Heat treatment device for producing high-temperature corrosion-resistant alloy seamless tube

Abstract

The utility model discloses a heat treatment device for producing a high-temperature corrosion-resistant alloy seamless pipe, belongs to the technical field of heat treatment of alloy pipes, and solves the problem that the heat treatment time of the steel pipes is prolonged when the number of the steel pipes to be subjected to heat treatment in a heating furnace is too large. Comprising a heating furnace, a heating groove located in the heating furnace and a spacing groove, and the heating groove is communicated with the spacing groove through a plurality of through holes. When a large number of steel pipes are heated and subjected to heat treatment, only a layer of solder resist coating needs to be sprayed on the surfaces of the steel pipes, then the steel pipes are put into the heating groove and the spacing groove which heat tin to be in a molten state, and the molten tin is stirred through the flow guide assembly, so that the molten tin generates flowing force, and the solder resist coating is sprayed on the surfaces of the steel pipes. And then the molten tin acts on the steel pipe and rotates in the molten tin, so that all-directional heating heat treatment is realized, and meanwhile, the heat conduction efficiency between the liquid and the solid is higher than that of air, so that people can finish heat treatment work as soon as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy pipe heat treatment, in particular to a heat treatment device for producing high-temperature corrosion-resistant alloy seamless pipes. Background Art

[0002] In the current seamless steel pipe processing technology, heat treatment annealing plays a vital role. This step is mainly aimed at eliminating the internal stress of the material and improving the softness and toughness of the seamless steel pipe, thereby laying a solid foundation for the subsequent cold drawing and straightening treatment, which is also greatly conducive to adjusting the diameter size of the seamless steel pipe. In this way, the seamless steel pipe can obtain suitable mechanical properties and dimensional accuracy, ensuring that its final application performance and quality meet the standards.

[0003] However, the current method is basically to send the steel pipe into a heating furnace for heating, heat the air inside through the electric heating wire in the heating furnace, and then transfer the heat to the steel pipe to achieve heat treatment of the steel pipe. This treatment efficiency is low. Once there are too many steel pipes to be heat treated in the heating furnace, the heat treatment time of the steel pipe will be extended.

[0004] Therefore, a heat treatment device for producing high-temperature corrosion-resistant alloy seamless pipes is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a heat treatment device for producing high-temperature corrosion-resistant alloy seamless pipes.

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

[0007] A heat treatment device for producing high-temperature corrosion-resistant alloy seamless pipes comprises a heating furnace, a heating tank and a spacing tank located therein, wherein the heating tank and the spacing tank are connected via a plurality of through holes, molten tin is arranged in the heating tank and the spacing tank, and a guide component for guiding the flow of the molten tin is arranged above the heating furnace.

[0008] Preferably, the guide assembly includes a connecting shaft rotatably connected above the spacing groove, a sleeve sleeved on the connecting shaft, and a stirring blade fixedly connected to the outer ring of the sleeve, and the connecting shaft is intermittently rotatable.

[0009] Preferably, the guide assembly also includes two groups of bearing seat 1, bearing seat 2, and a servo motor fixedly connected to the top surface of the heating furnace. A connecting seat is fixedly connected to the side wall of the heating furnace by bolts, the servo motor is fixedly connected to the connecting seat, the end of the connecting shaft is fixedly connected to the inner ring of bearing seat 1, the output shaft of the servo motor is fixedly connected to the inner ring of bearing seat 2, a residual gear is fixedly connected to the output shaft of the servo motor, and a driven gear meshing with the residual gear is fixedly connected to the connecting shaft.

[0010] Preferably, the number of teeth of the residual gear is half the number of teeth of the driven gear, and the residual gear is spaced apart from the driven gear after each rotation.

[0011] Preferably, the heating furnace is fixedly connected with a bearing seat three located between the bearing seat one and the driven gear, and the connecting shaft is fixedly connected to the inner ring of the bearing seat three.

[0012] Preferably, a circle of connecting frame is fixedly connected to the inner peripheral wall of the heating tank, and a cover plate can be arranged on the top of the connecting frame.

[0013] Preferably, the heating furnace is provided with electric heating wires for heating the heating grooves and the spacing grooves.

[0014] The utility model has the following beneficial effects:

[0015] In the present invention, when it is necessary to perform heat treatment operations on batches of steel pipes, first, only a layer of solder resist coating is required on the outer surface of the steel pipe. Then, these treated steel pipes can be directly placed in a heating tank filled with tin that has been pre-heated to a liquid state. In order to ensure uniform heating of the tin, a flow guide component is designed to effectively stir the molten tin to produce a circulating flow. The force of this flow then acts directly on the steel pipes covered with the solder resist coating, forcing them to rotate in the liquid tin to achieve comprehensive and uniform heating of the steel pipes. The benefits of this heat treatment strategy are significant. Compared with ordinary air heating methods, the efficient thermal conductivity of liquid to solid can be used to greatly reduce the time required for heat treatment, thereby significantly improving processing efficiency and ensuring the uniformity and quality of heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0019] 1. Heating furnace; 2. Heating tank; 3. Sleeve; 4. Spacer groove; 5. Connecting frame; 6. Through hole; 7. Bearing seat 1; 8. Connecting shaft; 9. Bearing seat 3; 10. Driven gear; 11. Connecting seat; 12. Servo motor; 13. Rotating shaft; 14. Bearing seat 2; 15. Residual gear; 16. Stirring blade. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Heat treatment equipment for the production of high temperature corrosion resistant alloy seamless pipes, such as Figure 1 As shown, it includes a heating furnace 1, a heating tank 2 and a spacing tank 4 located therein, the heating tank 2 and the spacing tank 4 are connected by a plurality of through holes 6, molten tin is arranged in the heating tank 2 and the spacing tank 4, and an electric heating wire for heating the heating tank 2 and the spacing tank 4 is arranged in the heating furnace 1, a circle of connecting frame 5 is fixedly connected to the inner peripheral wall of the heating tank 2, and a cover plate can be arranged on the top of the connecting frame 5, and a handle is fixedly connected to the top surface of the cover plate.

[0022] A guide assembly for guiding the flow of molten tin is arranged above the heating furnace 1 .

[0023] like Figure 2 and 3 As shown, the guide assembly includes a connecting shaft 8 rotatably connected above the spacing groove 4, a sleeve 3 sleeved on the connecting shaft 8, a stirring blade 16 fixedly connected to the outer ring of the sleeve 3, two sets of bearing seats 1 7 fixedly connected to the top surface of the heating furnace 1, a bearing seat 2 14, and a servo motor 12. The connecting shaft 8 is intermittently rotatable, and a connecting seat 11 made of angle steel and in an L shape is fixedly connected to the side wall of the heating furnace 1 by bolts. The servo motor 12 is fixedly connected to the connecting seat 11, and the end of the connecting shaft 8 is fixedly connected to the inner ring of the bearing seat 1 7. The output shaft of the servo motor 12 is fixedly connected to the inner ring of the bearing seat 2 14, and a residual gear 15 is fixedly connected to the output shaft of the servo motor 12. A driven gear 10 meshing with the residual gear 15 is fixedly connected to the connecting shaft 8. The number of teeth of the residual gear 15 is half of the number of teeth of the driven gear 10, and the residual gear 15 is spaced apart from the driven gear 10 after each rotation. A bearing seat 3 9 located between the bearing seat 1 7 and the driven gear 10 is fixedly connected to the heating furnace 1, and the connecting shaft 8 is fixedly connected to the inner ring of the bearing seat 3 9.

[0024] When people need to heat treat steel pipes through heat treatment equipment for the production of high-temperature corrosion-resistant alloy seamless pipes, they only need to heat them through electric heating wires first, so that the tin in the heating groove 2 and the spacing groove 4 can be heated, and then the tin therein can be turned into molten tin. The guide component can cover the opening of the spacing groove 4, and the cover plate can close the opening of the heating groove 2, so that the tin in the heating groove 2 and the spacing groove 4 can be heated as soon as possible to form molten tin.

[0025] After the heating is completed, the heating wire keeps the molten tin in the heating tank 2 and the spacing tank 4 warm.

[0026] When people need to heat treat the steel pipe, they only need to coat a layer of silicon-based solder resist coating on the surface of the steel pipe, and then put it into the heating tank 2 to immerse it in the molten tin in the heating tank 2. Through the heat conduction efficiency between liquid and solid, efficient heat conduction is carried out, so that the steel pipe can be fully heat treated in a short time. At the same time, the guide component drives the residual gear 15 to rotate through the servo motor 12, and each rotation can drive the driven gear 10 to rotate half a circle. The driven gear 10 drives the stirring blade 16 to stir the molten tin through the connecting shaft 8 and the sleeve 3, so that it forms waves and passes through the spacing groove 4 and the through hole 6 into the heating tank 2, so that the steel pipe floating or suspended therein rotates.

[0027] Because there is a lot of space inside the steel pipe and the density of steel is generally similar to that of tin, the steel pipe can remain floating or suspended when placed in molten tin.

[0028] After sufficient heat treatment, the steel pipe only needs to be taken out from the heating tank 2 by a clamp having a melting point higher than the temperature of the molten tin.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat treatment device for producing high temperature corrosion resistant alloy seamless pipes, characterized in that: The invention comprises a heating furnace (1), a heating groove (2) and a spacing groove (4) located therein, wherein the heating groove (2) and the spacing groove (4) are connected via a plurality of through holes (6), molten tin is arranged in the heating groove (2) and the spacing groove (4), and a guide component for guiding the flow of the molten tin is arranged above the heating furnace (1).

2. The heat treatment device for producing high temperature corrosion resistant alloy seamless pipe according to claim 1, characterized in that: The flow guide assembly comprises a connecting shaft (8) rotatably connected above the spacing groove (4), a sleeve (3) sleeved on the connecting shaft (8), and a stirring blade (16) fixedly connected to the outer ring of the sleeve (3); the connecting shaft (8) is arranged to rotate intermittently.

3. The heat treatment device for producing high temperature corrosion resistant alloy seamless pipe according to claim 2, characterized in that: The guide assembly also includes two groups of bearing seats 1 (7), bearing seat 2 (14), and a servo motor (12) fixedly connected to the top surface of the heating furnace (1); a connecting seat (11) is fixedly connected to the side wall of the heating furnace (1) by bolts; the servo motor (12) is fixedly connected to the connecting seat (11); the end of the connecting shaft (8) is fixedly connected to the inner ring of the bearing seat 1 (7); the output shaft of the servo motor (12) is fixedly connected to the inner ring of the bearing seat 2 (14); a residual gear (15) is fixedly connected to the output shaft of the servo motor (12); and a driven gear (10) meshing with the residual gear (15) is fixedly connected to the connecting shaft (8).

4. The heat treatment device for producing high temperature corrosion resistant alloy seamless pipe according to claim 3, characterized in that: The number of teeth of the residual gear (15) is half the number of teeth of the driven gear (10), and the residual gear (15) is spaced apart from the driven gear (10) after each rotation.

5. The heat treatment device for producing high temperature corrosion resistant alloy seamless pipe according to claim 3, characterized in that: The heating furnace (1) is fixedly connected to a bearing seat three (9) located between the bearing seat one (7) and the driven gear (10), and the connecting shaft (8) is fixedly connected to the inner ring of the bearing seat three (9).

6. The heat treatment device for producing high temperature corrosion resistant alloy seamless pipe according to claim 1, characterized in that: A circle of connecting frame (5) is fixedly connected to the inner peripheral wall of the heating tank (2), and a cover plate can be provided on the top of the connecting frame (5).

7. The heat treatment device for producing high temperature corrosion resistant alloy seamless pipe according to claim 1, characterized in that: The heating furnace (1) is provided with electric heating wires for heating the heating groove (2) and the spacing groove (4).

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