Preparation method of novel high-temperature-resistant waterproof branch cable assembly

Abstract

The invention discloses a preparation method of a novel high-temperature-resistant waterproof branch cable assembly. The preparation method comprises the following steps that S1, corresponding cables and a plurality of connectors are selected for branches according to categories; s2, the sheaths and the insulating layers at the two ends are stripped, and the two ends are connected with the connector contact piece in a welded mode; s3, filling the connector tail cover with silicone rubber by adopting a primary glue filling process; s4, a metal shielding layer of the cable is scattered, pressed below a shielding pressing ring at the tail of the tail cover by 360 degrees and wound with a silver-plated copper wire for tinning and fixing treatment; s5, treating the joint of the mold shrinkage fork sleeve and the fluoroplastic outer sheath by adopting a sodium naphthalene solution activation process; s6, performing branch waterproofing on each cable by adopting a thermal shrinkage die shrinkage fork sleeve; s7, coating or potting polyurethane glue at the joint of the mold shrinkage fork sleeve and the cable, the joint of the mold shrinkage fork sleeve and the tail cover and the joint of the tail cover and the connector to further enhance the waterproofness; the waterproof performance of the cable assembly is improved.

Description

technical field [0001] The invention relates to the technical field of cable assemblies, in particular to a method for preparing a novel high-temperature-resistant and waterproof branch cable assembly. Background technique [0002] With the urgent need of national defense modernization in our country, various types of connectors, Electrical connectors are assembled into cables for electrical connection of equipment. Due to the huge system and narrow installation space, cable assemblies often adopt multi-branch form. The branch cable assembly can effectively improve the utilization rate of installation space, making the system develop towards miniaturization and light weight. However, due to the special use environment, the branch cable assembly needs to meet high temperature resistance and waterproof performance at the same time. Today's high temperature resistant cables usually use fluorine plastic sheathed cables. This type of fluorine plastic sheathed cable is difficult...

AI Technical Summary

Problems solved by technology

However, due to the special use environment, the branch cable assembly needs to meet high temperature resistance and waterproof performance at the same time. Today's high temperature resistant cables usually use fluorine plastic sheathed cables. This type of fluorine plastic sheathed cable is difficult to be corroded by most chemical reagents. It is also difficult to adhere firmly to most adhesives. If a fluoroplastic sheathed cable is used as a branch cable in the branch cable assembly, there is a risk that rainwater will penetrate into the connector from the gap on the surface of the fluoroplastic sheath

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