A Correction Method for Anchor Fluke Deformation

Abstract

The invention discloses an anchor fluke deformation correction method which includes the steps: confirming a deformation portion, and measuring deformation amount; horizontally placing the anchor intoa furnace, and preparing a plurality of spacers for each anchor fluke; filling anchor flukes without deforming with a plurality of spacers to prevent deformation, placing spacers on the correspondingdeformed anchor flukes, and enabling the heights of the spacers of the corresponding portions of two anchor flukes to be same; placing heat-resistant heavy objects on the deformed anchor flukes, andenabling gravity stress points of the heat-resistant heavy objects to be positioned above the spacers; performing normalizing treatment at the temperature of 900 DEG C, enabling heating speed to not exceed 150 DEG C / hours, enabling heat preservation time to not be lower than 5 hours, and enabling the deformation portions to automatically reset normal positions after the anchor flukes are discharged from the furnace. The method has the advantages that local fire attacking and welding repairing is replaced, local residual stress caused by welding / fire attacking is removed, casting organizationstability is improved, replacement of a new anchor is omitted by an overall correction method, and cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of mooring equipment processing, and in particular relates to a method for correcting anchor fluke deformation. Background technique [0002] The anchor, usually made of cast steel, is the main part of the anchoring equipment. Its function is mainly to rely on the gravity of the anchor and the anchor chain, and insert it into the seabed to achieve the purpose of fixing and stabilizing the ship. However, during the anchoring operation, due to the extremely complicated seabed conditions (there are seabed rocks, etc.), or due to personnel operating errors, uneven grasping forces produced by the two anchor heads and unilateral stress will occur. If it is lightly bruised and worn, if it exceeds the critical point of the yield strength of the material, it will cause bending deformation, which seriously affects the safety of the ship. For deformed and bent anchor flukes, local fire attack welding is currently the ...

AI Technical Summary

Problems solved by technology

However, during the anchoring operation, due to the extremely complicated seabed conditions (there are seabed rocks, etc.), or due to personnel operating errors, the gripping force generated by the two anchor heads will be uneven, and the situation of unilateral force will occur.

Slight damage and wear, if the critical point of yield strength of the material is exceeded, bending deformation will occur, seriously affecting the safety of the ship

For deformed and bent anchor flukes, local fire attack welding is currently the main method of repairing. However, after this method is corrected, anchor flukes will have a certain amount of stress that will not be eliminated, which will reduce the fatigue resistance of the material, and there will be a safety hazard of fracture in subsequent use; replace the anchor fluke , which undoubtedly increases the production cost

[0003] At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

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