Die casting mold installation precautions includes mold preheating, lubrication treatment, locking force selection and optimization of cooling system and others.
During the installation of the die casting mold, please note the following precautions:
1. Die casting mold installation precautions: Mold preheating
Die casting molds need preheate before using. That to ensure that the mold surface temperature is close to the temperature of the molten metal. Generally, the preheating temperature of the mold should be about 50-60°C higher than the temperature of the molten metal, which can reduce thermal shock and avoid cracks or deformation of the mold due to excessive temperature difference.
2. Die casting mold installation precautions: Lubrication treatment
It is common practice to apply lubricants in the mold cavity, such as Turaes-S release agent, to prevent molten metal from adhering to the mold surface.
In addition, aluminum foil can be placed at the bottom of the mold cavity to further prevent the flow of the melt from being restricted.
3. Die casting mold installation precautions: Selection of mold locking force
The locking force of the mold must be greater than the melt expansion force to ensure the sealing of the mold parting surface and avoid splashing of liquid aluminum.
If the locking force is insufficient, it may cause mold cracking or melt leakage, thus affecting product quality.
4. Optimization of cooling system
The design of cooling system is crucial to mold life and product quality. A reasonable cooling system can effectively control mold temperature, reduce the occurrence of thermal fatigue cracks, and improve the surface quality and dimensional accuracy of castings.
5. Selection of mold materials
The use of high temperature resistant and wear resistant materials (such as cemented carbide or nano-composite copper powder materials) can significantly improve the service life and wear resistance of the mold.
6. Rationality of mold design
Mold design should take into account deep cavity, complex shape and high precision requirements. For example, when designing deep hole die casting molds, require a single hydraulic drawing structure and edge positioning method. Thus to ensure the accuracy of deep hole size and position.
7. Operating specifications
During the die casting process, the operating procedures should be strictly followed. Including the reasonable setting of parameters such as pouring temperature, pressure and speed. For example, the pouring temperature usually sets above 180°C. And the mold preheating temperature needs to be higher than 180°C.
8. Maintenance and inspection
Regularly check the wear of the mold and replace damaged parts in time. In addition, the use of new materials such as ceramic coating can further protect the mold surface and extend its service life.
Through the above measures, the installation quality and service life of the die-casting mold can be effectively improved.Wwhile ensuring the high quality and production efficiency of the castings.
Haichen die casting machine
Haichen is one Chinese die casting machine manufacturer for more than 10years. We produce both high pressure cold chamber die casting machine and hot chamber die casting machine.They have durable and highly precise features.
Haichen also produce die casting machine auxiliary equipment. Such as conveyor, vacuum machine, mold temperature controller, industrial robot, sprayer and so on.
We supply cold chamber and hot chamber die casting machine spare parts.
Welcome contact us for any further discussing.
