CN218349223U

CN218349223U - Small-size electron beam furnace for experiments

Info

Publication number: CN218349223U
Application number: CN202222185207.3U
Authority: CN
Inventors: 徐嘉立; 徐谦
Original assignee: Zhuzhou Ximeitai Technology Co ltd
Current assignee: Zhuzhou Ximeitai Technology Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2023-01-20
Anticipated expiration: 2032-08-19

Abstract

The utility model relates to an electron beam furnace technical field discloses a small-size electron beam furnace for experiments, the induction cooker comprises a cooker bod, furnace body rear end fixedly connected with vacuum system, supporting electrical power generating system and the cooling system of being provided with in furnace body one side, the furnace body is close to electrical power generating system's one side fixedly connected with control panel, the terminal surface rotates before the furnace body and is connected with the furnace gate, equal fixedly connected with external seal circle and the inner seal circle of contact surface of furnace gate and furnace body, the position that the furnace body upper end is located between internal seal circle and the external seal circle has seted up the fluting, the inside fixedly connected with crucible of furnace body, terminal surface fixedly connected with electron gun on the crucible. The utility model discloses in, the device is opposite with the characteristics of high-power electron founding stove, provides a convenient to use's miniaturized electron beam melting stove for the laboratory, simple structure, convenient operation, the transportation and the removal of being convenient for, but wide application in scientific research institute do refractory metal's smelting and purification, the energy saving.

Description

Small-size electron beam furnace for experiments

Technical Field

The utility model relates to an electron beam furnace technical field especially relates to a small-size electron beam furnace for experiments.

Background

Electron beam melting refers to a vacuum melting method for melting metal by converting kinetic energy of high-speed electron beam into heat energy under high vacuum as a heat source, which is called EBM for short. The smelting method has the characteristics of high smelting temperature, adjustable furnace power and heating speed and good product quality, but also has the problems of low metal yield, high specific power consumption, need of smelting in a high vacuum state and the like, and the electron beam smelting is not only used for smelting and refining steel and rare metals, but also widely used for welding, ceramic material casting and the like;

the electron beam smelting furnace is an application of high-energy electron beam technology in metal smelting, and its main working principle is that an electron gun (cathode) forms high-energy electron beam by heating emitted electrons under the acceleration of high-voltage electrostatic field, and the electron beam bombards the metal to be smelted after being focused, so that the high-melting point metal is melted.

The electron beam melting furnace comprises an electron beam melting furnace body (comprising an electron gun, a furnace body, a crucible and a cooling mechanism), and matched auxiliary facilities (a vacuum system, a high-voltage power supply and a low-voltage power supply), an operating system and the like. The vacuum system provides a vacuum working environment for the electron beam melting furnace; the high-voltage power supply provides accelerating voltage, bombardment voltage to the cathode block and the like for electrons emitted by the electron gun; the low-voltage power supply is mainly used for providing current for the focusing, deflecting and scanning coils and further used for controlling electrons emitted by the electron gun so that the electrons can accurately bombard the melted material rod according to the designed process requirements.

However, in order to meet the industrial production requirements, the furnace body of the current electron beam smelting furnace is designed to have a relatively large volume, and is provided with a high-power electron gun, so that the electron beam smelting furnace not only has high manufacturing cost of equipment, but also occupies large space, is inconvenient for some research and development units to use, and wastes energy greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the small-size electron beam furnace for experiments that proposes compares with high-power electron founding stove, and this novel characteristic that possesses is opposite with it, provides a convenient to use's miniaturized electron beam melting furnace for the laboratory, simple structure, convenient operation, the transportation and the removal of being convenient for, but wide application in scientific research institute do refractory metal's smelting and purification, the energy saving.

In order to achieve the above purpose, the utility model provides a following technical scheme: a small-sized electron beam furnace for experiments comprises a furnace body, wherein the rear end of the furnace body is fixedly connected with a vacuum system, one side of the furnace body is provided with a power supply system and a cooling system in a matching way, and one side of the furnace body, which is close to the power supply system, is fixedly connected with a control panel;

the furnace body is characterized in that the front end face of the furnace body is rotatably connected with a furnace door, the contact surface of the furnace door and the furnace body is fixedly connected with an outer sealing ring and an inner sealing ring, a slot is formed in the position, between the inner sealing ring and the outer sealing ring, of the upper end of the furnace body, a crucible is fixedly connected inside the furnace body, the upper end face of the crucible is fixedly connected with an electron gun, the outer wall of one side of the furnace body is fixedly connected with a first observation window, and the middle part of the front end face of the furnace door is fixedly connected with a second observation window;

through the technical scheme, the device is simple in integral structure, convenient to operate, convenient to transport and move, and capable of being widely applied to scientific research institutions to smelt and purify refractory metals and save energy.

Further, the crucible is connected with the bottom of the furnace body through a cooling water pipe;

through the technical scheme, the cooling water required by the crucible is introduced from the bottom of the furnace body.

Further, the electron gun is a low-power electron gun with the power less than 80 KW;

through the technical scheme, the power consumption of the electron gun is reduced, a small amount of metal is conveniently smelted, and meanwhile, the energy is saved.

Further, a frame body is fixedly arranged on the lower end face of the furnace body;

through the technical scheme, the frame body is connected with the furnace body through the adjusting bolts, and the installation, debugging and maintenance are convenient.

Further, the crucible is designed to be a round crucible;

through the technical scheme, the crucible is convenient to disassemble.

Furthermore, the first observation window and the second observation window are both flash frequency observation windows, a circular baffle capable of rotating at a high speed is arranged in each flash frequency observation window, and grids are arranged on the baffles;

by adopting the technical scheme, the smelting condition of materials in the furnace can be observed at any time, and the defect that the conventional glass observation window is covered by sputtered smelting materials and loses function can be overcome.

Furthermore, two ends of the furnace body are respectively provided with a furnace door and an interface for connecting a vacuum system;

through the technical scheme, the connecting device is used for connecting the furnace door and the vacuum system.

Furthermore, the slotting uses a mechanical pump to vacuumize, so that pressure difference less than 1Pa is formed at two sides of the inner sealing ring;

through above-mentioned technical scheme, improve the sealed effect to the furnace gate greatly.

The utility model discloses following beneficial effect has:

1. the utility model provides a pair of small-size electron beam furnace for experiments, the furnace gate adopts the sealed form of double containment circle of inner seal circle and external seal circle, is equipped with the fluting between two sealing washers, and to the fluting evacuation with the mechanical pump, the pressure differential that makes the inner seal circle both sides is approximately for 0 to the realization improves greatly the sealed effect of furnace gate, and to the pressure rising rate of furnace body have obvious reduction, makes the smelting furnace can use under exceeding the vacuum and provide the assurance.

2. The utility model provides a small-size electron beam furnace for experiments, crucible convenient to detach and installation. Because the types of experiments are different, the crucible needs to be replaced frequently, the manual moving is avoided, and the labor intensity is greatly reduced.

3. The utility model provides a pair of small-size electron beam furnace for experiments, whole equipment is slightly little, is convenient for transport and remove, and occupation space is little, is fit for the experiments and uses, smelts a small amount of metal, is equipped with a plurality of observation windows, can realize the multi-angle and observe, is convenient for experiment observation.

Drawings

FIG. 1 is an isometric view of a small electron beam furnace for experiments according to the present invention;

fig. 2 is a left side view of an experimental small electron beam furnace according to the present invention;

FIG. 3 is a front view of an experimental small electron beam furnace according to the present invention;

FIG. 4 is a schematic view of a crucible structure of a small-sized electron beam furnace for experiments according to the present invention;

fig. 5 is a structural diagram of a furnace door joint of the experimental small-sized electron beam furnace.

Illustration of the drawings:

1. a furnace body; 2. a frame body; 3. a vacuum system; 4. an electron gun; 5. a power supply system; 6. a cooling system; 7. a first observation window; 8. a crucible; 9. a cooling water pipe; 10. an outer sealing ring; 11. grooving; 12. an inner seal ring; 13. a second observation window; 14. a furnace door; 15. a control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all 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.

Referring to fig. 1-4, the present invention provides an embodiment: a small-sized electron beam furnace for experiments comprises a furnace body 1, wherein the rear end of the furnace body 1 is fixedly connected with a vacuum system 3, one side of the furnace body 1 is provided with a power supply system 5 and a cooling system 6 in a matching way, and one side of the furnace body 1, which is close to the power supply system 5, is fixedly connected with a control panel 15;

the furnace body 1 front end face is rotationally connected with a furnace door 14, the contact surface of the furnace door 14 and the furnace body 1 is fixedly connected with an outer sealing ring 10 and an inner sealing ring 12, a notch 11 is formed in the position, between the inner sealing ring 12 and the outer sealing ring 10, of the upper end of the furnace body 1, the furnace body 1 upper end face is fixedly connected with a crucible 8, the crucible 8 upper end face is fixedly connected with an electron gun 4, the outer wall of one side of the furnace body 1 is fixedly connected with a first observation window 7, and the middle part of the furnace door 14 front end face is fixedly connected with a second observation window 13.

Crucible 8 passes through condenser tube 9 and is connected with the bottom of furnace body 1, electron gun 4 is for being less than 80 KW's miniwatt electron gun 4, 1 inside fixed support body 2 that is provided with of furnace body, 8 designs of crucible are round crucible 8, first observation window 7 is the stroboscopic observation window with second observation window 13, it has the grid to open on the baffle, 1 both ends of furnace body are equipped with furnace gate 14 respectively and are used for connecting the interface of

vacuum system

3, 11 use mechanical pump evacuation in fluting, make inner seal 12 both sides form the pressure differential that is less than 1 Pa.

The working principle is as follows: when the small electron beam furnace for the experiment is used, the furnace door 14 is opened, a small amount of metal is placed in the furnace body 1, the furnace door 14 is closed, the device is started by using the control panel 15, and the vacuum system 3 provides a vacuum working environment for the electron beam melting furnace; a high-voltage power supply in the power supply system 5 provides accelerating voltage, bombardment voltage to the cathode block and the like for electrons emitted by the electron gun 4; the low-voltage power supply supplies current to the focusing, deflecting and scanning coils, and is further used for controlling electrons emitted by the electron gun 4 to accurately bombard the melted material rod according to the designed process requirements, the electron gun 4 (cathode) forms a high-energy electron beam under the acceleration of a high-voltage electrostatic field by heating the emitted electrons, and the electron beam bombards the metal to be melted after being focused to melt the high-melting-point metal.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a small-size electron beam furnace for experiments, includes furnace body (1), its characterized in that: the rear end of the furnace body (1) is fixedly connected with a vacuum system (3), one side of the furnace body (1) is provided with a power supply system (5) and a cooling system (6) in a matching way, and one side of the furnace body (1) close to the power supply system (5) is fixedly connected with a control panel (15);

the utility model discloses a crucible furnace, including furnace body (1), furnace door (1), outer seal ring (10) and inner seal ring (12), the equal fixedly connected with external seal ring (10) of contact surface of furnace door (14) and furnace body (1), fluting (11) have been seted up to the position that is located between inner seal ring (12) and external seal ring (10) in furnace body (1) upper end, furnace body (1) inside fixedly connected with crucible (8), crucible (8) up end fixedly connected with electron gun (4), first observation window (7) of furnace body (1) one side outer wall fixedly connected with, terminal surface middle part fixedly connected with second observation window (13) before furnace door (14).

2. A small-sized electron beam furnace for experiments according to claim 1, wherein: the crucible (8) is connected with the bottom of the furnace body (1) through a cooling water pipe (9).

3. A small-sized electron beam furnace for experiments according to claim 1, wherein: the electron gun (4) is a low-power electron gun (4) smaller than 80 KW.

4. A small-sized electron beam furnace for experiments according to claim 1, wherein: the lower end face of the furnace body (1) is fixedly provided with a frame body (2).

5. A small-sized electron beam furnace for experiments according to claim 1, wherein: the crucible (8) is designed as a round crucible (8).

6. A small-sized electron beam furnace for experiments according to claim 1, wherein: the first observation window (7) and the second observation window (13) are both flash observation windows, a circular baffle capable of rotating at a high speed is arranged in each flash observation window, and grids are arranged on the baffles.

7. A small-sized electron beam furnace for experiments according to claim 1, wherein: and two ends of the furnace body (1) are respectively provided with a furnace door (14) and an interface for connecting a vacuum system (3).

8. A small-sized electron beam furnace for experiments according to claim 1, wherein: and the groove (11) is vacuumized by a mechanical pump, so that the pressure difference of less than 1Pa is formed between two sides of the inner sealing ring (12).