The Importance Of Injection Mould Processing Technology
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Syringe mould fracture: Forged mould material has cracked due to improper temperature control. In this case, only the template is changed. The cracking and even breaking templates in production are often caused by the high heat treatment hardness and excessive stress of the selected materials. Cracking is prone to occur during welding, and in severe cases, it is easy to crack especially when welding Cr12 hard material. The template has too much stress and the impact cracks are mostly at the sharp corners of the cavity. If it can be used, it can be perforated and cut in an I-shape, and it can also be hugged around the template.
Abrasion of the injection mould: Especially the thermoset plastic mould and the aluminum alloy injection mould are seriously worn. The hardness of the movable parts in the injection mould is not enough, there are sharp angles, and the selection of materials is also a cause of wear. For highly corrosive products and plastics with considerable hardness and fillers, the surface of the materials we choose should be resistant to corrosion and have a high surface hardness.
Poor heat dissipation of the syringe mould: The heat dissipation of the long core mould is very important. The selection of appropriate materials has a big gap between the appearance of the product and the output of the product. If beryllium copper and other materials containing beryllium and cobalt are selected, after heat treatment, they have higher strength, hardness, fatigue resistance, wear resistance and good heat transfer.
During the production of syringe moulds and products, various defects and deformations often occur in the mould material: One of the reasons for the deformation of the material is that the material used for the mould is not a special mould steel in order to reduce costs. The template has insufficient rigidity, insufficient thickness, and improper heat treatment. And the residual stress, EDM stress, etc., the above reasons often interact, increasing the amount of deformation. In addition to corresponding solutions during processing, widen the mould legs or use stiffening columns at various points in the middle of the mould to resist. Some moulds themselves are not very demanding, and can be heated and deformed at a high temperature at the focal point instantaneously, which is quite effective. People often grind off the edges of the template to reduce the contact surface, and try to reduce the grinding depth to facilitate the effective life of the mould. The deviation of the cavity angle scale after the template is deformed is difficult to correct. The excessively tight core causes the cavity to be deformed by the wall. This phenomenon is particularly serious when the cavity is multi-cavity. If it is barely used, the flash in the middle of the template will not change. , Especially injection products such as nylon, which have good fluidity, should be smoothed to redistribute the core. When the mould is trimmed and welded to a thinner seat, the amount of deformation cannot be ignored. Syringe moulds are the most commonly used method in plastic processing. This method is applicable to all thermoplastics and some thermosetting plastics. The quantity of plastic products made is unmatched by other moulding methods. As one of the main tools of syringe mould processing, injection moulds are used in quality accuracy, manufacturing cycle and injection moulding. The level of production efficiency in the process directly affects the quality, output, cost and product update of the product, and also determines the reaction ability and speed of the enterprise in the market competition.
Yuhuan Shengjiu Mould Co., Ltd. is a professional China manufacturer and supplier of Syringe Mould . We can provide higher engineering design and production efficiency. At the same time, we also provide safe, fast and simple needle-free injection on-site products. Welcome to consult and purchase: https://www.medicalmould.net/