CN213020918U

CN213020918U - Bottom discharge high-temperature sintering furnace

Info

Publication number: CN213020918U
Application number: CN202021824102.2U
Authority: CN
Inventors: 龚红平; 龚鹏; 谢真
Original assignee: Zhuzhou Guangjichang Technology Co ltd
Current assignee: Zhuzhou Guangjichang Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-04-20
Anticipated expiration: 2030-08-27

Abstract

The utility model provides a lower ejection of compact high temperature fritting furnace, be in including support frame and setting fritting furnace on the support frame, fritting furnace with the one end that the support frame is connected is equipped with into discharge gate, be equipped with elevating system on the support frame, the last sintering platform that is equipped with of elevating system, elevating system can with the sintering platform passes through into discharge gate is carried in the fritting furnace. Compared with the prior art, the utility model provides an it improves sintering temperature of lower ejection of compact high temperature fritting furnace, and the suitability is strong, and sintering effect is good.

Description

Bottom discharge high-temperature sintering furnace

Technical Field

The utility model relates to a stove technical field especially relates to a bottom discharge high temperature fritting furnace.

Background

The vacuum sintering furnace is an advanced heat treatment device, and can be used for carrying out various heat treatments of metal materials and workpieces, such as vacuum heating, quenching, tempering, annealing, carburizing, nitriding, pressurized gas quenching and the like, wherein the vacuum heat treatment process can obviously improve the performance of the treated materials and workpieces, and the materials are fully utilized.

For preventing the part deformation and other problems caused by the material expansion difference due to the nonuniform temperature, the problem that the heat loss and the poor heat preservation effect exist in the support column arranged at the bottom of the heating chamber of the existing vacuum high-temperature furnace and the glue discharging pipeline connected with the hearth, so that the local temperature of the heating chamber is nonuniform, the thermal stability of the heating chamber of the vacuum furnace is influenced, and the production quality of the processed part in the furnace is reduced.

Therefore, there is a need to provide a new type of low-discharging high-temperature sintering furnace to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel lower ejection of compact high temperature fritting furnace, it improves sintering temperature, and the suitability is strong, and sintering effect is good.

In order to achieve the aim, the utility model provides a bottom discharge high temperature fritting furnace, be in including support frame and setting fritting furnace on the support frame, the fritting furnace with the one end that the support frame is connected is equipped with into discharge gate, be equipped with elevating system on the support frame, the last sintering platform that is equipped with of elevating system, elevating system can with the sintering platform passes through into discharge gate carries in the fritting furnace.

Furthermore, the lifting mechanism comprises driving motors arranged on two sides of the support frame, a connecting shaft rod for connecting the two driving motors, lifting screw rods connected with output shafts of the two driving motors, a lifting plate arranged between the two lifting screw rods and a buffer seat arranged on the lifting plate.

Further, the sintering platform with the buffer seat is fixed to be set up, the buffer seat include with bottom plate, connection that the lifter plate parallel interval set up the bottom plate with the guide post and the cover of lifter plate are established the elastic component of guide post outside circumference.

Furthermore, the sintering furnace comprises a furnace body, a heat insulation plate arranged at the bottom end of the furnace body, a medium-frequency induction coil arranged on the heat insulation plate and a heat insulation layer arranged in the medium-frequency induction coil.

Further, the material inlet and the material outlet are arranged at the central part of the heat insulation plate, a containing cavity is arranged in the heat insulation layer, and the containing cavity is used for containing the sintering table.

Further, the section of the sintering table is in a taper step shape, and the sintering table comprises a first platform, a second platform arranged below the first platform, a first conical section connected with the first platform and the second platform, a third platform arranged below the second platform, and a second conical section connected with the second platform and the third platform.

Further, be equipped with the cross-section in the heat preservation and be trapezoidal bulge loop, the bulge loop certainly the heat preservation layer to the holding chamber extends, first conic section with the bulge loop butt, second conic section with business turn over material mouthful butt.

Further, one side of the sintering furnace is provided with a vacuum valve and a vacuum generator connected with the vacuum valve.

Compared with the prior art, the lower discharging high-temperature sintering furnace has the advantages that the medium-frequency induction heating is adopted, so that the purification temperature is high, the purification effect is good, and the applicability is strong; the lower discharging taper sealing is adopted, so that the charging and the discharging are convenient, and the sealing and heat preservation effects are good; meanwhile, the buffer seat is adopted to ensure the pressure sealing between the sintering table and the furnace body and ensure the vacuum environment in the furnace body.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic structural diagram of the low-discharging high-temperature sintering furnace of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the utility model provides a lower ejection of compact high temperature fritting furnace, including support frame 1 and set up fritting furnace 2 on support frame 1, fritting furnace 2 with the one end that support frame 1 is connected is equipped with into discharge gate 3, be equipped with elevating system 4 on the support frame 1, be equipped with sintering platform 5 on elevating system 4, elevating system 4 can with sintering platform 5 passes through into discharge gate 3 and carries in the fritting furnace 1.

The lifting mechanism 4 comprises driving motors 41 arranged on two sides of the support frame 1, a connecting rod 42 connected with the two driving motors 41, lifting screws 43 connected with output shafts of the two driving motors 41, a lifting plate 44 arranged between the two lifting screws 43, and a buffer seat 45 arranged on the lifting plate 44. The lifting screw 43 is a ball screw, the lifting plate 44 is connected with a lifting nut of the ball screw, and the driving motor 41 drives the lifting screw 43 to drive the lifting plate 44 to move along the guiding direction of the lifting screw, that is, the lifting screw 43 extends along the direction of the support frame 1 perpendicular to the ground.

The sintering table 5 and the buffer seat 45 are fixedly arranged, and the buffer seat 45 is used for providing a buffer force for the sintering table 5 and providing a reverse acting force at the same time, so that the sealing performance of the sintering table 5 and the sintering furnace 2 is ensured.

The buffer base 45 includes a bottom plate 451 spaced apart from and parallel to the elevating plate 44, a guide post 452 connecting the bottom plate 451 and the elevating plate 44, and an elastic member 453 fitted around the outer circumference of the guide post 452. The base plate 451 is used for providing supporting and fixing functions, the guide column 452 is used for limiting and guiding the base plate 451, and the elastic member 453 is a spring used for providing elastic supporting force so as to play a role in buffering and providing a reverse acting force.

The sintering furnace 2 comprises a furnace body 21, a heat insulation plate 22 arranged at the bottom end of the furnace body 21, a medium-frequency induction coil 23 arranged on the heat insulation plate 22, and a heat insulation layer 24 arranged in the medium-frequency induction coil 23. The material inlet and outlet 3 is arranged at the central part of the heat insulation plate 22, an accommodating cavity 240 is arranged in the heat insulation layer 24, and the accommodating cavity 240 is used for accommodating the sintering table 5.

The medium-frequency induction heating mode is adopted, the highest temperature can reach 3200 ℃, the sintering furnace can be used for sintering graphite materials and carbon materials in atmosphere or vacuum and sintering ceramic high-temperature-resistant materials, and a lower discharging structure is adopted, so that the charging and the discharging are convenient.

The section of the sintering table 5 is in a taper step shape, taper contact can be formed by adopting a taper sealing mode, no gap exists between the furnace body and the sintering table, and high-temperature leakage is prevented from damaging other parts.

The sintering table 5 includes a first platform 51, a second platform 52 disposed below the first platform 51, a first tapered section 53 connecting the first platform 51 and the second platform 52, a third platform 54 disposed below the second platform 52, and a second tapered section 55 connecting the second platform 52 and the third platform 54.

Be equipped with in the heat preservation 24 and be trapezoidal bulge loop 241 in cross-section, bulge loop 241 certainly heat preservation 24 to holding chamber 240 extends and forms, first conic section 53 with bulge loop 241 butt, bulge loop 241 is close to one side of business turn over material mouth 3 is the inclined plane setting, the angle of its slope with the tapering of first conic section is unanimous.

The second conical section 55 abuts against the material inlet/outlet 3, and one side of the heat insulation board 22 away from the accommodating cavity 240 is also arranged in an inclined plane, and the inclined angle of the inclined plane is consistent with the taper of the second conical section. The convex ring 241 is spaced from the heat insulation plate 22 by a certain distance, so that the convex ring 241, the heat insulation layer 24 and the heat insulation plate 22 form a structure matched with the section of the sintering table in a taper step shape, and the sealing performance is improved.

And a vacuum valve 6 and a vacuum generator 7 connected with the vacuum valve 6 are arranged on one side of the sintering furnace 2. The vacuum valve 6 is connected with the vacuum generator 7 through a pipeline so as to ensure the vacuum environment in the sintering furnace.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A lower discharge high-temperature sintering furnace is characterized in that: the sintering furnace is arranged on the support frame, a material inlet and a material outlet are formed in one end, connected with the support frame, of the sintering furnace, a lifting mechanism is arranged on the support frame, a sintering table is arranged on the lifting mechanism, and the lifting mechanism can convey the sintering table into the sintering furnace through the material inlet and the material outlet.

2. The bottom discharge high temperature sintering furnace of claim 1, wherein: the lifting mechanism comprises driving motors arranged on two sides of the supporting frame, a connecting shaft rod for connecting the two driving motors, lifting screw rods connected with output shafts of the two driving motors, a lifting plate arranged between the two lifting screw rods and a buffer seat arranged on the lifting plate.

3. The bottom discharge high temperature sintering furnace of claim 2, wherein: the sintering platform with the buffer seat is fixed to be set up, the buffer seat include with bottom plate, connection that the lifter plate parallel interval set up the bottom plate with the guide post and the cover of lifter plate are established the elastic component of guide post outside circumference.

4. The bottom discharge high temperature sintering furnace of claim 3, wherein: the sintering furnace comprises a furnace body, a heat insulation plate arranged at the bottom end of the furnace body, a medium-frequency induction coil arranged on the heat insulation plate and a heat insulation layer arranged in the medium-frequency induction coil.

5. The bottom discharge high temperature sintering furnace of claim 4, wherein: the material inlet and the material outlet are arranged at the central part of the heat insulation plate, a containing cavity is arranged in the heat insulation layer, and the containing cavity is used for containing the sintering table.

6. The bottom discharge high temperature sintering furnace of claim 5, wherein: the section of the sintering table is in a taper step shape, and the sintering table comprises a first platform, a second platform arranged below the first platform, a first taper section connected with the first platform and the second platform, a third platform arranged below the second platform, and a second taper section connected with the second platform and the third platform.

7. The lower discharge high temperature sintering furnace of claim 6, wherein: be equipped with the cross-section in the heat preservation and be trapezoidal bulge loop, the bulge loop certainly the heat preservation layer to the holding chamber extends, first conic section with the bulge loop butt, second conic section with business turn over material mouth butt.

8. The bottom discharge high temperature sintering furnace of claim 1, wherein: and one side of the sintering furnace is provided with a vacuum valve and a vacuum generator connected with the vacuum valve.