Manufacturing method of watertight cable special for deep diving equipment

Abstract

The invention discloses a manufacturing method of a watertight cable special for deep diving equipment. The manufacturing method of the watertight cable specifically comprises the following steps of wire drawing, wherein tinned copper single wires are manufactured through copper large drawing, medium drawing, small drawing and annealing tinning; conductor layered twisting and gluing, wherein layered twisting is performed on a conductor by adopting a special twisting mold; extrusion of an insulating layer, wherein an extrusion type mold is adopted; vulcanization of an insulating wire core, wherein steam vulcanization is performed on an insulating layer by adopting steam vulcanization under the steam pressure of 1.0-1.2 MPa; core layered cabling and gluing of the insulating wire; mold pressing, wherein the cable core is pressed by using a special pressing mold; outer sheath extruding; outer sheath irradiation cross-linking; and finished product inspection. According to the invention, thewatertight cable has the advantages of high watertight performance, high airtight performance, high seawater resistance, high marine organism corrosion resistance, wear resistance, no leakage and excellent halogen-free flame-retardant environment-friendly performance, and meets the requirements of watertight cables for deep diving equipment in China.

Description

technical field [0001] The invention belongs to the technical field of deep diving equipment application, and relates to a watertight cable manufacturing technology, in particular to a manufacturing method of a special watertight cable for deep diving equipment. Background technique [0002] At present, the cables used in major offshore projects rely on foreign imports, and their key technologies are monopolized by foreign countries. At present, the highest can pass the 8.0MPa, 6h longitudinal watertight test. There is still a big gap between domestic self-developed technology and foreign advanced level. Domestically produced watertight cables are generally based on the US military standard MIL-DTL-24643 and the national military standard GJB 1916. The product must pass the water tightness test and water pressure test specified in the standard, and the water pressure is different according to the use environment. At present, the water pressure of longitudinal watertight ca...

AI Technical Summary

Problems solved by technology

[0006] (1) Solve the problems of poor watertightness, airtightness, corrosion resistance, wear resistance and flame retardancy of the original watertight cables dedicated to deep diving equipment, and cannot meet the requirements of watertight cables for deep diving equipment in my country;

[0007] (2) To solve the problem of poor water pressure resistance of the original longitudinal watertight cable, it cannot be applied to the use of equipment at a water depth of 1000m and can effectively prevent toxic gases from entering the sealed cabin through the cable, and cannot effectively guarantee the safety of personnel and the safety of deep-sea ships run;

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