CN209923395U - Heat treatment device - Google Patents
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- CN209923395U CN209923395U CN201920328385.2U CN201920328385U CN209923395U CN 209923395 U CN209923395 U CN 209923395U CN 201920328385 U CN201920328385 U CN 201920328385U CN 209923395 U CN209923395 U CN 209923395U
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Abstract
The utility model relates to a heat treatment technical field discloses a heat treatment device. The heat treatment device is used for carrying out heat treatment on two welded and combined components, the first component comprises a first cylinder, and the first cylinder and/or the second component are/is provided with an outward extension part. The device comprises an inner heating part, an outer heating part and a compensation heating part, wherein the inner heating part and the outer heating part are used for heating the inner side and the outer side of a welding seam. The compensation heating portion can perform compensation heating on the extension portion. Because the material of epitaxial portion department is thicker, consequently absorb more heat easily and compensate the heating of heating portion to it for whole welded structure's heat treatment is more even abundant. Because of adopting the form of electric heating, the heat treatment operation is simple, and time and labor are saved.
Description
Technical Field
The utility model relates to a heat treatment technical field particularly, relates to a heat treatment device.
Background
During the welding of structural components, some circumferential welds typically require localized post-weld heat treatment to improve the performance of the weld area and eliminate the detrimental effects of weld residual stress, etc. For a structural member with a flange and pipe welding seam, taking a deep sea water-resisting sleeve as an example, the shape of the welding position of the flange and the pipe is irregular, the common heat treatment mode is difficult to heat uniformly and sufficiently, the expected effect cannot be achieved, the operation is time-consuming and labor-consuming, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat treatment device, it can carry out abundant, even geothermal treatment to the welded structure of pipe and flange to easy operation, the cost is lower.
The embodiment of the utility model is realized like this:
a heat treatment apparatus for heat-treating a joint portion of a product including a first member including a first cylinder and a second member axially joined to the first cylinder, the joint portion of the first cylinder and the second member having a weld, the heat treatment apparatus comprising:
an internal heating portion provided inside the weld;
an external heating part arranged outside the welding seam;
the compensation heating part is arranged on the first cylinder and/or the second member and can perform compensation heating on the extension part;
the internal heating part, the external heating part and the compensation heating part are provided with heating elements for providing heat.
In an embodiment of the present invention:
the internal heating part comprises a first fixing plate and a heating element arranged on the first fixing plate;
the external heating part comprises a second fixing plate and a heating element arranged on the second fixing plate;
the compensation heating part comprises a third fixing plate and a heating element arranged on the third fixing plate.
In an embodiment of the present invention:
the heat treatment device also comprises an insulation box and a partition plate, wherein the combination part of the product is arranged in the insulation box, the insulation box is provided with an opening, and the partition plate is arranged at the opening.
In an embodiment of the present invention:
the first member and/or the second member extend out of the incubator from the opening of the incubator, the part of the first member and/or the second member extending out of the incubator is provided with an inner cavity, and the partition plate is arranged in the inner cavity.
In an embodiment of the present invention:
the inner heating part, the outer heating part and the compensation heating part are jointed with the combination part of the product.
In an embodiment of the present invention:
the second component is provided with the extension portion, and the extension portion is the flange, and first barrel is located one side of flange.
In an embodiment of the present invention:
one end of the compensation heating part is provided with an opening, and the size of the opening is adjustable.
In an embodiment of the present invention:
the compensation heating part is connected with the external heating part and comprises a third fixing plate which is integrally arranged in an annular shape.
In an embodiment of the present invention:
the second component is a second cylinder body which is arranged on the other side of the flange relative to the first cylinder body, and the heat treatment device further comprises an auxiliary heating part which is used for heating the second cylinder body.
In an embodiment of the present invention:
the heating element is an electric ceramic heating sheet.
The embodiment of the utility model provides a beneficial effect is:
the utility model discloses heat treatment device for carry out heat treatment to the product, the product includes first component and the second component of axial connection, first component include with the first barrel of second component axial connection, two component junctions have the welding seam, heat treatment device is including the interior heating portion and the outer heating portion and the compensation heating portion that are used for heating the inside and outside both sides of welding seam. The first cylinder and/or the second member are/is provided with an extension portion, and the compensation heating portion can perform compensation heating on the extension portion. Because the material of epitaxial portion department is thicker, consequently absorb more heat easily and compensate the heating of heating portion to it for whole welded structure's heat treatment is more even abundant. Because of adopting the form of electric heating, the heat treatment operation is simple, and time and labor are saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a flange welding structure processed by a heat treatment device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a flange welded structure processed by a heat treatment apparatus according to another embodiment of the present invention;
FIG. 3 is a schematic view of the installation of the incubator according to the embodiment of the present invention;
fig. 4 is a schematic structural view of an internal heating portion in an embodiment of the present invention;
FIG. 5 is a schematic structural view of an external heating portion according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a compensation heating part in an embodiment of the present invention;
FIG. 7 is a diagram illustrating a distribution of temperature measurement locations according to an embodiment of the present invention;
fig. 8 is a distribution diagram of temperature measuring points at the temperature measuring position in the embodiment of the present invention.
Icon: 100-an incubator; 102-a first opening; 104-a second opening; 106-a scaffold; 110-a first separator; 120-a second separator; 130-buckle; 200-internal heating part; 210-an inner fixing plate; 220-internal heating plate; 300-external heating part; 310-outer fixing plate; 320-external heating plate; 400-compensation of heating part; a 410-T shaped plate; 420-heating plate; 430-a gap; 500-auxiliary heating part; 600-flange welded construction; 610-a first cylinder; 620-second cylinder; 630-a flange; 640-a weld; 700-temperature measuring point.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
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 invention, it should be noted that the terms "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
Examples
Fig. 1 is a schematic view of a flange welding structure 600 processed by a heat treatment device according to an embodiment of the present invention. Referring to fig. 1, the present embodiment provides a heat treatment apparatus and a heat treatment method for a weld using the same. The heat treatment apparatus and the weld heat treatment method of the present embodiment are used for heat treatment of a product having a weld. The product comprises a first member and a second member which are axially combined, wherein the first member comprises a first cylinder body axially combined with the second member, and an extending part is arranged on the first cylinder body and/or the second member. In the present embodiment, the product is a flange welded structure 600, and the flange welded structure 600 includes a first cylinder 610, a flange 630 (i.e., an outer extension), and a second cylinder 620 (i.e., a second member) that are axially connected in this order, and a flange of the flange 630 protrudes outward from an outer circumferential side of the second cylinder 620. The first barrel 610 has a weld 640 thereon that extends circumferentially around the first barrel 610.
In the present embodiment, the flange 630 is heated as an extension portion by the compensation heating portion 400, and in other embodiments of the present invention, the product processed by the heat treatment apparatus may not include the flange but may be in the form of a shell adapter.
The heat treatment apparatus of the present embodiment includes an insulation box 100, an inner heating part 200 for adhering to an inner surface of a product bonding portion, an outer heating part 300 for covering an outer side of a first cylinder 610, and a compensation heating part 400 for adhering to a side of a flange 630 facing the first cylinder 610. In this embodiment, the heat insulation box 100 is cylindrical, and has a first opening 102 and a second opening 104 at two ends in the axial direction, respectively, so that when the flange welded structure 600 is subjected to heat treatment, the first cylinder 610 and the second cylinder 620 can partially protrude from the first opening 102 and the second opening 104, respectively, so as to facilitate heat treatment of products with long axial lengths. In this embodiment, the metal casing of the heat-insulating box 100 is made of a built-in heat-insulating material and is used for insulating the flange welded structure 600, the temperature of the product bonding region meets the requirements, and the heat treatment effect is improved. The metal material of the shell can be stainless steel, and the heat-insulating material can be aluminum silicate heat-insulating cotton. The thickness of the heat-insulating material needs to meet the sufficient heat-insulating capacity, so that the workpiece can be linearly heated or cooled as required in the heating and slow cooling processes. The length D of the incubator 100 in the axial direction satisfies:
where R is a radius of the first cylinder 610, t is a wall thickness of the first cylinder 610, and C is a dimension of the heating belt in the axial direction of the first cylinder 610. By limiting the length of the heat insulation box 100, the heating time in the early stage of the heat treatment process can be shortened while the heat insulation effect is satisfied, and the energy is saved. Optionally, in order to fully ensure the heat preservation effect, the length of the heat preservation sleeve is increased by 100-200mm after meeting the minimum requirement. In order to facilitate the placement and removal of the workpiece, the outer casing of the thermal container 100 is formed by two axially extending shells with a semicircular cross section. One sides of the two shells with semicircular sections are hinged together, and the other sides are detachably connected through a buckle 130. This catch 130 may be in the form of a snap. Alternatively, the two housings with semicircular sections can be detachably connected at both sides by the fasteners 130. In order to provide the flange welding structure 600 with good stability in the heat insulation box 100, a bracket (not shown) may be optionally provided in the heat insulation box 100, or a bracket (not shown) may be optionally provided outside the opening of the heat insulation box 100, so as to provide support for the workpiece during heating.
In order to further prevent heat dissipation, a first partition plate 110 is optionally disposed in the first cylinder 610, and a second partition plate 120 is optionally disposed in the second cylinder 620, so as to partition the inner cavities of the first cylinder 610 and the second cylinder 620, respectively, and thus, the heat in the incubator 100 is difficult to be dissipated outwards. The first partition plate 110 is circular, the size of the first partition plate is matched with the inner diameter of the first cylinder 610, the first partition plate 110 comprises a heat-insulating circular aluminum plate and a heat-insulating material arranged on the aluminum plate, the thickness of the heat-insulating material is 10-30cm, and the heat-insulating material can be adjusted according to actual conditions. The second partition 120 is similar in structure and function to the first partition 110 and is sized to fit the inside diameter of the second cylinder 620.
Fig. 3 is a schematic view illustrating the installation of the incubator 100 according to an embodiment of the present invention. Referring to fig. 1 and 3, when the incubator 100 is used, the axis of the incubator 100 is substantially horizontal, that is, the first cylinder 610 and the second cylinder 620 of the flange welding structure 600 are also substantially horizontal, in order to fix the incubator 100 and prevent the incubator 100 from deforming at high temperature, the support frame 106 may be used to support the incubator 100, the support portion of the support frame 106 may be an arc strip or an arc surface adapted to the outer surface of the incubator 100, so that the incubator 100 is stable and is not easily deformed, the upper portion of the incubator 100 is respectively connected to a bracket (not shown) by a chain or a connecting rod, the chain or the connecting rod is retractable, and the support frame 106 is of a lifting structure, so as to facilitate opening and closing the incubator.
Fig. 4 is a schematic structural diagram of an internal heating portion 200 according to an embodiment of the present invention. Referring to fig. 4, in the present embodiment, the internal heating portion 200 includes a cylindrical internal fixing plate 210 and an internal heating plate 220 disposed outside the internal fixing plate 210, the internal heating plate 220 includes a plurality of electric ceramic heating plates, the internal heating plate 220 may be a track-type heating plate, so that the shape of the heating plate can be changed to fit the surface of a product, and the internal heating plate 220 is fixed to the outer side surface of the internal fixing plate 210 and is used to fit the inner side surface of the first cylinder 610 to heat the welding seam 640. In some embodiments (as shown in fig. 1), the inner diameters of the first cylinder 610 and the second cylinder 620 are uniform, and the inner surfaces are smoothly connected, so that the length of the inner heating plate 220 of the inner heating part 200 in the axial direction is sufficient to simultaneously adhere to parts of the inner surfaces of the first cylinder 610 and the second cylinder 620. In other embodiments, the inner diameters of the first cylinder 610 and the second cylinder 620 are not uniform, so that there is a slope at the connection point where the internal heating portion 200 can be appropriately deformed to fit closely, as in the case of fig. 2. In this embodiment, the electric ceramic heating chip is connected to an external power source through a wire (not shown).
Fig. 5 is a schematic structural diagram of an external heating portion 300 according to an embodiment of the present invention. Referring to fig. 5, the external heating unit 300 has a similar principle to the internal heating unit 200, and includes a cylindrical external fixing portion and an external heating plate 320 fixed to an inner side surface of the external fixing portion, and the external heating plate 320 also includes an electric ceramic heating sheet for attaching to an outer side surface of the first cylinder 610 and heating a vicinity of the weld joint 640. The inner fixing plate 210 and the outer fixing plate 310 may be stainless steel plates, mounting holes for fixing heating plates are formed in both the inner fixing plate 210 and the outer fixing plate 310, and the inner heating plate 220 and the outer heating plate 320 may be fixed to the inner fixing plate 210 and the outer fixing plate 310 by bolts. In order to reduce the heat dissipation speed of the heat affected zone, ensure that the temperature of the heat affected zone meets the requirements and improve the heat treatment quality, a heat insulation material can be arranged between the fixing plate (comprising the inner fixing plate 210 and the outer fixing plate 310) and the heating plate (comprising the inner heating plate 220 and the outer heating plate 320), or the heat insulation material is arranged on one side of the fixing plate, which is far away from the heating plate, and the heat insulation material can be heat insulation cotton and the like. For convenience of installation, the inner fixing plate 210 includes a plurality of arc-shaped plates, for example, two arc-shaped plates, and the two arc-shaped plates are combined to form a cylinder shape; the outer fixing plate 310 also includes a plurality of arc-shaped plates, for example, four arc-shaped plates with a quarter circle cross section, which are combined to form a cylinder shape, and correspondingly, the inner heating plate 220 and the outer heating plate 320 may also be divided into two or four pieces.
Alternatively, the outer heating part 300 and the inner heating part 200 are aligned at an end away from the flange 630; near one end of the second cylinder 620, the internal heating portion 200 may be covered further due to no blocking of the flange 630 in some cases. The heating belt is arranged near the welding seam 640, the heating belt on the side of the welding seam 640 far away from the flange 630 is covered by the inner heating part and the outer heating part, and the dimension C of the heating belt in the axial direction of the first cylinder 610 is as follows:
wherein, R is the radius of the first cylinder 610, w is the width of the weld 640, and t is the wall thickness of the first cylinder 610; the dimensions of the internal heating portion 200 and the external heating portion 300 in the axial direction of the first cylindrical body 610 are not less than C, that is, the axial length of the overlapping portion of the external heating portion 300 and the internal heating portion 200 in the axial direction of the first cylindrical body 610 is explained to be not less than C. In order to sufficiently ensure the heating quality, the overlapping portions of the internal heating section 200 and the external heating section 300 in the axial direction of the first cylinder 610 may be optionally increased by 100 and 200mm on the basis of the dimension C. The length C of the heating belt is limited, so that the heat treatment effect can be met, and meanwhile, the energy is saved.
Fig. 6 is a schematic structural diagram of the compensating heating portion 400 according to an embodiment of the present invention. Referring to fig. 6, in the present embodiment, the offset heating part 400 includes a T-shaped plate 410 and a flange heating plate fixed to the T-shaped plate 410, and the flange heating plate may be fixed by bolts, similar to the inner heating part 200 and the outer heating part 300. In the present embodiment, one end of the T-shaped plate 410 is connected to one end of the outer fixing plate 310, and is bent and extended radially outward relative to the outer fixing plate 310, and the connection manner may be a fixed connection, such as welding, bolting, and the like. The compensating heating part 400 in this embodiment includes 10T-shaped plates 410, the 10T-shaped plates 410 are uniformly arranged around the circumferential direction, and the angle at which the T-shaped plates 410 are bent and extended outward may be set according to the specific shape of the flange welding structure 600, for example, if the transition portion between the first cylinder 610 and the flange 630 is an arc, the T-shaped plates 410 may be bent into a shape with a certain arc (as in the case shown in fig. 2). Or the size of the opening at one end of the compensating heating part 400 is adjusted by elastic deformation of the T-shaped plate 410, and the compensating heating part 400 can be closely attached to the surface of the flange 630. The flange heating plate includes a plurality of (e.g., 10) heating plates 420, the heating plates 420 have a substantially trapezoidal shape (or may have other shapes, such as a sector ring), and each heating plate 420 is correspondingly fixed to the T-shaped plate 410 by bolts. Alternatively, each of the heat patches 420 is circumferentially connected to each other, but a slit 430 is formed between adjacent two of the heat patches 420, the slit 430 extends from the outer edge of the flange heating plate toward the center, and the length of the slit 430 is half of the radial dimension of the heat patches 420. This facilitates bending of the ends of the heating sheet 420 to accommodate heating locations of different shapes. In this embodiment, the heating plate 420 is composed of an electric ceramic heating plate. In the embodiment, the arrangement of the compensating heating part reduces the heat dissipation speed of the heat affected zone, the temperature of the heat affected zone meets the requirement, and the heat treatment quality is improved.
In addition, in order to facilitate the better conformity of the heat patch 420 to the surface of the flange 630, the heat patch 420 may be optionally provided with an opening (not shown) extending inwardly from the outer edge, and the length of the opening may be half the radial length of the heat patch 420. The structure makes the two parts of the outer end of the heating plate 420 divided by the opening can be bent and adjusted without interfering with each other.
It should be understood that in other embodiments of the present invention, the number of the T-shaped plates 410 and the number of the heating plates 420 of the compensation heating part 400 may be adjusted, for example, 4, 8, etc. for the convenience of matching with the outer fixing plate 310 (assembled by 4 arc-shaped plates). In some other embodiments of the present invention, the T-shaped plate 410 of the compensating heating part 400 may not be connected to the external fixing plate 310 of the external heating part 300, but may be provided independently. In addition, in another embodiment of the present invention, the fixing plates of the inner heating part 200, the outer heating part 300, and the compensation heating part 400 may be connected to the heating plate by other methods such as welding, riveting, and binding, instead of using bolts.
In addition, in the present embodiment, the heat treatment apparatus further includes an auxiliary heating part 500, and the auxiliary heating part 500 has the same structure as the external heating part 300, and the specific size can be adjusted. The auxiliary heating part 500 is used for being sleeved outside the second cylinder 620 and close to the flange 630, and is used for heating the second cylinder 620, so that the heat dissipation speed of a heat affected zone is reduced, the temperature of the heat affected zone meets the requirement, and the heat treatment quality is improved.
In addition, it is preferable that a thermocouple be disposed in each of the central region of the heating part and the heat-affected zone of the weld 640. Fig. 7 is a temperature measurement position distribution diagram in the embodiment of the present invention, fig. 8 is a distribution diagram of temperature measurement position temperature measurement points 700 in the embodiment of the present invention, each temperature measurement position is uniformly arranged on the inner and outer sides of the heat affected zone along the circumferential direction, and a, b, c, d, e, f, g, h represent different temperature measurement positions. Preferably, each temperature measuring position can be provided with 2-4 temperature measuring points 700, as shown in fig. 8, each temperature measuring position is provided with 3 temperature measuring points 700, each temperature measuring point 700 is provided with 1 thermocouple, a plurality of thermocouple cloths outside the welding seam are uniformly arranged on the welding seam along the first cylinder axis, and a plurality of thermocouple cloths inside the welding seam are uniformly arranged on the welding seam and on two sides of the welding seam along the first cylinder axis. Preferably, the temperature of the heating belt is increased from the ambient temperature to 635 +/-30 ℃ at a temperature increasing speed of 80-100 ℃/h, and the holding time is as follows: 2-3h, the temperature deviation of each temperature measuring point is within +/-15 ℃, and then the temperature is reduced at the speed of 120-140 ℃/h. The temperature data measured by the thermocouples at all points are fed back to the control system in real time, an actual temperature curve is generated, the actual temperature curve is compared with a preset temperature curve, if the deviation exceeds the preset value, the control system automatically adjusts the temperature of heat treatment, the temperature of a heating zone meets the requirement, and the heat treatment quality is improved.
The use method of the heat treatment device of the embodiment comprises the following steps:
s1, assembling the inner heating unit 200, the outer heating unit 300, the offset heating unit 400, and the auxiliary heating unit 500, and fixing various heating plates to corresponding fixing plates by bolts. And after the bolts are fixed, the heating plate and the fixing plate are tightened and fixed by using a steel belt.
S2, the internal heating unit 200 is placed inside the first cylindrical body 610 so that the internal heating plate 220 is attached to the first cylindrical body 610 near the weld joint 640, and the internal heating unit 200 is placed at a position sufficient to ensure that the temperature of the heat affected zone around the weld joint 640 (the width of the heat affected zone of the weld joint 640 is about 10-20mm) meets the heat treatment requirements. Optionally, the position of the inner heating plate 220 includes the heat affected zone of the weld 640, the thick wall of the flange 630 and a part of the second cylinder 620. Preferably, the one-side weld 640 having the flange 630 has a ratio of 2: 1, the inner heating part 300 and the outer heating part 300 are aligned on the side of the welding line 640 without the flange 630, so that the heat radiation speed of a heat affected zone is reduced, the temperature of the heat affected zone meets the requirement, and the heat treatment quality is improved. The compensating heating portion 400 is attached to a joint of the first cylinder 610 and the flange 630, and a portion of the flange 630. By adjusting the angle of the heating plate 420, the heating plate 420 and the flange 630 are fully attached to the joint of the cylinder, and heating gaps and dead angles are eliminated. In addition, the auxiliary heating part 500 is sleeved on the second cylinder 620, and the distance from the flange 630 is as close as possible, optionally, the distance is not more than 5cm, and the auxiliary heating part is tightly attached to the thick wall of the flange 630 to heat the thick wall of the flange 630, so as to avoid the poor heating effect of the thick cylinder on the heat absorption of the heat affected zone.
S3, after the respective heating units are laid, the flange welded structure 600 with the respective heating units laid thereon is covered with the heat insulating box 100, the weld 640 and the flange 630 of the flange welded structure 600 are covered with the heat insulating box 100, and the first tubular body 610 and the second tubular body 620 partially protrude from the first opening 102 and the second opening 104, respectively. Optionally, the center of the welding 640 is disposed at the center of the thermal insulation box 100, and then the buckle 130 on the outer shell of the thermal insulation box 100 is buckled to realize sealing and fixing.
S4, placing the first partition board 110 inside the first cylinder 610, placing the second partition board 120 inside the second cylinder 620, wherein the distance between the two heat preservation partition boards is enough to contain the whole heating area. Optionally, the inner and outer sides of the partition are aligned with the inner and outer sides of the cabinet 100.
The heat insulation material is stuffed in the gap 430 between the two partition boards and the corresponding cylinder body, so that the sealing and heat insulation between the partition boards and the heat insulation box 100 are realized, and the heat insulation efficiency is improved.
And S5, electrifying to heat and preserve heat of the workpiece.
And S6, removing the heat treatment device after the heat treatment is finished.
To sum up, the utility model discloses heat treatment device for carry out the heat treatment to the product, the product includes first component and the second component of axial connection, first component include with the first barrel of second component axial connection, two component junctions have the welding seam, heat treatment device is including the interior heating portion and the outer heating portion and the compensation heating portion that are used for heating the inside and outside both sides of welding seam. The first cylinder and/or the second member are/is provided with an extension portion, and the compensation heating portion can perform compensation heating on the extension portion. Because the material of epitaxial portion department is thicker, consequently absorb more heat easily and compensate the heating of heating portion to it for whole welded structure's heat treatment is more even abundant. Because of adopting the form of electric heating, the heat treatment operation is simple, and time and labor are saved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A heat treatment apparatus for heat-treating a joint portion of a product including a first member including a first cylinder and a second member axially joined to the first cylinder, the joint portion of the first cylinder and the second member having a weld, the heat treatment apparatus comprising:
an internal heating portion provided inside the weld;
an external heating part arranged outside the welding seam;
the compensating heating part is provided with an extension part on the first cylinder and/or the second member and can perform compensating heating on the extension part;
the inner heating part, the outer heating part and the compensation heating part are provided with heating elements for providing heat.
2. The thermal processing apparatus of claim 1, wherein:
the internal heating part comprises a first fixing plate and a heating element arranged on the first fixing plate;
the outer heating part comprises a second fixing plate and a heating element arranged on the second fixing plate;
the compensation heating part comprises a third fixing plate and a heating element arranged on the third fixing plate.
3. The thermal processing apparatus of claim 1, wherein:
the heat treatment device further comprises an insulation box and a partition plate, the combination part of the product is arranged in the insulation box, the insulation box is provided with an opening, and the partition plate is arranged at the opening.
4. The thermal processing apparatus of claim 3, wherein:
the first member and/or the second member extend out of the incubator from the opening of the incubator, the part of the first member and/or the second member extending out of the incubator is provided with an inner cavity, and the partition plate is arranged in the inner cavity.
5. The thermal processing apparatus of claim 1, wherein:
the inner heating part, the outer heating part and the compensation heating part are attached to the combination part of the product.
6. The thermal processing device according to any one of claims 1 to 5, characterized in that:
the second component is provided with an extending portion, the extending portion is a flange, and the first barrel is located on one side of the flange.
7. The thermal processing apparatus of claim 6, wherein:
an opening is formed in one end of the compensation heating portion, and the size of the opening is adjustable.
8. The thermal processing apparatus of claim 6, wherein:
the compensation heating part is connected with the external heating part and comprises a third fixing plate which is integrally arranged in an annular shape.
9. The thermal processing apparatus of claim 6, wherein:
the second member is a second cylinder provided on the other side of the flange with respect to the first cylinder, and the heat treatment apparatus further includes an auxiliary heating unit for heating the second cylinder.
10. The thermal processing apparatus of claim 1, wherein:
the heating element is an electric ceramic heating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920328385.2U CN209923395U (en) | 2019-03-14 | 2019-03-14 | Heat treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920328385.2U CN209923395U (en) | 2019-03-14 | 2019-03-14 | Heat treatment device |
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| CN209923395U true CN209923395U (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777943A (en) * | 2019-03-14 | 2019-05-21 | 山东豪迈机械制造有限公司 | A kind of annealing device and weld seam heat treatment method |
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2019
- 2019-03-14 CN CN201920328385.2U patent/CN209923395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777943A (en) * | 2019-03-14 | 2019-05-21 | 山东豪迈机械制造有限公司 | A kind of annealing device and weld seam heat treatment method |
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