Machining and mounting method of ship hatch coaming trackway square steel

Abstract

The invention discloses a machining and mounting method of ship hatch coaming trackway square steel. The method comprises the following steps: arranging two rulers on two end points of a hatch coaming panel respectively; keeping that the distances from laser at the two end points of the latch coaming panel to the hatch coaming panel the same by using a laser theodolite; selecting a plurality of parts as testing points and measuring distances from the laser of the parts to the hatch coaming panel by using the rulers respectively; calculating the amount of machining An of the trackway square steel; performing cutting on each point of the trackway square steel according to the amount of machining An; arranging the trackway square steel at a corresponding position of the hatch coaming panel and welding. According to the method, the hatch coaming trackway square steel can be arranged better and more quickly, the service life of a hatch coaming can be greatly prolonged, the process is simple, the cost can be effectively reduced and excellent quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of ship building, in particular to a method for processing and installing ship hatch coaming track square steel. Background technique [0002] With the advancement of science and technology, the pace of modern shipbuilding is also getting faster and faster, and the shipping industry has higher and higher requirements for ships, which requires high-quality ships. [0003] According to the feedback information of the completed products, when the gap between the track square steel and the installation panel is greater than 5mm, the quality of the hatch coaming will be greatly affected by using backing plates or adding welding legs. [0004] The earliest ship hatchway track square steel installation required to ensure that the levelness error of the upper surface of the track square steel was within 2mm, and the track square steel was installed according to the gap tolerance (that is, beyond the allowable limit)...

AI Technical Summary

Problems solved by technology

[0006] ① When the gap distance between the track square steel and the installation panel is ≥16mm, since the height of the track square steel is less than 300mm, it cannot be processed according to this process

[0007] ②When the distance between the track square steel and the installation panel is 5mm to 16mm, perform backing treatment. The thickness of the backing plate should be between the thickness of the track square steel and the thickness of the installation panel. The thickness of the track square steel is 50mm, and the thickness of the installation panel Above 20mm, the thickness of the backing plate is greater than the gap between the track square steel and the installation panel, which is not suitable for the backing plate

[0008] ③When the distance between the track square steel and the installation panel is 5mm to 16mm, the back pad welding treatment is carried out. Since the front needs to open a breach, the angle is 30° to 45°, and the thickness and height of the track square steel are uniform. 50mm, the height of the groove surface of the track square steel is only 21mm at most after opening the breach, which will reduce the service life, and the workload of opening and welding is huge, the cost is high, and the quality cannot be guaranteed

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