CN212299885U

CN212299885U - Novel hard alloy sintering furnace

Info

Publication number: CN212299885U
Application number: CN202020348824.9U
Authority: CN
Inventors: 李望梅; 何国安
Original assignee: Heyuan Puyi Cemented Carbide Plant Co ltd
Current assignee: Heyuan Puyi Cemented Carbide Plant Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2021-01-05
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a novel carbide fritting furnace, including horizontal cylindric furnace body and with the sealing door of the opening part adaptation of furnace body, be equipped with controlling means on the sealing door, the furnace body is by outer to interior vacuum layer that has set gradually, zone of heating and graphite layer, the zone of heating comprises electric heating wire, electric heating wire spiral coils at the surface on graphite layer, the bottom of furnace body is equipped with horizontal distribution's linear guide, install linear electric motor on the linear guide, linear electric motor includes primary module and secondary module, primary module fixed mounting is on linear guide, the lower part fixed connection of secondary module and sealing door, the inboard of sealing door is equipped with the support frame that stretches into in the furnace body inner chamber, linear electric motor and electric heating wire electric connection respectively to controlling means. The utility model discloses a horizontal furnace body, the sealing door that opens and shuts is steadily driven through horizontal distribution's linear electric motor, realizes steadily getting and puts the sintering work piece.

Description

Novel hard alloy sintering furnace

Technical Field

The utility model relates to a fritting furnace technical field especially relates to a novel carbide fritting furnace.

Background

Sintering furnaces refer to specialized equipment that allows powder compacts to be sintered to achieve desired physical, mechanical properties, and microstructures. When the sintered workpiece passes through the sintering process, the furnace body of the sintering furnace needs to be opened firstly, the sintered workpiece is placed into the furnace, then the furnace body of the sintering furnace is covered, the sintering process is started, and when the furnace body of the sintering furnace adopts a cylinder lifting device or a lead screw lifting device, because the dead weight of the furnace body is heavy, the lifting device is easily damaged in the lifting process of the furnace body, the production is influenced, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel carbide fritting furnace adopts horizontal furnace body, opens and shuts the sealing door through linear electric motor drive and realizes steadily getting and put the sintering work piece, has solved among the prior art lift furnace body fragile elevating gear and has influenced the problem of production.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel carbide fritting furnace, including horizontal cylindric furnace body and with the sealing door of the opening part adaptation of furnace body, be equipped with controlling means on the sealing door, the furnace body is by outer to interior vacuum layer, zone of heating and the graphite layer of having set gradually, the zone of heating comprises electric heating wire, electric heating wire spiral coils in the surface on graphite layer, the bottom of furnace body is equipped with horizontal distribution's linear guide, install linear electric motor on the linear guide, linear electric motor includes primary module and secondary module, primary module fixed mounting be in linear guide is last, secondary module with the lower part fixed connection of sealing door, the inboard of sealing door is equipped with stretches into support bracket in the furnace body inner chamber, linear electric motor with electric heating wire electric connection respectively to controlling means.

Further, an air pump and an air blower are arranged in the sealing door, the input end of the air pump is communicated with the inner side of the sealing door through a first pipeline, the output end of the air pump is communicated with the outer side of the sealing door through a second pipeline, the input end of the air blower is communicated with the outer side of the sealing door through a third pipeline, the output end of the air blower is communicated with the inner side of the sealing door through a fourth pipeline, and the air pump and the air blower are respectively and electrically connected to the control device. Can all take out the vapor after preheating in the furnace body through the aspiration pump, do not contain steam in the furnace body when having ensured the heating for the quality of product processing is higher, has improved the practicality of this device. Meanwhile, the air pump can be used for forming a vacuum pumping effect in the furnace body, so that the product is in a vacuum environment, and vacuum sintering is realized. The air blower is used for inputting gas to balance air pressure after sintering is finished, and the air blower works together with the air pump to realize rapid cooling.

Further, be provided with discharge valve on the first pipeline, be provided with the admission valve on the fourth pipeline, discharge valve with admission valve electric connection respectively to controlling means.

Furthermore, a circulating water pipe is arranged inside the supporting bracket, the sealing door is provided with a water inlet pipe and a water outlet pipe, two ends of the circulating water pipe are respectively connected with the water inlet pipe and the water outlet pipe, the water inlet pipe is provided with a water inlet valve, and the water inlet valve is electrically connected to the control device. Through setting up circulating pipe, utilize the water-cooling mode, make the inside temperature of furnace body can descend fast after accomplishing the sintering process, improve work efficiency.

Further, a thermocouple sensor and a pressure sensor are installed on the inner side of the sealing door, and the thermocouple sensor and the pressure sensor are respectively and electrically connected to the control device. The thermocouple sensor and the pressure sensor are used for monitoring the pressure and the temperature in the furnace body in real time, and the information is fed back to the control device for processing, so that real-time regulation and control are achieved, and the safety of equipment is guaranteed.

Furthermore, the outer wall of sealing door is equipped with the air vent, the upper portion of sealing door is equipped with radiator fan with the inside heat exhaust of sealing door, radiator fan electric connection to controlling means. The heat dissipation in the sealing door is facilitated through the heat dissipation fan and the vent hole, and the overhigh temperature in the sealing door is avoided, so that the internally installed electric elements are protected.

Furthermore, the inboard of sealing door is equipped with the insulating layer, reduces the heat-conduction of high temperature heat to sealing door in the furnace body to reduce sealing door's temperature.

Furthermore, the control device also comprises a plurality of operating switches, and the operating switches are arranged on the outer side of the sealing door.

Compared with the prior art, the utility model provides a novel carbide fritting furnace possesses following beneficial effect:

the utility model adopts a horizontal furnace body, and the electric heating wire is spirally coiled on the outer surface of the graphite layer, so that the temperature of the furnace body can be rapidly increased; the graphite has strong heat-conducting property, so that the heat distribution of the furnace body is more uniform; the vacuum layer can well reduce the speed of the heat of the furnace body radiating to the outside, and improve the utilization rate of the heat, thereby reducing the power consumption of equipment; the opening and closing sealing door is stably driven by the linear motors which are horizontally distributed, and sintering workpieces are stably taken and placed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the sealing door of the present invention.

Reference numerals: 1. a furnace body; 11. a vacuum layer; 12. a heating layer; 121. an electric heating wire; 13. a graphite layer; 14. a linear guide rail; 2. a sealing door; 21. a support bracket; 211. a circulating water pipe; 22. a water inlet pipe; 221. a water inlet valve; 23. a water outlet pipe; 24. a vent hole; 25. a thermal insulation layer; 3. a control device; 31. an operating switch; 4. a linear motor; 41. a primary module; 42. a secondary module; 5. an air pump; 51. a first conduit; 52. a second conduit; 53. an exhaust valve; 6. a blower; 61. a third pipeline; 62. a fourth conduit; 63. an intake valve; 7. a thermocouple sensor; 8. a pressure sensor; 9. a heat dissipation fan.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the detailed embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides a novel hard alloy sintering furnace, which includes a horizontal cylindrical furnace body 1 and a sealing door 2 adapted to an opening of the furnace body 1, wherein the sealing door 2 is provided with a control device 3, the furnace body 1 is sequentially provided with a vacuum layer 11, a heating layer 12 and a graphite layer 13 from outside to inside, the heating layer 12 is composed of an electric heating wire 121, and the electric heating wire 121 is spirally wound on an outer surface of the graphite layer 13. Because the horizontal furnace body 1 is adopted, the electric heating wire 121 is spirally wound on the outer surface of the graphite layer 13, so that the temperature of the furnace body 1 can be rapidly increased; the graphite has strong heat-conducting property, so that the heat of the furnace body 1 is distributed more uniformly; the vacuum layer 11 can well reduce the radiating speed of the heat of the furnace body 1 to the outside, improve the utilization rate of the heat and further reduce the power consumption of equipment. The bottom of furnace body 1 is equipped with horizontal distribution's linear guide 14, installs linear motor 4 on the linear guide 14, and linear motor 4 includes primary module 41 and secondary module 42, and primary module 41 fixed mounting is on linear guide 14, and secondary module 42 and sealing door 2's lower part fixed connection, and sealing door 2's inboard is equipped with the support bracket 21 that stretches into in the furnace body 1 inner chamber, and linear motor 4 and electric heating wire 121 electric connection respectively to controlling means 3. The opening and closing sealing door 2 is stably driven by the linear motor 4 which is horizontally distributed, and sintering workpieces are stably taken and placed.

Be equipped with aspiration pump 5 and air-blower 6 in the sealing door 2, the input of aspiration pump 5 passes through the inboard of first pipeline 51 intercommunication sealing door 2, be provided with discharge valve 53 on the first pipeline 51, the output of aspiration pump 5 passes through the outside of second pipeline 52 intercommunication sealing door 2, the input of air-blower 6 passes through the outside of third pipeline 61 intercommunication sealing door 2, the output of air-blower 6 passes through the inboard of fourth pipeline 62 intercommunication sealing door 2, be provided with admission valve 63 on the fourth pipeline 62, discharge valve 53, admission valve 63, respectively electric connection to controlling means 3 of aspiration pump 5 and air-blower 6. Can all take out the vapor after preheating in the furnace body 1 through aspiration pump 5, do not contain steam in the furnace body 1 when having ensured the heating for the quality of product processing is higher, has improved the practicality of this device. Meanwhile, the air pump 5 can be used for forming a vacuum pumping effect in the furnace body 1, so that the product is in a vacuum environment, and vacuum sintering is realized. The blower 6 is used for inputting gas to balance air pressure after sintering is finished, and can be matched with the air pump 5 to work together to realize rapid cooling.

The inside of the support bracket 21 is provided with a circulating water pipe 211, the sealing door 2 is provided with a water inlet pipe 22 and a water outlet pipe 23, two ends of the circulating water pipe 211 are respectively connected with the water inlet pipe 22 and the water outlet pipe 23, the water inlet pipe 22 is provided with a water inlet valve 221, and the water inlet valve 221 is electrically connected to the control device 3. Through setting up circulating water pipe 211, utilize the water-cooling mode, make furnace body 1 inside temperature can descend fast after accomplishing the sintering process, improve work efficiency.

And a thermocouple sensor 7 and a pressure sensor 8 are installed on the inner side of the sealing door 2, and the thermocouple sensor 7 and the pressure sensor 8 are respectively and electrically connected to the control device 3. The thermocouple sensor 7 and the pressure sensor 8 are used for monitoring the pressure and the temperature inside the furnace body 1 in real time, and feeding back information to the control device 3 for processing, so that real-time regulation and control are achieved and equipment safety is guaranteed.

The outer wall of sealing door 2 is equipped with air vent 24, and the upper portion of sealing door 2 is equipped with radiator fan 9 with inside heat outgoing of sealing door 2, and radiator fan 9 electric connection is to controlling means 3. The heat dissipation in the sealing door 2 is facilitated by the heat dissipation fan 9 and the vent hole 24, and excessive temperature in the sealing door 2 is avoided, thereby protecting the electric components mounted inside.

The control device 3 further comprises a plurality of operating switches 31, the operating switches 31 being arranged on the outer side of the sealing door 2. The electric heating wire 121, the linear motor 4, the water inlet valve 221, the air suction pump 5, the air discharge valve 53, the blower 6, the air inlet valve 63, and the heat radiation fan 9 can be turned on and off and adjusted by the respective operation switches 31.

The inner side of the sealing door 2 is provided with a heat insulation layer 25, which reduces the heat conduction of high-temperature heat in the furnace body 1 to the sealing door 2, so as to reduce the temperature of the sealing door 2.

In addition, for the convenience of observation or adjustment, a gauge panel (not shown) or other components may be disposed on the sealing door 2 to monitor the operation state of each device during operation. The instrument panel can be provided with parameter displays such as temperature, pressure, power supply indication, electric heating wire operation, linear motor operation, air pump operation, blower operation, cooling fan operation, stop button and reset, etc. in the furnace body.

When in use, a workpiece to be sintered is placed on the support bracket 21, the corresponding operating switch 31 is pressed to start the linear motor 4, and the sealing door 2 is closed smoothly. Then, the electric heating wire 121 is energized to start heating, and the air suction pump 5 and the air discharge valve 53 are started to discharge the water vapor in the furnace body 1 in time. After the sintering process is completed, the electric heating wire 121 is cut off to stop sintering, the air blower 6 and the air inlet valve 63 are started to input air for cooling, the water inlet valve 221 is opened at the same time, and external cold water is cooled rapidly in a water cooling mode through the circulating water pipe 211 in the furnace body 1. Meanwhile, the heat dissipation fan 9 can timely discharge the heat inside the sealing door 2 to the outside to protect the electrical components inside the sealing door 2. And finally, after the temperature of the inner cavity of the furnace body 1 is reduced, the sealing door 2 is opened again and stably through the linear motor 4, and the workpiece is taken down.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel hard alloy sintering furnace comprises a horizontal cylindrical furnace body (1) and a sealing door (2) matched with an opening of the furnace body, wherein a control device (3) is arranged on the sealing door (2), the novel hard alloy sintering furnace is characterized in that the furnace body (1) is sequentially provided with a vacuum layer (11), a heating layer (12) and a graphite layer (13) from outside to inside, the heating layer (12) is composed of an electric heating wire (121), the electric heating wire (121) is spirally wound on the outer surface of the graphite layer (13), the bottom of the furnace body (1) is provided with a linear guide rail (14) which is horizontally distributed, a linear motor (4) is installed on the linear guide rail (14), the linear motor (4) comprises a primary module (41) and a secondary module (42), the primary module (41) is fixedly installed on the linear guide rail (14), the secondary module (42) is fixedly connected with the lower part of the sealing door (2), the inner side of the sealing door (2) is provided with a support bracket (21) extending into the inner cavity of the furnace body (1), and the linear motor (4) and the electric heating wire (121) are respectively and electrically connected to the control device (3).

2. The novel cemented carbide sintering furnace according to claim 1, characterized in that an air pump (5) and a blower (6) are arranged in the sealing door (2), the input end of the air pump (5) is communicated with the inner side of the sealing door (2) through a first pipeline (51), the output end of the air pump (5) is communicated with the outer side of the sealing door (2) through a second pipeline (52), the input end of the blower (6) is communicated with the outer side of the sealing door (2) through a third pipeline (61), the output end of the blower (6) is communicated with the inner side of the sealing door (2) through a fourth pipeline (62), and the air pump (5) and the blower (6) are respectively and electrically connected to the control device (3).

3. The new cemented carbide sintering furnace according to claim 2, characterized in that an exhaust valve (53) is arranged on the first pipe (51), an intake valve (63) is arranged on the fourth pipe (62), the exhaust valve (53) and the intake valve (63) are electrically connected to the control device (3), respectively.

4. The novel hard alloy sintering furnace according to claim 1, wherein a circulating water pipe (211) is arranged inside the supporting bracket (21), the sealing door (2) is provided with a water inlet pipe (22) and a water outlet pipe (23), two ends of the circulating water pipe (211) are respectively connected with the water inlet pipe (22) and the water outlet pipe (23), the water inlet pipe (22) is provided with a water inlet valve (221), and the water inlet valve (221) is electrically connected to the control device (3).

5. The new cemented carbide sintering furnace according to claim 1, characterized in that inside of the sealing door (2) is mounted a thermocouple sensor (7) and a pressure sensor (8), the thermocouple sensor (7) and the pressure sensor (8) being electrically connected to the control device (3), respectively.

6. The novel hard alloy sintering furnace according to any one of claims 1 to 5, characterized in that the outer wall of the sealing door (2) is provided with a vent hole (24), the upper part of the sealing door (2) is provided with a cooling fan (9) for discharging the heat inside the sealing door (2), and the cooling fan (9) is electrically connected to the control device (3).

7. The new cemented carbide sintering furnace according to claim 6, characterized in that the inside of the sealing door (2) is provided with a heat insulation layer (25).

8. The new cemented carbide sintering furnace according to claim 7, characterized in that the control device (3) further comprises several operation switches (31), which operation switches (31) are arranged outside the sealing door (2).