CN113134669B - Heating device in plasma welding box - Google Patents
Heating device in plasma welding box Download PDFInfo
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- CN113134669B CN113134669B CN202110452574.2A CN202110452574A CN113134669B CN 113134669 B CN113134669 B CN 113134669B CN 202110452574 A CN202110452574 A CN 202110452574A CN 113134669 B CN113134669 B CN 113134669B
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- heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
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Abstract
The invention discloses a heating device in a plasma welding box, which comprises a heating chamber outer shell, a plasma welding gun arranged at the upper end of the heating chamber outer shell, a heating platform positioned in the heating chamber outer shell and a heating pipe arranged on the heating platform; the heating pipe is externally connected with a heating control system, and a temperature monitoring module is further arranged on the heating pipe and is electrically connected with the heating control system, and the temperature monitoring module is used for transmitting a temperature signal of the heating pipe to the heating control system; the heating device also comprises a plurality of layers of refractory bricks and a water cooling plate which are positioned below the heating platform. The heating device heats the workpiece in a heat conduction mode, and performs heat preservation and slow cooling treatment, so that cracks of the workpiece due to stress concentration can be effectively avoided, the heat conduction heating mode can set a designated temperature, and the temperature error can be controlled in a smaller range; the sliding module is arranged on the heating chamber outer shell to adjust the position of the plasma welding gun, so that the welding gun can be effectively protected.
Description
Technical Field
The invention belongs to the technical field of welding equipment, and particularly relates to a heating device in a plasma welding box.
Background
The plasma welding is a high-energy beam fusion welding method, which utilizes high voltage and high-frequency oscillation to break down air to form a plasma arc, and the plasma arc melts a workpiece to realize welding. Compared with the traditional argon arc welding, the plasma welding has the characteristics of high energy density, high welding speed, large depth-to-width ratio, small stress deformation and the like.
When the plasma welding method is adopted, cracks are often generated on the surface of the workpiece and the welding seam due to stress concentration due to rapid temperature rise at the welding seam and too fast cooling rate after welding, and particularly when the workpiece is made of brittle metal materials, the cracks are more easy to crack. The occurrence of cracks severely affects the performance of the workpiece and subsequent applications, and should be avoided. The problems are usually solved by preheating before welding and heat preservation after welding, so that a heating device is necessary to be arranged in a welding box.
Generally, the heating device may be classified into contact type heating and non-contact type heating. Chinese patent (publication No. CN102962611 a) discloses a dynamic welding device for large thick-wall workpieces, comprising a heating furnace, wherein the heating furnace is provided with a cylindrical cavity with an open upper end, the inner side wall and the inner bottom wall of the cavity are provided with heat-insulating layers, the upper bottom surface of the bottom heat-insulating layer is provided with a plurality of burners, and the workpieces are heated by the heat sprayed by the burners. This patent pertains to non-contact heating, which utilizes rotation to heat the workpiece more uniformly, but it is difficult to control the heating temperature.
Chinese patent (publication No. CN 208033953U) discloses a welding heating device, which comprises an upper welding seat and a lower welding seat, wherein the heating devices are arranged inside the upper welding seat and the lower welding seat, the heating devices are disc-type induction coils, a first graphite plate is arranged at the lower end of the upper welding seat, a second graphite plate is arranged at the upper end of the lower welding seat, and the first graphite plate and the second graphite plate are heated by the disc-type induction coils, so that the clamped workpiece is heated.
Chinese patent (publication No. CN111055055 a) discloses a cylinder inner wall circumferential seam welding heating device, which comprises an electric heating belt and an elastic steel belt, wherein the electric heating belt is laid on the cylinder inner wall along the circumferential seam, the elastic steel belt is curled into a ring shape and overlapped on the electric heating belt, and the elastic steel belt is utilized to enable the electric heating belt to be clung to the cylinder inner wall.
Both of the above patents utilize contact heating, but are directed to welding workpieces of a particular shape and lack particular insulation measures.
Disclosure of Invention
The heating device in the plasma welding box provided by the invention can be arranged in the plasma welding box, the clamp is adjusted according to the shape of a workpiece, and a good heat preservation device and a plasma welding gun protection device are arranged. In addition, the invention can realize the integral heating of the workpiece and precisely control the heating temperature.
Specifically, the invention provides a heating device in a plasma welding box, which comprises a heating chamber outer shell, a plasma welding gun arranged at the upper end of the heating chamber outer shell, a heating platform positioned in the heating chamber outer shell and a heating pipe arranged on the heating platform;
the heating pipe is externally connected with a heating control system, a temperature monitoring module is further arranged on the heating pipe and is electrically connected with the heating control system, and the temperature monitoring module is used for transmitting a temperature signal of the heating pipe to the heating control system.
As a further illustration of the invention, a plurality of horizontally distributed jacks are provided on the heating platform, and the heating pipes are assembled in the jacks.
As a further explanation of the invention, the heating device also comprises a plurality of layers of refractory bricks and a water cooling plate, wherein the refractory bricks are positioned below the heating platform, the plurality of layers of refractory bricks are positioned between the water cooling plate and the heating platform, and the water cooling plate is externally connected with the water cooling device.
As a further explanation of the invention, the heating platform, the refractory bricks and the water cooling plate are all provided with threaded holes which are vertically distributed, so that the heating platform, the refractory bricks and the water cooling plate can be connected and fixed through matching of screw rods with the threaded holes.
As a further explanation of the invention, the heating device further comprises heat insulation cotton and coaming plates, the periphery of the heating platform and the periphery of the refractory bricks are connected with the heat insulation cotton in a matched mode, and the periphery of the heat insulation cotton is connected with the coaming plates.
As a further illustration of the invention, the heating platform is provided with a T-shaped slot.
As a further explanation of the present invention, the heating chamber outdoor housing comprises a heating chamber upper housing and a heating chamber lower housing, and the heating chamber upper housing is slidably mounted on a horizontal moving frame at the upper end of the heating chamber lower housing, so that the heating chamber upper housing can be moved out of the heating chamber lower housing.
As a further explanation of the invention, the upper end of the upper shell of the heating chamber is also provided with an opening, the plasma welding gun stretches into the outer shell of the heating chamber through the opening, one side of the opening is provided with a sliding module, the sliding module is connected with the upper end of the plasma welding gun, and the sliding module is used for stretching the plasma welding gun into and out of the outer shell of the heating chamber.
As a further illustration of the invention, the opening is also provided with a heat insulating cover plate.
As a further explanation of the present invention, the heating chamber housing is formed by fixedly connecting an inner aluminum silicate plate and an outer metal plate, and heat insulation cotton is inserted between the aluminum silicate plate and the metal plate.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention designs a heating device in a plasma welding box aiming at the problem that a traditional plasma welding workpiece is easy to crack. The heating device adopts a heat conduction mode to heat the workpiece, and performs heat preservation and slow cooling treatment, so that cracks of the workpiece due to stress concentration can be effectively avoided. The designated temperature can be set in a heating mode of heat conduction, and the temperature error can be controlled in a smaller range, so that the method is greatly helpful for experimental study; in addition, the heating device is also provided with a sliding module for adjusting the position of the plasma welding gun, so that the welding gun can be effectively protected.
Drawings
FIG. 1 is a schematic view of a heating device in a plasma welding chamber according to the present invention;
fig. 2 is a schematic structural diagram of a sliding module for controlling a plasma welding gun according to the present invention.
Reference numerals illustrate:
1. a welding box outer shell; 11. an upper housing of the heating chamber; 111. an opening; 112. a heat insulating cover plate; 12. a heating chamber lower case; 2. a plasma welding gun; 3. a heating platform; 31. a T-shaped groove; 32. a threaded hole; 4. heating pipes; 5. thermal insulation cotton; 6. coaming plate; 7. refractory bricks; 8. a water cooling plate; 9. and a sliding module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention 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 invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its 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 present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The technical scheme of the present invention will be explained in conjunction with specific embodiments.
As shown in fig. 1, a heating device in a plasma welding box comprises a heating chamber housing 1, a plasma welding gun 2 arranged at the upper end of the heating chamber housing 1, a heating platform 3 positioned in the heating chamber housing 1 and a heating pipe 4 arranged on the heating platform 3;
the heating pipe 4 is externally connected with a heating control system, a temperature monitoring module is further arranged on the heating pipe 4 and is electrically connected with the heating control system, and the temperature monitoring module is used for transmitting a temperature signal of the heating pipe 4 to the heating control system.
In order to effectively promote the heating pipe 4 to evenly heat the heating platform 3, a plurality of jacks distributed horizontally are arranged on the heating platform 3, and the heating pipe 4 is assembled in the jacks.
In one implementation, as shown in fig. 1, the heating device further includes a plurality of layers of refractory bricks 7 and a water cooling plate 8 below the heating platform 3, wherein the plurality of layers of refractory bricks 7 are located between the water cooling plate 8 and the heating platform 3, and the water cooling plate 8 is externally connected with a water cooling device; the heating device further comprises heat insulation cotton 5 and coaming 6, the periphery of the heating platform 3 and the periphery of the refractory bricks 7 are connected with the heat insulation cotton 5 in a matched mode, and the periphery of the heat insulation cotton 5 is connected with the coaming 6;
the heat insulation cotton 5 and the refractory bricks 7 are arranged, so that heat loss of the heating platform 3 can be reduced, and damage caused by contact between the coaming 6 and the heating platform 3 can be prevented; the water cooling plate 8 plays a role in heat dissipation, the water cooling device externally connected with the water cooling plate 8 can adopt a circulating water cooling machine, and the circulating water cooling machine is used for introducing the output cooling water into the water cooling plate 8 so as to cool the cooling water and then circulating the water carrying heat to the water cooling machine for cooling.
In order to facilitate the fixed connection of the heating platform 3, the refractory bricks 7 and the water cooling plate 8, as shown in fig. 1, the heating platform 3, the refractory bricks 7 and the water cooling plate 8 are provided with threaded holes 32 which are vertically distributed, so that the heating platform 3, the refractory bricks 7 and the water cooling plate 8 can be connected and fixed through screw rod matching with the threaded holes 32.
As shown in fig. 1, the heating platform 3 is provided with a T-shaped groove 31, and a clamp for clamping a sample to be welded can be easily assembled on the T-shaped groove 31 and can be moved to change the position according to the welding requirement.
The heating device in the plasma welding box is arranged in the plasma welding box when in use, and the heating control system and the water cooling device are externally connected to the outer side of the plasma welding box, so that the position of the clamp can be adjusted according to the shape of a workpiece, and the good temperature and water cooling device is arranged, so that the whole heating of the workpiece can be realized, and the heating temperature can be accurately controlled.
A heating chamber is formed between the heating chamber housing 1 and the heating platform 3, and the plasma welding gun 2 needs to operate in the heating chamber during welding.
In one implementation, as shown in fig. 1, the heating chamber outdoor housing 1 includes a heating chamber upper housing 11 and a heating chamber lower housing 12, and the heating chamber upper housing 11 is slidably mounted on a horizontally moving frame at an upper end of the heating chamber lower housing 12, so that the heating chamber upper housing 11 can be moved out of the heating chamber lower housing 12, thereby exposing the heating chamber for sample taking.
As shown in fig. 1 and 2, the upper end of the upper casing 11 of the heating chamber is further provided with an opening 111, the plasma welding gun 2 extends into the heating chamber outer casing 1 through the opening 111, one side of the opening 111 is provided with a sliding module 9, the sliding module 9 is connected with the upper end of the plasma welding gun 2, and the sliding module 9 is used for extending the plasma welding gun 2 into and out of the heating chamber outer casing 1.
When the temperature of the heating stage 3 gradually increases, the plasma torch 2, which is in the heating chamber for a long time, is damaged by heat radiation. Therefore, a slide module 9 is mounted on the side of the opening 111 in the heating chamber upper case 11, which can control the elevation and the small displacement adjustment in the horizontal direction of the plasma torch 2.
As shown in fig. 2, the opening 111 is further provided with a heat insulation cover plate 112; in the heating stage, the heat insulation cover plate 112 is closed, so that heat dissipation can be effectively prevented, and the plasma welding gun 2 is positioned outside the upper shell 11 of the heating chamber. During welding, the heat-insulating cover plate 112 is opened, the sliding module 9 is started, and the plasma welding gun 2 is extended into the heating chamber for welding. After the welding is finished, the sliding module 9 is started, the plasma welding gun 2 is lifted to leave the heating chamber, and the heat insulation cover plate 112 is closed, so that the plasma welding gun 2 is protected.
In order to reduce heat loss and achieve good heat preservation effect, the heating outdoor shell 1 is formed by fixedly connecting an inner side aluminum silicate plate and an outer side metal plate, and heat insulation cotton 5 is inserted between the aluminum silicate plate and the metal plate.
The use principle of the plasma welding box is as follows:
when the heating device provided by the invention is used, the heating device is arranged in the argon-filled plasma welding box so as to meet the requirement that argon is required to be introduced as shielding gas during plasma welding.
Before welding, the heating chamber upper housing 11 is moved, a jig equipped with a workpiece is fixed to the heating platform 3, and the heating chamber upper housing 11 is closed. The heating pipe 4 is started, the designated temperature is set in the heating control system, the heat is preserved after the heating pipe 4 reaches the designated temperature, and the heating platform 3 and the workpiece gradually rise in temperature and reach the designated temperature due to heat conduction. The invention adopts a heating mode of heat conduction and good heat preservation measures, and can accurately control the temperature of the workpiece during welding. After the workpiece is measured to reach the specified temperature, the plasma welding gun 2 can be started to weld. After the welding is finished, the workpiece can be continuously subjected to heat preservation or slow cooling treatment. In the whole welding process, the sample is in argon atmosphere.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (5)
1. A heating device in a plasma welding box, which is characterized in that: the plasma welding device comprises a heating outdoor shell (1), a plasma welding gun (2) arranged at the upper end of the heating outdoor shell (1), a heating platform (3) arranged in the heating outdoor shell (1) and a heating pipe (4) arranged on the heating platform (3);
the heating pipe (4) is externally connected with a heating control system, a temperature monitoring module is further arranged on the heating pipe (4), the temperature monitoring module is electrically connected with the heating control system, and the temperature monitoring module is used for transmitting a temperature signal of the heating pipe (4) to the heating control system;
the heating device further comprises a plurality of layers of refractory bricks (7) and a water cooling plate (8) which are positioned below the heating platform (3), wherein the plurality of layers of refractory bricks (7) are positioned between the water cooling plate (8) and the heating platform (3), and the water cooling plate (8) is externally connected with the water cooling device;
the heating device further comprises heat insulation cotton (5) and coaming plates (6), the periphery of the heating platform (3) and the periphery of the refractory bricks (7) are connected with the heat insulation cotton (5) in a matched mode, and the periphery of the heat insulation cotton (5) is connected with the coaming plates (6);
the heating chamber outdoor shell (1) comprises a heating chamber upper shell (11) and a heating chamber lower shell (12), wherein the heating chamber upper shell (11) is slidably arranged on a horizontal moving frame at the upper end of the heating chamber lower shell (12), so that the heating chamber upper shell (11) can be moved out of the heating chamber lower shell (12);
the upper end of the heating chamber upper shell (11) is further provided with an opening (111), the plasma welding gun (2) stretches into the heating chamber outer shell (1) through the opening (111), one side of the opening (111) is provided with a sliding module (9), the sliding module (9) is connected with the upper end of the plasma welding gun (2), and the sliding module (9) is used for stretching the plasma welding gun (2) into and out of the heating chamber outer shell (1); the sliding module (9) controls the lifting and the small displacement adjustment of the plasma welding gun (2) in the horizontal direction;
the heating outdoor shell (1) is formed by fixedly connecting an inner aluminum silicate plate and an outer metal plate, and heat insulation cotton (5) is inserted between the aluminum silicate plate and the metal plate;
the fixture for clamping the sample to be welded is assembled on the T-shaped groove (31) and moves to change the position according to the welding requirement.
2. A heating apparatus in a plasma torch according to claim 1, wherein: the heating platform (3) is provided with a plurality of jacks which are horizontally distributed, and the heating pipe (4) is assembled in the jacks.
3. A heating apparatus in a plasma torch according to claim 1, wherein: the heating platform (3) refractory bricks (7) and the water cooling plates (8) are provided with threaded holes (32) which are vertically distributed, so that the heating platform (3) refractory bricks (7) and the water cooling plates (8) can be connected and fixed through screw rod matching through the threaded holes (32).
4. A heating apparatus in a plasma torch according to claim 1, wherein: the heating platform (3) is provided with a T-shaped groove (31).
5. A heating apparatus in a plasma torch according to claim 1, wherein: and the opening (111) is also provided with a heat insulation cover plate (112).
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| CN202110452574.2A CN113134669B (en) | 2021-04-26 | 2021-04-26 | Heating device in plasma welding box |
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| CN202110452574.2A CN113134669B (en) | 2021-04-26 | 2021-04-26 | Heating device in plasma welding box |
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| CN113134669B true CN113134669B (en) | 2023-07-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113634862A (en) * | 2021-09-16 | 2021-11-12 | 无锡市新达共创纳米科技有限公司 | Plasma surfacing method for refractory brick mold surface |
| CN114918520A (en) * | 2022-06-21 | 2022-08-19 | 石河子大学 | Plasma surfacing control system for preventing inner hole cracks from being generated |
| CN114932300A (en) * | 2022-06-21 | 2022-08-23 | 石河子大学 | Plasma surfacing equipment for preventing inner hole cracks from being generated |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107969U (en) * | 1991-12-17 | 1992-06-24 | 西北工业大学 | Middle current plasma arc welder |
| CN209078013U (en) * | 2018-11-28 | 2019-07-09 | 宝鸡鼎晟真空热技术有限公司 | Forvacuum argon gas protects three gun-type plasma welding chambers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4785443B2 (en) * | 2004-06-29 | 2011-10-05 | 新日鉄エンジニアリング株式会社 | Method and apparatus for coating thin metal sheet on thick metal substrate surface |
| CN202071388U (en) * | 2011-03-14 | 2011-12-14 | 沈阳飞机工业（集团）有限公司 | Connecting mechanism of heating and pressure-bearing platform |
| CN202337002U (en) * | 2012-01-11 | 2012-07-18 | 北京智创联合科技有限公司 | Thermal forming device |
| CN204604716U (en) * | 2015-04-29 | 2015-09-02 | 常渭锋 | A kind of vacuum high-temperature heat pressing forming machines |
| CN205519437U (en) * | 2016-04-15 | 2016-08-31 | 天津市天锻压力机有限公司 | A heating platform device for superplastic forming hydraulic press |
| CN205519424U (en) * | 2016-04-15 | 2016-08-31 | 天津市天锻压力机有限公司 | Isothermal thermoforming hydraulic press heating heat preservation system |
| CN106903398B (en) * | 2017-04-19 | 2019-11-22 | 中国航发北京航空材料研究院 | Heat power supply welding method and its device are combined under a kind of vacuum/protective atmosphere |
| CN212822238U (en) * | 2020-07-31 | 2021-03-30 | 沈阳明日航材设备技术有限公司 | Prestressing force locking heating platform |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107969U (en) * | 1991-12-17 | 1992-06-24 | 西北工业大学 | Middle current plasma arc welder |
| CN209078013U (en) * | 2018-11-28 | 2019-07-09 | 宝鸡鼎晟真空热技术有限公司 | Forvacuum argon gas protects three gun-type plasma welding chambers |
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