Design and development of medical equipment and product molds

Air in medical mold processing systems and mold cavities; some materials are rich in moisture and will not be washed away by boredom and evaporate into water vapor at high temperatures; gases that are different from unstable plastics due to high temperatures during injection molding; plastic materials Gases formed by sweating or chemical reactions between certain additives. Bubbles are scattered in plastic products, bubbles are gathered in the mold cavity, often opposite to the gate; differentiation or chemical reaction bubbles in plastic materials are dispersed in the thickness of plastic parts; residual water vaporized bubbles in plastic materials are irregularly dispersed in all On plastic parts. Design and development of medical equipment and product molds:

Design and development of medical equipment and product molds

      Coupled with the cause of poor exhaust, medical mold manufacturers need to find out the cause as soon as possible. "Poor exhaust of injection molds will cause a series of damage to many aspects such as the quality of plastic parts. One manifestation is that during the injection molding process, the melt will replace the gas in the cavity. Assuming that the gas is not discharged in time, it will constitute the melt. Difficulty inflating, resulting in short injection volume and inability to fill the cavity; poor understanding of clean air will constitute high pressure in the cavity and enter the plastic to a certain extent, forming quality defects such as voids, pores, refinement and cracking;

      Due to the high density of medical equipment molds, the temperature in the cavity rises sharply, leading to the differentiation and baking of the surrounding melt. Professional medical mold companies have caused a certain degree of carbonization and charring of plastic parts. Mainly due to the convergence point of the two melts, namely the gate flange; the gas cleaning is not smooth, so that the melt enters each cavity at different speeds, it is easy to form moving signs and melting signs, and the mechanical properties of plastic parts are reduced; Due to the blockage of gas in the mold cavity, the filling speed will be reduced, the molding cycle will be affected, and the tax will be reduced.