Solid solution treatment device for nitrogen-containing stainless steel

Abstract

The utility model provides a solid solution treatment device for nitrogen-containing stainless steel. The solid solution treatment device comprises a conveying component, a sealing component I, a supporting component, a shell component, a cooling component, a sealing component II and supporting legs, two first guide grooves are formed in a conveying frame of the conveying component, two second guide grooves are formed in an inclined plate, a push plate is fixedly installed on a transmission chain, a second gear in the supporting and placing component is meshed with a first gear, linear motion of the second gear drives the first gear to rotate, and the first gear rotates to drive straight teeth to move so that a sealing plate can be rapidly opened or closed. The air tightness and the temperature uniformity in the shell are improved; the inclination angle of an inclined plate in the cooling component is 30 degrees, the supporting component can be rapidly transferred to the cooling pool from the shell through a second guide groove and the gravity effect of the supporting component, the time needed for transferring the part into the cooling pool after solution treatment is shortened, nitride precipitation is effectively avoided, and then the mechanical performance of the nitrogen-containing stainless steel is improved.

Description

Technical Field

[0001] This utility model relates to the field of solution treatment technology, and more specifically, to a solution treatment device for nitrogen-containing stainless steel. Background Technology

[0002] Nitrogen-containing stainless steel significantly improves the material's strength, corrosion resistance, creep resistance, and pitting corrosion resistance by adding nitrogen to the steel. The solid solution treatment of nitrogen makes it of great application value in fields such as nuclear power, chemical industry, marine engineering, and medical devices. Since the solid solution treatment of stainless steel requires a high temperature, it needs to be carried out in a nitrogen-filled chamber to prevent nitrogen from easily escaping from the steel and forming a denitrification layer on the surface. At the same time, rapid cooling is required to inhibit the precipitation of nitrides.

[0003] Existing solution treatment equipment mainly includes box-type resistance furnaces, continuous roller hearth furnaces, and vacuum furnaces. During solution treatment, the furnace door needs to be fully opened, and the steel is transported by a robotic arm. This results in problems such as poor airtightness, low working efficiency, and long cooling time. Continuous solution treatment equipment has improved efficiency, but its airtightness is poor and it cannot maintain stable nitrogen conditions. Vacuum furnace solution treatment equipment has good airtightness, but the transfer to cooling time is long, which can lead to the precipitation of nitrides. Therefore, there is a need to provide a solution treatment device for nitrogen-containing stainless steel to solve the above problems. Utility Model Content

[0004] This invention addresses the problems of poor airtightness in the solution treatment device for nitrogen-containing stainless steel, which prevents the formation of a good nitrogen environment, leading to nitrogen easily escaping from the steel to form a denitrification layer on the surface, and the long transfer and cooling time causing nitride precipitation.

[0005] This utility model provides a solution treatment device for nitrogen-containing stainless steel, comprising: a conveying component, a first sealing component, a supporting component, a shell component, a cooling component, a second sealing component, and support feet; the first sealing component is movably installed on the upper surface of the conveying component, the supporting component is placed on the conveying component, the shell component is fixedly installed above the conveying component, the end face of the conveying component is fixedly connected to the cooling component, the second sealing component is fixedly installed on the cooling component, and four support feet are fixedly installed on the lower surface of the conveying component.

[0006] Furthermore, the conveying component includes: a conveying frame, a guide groove, a transmission chain, a pusher plate, and a motor; the conveying frame has a T-shaped hollow internal structure, and two symmetrically distributed guide grooves are provided on the conveying frame. A transmission chain is fixedly installed inside the conveying frame, and a pusher plate is fixedly installed on the transmission chain. A motor is fixedly installed inside the conveying frame, and the motor drives the transmission chain to rotate.

[0007] Furthermore, the sealing component includes: a gear, a spur gear, a sealing plate, and a movable wheel; a total of four gears are provided, and the gears are movably mounted on the conveyor frame via bearings. Each gear is movably connected to the spur gear through a gear structure. A sealing plate is fixedly installed on the upper surface of the spur gear, and a movable wheel is fixedly installed on the lower surface of the spur gear.

[0008] Furthermore, the supporting component includes: an outer frame, a second gear, a set of movable wheels, and a hook; the outer frame is a hollow cuboid structure, and the surface of the outer frame is provided with a large number of square through holes for heat conduction. The second gear is fixedly installed on the lower surface of the outer frame, and the second gear cooperates with the first gear. Four set of movable wheels are fixedly installed on the lower surface of the second gear, and the outer frame is fixedly connected to the hook.

[0009] Furthermore, the outer casing component includes: an outer casing and a heating furnace; the outer casing is a thin-walled structure fixedly installed on the upper surface of the conveyor frame, and the heating furnace is fixedly installed inside the outer casing.

[0010] Furthermore, the cooling component includes: an inclined plate, a second guide groove, and a cooling pool; the inclined plate has an internal hollow structure with an inclination angle of 30°, one end of the inclined plate is fixedly connected to the end face of the conveyor frame, two second guide grooves are provided on the inclined plate, the second guide groove and the first guide groove are on the same vertical plane and cooperate with the moving wheel, and the other end of the inclined plate is fixedly installed with a cooling pool.

[0011] Furthermore, the second sealing component has the same structure as the first sealing component, and the second sealing component is movably connected to the inclined plate via a bearing.

[0012] Beneficial effects:

[0013] 1. In the utility model, a gear 1 is movably mounted on the conveyor frame via a bearing. Gear 1 engages with a gear 2 on the support component. Under the action of the conveyor component, gear 2 moves linearly, which drives gear 1 to rotate. Gear 1 meshes with the spur teeth, thereby pulling open the sealing plate. After the support component enters the outer shell component, gear 2 drives gear 1 to rotate. The rotation of gear 1 causes the spur teeth to move in the opposite direction, pulling open and closing the sealing plate. This improves the airtightness and temperature uniformity of the solution treatment device, and makes it easier to maintain good nitrogen conditions inside the outer shell, preventing nitrogen from escaping from the steel and forming a denitrification layer on the surface.

[0014] 2. In this utility model, the tilt angle of the inclined plate is 30°. The inclined plate is connected to the end face of the conveyor frame. The guide groove 1 on the conveyor frame and the guide groove 2 on the inclined plate are on the same vertical plane and cooperate with the moving wheel. A cooling pool is fixedly installed at the other end of the inclined plate. The parts that need to be solution treated are placed inside the outer frame of the support component. After the solution treatment is completed, the support component moves to the inclined plate. Under its own weight, the support component slides down quickly. At the same time, the sealing plate of the sealing component 2 is pulled open by the gear 2, which can quickly move to the cooling pool, reducing the time required for the parts to be transferred to the cooling pool after solution treatment, thereby reducing the precipitation of nitrides. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a vertical sectional view of the present invention;

[0017] Figure 3 This is a horizontal sectional view of the present invention;

[0018] Figure 4 A schematic diagram of the conveying component structure of this utility model;

[0019] Figure 5 Cross-sectional view of the conveying component of this utility model;

[0020] Figure 6 A schematic diagram of the sealing component structure of this utility model;

[0021] Figure 7 A schematic diagram of the supporting component structure of this utility model.

[0022] In the figure, the correspondence between the component names and the attached drawing numbers is as follows: Conveying component 1, Conveying frame 101, Guide groove 102, Transmission chain 103, Push plate 104, Motor 105, Sealing component 1 2, Gear 1 201, Spur gear 202, Sealing plate 203, Moving wheel 1 204, Supporting component 3, Outer frame 301, Gear 2 302, Moving wheel 303, Hook 304, Outer shell component 4, Outer shell 401, Heating furnace 402, Cooling component 5, Inclined plate 501, Guide groove 2 502, Cooling pool 503, Sealing component 2 6, Support leg 7. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] As attached Figure 1 To be continued Figure 7As shown:

[0025] This embodiment provides a solution treatment device for nitrogen-containing stainless steel, including: a conveying component 1, a sealing component 2, a supporting component 3, a housing component 4, a cooling component 5, a second sealing component 6, and support feet 7; the sealing component 2 is movably installed on the upper surface of the conveying component 1, the supporting component 3 is placed on the conveying component 1, the housing component 4 is fixedly installed above the conveying component 1, the end face of the conveying component 1 is fixedly connected to the cooling component 5, the second sealing component 6 is fixedly installed on the cooling component 5, and four support feet 7 are fixedly installed on the lower surface of the conveying component 1.

[0026] Preferably, the conveying component 1 includes: a conveyor frame 101, guide grooves 102, a transmission chain 103, a pusher plate 104, and a motor 105; the conveyor frame 101 has a T-shaped hollow internal structure, and two symmetrically distributed guide grooves 102 are provided on the conveyor frame 101. The transmission chain 103 is fixedly installed inside the conveyor frame 101, and the pusher plate 104 is fixedly installed on the transmission chain 103. The motor 105 is fixedly installed inside the conveyor frame 101, and the motor 105 drives the transmission chain 103 to rotate.

[0027] In a specific embodiment: two guide grooves 102 are symmetrically arranged on the conveyor frame 101 in the conveyor component 1. The distance between the two guide grooves 102 is the same as the distance between the two moving wheels 303. The depth of the guide grooves 102 is less than the radius of the moving wheels 303. The bottom surface of the guide grooves 102 is tangent to the cylindrical surface of the moving wheels 303. The guide grooves 102 provide a moving track for the moving wheels 303. A transmission chain 103 is fixedly installed inside the conveyor frame 101. The transmission chain 103 is driven by a motor 105. A push plate 104 is fixedly installed on the transmission chain 103. A gap is provided in the middle of the conveyor frame 101. The width of the push plate 104 is less than the width of the gap so that the push plate 104 can move with the transmission chain 103. The push plate 104 pushes the support component 3 to move forward along the guide grooves 102.

[0028] Preferably, the sealing component 2 includes: a gear 201, a spur gear 202, a sealing plate 203, and a moving wheel 204; a total of 4 gears 201 are provided, and the gears 201 are movably mounted on the conveyor frame 101 through bearings. Each gear 201 is movably connected to the spur gear 202 through a gear structure. The sealing plate 203 is fixedly installed on the upper surface of the spur gear 202, and the moving wheel 204 is fixedly installed on the lower surface of the spur gear 202.

[0029] Preferably, the supporting component 3 includes: an outer frame 301, a second gear 302, a movable wheel 303, and a hook 304; the outer frame 301 is a hollow cuboid structure, and the surface of the outer frame 301 is provided with a large number of square through holes for heat conduction. The second gear 302 is fixedly installed on the lower surface of the outer frame 301, and the second gear 302 cooperates with the first gear 201. Four movable wheels 303 are fixedly installed on the lower surface of the second gear 302, and the outer frame 301 is fixedly connected to the hook 304.

[0030] Preferably, the outer shell component 4 includes: an outer shell 401 and a heating furnace 402; the outer shell 401 is a thin-walled structure and is fixedly installed on the upper surface of the conveyor frame 101, and the heating furnace 402 is fixedly installed inside the outer shell 401.

[0031] In a specific embodiment: four gears 201 are movably mounted on the conveyor frame 101 via bearings. Two gears 201 mesh with gears 302 in the support component 3. Gears 201 and spur gears 202 are movably connected via a tooth structure. The sealing plate 203 is fixedly mounted on the spur gears 202. The contact and separation of gears 202 and gears 201 allows gears 201 to drive the spur gears 202 to fully open the sealing plate 203 so that the support component 3 can enter. After the support component 3 enters, gears 202 will drive the other two gears 201 to rotate. When gears 201 rotate and separate from the spur gears 202, the sealing plate 203 is fully closed. The contact surfaces of the sealing plate 203 with the outer shell 401 are provided with flexible material to improve the airtightness of the outer shell 401. The support component 3 can quickly open or close the sealed space, avoiding a large amount of air entering the outer shell 401 during the transportation of parts and affecting the nitrogen conditions required for solution treatment.

[0032] Preferably, the cooling component 5 includes: an inclined plate 501, a second guide groove 502, and a cooling pool 503; the inclined plate 501 has an internal hollow structure with an inclination angle of 30°, one end of the inclined plate 501 is fixedly connected to the end face of the conveyor frame 101, two second guide grooves 502 are provided on the inclined plate 501, the second guide groove 502 and the first guide groove 102 are on the same vertical plane and cooperate with the moving wheel 303, and the other end of the inclined plate 501 is fixedly installed with the cooling pool 503.

[0033] Preferably, the sealing member 26 has the same structure as the sealing member 12, and the sealing member 26 is movably connected to the inclined plate 501 through a bearing.

[0034] In a specific embodiment: the inclined plate 501 has an internal hollow structure with an inclination angle of 30°. One end of the inclined plate 501 is fixedly connected to the end face of the conveyor frame 101. Two guide grooves 502 are provided on the inclined plate 501. The distance between the two guide grooves 502 is the same as the distance between the two moving wheels 303. The guide groove 102 on the end face of the conveyor frame 101 is connected to the guide groove 502 of the inclined plate 501. The guide groove 502 and the guide groove 102 are on the same vertical plane and cooperate with the moving wheels 303 so that the supporting component 3 can move smoothly from the guide groove 102 to the guide groove 502. A cooling pool 503 is fixedly installed on the other end of the inclined plate 501. The cooling pool 503 contains coolant for cooling. The height of the coolant is greater than the height of the supporting component 3 so that the solution-treated parts can be completely immersed in the coolant.

[0035] Working principle: The conveyor frame 101 is provided with two guide grooves 102, and the inclined plate 501 is provided with two guide grooves 502. The push plate 104 is fixedly installed on the transmission chain 103. The motor 105 drives the transmission chain 103 to rotate, which in turn drives the push plate 104 to move. The push plate 104 can push the supporting component 3 to move forward along the guide grooves 102 and 502. The gear 2 302 in the supporting component 3 meshes with the gear 1 201. The linear motion of the gear 2 302 drives the gear 1 201 to rotate. The rotation of the gear 1 201 will drive the spur gear 202 to move, making the sealing plate 203 move quickly. Opening or closing the shell improves the airtightness and temperature uniformity of the shell 401, which helps maintain good nitrogen conditions and prevents nitrogen from escaping from the steel to the surface and forming a denitrification layer. The inclined plate 501 has an inclination angle of 30°. One end of the inclined plate 501 is connected to the conveyor frame 101, and the other end is fixedly installed with a cooling pool 503. The support component 3 can be quickly transferred from the shell 401 to the cooling pool 503 through the guide groove 502 and its own gravity, which reduces the time required for the parts to be transferred to the cooling pool after solution treatment, effectively avoids the precipitation of nitrides, and thus improves the mechanical properties of nitrogen-containing stainless steel.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solution treatment apparatus for a nitrogen-containing stainless steel, comprising: The components are: a conveying component (1), a sealing component (2), a support component (3), a housing component (4), a cooling component (5), a sealing component (6), and support feet (7); characterized in that: a sealing component (2) is movably installed on the upper surface of the conveying component (1), a support component (3) is placed on the conveying component (1), a housing component (4) is fixedly installed above the conveying component (1), the end face of the conveying component (1) is fixedly connected to the cooling component (5), a sealing component (6) is fixedly installed on the cooling component (5), and four support feet (7) are fixedly installed on the lower surface of the conveying component (1).

2. The solution treatment apparatus for nitrogen-containing stainless steel as described in claim 1, characterized in that: The conveying component (1) includes: a conveying frame (101), a guide groove (102), a transmission chain (103), a push plate (104), and a motor (105); the conveying frame (101) has a T-shaped hollow internal structure, and two symmetrically distributed guide grooves (102) are provided on the conveying frame (101). The transmission chain (103) is fixedly installed inside the conveying frame (101), and the push plate (104) is fixedly installed on the transmission chain (103). The motor (105) is fixedly installed inside the conveying frame (101), and the motor (105) drives the transmission chain (103) to rotate.

3. The solution treatment apparatus for nitrogen-containing stainless steel according to claim 1, characterized by: The sealing component 1 (2) includes: gear 1 (201), spur gear (202), sealing plate (203) and moving wheel 1 (204); there are a total of 4 gear 1 (201), gear 1 (201) is movably mounted on the conveyor frame (101) through bearings, and gear 1 (201) is movably connected to spur gear (202) through gear structure. The sealing plate (203) is fixedly installed on the upper surface of spur gear (202), and the moving wheel 1 (204) is fixedly installed on the lower surface of spur gear (202).

4. The solution treatment apparatus for nitrogen-containing stainless steel according to claim 1, characterized by: The supporting component (3) includes: an outer frame (301), a second gear (302), a moving wheel (303), and a hook (304); the outer frame (301) is a hollow cuboid structure, and the surface of the outer frame (301) is provided with a large number of square through holes for heat conduction. The second gear (302) is fixedly installed on the lower surface of the outer frame (301), and the second gear (302) cooperates with the first gear (201). Four moving wheels (303) are fixedly installed on the lower surface of the second gear (302), and the outer frame (301) is fixedly connected to the hook (304).

5. The solution treatment apparatus for nitrogen-containing stainless steel according to claim 1, characterized by: The outer shell component (4) includes: an outer shell (401) and a heating furnace (402); the outer shell (401) is a thin-walled structure and is fixedly installed on the upper surface of the conveyor frame (101), and the heating furnace (402) is fixedly installed inside the outer shell (401).

6. The solution treatment apparatus for nitrogen-containing stainless steel according to claim 1, characterized by: The cooling component (5) includes: an inclined plate (501), a second guide groove (502), and a cooling pool (503); the inclined plate (501) has an internal hollow structure with an inclination angle of 30°. One end of the inclined plate (501) is fixedly connected to the end face of the conveyor frame (101). Two second guide grooves (502) are provided on the inclined plate (501). The second guide groove (502) and the first guide groove (102) are on the same vertical plane and cooperate with the moving wheel (303). The other end of the inclined plate (501) is fixedly installed with a cooling pool (503).

7. The solution treatment apparatus for nitrogen-containing stainless steel according to claim 1, characterized by: The sealing component 2 (6) has the same structure as the sealing component 1 (2), and the sealing component 2 (6) is movably connected to the inclined plate (501) through a bearing.

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