Heat treatment equipment for stainless steel flange casting

Abstract

The utility model relates to the technical field of metal heat treatment, and discloses heat treatment equipment for stainless steel flange casting, which comprises a tank body, supporting legs fixedly connected to the bottom of the tank body, an inner tank fixedly connected in the tank body, a liquid tank arranged between the inner tank and the tank body, a heating rod mounted in the liquid tank, and a lead fixedly connected to the heating rod after penetrating through the tank body. An interlayer is arranged in the tank body, solutions with different boiling points are injected into the interlayer, a gas tank is fixedly connected to the outer wall of the tank body, a gas guide pipe is connected between the gas tank and the top of the liquid tank, a gas valve is slidably connected in the gas tank, a telescopic pump is fixedly connected to the bottom of the gas tank, and an output shaft of the telescopic pump is fixedly connected to the gas valve. After a workpiece is heated to a certain temperature, a solution is heated till the solution reaches the boiling point, constant-temperature heating is conducted on the interior of the tank body through the solution, meanwhile, the boiling point of the solution can be accurately controlled by adjusting the air pressure in the interlayer, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal heat treatment, in particular to heat treatment equipment for stainless steel flange casting. Background Art

[0002] After casting, stainless steel automotive flanges often need to be subjected to heat treatments such as normalizing, annealing, and quenching in order to make the flanges meet the required conditions of use and improve the various physical properties of the flange body. In the traditional normalizing and quenching processes, the flanges are removed from the mold after casting, and then placed in a heat treatment box for heating. During the heat treatment process, an automatic temperature control device is required to control the temperature of the heat treatment process to meet the heat treatment processing control of the flanges. Automatic temperature control devices are widely used.

[0003] When the existing automatic temperature control device is in use, there is no positioning installation structure at the top and bottom of the temperature control mechanism to provide installation support, resulting in poor stability and convenience of device installation. At the same time, the installation and maintenance of the temperature control circuit are inconvenient and the heat loss of the device is large. In order to solve the above problems, the present application provides an automatic temperature control device for flange heat treatment processing. Utility Model Content

[0004] The utility model aims to provide a heat treatment device for stainless steel flange casting to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat treatment equipment for stainless steel flange casting, comprising a tank body, a supporting leg fixedly connected to the bottom of the tank body, an inner tank fixedly connected to the tank body, a liquid tank arranged between the inner tank and the tank body, a heating rod installed in the liquid tank, the heating rod passing through the tank body and fixedly connected to a wire, a gas tank fixedly connected to the outer wall of the tank body, an air guide pipe connected between the gas tank and the top of the liquid tank, an air valve slidably connected to the gas tank, a telescopic pump fixedly connected to the bottom of the gas tank, the output shaft of the telescopic pump fixedly connected to the gas valve, a heating component connected to the inner tank, and a liquid injection component for adding solution to the liquid tank connected to the liquid tank.

[0007] As a further solution of the utility model: a mounting groove is arranged on the top of the tank body, and a heat-insulating cover is installed in the mounting groove.

[0008] As a further solution of the utility model: a pressure gauge connected to the outer wall of the tank body is provided. The pressure gauge is communicated with the liquid tank.

[0009] As a further solution of the utility model: a pressure relief valve is connected to the liquid tank.

[0010] As a further solution of the utility model: the heating assembly includes an air supply pipe fixedly connected to the top of the tank body, the air supply pipe is fixedly connected to a connecting pipe arranged in the inner tank, and the connecting pipe is fixedly connected to a plurality of groups of equidistantly distributed nozzles.

[0011] As a further solution of the utility model: the liquid injection assembly includes a guide outlet arranged at the bottom of the tank body, and a first control valve is fixedly connected to the guide outlet. The top of the tank body is provided with a drainage port, and a second control valve is fixedly connected to the drainage port.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model arranges an interlayer in the tank body and injects solutions with different boiling points into the interlayer. After the workpiece is heated to a certain temperature, the solution is heated until the solution reaches the boiling point, and then the tank body is heated at a constant temperature by the solution. At the same time, the air pressure in the interlayer can be adjusted to accurately control the boiling point of the solution, thereby improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the structure of a heat treatment equipment for casting a stainless steel flange.

[0014] Figure 2 It is an isometric schematic diagram of a heat treatment device for casting a stainless steel flange in the utility model.

[0015] Figure 3 The utility model is a cross-sectional view of a heat treatment device for casting a stainless steel flange.

[0016] Figure 4 It is a cross-sectional view of a heat treatment device for casting a stainless steel flange in the utility model.

[0017] In the figure: 1-tank body, 2-support legs, 3-inner tank, 4-liquid tank, 5-heating rod, 6-conducting wire, 7-gas tank, 8-telescopic pump, 9-gas valve, 10-air guide pipe, 11-air pressure gauge, 12-air supply pipe, 13-connecting pipe, 14-nozzle, 15-pressure relief valve, 16-export port, 17-first control valve, 18-drainage port, 19-second control valve, 20-installation slot, 21-insulation cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 to Figure 4 In an embodiment of the utility model, a heat treatment device for stainless steel flange casting includes a tank body 1, a supporting leg 2 is fixedly connected to the bottom of the tank body 1, an inner tank 3 is fixedly connected inside the tank body 1, a liquid tank 4 is arranged between the inner tank 3 and the tank body 1, a heating rod 5 is installed in the liquid tank 4, the heating rod 5 passes through the tank body 1 and is fixedly connected with a wire 6, a gas tank 7 is fixedly connected to the outer wall of the tank body 1, an air guide pipe 10 is connected between the gas tank 7 and the top of the liquid tank 4, an air valve 9 is slidably connected inside the gas tank 7, a telescopic pump 8 is fixedly connected to the bottom of the gas tank 7, and the output shaft of the telescopic pump 8 is fixedly connected to the air valve 9, a heating component is connected inside the inner tank 3, and a liquid injection component for adding a solution into the liquid tank 4 is connected inside the liquid tank 4. The utility model injects liquid into the liquid tank 4 through the liquid injection component A solution with a boiling point close to the heat treatment temperature is injected, and then the flange is placed in the inner tank 3. At the same time, the telescopic pump 8 drives the air valve 9 to rise and fall in the air tank 7, and then the gas in the liquid tank 4 is sucked out or pumped in along the air guide pipe 10, and then the air pressure in the liquid tank 4 is adjusted. At this time, since the higher the air pressure, the higher the boiling point, and the lower the air pressure, the lower the boiling point, the boiling point of the solution in the liquid tank 4 can be accurately controlled, and then the flange in the tank body 1 is quickly heated by the heating component, and the solution in the liquid tank 4 is heated by the wire 6 and the heating rod 5. After the flange is heated, the heating component stops running, and the solution cannot continue to heat up after reaching the boiling point, and then the heat in the solution is transferred to the flange along the inner tank 3, so that the temperature in the inner tank 3 is controlled at a constant temperature.

[0020] In one case of this embodiment, see Figure 1 to Figure 4 The top of the tank body 1 is provided with a mounting groove 20, and a heat preservation cover 21 is installed in the mounting groove 20. The utility model installs the heat preservation cover 21 through the mounting groove 20. After the flange is heated, the tank body 1 is insulated by the heat preservation cover 21, thereby reducing the heat loss rate in the tank body 1.

[0021] In one case of this embodiment, see Figure 1 to Figure 4 A barometer 11 connected to the outer wall of the tank body 1 and interconnected with the liquid tank 4 is provided. The utility model accurately monitors the gas pressure in the liquid tank 4 through the provision of the barometer 11 .

[0022] In one case of this embodiment, see Figure 1 to Figure 4 The liquid tank 4 is connected with a pressure relief valve 15 . When the gas pressure in the liquid tank 4 gradually increases with the heating of the solution, the utility model releases the pressure of the gas in the liquid tank 4 through the setting of the pressure relief valve 15 .

[0023] In one case of this embodiment, see Figure 1 to Figure 4The heating component includes an air supply pipe 12 fixedly connected to the top of the tank body 1, and the air supply pipe 12 is fixedly connected to a connecting pipe 13 arranged in the inner tank 3, and the connecting pipe 13 is fixedly connected to a plurality of groups of equidistantly distributed nozzles 14. The heating component supplies gas into the connecting pipe 13 through the air supply pipe 12, and the gas is sprayed out and ignited through the nozzle 14, and then the flange is quickly heated by the sprayed flame.

[0024] In one case of this embodiment, see Figure 1 to Figure 4 The liquid injection component includes a guide port 16 arranged at the bottom of the tank body 1, and a first control valve 17 is fixedly connected to the guide port 16. A drainage port 18 is arranged on the top of the tank body 1, and a second control valve 19 is fixedly connected to the drainage port 18. The liquid injection component injects a solution with a boiling point close to the heat treatment temperature into the liquid tank 4 through the drainage port 18, and then guides the solution out through the guide port 16 after the heat treatment is completed, so as to add solutions with different boiling points according to the different temperatures required for the heat treatment, and the opening and closing of the guide port 16 and the drainage port 18 are controlled by the first control valve 17 and the second control valve 19.

[0025] The working principle of the utility model is as follows: the utility model injects a solution whose boiling point is close to the heat treatment temperature into the liquid tank 4 through the liquid injection component, then puts the flange into the inner tank 3, and at the same time drives the air valve 9 to rise and fall in the air tank 7 through the telescopic pump 8, and then the gas in the liquid tank 4 is sucked out or pumped in along the air guide pipe 10, and then the air pressure in the liquid tank 4 is adjusted. At this time, since the higher the air pressure, the higher the boiling point, and the lower the air pressure, the lower the boiling point, the boiling point of the solution in the liquid tank 4 can be accurately controlled, and then the flange in the tank body 1 is quickly heated by the heating component, and the solution in the liquid tank 4 is heated by the wire 6 and the heating rod 5. After the flange is heated, the heating component stops running, and after the solution reaches the boiling point, it cannot continue to heat up, and then the heat in the solution is transferred to the flange along the inner tank 3, so that the temperature in the inner tank 3 is controlled at a constant temperature.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat treatment equipment for stainless steel flange casting, comprising a tank body, characterized in that: A supporting leg is fixedly connected to the bottom of the tank body, an inner tank is fixedly connected to the tank body, a liquid tank is arranged between the inner tank and the tank body, a heating rod is installed in the liquid tank, the heating rod passes through the tank body and is fixedly connected to a wire, a gas tank is fixedly connected to the outer wall of the tank body, an air guide pipe is connected between the gas tank and the top of the liquid tank, an air valve is slidably connected to the gas tank, a telescopic pump is fixedly connected to the bottom of the gas tank, the output shaft of the telescopic pump is fixedly connected to the gas valve, a heating component is connected to the inner tank, and a liquid injection component for adding solution to the liquid tank is connected to the liquid tank.

2. The heat treatment equipment for stainless steel flange casting according to claim 1 is characterized in that: The top of the tank body is provided with a mounting groove, and a heat-insulating cover is installed in the mounting groove.

3. The heat treatment equipment for stainless steel flange casting according to claim 1 is characterized in that: The outer wall of the tank is connected with a pressure gauge which is in communication with the liquid tank.

4. The heat treatment equipment for stainless steel flange casting according to claim 1 is characterized in that: A pressure relief valve is connected in the liquid tank.

5. The heat treatment equipment for stainless steel flange casting according to claim 1 is characterized in that: The heating assembly comprises an air supply pipe fixedly connected to the top of the tank body, the air supply pipe is fixedly connected to a connecting pipe arranged in the inner tank, and a plurality of groups of nozzles distributed equidistantly are fixedly connected to the connecting pipe.

6. The heat treatment equipment for stainless steel flange casting according to claim 1, characterized in that: The liquid injection assembly comprises a guide outlet arranged at the bottom of the tank body, in which a first control valve is fixedly connected, and a drainage port is arranged at the top of the tank body, in which a second control valve is fixedly connected.

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