●Place of Origin:Fujian, China (Mainland)
●Brand Name:JULIER ●Shaping Mode:plastic mouldings for LFRT materials ●Product Material: All kinds of Plastic raw material
plastic mouldings for LFRT materials
PA66/PA6/PP/PBT/PPS/TPU with long glass/carbon fiber
ISO9001, SGS, CTI, ROHS
LKM Mould Base
LFT is less fluid than pure plastic. It is advisable to use larger gates and runners, and point gates should be better avoided, otherwise the glass fiber will be seriously damaged, and the length of fiber in the product will be reduced. Finally may affect the strength of the product. In the process of filling the mold cavity during plastic mouldings for LFRT materials, the front of the melt is mainly plastic melt, so there are few fibers in the weld mark of the product, so that the strength there is relatively low. Therefore, the number of gates should be as less as possible (to reduce the number of weld marks), and the gate location should be designed in the principle of the weld mark location is at the lowest requirement for product strength. Secondly, an overflow tank can be designed, so that part of the front melt(resin) overflows to the overflow tank during plastic mouldings for LFRT materials, in this way the GF can be three-dimensionally distributed at the weld mark to increase its strength.
in cavity, referred to as cavity , cavity formed during will force to open plastic mouldings for LFRT materials, in order to ensure that fully meets accuracy requirements, clamping system must have sufficient clamping Force to lock . In , in order to make not open by cavity formed by cavity , clamping force F=KPcpA (F clamping force Kg; K safety factor, generally takes 1∽2; average in Pcp cavity Kgf/cm2; maximum projected area of A and casting system on parting surface cm2.) average of Ccp cavity is a relatively difficult value, which is subject to , conditions, properties, structure. , nozzle and runner form,shape and accuracy requirements and or factors. average cavity can be selected according to Table 2-1. Table 2-1 Relationship between average of cavity and ed selection of clamping force is very important. If clamping force of is not enough, it is easy to make flash when forming, and thin-walled cannot be formed. force is too large, it is easy to crush , internal stress of increases and unnecessary waste is caused. In recent years, due to improvement of efficiency of izing mechanism, clamping mechanism is improved, speed is improved, and control reof is realized. clamping force of has dropped significantly plastic mouldings for LFRT materials.
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