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Connected metal link heat treatment process method

A process method and metal chain technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problems of destroying the performance of adjacent links and failing to meet the requirements of link processing

Active Publication Date: 2014-11-19
FOSHAN MARINE ANCHOR CHAIN
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The heat treatment temperature of the new chain link has reached more than 900 degrees Celsius, and the chain link is guaranteed to be heated evenly. The temperature difference between any part of the chain link does not exceed 40 °C, but the heat treatment of the new chain link cannot affect its adjacent links. The temperature at any position of the ring cannot exceed 250 degrees Celsius, otherwise it will damage the performance of the adjacent link and cannot meet the requirements of the classification society for the processing of the link

Method used

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  • Connected metal link heat treatment process method
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Embodiment Construction

[0021] refer to figure 1 , figure 2 , a kind of heat treatment method provided by the present invention has good heat treatment effect and has no influence on nearby links.

[0022] A. Wrap the cooling pipe 3 on other links 2 adjacent to the connecting link 1. According to the temperature, the winding density of the cooling pipe 3 is also different. The winding density of the cooling pipe 3 increases with the distance from the connecting link. 1 gradually decreases. In order to ensure the speed of heat dissipation, the cooling pipe 3 is hollow, and a cooling liquid flows inside the cooling pipe 3, through which the heat on other chain links 2 can be quickly dissipated, so that it is not affected. As a preferred embodiment, in order to speed up the heat dissipation, multiple groups of cooling pipes 3 may be provided, and each group of cooling pipes 3 is individually connected to a coolant pump to ensure rapid heat dissipation.

[0023] B. Wrap a heat-insulating and insulati...

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Abstract

The invention discloses a connected metal link heat treatment process method. The method comprises the following steps of: wrapping up an insulation layer on the outer surface of the connected link, and heating an inner metal through an outer induction coil so that the heat in the connected link is difficult to escape; and meanwhile, winding cooling pipes on other links close to the connected link, and rapidly taking away the heat generated in the connected link by the cooling pipe so that the other links are not affected. Through an experimental proof, the nearby links, particularly the connected links have the temperature lower than 150 DEG C in the heat treatment process, so that the requirement of classification society rule to chains processing is completely met.

Description

technical field [0001] The invention relates to a treatment process for single rings on anchor chains or mooring chains used on marine structural parts, in particular to a heat treatment process for barging metal chain links on anchor chains or mooring chains. Background technique [0002] Anchor chain or mooring chain is a chain that fixes marine structures such as ships and oil drilling platforms on the ocean. Due to the influence of marine climate and typhoon, its working environment is very harsh, so there are high requirements for this kind of chain, and it needs to have high Strength, low temperature brittleness resistance, corrosion resistance, fatigue resistance and other technical characteristics, and after final non-destructive testing, its internal and external quality must meet the requirements of classification societies of various countries. [0003] The production process of conventional anchor chains or mooring chains is: blanking, preheating, ring weaving, f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/40C21D1/18
Inventor 孙平
Owner FOSHAN MARINE ANCHOR CHAIN
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