Gud Mould Industry Limited

  With development of material technology, application proportion of plastic parts on automobile bodies is increasing, such as automobile front/rear bumpers, instrument panels and door guards. Plastic parts also tend to be bigger and heavier. This has led to larger and larger clamping force of injection molding machine selected by related injection molding manufacturers. For injection molding machines over 2 000 t, most foreign manufacturers use two-platen injection molding machines (direct pressure mode clamping), while most domestic manufacturers use three-platen injection molding machines (crankshaft mode clamping). Two-platen injection molding machine Plastic injection molding machines are referred to as injection molding machines for short, and there are usually two types: screw type and plunger type. Screw-type injection molding machines of more than 2 000 tons mainly include injection device, mold clamping device, hydraulic transmission system and electrical control system. ...

  Nylon, a revolutionary material, was born 80 years ago and was invented by Dr. Wallace Carothers of DuPont in 1935. It is the earliest synthetic fiber. Afterwards, DuPont led development of materials science and applied nylon as an engineering polymer, enabling it to achieve exponential development. Emergence of nylon has given a new look to textiles. Its synthesis is a major breakthrough in synthetic fiber industry and a very important milestone in polymer chemistry.  Main varieties and representative companies of nylon family are shown in following table: Nylon category Typical characteristics Representative enterprise PA6 PA6 is a translucent or opaque milky white particle. It has characteristics of thermoplasticity, light weight, good toughness, chemical resistance and good durability. It is generally used in auto parts, mechanical parts, electronic and electrical products, engineering accessories and other products. BASF PA66 PA66 is formed by polycondensation of adipic...

【Abstract】In order to improve injection efficiency and material utilization of connecting rod components, hot runner technology is introduced. Design process includes plastic part analysis, mold design and assembly drawing design. It mainly introduces determination of design plan, selection of mold base and selection of hot runner system. Design process adopts UG full 3D design, which helps to make mold structure intuitive, to find problems and avoid unnecessary errors. 1 Introduction Hot runner injection molding is an important development direction of traditional injection molding. Its biggest feature is that plastic in runner system will not solidify during production process, nor will it be removed from mold with plastic part. Simply put, nozzle of injection molding machine is directly extended to plastic part for waste-free production, thereby greatly improving material utilization rate; at the same time, process is shortened and production efficiency is improved. In mold design p...