• English
  • 中文
News detailCurrent Location:Home > News > News detail

Application of heat shrinkable sleeve on ship

Time:2019/9/28 posted:Kehong Enterprises Co.,Ltd.

Modern ships are used in harsh environments for a long time, and the quality of the various electrical equipment on the ship is directly affected, which directly affects the reliable use of the equipment. The heat shrinkable sleeve process on the ship not only waterproofs, prevents steam, salt and other corrosion, but also eliminates stress, has excellent insulation, wear resistance and stress relief performance, and overcomes the commonly used DMT-J2. The plug-type sealing packing has poor detachability and poor forming effect of DFD-I type soft blocking material, and is easy to sag and sticky.

In order to ensure the successful application of the heat shrinkable sleeve process on the ship, it is necessary to carefully control the selection of the heat shrinkable sleeve, the handling of the cable heat shrinkable sleeve during construction, the heat shrinkable packaging of several typical joints, and the heating forming. To ensure the quality of construction.

The diameter of the heat-shrinkable sleeve should be selected according to the diameter of the cable, the filler culvert or the special plug and socket. The materials with different shrinkage ratios are generally selected, and the materials of 2.5, 1 and 3:1 are generally selected. The basic principle is that the diameter of the heat shrinkable tube before heating is greater than the diameter of the cable, and the minimum diameter that can be achieved after heating must be smaller than the diameter of the cable.

The diameter of the heat shrinkable sleeve cannot be selected too large or too small, otherwise the sealing and reinforcement effect cannot be achieved. When selecting the casing, pay attention to both thin and thick. Generally, when the heat shrinkable sleeve is installed on the cable root, the cable core branch port, the special plug, and the single filler culvert, the thick type can be selected; the whole core wire, the core wire terminal, or the special plug and socket can be installed. Thin tubing is available for the inner core wire and the connector (welding pin, pin).

The heat shrinkable sleeve will only shrink and fasten to the joint when heated to a certain temperature. When heating with a hot air gun, it must be uniformly heated around the circle. The distance is generally controlled at 30~50mm, and the heating temperature is controlled at 120~130°C. The hot air gun air outlet should not be too close to the material to be heated, otherwise the material will be burnt due to excessive temperature or local high temperature. Under normal operating conditions, when the casing is evenly and tightly wrapped around the cable, special plug, socket or filler culvert, the surface of the casing is smooth and bright, indicating that the heating shrinkage is completed. If the heat-shrinkable pipe has a hot-melt adhesive or a sealant for sealing, it is preferable to have a small amount of glue on the two ports when heating.

KeHong Enterprises Co.,Ltd.

E -mail:gavin@gzhelectric.com

Tel:+86-20-82586869, Mobile: +8615918777767









Pre:What is the factor of heat shrinkage time of heat shrinkable sleeve?
Next:Cold shrink cable terminal production process
Copyright © 2013-2020 Kehong Enterprises Co.,Ltd. All rights reserved