In order to determine the mold damage state and repair measures. Processing enterprises should be in the injection molding machine, under the normal operation of the mold, test the performance of the mold, and the final molded plastic parts size measurement, through these information can determine the existing state of the mold, find out the cavity, core, cooling system and parting surface damage.

At the same time to track: focus on several important parts mould ejection, guiding role is to ensure that the mold opening and closing movement and plastic ejection, if any of these parts stuck due to injury, will lead to production, so often should keep the mould thimble, guide post lubrication (should choose the most suitable lubricant), and regularly check whether thimble, guide pin, etc the distortion and surface damage, a After discovery, should be replaced in time;

After the completion of a production cycle, professional anti-rust oil should be coated on the working surface, movement and guide parts of the die, especially attention should be paid to the protection of the elastic strength of the bearing parts of the gear and rack die and the spring die, to ensure that it is always in the best working state.

As the production time continues, the cooling channel is easy to deposit scale, rust, silt and algae, so that the cooling channel section becomes smaller, the cooling channel becomes narrower, greatly reducing the heat exchange rate between the cooling liquid and the mold, and increasing the production cost of enterprises. Therefore, attention should be paid to the cleaning of the flow channel.

For hot runner mold, heating and control system maintenance is conducive to prevent production failure, so it is particularly important. Therefore, after the end of each production cycle, the belt heater, rod heater, heating probe and thermocouple on the mold should be measured with an ohmmeter. If there is any damage, it should be replaced in time, and compared with the mold resume, make a good record, so as to find out the problem in time and take countermeasures.

The surface maintenance of the mold can not be ignored, it directly affects the surface quality of the product, the focus is to prevent corrosion, so it is particularly important to choose a suitable, high quality, professional anti-rust oil. When the production task of the mold is completed, the residual injection molding should be carefully removed by different methods according to different injection molding. The residual injection molding and other deposits in the mold can be removed by copper rod, copper wire and professional mold cleaning agent, and then air dry.

Prohibit iron wire, steel bar and other hard objects to clean, so as not to scratch the surface. If there are rust points caused by corrosive injection molding, use a grinding machine to grind and polish, and spray professional anti-rust oil, and then store the mold in a dry, cool, dust free place.

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