Producing and installing process for heavy duty split sector door

Abstract

The invention discloses a technique for fabricating and installing heavy divided type fan-shaped gates, comprising the following steps: (1) a working platform is fabricated; (2) materials are aligned, cutting and blanking are carried out according to the requirement on design size; (3) an inner lining board is assembled and welded, top angles with curved edges and longitudinal edges and lower chord angles with lower edges are welded on the edge of the inner lining board, a longitudinal channel steel and a reinforcing rib are welded in the inner lining board, and a truss and a jockey pulley of the truss are assembled; (4) a joist is welded at the lower end of the lower chord angle and a main wheel is assembled at the lower end of the joist; (5) the inner lining board and the truss are hoisted, an exterior sheathing is assembled between the inner lining board and the truss; (6) concrete is poured between the inner lining board and the exterior sheathing; (7) after concrete setting, the exterior sheathing is removed, derusting by sandblast and paint spraying are carried out on the truss, the fan-shaped gate is electrically connected with an on-off switch, thus completing the fabricating and installing of the fan-shaped gate; (8) another fan-shaped gate is fabricated and installed according to the seven steps. The technique improves the quality of the fabricating and installing techniques.

Description

technical field [0001] The invention relates to a method for making and installing a door body structure, in particular to a process for making and installing a heavy-duty side-opening fan-shaped door. Background technique [0002] Due to the large volume and heavy tonnage of the existing heavy-duty fan-shaped doors, the construction is very difficult, the installation accuracy is low, and the construction time is long and the work efficiency is low. Among them, the welding and assembling process of the inner liner of the fan-shaped door adopts butt welding, but due to the large area, the length of the assembled weld is long (a single weld is as long as 7m), and the thickness of the inner liner is relatively thin (1cm). Therefore, It is easy to produce serious deformation during welding (such as figure 1 As shown), moreover, manual double-sided butt welding is labor-intensive and difficult to guarantee welding quality. Especially after the single-side welding of the single...

AI Technical Summary

Problems solved by technology

[0002] Due to the large size and heavy tonnage of the existing heavy-duty fan-shaped doors, the construction is very difficult, the installation accuracy is low, and the construction time is long and the work efficiency is low.

Among them, the welding and assembling process of the inner liner of the fan-shaped door adopts butt welding, but due to the large area, the length of the assembled weld is long (a single weld is as long as 7m), and the thickness of the inner liner is relatively thin (1cm). Therefore, It is easy to produce serious deformation during welding (such as figure 1 shown), moreover, manual double-sided butt welding is labor-intensive and difficult to guarantee welding quality

Especially after the single-side welding of the single-piece inner liner is completed, the inner liner must be lifted, turned over, the weld seam is cleaned and polished, and the reverse side is welded until the requirements are met. The process is complicated and the safety is poor, which may easily lead to weld cracking

Images