Alloy feeding chamber of vacuum induction furnace

Abstract

The utility model discloses a vacuum induction furnace alloy feeding chamber which comprises a feeding chamber body, a hopper cover and six feeding cups, and six overturning handles are arranged on the outer side of the feeding chamber body in the circumferential direction of the feeding chamber body. The six charging cups are hung in the charging chamber body along the same circumference and connected with the six overturning handles in a one-to-one correspondence mode, and each overturning handle is used for rotating the corresponding charging cup. The hopper cover is arranged at the upper end opening of the feeding chamber body through a cover pivot; window glass is installed in the middle of the hopper cover, and a vacuum meter is arranged on the hopper cover. A manual vacuum breaking valve is mounted on the side wall of the feeding chamber body; the lower end opening of the feeding chamber body is connected with a vacuum cavity through a vacuum pipeline; a vacuum manual ball valve is arranged in the vacuum pipeline; and a feeding chute is arranged in the vacuum cavity. According to the alloy feeding chamber of the vacuum induction furnace, the multiple feeding cups are adopted, multi-variety and multi-batch continuous alloy feeding can be achieved in the smelting process, and a large amount of feeding time is saved.

Description

Technical Field

[0001] The utility model relates to an alloy charging chamber of a vacuum induction furnace. Background Art

[0002] With the rapid development of modern industry, people have higher and higher requirements for the use of mechanical parts. The increasingly harsh use environment has put forward changing requirements for the high temperature resistance, wear resistance, fatigue resistance and other properties of metal materials. For certain specific metal or alloy materials, whether it is early research and development or later mass production and use, research or obtaining high-performance metal alloy materials requires the support of metal smelting equipment, surface heat treatment equipment, etc. Among the many special heating or smelting methods, induction heating technology plays a vital role in the smelting and preparation of metal materials.

[0003] Vacuum induction melting technology is currently the most efficient, fastest, low-consumption, energy-saving and environmentally friendly induction heating technology for heating metal materials. This technology is mainly implemented on induction melting furnaces and other equipment, and has a wide range of applications. During the smelting process, since the entire process takes place in a vacuum environment, it is beneficial to remove gas impurities inside the metal, and the resulting metal alloy material is purer. At the same time, during the smelting process, through the control of the vacuum environment and induction heating, the melting temperature can be adjusted and the alloy metal can be replenished in time to achieve the purpose of refining. During the melting process, due to the characteristics of induction melting technology, the liquid metal material can be automatically stirred inside the crucible due to the interaction of electromagnetic forces, making the composition more uniform, which is also a major advantage of induction melting technology.

[0004] Compared with traditional smelting, vacuum induction melting is energy-saving, environmentally friendly, has a good working environment for workers, and has low labor intensity, which has great advantages. Using induction melting technology, the final cast alloy material has fewer impurities, the added alloy ratio is more appropriate, and can better meet the process requirements for various material properties. Vacuum induction melting furnace technology has been used on a large scale, from several kilograms of induction furnaces used for experimental research to large induction furnaces of dozens of tons of smelting for actual production. Due to its simple operating process, fast melting temperature rise, easy control of the smelting process, and uniform composition of the smelted metal, it has great application prospects and has developed rapidly in recent years.

[0005] The vacuum induction furnace is a complete set of vacuum smelting equipment that uses the principle of medium frequency induction heating under vacuum conditions to melt metals. It is also one of the important vacuum smelting equipment in the current metallurgical field for producing special alloy materials such as nickel-based high-temperature alloys, titanium alloys, stainless steel, and ultra-high strength steel.

[0006] The vacuum induction furnace is a very important and irreplaceable equipment for smelting and producing high-quality alloy steel. The vacuum system is a crucial system in the complete set of vacuum induction furnace equipment. The optimization and cleaning of the vacuum system is an indispensable and important link in the engineering design of the vacuum furnace. It is also the main research direction for improving the vacuum melting system's pumping performance and production efficiency. However, there is still a large gap between the current domestic and foreign technical levels, mainly in process equipment control and vacuum system detection instruments. Similar domestic vacuum equipment systems are too simple and rough, and the process control and sensor detection methods are simple, so the vacuum system has various drawbacks: vacuum pumps and vacuum valves are easily contaminated, have a high failure rate, and have a low service life.

[0007] At present, as the performance requirements for materials become higher and higher, more and more alloy elements are added to the materials, and the control of the order of adding alloys is becoming more and more strict. Utility Model Content

[0008] The purpose of the utility model is to overcome the defects of the prior art and provide a vacuum induction furnace alloy feeding chamber, which adopts multiple charging cups and can realize multi-variety and multi-batch continuous alloy feeding during the smelting process, saving a lot of feeding time.

[0009] The technical solution to achieve the above purpose is: a vacuum induction furnace alloy charging chamber, including a charging chamber body, a hopper cover and six charging cups, wherein:

[0010] The outer side of the feeding chamber body is provided with six flip handles along its circumference;

[0011] The six charging cups are suspended in the charging chamber body along the same circumference, and the six charging cups are connected to the six flip handles one by one, and each flip handle is used to rotate the corresponding charging cup;

[0012] The hopper cover is arranged at the upper end opening of the charging chamber body through a cover pivot;

[0013] A sight glass is installed in the middle of the hopper cover, and a vacuum gauge is provided on the hopper cover;

[0014] A manual air-breaking valve is installed on the side wall of the feeding chamber body;

[0015] The lower end opening of the feeding chamber body is connected to the vacuum cavity through a vacuum pipeline, and a vacuum manual ball valve is arranged in the vacuum pipeline;

[0016] A feeding chute is provided in the vacuum chamber;

[0017] An oil cylinder is installed outside the vacuum chamber, and an output end of the oil cylinder is connected to the feeding chute via a connecting shaft, and the oil cylinder drives the feeding chute to extend or retract.

[0018] The above-mentioned alloy charging chamber of a vacuum induction furnace, wherein the charging chamber body is hopper-shaped.

[0019] The above-mentioned alloy charging chamber of a vacuum induction furnace, wherein six charging rod mounting holes are opened on the side wall of the charging chamber body along its circumference, a charging rod is arranged in each charging rod mounting hole, the inner ends of the six charging rods are connected to the six charging cups one by one, and the six flip handles are inserted into the six charging rods one by one.

[0020] The above-mentioned alloy feeding chamber of a vacuum induction furnace, wherein a clamp is installed on the outside of the feeding chamber body, a lifting rotating shaft is vertically arranged in the clamping mounting block of the clamp, the cover pivot is horizontally arranged, one end of the cover pivot is connected to the hopper cover, and the other end is connected to the lifting rotating shaft.

[0021] In the above-mentioned vacuum induction furnace alloy charging chamber, a rotating handle is provided on the hopper cover.

[0022] The above-mentioned alloy feeding chamber of a vacuum induction furnace, wherein a vacuum sealing bearing seat is welded on one side of the vacuum cavity, the connecting shaft is arranged in the vacuum sealing bearing seat, one end of the connecting shaft is connected to the output end of the oil cylinder, and the other end is connected to the feeding chute through a connecting plate.

[0023] In the above-mentioned alloy charging chamber of a vacuum induction furnace, the oil cylinder is externally connected to a human-machine interface.

[0024] The alloy charging chamber of the vacuum induction furnace of the utility model adopts a plurality of charging cups, and can realize continuous alloy charging of multiple varieties and batches during the smelting process, thus saving a lot of charging time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view of the alloy charging chamber of the vacuum induction furnace of the utility model;

[0026] Figure 2 This is a front view of the alloy charging chamber of the vacuum induction furnace of the utility model;

[0027] Figure 3 It is a schematic diagram of the connection between the feeding chamber body and the vacuum cavity;

[0028] Figure 4 It is a schematic diagram of the connection between the oil pump and the feeding ramp. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the utility model, the specific implementation method thereof is described in detail below in conjunction with the accompanying drawings:

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The best embodiment of the utility model is an alloy charging chamber of a vacuum induction furnace, comprising a charging chamber body 1, a hopper cover 2 and six charging cups 3.

[0031] The feeding chamber body 1 is hopper-shaped. Six flip handles 31 are arranged on the outside of the feeding chamber body 1 along its circumference; six charging cups 3 are suspended in the feeding chamber body 1 along the same circumference, and the six charging cups 3 are connected to the six flip handles 31 one by one, and each flip handle 31 is used to rotate the corresponding charging cup 3; specifically, six charging rod mounting holes are opened on the side wall of the feeding chamber body 1 along its circumference, and a charging rod 32 is arranged in each charging rod mounting hole, and the inner ends of the six charging rods 32 are connected to the six charging cups 3 one by one, and the six flip handles 31 are plugged into the six charging rods 32 one by one.

[0032] The hopper cover 2 is arranged at the upper end opening of the charging chamber body 1 through the cover pivot 21; specifically, a clamp 8 is installed on the outside of the charging chamber body 1, and a lifting rotating shaft 82 is vertically arranged in the clamping mounting block 81 of the clamp 8, and the cover pivot 21 is arranged horizontally, one end of the cover pivot 21 is connected to the hopper cover 2, and the other end is connected to the lifting rotating shaft 82. A rotating handle (not shown in the figure) is arranged on the hopper cover 2. When it is necessary to open the hopper cover 2, first loosen the clamp 8, pull the lifting rotating shaft 82 upward, and rotate the cover pivot 21 connected to the lifting rotating shaft 82 by turning the rotating handle, and manually move the hopper cover 2 to the fully open position. When it is necessary to close the hopper cover 2, the cover pivot 21 connected to the lifting rotating shaft 82 is rotated by turning the rotating handle, and the hopper cover 2 is manually moved to completely cover the upper end opening of the charging chamber body 1. Then, the lifting rotating shaft 82 is pressed down to cover the hopper cover 2 on the upper end opening of the charging chamber body 1, and the clamp 8 is clamped.

[0033] A viewing window glass 22 is installed in the middle of the hopper cover 2, through which the feeding situation in the feeding chamber body 1 can be viewed. A vacuum gauge 23 is provided on the hopper cover 2 to facilitate observation of the pressure situation in the feeding chamber body 1.

[0034] A manual air-breaking valve (not shown in the figure) is installed on the side wall of the charging chamber body 1 , and the manual air-breaking valve is used for manually reducing the pressure of the charging chamber body 1 .

[0035] The lower end opening of the feeding chamber body 1 is connected to the vacuum cavity 4 through a vacuum pipe 12, and a vacuum manual ball valve 13 is arranged in the vacuum pipe 12;

[0036] A feeding chute 5 is provided in the vacuum chamber 4; an oil cylinder 6 is installed outside the vacuum chamber 4, and the oil cylinder 6 is provided on an oil cylinder mounting base 61. The output end of the oil cylinder 6 is connected to the feeding chute 5 through a connecting shaft, and the oil cylinder 6 drives the feeding chute 5 to extend or retract. Specifically, a vacuum sealing bearing seat 41 is welded on one side of the vacuum chamber 4, and a connecting shaft is provided in the vacuum sealing bearing seat 41. One end of the connecting shaft is connected to the output end of the oil cylinder 6, and the other end is connected to the feeding chute 5 through a connecting plate. The oil cylinder 6 is externally connected to a human-machine interface.

[0037] The alloy charging chamber of the vacuum induction furnace of the utility model, when processing, first manually open the hopper cover 2, and put several alloy elements into the six charging cups 3 in sequence according to the requirements of the smelting process. Manually close the hopper cover 2, open the vacuum manual ball valve 13 installed in the vacuum pipeline 12 connected to the vacuum cavity 4, and evacuate the charging chamber body 1 to make the vacuum degree of the charging chamber body 1 consistent with the vacuum degree of the vacuum cavity 4. According to the process requirements, when alloy elements need to be added during the smelting process, the oil cylinder 6 is controlled to work through the human-machine interface, and the oil cylinder 6 drives the charging ramp 5 to extend, so that the charging ramp 5 is moved above the crucible and the lower end of the charging ramp 5 is facing the center of the crucible, and the upper end is aligned with the vacuum pipeline 12. Manually flip the flip handle 31 of the charging cup 3, and add the required alloy elements one by one into the molten steel in the crucible through the vacuum pipeline 12 and the charging ramp 5, and check the pouring situation through the window glass 22 in the hopper cover 2. After the feeding is completed, the oil cylinder 6 is controlled to work in the human-machine interface, and the oil cylinder 6 drives the feeding ramp 5 to retract to the edge of the vacuum chamber 4. Close the vacuum manual ball valve 13 in the vacuum pipe 12. Open the manual air-breaking valve on the side wall of the feeding chamber body 1 to break the air into the atmosphere of the feeding chamber body 1. Observe whether the feeding chamber body 1 is in a vacuum state or an atmospheric state through the vacuum gauge 23 installed on the hopper cover 2.

[0038] In summary, the alloy charging chamber of the vacuum induction furnace of the utility model adopts multiple charging cups, which can realize continuous alloy charging of multiple varieties and batches during the smelting process, saving a lot of charging time.

[0039] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A vacuum induction furnace alloy charging chamber, characterized in that: It includes a feeding chamber body, a hopper cover and six charging cups, including: The outer side of the feeding chamber body is provided with six flip handles along its circumference; The six charging cups are suspended in the charging chamber body along the same circumference, and the six charging cups are connected to the six flip handles one by one, and each flip handle is used to rotate the corresponding charging cup; The hopper cover is arranged at the upper end opening of the charging chamber body through a cover pivot; A viewing window glass is installed in the middle of the hopper cover, and a vacuum gauge is provided on the hopper cover; A manual air-breaking valve is installed on the side wall of the feeding chamber body; The lower end opening of the feeding chamber body is connected to the vacuum cavity through a vacuum pipeline, and a vacuum manual ball valve is arranged in the vacuum pipeline; A feeding chute is provided in the vacuum chamber; An oil cylinder is installed outside the vacuum chamber, and an output end of the oil cylinder is connected to the feeding chute via a connecting shaft, and the oil cylinder drives the feeding chute to extend or retract.

2. The alloy charging chamber of a vacuum induction furnace according to claim 1, characterized in that: The feeding chamber body is in the shape of a hopper.

3. The alloy charging chamber of a vacuum induction furnace according to claim 1, characterized in that: Six loading rod mounting holes are opened on the side wall of the feeding chamber body along its circumference, and a loading rod is arranged in each loading rod mounting hole. The inner ends of the six loading rods are connected to the six charging cups one by one, and the six flip handles are inserted into the six loading rods one by one.

4. The alloy charging chamber of a vacuum induction furnace according to claim 1, characterized in that: A clamp is installed on the outer side of the feeding chamber body, a lifting rotating shaft is vertically arranged in the clamping mounting block of the clamp, the cover pivot is arranged horizontally, one end of the cover pivot is connected to the hopper cover, and the other end is connected to the lifting rotating shaft.

5. The alloy charging chamber of a vacuum induction furnace according to claim 4, characterized in that: The hopper cover is provided with a rotating handle.

6. The alloy charging chamber of a vacuum induction furnace according to claim 1, characterized in that: A vacuum sealing bearing seat is welded on one side of the vacuum chamber, the connecting shaft is arranged in the vacuum sealing bearing seat, one end of the connecting shaft is connected to the output end of the oil cylinder, and the other end is connected to the feeding chute through a connecting plate.

7. The alloy charging chamber of a vacuum induction furnace according to claim 1, characterized in that: The oil cylinder is externally connected to a human-machine interface.

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