regulator for regulating the temperature of introduced gas, an infrared temperature measuring probe for testing the temperature of the sample and a gas pressure gauge for monitoring the gas pressure of the quenching cavity.
3. A sintering furnace with gas-phase quenching function according to claim 1, characterized in that: the annular cavity is arranged on one side, close to the bell jar, of the cavity door, the shape of the annular cavity is consistent with that of the cavity door, and a vacuum pump is arranged in the annular cavity or a vacuum pipeline is arranged in the annular cavity to generate vacuum negative pressure.
4. The sintering furnace with gas phase quenching function according to claim 1, characterized in that: the profile sensor detects a sample surface profile, and the profile sensor delivers a sample profile signal to the height adjustment system.
5. The sintering furnace with gas phase quenching function according to claim 4, characterized in that: the height adjusting system independently adjusts the telescopic height of each supporting drill rod so as to match different sample sizes and abut against the samples.
6. The quenching process based on the sintering furnace with the gas phase quenching function as claimed in any one of claims 1 to 5, characterized by comprising the steps of:
s1, placing the sample above the groove of the sintering cavity bearing table, closing the bell jar door and introducing gas into the bell jar when the heating element heats the sample, so that the sintering cavity is in the atmosphere of the introduced gas, and monitoring the temperature and pressure parameters of the bell jar and the sintering cavity;
s2, after the sample is heated, when the sample needs to be quenched in a gas phase, opening a chamber door, and introducing gas with a preset temperature and a preset type into the quenching chamber;
s3, opening a discharge door of the sintering cavity upwards, moving the fork paddle up and down and stretching the fork paddle back and forth, so that the fork paddle extends into a groove of the bearing table, lifting the sample upwards, transferring the sample into the quenching cavity for gas phase quenching, and closing a cavity door when the sample completely enters the quenching cavity;
s4, adjusting the stretching height of each supporting drill rod according to the signal of the profile sensor so as to prop against the sample; the slewing device drives the quenching cavity to rotate by 0-360 degrees, after the gas phase quenching is carried out for a certain time, the slewing device adjusts the quenching cavity to rotate by a certain angle so as to adjust the placing posture of the sample, and after the gas phase quenching of the sample is finished, the sample is taken out through a side wall door of the quenching cavity.
7. The quenching process of claim 6, wherein: in S2, the chamber door is opened, and vacuum negative pressure is generated in the annular chamber to prevent the gas in the quenching chamber from flowing into the bell jar and the sintering chamber.
8. The quenching process of claim 6, wherein: by controlling the temperature and pressure parameters of the gas introduced into the quenching cavity, the technological parameters with wider temperature range can be set, so that the high-temperature sample is directly placed in the gas atmosphere at-150-800 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478793.XA CN112556426B (en) | 2020-12-15 | 2020-12-15 | Sintering furnace with gas-phase quenching function and quenching process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478793.XA CN112556426B (en) | 2020-12-15 | 2020-12-15 | Sintering furnace with gas-phase quenching function and quenching process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112556426A CN112556426A (en) | 2021-03-26 |
| CN112556426B true CN112556426B (en) | 2022-08-23 |
Family
ID=75063721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011478793.XA Active CN112556426B (en) | 2020-12-15 | 2020-12-15 | Sintering furnace with gas-phase quenching function and quenching process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112556426B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985052A (en) * | 2021-04-09 | 2021-06-18 | 江西科技学院 | Tunnel type continuous sintering furnace and sintering method thereof |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190511A (en) * | 1984-03-13 | 1985-09-28 | Ishikawajima Harima Heavy Ind Co Ltd | Heat treating installation for metal |
| JPS60248917A (en) * | 1984-05-24 | 1985-12-09 | Matsushita Electric Ind Co Ltd | Kerosene combustion appratus |
| KR970015757A (en) * | 1995-09-06 | 1997-04-28 | 전성원 | High Vacuum Sintering and Heat Treatment Equipment |
| CN2428745Y (en) * | 2000-06-06 | 2001-05-02 | 杨胜天 | Vacuum sintering gas quenching furnace |
| WO2005123970A1 (en) * | 2004-06-15 | 2005-12-29 | Narasimhan Gopinath | A process and device for hardening metal parts |
| CN201173692Y (en) * | 2008-03-10 | 2008-12-31 | 陈明 | Integral device for metal and alloy pressurized sintering and quenching |
| KR101463357B1 (en) * | 2013-11-08 | 2014-11-19 | 주식회사 포스코 | Feeding apparatus of sintered ore with dispersing function for sintering cooler |
| CN106643131A (en) * | 2016-10-20 | 2017-05-10 | 北京华海中谊节能科技股份有限公司 | Movable type vertical vacuum furnace structure |
| JP2017095756A (en) * | 2015-11-24 | 2017-06-01 | 住友電工焼結合金株式会社 | Sinter hardening method and sintering furnace for sinter hardening |
| CN207498415U (en) * | 2017-03-29 | 2018-06-15 | 天津市海泰真空设备有限公司 | A kind of efficient oil quenching gas cooling vacuum furnace |
| CN208829212U (en) * | 2018-09-17 | 2019-05-07 | 中际联合（北京）科技股份有限公司 | Profile limiting device on elevator |
| CN109839011A (en) * | 2019-02-15 | 2019-06-04 | 成昕 | A kind of continuous pallettype sintering machine tail machine vision Instructing manufacture process approach |
| CN209085290U (en) * | 2018-09-18 | 2019-07-09 | 吉凯恩(丹阳)工业有限公司 | A kind of powder metallurgy sintered hardening sintering furnace of stator production |
| CN209162135U (en) * | 2018-10-19 | 2019-07-26 | 爱协林热处理系统(北京)有限公司 | Large-scale workpiece is heat-treated transfer device |
| CN210180792U (en) * | 2019-05-27 | 2020-03-24 | 河南诺巴迪材料科技有限公司 | Atmosphere quenching hot-pressing workstation |
| CN111647724A (en) * | 2020-05-28 | 2020-09-11 | 合肥科晶材料技术有限公司 | Vertical high-temperature sintering gas quenching furnace |
| EP3748364A1 (en) * | 2019-06-05 | 2020-12-09 | Roche Diagnostics GmbH | Gripping device for handling sample containers and analytical instrument |
| CN213984508U (en) * | 2020-12-15 | 2021-08-17 | 江西科技学院 | Atmosphere sintering furnace structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817084A (en) * | 1972-11-17 | 1974-06-18 | Nasa | Apparatus for inserting and removing specimens from high temperature vacuum furnaces |
| US4009872A (en) * | 1976-06-25 | 1977-03-01 | Alco Standard Corporation | Energy-conserving, fast-cooling heat treating furnace |
| US5121903A (en) * | 1991-03-11 | 1992-06-16 | Vacuum Furnace Systems Corporation | Quenching arrangement for a furnace |
| CN2550710Y (en) * | 2002-07-05 | 2003-05-14 | 河南环宇实业投资有限公司 | Sealing furnace |
| TWI257428B (en) * | 2004-05-10 | 2006-07-01 | Hirohisa Taniguchi | Continuous heat treatment system for metal and carburization gas-quenching method |
| FR2880898B1 (en) * | 2005-01-17 | 2007-05-11 | Const Mecaniques Sa Et | GAS CUTTING CELL FOR STEEL PARTS |
| US8192080B2 (en) * | 2007-01-23 | 2012-06-05 | Tsi Technologies Llc | Microwire-controlled autoclave and method |
| FR3015918A1 (en) * | 2013-12-31 | 2015-07-03 | Roctool | DEVICE FOR HEATING A MOLD |
-
2020
- 2020-12-15 CN CN202011478793.XA patent/CN112556426B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190511A (en) * | 1984-03-13 | 1985-09-28 | Ishikawajima Harima Heavy Ind Co Ltd | Heat treating installation for metal |
| JPS60248917A (en) * | 1984-05-24 | 1985-12-09 | Matsushita Electric Ind Co Ltd | Kerosene combustion appratus |
| KR970015757A (en) * | 1995-09-06 | 1997-04-28 | 전성원 | High Vacuum Sintering and Heat Treatment Equipment |
| CN2428745Y (en) * | 2000-06-06 | 2001-05-02 | 杨胜天 | Vacuum sintering gas quenching furnace |
| WO2005123970A1 (en) * | 2004-06-15 | 2005-12-29 | Narasimhan Gopinath | A process and device for hardening metal parts |
| CN201173692Y (en) * | 2008-03-10 | 2008-12-31 | 陈明 | Integral device for metal and alloy pressurized sintering and quenching |
| KR101463357B1 (en) * | 2013-11-08 | 2014-11-19 | 주식회사 포스코 | Feeding apparatus of sintered ore with dispersing function for sintering cooler |
| JP2017095756A (en) * | 2015-11-24 | 2017-06-01 | 住友電工焼結合金株式会社 | Sinter hardening method and sintering furnace for sinter hardening |
| CN106643131A (en) * | 2016-10-20 | 2017-05-10 | 北京华海中谊节能科技股份有限公司 | Movable type vertical vacuum furnace structure |
| CN207498415U (en) * | 2017-03-29 | 2018-06-15 | 天津市海泰真空设备有限公司 | A kind of efficient oil quenching gas cooling vacuum furnace |
| CN208829212U (en) * | 2018-09-17 | 2019-05-07 | 中际联合（北京）科技股份有限公司 | Profile limiting device on elevator |
| CN209085290U (en) * | 2018-09-18 | 2019-07-09 | 吉凯恩(丹阳)工业有限公司 | A kind of powder metallurgy sintered hardening sintering furnace of stator production |
| CN209162135U (en) * | 2018-10-19 | 2019-07-26 | 爱协林热处理系统(北京)有限公司 | Large-scale workpiece is heat-treated transfer device |
| CN109839011A (en) * | 2019-02-15 | 2019-06-04 | 成昕 | A kind of continuous pallettype sintering machine tail machine vision Instructing manufacture process approach |
| CN210180792U (en) * | 2019-05-27 | 2020-03-24 | 河南诺巴迪材料科技有限公司 | Atmosphere quenching hot-pressing workstation |
| EP3748364A1 (en) * | 2019-06-05 | 2020-12-09 | Roche Diagnostics GmbH | Gripping device for handling sample containers and analytical instrument |
| CN111647724A (en) * | 2020-05-28 | 2020-09-11 | 合肥科晶材料技术有限公司 | Vertical high-temperature sintering gas quenching furnace |
| CN213984508U (en) * | 2020-12-15 | 2021-08-17 | 江西科技学院 | Atmosphere sintering furnace structure |
Non-Patent Citations (2)
| Title |
|---|
| 真空/压力烧结淬火一体化装置的研究;吕小军等;《硬质合金》;20130615(第03期);全文 * |
| 高速钢的真空高压气体淬火;王美琪等;《真空》;19900515(第03期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112556426A (en) | 2021-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112556426B (en) | Sintering furnace with gas-phase quenching function and quenching process thereof | |
| JP2006150453A (en) | Method for adjusting flow rate through metallurgical vessel and bottom part nozzle of metallurgical vessel | |
| CN106643131B (en) | A kind of mobile vertical vacuum furnace structure | |
| CN213984508U (en) | Atmosphere sintering furnace structure | |
| CN207335431U (en) | A kind of vacuum degreasing fritting furnace | |
| CN108405855A (en) | It is a kind of to be used for metal powder injection molded degreasing sintered stove | |
| CN109293227B (en) | Heat treatment apparatus and heat treatment method | |
| KR20100058210A (en) | Substrate processing apparatus | |
| CN115060073A (en) | Super-huge type ceramic component high-temperature atmosphere sintering furnace and sintering method thereof | |
| CN208261850U (en) | It is a kind of for metal powder injection molded degreasing sintered furnace | |
| CN216745382U (en) | Vacuum baking sintering furnace | |
| CN216482236U (en) | Integrated heating furnace body | |
| CN114061318B (en) | Hot-pressed sintering device and method | |
| JP2766856B2 (en) | Vertical pressure oxidation equipment | |
| CN113430340A (en) | System capable of realizing material quenching experiment in air | |
| CN217005368U (en) | Slow cooling device for microwave high-temperature push plate kiln | |
| CN205473926U (en) | Original mounting is gone back in succession to microwave | |
| CN111239179A (en) | High polymer material glass transition temperature pretreatment equipment | |
| CN218951561U (en) | Linkage lifting mechanism applied to vertical epitaxial equipment | |
| CN205505756U (en) | Anti -oxidation cooler of liquid seal formula high temperature | |
| JPH0829067A (en) | Vertical baking furnace | |
| CN216192554U (en) | High-temperature feeding and discharging auxiliary device of heat treatment furnace | |
| CN207113570U (en) | A kind of vacuum sintering furnace | |
| CN215598056U (en) | Two-way atmosphere silicon nitride sintering furnace | |
| CN215952181U (en) | Double-temperature-zone hot isostatic pressing furnace with swinging function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |