Auxiliary composite device for Cu-Fe alloy smelting, stirring and casting test

Abstract

The utility model provides an auxiliary compound device for Cu-Fe alloy smelting stirring casting test, which comprises a medium frequency induction smelting furnace, a sealing cover assembly and a stirring assembly, the sealing cover assembly comprises a base, a stand column, a sealing cover, a vertical support and a fixing platform, the fixing platform is connected with the stand column, and the sealing cover is arranged on the base. The sealing cover covers the medium-frequency induction melting furnace, and the fixed platform and the sealing cover are connected through the vertical support; smelting materials are contained in the medium-frequency induction smelting furnace, the stirring assembly comprises a motor and a stirring rod, the upper end of the stirring rod is connected with the output end of the motor, and the lower end of the stirring rod sequentially penetrates through the fixing platform and the sealing cover and then enters the medium-frequency induction smelting furnace; and a ceramic stirring blade is mounted at the lower part of the stirring rod. According to the device, oxidation of copper liquid in the smelting and stirring casting process is effectively avoided, adding and mechanical stirring of iron powder can be achieved, and therefore the accurate control capacity of a test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy materials, in particular to an auxiliary composite device for Cu-Fe alloy smelting, stirring and casting experiments. Background Art

[0002] Cu-Fe alloy is an important high-strength and high-conductivity alloy that uses Fe to strengthen the Cu matrix to improve the strength of the alloy and maintain the high conductivity of the Cu matrix. However, in the preparation of Cu-Fe alloy, the traditional melting and casting method is used, and there are problems such as uneven distribution of Fe particles in the matrix and a large amount of solid-solubilized Fe in the Cu matrix, which greatly reduces the conductivity. The method of adding Fe powder to molten Cu liquid for stirring casting is conducive to obtaining a Cu-Fe alloy in which Fe is evenly distributed in the Cu matrix and the diffusion of Fe into the Cu matrix is ​​effectively suppressed.

[0003] In the experiment of preparing Cu-Fe alloy by melting and stirring casting, since the density of Fe is lower than that of Cu, when Fe powder is added to the Cu liquid, the Fe powder tends to float on the surface of the Cu liquid, especially under the protection of argon gas. The Fe powder is particularly easy to be blown away and lost, which greatly increases the difficulty of accurately controlling the Fe content in the Cu-Fe alloy.

[0004] In order to solve the above problems, an auxiliary composite device for Cu-Fe alloy melting and stirring casting experiments is needed. Utility Model Content

[0005] The utility model aims to provide an auxiliary composite device for Cu-Fe alloy smelting stirring casting test, which solves the problem that directly added iron powder is easy to float in copper liquid, and promotes uniform distribution of iron powder in copper liquid by stirring.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An auxiliary composite device for a Cu-Fe alloy smelting and stirring casting experiment comprises a medium-frequency induction melting furnace, a cover assembly and a stirring assembly, wherein the cover assembly comprises a base, a column, a cover, a vertical bracket and a fixed platform, the base is used to support the column, the fixed platform is connected to the column, the cover covers the medium-frequency induction melting furnace, the fixed platform is located above the cover, and the fixed platform and the cover are connected through the vertical bracket; the medium-frequency induction melting furnace contains smelting materials, and the stirring assembly is used to stir the smelting materials in the medium-frequency induction melting furnace; the stirring assembly comprises a motor and a stirring rod, the motor is arranged on the fixed platform, the upper end of the stirring rod is connected to the output end of the motor, and the lower end of the stirring rod passes through the fixed platform and the cover in sequence and then enters into the medium-frequency induction melting furnace; a ceramic stirring blade is installed at the lower part of the stirring rod.

[0008] Furthermore, in the above-mentioned auxiliary composite device for the Cu-Fe alloy smelting and stirring casting test, the cover assembly also includes a base and a column, the base is provided with a circular hole, the lower end of the column is inserted into the circular hole, and the column can rotate in the circular hole; one end of the fixed platform is connected to the column, and the other end of the fixed platform extends to the top of the medium frequency induction melting furnace; the cover assembly can move as a whole, and through the overall movement of the cover assembly and the rotation of the column, the cover can be covered on the medium frequency induction melting furnace or removed from the medium frequency induction melting furnace; the height of the column is adjustable.

[0009] Furthermore, in the above-mentioned auxiliary composite device for the Cu-Fe alloy smelting stirring casting experiment, the cover assembly also includes a horizontal bracket, one end of the horizontal bracket is connected to the column, and the other end of the horizontal bracket is connected to the outer wall of the cover; the upper end of the vertical bracket is connected to the bottom surface of the fixed platform, and the lower end of the vertical bracket is connected to the outer wall of the cover, the vertical bracket is inclined, and the distance between the upper end of the vertical bracket and the axis of the cover is greater than the distance between the lower end of the vertical bracket and the axis of the cover; two vertical brackets are provided, and the two vertical brackets are symmetrically arranged relative to the axis of the cover.

[0010] Furthermore, in the auxiliary composite device for the above-mentioned Cu-Fe alloy smelting stirring casting experiment, the output end of the motor is connected to a first bevel gear, the upper end of the stirring rod is equipped with a second bevel gear, and the first bevel gear and the second bevel gear are meshed.

[0011] Furthermore, in the above-mentioned auxiliary composite device for the Cu-Fe alloy smelting and stirring casting experiment, a through hole is provided on the fixed platform, a thrust bearing is installed on the upper surface of the fixed platform, the inner diameter of the shaft ring of the thrust bearing is smaller than the inner diameter of the through hole, and the lower end of the stirring rod passes through the fixed platform through the thrust bearing and the through hole; the shaft ring of the thrust bearing is interference fit with the stirring rod.

[0012] Furthermore, in the auxiliary composite device of the above-mentioned Cu-Fe alloy smelting stirring casting experiment, a gas blowing ring tube is fixed to the lower end of the inner wall of the cover, and a plurality of blowing vents are arranged on the gas blowing ring tube. The plurality of blowing vents are evenly distributed along the length direction of the blowing ring tube, and protective gas is sprayed into the medium frequency induction melting furnace through the blowing vents.

[0013] Furthermore, in the above-mentioned auxiliary composite device for the Cu-Fe alloy smelting and stirring casting experiment, the motor is arranged on the fixed platform, the upper end of the stirring rod is located above the fixed platform, the lower end of the stirring rod is inserted into the interior of the cover through the upper end hole of the cover, and a limit support card is installed on the stirring rod. The limit support card is a rectangular structure, and the limit support card is located above the ceramic stirring blade. The upper end of the cover has a support card through groove, and the support card is adapted to the limit support card through the groove. The limit support card can be supported on the upper end of the cover or enter the cover through the groove by the support card.

[0014] Furthermore, in the auxiliary composite device of the above-mentioned Cu-Fe alloy smelting stirring casting experiment, an iron powder copper bag is provided on the ceramic stirring blade, and the iron powder copper bag is tied to the stirring blade by copper wire, and the iron powder is wrapped with pure copper skin to form the iron powder copper bag.

[0015] Furthermore, in the above-mentioned auxiliary composite device for the Cu-Fe alloy smelting stirring casting experiment, two pairs of ceramic stirring blades are provided.

[0016] Furthermore, in the auxiliary composite device for the above-mentioned Cu-Fe alloy smelting stirring casting experiment, the middle part of the cover bulges upward and forms a receiving cavity inside the cover, and the receiving cavity can accommodate the stirring rod under the limiting support card.

[0017] It can be seen from the analysis that the utility model discloses an auxiliary composite device for Cu-Fe alloy smelting and stirring casting test, which integrates the functions of protective atmosphere blowing, feeding and mechanical stirring, effectively avoiding the oxidation of molten copper during smelting and stirring casting, and can realize the addition and mechanical stirring of iron powder, thereby improving the precise control ability of the test. The device effectively overcomes the problems of light specific gravity of iron powder, easy floating on the surface of molten copper, and difficult control of the addition amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Explanation of the reference numerals: 1 base; 2 column; 3 horizontal bracket; 4 fixed platform; 5 motor; 6 first bevel gear; 7 second bevel gear; 8 stirring rod; 9 thrust bearing; 10 support card through slot; 11 vertical bracket; 12 cover; 13 gas injection ring pipe; 14 injection vent; 15 limit support card; 16 ceramic stirring blade; 17 copper wire; 18 iron powder copper bag; 19 medium frequency induction melting furnace; 20 accommodating chamber. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention includes such modifications and variations within the scope of the appended claims and their equivalents.

[0022] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] One or more examples of the utility model are shown in the attached drawings. The detailed description uses numbers and letters to refer to the features in the drawings. Similar or similar marks in the drawings and descriptions have been used to refer to similar or similar parts of the utility model. As used herein, the terms "first", "second", and "third" etc. are used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0024] like Figure 1 As shown, according to an embodiment of the utility model, an auxiliary composite device for Cu-Fe alloy smelting and stirring casting test is provided, including a medium frequency induction melting furnace 19, a cover assembly and a stirring assembly, the cover assembly including a base 1, a column 2, a cover 12, a vertical bracket 11 and a fixed platform 4, wherein the base 1 is used to support the column 2, the fixed platform 4 is connected to the column 2, the cover 12 covers the medium frequency induction melting furnace 19, the fixed platform 4 is located above the cover 12, and the fixed platform 4 and the cover 12 are connected through the vertical bracket 11; the medium frequency induction melting furnace 19 contains smelting materials, and the stirring assembly is used to stir the smelting materials in the medium frequency induction melting furnace 19; the stirring assembly includes a motor 5 and a stirring rod 8, the motor 5 is arranged on the fixed platform 4, the upper end of the stirring rod 8 is connected to the output end of the motor 5, and the lower end of the stirring rod 8 passes through the fixed platform 4 and the cover 12 in turn and then enters into the medium frequency induction melting furnace 19; a ceramic stirring blade 16 is installed at the lower part of the stirring rod 8. By adding iron powder to the pure copper smelting material in the medium frequency induction melting furnace 19, and using the stirring rod 8 to fully stir the smelting material, the melted material is cast into an ingot mold to form a Cu-Fe alloy. Stirring the smelting material with added iron powder effectively overcomes the problem that the iron powder has a light specific gravity and is easy to float on the surface of the copper liquid. Using this device to conduct experiments, the Cu-Fe alloy smelting and stirring casting preparation technology can be explored.

[0025] Furthermore, the cover assembly also includes a base 1 and a column 2. The base 1 is provided with a circular hole, the lower end of the column 2 is inserted into the circular hole, and the column 2 can rotate in the circular hole; one end of the fixed platform 4 is connected to the column 2, and the other end of the fixed platform 4 extends to the top of the medium frequency induction melting furnace 19; the cover assembly can move as a whole in a direction parallel to the ground, and through the overall movement of the cover assembly and the rotation of the column 2, the cover 12 can be easily covered on the medium frequency induction melting furnace 19 or removed from the medium frequency induction melting furnace 19. The height of the column 2 is adjustable, and the cover 12 can be raised or lowered by adjusting the height of the column 2.

[0026] Furthermore, the cover assembly also includes a horizontal bracket 3, one end of which is connected to the column 2, and the other end of which is connected to the outer wall of the cover 12; the upper end of the vertical bracket 11 is connected to the bottom surface of the fixed platform 4, and the lower end of the vertical bracket 11 is connected to the outer wall of the cover 12. The vertical bracket 11 is arranged obliquely, and the distance between the upper end of the vertical bracket 11 and the axis of the cover 12 is greater than the distance between the lower end of the vertical bracket 11 and the axis of the cover 12; there are two vertical brackets 11, and the two vertical brackets 11 are symmetrically arranged relative to the axis of the cover 12. The horizontal bracket 3 and the vertical bracket 11 provide fixed support for the cover 12 to ensure the stability of the cover 12.

[0027] Furthermore, the output end of the motor 5 is connected to the first bevel gear 6, and the upper end of the stirring rod 8 is installed with the second bevel gear 7, and the first bevel gear 6 and the second bevel gear 7 are meshed. Through the transmission of the first bevel gear 6 and the second bevel gear 7, the motor 5 can drive the stirring rod 8 to rotate, and the rotation of the stirring rod 8 can achieve stirring of the smelting material.

[0028] Furthermore, a through hole is provided on the fixed platform 4, and a thrust bearing 9 is installed on the upper surface of the fixed platform 4. The inner diameter of the shaft ring of the thrust bearing 9 is smaller than the inner diameter of the through hole, and the lower end of the stirring rod 8 passes through the fixed platform 4 through the thrust bearing 9 and the through hole; the shaft ring of the thrust bearing 9 and the stirring rod 8 are interference fit. The thrust bearing 9 can reduce the rotation resistance of the stirring rod 8.

[0029] Furthermore, a gas blowing ring tube 13 is fixed to the lower end of the inner wall of the cover 12, and a plurality of blowing vents 14 facing downward are arranged on the gas blowing ring tube 13, and the plurality of blowing vents 14 are evenly distributed along the length direction of the gas blowing ring tube 13, and protective gas is blown into the medium frequency induction melting furnace 19 through the blowing vents 14. After the pure copper smelting material in the medium frequency induction melting furnace 19 is heated, protective gas is blown into the medium frequency induction melting furnace 19 through the gas blowing ring tube 13, and the protective gas is blown above the pure copper smelting material. The temperature of the pure copper smelting material increases, causing the protective gas to rise, and then exhausting the air in the medium frequency induction melting furnace 19, so that the pure copper smelting material is prevented from being oxidized while the temperature is increased. Compared with the traditional method of directly blowing protective gas above the melting furnace, this method can not only save protective gas, but also effectively prevent the outside air from flowing into the medium frequency induction melting furnace 19.

[0030] Furthermore, the motor 5 is arranged on the fixed platform 4, the upper end of the stirring rod 8 is located above the fixed platform 4, the lower end of the stirring rod 8 is inserted into the interior of the cover 12 through the upper end hole of the cover 12, and a limiting support card 15 is installed on the stirring rod 8. The limiting support card 15 is a rectangular structure. The limiting support card 15 is located above the ceramic stirring blade 16. The upper end of the cover 12 has a support card through groove 10, and the support card through groove 10 is adapted to the limiting support card 15. The limiting support card 15 can be supported on the upper end of the cover 12 or enter the cover 12 by the support card through groove 10.

[0031] Furthermore, an iron powder copper bag 18 is provided on the ceramic stirring blade 16, and the iron powder copper bag 18 is tied to the stirring blade by a copper wire 17, and the copper wire is a pure copper wire, and the iron powder is wrapped with a pure copper skin to form the iron powder copper bag 18. Such a setting can accurately control the amount of iron powder added, thereby ensuring that the Cu-Fe alloy meets the requirements.

[0032] Furthermore, two pairs of ceramic stirring blades 16 are provided. Such a configuration can fully stir the smelting material.

[0033] Furthermore, the middle part of the cover 12 bulges upward and forms a receiving cavity 20 inside the cover 12, and the receiving cavity 20 can accommodate the stirring rod 8 below the limit support card 15. After the stirring rod 8 is lifted to make the limit support card 15 pass through the support card through slot 10, the stirring rod 8 is rotated 90 degrees, at which time the limit support card 15 is stuck on the upper surface of the cover 12, and the stirring rod 8 below the limit support card 15 is completely located in the receiving cavity 20 of the cover 12, so that the cover 12 can be easily covered on the medium frequency induction melting furnace 19, or the cover 12 can be removed from the medium frequency induction melting furnace 19.

[0034] The method of using the device is as follows: move the base 1 to one side of the medium frequency induction melting furnace 19, add pure copper smelting materials into the medium frequency induction melting furnace 19, wrap the iron powder to be added with pure copper skin and compact it to form an iron powder copper bag 18, tie the iron powder copper bag 18 to the ceramic stirring blade 16 with pure copper wire 17, pull the stirring rod 8 to the position where the limit support card 15 can clamp the upper end surface of the cover 12, at this time, the lower end surface of the stirring rod 8 is recovered into the accommodating cavity 20 of the cover 12, and then rotate the column 2 to move the cover 12 to the top of the medium frequency induction melting furnace 19, and adjust the height of the column 2 so that the lower end surface of the cover 12 is placed on the upper end surface of the medium frequency induction melting furnace 19.

[0035] Start the medium frequency induction smelting furnace 19, and after the smelting material is completely melted and reaches the expected temperature and other states, rotate the stirring rod 8 so that the limit support card 15 can enter the support card through the slot 10, and then insert the stirring rod 8 with the iron powder copper bag 18 into the molten copper liquid until the second bevel gear 7 at the upper end of the stirring rod 8 and the first bevel gear 6 on the motor 5 are meshed with each other, and then start the motor 5 to drive the stirring rod 8 to stir. During the stirring process, the copper skin wrapped by the iron powder copper bag 18 will gradually be melted to release the internal iron powder, and evenly distributed in the copper liquid under the stirring action. After the stirring reaches the predetermined time, the copper liquid with added iron powder is poured into the ingot mold for casting and forming for later processing to form a Cu-Fe alloy.

[0036] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0037] An auxiliary composite device for Cu-Fe alloy smelting and stirring casting experiments, which integrates protective atmosphere blowing, feeding and mechanical stirring functions, effectively avoids oxidation of molten copper during smelting and stirring casting, and can realize the addition and mechanical stirring of iron powder, thereby improving the precise control ability of the experiment. The device effectively overcomes the problems of light specific gravity of iron powder, easy floating on the surface of molten copper, and difficult addition amount control.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An auxiliary composite device for Cu-Fe alloy smelting and stirring casting test, characterized in that: It includes a medium frequency induction melting furnace, a cover assembly and a stirring assembly, wherein: The cover assembly includes a base, a column, a cover, a vertical bracket and a fixed platform, wherein the base is used to support the column, and the fixed platform is connected to the column. The cover is covered on the medium frequency induction melting furnace, the fixed platform is located above the cover, and the fixed platform and the cover are connected through the vertical bracket; The medium frequency induction smelting furnace contains smelting materials, and the stirring assembly is used to stir the smelting materials in the medium frequency induction smelting furnace; The stirring assembly comprises a motor and a stirring rod, wherein the motor is arranged on the fixed platform, the upper end of the stirring rod is connected to the output end of the motor, and the lower end of the stirring rod sequentially passes through the fixed platform and the cover and then enters into the medium frequency induction melting furnace; A ceramic stirring blade is installed at the lower part of the stirring rod, and an iron powder copper bag is arranged on the ceramic stirring blade.

2. The auxiliary composite device for Cu-Fe alloy smelting stirring casting test according to claim 1, characterized in that: The cover assembly further comprises a base and a column, wherein the base is provided with a circular hole, the lower end of the column is inserted into the circular hole, and the column can rotate in the circular hole; One end of the fixed platform is connected to the column, and the other end of the fixed platform extends above the medium frequency induction melting furnace; The cover assembly can move as a whole, and the cover can be covered on the medium frequency induction melting furnace or removed from the medium frequency induction melting furnace through the overall movement of the cover assembly and the rotation of the column; The height of the column is adjustable.

3. The auxiliary composite device for Cu-Fe alloy smelting stirring casting test according to claim 1, characterized in that: The cover assembly further comprises a horizontal bracket, one end of which is connected to the column, and the other end of which is connected to the outer wall of the cover; The upper end of the vertical bracket is connected to the bottom surface of the fixed platform, the lower end of the vertical bracket is connected to the outer wall of the cover, the vertical bracket is inclined, and the distance between the upper end of the vertical bracket and the axis of the cover is greater than the distance between the lower end of the vertical bracket and the axis of the cover; Two vertical brackets are provided, and the two vertical brackets are symmetrically arranged relative to the axis of the cover.

4. The auxiliary composite device for Cu-Fe alloy smelting stirring casting test according to claim 1, characterized in that: The output end of the motor is connected to a first bevel gear, the upper end of the stirring rod is installed with a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

5. The auxiliary composite device for Cu-Fe alloy smelting and stirring casting test according to claim 1, characterized in that: The fixed platform is provided with a through hole, a thrust bearing is installed on the upper surface of the fixed platform, the inner diameter of the shaft ring of the thrust bearing is smaller than the inner diameter of the through hole, and the lower end of the stirring rod passes through the fixed platform through the thrust bearing and the through hole; The shaft ring of the thrust bearing is interference fit with the stirring rod.

6. The auxiliary composite device for Cu-Fe alloy smelting and stirring casting test according to claim 1, characterized in that: A gas blowing ring tube is fixed to the lower end of the inner wall of the cover, and a plurality of blowing vents are arranged on the gas blowing ring tube. The plurality of blowing vents are evenly distributed along the length direction of the blowing ring tube, and protective gas is sprayed into the medium frequency induction melting furnace through the blowing vents.

7. The auxiliary composite device for Cu-Fe alloy smelting and stirring casting test according to claim 1, characterized in that: The motor is arranged on the fixed platform, and the upper end of the stirring rod is located above the fixed platform. The lower end of the stirring rod is inserted into the interior of the cover through the upper end hole of the cover. The stirring rod is provided with a limit support card, the limit support card is a rectangular parallelepiped structure, and the limit support card is located above the ceramic stirring blade. The upper end of the cover has a support card passing slot, the support card passing slot is adapted to the limit support card, and the limit support card can be supported on the upper end of the cover or enter the cover through the support card passing slot.

8. The auxiliary composite device for Cu-Fe alloy smelting and stirring casting test according to claim 1, characterized in that: The iron powder copper bag is tied to the stirring blade by copper wire, and the iron powder is wrapped with pure copper to form the iron powder copper bag.

9. The auxiliary composite device for Cu-Fe alloy smelting and stirring casting test according to claim 1, characterized in that: The ceramic stirring blades are provided in two pairs.

10. The auxiliary composite device for Cu-Fe alloy smelting and stirring casting test according to claim 7, characterized in that: The middle part of the cover bulges upward and forms a receiving cavity inside the cover, and the receiving cavity can accommodate the stirring rod below the limiting support card.

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