Controlled Low Pressure Injection Molding Features Controlled low pressure injection molding is characterized by its distinction from conventional injection molding. The conventional injection molding filling stage controls the injection rate, while the low pressure injection molding filling stage controls the injection pressure. During the low-pressure injection process, the inlet pressure of the cavity is constant,…
DetailsInjection-Compression Molding This molding process was developed for molding optical lens surfaces. The molding process is as follows: the mold is first clamped, but the movable mold and the fixed mold are not completely closed, and a certain compression gap is reserved, and then the melt is injected into the cavity; after the melt injection…
DetailsShear Control Orientation Injection Molding Shear Control Orientation Injection molding essentially applies a dynamic pressure to the melt through a gate, causing a vibrational shear flow of the polymer melt in the cavity, under which the molecular chains or fibers in different melt layers are produced. Orientation and freezing in the workpiece, thereby controlling the…
DetailsPlastic Injection Molding Process Plastic products, and the molding process is highly automated, and has a wide range of applications in plastic molding. However, with the increasing use of plastic products, people have put forward higher requirements on the precision, shape, function and cost of plastic products. The traditional injection molding process has been difficult…
DetailsGas (Water) Assisted Injection Molding Gas-assisted injection molding is one of the most important developments in injection molding technology since the advent of reciprocating screw injection molding machines. It produces a hollow section inside the injection molded part by high-pressure gas, utilizes the volumetric pressure of the gas, reduces the residual internal stress of the…
DetailsApplicability Of Gas Assisted Injection Molding Technology Gas-assisted technology has made it possible to use injection molding for many parts that could not be injection molded by traditional processes. It has been obtained in almost all plastic parts such as automobiles, home appliances, furniture, electronic devices, daily necessities, office automation equipment, and building materials. Wide…
DetailsWater-Assisted Injection Molding Technology Water-assisted injection molding is a new technology developed by IKV based on gas-assisted injection molding technology. Water is used instead of nitrogen to assist the flow of the body. Finally, compressed air is used to press water out of the workpiece. Water-assisted injection molding can significantly reduce molding time and reduce…
DetailsMold Sliding Injection Molding Mold sliding injection molding is a two-step injection molding method developed by Nippon Steel Co., Ltd., which is mainly used for the manufacture of hollow products. The principle is that the hollow product is first divided into two parts, and the two parts are respectively injected to form a semi-finished product,…
DetailsPlastic Mold Steels Should Meet The Requirements The working condition of the plastic mold is different from that of the cold die. Generally, it must be operated at 150 °C-200 °C. In addition to being subjected to a certain pressure, it must also withstand the temperature influence. The same mold can have multiple failure modes,…
DetailsPlastic Mold Material Selection 1. Working conditions of plastic mold Due to the development of plastics and plastic molding industry, the quality requirements of plastic molds are getting higher and higher, so the failure of plastic molds and its influencing factors have become important research topics. The main working parts of the plastic mold are…
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