Ingot casting cooling bed of vacuum electron beam cooling bed smelting furnace

Abstract

The utility model discloses a vacuum electron beam cold hearth smelting furnace ingot casting cold hearth, which comprises a crucible and a water jacket, the top of the crucible is provided with a first sealing surface and a second sealing surface, the second sealing surface is perpendicular to the first sealing surface, the second sealing surface is annularly provided with a first sealing groove, and the second sealing surface is provided with a second sealing groove. The crucible is sleeved with the water jacket, the water jacket is in sealing fit with the first sealing face and the second sealing face through L-shaped sealing rings, a first O-shaped ring is further arranged between the inner wall of the water jacket and the second sealing face, the first O-shaped ring is located below the L-shaped sealing rings, and the second O-shaped ring is located below the L-shaped sealing rings. And the first O-shaped ring is clamped in the first sealing groove. According to the utility model, the production loss is reduced and the maintenance cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of EB melting furnaces, in particular to an ingot cooling bed of a vacuum electron beam cold hearth melting furnace. Background Art

[0002] The vacuum electron beam cold hearth melting furnace uses high-speed electrons to bombard materials, converting them into heat energy, so that the raw materials are heated to the melting point of the materials, the materials melt, and after melting, they flow into the ingot cooling bed. The ingot cooling bed is equipped with a water cooling system for water cooling heat exchange, so that the materials become profiles. Since the heat conduction speed of the copper crucible is relatively fast, when producing metals with high temperature and high heat conduction coefficient, it is easy to cause thermal damage to the structure of the ingot cooling bed, directly resulting in the scrapping of the casting materials and the need for maintenance of the equipment. Summary of the Invention

[0003] Aiming at the above problems existing in the existing ingot cooling bed, the present invention aims to provide an ingot cooling bed of a vacuum electron beam cold hearth melting furnace with high protection, low maintenance cost, and reduced product scrapping loss and risk.

[0004] The specific technical solutions are as follows:

[0005] An ingot cooling bed of a vacuum electron beam cold hearth melting furnace, comprising: a crucible and a water jacket. The top of the crucible has a first sealing surface and a second sealing surface on the side. The second sealing surface is perpendicular to the first sealing surface, and the second sealing surface is provided with a first sealing groove in a ring shape. The water jacket is sleeved outside the crucible. The water jacket is hermetically fitted with the first sealing surface and the second sealing surface through an L-shaped sealing ring. There is also a first O-ring between the inner wall of the water jacket and the second sealing surface. The first O-ring is located below the L-shaped sealing ring, and the first O-ring is clamped in the first sealing groove. The inner wall of the bottom of the water jacket is provided with a second sealing groove in a ring shape. The inner wall of the bottom of the water jacket and the inner wall of the bottom of the crucible are hermetically fitted through a second O-ring, and the second O-ring is clamped in the second sealing groove;

[0006] Wherein, a sealed water chamber is formed among the water jacket, the crucible, the first O-ring, and the second O-ring. The outer wall of the crucible is provided with a water inlet and a water outlet communicated with the water chamber.

[0007] As a further improvement and optimization of this solution, the crucible includes a cooling section and a protection section that are communicated with each other. The protection section is located below the cooling section, and the inner diameter of the protection section is larger than the diameter of the cooling section, and the second O-ring is sleeved outside the protection section.

[0008] As a further improvement and optimization of this solution, the water cavity includes a first cavity, a second cavity and a third cavity. The first cavity surrounds the outside of the second cavity and is communicated with the water inlet. The second cavity surrounds the outside of the crucible. The second cavity is communicated with the first cavity through a first flow channel. The third cavity is located above the first cavity and the second cavity and is communicated with the water outlet. And the second cavity is communicated with the first cavity through a second flow channel. The second flow channel surrounds the crucible.

[0009] As a further improvement and optimization of this solution, the bottom outer wall of the crucible is provided with rounded corners.

[0010] As a further improvement and optimization of this solution, the top opening of the crucible is flared.

[0011] As a further improvement and optimization of this solution, the outer side of the top of the crucible has an installation extension edge, and the first sealing surface and the second sealing surface are arranged on the installation extension edge.

[0012] As a further improvement and optimization of this solution, a groove is formed between the installation extension edge and the crucible, and the groove is located inside the second sealing surface.

[0013] As a further improvement and optimization of this solution, a bracket is provided inside the water jacket. The top of the bracket extends into the groove, and the second flow channel is formed between the bracket and the outer wall of the crucible.

[0014] As a further improvement and optimization of this solution, both sides of the bottom of the groove are provided with rounded corners.

[0015] As a further improvement and optimization of this solution, a plurality of installation holes are circumferentially distributed on the outer wall of the installation extension edge.

[0016] The positive effects of the above technical solutions compared with the prior art are as follows:

[0017] (1) In the present utility model, the first O-ring is placed inside the water jacket for better cooling, preventing the first O-ring from melting and leaking water due to heat conduction during the melting production of the copper crucible. At the same time, an L-shaped sealing ring is also used for sealing between the first sealing surface, the third sealing surface and the water jacket, providing secondary sealing protection for the upper part of the crucible and the water jacket, protecting the production materials from damage caused by the damage of the first O-ring seal, and reducing production losses.

[0018] (2) The crucible of the present utility model includes a cooling section and a protection section that are interconnected. The protection section is located below the cooling section, and the inner diameter of the protection section is larger than the diameter of the cooling section. The second O-ring is sleeved outside the protection section. When the material enters the protection section from the cooling section, the casting ingot separates from the inner wall of the protection section, preventing damage to the second O-ring caused by the high temperature of the casting ingot.

[0019] (3) The outer wall of the bottom of the crucible of the present utility model is provided with a rounded corner to prevent installation damage to the second sealing ring when it is installed on the crucible. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of an ingot cooling bed of a vacuum electron beam cold hearth melting furnace according to the present utility model;

[0021] Figure 2 is a schematic diagram of a crucible of an ingot cooling bed of a vacuum electron beam cold hearth melting furnace according to the present utility model;

[0022] In the drawings: 1, crucible; 2, water jacket; 3, L-shaped sealing ring; 4, first O-ring; 5, second O-ring; 11, installation extension; 12, cooling section; 13, protection section; 111, first sealing surface; 112, second sealing surface; 113, first sealing groove; 114, groove; 115, installation hole; 21, first cavity; 22, second cavity; 23, second flow channel; 24, water inlet; 25, third cavity; 26, support. Detailed Embodiments

[0023] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Figure 1 It is a schematic structural diagram of an ingot cooling bed of a vacuum electron beam cold hearth melting furnace according to the present utility model. Figure 2 It is a schematic diagram of a crucible of an ingot cooling bed of a vacuum electron beam cold hearth melting furnace according to the present utility model. As Figure 1 shown, it shows an ingot cooling bed of a vacuum electron beam cold hearth melting furnace of a preferred embodiment, including: a crucible 1 and a water jacket 2. The top of the crucible 1 has a first sealing surface 111 and a second sealing surface 112 on the side. The second sealing surface 112 is perpendicular to the first sealing surface 111, and the second sealing surface 112 is provided with a first sealing groove 113 in a ring shape. The water jacket 2 is sleeved outside the crucible 1. The water jacket 2 and the first sealing surface 111, the second sealing surface 112 are hermetically matched through an L-shaped sealing ring 3. There is also a first O-ring 4 between the inner wall of the water jacket 2 and the second sealing surface 112. The first O-ring 4 is located below the L-shaped sealing ring 3, and the first O-ring 4 is clamped in the first sealing groove 113. The inner wall of the bottom of the water jacket 2 is provided with a second sealing groove in a ring shape. The inner wall of the bottom of the water jacket 2 and the inner wall of the bottom of the crucible 1 are hermetically matched through a second O-ring 5, and the second O-ring 5 is clamped in the second sealing groove; wherein, a sealed water chamber is formed among the water jacket 2, the crucible 1, the first O-ring 4, and the second O-ring 5. The outer wall of the crucible 1 has a water inlet 24 and a water outlet (not shown in the figure) communicating with the water chamber. The molten material flows into the crucible 1, the cooling water flows into the water chamber from the water inlet 24 and is discharged from the water outlet, so that a flowing water cooling system is formed in the water chamber. The material exchanges heat through water cooling with the crucible 1, so that the material forms a profile.

[0027] In this embodiment, the first O-ring 4 is placed in the water jacket 2 for better cooling, preventing the first O-ring 4 from melting and leaking due to heat conduction during the smelting production of the copper crucible 1. At the same time, an L-shaped sealing ring is also used for sealing between the first sealing surface 111, the third sealing surface and the water jacket 2, to perform secondary sealing protection on the upper part of the crucible 1 and the water jacket 2, to protect the production materials from damage to the first O-ring seal, and to reduce production losses.

[0028] Further, as a preferred embodiment, the crucible 1 includes a cooling section 12 and a protection section 13 that communicate with each other. The protection section 13 is located below the cooling section 12, and the inner diameter of the protection section 13 is larger than the diameter of the cooling section 12. The second O-ring 5 is sleeved outside the protection section 13. When the material enters the protection section 13 from the cooling section 12, the casting ingot separates from the inner wall of the protection section 13, preventing the second O-ring 5 from being damaged due to the high temperature of the casting ingot.

[0029] Further, as a preferred embodiment, the water chamber includes a first chamber 21, a second chamber 22, and a third chamber 25. The first chamber 21 surrounds the outside of the second chamber 22 and communicates with the water inlet 24. The second chamber 22 surrounds the outside of the crucible 1. The second chamber 22 communicates with the first chamber 21 through a first flow channel. The third chamber 25 is located above the first chamber 21 and the second chamber 22 and communicates with the water outlet. The second chamber 22 communicates with the first chamber 21 through a second flow channel 23, and the second flow channel 23 surrounds the crucible 1.

[0030] Further, as a preferred embodiment, the outer wall of the bottom of the crucible 1 is provided with a rounded corner to prevent installation damage when the second sealing ring is installed on the crucible 1.

[0031] Further, as a preferred embodiment, the top opening of the crucible 1 is flared to facilitate the entry of the material into the crucible 1.

[0032] Further, as a preferred embodiment, the top outer side of the crucible 1 has an installation flange 11, and a first sealing surface 111 and a second sealing surface 112 are provided on the installation flange 11.

[0033] Further, as a preferred embodiment, a groove 114 is formed between the installation flange 11 and the crucible 1, and the groove 114 is located inside the second sealing surface 112.

[0034] Further, as a preferred embodiment, a bracket 26 is provided inside the water jacket 2. The top of the bracket 26 extends into the groove 114, and a second flow channel 23 is formed between the bracket 26 and the outer wall of the crucible 1.

[0035] Further, as a preferred embodiment, both sides of the bottom of the groove 114 are provided with rounded corners.

[0036] Further, as a preferred embodiment, a plurality of installation holes 115 are circumferentially distributed on the outer wall of the installation flange 11.

[0037] The above are only the preferred embodiments of the present utility model, and thus do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the solutions obtained by equivalent substitution and obvious changes made by using the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum electron beam cooling hearth melting furnace ingot cooling hearth, characterized in that: include: A crucible and a water jacket, wherein the top of the crucible has a first sealing surface and a second sealing surface on the side surface, the second sealing surface is arranged perpendicularly to the first sealing surface, and the second sealing surface is provided with a first sealing groove, the water jacket is arranged on the outside of the crucible, the water jacket is sealed with the first sealing surface and the second sealing surface through an L-shaped sealing ring, a first O-ring is further provided between the inner wall of the water jacket and the second sealing surface, the first O-ring is located below the L-shaped sealing ring, the first O-ring is clamped in the first sealing groove, a second sealing groove is provided on the inner wall of the bottom of the water jacket, the inner wall of the bottom of the water jacket is sealed with the inner wall of the bottom of the crucible through a second O-ring, and the second O-ring is clamped in the second sealing groove; A sealed water cavity is formed among the water jacket, the crucible, the first O-ring and the second O-ring, and a water inlet and a water outlet connected to the water cavity are provided on the outer wall of the crucible.

2. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 1, characterized in that: The crucible comprises a cooling section and a protection section which are interconnected. The protection section is located below the cooling section, and the inner diameter of the protection section is larger than the diameter of the cooling section. The second O-ring is sleeved outside the protection section.

3. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 1, characterized in that: The water cavity includes a first cavity, a second cavity and a third cavity. The first cavity is arranged outside the second cavity and is connected to the water inlet. The second cavity is arranged outside the crucible. The second cavity is connected to the first cavity through a first flow channel. The third cavity is located above the first cavity and the second cavity and is connected to the water outlet. The second cavity is connected to the first cavity through a second flow channel. The second flow channel is arranged outside the crucible.

4. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 1, characterized in that: The outer wall of the bottom of the crucible is rounded.

5. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 1, characterized in that: The top opening of the crucible is expanded.

6. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 3, characterized in that: The outer side of the top of the crucible has a mounting edge, and the first sealing surface and the second sealing surface are arranged on the mounting edge.

7. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 6, characterized in that: A groove is formed between the installation edge and the crucible, and the groove is located on the inner side of the second sealing surface.

8. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 7, characterized in that: A support is provided in the water jacket, the top of the support extends into the groove, and the second flow channel is formed between the support and the outer wall of the crucible.

9. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 8, characterized in that: Both sides of the groove bottom of the groove are rounded.

10. The vacuum electron beam cooling hearth melting furnace ingot cooling hearth according to claim 6, characterized in that: A plurality of mounting holes are distributed around the outer wall of the mounting edge.

Images