Form of mechanization, automation production mechanization and automation in the foundry generally need a great deal of sand core, core making equipment productivity high, covers an area of small, small volume, and easy to mechanization, automation production to meet the needs of the production of the casting. Therefore, the following two kinds of hardening process can be selected.
The heating hardening core equipment inside the core box is mainly the core box core machine, the shell box machine and the multi-purpose core machine. The core equipment USES electricity or gas to harden the core of the metal core. The core strength of the sand core is high, the surface is bright and clean, the dimension precision is high, it is not necessary to use the core bone, the collapsibility is good. At the same time, the single equipment has compact structure, small footprint, high productivity and convenient transportation.
Despite the high energy consumption of heating and hardening core equipment in the core box, due to the above advantages, it is widely used in many foundries because of its easy access to electricity and gas.