CN211367664U - A tempering furnace for heat treatment of metal surfaces - Google Patents

Abstract

The utility model discloses a tempering furnace for heat treatment of metal surfaces, belonging to the field of heat treatment. Sand is filled between the bladders, a furnace cover is movably connected to the top of the inner bladder, a sealing gasket is fixedly connected to the bottom of the furnace cover, and a hydraulic mechanism is fixedly connected to the top of the furnace cover. Side fixed connection; the utility model is provided with a load-bearing block and a material receiving box, which can facilitate the collection of the oxide skin falling on the surface of the metal workpiece when the metal workpiece is tempered, and avoid the problem of damage to the heating element caused by the oxide skin. It also ensures the cleanliness of the interior of the inner tank, and by setting the mounting plate and bolts, the placement plate can be easily disassembled and installed, so that the oxide skin collected inside the material box can be cleaned regularly.

Description

A tempering furnace for heat treatment of metal surfaces

technical field

The utility model belongs to the technical field of heat treatment, in particular to a tempering furnace for heat treatment of metal surfaces.

Background technique

Heat treatment refers to a metal thermal processing process in which the material is heated, insulated and cooled in a solid state to obtain the expected structure and properties. During the process of metal heat treatment, in order to eliminate the influence of residual stress on the metal material, improve The heat resistance of metal materials usually requires tempering of the processed metal, and the tempering of the metal is applied to the tempering furnace; however, for tempering furnaces with heating elements arranged at the bottom of the inner cavity of the tempering furnace, Because the oxide skin generated by the heating of the metal workpiece will fall off to the bottom of the inner cavity of the tempering furnace, which will cause damage to the heating element, and the accumulation of the oxide skin will make it difficult to clean the interior of the tempering furnace. It is quickly dissipated, resulting in a low utilization rate of thermal energy. For this reason, we propose a tempering furnace for heat treatment of metal surfaces.

Utility model content

The purpose of the present invention is to provide a tempering furnace for heat treatment of metal surfaces, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a tempering furnace for heat treatment of metal surfaces, comprising an outer shell and an inner tank, the bottom of the outer shell is fixedly installed with a roller, and the inner side of the outer shell is fixedly connected with a thermal insulation board, Sand is filled between the insulation board and the inner tank, a furnace cover is movably connected to the top of the inner tank, a sealing gasket is fixedly connected to the bottom of the furnace cover, and a hydraulic mechanism is fixedly connected to the top of the furnace cover, so The outside of the hydraulic mechanism is fixedly connected to one side of the shell through a support frame, the bottom of the inner cavity of the inner tank is fixedly connected with a heating element, and the inner wall of the inner tank is fixedly connected with a mounting plate, and the interior of the mounting plate is connected to the inner wall through bolts. The inner wall of the inner pot is threadedly connected, and one side of the mounting plate is fixedly connected with a placing plate, the inner wall of the inner pot is fixedly connected with a load-bearing block, and a material receiving box is placed on the top of the load-bearing block.

As a preferred embodiment, one side of the thermal insulation board is fixedly bonded to the inner side of the casing by a high temperature-resistant adhesive, and the thermal insulation board is composed of a fiber-based thermal insulation material.

As a preferred embodiment, the hydraulic mechanism is composed of an oil tank, a hydraulic rod, an oil inlet pipe and an oil outlet pipe. The top and bottom of one side of the oil tank are respectively fixedly connected with an oil inlet pipe and an oil outlet pipe, and the bottom of the oil tank is fixedly connected with a hydraulic pressure pipe. rod.

As a preferred embodiment, the heating element includes a connecting sleeve, a resistance wire and an electric wire, the connecting sleeve is fixedly installed at the bottom of the inner cavity of the inner tank, and the inside of the connecting sleeve is fixedly connected with a resistance wire. One side is electrically connected to the external circuit through wires.

As a preferred embodiment, the placing plate is composed of two connecting plates and ten connecting rods, and the ten connecting rods form a group of five, and the two groups of connecting rods are arranged in parallel.

As a preferred embodiment, the junction box is located just below the placing plate, and the junction box and the heating element are not on the same plane.

Compared with the prior art, the beneficial effects of the present utility model are:

The tempering furnace used for the heat treatment of metal surface, by setting the load-bearing block and the receiving box, can easily collect the oxide scale falling on the surface of the metal workpiece when the metal workpiece is tempered, so as to avoid the damage caused by the oxide scale to the heating element. At the same time, it also ensures the cleanliness of the interior of the inner tank, and by setting the mounting plate and bolts, the placement plate can be easily disassembled and installed, so that the oxide skin collected inside the material box can be cleaned regularly;

The tempering furnace used for heat treatment of metal surface can slow down the diffusion speed of heat and avoid the problem of rapid heat dissipation during the use of the tempering furnace by setting the heat preservation plate, sand grains and gaskets, thereby improving the efficiency of the tempering furnace. The utilization rate of heat energy of the tempering furnace, and by arranging a hydraulic mechanism and a support frame, the furnace cover of the tempering furnace can be automatically opened and closed, thereby bringing convenience to the use of the tempering furnace.

Description of drawings

Fig. 1 is the front schematic diagram of the structure of the utility model;

2 is a partial cross-sectional view of the structure of the utility model;

FIG. 3 is a top view of the placing plate in the utility model.

In the picture: 1. Outer shell; 2. Inner tank; 3. Roller; 4. Insulation board; 5. Sand; 6. Furnace cover; 7. Gasket; 8. Hydraulic mechanism; 9. Support frame; 10. Heating element ; 101, connecting sleeve; 102, resistance wire; 103, wire; 11, mounting plate; 12, bolt; 13, placing plate; 14, bearing block; 15, receiving box.

Detailed ways

The present utility model will be further described below in conjunction with the embodiments.

The following examples are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. Conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention all belong to the scope of protection of the present invention.

Please refer to FIG. 2 , the present invention provides a tempering furnace for metal surface heat treatment, including an outer shell 1 and an inner tank 2 , in order to slow down the heat dissipation speed and improve the utilization rate of heat energy, a roller can be fixedly installed at the bottom of the outer shell 1 3, and the insulation board 4 is fixedly connected to the inner side of the shell 1, and one side of the insulation board 4 is fixedly bonded to the inner side of the shell 1 through a high-temperature-resistant adhesive, and the insulation board 4 is composed of fiber insulation materials. Sand 5 is filled between 4 and the inner tank 2. When the tempering furnace heats the metal workpiece, the heat will diffuse to the outside through the inner tank 2. When the heat is transferred to the outside of the inner tank 2, the sand particles 5 and the insulation board 4. It will double block the heat energy, slow down the heat dissipation speed, and improve the utilization rate of heat energy.

Please refer to FIG. 1 and FIG. 2 , in order to facilitate the automatic opening and closing of the furnace cover 6 , the furnace cover 6 can be movably connected to the top of the inner tank 2 , the sealing gasket 7 can be fixedly connected to the bottom of the furnace cover 6 , and the furnace cover 6 The top is fixedly connected to the hydraulic mechanism 8, and the hydraulic mechanism 8 is composed of an oil tank, a hydraulic rod, an oil inlet pipe and an oil outlet pipe. The top and bottom of one side of the oil tank are fixedly connected with an oil inlet pipe and an oil outlet pipe respectively, and the bottom of the oil tank is fixedly connected with a hydraulic rod. , the outside of the hydraulic mechanism 8 is fixedly connected to one side of the casing 1 through the support frame 9. When the oil is added from the oil inlet pipe to the inside of the oil tank, and with the increase of the oil in the oil tank, the hydraulic rod will be under the action of oil pressure. Slowly move down, and drive the furnace cover 6 to move down, so that the furnace cover 6 is in contact with the top of the casing 1, which is convenient for closing the furnace cover 6. When the oil in the oil tank is drawn out from the oil outlet pipe, and the oil in the tank The hydraulic rod will move up slowly under the action of oil pressure, and drive the furnace cover 6 to move up, so that the furnace cover 6 is separated from the top of the casing 1, so that the furnace cover 6 can be easily opened.

Referring to FIG. 2, in order to facilitate heating and heating of the metal workpiece, a heating element 10 can be fixedly connected to the bottom of the inner cavity of the inner tank 2, and the heating element 10 includes a connecting sleeve 101, a resistance wire 102 and an electric wire 103, and the connecting sleeve 101 is fixedly installed At the bottom of the inner cavity of the inner tank 2, the resistance wire 102 is fixedly connected inside the connection sleeve 101, and one side of the connection sleeve 101 is electrically connected to the external circuit through the wire 103. When the electric wire 103 is used to connect the circuit, the resistance wire 102 Work generates heat, and the heat will conduct heat transfer to the air in the inner tank 2, so as to facilitate heating and heating of the metal workpiece.

Please refer to FIG. 2 and FIG. 3. In order to facilitate the placement of the metal workpiece, the inner wall of the inner tank 2 can be fixedly connected to the mounting plate 11, and the interior of the mounting plate 11 is threadedly connected to the inner wall of the inner tank 2 through bolts 12. One side of the plate 11 is fixedly connected to the placing plate 13, and the placing plate 13 is composed of two connecting plates and ten connecting rods. The ten connecting rods form a group of five, and the two sets of connecting rods are arranged in parallel. The plate 11 is aligned with the inner wall of the inner pot 2, so that one side of the mounting plate 11 is in contact with the inner wall of the inner pot 2, and the bolt 12 is rotated to make it screwed with the inner pot 2, so as to facilitate the fixed installation of the placing plate 13 , and then place the metal workpiece to be tempered on the top of the placement plate 13, so as to facilitate the placement of the metal workpiece.

Please refer to FIG. 2 , in order to collect the oxide scale generated during tempering, the inner wall of the inner tank 2 can be fixedly connected to the bearing block 14 , and a receiving box 15 is placed on the top of the bearing block 14 , and the receiving box 15 is located on the placing plate Right below 13, and the receiving box 15 and the heating element 10 are not on the same plane, when the metal workpiece is tempered, the oxide skin on the surface of the metal workpiece will fall off, and the receiving box 15 will fall off the oxide skin. Collecting, avoids the problem that the oxide skin damages the heating element 10 at the bottom of the inner cavity of the inner pot 2, and also ensures the cleanliness of the inner pot 2.

It should be noted in the above solution that the mounting plate 11 , the bolts 12 , the placing plate 13 , the bearing block 14 and the material receiving box 15 are all made of high temperature resistant materials.

The working principle and use process of the utility model: first, the oil in the oil tank is drawn out from the oil outlet pipe, and as the oil amount in the oil tank decreases, the hydraulic rod will move up slowly under the action of oil pressure, and drive the furnace cover 6 to move up. move the furnace cover 6 away from the top of the casing 1, so as to facilitate the opening of the furnace cover 6, place the metal workpiece to be tempered on the placing plate 13, and then add oil from the oil inlet pipe to the interior of the oil tank , and as the amount of oil in the oil tank increases, the hydraulic rod will slowly move down under the action of oil pressure, and drive the furnace cover 6 to move down, so that the furnace cover 6 is in contact with the top of the casing 1, which is convenient for closing the furnace cover 6. At the same time, the electric wire 103 is used to connect the circuit, so that the resistance wire 102 works to generate heat, and the heat will transfer heat to the air in the inner tank 2, so as to facilitate the heating and heating of the metal workpiece. Finally, with the heating of the metal workpiece, the metal workpiece The oxide skin on the surface will fall off. At this time, the receiving box 15 will collect the falling oxide skin, so as to avoid the problem that the oxide skin will damage the heating element 10 at the bottom of the inner cavity of the inner tank 2, and at the same time ensure the inner tank. 2. The interior is clean. When it is necessary to clean the oxide skin inside the feeding box 15, open the furnace cover 6, rotate the bolt 12 to separate it from the inner tank 2, and take the placing plate 13 upward to remove it. The inner tank 2 is convenient to take out the splice box 15 from the inner tank 2 for cleaning.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A tempering furnace for metal surface heat treatment, which comprises a shell (1) and an inner container (2), and is characterized in that: the bottom of the shell (1) is fixedly provided with rollers (3), the inner side of the shell (1) is fixedly connected with a heat-insulating plate (4), sand grains (5) are filled between the heat-insulating plate (4) and the inner container (2), the top of the inner container (2) is movably connected with a furnace cover (6), the bottom of the furnace cover (6) is fixedly connected with a sealing gasket (7), the top of the furnace cover (6) is fixedly connected with a hydraulic mechanism (8), the outside of the hydraulic mechanism (8) is fixedly connected with one side of the shell (1) through a support frame (9), the bottom of the inner cavity of the inner container (2) is fixedly connected with a heating element (10), the inner wall of the inner container (2) is fixedly connected with a mounting plate (11), the inside of the mounting plate (11) is connected with the inner wall of the inner container (2) through bolts (12) in a threaded manner, and one side of the mounting, the inner wall fixedly connected with bearing block (14) of inner bag (2), material receiving box (15) has been placed at the top of bearing block (14).

2. The tempering furnace for heat treatment of metal surfaces according to claim 1, characterized in that: one side of the heat insulation board (4) is fixedly bonded with the inner side of the shell (1) through a high-temperature-resistant adhesive, and the heat insulation board (4) is made of fiber heat insulation materials.

3. The tempering furnace for heat treatment of metal surfaces according to claim 1, characterized in that: the hydraulic mechanism (8) comprises an oil tank, a hydraulic rod, an oil inlet pipe and an oil outlet pipe, wherein the top and the bottom of one side of the oil tank are fixedly connected with the oil inlet pipe and the oil outlet pipe respectively, and the bottom of the oil tank is fixedly connected with the hydraulic rod.

4. The tempering furnace for heat treatment of metal surfaces according to claim 1, characterized in that: the heating element (10) comprises a connecting sleeve (101), a resistance wire (102) and a wire (103), the connecting sleeve (101) is fixedly installed at the bottom of the inner cavity of the inner container (2), the resistance wire (102) is fixedly connected inside the connecting sleeve (101), and one side of the connecting sleeve (101) is electrically connected with an external circuit through the wire (103).

5. The tempering furnace for heat treatment of metal surfaces according to claim 1, characterized in that: the placing plate (13) is composed of two connecting plates and ten connecting rods, five of the ten connecting rods form a group, and the two groups of connecting rods are arranged in parallel.

6. The tempering furnace for heat treatment of metal surfaces according to claim 1, characterized in that: the material receiving box (15) is positioned right below the placing plate (13), and the material receiving box (15) and the heating element (10) are not on the same plane.

Images