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Case studies
  • Suggestions on reducing tool wear in machining process
    Recommendations for minimizing wear in the tools Highly glass-loaded thermoplastics can cause significant wear on tools and equipment. Fiberglass has a Mohs hardness of 7. Where possible machine parts and tools that are exposed to Polytron should be hardened. Further, molds should be polished to a 0.0001 (or better) finish High wear is often seen at the gates. If possible; a hardened insert can help in this high wear area For long production molds, a Rockwell hardness of +60 is recommended. This can be obtained by using D2 or A2 steel andthen hardening. Shorter runs can be effectively managed by placing the molds with electroless nickel, slow deposition dense chrome or Nye-carb plating Different long fiber enhance polymer has the same process,but the specific needs also to the actual production process encountered in the specific analysis and solution
  • What is the difference between LFT and CFRT?
    LFT is named Long Fiber Reinforced Thermoplastics (LFT). Compared with ordinary fiber reinforced thermoplastics, LFT has higher performance and better performance.In general, the fiber length in long fiber reinforced thermoplastic materials is less than 1 mm, while the fiber length in LFT is currently more than 5mm. CFRT,the name is continuous fiber reinforced thermoplastic material, continuous fiber reinforced thermoplastic material is different from short fiber reinforced (SFRT) and long fiber reinforced (LFRT) composite material. CFRT is made of continuous fiber as reinforcement material and thermoplastic resin as matrix. It has the characteristics of light weight, high stiffness and high toughness. It has been widely used in many fields such as aerospace, military industry, automobile industry, shipbuilding, sports equipment, electronics, transportation and medical treatment. What is the relationship between long fiber reinforced plastics (LFT) and continuous fiber reinforced composites (CFRT)?You can mix the two, right? The retention length of LFT fiber in plastic is about 1-25mm, while the retention length of CFRT is basically the same as that of plastic products. The length of fiber depends on the size of the product.There is no conflict between the two materials and they are complementary. LFT can be injected onto CFRT to produce plastic products together. If you have any double of LFT and CFRT, you can contact us. EMAIL:sale04@lfrtplastic.com WEB:www.lft-g.com
  • Is Fiber Glass really glass?Is long fiber nylon an additive material?
    Long glass fiber and glass are different. Long glass fiber is a common filling material with a relatively light texture, but as a filling material, it can change the original characteristics of the raw material resin.LFT, as we call it collectively, can maintain a long glass fiber length during injection molding.The long fiber modified material produced by LFT-G is a high performance modified material wrapped and filled with long glass fiber and resin, which can not only make up for the shortcomings of resin material, but also much better than the ordinary modified material.In LFT fell long fiber nylon, join the glass fiber as reinforcing skeleton throughout the matrix resin, not only has high rigidity, high impact, high dimensional stability, temperature tolerance, low warpage, creep, etc, the key is his with metal material coefficient of thermal expansion, so the long glass fiber reinforced nylon LFT fell - PA on many occasions with the characteristics of the alternative metal. Therefore, PA material can be reinforced with long fibers to replace steel with plastic to reduce the weight of the finished product, which can not only save costs, but also have high-performance finished products. Website:www.lft-g.com Contact:sale04@lfrtplastic.com Whatsapp:+86 13559474625
  • Characteristic analysis of long fiber modified material
    LFT-G long fiber reinforced composite material is simply to improve the characteristics of flame retardancy, warping, high temperature resistance and high strength through the steps of expansion and consolidation of plastics and engineering plastics.The mechanical properties of modified materials are mainly related to the base resin, the bond degree between resin and fiber, the property of reinforced fiber, forming process and the length of modified fiber. For example, PA66, a long fiber with high strength, should be added to maintain a large aspect ratio. Under the premise of a good combination of single screw, the length of the fiber can be longer.The length of LFT-G fiber is generally 5-12mm, which can be customized for longer length. In order to achieve physical properties such as flame retardancy, aging resistance and high temperature resistance, different materials such as graphene and rare earth can be added to basic plastics, and specific production technologies can be used to achieve the desired purpose. In order to have wear-resistant products and other characteristics, the use of filling a variety of inorganic additives and synthetic resin made of happy plastic. If you want to know more about the characteristic of LFT-G granules,Please contact us. Email:sale04@lfrtplastic.com Web:www.lft-g.com
  • LFT long fiber reinforced thermoplastic cause of floating fiber
    What is floating fiber?It is generally believed that the surface appears radial white traces, white traces with the increase of the fiber is more obvious known as floating fiber.Floating fiber not only affects the appearance of the finished product, but also leads to the degradation of the performance of the finished product. Floating fiber is caused by exposure to glass fiber. In the process of filling and flowing of plastic melt, the resin has no intact wrapping fiber, resulting in fiber exposure on the surface. After condensation and forming, radioactive white traces are formed on the surface of plastic parts. The reasons for the emergence are: 1. Due to the difference in fluidity and density between glass fiber and resin, there is a tendency to separate.The low-density fiberglass floats on the surface, while the high-density resin sinks to form a floating fiberglass. 2. Due to the friction and shearing force of the screw, nozzle, runner and gate of the plastic melt in the flow process, the local viscosity is poor, which causes the damage of the interface layer of the glass fiber surface.The smaller the viscosity, the more serious the destruction of the interface layer, the smaller the binding force of glass fiber and resin. 3. When the glass fiber flows from the inside to the outside and touches the surface of the touch tool, the light and fast glass fiber you connect will freeze immediately due to the temperature difference between inside and outside.If the glass fiber is not fully wrapped in time, the floating fiber will appear. Floating fiber is a phenomenon that needs to be combined with the actual material and production conditions and other factors. If you want to know more solutions, contact us. Email:sale04@lfrtplastic.com;sale02@lfrtplastic.com Web:www.lft-g.com
  • Talking about the reasons for the exposure of glass fiber in injection molded parts
    For a long time, in order to improve the strength and temperature resistance of the product, the use of glass fiber to enhance the modification of plastic has become a very good choice. A large number of facts have also proved the good performance of glass fiber. However, glass Fiber and plastic are two different materials. Naturally, there is a compatibility problem between the two. The exposure of glass fiber (or floating fiber) is a direct manifestation of the compatibility of the two. Glass fiber is divided into long fiber and short fiber in morphology, and it is white. Fiber addition is made by blending glass fiber and resin to granulate. When the glue is injected, the flow of the material is similar to the flow of liquid. If there is a slight impurity in the injection molding, the material will stay like a river attached to the bank, thus forming the exposed glass fiber. This is because the fluidity of glass fiber relative to plastic is much worse, and the flow of plastic in the abrasive tool flows forward from the middle of the sandwich, and the two sides are turned outward, so the best fluidity must be run to the mold. At the forefront, the bad ones will stay on the mold surface. At the same time, glass fiber has the effect of promoting crystallization, and PP (Polypropylene) and PA (Polyamide) are crystalline materials. The crystallization is fast and the cooling is fast; the cooling is fast, the glass fiber is difficult to be bound and covered by the resin, so that the glass fiber is easily exposed. The point is here. Does the PP polypropelene glass fiber LGF 20 30 40 50 of the LFT-G process also have the problem of glass fiber floating? How to better avoid or solve it? Let's discuss it in the next article. Contact:Ms Amy / sale02@lfrtplastic.com
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