Harness processing manufacturers in the choice of wire harness on the use of those insulated wire harness? And what is the requirement for wire harness processing for wire harness insulation? Want to solve your doubts, want to know more, do not imitate Xiaobian together to understand the knowledge, look at the wiring harness in the PVC, PE, PP, XLPE, PU, TPE insulation material performance and scope of use.
PVC (PVC line is 1007 \ 1015 \ 1061,1430,1571) - PVC (PVC) plastic is based on polyvinyl chloride resin-based multi-component mixture, according to the requirements of a variety of wire and cable, In the PVC formula with a plasticizer, stabilizer, fillers, flame retardants, processing aids (lubricants), UV absorbers, colorants and special-purpose additives and other substances, mainly for insulation and sheath (mainly 70,80,90,105 degrees four temperature levels). Basic determination method: burning, yellow flame, black smoke, the bottom of the flame was green, stench.
PE (our commonly used 3266 \ 3385) - Polyethylene has excellent electrical insulation (dielectric constant and dielectric loss tangent tgδ are very small), good chemical stability, low permeability and smaller water absorption Nature, small proportion, non-toxic, and a good plastic, easy processing and molding. Mainly used for communication cable insulation. The basic method of determination: the surface comparison light , burning, the flame on the blue under the blue, dripping, with a slight candle flavor.
PP - polypropylene appearance of white waxy solid, more transparent, non-toxic, water absorption is small, only 0.03-0.04%, combustible. The proportion of 0.91, is currently the smallest of a commonly used plastic. Mainly used for core insulation. The basic method of determination: the surface is relatively smooth, and PE than the hard, burning, the flame on the blue under the blue, dripping, there are shares of smell, after a slight candle flavor.
XLPE / XL-PVC - thermosetting materials, mainly used for insulation, XLPE maximum temperature level up to 150 degrees. Basic identification method: cut a section of wire to remove the conductor, with the fire from the middle began to burn, and then forced to pull off the line, the section is very rounded.
PU - has a very good physical and chemical properties, commonly used in construction machinery and other equipment cable and spring wire jacket. Basic identification method: with magnetic, good elasticity of the expansion of combustion and mixed with dripping.
TPE / PO (thermoplastic elastomer) - low smoke zero halogen flame retardant.