CN112033154A

CN112033154A - High vacuum alloy casting furnace with mechanical stirring function

Info

Publication number: CN112033154A
Application number: CN202010833862.8A
Authority: CN
Inventors: 朱沫浥; 邾根祥; 王冲; 安唐林
Original assignee: Hefei Kejing Materials Technology Co ltd
Current assignee: Hefei Kejing Materials Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2020-12-04

Abstract

The invention discloses a high-vacuum alloy casting furnace with mechanical stirring, which relates to the field of casting furnaces and comprises a fixed base, wherein the top of the fixed base is fixedly connected with a smelting cavity, the front end surface of the smelting cavity is rotatably connected with a sealing cover plate, an induction heating ring is fixedly connected in the smelting cavity, the side wall of the smelting cavity is welded with a fixed frame, an electrode flange is fixedly connected in the fixed frame and is connected with the induction heating ring, the top end of the smelting cavity is fixedly connected with a feeding hole, the top end of the feeding hole is provided with a stirring stepping motor, the output end of the stirring stepping motor is connected with an optical axis, and one end of the optical axis, which is far away from the stirring stepping motor, penetrates through. The stirring paddle is driven by the stepping motor with large torque and small appearance, so that the stirring paddle can be stirred in molten metal with high viscosity, and meanwhile, the boron nitride ceramic material is adopted, so that the stirring paddle can be stirred at 1700 ℃, and the material is not adhered, so that the processing cost is greatly reduced.

Description

High vacuum alloy casting furnace with mechanical stirring function

Technical Field

The invention relates to the field of casting furnaces, in particular to a high-vacuum alloy casting furnace with a mechanical stirring function.

Background

With the rapid development of modern industrial technology, people have higher and higher requirements on the use of mechanical parts, and increasingly severe use environments have higher requirements on the performances of high temperature resistance, wear resistance, fatigue resistance and the like of metal materials. For some specific metal alloy materials, whether the early development and test or the later mass production and use, metal smelting and casting equipment is required for researching or obtaining the high-performance metal alloy materials.

However, the existing metal smelting and casting equipment has a complex structure, the production cost is increased, and casting materials are often unevenly distributed in the smelting and casting process of alloy material samples, so that defective products are generated.

Disclosure of Invention

In order to solve the defects in the prior art, the invention aims to provide a high-vacuum belt mechanical stirring alloy casting furnace, which is driven by a large-torque small-appearance stepping motor, ensures that a stirring paddle can stir in molten metal with high viscosity, adopts a boron nitride ceramic material, can stir at 1700 ℃ and is not sticky, and greatly reduces the processing cost compared with the traditional iridium oxide stirring paddle.

The purpose of the invention can be realized by the following technical scheme:

a high-vacuum alloy casting furnace with mechanical stirring comprises a fixed base, wherein the top of the fixed base is fixedly connected with a smelting cavity, the front end surface of the smelting cavity is rotatably connected with a sealing cover plate, an induction heating ring is fixedly connected in the smelting cavity, a fixed frame is welded on the side wall of the smelting cavity, an electrode flange is fixedly connected in the fixed frame, and the electrode flange is connected with the induction heating ring;

smelt the top fixedly connected with feed inlet of cavity, the top of feed inlet is provided with stirring step motor, and stirring step motor's output is connected with the optical axis, and in the one end that stirring step motor was kept away from to the optical axis ran through the top of smelting the cavity and stretched into and smelt the cavity, the one end fixedly connected with boron nitride stirring rake in the optical axis was located and smelt the cavity, and the rear end of smelting the cavity and keeping away from sealed apron is provided with the vacuum port.

Furthermore, the surface of the sealing cover plate is embedded with a quartz observation window, and the outer side wall of the sealing cover plate, which is far away from the smelting cavity, is welded with a fixed handle.

Further, the top of the feed inlet is fixedly connected with a secondary feeding reserved opening.

Furthermore, the top of the feed inlet is provided with a lifting mechanism, and the stirring stepping motor is fixed on the surface of the lifting mechanism.

Further, elevating system includes the motor fixed bolster, and the top fixedly connected with lift step motor of motor fixed bolster, the inner chamber of motor fixed bolster rotates and is connected with ball screw, and lift step motor's output runs through the top of motor fixed bolster and is connected with ball screw, and ball screw's surface screw links to each other has ball bearing, and stirring step motor and ball bearing fixed connection.

Further, the surface cover of optical axis is equipped with JO type combination sealing washer, and JO type combination sealing washer is located the top surface of feed inlet.

The invention has the beneficial effects that:

1. the invention adopts a single-layer structure without a water cooling layer, greatly reduces the processing cost, adopts a Wilson sealing structure, manually controls the casting and turning process, can ensure the vacuum degree and solves the instability of the silica gel O-shaped ring;

2. the invention adopts the large-torque stepping motor with smaller appearance to drive, ensures that the stirring paddle can stir in the metal liquid with larger viscosity, adopts the mechanical stirring paddle and the boron nitride ceramic material, can stir at 1700 ℃, is not sticky, and greatly reduces the processing cost compared with the traditional iridium oxide stirring paddle.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a side view of the present invention.

In the figure: 1. a fixed base; 2. a smelting cavity; 3. sealing the cover plate; 31. a quartz observation window; 32. fixing a handle; 4. fixing the frame; 5. an induction heating coil; 6. an electrode flange; 7. a feed inlet; 8. a stirring stepping motor; 9. an optical axis; 10. a boron nitride stirring paddle; 11. a secondary feeding reserved opening; 12. a lifting mechanism; 121. a motor fixing bracket; 122. a lifting stepping motor; 123. a ball screw; 124. a ball bearing; 13. JO type combined sealing ring; 14. a vacuum port.

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 description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

The utility model provides a high vacuum takes mechanical stirring alloy casting furnace, as shown in fig. 1 and 2, including unable adjustment base 1, unable adjustment base 1's top fixedly connected with smelts cavity 2, and the front end surface of smelting cavity 2 rotates and is connected with sealed apron 3, smelts fixedly connected with induction heating circle 5 in the cavity 2, and the lateral wall welding of smelting cavity 2 has fixed frame 4, fixedly connected with electrode flange 6 in the fixed frame 4, and electrode flange 6 is connected with induction heating circle 5.

The surface of the sealing cover plate 3 is embedded with a quartz observation window 31, the condition inside the smelting cavity 2 can be observed, and the outer side wall of the sealing cover plate 3 far away from the smelting cavity 2 is welded with a fixed handle 32.

As shown in fig. 2 and 3, smelt the top fixedly connected with feed inlet 7 of cavity 2, the top of feed inlet 7 is provided with stirring step motor 8, stirring step motor 8's output is connected with optical axis 9, the one end that stirring step motor 8 was kept away from to optical axis 9 runs through the top of smelting cavity 2 and stretches into in smelting cavity 2, optical axis 9 is located the one end fixedly connected with boron nitride stirring rake 10 of smelting cavity 2, boron nitride stirring rake 10 is located induction heating circle 5 directly over, the rear end of smelting cavity 2 and keeping away from sealed apron 3 is provided with vacuum port 14.

Mouth 11 is reserved in the top fixedly connected with secondary feeding of feed inlet 7, and according to the experiment of difference, its reinforced order and reinforced time diverse consequently, need reserve a charge door, be convenient for at the stirring in-process, continue to add the raw materials.

The top of feed inlet 7 is provided with elevating system 12, and stirring step motor 8 is fixed in elevating system 12's surface, and elevating system 12 can drive stirring step motor 8 and do elevating movement for boron nitride stirring rake 10 can stretch into and stir in induction heating circle 5.

The lifting mechanism 12 comprises a motor fixing support 121, a lifting stepping motor 122 is fixedly connected to the top of the motor fixing support 121, a ball screw 123 is rotatably connected to the inner cavity of the motor fixing support 121, the output end of the lifting stepping motor 122 penetrates through the top of the motor fixing support 121 to be connected with the ball screw 123, a ball bearing 124 is connected to the surface of the ball screw 123 in a threaded manner, and the stirring stepping motor 8 is fixedly connected with the ball bearing 124.

The surface cover of optical axis 9 is equipped with JO type combination sealing washer 13, and JO type combination sealing washer 13 is located the top surface of feed inlet 7, adopts boron nitride ceramic material, can stir in 1700 degrees, and on-stick material, compares traditional iridium oxide stirring rake, greatly reduced the processing cost.

When using, place partial material in induction heating circle 5 through now, let the response intensifies through electrode flange 6, thereby heat its inside material, make metal material melt, lift step motor 122 drives ball screw 123 and rotates, ball bearing 124 slides down along ball screw 123's surface, thereby drive stirring step motor 8 and move down, stirring step motor 8 drives boron nitride stirring rake 10 through optical axis 9 and moves down and enter into induction heating circle 5 in, simultaneously, start stirring step motor 8, stirring step motor 8 stirs the metal liquid through boron nitride stirring rake 10, if need when adding the material midway, alright reserve mouthful 11 through the secondary feeding and add.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A high-vacuum alloy casting furnace with mechanical stirring comprises a fixed base (1) and is characterized in that the top of the fixed base (1) is fixedly connected with a smelting cavity (2), the front end surface of the smelting cavity (2) is rotatably connected with a sealing cover plate (3), an induction heating ring (5) is fixedly connected in the smelting cavity (2), a fixed rack (4) is welded on the side wall of the smelting cavity (2), an electrode flange (6) is fixedly connected in the fixed rack (4), and the electrode flange (6) is connected with the induction heating ring (5);

smelt top fixedly connected with feed inlet (7) of cavity (2), the top of feed inlet (7) is provided with stirring step motor (8), the output of stirring step motor (8) is connected with optical axis (9), the one end that stirring step motor (8) were kept away from in optical axis (9) runs through the top of smelting cavity (2) and stretches into and smelt cavity (2), one end fixedly connected with boron nitride stirring rake (10) that optical axis (9) were located and smelt cavity (2), the rear end of smelting cavity (2) and keeping away from sealed apron (3) is provided with vacuum opening (14).

2. A high vacuum belt mechanical stirring alloy casting furnace as claimed in claim 1, characterized in that the surface of the sealing cover plate (3) is embedded with a quartz observation window (31), and the outer side wall of the sealing cover plate (3) far away from the smelting chamber (2) is welded with a fixed handle (32).

3. A high vacuum belt mechanical stirring alloy casting furnace as claimed in claim 1, characterized in that the top of the feed inlet (7) is fixedly connected with a secondary feed reserve port (11).

4. A high vacuum belt mechanical stirring alloy casting furnace as claimed in claim 1, characterized in that the top of the feed inlet (7) is provided with a lifting mechanism (12), and the stirring stepping motor (8) is fixed on the surface of the lifting mechanism (12).

5. The high-vacuum belt mechanical stirring alloy casting furnace as claimed in claim 4, wherein the lifting mechanism (12) comprises a motor fixing support (121), a lifting stepping motor (122) is fixedly connected to the top of the motor fixing support (121), a ball screw (123) is rotatably connected to the inner cavity of the motor fixing support (121), the output end of the lifting stepping motor (122) penetrates through the top of the motor fixing support (121) to be connected with the ball screw (123), a ball bearing (124) is connected to the surface of the ball screw (123) in a threaded manner, and the stirring stepping motor (8) is fixedly connected with the ball bearing (124).

6. A high vacuum belt mechanical stirring alloy casting furnace as claimed in claim 1, characterized in that the surface of the optical axis (9) is sleeved with a JO type combined sealing ring (13), and the JO type combined sealing ring (13) is positioned on the top surface of the feeding port (7).