Alloy micro powder heat treatment device

Abstract

The utility model relates to the technical field of alloy micro powder processing, in particular to an alloy micro powder heat treatment device, which is characterized in that a feed port at the top end of a heating furnace is connected to a feeding device, a coil is connected into alternating current control equipment, and during feeding, an electric push rod is started to pull up a feed rod, so that the feed port at the top end of the heating furnace is opened; the feeding device conveys alloy micro powder into the heating furnace, after conveying, the electric push rod downwards pushes the feeding rod to enable the feeding rod to block a feeding port of the heating furnace, the vacuum pump is started to pump out air in the heating furnace through the exhaust pipe, the interior of the heating furnace is kept in a nearly vacuum state, and after the coil is connected with alternating current, an alternating magnetic field can be generated; the alloy micro-powder is located in the alternating magnetic field and can generate induction current, so that the alloy micro-powder can also be heated in a vacuum environment, air in the heating furnace is pumped out through the vacuum pump, contact between the alloy micro-powder and oxygen in the heating process is reduced, and the effect of avoiding oxidation caused by heat treatment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy micropowder processing, in particular to an alloy micropowder heat treatment device. Background Art

[0002] Spherical powders have good fluidity, which makes them perform well in precision manufacturing technologies such as 3D printing, powder metallurgy and injection molding. The spheroidization process can make the composition in the alloy powder more uniform, thereby improving the performance of the final product. Through the spheroidization treatment, the aggregation between particles can be effectively inhibited and the stability of the powder can be maintained.

[0003] Existing Chinese patent: A metal material heat treatment furnace, patent number: CN219930188U, including a heat treatment furnace body, the surface of the heat treatment furnace body is fixedly connected with a controller, the inner walls on both sides of the heat treatment furnace body are fixedly connected with guide plates, a bearing plate is slidably connected between the two guide plates, and a receiving groove is provided on the surface of the bearing plate; a high temperature resistant box, the high temperature resistant box is arranged in the receiving groove, the surface of the high temperature resistant box is fixedly connected with a frame-shaped baffle, the inner walls on the four sides of the baffle are provided with a plurality of slots, and a first partition and a second partition placed crosswise are provided between the plurality of slots. The utility model can reasonably plan the surface space of the high temperature resistant box according to the size of the material, improve the scope of application of the equipment, and provide stable support for the high temperature resistant box when it extends out of the heat treatment furnace, so as to facilitate people to take and place the high temperature resistant box.

[0004] However, in the process of implementing the above technical solution, it was found that there are at least the following technical problems: the presence of air inside the above-mentioned heat treatment furnace will cause a certain degree of oxidation on the metal surface during heating, and the individual particles of the alloy micropowder are small, and the overall contact area with the air is large, and the degree of oxidation is more serious. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides an alloy micropowder heat treatment device to solve the technical problem that the presence of air in the heat treatment furnace mentioned above will cause a certain degree of oxidation on the metal surface during heating, while the individual particles of the alloy micropowder are small and the overall contact area with the air is large, resulting in a serious degree of oxidation.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A device for heat treatment of alloy micropowder comprises a heating furnace, an exhaust pipe is fixedly installed on the top of the heating furnace, a vacuum pump is fixedly installed on the end of the exhaust pipe, a feed rod is slidably installed on the top of the heating furnace, a vacuum insulation layer is provided inside the heating furnace, a coil is fixedly installed on the outer wall of the heating furnace, a motor is fixedly installed on the top of the heating furnace, a discharge rod is threadedly installed inside the heating furnace, a first bevel gear is slidably installed on the top of the discharge rod, a spring is fixedly installed on the top of the feed rod, and an electric push rod is fixedly installed on the top of the feed rod.

[0010] Preferably: a second bevel gear is fixedly mounted on a side end of the motor; the second bevel gear is meshed with the first bevel gear.

[0011] Preferably, a furnace shell is fixedly installed outside the heating furnace.

[0012] (III) Beneficial effects

[0013] 1. When the vacuum pump is started, the air inside the heating furnace will be extracted through the exhaust pipe to keep the inside of the heating furnace in a near vacuum state. After the coil is connected to alternating current, an alternating magnetic field will be generated. The alloy micropowder in the alternating magnetic field will generate an induced current, so that the alloy micropowder can be heated in a vacuum environment. The air inside the heating furnace is extracted through the vacuum pump to reduce the contact of the alloy micropowder with oxygen during the heating process, thereby achieving the effect of avoiding oxidation caused by heat treatment.

[0014] Second, the coil can heat the alloy powder inside and outside at the same time, avoiding problems caused by local overheating of the alloy powder. The vacuum insulation layer of the vacuum insulation layer plays a role in heat preservation for the alloy powder at the bottom, so that the alloy powder will not cool down too quickly and can meet the process specifications of the heat treatment. The vacuum insulation layer and the coil complete the heating and slow cooling of the alloy powder, achieving the effect of improving the level of heat treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 This is a structural diagram of a bevel gear of the utility model;

[0017] Figure 2 This is a structural diagram of a heating furnace of the utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the furnace shell of the utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of a heating furnace of the present utility model;

[0020] Figure 5 It is a partial cross-sectional structural diagram of the heating furnace of the present utility model.

[0021] Legend: 1. Heating furnace; 2. Vacuum insulation layer; 3. Coil; 4. Discharge rod; 5. First bevel gear; 6. Feed rod; 7. Spring; 8. Furnace shell; 9. Exhaust pipe; 11. Vacuum pump; 12. Motor; 13. Second bevel gear; 14. Electric push rod. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides an alloy micropowder heat treatment device, which effectively solves the technical problem that the air in the heat treatment furnace mentioned above will cause a certain degree of oxidation on the metal surface during heating, and the individual particles of the alloy micropowder are small, and the overall contact area with the air is large, and the degree of oxidation is relatively serious. When the vacuum pump is started, the air inside the heating furnace will be extracted through the exhaust pipe, so that the inside of the heating furnace is kept in a near vacuum state. After the coil is connected to alternating current, an alternating magnetic field will be generated. The alloy micropowder in the alternating magnetic field will generate an induced current, so that the alloy micropowder can be heated in a vacuum environment. The air inside the heating furnace is extracted by the vacuum pump to reduce the contact of the alloy micropowder with oxygen during the heating process, thereby achieving the effect of avoiding oxidation caused by heat treatment. The coil can heat the alloy micropowder inside and outside at the same time, avoiding problems caused by local overheating of the alloy micropowder. The vacuum insulation layer of the vacuum insulation layer plays a role in heat preservation for the alloy micropowder at the bottom, so that the alloy micropowder will not cool too quickly and can meet the process specifications of the heat treatment. The heating and slow cooling of the alloy micropowder are completed by the vacuum insulation layer and the coil, thereby achieving the effect of improving the level of the heat treatment process. Example

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the air in the heat treatment furnace mentioned above will cause a certain degree of oxidation on the metal surface during heating, and the individual particles of the alloy micropowder are small, and the overall contact area with the air is large, and the degree of oxidation is relatively serious. The overall idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides an alloy micropowder heat treatment device, including a heating furnace 1, an exhaust pipe 9 is fixedly installed on the top of the heating furnace 1, a vacuum pump 11 is fixedly installed on the end of the exhaust pipe 9, a feed rod 6 is slidably installed on the top of the heating furnace 1, and a vacuum insulation layer 2 is opened inside the heating furnace 1.

[0025] The outer wall of the heating furnace 1 is fixedly mounted with a coil 3 , the top of the heating furnace 1 is fixedly mounted with a motor 12 , the inner thread of the heating furnace 1 is mounted with a discharge rod 4 , and the top of the discharge rod 4 is slidably mounted with a first bevel gear 5 .

[0026] A spring 7 is fixedly installed on the top of the feed rod 6, an electric push rod 14 is fixedly installed on the top of the feed rod 6, and a second bevel gear 13 is fixedly installed on the side end of the motor 12; the second bevel gear 13 is meshed with the first bevel gear 5, and a furnace shell 8 is fixedly installed on the outside of the heating furnace 1.

[0027] Working principle:

[0028] The first step is to connect the feed port at the top of the heating furnace 1 to the feeding device, and connect the coil 3 to the AC control device. When feeding, the electric push rod 14 is started to pull the feed rod 6 upward to open the feed port at the top of the heating furnace 1, and the feeding device transports the alloy powder to the inside of the heating furnace 1. After transportation, the electric push rod 14 pushes the feed rod 6 downward to block the feed port of the heating furnace 1. The vacuum pump 11 is started to extract the air inside the heating furnace 1 through the exhaust pipe 9, so that the inside of the heating furnace 1 is kept in a near vacuum state. After the coil 3 is connected to alternating current, an alternating magnetic field will be generated. The alloy powder will generate an induced current in the alternating magnetic field, so that the alloy powder can be heated in a vacuum environment. The air inside the heating furnace 1 is extracted by the vacuum pump 11 to reduce the contact of the alloy powder with oxygen during the heating process, thereby achieving the effect of avoiding oxidation caused by heat treatment.

[0029] In the second step, after the coil 3 is connected to the alternating current, an alternating magnetic field will be generated. The alloy micropowder in the alternating magnetic field will generate an induced current, which not only allows the alloy micropowder to be heated in a vacuum environment, but also is different from the traditional method of heating from the outside to the inside through heat transfer. The coil 3 can heat the alloy micropowder inside and outside at the same time, avoiding the problem of the alloy micropowder due to local overheating. The vacuum insulation layer of the vacuum insulation layer 2 has a heat-insulating effect on the alloy micropowder at the bottom, so that the alloy micropowder will not cool too quickly and can meet the process specifications of the heat treatment. When the treatment is completed, the motor 12 starts to drive the unloading rod 4 to rotate through the engagement of the second bevel gear 13 and the first bevel gear 5. The unloading rod 4 is threadedly connected to the heating furnace 1, so the unloading rod 4 will slide up and down inside the heating furnace 1 when it rotates. When the unloading rod 4 slides upward, the unloading port at the bottom of the heating furnace 1 can be opened to discharge the alloy micropowder. The heating and slow cooling of the alloy micropowder are completed through the vacuum insulation layer 2 and the coil 3, thereby achieving the effect of improving the heat treatment process level.

[0030] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An alloy powder heat treatment device, comprising a heating furnace (1), characterized in that: An exhaust pipe (9) is fixedly mounted on the top of the heating furnace (1), a vacuum pump (11) is fixedly mounted on the end of the exhaust pipe (9), and a feed rod (6) is slidably mounted on the top of the heating furnace (1).

2. The alloy powder heat treatment device according to claim 1, characterized in that: A vacuum heat insulation layer (2) is provided inside the heating furnace (1), a coil (3) is fixedly mounted on the outer wall of the heating furnace (1), and a motor (12) is fixedly mounted on the top of the heating furnace (1).

3. The alloy powder heat treatment device according to claim 1, characterized in that: The internal thread of the heating furnace (1) is provided with a discharge rod (4), and a first bevel gear (5) is slidably mounted on the top end of the discharge rod (4).

4. The alloy powder heat treatment device according to claim 1, characterized in that: A spring (7) is fixedly mounted on the top end of the feed rod (6), and an electric push rod (14) is fixedly mounted on the top end of the feed rod (6).

5. The alloy powder heat treatment device according to claim 2, characterized in that: A second bevel gear (13) is fixedly mounted on the side end of the motor (12); The second bevel gear (13) is meshed with the first bevel gear (5).

6. The alloy powder heat treatment device according to claim 1, characterized in that: A furnace shell (8) is fixedly mounted on the outside of the heating furnace (1).

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