Radiation crosslinking granulator radiation crosslinking cable material granulator

Radiation crosslinking granulator radiation crosslinking polyethylene cable material granulator crosslinking radiation crosslinking can be used, chemical crosslinking and silane crosslinking three methods. Chemical cross-linking cable production methods have one-step, two-step two. Which is a direct one-step cross-linking agent is added to the PE particles, packaging, in the discharge line directly extruded cable; two-step method is first preparing a homogeneous polyethylene cable, then extruded from the cable plant, producing crosslinked cable. As many domestic cable manufacturing plant, so one-step, two-step method have better market cable materials. Second, the technology About the company in XLPE cable has 10 years of production history. Provides technology is mature formula used by the Company to provide one-step, two-step method to produce chemical crosslinked graft polyethylene cable production technology, in which two-step method is stable and reliable production of cable quality, size thickness line can be used; but equipment investment; investment in small one-step device, simple operation, but the product quality is not stable in two steps, generally used for the production of large thick line. First, the concept of cross-linking cables usually refers to the cable insulation using crosslinked material. The most commonly used material for the cross-linked polyethylene (XLPE). Cross-linking process is linear molecular structure of polyethylene (PE) material processed through a specific manner, to form cross-linked polyethylene mesh size fraction line structure. Making the long-term allowable working Hunchong increased from 700C to 900C (or higher), short-circuit allows temperature from 1400C up to 2500C (or higher), while maintaining its original premise excellent electrical performance, greatly increased the actual performance. Currently the cable industry XLPE cable production process is divided into three categories: chemical crosslinking peroxides, including saturated steam crosslinking, crosslinking inert gas, molten salt crosslinked silicone crosslinking the country are using the first That two dry chemical cross-linking; inert gas crosslinking ----- dry chemical cross-linking using peroxide compound crosslinking agent is added polyethylene insulation materials, completed by three co-extruded conductor shield - Insulation - extruded insulation shield continuously evenly through full temperature, high pressure nitrogen seal tube to complete the cross-linking cross-linking process. Heat transfer medium is nitrogen (an inert gas), cross-linked polyethylene excellent electrical performance, production range up to 500KV class. Silane chemical crosslinking - crosslinked using heated silane coupling agent added to the polyethylene insulation material, by extrusion. 1 + 2 is completed variant shield - insulating layer - extruded insulation shield, it will be cooled transfer to a plate of insulated core immersed 85-950C hot water for hydrolysis crosslinking effect due to the wet crosslinking the water content of the insulating layer. Usually only up to the maximum voltage 10KV. Irradiation cross-linked - through physical crosslinking using modified polyethylene insulation materials, by extrusion. 1 + 2 is completed variant shield - insulating layer - extruded insulation shield, the insulating cooled core, even complete the crosslinking process of irradiation by high energy electron accelerator scanning window. Irradiation cross-linked cable compound crosslinking agent is not added when crosslinked by high-energy electron accelerators produce high energy electron beam effectively penetrate the insulating layer, resulting in a crosslinking reaction by energy conversion, because the electron with high energy and uniformly through the insulating layer, so crosslinks to form a joint energy, good stability. Exhibit physical properties, heat resistance superior to chemical cross-linking cable. However, due to the energy level of the accelerator (usually no more than 3.0Mev electron beam effectively penetrate the thickness of 10mm or less, by the geometric factor, producing cable voltage rating can only reach 10KV, 6KV the following advantages.