High-intensity, waterproof and anti-corrosion cable sheath
A cable sheathing, corrosion-resistant technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of limitation, low strength, poor asphalt adhesion, etc., and achieve the effect of light weight and low cost
Active Publication Date: 2013-04-24
QINGDAO HANHE CABLE +1
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Problems solved by technology
Lead sheath and armored steel wire are generally coated with asphalt to prevent corrosion in order to prevent oxidation and corrosion. Due to the poor adhesion and low strength of the asphalt, the cable is easily scratched during production and transportation, which reduces the corrosion resistance of the cable. At the same time, cable asphalt is used, the production environment and cable laying environment are poor, and the surrounding environment will be polluted to varying degrees after laying, and it is subject to certain restrictions in places with high environmental requirements.
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[0014] The cable sheath of the present invention includes a composite tape 2 wrapped outside the cable core 1, the outside of the composite tape 2 is wrapped with a sheath layer 4, and the steel wire 3 is preset in the sheath layer 4.
[0015] The steel wire 3 adopts an inner and outer two-layer structure, and the composite tape 2 and the sheath layer 4 are fused and bonded into one. The sheath layer 4 is made of high-density polyethylene. The composite tape 2 is covered longitudinally on the cable core 1, and the covered part is bonded with hot melt adhesive.
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The invention relates to the cable manufacture technology, in particular to a waterproof and anti-corrosion cable sheath. The high-intensity, waterproof and anti-corrosion cable sheath comprises a compound band wrapping the outer side of a cable core; a sheath layer wraps the outer side of the compound band; and steel wires are pre-embedded inside the sheath layer. The cable sheath is low in cost, light in weight, free from pollution and good in anti-corrosion property, can replace the conventional high-intensity, waterproof and anti-corrosion cable sheath, and is applied to submarine cables,cables which pass through rivers and lakes, and various cables with requirements on high intensity and anti-corrosion property.
Description
technical field [0001] The invention relates to a cable manufacturing technology, in particular to a waterproof and corrosion-resistant cable sheath. Background technique [0002] Cables laid underwater, such as submarine cables, underwater cables crossing rivers and lakes, are required to withstand greater mechanical tension than ordinary cables during laying. After laying, in order to prevent anchoring and mechanical damage to fishing gear, the cables are required to have With high mechanical protection and corrosion resistance, this type of cable is usually waterproofed with an independent metal sheath (lead sheath), and strengthened with an independent single-layer or double-layer steel wire armor. Lead sheath and armored steel wire are generally coated with asphalt to prevent corrosion in order to prevent oxidation and corrosion. Due to the poor adhesion and low strength of the asphalt, the cable is easily scratched during production and transportation, which reduces th...
Claims
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IPC IPC(8): H01B7/282H01B7/22
Inventor 陈沛云
Owner QINGDAO HANHE CABLE