1. Preparatorywork before the die casting machine installed on the mold: Adjust the positionof wall plate ejector according to the size of the rear roof, ensuring that theejector pin parallels( If not, the ejector will be broken and scuffed), andkeep the working surface clean.

2. Moldmust be compressed after installation, to avoid loosening in the production andresulting in drawing die.

3.Connect the cooling water and turn it on before production. All active partsshould be filled with oil to keep the parts lubricated; The ejector pin shouldbe of medium length to ensure that the product can be successfully removed. Thelength can’t be too long, or the ejector will be scuffed and broken because ofoverload. Check the plunger, making sure it’s not too long.

4.Try to minimize the firing temperature of aluminum liquid under the premisethat it does not affect the quality of products, generally between 640℃-650℃.If the temperature is too high, it will increase erosion. And it can easilycause flying materials, flash and fried material, which have a direct impact onthe life of the mold; Conversely, if the temperature is too low, it is notconducive to molding.

5. Preheat the mold before die casting, making surethe mold reach the temperature of 180℃-250℃. 5-15 minutes before starting up,inject in a low speed to achieve the purpose of slow heating.

6. In the case of meeting the demand of molding,try to use a relatively low-speed injection and high-speed injection. If thefilling speed is too high, it will cause sticky mold, erosion, cracking.

7. During the die casting operation, spraying formrelease agents evenly can reduce the sticky mold and wear of mold core. Toprevent mold from chilling effect, the water-based release agent should bepreheated to 25℃-30℃. In addition, the ejector pin should be sprayedafter its ejection so as to prevent it from reciprocating motion.

8. Clean up the excess materialon the surface of the mold in time. Eliminate the gap after clamping andprevent flying material. Eliminate the nonuniform force of mold core andsliding block so as to prevent the mold core from crushing and bursting. Lubricatethe ejector and all active parts regularly.

9. Terminate the productionimmediately if you hear the abnormal sound from ejection during the production.Cut off the machine power supply and guarantee the last product. Notify theprofessional maintenance master in time and analyze the reasons towards theproducts which is reserved in advance. Check the parts of the mold, and repairit in time if there are problems; Do not produce without repair.

10. You'd better not spray dierelease agent after the last mold when you halt production. After die cooling,wipe the debris on the subsurface. Oil in time so as to prevent the mold fromrust. The high temperature produced by die casting will have carbonation on the punch oil and mold release agent. So service it in time if you halt productionfor a long time. Clean up carbide on the mold core to prevent it from erosion;Do not affect the size and accurate reading during maintenance.