阅读说明：本技术 一种耐低温高预应力电缆 (Low-temperature-resistant high-prestress cable ) 是由 唐世刚 魏勇 曾令果 冯治钦 谭文礼 于 2020-06-17 设计创作，主要内容包括：本发明公开了一种耐低温高预应力电缆,包括线芯,其特征在于：所述线芯的外侧包覆有包芯层,所述包芯层的外侧包覆有阻水层,所述阻水层的外侧包覆有橡胶内层,所述橡胶内层的外侧包覆有第一编织层,所述第一编织层的外侧包覆有屏蔽层,所述屏蔽层的外侧包覆有橡胶中层,所述橡胶中层的外侧包覆有第二编织层,所述第二编织层的外侧包覆有橡胶外层。本发明耐低温高预应力电缆具有可以在低温环境中保持不破裂以及抗拉扯强度高的优点。(The invention discloses a low-temperature-resistant high-prestress cable, which comprises a wire core and is characterized in that: the outside cladding of sinle silk has the covering layer, the outside cladding of covering layer has the water blocking layer, the outside cladding of water blocking layer has the rubber inlayer, the outside cladding of rubber inlayer has first weaving layer, the outside cladding of first weaving layer has the shielding layer, the outside cladding of shielding layer has the rubber middle level, the medial outside cladding of rubber has the second weaving layer, the outside cladding of second weaving layer has the rubber skin. The low-temperature-resistant high-prestress cable has the advantages of no fracture and high tensile strength in a low-temperature environment.)

1. The utility model provides a low temperature resistant high prestressing force cable, includes the sinle silk, its characterized in that: the outside cladding of sinle silk has the covering layer, the outside cladding of covering layer has the water blocking layer, the outside cladding of water blocking layer has the rubber inlayer, the outside cladding of rubber inlayer has first weaving layer, the outside cladding of first weaving layer has the shielding layer, the outside cladding of shielding layer has the rubber middle level, the medial outside cladding of rubber has the second weaving layer, the outside cladding of second weaving layer has the rubber skin.

2. The low temperature resistant high pre-stressed cable of claim 1, wherein: the quantity of sinle silk is three, three the outside of sinle silk all the cladding has the covering layer, the covering layer is formed by the polyethylene film area around the package.

3. The low temperature resistant high pre-stressed cable of claim 1, wherein: the water-resistant layer is filled with water-resistant paste.

4. The low temperature resistant high pre-stressed cable of claim 1, wherein: the rubber inner layer is made of ethylene propylene diene monomer rubber material, and the thickness of the rubber inner layer is 1.5 mm.

5. The low temperature resistant high pre-stressed cable of claim 1, wherein: the first weaving layer is woven by the aramid fiber line and is formed, and the weaving angle is 85 degrees.

6. The low temperature resistant high pre-stressed cable of claim 1, wherein: the shielding layer is made of an aluminum foil material, and the thickness of the shielding layer is 0.5 mm.

7. The low temperature resistant high pre-stressed cable of claim 1, wherein: the rubber middle layer is made of a nitrile rubber material, and the thickness of the rubber middle layer is 1.5 mm.

8. The low temperature resistant high pre-stressed cable of claim 1, wherein: the second weaving layer is formed by weaving nylon wires, and the weaving angle is 90 degrees.

9. The low temperature resistant high pre-stressed cable of claim 1, wherein: the rubber outer layer comprises the following raw materials in parts by weight: 20-30 parts of polyurethane rubber, 60-80 parts of silicone rubber, 20-30 parts of ethylene propylene rubber, 5-10 parts of cold-resistant plasticizer, 5-8 parts of calcium-zinc composite stabilizer, 1-2 parts of antioxidant, 1-2 parts of anti-aging agent, 3-5 parts of vulcanizing agent, 10-15 parts of white carbon black, 1-2 parts of paraffin and 2-4 parts of nano zinc oxide.

10. The low temperature resistant high pre-stressed cable of claim 9, wherein: the mass of the cold-resistant plasticizer accounts for not less than 5% of the total amount of the raw materials.

Technical Field

The invention belongs to the field of cables, and particularly relates to a low-temperature-resistant high-prestress cable.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation. Wire and cable products are mostly products having the same shape (cross section) in section (regardless of manufacturing errors) and being long-sized, because of the characteristics used as a constituent wire or coil in a system or apparatus. The structural composition of the cable product is studied and analyzed, and the analysis is observed only from the cross section thereof.

The existing cable is generally of a multilayer structure, however, in some severe environments, such as an environment of minus 40 degrees, a part of the cable may have a surface fracture phenomenon, and in the laying process of the cable, high-strength dragging may be required, so that the requirement on the anti-pulling performance of the cable is high, and the dragging requirement of a part of the cable is difficult to meet.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a low-temperature-resistant high-prestress cable which can keep no fracture and has high tensile strength in a low-temperature environment.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a low temperature resistant high prestressing force cable, includes the sinle silk, its characterized in that: the outside cladding of sinle silk has the covering layer, the outside cladding of covering layer has the water blocking layer, the outside cladding of water blocking layer has the rubber inlayer, the outside cladding of rubber inlayer has first weaving layer, the outside cladding of first weaving layer has the shielding layer, the outside cladding of shielding layer has the rubber middle level, the medial outside cladding of rubber has the second weaving layer, the outside cladding of second weaving layer has the rubber skin.

Compared with the prior art, the low-temperature-resistant high-prestress cable has the advantages that:

1. the low temperature resistance is good, and the surface can be kept from cracking in an environment of minus 40 ℃.

The outer layer of rubber is designed on the outermost layer of the cable, and the outer layer of rubber is composed of polyurethane rubber, silicon rubber, ethylene propylene rubber, a cold-resistant plasticizer, a calcium-zinc composite stabilizer, an antioxidant, an anti-aging agent, a vulcanizing agent, white carbon black, paraffin and nano zinc oxide, so that a low-temperature-resistant rubber layer can be formed to protect the cable, the cable can be normally used in an ultralow-temperature environment, the surface of the cable is free from fracture damage, and the reliability of the cable is guaranteed.

2. Good anti-pulling performance and difficult pulling and cracking.

Through design first weaving layer and second weaving layer as the enhancement layer of cable on the cable for first weaving layer and second weaving layer and adjacent layer between the bonding closely, in the use, be difficult for because drag and cause the cable to take place delaminating fracture phenomenon, make the engineering performance of cable better.

3. Good peeling resistance and difficult delamination.

Through design rubber inlayer, rubber middle level and rubber skin on the cable for it is inseparable to laminate through rubber materials between each layer, with each weaving layer zonulae occludens, makes the adhesion great, and outermost rubber is difficult for taking place the layering phenomenon, and especially the rubber skin is difficult for the layering, good reliability.

Drawings

Fig. 1 is a schematic structural diagram of a low-temperature-resistant high-prestress cable.

Labeled as: 1. a wire core; 2. a core-spun layer; 3. a water resistant layer; 4. an inner rubber layer; 5. a first woven layer; 6. a shielding layer; 7. a rubber middle layer; 8. a second woven layer; 9. and a rubber outer layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.