As the most important molding equipment for injection molding products, the quality of injection molds directly affects the quality of the products. Moreover, due to the significant proportion of molds in the production costs of injection molding enterprises, their service life directly affects the cost of injection molded products. Therefore, improving the quality of injection molds, maintaining and servicing them well, and extending their service life can produce more products.
When performing mold operations, it is forbidden to apply excessive pressure to the mold to prevent deformation or cracking. Preheat the mold to the recommended temperature before starting up to reduce thermal stress damage. During production, avoid foreign objects falling into the mold and confirm that the ejector pin is fully reset before closing the mold.
After each production shift, use a soft cloth or air gun to clean the residual plastic or oil stains in the mold cavity, slider, ejector pin, and other parts. After producing approximately 10000 molds, disassemble the molds for thorough cleaning, removing impurities from hidden areas such as waterways and exhaust ducts. When cleaning, avoid using sharp tools to scratch the surface of the mold. Regularly apply high-temperature resistant lubricating grease to moving parts such as guide pillar, guide sleeves, top pins, and sliders, but pay attention to the amount of lubricant used, as excessive amounts may adsorb dust and cause sticking.
In addition, record the maintenance time, replacement parts, and abnormal situations for easy traceability of issues.
Every year, a professional manufacturer is commissioned to conduct precision testing and observe whether there are any abnormal wear or corrosion marks on the surface. Check if the ejector pin and plate are stuck or offset. Regularly replace vulnerable components such as springs, sealing rings, and top pins. Clean the scale in the cooling water channel to ensure cooling efficiency and prevent uneven mold temperature. When the mold is significantly damaged, EDM repair or surface coating treatment should be carried out.
If it is not used for a long time, it is necessary to spray anti rust oil on the mold and focus on protecting the mold cavity and parting surface. In humid environments, desiccants or moisture-proof boxes should be used. The mold should be placed vertically or horizontally on a dedicated rack to avoid deformation caused by stacking.
Through system maintenance, the lifespan of the mold can be increased by 30% -50%, while reducing downtime and scrap rates. The key is to standardize the maintenance process and train operators to develop standardized habits.
Qingdao Root Industrial and Trading Co., Ltd. specializes in the injection mold industry for 18 years. If you have any needs related to molds, please contact us.
