Radiation cross-linking granulator, radiation cross-linking cable material granulator, granulator

Radiation cross-linking granulator
Radiation cross-linking cable material granulator
manufacturers, both one-step and two-step cable materials have a good market.
Two technical introduction
Our company has many years of production history in cross-linked polyethylene cable materials. The technology provided is a mature formula used by our company. It can provide two production technologies for the production of chemically cross-linked grafted polyethylene cable materials, one-step and two-step. Among them, the quality of the cable material produced by the two-step method is stable and reliable, with large and small thickness. Both can be used, but the equipment investment is large. The one-step method has small equipment investment and simple operation, but the product quality is not as stable as the two-step method. It is generally used for the production of large and thick lines.
One Concept
Cross-linked cable usually means that the insulation layer of the cable is made of cross-linked materials. The most commonly used material is cross-linked polyethylene. The cross-linking process is to process the polyethylene material with a linear molecular structure through a specific processing method to form a cross-linked polyethylene with a network-like branching structure. The long-term allowable working mixed charging is increased to or higher, and the short-circuit allowable temperature is increased from to or higher. On the premise of maintaining its original excellent electrical performance, the actual performance is greatly improved. At present, the technology for producing cross-linked cables in the cable industry is divided into three categories. The first type is peroxide chemical cross-linking, including saturated vapor cross-linking, inert gas cross-linking, molten salt cross-linking, silicone oil cross-linking, and the second type, namely dry Method chemical cross-linking Inert gas cross-linking - dry chemical cross-linking uses polyethylene insulation material added with peroxy compound cross-linking agent, and completes the extrusion of the conductor shielding layer - insulation layer - insulation shielding layer through three-layer co-extrusion Finally, the cross-linking process is completed continuously and evenly through a sealed cross-linking tube filled with high-temperature and high-pressure nitrogen. The heat transfer medium is nitrogen inert gas cross-linked polyethylene with excellent electrical properties and a production range up to grade. Silane chemical cross-linking - warm water cross-linking uses polyethylene insulation material added with silane cross-linking agent. After extrusion of the foreign shielding layer - insulation layer - insulation shielding layer, the cooled and plated The insulated wire core is immersed in hot water for hydrolysis and cross-linking, because wet cross-linking will affect the water content in the insulation layer. Generally the highest voltage level is only up to. Irradiation cross-linking - physical cross-linking uses modified polyethylene insulation material. After extrusion of the alien shielding layer - insulation layer - insulating shielding layer, the cooled insulated wire core is The cross-linking process is completed uniformly through the radiation scanning window of the high-energy electron accelerator. There is no cross-linking agent added to the radiation cross-linked cable material. During cross-linking, the high-energy electron beam generated by the high-energy electron accelerator effectively penetrates the insulation layer and produces a cross-linking reaction through energy conversion, because the electrons have high energy. , and evenly passes through the insulating layer, so the cross-linked bonds formed have high binding energy and good stability. The physical properties displayed are that the heat resistance is better than that of chemically cross-linked cables. However, due to the limitation of the accelerator energy level, the effective penetration thickness of the sub-beam is generally not more than 0. Considering the geometric factors, the voltage level of the production cable can only reach the following, and the advantages are as follows.