Views: 66 Author: Site Editor Publish Time: 2021-07-08 Origin: Site
In order to determine the damage of injection molding tooling and repair methods. The plastic mold tooling company should test the various properties of the mold under the normal working conditions of the injection molding machine and the mold, and measure the dimensions of the final formed custom plastic parts. After this information, the current status of the mold can be confirmed, and the cavity and type can be found. Damage to the core, cooling system, and parting surface. At the same time, we must focus on tracking and testing several important parts of the mold: the ejector and guide parts are used to ensure the opening and closing movement of the mold and the ejection of the plastic part. If any part of the mold is stuck due to damage, it will cause the production to stop, so it should be always Keep the mold thimble and guide post lubricated (the most suitable lubricant should be selected), and regularly check whether the thimble, guide post, etc. are deformed and damaged in appearance. Once found, replace it in time; after completing a production cycle, work on the mold The exterior, movement, and guide parts are coated with professional anti-rust oil, and special attention should be paid to the maintenance of the elastic strength of the bearing parts of the gear, rack mold and the spring mold to ensure that they are always in the best working condition.
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, greatly reducing the heat exchange rate between the coolant and the injection molding tooling. Cost, therefore, attention should be paid to the finishing of the runner; for the hot runner mold, the maintenance of the heating and control system is helpful to prevent production failures, so it is particularly important. Therefore, after each production cycle is completed, the band heater, rod heater, heating probe, and thermocouple on the mold should be measured with an ohmmeter. If it is damaged, it should be replaced in time and checked with the mold resume. Compare and keep a record so that when problems are discovered, countermeasures can be taken.
The appearance and maintenance of injection molding tooling cannot be ignored. It directly affects the appearance quality of the product. The focus is on preventing corrosion. Therefore, it is particularly important to choose a suitable, high-quality and professional anti-rust oil. After the mold has completed the production task, different methods should be used to carefully remove the remaining injection molding according to different injection molding. Copper rods, copper wires and professional mold cleaning agents can be used to remove the remaining injection molding and other deposits in the mold, and then air dry. It is forbidden to arrange 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 injection molding tooling in a dry, cool, and dust-free place.