CN113134669B - A heating device in a plasma welding box - Google Patents
A heating device in a 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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- 238000010438 heat treatment Methods 0.000 title claims abstract description 183
- 238000003466 welding Methods 0.000 title claims abstract description 69
- 239000011449 brick Substances 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 14
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 abstract description 8
- 238000010583 slow cooling Methods 0.000 abstract description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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
Description
技术领域technical field
本发明属于焊接设备技术领域,尤其涉及一种等离子焊箱内的加热装置。The invention belongs to the technical field of welding equipment, and in particular relates to a heating device in a plasma welding box.
背景技术Background technique
等离子焊接是一种高能束流熔焊方法,它利用高电压以及高频振荡击穿空气形成等离子弧,等离子弧熔化工件实现焊接。相较于传统氩弧焊而言,等离子焊接具有能量密度高、焊接速度快、深宽比大、应力变形小等特点。Plasma welding is a high-energy beam welding method, which uses high voltage and high-frequency oscillation to break down the air to form a plasma arc, and the plasma arc melts the workpiece to achieve welding. Compared with traditional argon arc welding, plasma welding has the characteristics of high energy density, fast welding speed, large aspect ratio, and small stress deformation.
采用等离子焊接方法时,由于焊缝处温度急剧升高以及焊后过快的冷却速率,工件表面以及焊缝处往往会因应力集中产生裂纹,尤其当工件是脆性金属材料时,更容易开裂。裂纹的产生严重影响了工件的性能以及后续应用,是应当避免的。通常采用焊前预热及焊后保温来解决上述问题,所以在焊箱中配备加热装置是极其有必要的。When the plasma welding method is used, due to the sharp increase in the temperature of the weld and the rapid cooling rate after welding, cracks often occur on the surface of the workpiece and the weld due to stress concentration, especially when the workpiece is a brittle metal material, it is easier to crack. The generation of cracks seriously affects the performance of the workpiece and subsequent applications, and should be avoided. Preheating before welding and heat preservation after welding are usually used to solve the above problems, so it is extremely necessary to equip the welding box with a heating device.
通常加热装置可以分为接触式加热与非接触式加热。中国专利(公开号:CN102962611A)公开了一种大型厚壁工件动态焊接装置,包括加热炉,所述加热炉设有一个上端敞口的圆柱状腔体,腔体内侧壁与内底壁安装有保温层,底部保温层上底面安装有若干台燃烧器,利用燃烧器喷出的热量来加热工件。此专利属于非接触式加热,利用旋转来较为均匀地加热工件,但很难控制加热温度。Generally, heating devices can be divided into contact heating and non-contact heating. Chinese patent (publication number: CN102962611A) discloses a dynamic welding device for large-scale thick-walled workpieces, including a heating furnace. The heating furnace is provided with a cylindrical cavity with an open upper end. Insulation layer, several burners are installed on the bottom surface of the bottom insulation layer, and the heat emitted by the burners is used to heat the workpiece. This patent belongs to non-contact heating, which uses rotation to heat the workpiece more uniformly, but it is difficult to control the heating temperature.
中国专利(公开号:CN208033953U)公开了一种焊接加热装置,包括上焊接座和下焊接座,所述上焊接座和下焊接座内部设置有加热装置,所述加热装置为盘式感应线圈,所述上焊接座下端设置有第一石墨板,所述下焊接座上端设置有第二石墨板,通过盘式感应线圈加热第一、第二石墨板,从而对所夹工件进行加热。Chinese patent (publication number: CN208033953U) discloses a welding heating device, including an upper welding seat and a lower welding seat, and a heating device is arranged inside the upper welding seat and the lower welding seat, and the heating device is a disc induction coil, The lower end of the upper welding seat is provided with a first graphite plate, and the upper end of the lower welding seat is provided with a second graphite plate, and the first and second graphite plates are heated by a disc induction coil to heat the clamped workpiece.
中国专利(公开号:CN111055055A)公开了一种筒体内壁环缝焊接加热装置,包括电加热带与弹性钢带,所述电加热带沿环缝铺设于筒体内壁上,所述弹性钢带卷曲成环形叠置于所述电加热带上,利用弹性钢带的弹性使电加热带紧贴筒体内壁。Chinese patent (publication number: CN111055055A) discloses a welding heating device for the inner wall of the cylinder, including an electric heating belt and an elastic steel belt, the electric heating belt is laid on the inner wall of the cylinder along the annular seam, and the elastic steel belt It is curled into a ring and stacked on the electric heating belt, and the electric heating belt is closely attached to the inner wall of the cylinder by utilizing the elasticity of the elastic steel belt.
以上两种专利利用接触式加热,但都是针对特定形状的焊接工件而言,并且缺少特定的保温措施。The above two patents utilize contact heating, but both are aimed at welding workpieces of specific shapes, and lack specific heat preservation measures.
发明内容Contents of the invention
本发明提供的等离子焊箱内的加热装置,可以置于等离子焊箱内,根据工件的形状调整夹具,并且设置了良好的保温装置以及对等离子焊枪的保护装置。除此之外,本发明可实现对工件的整体加热,并精确地控制加热温度。The heating device in the plasma welding box provided by the present invention can be placed in the plasma welding box, the fixture is adjusted according to the shape of the workpiece, and a good heat preservation device and a protection device for the plasma welding torch are provided. In addition, the present invention can realize the overall heating of the workpiece and precisely control the heating temperature.
具体的,本发明提供一种等离子焊箱内的加热装置,包括加热室外壳体、设置在所述加热室外壳体上端的等离子焊枪、位于所述加热室外壳体内的加热平台和安装在所述加热平台上的加热管;Specifically, the present invention provides a heating device in a plasma welding box, which includes a heating outdoor casing, a plasma torch arranged on the upper end of the heating outdoor casing, a heating platform located in the heating outdoor casing, and a heating platform installed in the heating outdoor casing. Heating tubes on the heating platform;
所述加热管外接加热控制系统,所述加热管上还设置有温度监测模块,所述温度监测模块电连接所述加热控制系统,所述温度监测模块用于将所述加热管的温度信号传输给所述加热控制系统。The heating tube is externally connected to a heating control system, the heating tube is also provided with a temperature monitoring module, the temperature monitoring module is electrically connected to the heating control system, and the temperature monitoring module is used to transmit the temperature signal of the heating tube to the heating control system.
作为本发明的进一步说明,所述加热平台上设置多个水平分布的插孔,所述加热管装配在所述插孔内。As a further description of the present invention, a plurality of sockets distributed horizontally are arranged on the heating platform, and the heating pipes are assembled in the sockets.
作为本发明的进一步说明,所述加热装置还包括位于所述加热平台下方的多层耐火砖和水冷板,多层所述耐火砖位于所述水冷板和所述加热平台之间,所述水冷板外接水冷装置。As a further description of the present invention, the heating device also includes multi-layer refractory bricks and water-cooled plates located below the heating platform, the multi-layer refractory bricks are located between the water-cooled plates and the heating platform, and the water-cooled The board is externally connected to a water cooling device.
作为本发明的进一步说明,所述加热平台、所述耐火砖与所述水冷板上均设置竖向分布的螺纹孔,使所述加热平台、所述耐火砖与所述水冷板之间能够通过螺杆配合所述螺纹孔实现相连并固定。As a further description of the present invention, the heating platform, the refractory bricks and the water cooling plate are all provided with vertically distributed threaded holes, so that the heating platform, the refractory bricks and the water cooling plate can pass through The screw rods cooperate with the threaded holes to realize connection and fixation.
作为本发明的进一步说明,所述加热装置还包括隔热棉和围板,所述加热平台及所述耐火砖四周配合连接所述隔热棉,所述隔热棉四周连接所述围板。As a further description of the present invention, the heating device further includes heat insulation cotton and a surrounding board, the heating platform and the refractory brick are connected to the heat insulating cotton around, and the heat insulating cotton is connected to the surrounding board.
作为本发明的进一步说明,所述加热平台上设置有T形槽。As a further description of the present invention, the heating platform is provided with T-shaped grooves.
作为本发明的进一步说明,所述加热室外壳体包括加热室上壳体和加热室下壳体两部分,所述加热室上壳体滑动安装在所述加热室下壳体上端的水平移动框架上,使所述加热室上壳体能够移出所述加热室下壳体。As a further description of the present invention, the heating outdoor casing includes two parts, the heating chamber upper casing and the heating chamber lower casing, and the heating chamber upper casing is slidably installed on a horizontal moving frame at the upper end of the heating chamber lower casing above, the upper casing of the heating chamber can be moved out of the lower casing of the heating chamber.
作为本发明的进一步说明,所述加热室上壳体上端还设置开口,所述等离子焊枪通过所述开口伸入所述加热室外壳体内,所述开口一侧设置滑动模组,所述滑动模组与所述等离子焊枪上端连接,所述滑动模组用于将所述等离子焊枪伸入和伸出所述加热室外壳体。As a further description of the present invention, the upper end of the upper shell of the heating chamber is also provided with an opening through which the plasma torch protrudes into the outer shell of the heating chamber, and a sliding module is arranged on one side of the opening, and the sliding mold The group is connected with the upper end of the plasma welding torch, and the sliding module is used to extend the plasma welding torch into and out of the heating outer casing.
作为本发明的进一步说明,所述开口上还设置有隔热盖板。As a further description of the present invention, a heat insulating cover plate is also provided on the opening.
作为本发明的进一步说明,所述加热室外壳体由内侧硅酸铝板及外侧金属板固定连接组成,且所述硅酸铝板和所述金属板之间塞入隔热棉。As a further description of the present invention, the heating outdoor casing is composed of an inner aluminum silicate plate and an outer metal plate fixedly connected, and heat insulation cotton is inserted between the aluminum silicate plate and the metal plate.
与现有技术相比,本发明具有以下有益的技术效果:Compared with the prior art, the present invention has the following beneficial technical effects:
本发明针对传统等离子焊接工件易开裂的问题,设计了一种等离子焊箱内的加热装置。该加热装置采用热传导的方式对工件进行加热,并进行保温及缓冷处理,可以有效避免工件因应力集中而产生裂纹。并且热传导的加热方式可以设置指定温度,温度误差可以控制在较小的范围内,这对实验研究有很大的帮助;此外该加热装置上还配备滑动模组调整等离子焊枪的位置,可以有效保护焊枪。Aiming at the problem that traditional plasma welding workpieces are easy to crack, the invention designs a heating device in a plasma welding box. The heating device heats the workpiece by means of heat conduction, and performs heat preservation and slow cooling treatment, which can effectively avoid cracks in the workpiece due to stress concentration. And the heating method of heat conduction can set the specified temperature, and the temperature error can be controlled within a small range, which is of great help to the experimental research; in addition, the heating device is also equipped with a sliding module to adjust the position of the plasma torch, which can effectively protect welding torch.
附图说明Description of drawings
图1为本发明提供的等离子焊箱内的加热装置的结构示意图;Fig. 1 is the structural representation of the heating device in the plasma welding box provided by the present invention;
图2为本发明提供的控制等离子焊枪的滑动模组的结构示意图。Fig. 2 is a schematic structural diagram of a sliding module for controlling a plasma torch provided by the present invention.
附图标记说明:Explanation of reference signs:
1、焊箱外壳体;11、加热室上壳体;111、开口;112、隔热盖板;12、加热室下壳体;2、等离子焊枪;3、加热平台;31、T形槽;32、螺纹孔;4、加热管;5、隔热棉;6、围板;7、耐火砖;8、水冷板;9、滑动模组。1. The outer shell of the welding box; 11. The upper shell of the heating chamber; 111. The opening; 112. The heat insulation cover; 12. The lower shell of the heating chamber; 2. The plasma welding torch; 3. The heating platform; 31. The T-shaped slot; 32. Threaded hole; 4. Heating pipe; 5. Insulation cotton; 6. Hoarding; 7. Refractory brick;
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
因此,以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围,而是仅仅表示本发明的选定实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步定义和解释。It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,或者是该发明产品使用时惯常摆放的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”等仅用于区分描述,而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.
此外,术语“水平”、“竖直”等术语并不表示要求部件绝对水平或悬垂,而是可以稍微倾斜。如“水平”仅仅是指其方向相对“竖直”而言更加水平,并不是表示该结构一定要完全水平,而是可以稍微倾斜。Furthermore, the terms "horizontal", "vertical" and the like do not imply that a component is absolutely level or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.
在本发明的描述中,还需要说明的是,除非另有明确的规定和限定,术语“设置”、“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
下面将结合具体实施例对本发明的技术方案加以解释。The technical solutions of the present invention will be explained below in conjunction with specific embodiments.
如图1所示,一种等离子焊箱内的加热装置,包括加热室外壳体1、设置在所述加热室外壳体1上端的等离子焊枪2、位于所述加热室外壳体1内的加热平台3和安装在所述加热平台3上的加热管4;As shown in Figure 1, a heating device in a plasma welding box includes a heating outdoor casing 1, a
所述加热管4外接加热控制系统,所述加热管4上还设置有温度监测模块,所述温度监测模块电连接所述加热控制系统,所述温度监测模块用于将所述加热管4的温度信号传输给所述加热控制系统。The
为了有效提升所述加热管4对所述加热平台3的均匀加热性,所述加热平台3上设置多个水平分布的插孔,所述加热管4装配在所述插孔内。In order to effectively improve the uniform heating of the
在一种可实现的方式中,如图1所示,所述加热装置还包括位于所述加热平台3下方的多层耐火砖7和水冷板8,多层所述耐火砖7位于所述水冷板8和所述加热平台3之间,所述水冷板8外接水冷装置;所述加热装置还包括隔热棉5和围板6,所述加热平台3及所述耐火砖7四周配合连接所述隔热棉5,所述隔热棉5四周连接所述围板6;In a practicable manner, as shown in FIG. 1, the heating device further includes a multi-layer
隔热棉5和耐火砖7的设置,可以减少加热平台3热量的散失以及防止围板6与加热平台3接触造成损伤;而水冷板8则起到散热作用,水冷板8外接的水冷装置可以采用循环水冷机,循环水冷机将输出的冷却水通入水冷板8中,使其冷却后再将携带有热量的水循环至水冷机进行冷却。The setting of
为了方便将加热平台3、耐火砖7与水冷板8三者固定连接,如图1所示,所述加热平台3、所述耐火砖7与所述水冷板8上均设置竖向分布的螺纹孔32,使所述加热平台3、所述耐火砖7与所述水冷板8之间能够通过螺杆配合所述螺纹孔32实现相连并固定。In order to facilitate the fixed connection of the
如图1所示,所述加热平台3上设置有T形槽31,装夹有待焊试样的夹具可以轻松装配在T形槽31上,并且可以根据焊接需要移动改变位置。As shown in FIG. 1 , the
本发明提供的等离子焊箱内的加热装置,在使用时将其置于等离子焊箱内,并将加热控制系统和水冷装置均外接在等离子焊箱外侧,其可以根据工件的形状调整夹具位置,并且设置了良好的保温和水冷装置,可实现对工件的整体加热,并精确地控制加热温度。The heating device in the plasma welding box provided by the present invention is placed in the plasma welding box when in use, and the heating control system and the water cooling device are externally connected to the outside of the plasma welding box, which can adjust the position of the fixture according to the shape of the workpiece, In addition, a good heat preservation and water cooling device is set up, which can realize the overall heating of the workpiece and precisely control the heating temperature.
加热室外壳体1与加热平台3之间构成加热室,焊接时,等离子焊枪2需在加热室里进行操作。A heating chamber is formed between the heating outdoor shell 1 and the
在一种可实现的方式中,如图1所示,所述加热室外壳体1包括加热室上壳体11和加热室下壳体12两部分,所述加热室上壳体11滑动安装在所述加热室下壳体12上端的水平移动框架上,使所述加热室上壳体11能够移出所述加热室下壳体12,从而露出加热室以便放取试样。In a practicable manner, as shown in FIG. 1 , the heating outdoor casing 1 includes two parts, the heating chamber
如图1和图2所示,所述加热室上壳体11上端还设置开口111,所述等离子焊枪2通过所述开口111伸入所述加热室外壳体1内,所述开口111一侧设置滑动模组9,所述滑动模组9与所述等离子焊枪2上端连接,所述滑动模组9用于将所述等离子焊枪2伸入和伸出所述加热室外壳体1。As shown in Figures 1 and 2, an
在加热平台3的温度逐渐升高时,由于热辐射,会对长时间处于加热室内的等离子焊枪2造成损伤。因此,在加热室上壳体11上的开口111一侧安装了滑动模组9,其可以控制等离子焊枪2的升降以及水平方向的较小位移调整。When the temperature of the
如图2所示,所述开口111上还设置有隔热盖板112;升温阶段,隔热盖板112关闭,可以有效防止热量的散失,此时等离子焊枪2位于加热室上壳体11外部。焊接时,打开隔热盖板112,启动滑动模组9,将等离子焊枪2伸入加热室中进行焊接。待焊接完毕后,启动滑动模组9,升高等离子焊枪2离开加热室,并关闭隔热盖板112,以此实现对等离子焊枪2的保护。As shown in Figure 2, the
为了减少热量流失,以实现良好的保温作用,所述加热室外壳体1由内侧硅酸铝板及外侧金属板固定连接组成,且所述硅酸铝板和所述金属板之间塞入隔热棉5。In order to reduce heat loss and achieve a good heat preservation effect, the heating outdoor casing 1 is composed of an inner aluminum silicate plate and an outer metal plate fixedly connected, and heat insulation cotton is inserted between the aluminum silicate plate and the
上述等离子焊箱的使用原理如下:The principle of using the above plasma welding box is as follows:
本发明提供的加热装置在使用时,设置在可充氩等离子焊箱内,以满足等离子焊接时需通入氩气作为保护气的要求。The heating device provided by the invention is set in an argon-filled plasma welding box when in use, so as to satisfy the requirement that argon gas needs to be fed in as a shielding gas during plasma welding.
焊接前,移动加热室上壳体11,将装配有工件的夹具固定在加热平台3上,再关闭加热室上壳体11。启动加热管4并在加热控制系统设置指定温度,在加热管4达到指定温度后保温,由于热传导,加热平台3以及工件会逐渐升温并达到指定温度。本发明采用了热传导的加热方式,并采取了良好的保温措施,可以精确地控制工件在焊接时的温度。测定工件达到指定温度后,便可以启动等离子焊枪2进行焊接。焊接完毕后,可继续对工件进行保温或者缓冷处理。整个焊接过程中,试样均处于氩气氛围中。Before welding, the
最后应说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或等同替换,而不脱离本发明技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements can be made without departing from the spirit and scope of the technical solutions of the present invention.
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