Vacuum crucible in vertical heat treatment furnace

Abstract

The utility model discloses a vacuum crucible in a vertical heat treatment furnace, which comprises a cylinder centrally arranged in the vertical heat treatment furnace, an elliptical head is arranged at the top end of the cylinder, a reinforcing ring is arranged around the outer side of the cylinder, and the cylinder is fixed in the vertical heat treatment furnace through a support component. The supporting assembly comprises a plurality of supporting steel pipes arranged on the lower surface of the barrel, and a base for increasing stability is installed at the bottoms of the supporting steel pipes. The bottom cover is fixed in the vertical heat treatment furnace through the supporting steel pipes, the overall stability of the crucible is improved, the interior of the crucible is heated through the argon outlet and the argon inlet, due to the fact that a vortex structure is formed in the crucible, the temperature distribution uniformity is good, meanwhile, a uniform flow field is formed around the coil, replacement of argon is effectively formed, and the heat treatment efficiency is improved. And the coil is maintained in a stable temperature range, so that the heat treatment effect is improved.

Description

Technical Field

[0001] The utility model particularly relates to a vacuum crucible in a vertical heat treatment furnace. Background Art

[0002] The test coil usually refers to a ring-shaped wire winding. Before being put into use, the test coil needs to be heat treated in a controlled atmosphere under argon protection.

[0003] The current heat treatment method is to place the test coil in a vertical heat treatment furnace for heat treatment process operation. However, when heat treating through a single vertical heat treatment furnace, effective argon replacement cannot be performed, which affects the heat treatment results of the test coil. To this end, we propose a vacuum crucible in a vertical heat treatment furnace. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum crucible in a vertical heat treatment furnace to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a vacuum crucible in a vertical heat treatment furnace, comprising a cylinder centrally arranged in the vertical heat treatment furnace, an elliptical head provided at the top of the cylinder, and a reinforcement ring provided around the outer side of the cylinder, the cylinder being fixed in the vertical heat treatment furnace by a support assembly, the support assembly comprising a plurality of supporting steel pipes arranged on the lower surface of the cylinder, and a base for increasing stability being installed at the bottom of the supporting steel pipes.

[0006] Preferably, a channel steel ring is installed on the lower surface of the cylinder through a flange, and a plurality of I-beams are arranged in the channel steel ring.

[0007] Preferably, a bottom plate is provided between the cylinder and the supporting steel pipe to increase stability.

[0008] Preferably, ribs are installed on the upper surface of the base and on both sides of the supporting steel pipe.

[0009] Preferably, a manhole is provided on the outside of the cylinder.

[0010] Preferably, shaft ears are provided on both sides of the outer body of the cylinder.

[0011] Preferably, an argon inlet, an argon outlet and a vacuum port are respectively provided on the lower surface of the cylinder.

[0012] The technical effects and advantages of the utility model are as follows: the bottom cover of the vacuum crucible in the vertical heat treatment furnace is fixed in the vertical heat treatment furnace by a plurality of supporting steel pipes, thereby improving the overall stability of the crucible, and heating the crucible through the argon outlet and the argon inlet. Due to the formation of a vortex structure in the crucible, the temperature distribution is more uniform, and at the same time a more uniform flow field is formed around the coil, effectively forming the replacement of argon gas, maintaining the coil in a stable temperature range, thereby improving the effect of heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first perspective;

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second perspective;

[0015] Figure 3 It is a bottom view of the utility model;

[0016] Figure 4 It is a side view of the present utility model.

[0017] In the figure: 1. Bottom cover; 2. Flange; 3. Cylinder; 4. Reinforcement ring; 5. Elliptical head; 6. Shaft ear; 7. Manhole; 8. Argon outlet; 9. Argon inlet; 10. Channel steel ring; 11. I-beam; 12. First bottom plate; 13. Support steel pipe; 14. Rib plate; 15. Second bottom plate; 16. Vacuum port. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] In order to improve the heat treatment effect of the test coil, refer to Figure 1 、 Figure 2 and Figure 3 As shown, it includes a cylinder 3 centrally arranged in a vertical heat treatment furnace, an elliptical head 5 is provided on the top of the cylinder 3, and a reinforcement ring 4 is provided around the outer side of the cylinder 3. The cylinder 3 is fixed in the vertical heat treatment furnace through a support assembly, and the support assembly includes a plurality of supporting steel pipes 13 provided on the lower surface of the cylinder 3. The bottom of the supporting steel pipe 13 is installed with an increased stability base 15. The bottom cover 1 is fixed in the vertical heat treatment furnace through a plurality of supporting steel pipes 13 to improve the overall stability of the crucible, and the crucible is heated through the argon outlet 8 and the argon inlet 9. Due to the formation of a vortex structure in the crucible, the temperature distribution is more uniform, and a relatively uniform flow field is formed around the coil, which effectively forms the replacement of argon gas and maintains the coil in a stable temperature range, thereby improving the effect of heat treatment.

[0020] In order to keep the argon gas in the crucible at a positive pressure, refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a channel steel ring 10 is installed on the lower surface of the cylinder 3 through the flange 2. The channel steel ring 10 improves the support of the cylinder 3 as a whole, making it more resistant to stress. A number of I-beams 11 are arranged inside the channel steel ring 10, and the I-beams 11 support the channel steel ring 10, thereby improving the fixation of the cylinder 3 and making it more stable. A bottom plate 12 is provided between the cylinder 3 and the supporting steel pipe 13 to increase stability. The bottom plate 12 increases the contact area between the supporting steel pipe 13 and the cylinder 3, thereby further supporting the cylinder 3. Ribs 14 are installed on the upper surface of the base 15 and on both sides of the supporting steel pipe 13. The ribs 14 improve the fixation of the supporting steel pipe 13, so that the supporting force of the supporting steel pipe 13 is improved, and the overall stability is improved. A manhole 7 is provided on the outside of the cylinder 3, and personnel enter and exit the equipment through the manhole 7 for installation, maintenance and safety inspection. Axle ears 6 are provided on both sides of the outside of the cylinder 3. The lower surface of the cylinder 3 is provided with an argon inlet 9, an argon outlet 8, and a vacuum port 16. The argon inlet 9 and the argon outlet 8 are used to completely seal the crucible in the cylinder 3, which is made of high-temperature resistant stainless steel. After the material is discharged, it is necessary to evacuate the crucible and replace it with argon. The concentration of argon and the content of other gases such as oxygen and water are monitored. When the concentration does not meet the standard, the argon is replenished and replaced. The crucible always maintains a positive pressure of argon. The bottom of the crucible is penetrated by an argon inlet and outlet. The argon in the crucible enters through four inlets, and the middle outlet discharges the replaced argon. The argon in the coil is connected through four inlets and four outlets. Two inlets and two outlets correspond to a set of coils requiring two inlets and two outlets for heat treatment. Two sets of two-inlet and two-outlet coils can be processed simultaneously. For coils with a single inlet and a single outlet, one of the inlets and outlets can be closed, so that two sets of coils can be processed simultaneously. The pipe interface of the crucible cover is used for vacuuming the crucible.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A vacuum crucible in a vertical heat treatment furnace, characterized in that: The invention comprises a cylinder (3) centrally arranged in a vertical heat treatment furnace, an elliptical head (5) is arranged at the top of the cylinder (3), a reinforcement ring (4) is arranged around the outer side of the cylinder (3), and the cylinder (3) is fixed in the vertical heat treatment furnace through a support assembly, wherein the support assembly comprises a plurality of supporting steel pipes (13) arranged on the lower surface of the cylinder (3), and a base (15) for increasing stability is installed at the bottom of the supporting steel pipe (13).

2. The vacuum crucible in the vertical heat treatment furnace according to claim 1, characterized in that: A channel steel ring (10) is mounted on the lower surface of the cylinder (3) via a flange (2), and a plurality of I-beams (11) are arranged in the channel steel ring (10).

3. The vacuum crucible in the vertical heat treatment furnace according to claim 1, characterized in that: A bottom plate (12) is provided between the cylinder (3) and the supporting steel pipe (13) to increase stability.

4. The vacuum crucible in a vertical heat treatment furnace according to claim 1, characterized in that: Rib plates (14) are installed on the upper surface of the base (15) and on both sides of the supporting steel pipe (13).

5. The vacuum crucible in the vertical heat treatment furnace according to claim 1, characterized in that: A manhole (7) is provided on the outside of the cylinder (3).

6. The vacuum crucible in a vertical heat treatment furnace according to claim 1, characterized in that: Axle ears (6) are provided on both sides of the outer side of the cylinder (3).

7. The vacuum crucible in a vertical heat treatment furnace according to claim 1, characterized in that: An argon inlet (9), an argon outlet (8) and a vacuum port (16) are respectively provided on the lower surface of the cylinder (3).

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