Large austenite welding H-shaped steel assembly and rotation welding device

A welding device and H-shaped steel technology, which is applied in the field of nuclear power, can solve problems such as controlling the verticality and position of the H-shaped steel plate within the required range, high linear expansion coefficient of stainless steel, and deformation of H-shaped steel, etc., to achieve novel structure and easy Operation and prevention of welding deformation

Active Publication Date: 2018-12-25
HARBIN ELECTRIC CORP QINHUANGDAO HEAVY EQUIP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] (1) The weld seam of large-scale welded H-shaped steel is long. In order to ensure the quality of H-shaped steel, it is necessary to completely penetrate the weld seam at the butt joint of the steel plate and make it meet the higher requirements of non-destructive testing grade. The welding volume is large, but Due to the characteristics of high linear expansion coefficient, high resistivity and low thermal conductivity of stainless steel, it is easy to deform after welding and cooling, and it is difficult to control the verticality and position between the welded H-shaped steel plates within the required range;
[0005] (2) The flat welding position is used for welding, and the H-shaped steel needs to be turned over repeatedly. Since the welded H-shaped steel is generally longer and heavier, it is time-consuming and laborious to rely on manpower or spreaders to turn over and over again, and it will cause H-shaped steel during the process of lifting and free welding. The deformation of the welding seam needs to be corrected repeatedly

Method used

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  • Large austenite welding H-shaped steel assembly and rotation welding device
  • Large austenite welding H-shaped steel assembly and rotation welding device
  • Large austenite welding H-shaped steel assembly and rotation welding device

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Embodiment approach

[0094] According to a preferred embodiment of the present invention, the adjustment frame 11 further includes a positioning plate 111 disposed inside it, and the positioning plate 111 is used for positioning the position of the welded H-shaped steel plate.

[0095] In a further preferred embodiment, the positioning plate 111 is arranged on the upper surface of the bottom beam 114 , and the surface of the positioning plate is perpendicular to the bottom beam 114 .

[0096] In a further preferred embodiment, there are multiple positioning plates 111, which are evenly distributed inside the adjustment frame 1,

[0097] Preferably, the distance between the adjacent positioning plates 111 is 0.8-1.0m.

[0098] Wherein, the distribution position of the positioning plate on the bottom beam corresponds to the distribution position of the side beam on the bottom beam, preferably, the bottom edge of the positioning plate abuts against the side edge of the side beam.

[0099] According ...

Embodiment 1

[0165] Weld the large stainless steel H-beam with the specification of WH280×280×18×28, using Figure 1 to Figure 9 The shown welding device comprises the following steps:

[0166] (1) Adjust the top surfaces of multiple positioning plates to be in the same horizontal plane, and the sides are coplanar and parallel to the sides of the adjustment frame, then place the adjustment frame on two horizontal pads, and then lock and press several The block is fixed on the adjustment frame through the rotating shaft to form a pair frame;

[0167](2) Place the web horizontally on the top surface of the positioning plate, place the two wing plates on both sides of the positioning plate respectively; The welding groove of the web is at the same height; then pre-tighten the flange to fix the top wire, so that the inner side of the flange is close to the side of the positioning plate;

[0168] (3) Adjust the welding gap between the web plate and the fixed wing plate to 4mm, make the fixed ...

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Abstract

The invention discloses a large austenite welding H-shaped steel assembly and a rotation welding device. The device comprises an assembly frame (1) used for assembly and fixed-position welding of H-shaped steel plates, the two ends of the assembly frame (1) are provided with rotation supporting assemblies (2) so that the H-shaped steel can stably rotate in the welding process, and welding deformation is prevented. The welding device is ingenious in design, easy to operate, high in universality, high in welding quality and low in welding difficulty.

Description

technical field [0001] The invention relates to the field of nuclear power, in particular to the manufacture of large-scale welded H-shaped steel in waste heat discharge heat exchangers of nuclear power island equipment, and in particular to a large-scale stainless steel welded H-shaped steel pair and a rotary welding device. Background technique [0002] H-shaped steel is widely used in plant construction, high-rise buildings, bridge construction and other large steel structures, while large stainless steel H-shaped steel is often used in product structures with harsh conditions and harsh environments. For example, the waste heat removal heat exchanger of the nuclear island equipment of a nuclear power plant is soaked in the cooling water under the containment all the year round. The overall equipment is composed of a stainless steel H-shaped steel frame with a size of 280mm×280mm and a heat exchange tube bundle, which undertakes the important function of removing the waste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/047
CPCB23K37/047
Inventor 路扬王佐森潘海泉郭晓莉庄思明冯劢康凯佳
Owner HARBIN ELECTRIC CORP QINHUANGDAO HEAVY EQUIP
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