Unlock instant, AI-driven research and patent intelligence for your innovation.

High-strength cable sheath and preparation method thereof

A cable sheath, high-strength technology, applied in the field of high-strength cable sheath and its preparation, can solve problems such as increased shrinkage, slippage, and bubbles

Inactive Publication Date: 2020-02-11
WUHU HANGTIAN SPECIAL CABLE FACTORY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, we have found through practical verification of the existing formula that in order to make the appearance of the cable sheath meet the requirements, it is often necessary to increase the temperature of the extruder during the preparation process. However, because the extrusion temperature is too high, the plastic is easy to burn , or the phenomenon of "slipping". In addition, the shape stability of the extruded cladding layer is poor, the shrinkage rate increases, and it may even cause discoloration and bubbles in the extruded plastic layer.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The present invention also provides a method for preparing the above-mentioned high-strength cable sheath, comprising: by weight, 90-110 parts of cross-linked polyethylene, 8-12 parts of composite lubricant, 4-12 parts of composite heat stabilizer 6 parts, 0.1-0.3 parts of antioxidant 1010, 0.1-0.3 parts of antioxidant 168, 6-8 parts of linear low density polyethylene powder and 2-4 parts of bentonite, then extruded in the extruder steps out.

[0019] In a preferred embodiment of the present invention, it includes mixing cross-linked polyethylene and linear low-density polyethylene powder in a high-speed mixer until the temperature reaches 75°C-85°C, and then adding a composite heat stabilizer to continue mixing until the temperature reaches 75°C-85°C. When the temperature reaches 88°C-92°C, then sequentially add compound lubricant, bentonite, antioxidant 1010 and antioxidant 168 and continue mixing in a high-speed mixer until the temperature reaches 105°C-120°C, and th...

Embodiment 1

[0024] Preparation method of high-strength cable sheath:

[0025] The formula is: in parts by weight, 90 parts of cross-linked polyethylene, 8 parts of composite lubricant, 4 parts of composite heat stabilizer, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168, linear low density polyethylene The powder is 6 parts and 2 parts of bentonite; the composite lubricant is composed of calcium stearate, polyethylene wax and ultra-high molecular weight polysiloxane in a weight ratio of 1:1:1; the composite heat stabilizer is composed of mercaptan methyl The tin and the calcium / zinc composite stabilizer are composed in a weight ratio of 4:1.

[0026] Mix cross-linked polyethylene and linear low density polyethylene powder in a high-speed mixer until the temperature reaches 85°C, then add a composite heat stabilizer and continue mixing until the temperature reaches 92°C, then add compound lubricant, bentonite, antioxidant Additive 1010 and antioxidant 168 were mixed in a high-sp...

Embodiment 2

[0030] Preparation method of high-strength cable sheath:

[0031] The formula is: by weight, 110 parts of cross-linked polyethylene, 12 parts of compound lubricant, 6 parts of compound heat stabilizer, 0.3 part of antioxidant 1010, 0.3 part of antioxidant 168, linear low density polyethylene Powder is 8 parts and bentonite 4 parts. The composite lubricant is composed of calcium stearate, polyethylene wax and ultra-high molecular weight polysiloxane in a weight ratio of 1:2:3; the composite heat stabilizer is composed of mercaptan methyl tin and calcium / zinc composite stabilizer according to the ratio of : 1 weight ratio composition.

[0032] Mix cross-linked polyethylene and linear low density polyethylene powder in a high-speed mixer until the temperature reaches 75°C, then add a composite heat stabilizer and continue mixing until the temperature reaches 88°C, then add compound lubricant, bentonite, antioxidant Additive 1010 and antioxidant 168 were mixed in a high-speed mi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-strength cable sheath and a preparation method thereof. The high-strength cable sheath comprises the following components by mass: 90-110 parts of cross-linked polyethylene, 8-12 parts of a composite lubricant, 4-6 parts of a composite heat stabilizer, 0.1-0.3 parts of an antioxidant 1010, 0.1-0.3 parts of an antioxidant 168, 6-8 parts of linear low-density polyethylene powder and 2-4 parts of bentonite. The obtained sheath has round appearance, uniform gloss, no core shift (not exceeding a specified deviation), no mechanical damage or flattening, no visible sundries, bubbles, sand holes, or obvious particles, bamboo joint shape, twist shape, etc. At the same time, in the preparation process, plastic cannot be scorched or slip, in addition, an extruded layerhas strong shape stability and controllable shrinkage, and does not cause discoloration and bubbles in the extruded plastic layer. And the cable sheath provided by the invention has high mechanical strength.

Description

technical field [0001] The invention relates to a cable sheath, in particular to a high-strength cable sheath and a preparation method thereof. Background technique [0002] The sheathed wire is a kind of wire, commonly used are power cables, communication cables and optical cables. The sheathed wire is extruded (winded) around the conductor with an insulating layer, such as an overhead insulated cable, or a few cores twisted (corresponding to the phase wire, neutral wire and ground wire of the power system), such as an overhead insulated cable with more than two cores, or re-wired Increase the sheath layer, such as plastic / rubber sheathed wire and cable. It is mainly used for the transmission of strong electric energy in the transmission, distribution, transmission, transformation, and power supply lines. The passing current is large (tens of amps to thousands of amps), and the voltage is high (220V to 500kV and above). [0003] The main function of the cable sheath is to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L23/26C08L23/08C08K13/02C08K3/34
CPCC08L23/26C08L2023/44C08L2203/202C08L2205/035C08L23/0815C08K13/02C08K3/346
Inventor 米春海陶凯石慧陶征洁
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY