(1) The roving for jetting is suitable for the roving of FRP injection molding. It has the following properties: 1 good cutting property, less static electricity generated during continuous high-speed cutting; 2 roving without roving after being cut into raw yarn The efficiency is high, that is, the beam splitting rate is high, usually requires more than 90%; 3 the chopped strands have excellent overmolding property and can cover all corners of the mold; 4 resin soaks quickly and is easily flattened by the roller rolls Easy to drive air bubbles; 5 original wire tube has good decomposing performance, uniform density of coarse yarn, suitable for all kinds of spray guns and fiber delivery systems. The roving for jetting is made up of a plurality of raw yarns, each of which contains 200 glass monofilaments.
(2) SMC roving roving SMC is a sheet molding compound, which is mainly used for pressing automobile parts, bathtubs, water tank plates, septic tanks, various seats, and the like. SMC uses roving to cut Sin sheet into lin (25mm) length and disperse it in resin paste. Therefore, the requirement for SMC roving is good short cut, less wool and excellent antistatic property. The chopped strand does not stick to the knife roll during cutting. For colored SMC, the roving is to be impregnated with resin in a high pigment content resin paste. Usually SMC roving is generally 2400 tex, and in some cases 4800 tex is also useful.
