A charging device for vacuum induction melting of a metallic material

Abstract

The utility model belongs to raw material smelting technical field of foundry product, concretely relates to a kind of material preparation device for vacuum induction smelting metal material;Including material preparation device and ejector rod, the bottom of the smelting chamber of material preparation device is provided with through hole, and the ejector rod is inserted in the through hole, the ejector rod can be blocked in the molten state when metal material pass through hole, or after metal material solidification, push up ingot to make it separate from material preparation device;Ejector rod can eject ingot from bottom to top;Not only effectively solve the technical problem that ingot is difficult to demould in vacuum induction smelting, also have simple structure, easy operation, high safety, strong applicability and other advantages, have good industrial application prospect and economic value.

Description

Technical Field

[0001] This utility model belongs to the field of raw material smelting technology for casting products, and specifically relates to a material processing device for vacuum induction smelting of metal materials. Background Technology

[0002] In a production environment where casting technology is becoming increasingly sophisticated, investment casting, with its advantages of being suitable for producing metal parts with complex shapes, high dimensional accuracy, and smooth surfaces, is widely used in aerospace, medical devices, and other fields. This process has certain requirements for the selection of metal materials; purchased materials may not meet production needs. Therefore, in the production of castings, in-house synthesis can control the element ratio to a certain extent and can also utilize recycled metals from scrap to reduce costs, making it a very economical method. However, when melting metal materials in a vacuum furnace, the phenomenon of difficulty in separating the molten metal from the melting device after cooling often occurs. This not only increases time and labor costs but also easily causes collisions during the separation process, leading to ingot defects. Utility Model Content

[0003] This invention aims to solve the problem of difficulty in demolding ingots in the raw material processing device after vacuum induction melting of metal materials.

[0004] This utility model provides the following technical solution: a material processing device for vacuum induction melting of metal materials, including a material processing device and a push rod. The bottom of the melting chamber of the material processing device has a through hole, and the push rod is inserted into the through hole. The push rod can block the through hole when the metal material is in a molten state, or push the ingot upward after the metal material solidifies to separate it from the material processing device.

[0005] Furthermore, the through hole is wider at the top and narrower at the bottom, and the side of the push rod fits into the through hole.

[0006] Furthermore, the through hole is a conical hole, and the push rod is a frustum. The push rod is inserted into the through hole, and the top of the push rod is flush with the top opening of the through hole.

[0007] Furthermore, the melting chamber of the chemical processing unit is wider at the top and narrower at the bottom.

[0008] Furthermore, the top of the melting chamber of the material processing device has a circular cross-section, the bottom end is aligned with the top opening of the through hole, and the middle is a smooth arc surface that is concave inward.

[0009] Furthermore, the outer side of the material processing device is provided with two pairs of pins, one above the other, and the ends of the pins are anti-detachment bosses.

[0010] Furthermore, the bottom end of the push rod is flush with the bottom opening of the through hole.

[0011] Furthermore, the material processing device is cylindrical, with the melting chamber and through-hole located at the center of the material processing device.

[0012] Compared with the prior art, the advantages of this utility model are: This utility model provides a melting device for vacuum induction melting of metal materials, which not only effectively solves the technical problem of difficult ingot demolding in vacuum induction melting, but also has the advantages of simple structure, convenient operation, high safety, and strong applicability, and has good industrial application prospects and economic value. By setting a movable push rod at the bottom of the melting device, the ingot can be directly pushed upwards after the metal solidifies, making it easily separate from the melting device. This avoids damage to the ingot and wear on the equipment caused by knocking or prying in traditional methods, greatly improving demolding efficiency and operational safety. The through hole adopts a conical hole design that is wider at the top and narrower at the bottom, and the push rod is a truncated cone that fits into it. During the melting process, the push rod can tightly seal the through hole, effectively preventing molten metal leakage and ensuring the stability and safety of the melting process. The melting chamber of the melting device also adopts a design that is wider at the top and narrower at the bottom, forming a coordinated demolding system in conjunction with the bottom through hole and the push rod. The inner wall of the chamber is a smooth arc surface, further reducing adhesion and facilitating the smooth removal of the ingot. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of a material processing device used for vacuum induction melting of metallic materials; In the diagram: 1-Chemical device; 2-Pin shaft; 3-Top rod. Detailed Implementation

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] like Figure 1 As shown: A melting device for vacuum induction melting of metal materials includes a melting device 1 and a push rod 3. The bottom of the melting chamber of the melting device 1 has a through hole, and the push rod 3 is inserted into the through hole. The push rod 3 can block the through hole when the metal material is in a molten state, or push the ingot upward after the metal material solidifies to separate it from the melting device 1.

[0016] The material processing device 1 is made of ductile iron, which has high strength, high toughness, and excellent corrosion resistance, effectively preventing damage to the internal structure from high-temperature molten metal during long-term use. Ductile iron also has the advantages of long service life and low maintenance cost, making it a cost-effective option. The push rod 3 is made of refractory material to prevent it from sticking to the material processing device 1 at high temperatures.

[0017] The through hole is wider at the top and narrower at the bottom, and the side of the push rod 3 fits into the through hole. After the push rod 3 is inserted into the through hole from top to bottom, it is squeezed into the through hole by its own weight to form an effective sealing surface, which can effectively prevent the leakage of molten metal.

[0018] Specifically, the through hole is a conical hole, and the push rod 3 is a frustum. The angle of the push rod 3 when inserted into the through hole is not limited. The top end of the push rod 3 is flush with the top opening of the through hole, and the push rod 3 does not occupy the space of the melting chamber. The bottom end of the push rod 3 is flush with the bottom opening of the through hole, so the push rod 3 will not be lifted when the melting device 1 is placed on a flat surface.

[0019] The melting chamber of the material processing device 1 is wider at the top and narrower at the bottom; the top of the melting chamber of the material processing device 1 has a circular cross-section, the bottom end is aligned with the top opening of the through hole, and the middle is a smooth arc surface that is concave inward. The streamlined design of the melting chamber facilitates the rapid separation of the ingot from the device and improves the material mixing efficiency.

[0020] The outer side of the material processing device 1 is provided with two pairs of upper and lower pins 2. The ends of the pins 2 are anti-detachment bosses. The upper and lower pairs of pins 2 are connected to the lifting straps to lift the material processing device 1 and can also control the flipping of the material processing device 1.

[0021] The material processing device 1 is cylindrical, and the melting chamber and through hole are located at the center of the material processing device 1.

[0022] In use, the melting device 1 is placed inside a three-chamber vacuum furnace, with a pad at the bottom of the melting device 1 to suspend the ejector rod 3. During operation, the ejector rod 3 is first inserted to seal the through-hole at the bottom of the melting device 1. Then, the alloy is melted at high temperature into a liquid alloy and poured into the melting chamber of the melting device 1 from the top. After the molten metal cools and solidifies, demolding can be attempted: if demolding is successful, the ingot can be removed directly; if demolding is obstructed, a jack is placed below the ejector rod 3, and the jack applies a pushing force to the ejector rod 3, pushing the ingot out from bottom to top; thus achieving successful demolding.

[0023] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material processing device for vacuum induction melting of metallic materials, characterized in that: It includes a melting device (1) and a push rod (3). The bottom of the melting chamber of the melting device (1) has a through hole, and the push rod (3) is inserted into the through hole. The push rod (3) can block the through hole when the metal material is in a molten state, or push the ingot upward after the metal material solidifies so that it separates from the melting device (1).

2. The material processing device for vacuum induction melting of metallic materials according to claim 1, characterized in that: The through hole is wider at the top and narrower at the bottom, and the side of the push rod (3) fits into the through hole.

3. A material processing device for vacuum induction melting of metallic materials according to claim 2, characterized in that: The through hole is a conical hole, and the push rod (3) is a frustum. The top end of the push rod (3) is flush with the top opening of the through hole.

4. A material processing device for vacuum induction melting of metallic materials according to claim 3, characterized in that: The melting chamber of the material processing device (1) is wider at the top and narrower at the bottom.

5. A material processing device for vacuum induction melting of metallic materials according to claim 4, characterized in that: The melting chamber of the material processing device (1) has a circular cross-section at the top, the bottom end aligned with the top opening of the through hole, and a smooth arc surface that is concave inward in the middle.

6. A material processing device for vacuum induction melting of metallic materials according to any one of claims 1 to 4, characterized in that: The outer side of the material processing device (1) is provided with two pairs of pins (2), and the ends of the pins (2) are anti-detachment protrusions.

7. A material processing device for vacuum induction melting of metallic materials according to claim 3, characterized in that: The bottom end of the top rod (3) is flush with the bottom opening of the through hole.

8. A material processing device for vacuum induction melting of metallic materials according to claim 5, characterized in that: The material processing device (1) is a cylinder, and the melting chamber and through hole are located at the center of the material processing device (1).

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