阅读说明：本技术 一种0.6/1kv耐盐雾控制电缆及制作工艺 (0.6/1KV salt-fog-resistant control cable and manufacturing process ) 是由 朱从林 陆秀国 李正宝 杨金花 陆丛林 于 2020-07-17 设计创作，主要内容包括：本发明公开了一种0.6/1KV耐盐雾控制电缆及制作工艺,包括多根主线芯和加强芯,多根主线芯绕加强芯成圆周分布,多根主线芯外侧设有屏蔽层,屏蔽层外侧设有棉布层,棉布层外侧设有交联聚乙烯层,交联聚乙烯层外侧设有铠装层,铠装层外侧设有绝缘外护套层,绝缘外护套层外表面涂抹有油漆层；本发明结构简单,设计合理,在线缆中心采用加强芯,能够保证电缆在承受外界力的时候不会对线缆造成较大的损伤,通过交联型半导体屏蔽材料挤包成屏蔽层,屏蔽效果好,通过交联聚乙烯绝缘材料挤包成绝缘外护套层,并且在绝缘外护套层在涂抹防火耐腐蚀的油漆层,电缆耐盐雾效果好,能够避免盐雾对电缆的内部造成腐蚀。(The invention discloses a 0.6/1KV salt fog resistant control cable and a manufacturing process thereof, and the cable comprises a plurality of main wire cores and a reinforcing core, wherein the main wire cores are distributed around the reinforcing core in a circumferential manner, shielding layers are arranged outside the main wire cores, cotton cloth layers are arranged outside the shielding layers, crosslinked polyethylene layers are arranged outside the cotton cloth layers, armor layers are arranged outside the crosslinked polyethylene layers, insulating outer sheath layers are arranged outside the armor layers, and paint layers are coated on the outer surfaces of the insulating outer sheath layers; the cable is simple in structure and reasonable in design, the reinforcing core is adopted in the center of the cable, the cable can be prevented from being greatly damaged when the cable bears external force, the shielding layer is formed by extruding crosslinked semiconductor shielding materials, the shielding effect is good, the insulating outer sheath layer is formed by extruding crosslinked polyethylene insulating materials, the fireproof and corrosion-resistant paint layer is coated on the insulating outer sheath layer, the salt mist resistant effect of the cable is good, and salt mist can be prevented from corroding the inside of the cable.)

1. The utility model provides a 0.6/1KV resists salt fog control cable, includes many main line core (1) and strengthens core (2), its characterized in that: many the thread core (1) becomes the circumference around strengthening core (2) and distributes, many the thread core (1) outside is equipped with shielding layer (3), shielding layer (3) outside is equipped with cotton layer (4), cotton layer (4) outside is equipped with crosslinked polyethylene layer (5), crosslinked polyethylene layer (5) outside is equipped with armor (6), armor (6) outside is equipped with insulating oversheath layer (7), paint layer (8) has been paintd to insulating oversheath layer (7) surface.

2. The 0.6/1KV salt-fog-resistant control cable according to claim 1, wherein: the main line core (1) comprises a metal conductor (101), a soft protective layer (102) is arranged on the outer side of the metal conductor (101), a buffer layer (103) is arranged on the outer side of the soft protective layer (102), a polyethylene insulating layer (104) is arranged on the outer side of the buffer layer (103), and the polyethylene insulating layer (104) is in contact with a shielding layer (3) and a reinforcing core (2).

3. The 0.6/1KV salt-fog-resistant control cable according to claim 2, wherein: the metal conductor (101) is formed by stranding a plurality of copper wires.

4. The 0.6/1KV salt-fog-resistant control cable according to claim 1, wherein: the main wire cores (1) are provided with six groups, and the six groups of main wire cores (1) are uniformly distributed around the reinforcing core (2).

5. The 0.6/1KV salt-fog-resistant control cable according to claim 1, wherein: the reinforced core (2) comprises a steel strand (201), a polystyrene belting layer (202) is arranged on the outer side of the steel strand (201), a rubber separation layer (203) is arranged on the outer side of the polystyrene belting layer (202), and the rubber separation layer (203) is in contact with the main wire core (1).

6. The 0.6/1KV salt-fog-resistant control cable according to claim 1, wherein: the shielding layer (3) is formed by extruding and wrapping a cross-linking type semiconductor shielding material.

7. The 0.6/1KV salt-fog-resistant control cable according to claim 1, wherein: the paint layer (8) is formed by smearing fireproof and corrosion-resistant paint.

8. The 0.6/1KV salt-fog-resistant control cable according to claim 1, wherein: the armor layer (6) is formed by weaving tinned aluminum alloy wires, and the weaving density of the armor layer (6) is not less than 90%.

9. The 0.6/1KV salt-fog-resistant control cable according to claim 1, wherein: the insulating outer sheath layer (7) is formed by extruding and wrapping a crosslinked polyethylene insulating material.

10. A manufacturing process of a 0.6/1KV salt-fog-resistant control cable is characterized by comprising the following steps: the method comprises the following steps:

s1, selecting a plurality of copper wires, and stranding the copper wires through a stranding machine to obtain a plurality of metal conductors (101);

s2, selecting a plurality of steel wires, and stranding the steel wires through a stranding machine to obtain a steel strand (201);

s3, sequentially wrapping a soft protective layer (102), a buffer layer (103) and a polyethylene insulating layer (104) on a metal conductor (101) to obtain a main wire core (1);

s4, sequentially wrapping a polystyrene wrapping layer (202) and a rubber separation layer (203) on the steel strand (201) to obtain a reinforced core (2);

s5, distributing the six main wire cores (1) around the reinforced core (2), and then extruding the shielding layer (3) by an extruding machine;

s6, wrapping a cotton cloth layer (4) on the outer side of the shielding layer (3), and then extruding and wrapping a crosslinked polyethylene layer (5) on the outer side of the cotton cloth layer (4) through an extruding machine;

s7, weaving an armor layer (6) on the outer side of the cross-linked polyethylene layer (5) through tinned aluminum alloy wires, wherein the weaving density of the armor layer (6) is 94%;

s8, extruding and wrapping the insulating outer sheath layer (7) on the outer side of the armor layer (6) through an extruding machine, and finally coating an oil paint layer (8) on the insulating outer sheath layer (7) to obtain the cable.

Technical Field

The invention relates to the technical field of cables, in particular to a salt spray resistant control cable and a manufacturing process thereof.

Background

The cable is a wire which is made of one or more mutually insulated conductors and an outer insulating protective layer and transmits power or information from one place to another place; typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

The electric wire cable is mostly erected outdoors, and in areas with serious salt fog or dirt, because the salt content in the air is large, the traditional overhead insulated cable insulating layer is easy to be corroded by the salt fog, and the problem of conductor disconnection is caused in the past for a long time, so that the use of the cable is greatly influenced.

Based on the above, the invention designs a 0.6/1KV salt-fog-resistant control cable and a manufacturing process thereof, so as to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a 0.6/1KV salt mist resistant control cable and a manufacturing process thereof, the cable is simple in structure and reasonable in design, a reinforcing core is adopted in the center of the cable, the cable can be prevented from being greatly damaged when bearing external force, a shielding layer is extruded by a cross-linked semiconductor shielding material, the shielding effect is good, an insulating outer sheath layer is extruded by a cross-linked polyethylene insulating material, a fireproof and corrosion-resistant paint layer is coated on the insulating outer sheath layer, the salt mist resistant effect of the cable is good, and the salt mist can be prevented from corroding the inside of the cable, so that the problems in the background technology are solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a 0.6/1KV salt fog resistant control cable, includes many principal cores and enhancement core, many the principal core becomes the circumference distribution around strengthening the core, many the principal core outside is equipped with the shielding layer, the shielding layer outside is equipped with the cotton layer, the cotton layer outside is equipped with the crosslinked polyethylene layer, the crosslinked polyethylene layer outside is equipped with the armor, the armor outside is equipped with insulating oversheath layer, paint layer has been paintd to insulating oversheath layer surface.

Preferably, the main line core includes metal conductor, the metal conductor outside is equipped with soft protective layer, the soft protective layer outside is equipped with the buffer layer, the buffer layer outside is equipped with the polyethylene insulating layer, the polyethylene insulating layer contacts with shielding layer and reinforcement core.

Preferably, the metal conductor is formed by twisting a plurality of copper wires.

Preferably, the main wire cores are provided with six groups, and the six groups of main wire cores are uniformly distributed around the reinforcing core.

Preferably, the reinforcing core comprises a steel strand, a polystyrene belting layer is arranged on the outer side of the steel strand, a rubber separation layer is arranged on the outer side of the polystyrene belting layer, and the rubber separation layer is in contact with the main wire core.

Preferably, the shielding layer is formed by extruding a cross-linking type semiconductor shielding material.

Preferably, the paint layer is formed by painting fireproof and corrosion-resistant paint.

Preferably, the armor layer is formed by weaving tin-plated aluminum alloy wires, and the weaving density of the armor layer is not less than 90%.

Preferably, the insulating outer sheath layer is formed by extruding a crosslinked polyethylene insulating material.

A manufacturing process of a 0.6/1KV salt-fog-resistant control cable comprises the following steps:

s1, selecting a plurality of copper wires, and stranding the copper wires through a stranding machine to obtain a plurality of metal conductors;

s2, selecting a plurality of steel wires, and stranding the steel wires through a stranding machine to obtain a steel strand;

s3, sequentially wrapping the metal conductor with a soft protective layer, a buffer layer and a polyethylene insulating layer to obtain a main wire core;

s4, sequentially wrapping a polystyrene belting layer and a rubber separation layer on the steel strand to obtain a reinforced core;

s5, distributing the six main wire cores around the reinforced core, and then extruding and wrapping the shielding layer by an extruding machine;

s6, wrapping a cotton cloth layer outside the shielding layer, and then extruding a crosslinked polyethylene layer outside the cotton cloth layer by an extruding machine;

s7, weaving an armor layer on the outer side of the cross-linked polyethylene layer through tinned aluminum alloy wires, wherein the weaving density of the armor layer is 94%;

and S8, extruding and wrapping the outer side of the armor layer with an insulating outer sheath layer through an extruding machine, and finally coating an oil paint layer on the insulating outer sheath layer to obtain the cable.

Compared with the prior art, the invention has the beneficial effects that:

1. the cable is simple in structure and reasonable in design, the reinforcing core is adopted in the center of the cable, the cable can be prevented from being greatly damaged when the cable bears external force, the shielding layer is formed by extruding crosslinked semiconductor shielding materials, the shielding effect is good, the insulating outer sheath layer is formed by extruding crosslinked polyethylene insulating materials, the fireproof and corrosion-resistant paint layer is coated on the insulating outer sheath layer, the salt mist resistant effect of the cable is good, and salt mist can be prevented from corroding the inside of the cable.

2. According to the invention, the soft protective layer, the buffer layer and the polyethylene insulating layer are arranged on the outer side of the metal conductor, so that the metal conductor can be protected, the metal conductor is prevented from being damaged, the mutual insulation between the metal conductors can be ensured, the safety is high, and the cable is convenient to use.

3. According to the invention, the polystyrene band layer and the rubber separation layer are sequentially wrapped on the steel strand to obtain the reinforcing core, the tensile capacity of the reinforcing core is good, the cable can be prevented from being broken under the action of external force, the service life of the cable is long, the polystyrene band layer and the rubber separation layer ensure that the steel strand and the metal conductor are mutually insulated, the short circuit is prevented, and the use is very convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a main core structure according to the present invention;

FIG. 3 is a schematic view of a core-stiffened structure according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.