Changshu smoothly da plastic products factory about extrusion mould maintenance

In a lot of plastic profile production enterprise, the requirement of mould when ordering, debugging rules are very strict, but for delivery after use, maintenance and maintenance is not enough. In fact, a number of good mould, only make correct maintenance appropriately, can give full play to its performance, extend the service life of it as far as possible, the following works of plastic products factory in changshu extrusion mould maintenance simple discussion.



a set of extrusion die die head, finalize the design mould finalize the design water tank of three parts, at the end of the production or after downtime, maintenance should be carried out promptly to the mold. There are some manufacturers will die after join the downtime is expected to remove the placement of a complete set of to use, and not remove clean up its fragmentation. Although downtime is expected to have clean effect, less dense paste not easily, but a whole set of die is not easy to heat, will inevitably break down under the high temperature long corrosion runner. Cooling down material in the flow passage of shrink back to cause some thinner smaller keep-off, the deformation of the support bar and the deposition inside the port scale, such as the downtime alone is not clear, so the die shard after downtime should be in time remove the cleanup, remove the use should be paid attention to when brassinolide is woven into the mold cavity of roller to uniform forcibly unload, shall not use iron woven rods, unilateral forcibly pry or hammer, split so as not to damage the die face and dowel, residual materials can be used in the runner long nose pliers clamp and use compressed air to blow hard pull. Flow surface adhesion of fouling available copper sheet gently wipe out or with metallographic sandpaper polishing, such as surface scratch, can use first fine abrasive polishing after polishing, lest produce hanging paste in the production.



some die on the core processing with import small cold gas holes, should pay attention to clean up its open, once the jam, in production can cause cavity inner rib forming difficulties or deformation, etc. Cleared in the die assembly, in the thread and locating pin surface coated with high temperature grease, in order to prevent thread, positioning pin rusty killed under long time high temperature corrosion. In screw half tight state adjust the die clearance, to ensure that each side wall discharging, and then tighten screw. Port should be spray lubrication antirust oil, in the storage process in order to reduce the gas and water corrosion of flow channel, the die face and should be sealed with grease, in order to avoid damage to the port from the ingress of debris. Stock mould when removing cleaning should pay attention to avoid collision damage, lest cause water seal bad, especially pay attention to molding mirror can't damage. Stock mould really exudates impurity in the air tank and stomatal available copper soft piece of qing dynasty, such as, for the evenness of airway patency vacuum adsorption. Cooling water channel can use compressed air to blow clean, so as to avoid scale impurities accumulated clogging waterways reduce or cooling uneven cooling effect. Cleared by plate should arrange installation serial number, and corrosion protection coating antirust grease.



the tank at the end of the production application plug-hole put the leftover water in the oven, finalize the design after extraction with brush to clean water tank, so as to avoid tank impurities in production due to the vacuum negative pressure under the action of into the block between the profile surface scratch material surface. Finalize the block after loaded tank shall ensure that the four side with adequate freedom to adjust activity space, in order to avoid the finalize the design piece stuck to profile by producing resistance cause other problems. After the mold cleaning maintenance, safety neatly stored in dry, clean and ventilated warehouse.