Crucible pressing fixture in vacuum chamber

Abstract

The utility model relates to a smelting crucible device, and particularly provides a vacuum chamber inner crucible compression fixing device, including a baffle ring, the baffle ring is located on the crucible, baffle ring outer wall has the pull bar of welding, every pull bar is horizontally welded with a pressing plate, the pressing plate extends outward, and the extension end is provided with a bolt hole, and is connected with the hook-shaped bolt, the hook end of the hook-shaped bolt is hooked to the furnace body lifting lug of smelting furnace outer wall. Adopt the utility model device, press in the crucible with the baffle ring, and the baffle ring outer connection pressing plate hook-shaped bolt is hung, and the hook-shaped bolt is connected to the smelting furnace lifting lug, and the baffle ring is pressed on the crucible by exerting the pull-down force, and it is good to assemble and disassemble, and the baffle ring caliber is horn-shaped, and also prevents the splashing of solution.

Description

Technical Field

[0001] This utility model relates to crucible devices, specifically to a crucible clamping and fixing device inside a vacuum furnace. Background Technology

[0002] A vacuum rapid solidification furnace (also known as a strip casting furnace) is a device that uses vacuum induction melting to seal a crucible in a vacuum chamber and uses eddy current heat generated by electromagnetic induction as a heat source. The alloy raw materials in the crucible are melted in an inert gas state and poured onto a quenching roller through a pouring system (tundish), and then rapidly cooled and shaped.

[0003] During the heating process, due to thermal expansion, if the upper edge cannot hold the crucible in place, it will rise, affecting its lifespan and posing a safety hazard. The traditional method is as follows... Figure 1 As shown, the upper edge of the crucible 10 is held down by four pressure irons 20, and the pressure irons are fixed to the pressure cover of the melting furnace 40 by bolts 30. Due to the influence of ambient temperature and dust factors during vacuum melting, the threads of the pressure cover of the furnace body are prone to damage, resulting in a high maintenance frequency. Summary of the Invention

[0004] This invention addresses the problems mentioned in the background art by providing a crucible clamping and fixing device for a vacuum chamber that is easy to install and has a low failure rate. It employs a retaining ring clamping method, which facilitates installation, has a low failure rate, and simultaneously prevents material from spilling outside the crucible during automatic loading.

[0005] The technical solution adopted by this utility model is: a crucible clamping and fixing device in a vacuum chamber, including a retaining ring, the retaining ring being located on the crucible, the outer wall of the retaining ring being welded with a tie rod, a pressure plate being horizontally welded on each tie rod, the pressure plate extending outward, the extended end of the pressure plate being provided with a bolt hole, and a hook bolt being connected, the hook end of the hook bolt being hooked onto the furnace body lifting lug on the outer wall of the melting furnace.

[0006] As a preferred option, the retaining ring is horn-shaped, with the small diameter matching the inner diameter of the crucible and the large diameter exceeding the inner diameter of the crucible. The small diameter end is aligned with the inner diameter of the crucible to prevent the alloy solution from splashing.

[0007] As a preferred option, at least three tie rods are uniformly welded around the outer wall of the retaining ring to ensure uniform tensile force.

[0008] The technical solution provided by this utility model can not only press the retaining ring firmly onto the crucible to prevent the crucible from floating, but the retaining ring itself is also lightweight. The outer periphery of the retaining ring is cleverly connected to the pressure plate and hook-shaped bolts, which are connected to the lifting lugs of the melting furnace, making it easy to install and remove. The retaining ring has a trumpet-shaped opening, which also prevents the solution from splashing. Attached Figure Description

[0009] Figure 1 Diagram showing a traditional crucible clamping and fixing method; Figure 2 This is a diagram of the retaining ring used in this utility model; Figure 3 This is a diagram of the hook-shaped bolt used in this utility model; Figure 4 This is an assembly diagram of the present utility model. Detailed Implementation

[0010] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0011] Reference Figures 1-4 This utility model provides a crucible clamping and fixing device in a vacuum chamber. The device includes a retaining ring 1, which is flared in shape. The small diameter is the same as the inner diameter of the crucible, and the large diameter is larger than the inner diameter of the crucible. After installation, the small diameter end of the retaining ring sits on the crucible, aligned with the inner diameter of the crucible, while the large diameter end flares outward to prevent material from splashing outside the crucible when loading from top to bottom.

[0012] At least three tie rods 2 are evenly welded around the outer wall of the retaining ring 1, and a pressure plate 3 is horizontally welded on each tie rod 2. The pressure plate 3 extends outward, and bolt holes are provided at the extended ends for connecting hook bolts 4.

[0013] The straight end of the hook bolt 4 is connected to the pressure plate 3 through a nut, and the hook end is hooked onto the furnace body lifting lug 5 set on the outer wall of the smelting furnace. The hook bolt 4 is connected to the furnace body lifting lug 5 for easy disassembly and assembly.

[0014] During operation, after placing the crucible 10 into the melting furnace 40, place the retaining ring 1 on the upper edge of the crucible 10, aligning the smaller diameter of the retaining ring 1 with the inner diameter of the crucible. The pressure plate 3 will naturally extend outwards. Then, connect the hook bolt 4 to the bolt hole at the end of the pressure plate 3, and hook the other end of the hook bolt 4 onto the furnace body lifting lug 5 on the outer wall of the melting furnace 40. By pressing the retaining ring against the upper edge of the crucible, the crucible is prevented from rising, thus stabilizing it. When not in use, remove the hook bolt 4 and take off the retaining ring 1.

[0015] It should be noted that structures not described in this utility model are identical to or can be implemented using existing technology, as they do not involve the design points or improvement directions of this utility model, and will not be elaborated upon here. The above embodiments merely illustrate certain implementation methods of this utility model and should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any modifications and improvements made without departing from the spirit and essence of this utility model should fall within the scope of protection of this utility model.

Claims

1. A crucible clamping and fixing device in a vacuum chamber, characterized in that: Includes a retaining ring (1) which sits on the crucible (10); The outer wall of the retaining ring (1) is welded with a tie rod (2), and a pressure plate (3) is horizontally welded on each tie rod (2). The pressure plate (3) extends outward, and the extended end is provided with a bolt hole to connect a hook bolt (4). The hook end of the hook bolt (4) is hooked onto the furnace body lifting lug (5) on the outer wall of the smelting furnace.

2. The crucible clamping and fixing device in the vacuum chamber according to claim 1, characterized in that: The retaining ring (1) is horn-shaped, with the small diameter being the same as the inner diameter of the crucible, the large diameter being larger than the inner diameter of the crucible, and the small diameter end being aligned with the inner diameter of the crucible.

3. The crucible clamping and fixing device in the vacuum chamber according to claim 1, characterized in that: The retaining ring (1) has at least three tie rods (2) uniformly welded to its outer circumference.

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