CN114645129A

CN114645129A - Heat treatment device and heat treatment process for high-hardness stainless steel screw

Info

Publication number: CN114645129A
Application number: CN202210312780.8A
Authority: CN
Inventors: 马聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-06-21

Abstract

The application provides a high-hardness stainless steel screw heat treatment device and a heat treatment process, and relates to the technical field of heat treatment. The utility model provides a high rigidity stainless steel screw heat treatment device, includes lagging casing and heat preservation flap gate, and lagging casing and heat preservation flap gate form the heat preservation chamber, are provided with the material car in the heat preservation chamber, and the internally mounted of lagging casing has the inner baffle, and the upper portion of inner baffle is provided with the flow equalizing board, is provided with electric heating pipe between lagging casing and the inner baffle, is provided with the fan between lagging casing and the flow equalizing board, and the bottom of inner baffle is provided with the return air inlet, is provided with the air outlet on the flow equalizing board. The device can rapidly heat up and cool down, has better heat preservation effect, and is more convenient for the heat treatment of the screw.

Description

Heat treatment device and heat treatment process for high-hardness stainless steel screw

Technical Field

The application relates to the technical field of heat treatment, in particular to a high-hardness stainless steel screw heat treatment device and a heat treatment process.

Background

The heat treatment is a metal hot processing technology for changing the chemical components and structures on the surface or in the material to obtain the required performance by heating, heat preservation and cooling the metal material in a solid state. The heat treatment is to put the metal material in a certain medium for heating, heat preservation and cooling, and the performance of the metal material is controlled by changing the metallographic structure on the surface or inside the material, so that the mechanical property of the material can be improved, the residual stress can be eliminated, and the cutting processing of the metal can be improved, for example, the heat treatment device is used in the processing process of screws.

The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. Screws are a common term for fasteners, a daily spoken word. The screw is an indispensable industrial necessity in daily life.

The screw has an extremely important role in daily life, so that the screw has to have quite excellent quality to ensure the safe proceeding of the daily life, and how to improve the quality of the screw needs to start from the aspect of preparing and processing the screw and improve the performance of the screw by reasonably improving each link in the preparation. At present the screw is heated with flame to the screw common mode when carrying out thermal treatment, but when heating the screw with flame, be difficult to simultaneously heat a plurality of screws on the one hand to cause the efficiency of handling not high, on the other hand cooling and heat preservation effect are not good.

Disclosure of Invention

The application aims to provide a high-hardness stainless steel screw heat treatment device which has the advantages of being capable of rapidly heating and cooling.

Another object of the present application is to provide a heat treatment process for high-hardness stainless steel screws, which is simple and convenient.

The technical problem to be solved by the application is solved by adopting the following technical scheme.

On the one hand, this application embodiment provides a high rigidity stainless steel screw heat treatment device, including lagging casing and heat preservation flap gate, lagging casing and heat preservation flap gate form the heat preservation chamber, are provided with the material car in the heat preservation intracavity, and the internally mounted of lagging casing has the inner baffle, and the upper portion of inner baffle is provided with the flow equalizer, is provided with electric heating pipe between lagging casing and the inner baffle, is provided with the fan between lagging casing and the flow equalizer, and the bottom of inner baffle is provided with the return air inlet, is provided with the air outlet on the flow equalizer.

In some embodiments of the present application, an opening is disposed on a side portion of the thermal insulation housing, one end of the opening is hinged to the thermal insulation cover door, and a locking assembly is installed between the other end of the opening and the thermal insulation cover door.

In some embodiments of the present application, a circulation flow channel is formed between the three side surfaces of the thermal insulation casing and the three side surfaces of the inner partition plate, and a circulation flow channel is formed between the upper end surface of the thermal insulation casing and the flow equalizing plate.

In some embodiments of the present application, the air return opening is provided in two rows.

In some embodiments of the present application, the air outlets are arranged on the flow equalizing plate in an equally spaced grid pattern.

In some embodiments of the present application, the fan blade of the fan is located between the heat preservation housing and the flow equalizing plate, the speed reduction motor of the fan is located outside the heat preservation housing, and the speed reduction motor is connected with the fan blade through a transmission shaft penetrating through the heat preservation housing.

In some embodiments of the present application, a fresh air pipe is disposed at the top of the heat-insulating housing, an exhaust gas pipe is disposed at the bottom of the heat-insulating housing, and pipeline valves are disposed on the fresh air pipe and the exhaust gas pipe.

In some embodiments of this application, vertical card hole has been seted up to the tip of above-mentioned material car, wears to be equipped with the cassette in the card hole, and the fixture block is worn to be equipped with by the lower part level of cassette, and the upper portion of cassette articulates there is the handle, and the handle swings along the horizontal direction.

In some embodiments of this application, the tip of above-mentioned material car is provided with the connecting plate, and the card hole setting is on the connecting plate, and the cooperation is established with the connecting plate card to the outer end of fixture block, is provided with two fixture blocks of bilateral symmetry arrangement on the cassette, is connected with the spring between the inner of two fixture blocks, and the upper portion of cassette is provided with the otic placode, and the otic placode is articulated with the handle.

On the other hand, the embodiment of the present application provides a heat treatment process of a heat treatment device for a high-hardness stainless steel screw, including the following steps:

step a, feeding: mounting screws on the material trolley, pushing the material trolley into the heat insulation cavity, and closing the heat insulation cover door;

step b, heating or cooling: when heating, the electric heating pipe and the fan work, air in the inner cavity of the partition plate enters the circulating flow channel from the air return port, is heated and heated by the electric heating pipe, then hot air is sent into the inner cavity of the partition plate through the air outlet by the fan, rapid heating of the heat preservation cavity is realized in a circulating mode, the screw is subjected to heat treatment, a plurality of temperature sensors are arranged in the inner cavity of the partition plate, the fan above the corresponding position is adjusted and controlled according to different temperatures of different positions, the rotating speed of the fan above the position with lower temperature is increased, and the rotating speed of the fan above the position with lower temperature is reduced or the fan above the position with lower temperature is directly stopped; when the electric heating pipe is cooled, the electric heating pipe stops working, the fresh air pipe and the waste gas pipe are opened, external cold air enters the inside of the electric heating pipe through the fresh air pipe, then the fan is used for sending the cold air into the inner cavity of the partition plate through the air outlet, the rapid cooling of the heat preservation cavity is realized, and high-temperature waste gas is sent out through the waste gas pipe;

and c, discharging, namely buckling the handle on the material trolley, and then pulling out the material trolley for discharging.

Compared with the prior art, the embodiment of the application has at least the following advantages or beneficial effects:

form confined heat preservation chamber through lagging casing and heat preservation lid door in this application, form confined baffle inner chamber through interior baffle and heat preservation lid door, be provided with electric heating pipe between lagging casing and the interior baffle. During the heating, utilize electric heating pipe to heat the air in the circulation runner, then utilize the fan to send hot-blast through the air outlet into the heat preservation chamber, realize the rapid heating up in heat preservation chamber through the circulation mode, carry out thermal treatment to the screw, during the cooling, can utilize fresh air pipe and exhaust pipe intercommunication, utilize the fan to send cold wind into the heat preservation chamber, realize the rapid cooling in heat preservation chamber. Consequently, this application device can heat up fast and cool down, has better heat preservation effect, makes things convenient for the thermal treatment of screw more.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic view of the structure of a heat treatment apparatus according to the present application;

FIG. 2 is a schematic view of the present application showing the structure of a material cart;

fig. 3 is a schematic view of the structure of the handle of the present application.

Icon: 1-a heat-insulating shell; 2-inner partition board; 3-an electric heating tube; 4-air return inlet; 5-flow equalizing plate; 6, air outlet; 7-a fan; 8-fresh air pipe; 9-an exhaust gas pipe; 10-a pipeline valve; 11-a material vehicle; 12-a connecting plate; 13-a clamping hole; 14-a cassette; 15-a fixture block; 16-a spring; 17-ear plate; 18-handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "left", "right", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings or the orientation or the positional relationship which is usually put out when the product of the application is used, the description is only for convenience of describing the application and simplifying the description, but the indication or the suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the application.

Furthermore, the term "horizontal" and the like, if present, does not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a heat treatment apparatus according to the present application; FIG. 2 is a schematic view of the present application showing the structure of a material cart; fig. 3 is a schematic view of the structure of the handle of the present application.

The utility model provides a high rigidity stainless steel screw heat treatment device, includes heat preservation shell 1 and heat preservation flap gate (not shown in the figure), and heat preservation shell 1 and heat preservation flap gate form confined heat preservation chamber, and the internally mounted of heat preservation shell 1 has interior baffle 2, and interior baffle 2 and heat preservation flap gate form confined baffle inner chamber. Be provided with material car 11 in the baffle intracavity, material car 11 is used for placing of screw, conveniently transports a large amount of screws.

In this embodiment, the upper portion of inner baffle 2 is provided with flow equalizing plate 5, is provided with electric heating pipe 3 between insulation casing 1 and the inner baffle 2, and this application heats the air in the heat preservation inner chamber with electric heating pipe 3, evenly brings hot-blast into the baffle inner chamber through flow equalizing plate 5 again and heats the screw.

A fan 7 is arranged between the heat preservation shell 1 and the flow equalizing plate 5, the fan 7 provides wind power for the inner cavity of the partition plate, the bottom of the inner partition plate 2 is provided with a return air inlet 4, and the flow equalizing plate 5 is provided with an air outlet 6, so that a circulating heating system can be formed inside.

During the use, open the heat preservation overhead door, in sending into the heat preservation chamber with loading material car 11 of screw, close the heat preservation overhead door, open electric heating pipe 3 and heat, start fan 7, send into the baffle inner chamber through flow equalizing plate 5 with hot-blast and heat the screw.

Example 2

The present embodiment provides a high-hardness stainless steel screw heat treatment device, which is substantially the same as the heat treatment device provided in embodiment 1, and the same parts are not repeated, except that an opening is formed in a side portion of the heat-insulating housing 1 in the present embodiment, one end of the opening is hinged to the heat-insulating cover door, and a locking assembly is installed between the other end of the opening and the heat-insulating cover door.

In this embodiment, the opening has been seted up to the lateral part of lagging casing 1, and the opening is used for the business turn over of material car 11, and open-ended one end is articulated with the heat preservation flap, realizes freely opening and shutting of heat preservation flap, is equipped with the kayser subassembly between the open-ended other end and the heat preservation flap, realizes closing locking of heat preservation flap.

Example 3

The present embodiment provides a heat treatment apparatus for a high-hardness stainless steel screw, which is substantially the same as the heat treatment apparatus provided in embodiment 1, and the same points are not repeated herein, but the difference is that a circulation flow channel is formed between three side surfaces of the heat-insulating housing 1 and three side surfaces of the inner partition 2, and a circulation flow channel is formed between an upper end surface of the heat-insulating housing 1 and the flow equalizing plate 5.

In this embodiment, a circulation channel is formed between three side surfaces of the thermal insulation casing 1 and three side surfaces of the inner partition 2, a circulation channel is formed between an upper end surface of the thermal insulation casing 1 and the flow equalizing plate 5, and the circulation channel realizes circulation of internal and external air, thereby realizing rapid and uniform heat transfer.

Example 4

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a heat treatment apparatus according to the present application; FIG. 2 is a schematic view of the present application showing the structure of a material cart; fig. 3 is a schematic view of the structure of the handle of the present application.

This embodiment provides a heat treatment device for a high-hardness stainless steel screw, which is substantially the same as the heat treatment device provided in embodiment 1, and the same points are not described again, except that the air return opening 4 in this embodiment is provided with two rows, i.e., an upper row and a lower row.

In this embodiment, the bottom of the inner partition 2 is provided with two rows of air return ports 4 for allowing air at the bottom of the inner cavity of the partition to enter the circulating channel.

Example 5

The present embodiment provides a heat treatment apparatus for high-hardness stainless steel screws, which is substantially the same as the heat treatment apparatus provided in embodiment 1, and the same parts are not repeated herein, except that the air outlets 6 are arranged on the flow equalizing plate 5 in an equidistant grid pattern.

In this embodiment, the air outlets 6 are arranged on the flow equalizing plate 5 in an equally spaced grid pattern for allowing the air in the circulating flow passage to uniformly enter the inner cavity of the partition plate, thereby forming a circulating heating system therein.

Example 6

The present embodiment provides a high-hardness stainless steel screw heat treatment device, which is substantially the same as the heat treatment device provided in embodiment 1, and the same parts are not described again, except that in this embodiment, a fan blade of the fan 7 is located between the heat-insulating housing 1 and the flow equalizing plate 5, a speed reduction motor of the fan 7 is located outside the heat-insulating housing 1, and the speed reduction motor is connected with the fan blade through a transmission shaft penetrating through the heat-insulating housing 1.

In this embodiment, the fan blade of the fan 7 is located between the heat preservation shell 1 and the flow equalizing plate 5, the speed reducing motor of the fan 7 is located outside the heat preservation shell 1, the speed reducing motor is connected with the fan blade through a transmission shaft penetrating through the heat preservation shell 1, and the fan 7 is opposite to the flow equalizing plate 5, so that air blowing from top to bottom can be realized.

Example 7

The embodiment provides a high rigidity stainless steel screw heat treatment device, and it is basically the same as the heat treatment device that embodiment 1 provided, and the same part is no longer repeated, and the difference lies in that, the top of heat preservation shell 1 is provided with fresh air pipe 8 in this embodiment, and the bottom of heat preservation shell 1 is provided with exhaust pipe 9, and fresh air pipe 8 and the last setting of exhaust pipe 9 are equipped with pipeline valve 10.

In this embodiment, the top of lagging casing 1 is equipped with fresh air pipe 8, the bottom of lagging casing 1 is equipped with exhaust gas pipe 9, all be equipped with pipeline valve 10 on fresh air pipe 8 and the exhaust gas pipe 9, pipeline valve 10 is used for controlling closing or opening of tuber pipe, when heating heat preservation intracavity portion, two pipelines are closed, when cooling down, two pipelines are opened, original circulation system is destroyed this moment, the new trend gets into through upper portion, then waste gas passes through the bottom and discharges.

Example 8

This embodiment provides a high rigidity stainless steel screw heat treatment device, it is the same basically with the heat treatment device that embodiment 1 provided, the same part is no longer repeated, the difference lies in, the tip welding of material car 11 has connecting plate 12 in this embodiment, vertical card hole 13 is established on connecting plate 12, wear to be equipped with cassette 14 in the card hole 13, fixture block 15 is worn to be equipped with by the lower part level of cassette 14, the cooperation is established with connecting plate 12 card to the outer end of fixture block 15, fixture block 15 is two of bilateral symmetry arrangement, be connected with spring 16 between the inner of two fixture blocks 15. The clamping seat 14 is clamped on the connecting plate 12, the clamping seat 14 can rotate relative to the connecting plate 12, but the clamping seat 14 cannot be separated from the connecting plate 12 under the normal condition due to the blocking of the spring 16. When the clamping seat 14 needs to be unloaded from the connecting plate 12, the clamping blocks 15 at the two ends are pressed inwards, the clamping blocks 15 retract into the inner side of the clamping seat 14, and then the clamping seat 14 can be pulled out from the connecting plate 12.

Furthermore, the upper portion of the clamping seat 14 is welded with the lug plate 17, the lug plate 17 is hinged with the handle 18, the handle 18 swings along a horizontal axis, the handle 18 pushes and pulls the clamping seat 14, the material trolley 11 is driven to move, the material trolley 11 can be operated remotely, and the material trolley 11 close to high temperature is avoided.

After the material trolley 11 loaded with the screws is pushed into the inner cavity of the partition plate, the clamping seat 14 is pulled out of the heat treatment device from the connecting plate 12, so that the clamping seat 14, the handle 18 and other parts can be prevented from being forced to be subjected to heat treatment, on one hand, a worker can contact the handle 18 which is scalded by rolling after the heating is finished, and on the other hand, the loss of the parts in the heat treatment process can be reduced.

The heat treatment process adopting the heat treatment device for the high-hardness stainless steel screw comprises the following steps of:

step a, feeding: mounting screws on the material trolley 11, then pushing the material trolley 11 into the heat preservation cavity, and closing the heat preservation cover door;

step b, heating or cooling: during heating, electric heating pipe 3 and fan 7 work, air in the heat preservation chamber gets into circulation flow channel from return air inlet 4, through electric heating pipe 3's heating intensification, then utilize fan 7 to send hot-blast through air outlet 6 into in the heat preservation chamber, realize the rapid heating up in heat preservation chamber through the circulation mode, carry out thermal treatment to the screw, set up temperature sensor in heat preservation intracavity portion many places, the temperature according to different positions is different, the fan 7 of position top is corresponded in the adjustment control, the fan 7 of the lower position top of temperature improves the rotational speed, the fan 7 of the lower position top of temperature reduces the rotational speed or directly shuts down.

During the cooling, electric heating pipe 3 stop work, fresh air pipe 8 and exhaust gas pipe 9 open, and outside cold wind gets into inside through fresh air pipe 8, then utilizes fan 7 to send cold wind into the heat preservation chamber through air outlet 6, realizes the rapid cooling in heat preservation chamber, and high temperature waste gas passes through exhaust gas pipe 9 and sees off.

Step c, discharging: the handle 18 is buckled on the material trolley 11, and then the material trolley 11 is pulled out for discharging.

In summary, the heat treatment device and the heat treatment process for the high-hardness stainless steel screw are provided in the embodiments of the present application.

Form confined heat preservation chamber through heat preservation shell 1 and heat preservation flap door in this application, form confined baffle inner chamber through interior baffle 2 and heat preservation flap door, be provided with electric heating pipe 3 between heat preservation shell 1 and the interior baffle 2. During the heating, utilize electric heating pipe 3 to heat the air in the circulation runner, then utilize fan 7 to send hot-blast through air outlet 6 into the heat preservation chamber, realize the rapid heating up in heat preservation chamber through the circulation mode, carry out thermal treatment to the screw, during the cooling, can utilize fresh air pipe 8 and exhaust pipe 9 intercommunication, utilize fan 7 to send cold wind into the heat preservation chamber, realize the rapid cooling in heat preservation chamber. Therefore, the device can rapidly heat up and cool down, has better heat preservation effect and is more convenient for the heat treatment of the screw.

The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Claims

1. The utility model provides a high rigidity stainless steel screw heat treatment device, includes lagging casing and heat preservation lid door, the lagging casing with the heat preservation lid door forms the heat preservation chamber, be provided with material car, its characterized in that in the heat preservation chamber: the heat insulation device is characterized in that an inner baffle is arranged inside the heat insulation shell, a flow equalizing plate is arranged on the upper portion of the inner baffle, an electric heating pipe is arranged between the heat insulation shell and the inner baffle, a fan is arranged between the heat insulation shell and the flow equalizing plate, a return air inlet is formed in the bottom of the inner baffle, and an air outlet is formed in the flow equalizing plate.

2. The high-hardness stainless steel screw heat treatment device according to claim 1, wherein an opening is formed in a side portion of the heat preservation shell, one end of the opening is hinged to the heat preservation cover door, and a locking assembly is installed between the other end of the opening and the heat preservation cover door.

3. The heat treatment device for the high-hardness stainless steel screw according to claim 1, wherein a circulation flow channel is formed between three side surfaces of the heat-insulating shell and three side surfaces of the inner partition plate, and a circulation flow channel is formed between an upper end surface of the heat-insulating shell and the flow equalizing plate.

4. The heat treatment device for the high-hardness stainless steel screws according to claim 1, wherein the air return inlet is formed in two rows.

5. The device as claimed in claim 1, wherein the air outlets are arranged in a grid pattern on the flow equalizing plate.

6. The device for heat treatment of high-hardness stainless steel screws according to claim 1, wherein a fan blade of the fan is located between the heat-insulating casing and the flow equalizing plate, a speed reducing motor of the fan is located outside the heat-insulating casing, and the speed reducing motor is connected with the fan blade through a transmission shaft penetrating through the heat-insulating casing.

7. The heat treatment device for the high-hardness stainless steel screws as claimed in claim 1, wherein a fresh air pipe is arranged at the top of the heat-insulating shell, an exhaust gas pipe is arranged at the bottom of the heat-insulating shell, and pipeline valves are arranged on the fresh air pipe and the exhaust gas pipe.

8. The high-hardness stainless steel screw heat treatment device according to claim 1, wherein a vertical clamping hole is formed in an end portion of the material trolley, a clamping seat penetrates through the clamping hole, a clamping block horizontally penetrates through a lower portion of the clamping seat, a handle is hinged to an upper portion of the clamping seat, and the handle swings in the horizontal direction.

9. The high-hardness stainless steel screw heat treatment device according to claim 8, wherein a connecting plate is arranged at an end of the material trolley, the clamping holes are formed in the connecting plate, outer ends of the clamping blocks are clamped and matched with the connecting plate, two clamping blocks which are symmetrically arranged in a left-right mode are arranged on the clamping seat, a spring is connected between inner ends of the two clamping blocks, an ear plate is arranged on the upper portion of the clamping seat, and the ear plate is hinged to the handle.

10. A heat treatment process adopting the heat treatment device for the high-hardness stainless steel screw according to any one of claims 1 to 9, characterized by comprising the following steps: