A mold is a tool used to form an object and is composed of several parts. Different molds consist of different parts. Mold maintenance requires qualified mold maintenance workers who have received professional training. In the maintenance process, we must understand the mold technical standards. For example, a die casting mold is a very expensive special precision machine, which must be very certain. This not only requires mold maintenance workers to have superb technology and excellent style, but also have a serious and responsible spirit. Therefore, we will introduce the precautions for mold maintenance.
1. Clean the metal shell and oxide skin around the mold to show the true color of the mold.
2. Refer to the last die-casting product sent with the mold for repair, and carefully check the problems of the mold. Check whether there is strain, clamping, crushing and meat dropping, whether the small core is bent or broken, whether the movable core is inserted and positioned incorrectly, whether the push rod is broken or the length of the push rod is changed, whether the insertion block is positioned incorrectly, and whether the fastening bolt is loose. Repair or replace according to the damage.
3. Cavity collapse, crack and block falling off that cause slight tensile damage to the casting can be repaired by local welding. Welding repair shall be carried out in strict accordance with the welding process, otherwise a lot of mold life will be lost. The above faults of small formed parts are more serious or the die is damaged.
4. If the forming surface of large forming parts is seriously collapsed, cracked, fallen off, etc., local welding repair can be carried out. Welding repair shall be carried out in strict accordance with the welding repair process, otherwise a large number of mold life will be lost. The above faults of small formed parts are more serious or the die is damaged.
5. Sliding parts such as core pulling mechanism and guide device shall be thoroughly cleaned, carefully inspected and maintained. Re lubricate with high-temperature grease before assembly.
6. If there is hydraulic core pulling, the hydraulic parts and molds shall be repaired at the same time. The maintenance of the hydraulic part shall pay special attention to cleaning to prevent pollution, otherwise the hydraulic system of the whole die-casting machine will be polluted.
7. When the mold breaks down or is damaged in the production project, the repair plan shall be determined according to the specific situation. If necessary, carry out comprehensive maintenance according to the above methods.
8. For the molds that need to be repaired and maintained, the forming surface, parting surface and mounting surface shall be subject to anti rust treatment, closed and fixed, and placed on the base plate according to the installation direction of the mold on the machine. Mold attachments are placed with the mold.
