Comparison of 3 Cross-Linking Processes for Cross-Linked Cables

Immediately in the immediate future of electrical and industrial production
Noble gas cross-linking, melting gas cross-linking, cross-linking cross-linking, domestic leveling type 2 instant-drying chemical cross-linking; class 2 cross-linking chemical cross-linking; class 3 cross-linking cross-linking. Type 1 chemical cross-linking, cross-linking cross-linking function mother particle application method
Immediately, cross-linking power matrix particles for cross-linking, existing ordinary cross-linking power particles, small amount of this power-carrying power particles, and immediate power-linking power.

1. Chemical crosslinking
The DCP cross-linking production line adopts catenary or tower equipment, and the equipment and plant cost are high, and it needs to consume a lot of water, electricity, gas, etc., so the investment is relatively large; because the production line is longer, it is only suitable for the production of large length cables; High environmental requirements require specialized production workshops.
2. Silane crosslinking
The silane crosslinking production line only needs ordinary extruder and heating device (hot pool or steam chamber), low investment, low environmental requirements, flexible production, suitable for the production of long or short cables, and can be manufactured in different lengths according to customer needs power Cables.
3. Irradiation cross-linking, irradiation cross-linking is to use the high-energy electron beam generated by the electron accelerator to bombard the insulating layer and the sheath, and break the polymer chain of the linear molecular structure of polyethylene (PE) material cable . Every breakpoint becomes a free radical. Free radicals are unstable and must be recombined with each other. After recombination, the original chain molecular structure becomes a three-dimensional network molecular structure to form crosslinks. In addition, the radiation dose applied in the production process of radiation cross-linking leaves a large safety margin from the destruction dose. The radiation damage dose of polyethylene is 1000KGY, and the processing dose is about 200KGY. In addition to the improvement of the special formula, it is still cross-linked by radiation in a relatively wide range, so its performance will be affected by radiation during a long period of early use.

1. Chemical cross-linking
Cross-linking method: 100 US conduit or standing tower high pressure system, high temperature, water-cooled cross-linking
Crosslink: High
Favorable area: Suitable ultra-high or high pressure electric power 10-110Kv
Main advantages: 1. Cross-linking, cross-linking, cross-linking, cross-linking, cross-linking;
2. Production equipment and production craft maturity
Main problem: Incompatible small cross section, thin insulation;
Chemical residue;
2. Spokes
Crosslink method: Collection / release line, electronic bundle physical crosslink
Crosslink: Low
Fluorine area: Medium-low pressure system, special equipment line, flame retardant line, cross-linking PVC insualted cable , PP, cross-linked product, etc.
Main advantages: 1. Production and engineering crafts, available original equipment, cross-linking available
2. High-performance materials such as various types of processed materials, temperature resistance, and flame retardancy
Main problem: Incompatibility 10kV or more Electric wire
Partial large-line irradiation device Existence problem, irradiation equality difference;

3. Crosslink
Cross-linking method: Cross-linking, warm water immersion or steam fumigation 8 hours or more cross-linking;
Crosslink: Crosslink
Favorable area: Medium-low pressure system, building line, ordinary waiting, etc.
Main advantages: Industrial and industrial crafts, available original equipment;
Single production production low;
Main problems: production and production control, product quality instability
Low production efficiency