Ship high-pressure hydraulic tube maintenance method

A technology of hydraulic pipes and high pressure is applied in the field of repair and maintenance of ship components, which can solve the problems of high maintenance cost and inconvenient maintenance, and achieve the effect of reducing the scrap rate and saving costs.

Inactive Publication Date: 2019-06-07
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for overhauling high-pressure hydraulic pipes of ships in order to overcome the defects of welding defects in the prior art that are inconvenient to repair and require remanufacturing of the pipes, resulting in high repair costs

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  • Ship high-pressure hydraulic tube maintenance method

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Embodiment Construction

[0014] A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0015] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

[0016] Such as figure 1 As shown, the embodiment of the present invention discloses a method for overhauling a ship's high-pressure hydraulic pipe, which includes the f...

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Abstract

The invention provides a ship high-pressure hydraulic tube maintenance method. The ship high-pressure hydraulic tube maintenance method comprises the following steps: S1, using an X-ray flaw detectionand inspection method to find defects at a welding seam and to determine the positions of the defects; S2, using a carbon-arc gouging method to clear the defects and prolong lengths of the two ends of each defect during clearing; S3, repeating the steps S1 and S2 until all defects are cleared; and S4, forming a bottoming layer at the welding seam, forming a filling layer on the bottoming layer, forming a surface cover layer on the filling layer, and grinding oxide scales at the welding seam and around the welding seam to grind the welding seam. The ship high-pressure hydraulic tube maintenance method provided by the invention can guarantee the welding quality at the welding seam after ship high-pressure hydraulic tube maintenance, can completely clear the defects without replacing the whole tube, greatly reduces a tube rejection rate, and reduces the cost.

Description

technical field [0001] The invention relates to the field of overhaul and maintenance of ship parts, in particular to a method for overhauling a high-pressure hydraulic pipe of a ship. Background technique [0002] Ship high-pressure hydraulic pipes are composed of steel pipes, elbows, and flanges. In this structure, the joints between steel pipes and steel pipes, and the joints between steel pipes and elbows are prone to welding defects, and there will be clamps in the welds. slag and pores, thus affecting the product quality, safety performance and service life of high-pressure hydraulic pipes for ships. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for overhauling high-pressure hydraulic pipes of ships in order to overcome the defects of inconvenient inspection and maintenance due to welding defects in high-pressure hydraulic pipes of ships in the prior art, and high maintenance costs due to the nee...

Claims

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Application Information

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IPC IPC(8): B23P15/00B23P6/00
Inventor 范冬冬杨伟忠
Owner SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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