The white main material is applied to the extrusion of white insulation or sheath, and the insulation and sheath of other colors can be extruded after mixing the main material and color master batch in a ratio of 100:3.
In order to ensure the quality of products, it is strongly recommended that the main materials and color master batch should adopt the raw materials of our factory.
Melting temperature: 260℃
Screw diameter: 30mm
Extruder temperature (aspect ratio 25): 230℃, 250℃ and 265℃ in the third area of the fuselage; The two zones of the nose are 280℃ and 280℃
Selection standard of die sleeve: tensile coefficient 20-25
For example, for light insulated wires with conductor 19*0.2, the die core can have an aperture of 2mm, and the die sleeve can be selected between 5.5 and 5.8. It is suggested that tensile test should be carried out after extrusion, and the elongation at break should be ≥300%.
The temperature of each district can be fine-tuned according to the actual situation, and it can be plasticized well as a whole.
The radiation dose is recommended to be 20-25Mrad, and the first irradiation can be carried out at a high dose to meet the crosslinking degree and other performance requirements specified in the standard. Higher irradiation dose has limited influence on the properties of materials, so it is easy to realize the secondary irradiation of sheathed cables (the insulation and sheath of sheathed cables with braided shield can be irradiated with the same dose). The elongation after irradiation is 100%-150%, and the tensile strength is about 45Mpa.
1.70-1.72g/cm³
The main material 20KG aluminum foil is protected from light and packed in cartons
Color masterbatch is packed in 4 independent 5KG bags and cartons
The main materials and color masterbatch have been fully dried, so users do not need to dry any more.
(Packaging can be customized as required)
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