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<p>As the most important molding equipment for the processing of injection molded products, injection molds are directly related to the quality of products. Moreover, since the mold occupies a large proportion of the production cost of injection molding processing enterprises, its service life directly affects the cost of injection molded products. Therefore, improving the quality of plastic injection molding, maintaining and maintaining them well, and prolonging their service life are important issues for injection molding product processing enterprises to reduce costs and increase efficiency. </p><p><br></p><p>Therefore, the maintenance of the<a href="https://www.tozhiyuan2.com/plastic-molding" rel="noopener noreferrer" target="_blank"> plastic injection molding</a> is very important, as follows:</p><p>1. The processing company should first equip each pair of molds with a resume card to record and count its use, care (lubrication, cleaning, rust prevention) and damage in detail. Based on this, it can find out which parts and components have been damaged and the degree of wear. Provide information materials for discovering and solving problems, as well as the molding process parameters of the mold, and the materials used in the product to shorten the trial run time of the mold and improve production efficiency.</p><p><br></p><p>2. The processing company should test the various properties of the mold under the normal operation of the injection molding machine and the mold, and measure the size of the final molded plastic part. The current state of the mold can be determined through this information, and the cavity and core can be found , Cooling system and parting surface, etc., according to the information provided by the plastic parts, the damage state of the mold and the repair measures can be judged.</p><p><br></p><p>3. Focus on tracking and testing of several important parts of the mold: The ejector and guide components are used to ensure the opening and closing movement of the mold and the ejection of the plastic parts. If any part of the mold is stuck due to damage, it will cause production to stop. Always keep the mold thimble and guide post lubricated (use the most suitable lubricant), and regularly check whether the thimble, guide post, etc. are deformed and damaged on the surface. Once found, replace it in time;</p><p><br></p><p>After completing a production cycle, it is necessary to apply professional anti-rust oil to the working surface, movement, and guide parts of the mold. Particular attention should be paid to the protection of the elastic strength of the bearing parts of the gear and rack mold and the spring mold to ensure that they are always In the best working condition;</p><p><br></p><p>As the production time continues, the cooling channel is prone to deposit scale, rust, silt and algae, which reduces the cross-section of the cooling channel and narrows the cooling channel, which greatly reduces the heat exchange rate between the coolant and the mold, and increases the production cost of the enterprise. Therefore, attention should be paid to the cleaning of the runner; for the hot runner mold, the maintenance of the heating and control system helps prevent production failures, so it is particularly important.</p><p><br></p><p>Therefore, after each production cycle, the band heaters, rod heaters, heating probes and thermocouples on the mold should be measured with an ohmmeter. If they are damaged, they should be replaced in time and checked with the mold history table. Compare and keep records so that problems can be discovered in time and countermeasures can be taken.</p><p><br></p><p>4. Pay attention to the surface maintenance of the mold. It directly affects the surface quality of the product. The focus is on preventing rust. Therefore, it is particularly important to choose a suitable, high-quality, and professional anti-rust oil. After the mold completes the production task, different methods should be used to carefully remove the residual injection molding according to different injection molding. Copper rods, copper wires and professional mold cleaning agents can be used to remove the residual injection molding and other deposits in the mold, and then air dry.</p><p><br></p><p>It is forbidden to clean up hard objects such as iron wires and steel bars to avoid scratching the surface. If there are rust spots caused by corrosive injection molding, use a grinder to grind and polish, and spray professional anti-rust oil, and then store the mold in a dry, cool, and dust-free place.</p><p><br></p>
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