LFT mould - composite mould
LFT stands for Long Fiber Reinforced Thermoplastic Composite Material, English is Long Fiber Reinforced Thermoplastics. It is compared with ordinary fiber reinforced thermoplastic materials. Normally, the fiber length in fiber reinforced thermoplastic materials is less than 1 mm, while in LFT , The length of the fiber is generally greater than 2 mm, the current processing technology has been able to maintain the length of the fiber in the LFT above 5 mm.
At present, LFT is classified by process, mainly including the following three types: GMT, LFT-D and LFT-G. These three processes continue to increase the length of the fiber in the plastic to further increase the strength of the product is the ultimate goal; at the same time, the production cost (equipment and efficiency, etc.) must be considered comprehensively. The manufacturing process of LFT's products is very similar to that of SMC, which is made by pressing sheets in a mold. SMC is formed by hot pressing after the cold soft sheet is put into the mold, while LFT is the hard sheet is heated and softened and then cold pressed in the mold.
In the automotive industry, long-fiber-reinforced thermoplastics are the future of lightweight, and LFT-D and LFT-G are the fastest-growing; among them, LFT-G is suitable for injection molding, and has advantages in the geometric complexity of the final product and mass production. Relative advantage. The main advantages of LFT materials are attractive cost/performance ratio and relatively low density. They are mainly used to make structural and semi-structural components, such as engine covers, instrument panel frames, battery brackets, spare tire compartments, seat frames, foot pedals, and overall floor panels.