The process of making sand shells by core shooting machines involves sand casting

The process of making sand shells with a core shooting machine involves a step in sand casting technology, which is mainly used to prepare the sand core inside the part. The following are the general process details of core shooting machines for manufacturing sand shells:

1. Design and model preparation:
Part Design: Beginning with automotive engine part design, designers create three-dimensional models that include the part's exterior and interior structures.
Sand core design: Based on the internal structure of the part, determine the shape and size of the sand core that needs to be prepared.
2. Prepare core box and mold:
Core Box Preparation: The core box is the outer structure used to contain and support the sand core. The process of preparing a core box usually involves using a sand shell molding machine or other tools to prepare the shape of the core box.
Mold preparation: Corresponding to the core box, the mold for the external structure also needs to be prepared to ensure the accuracy and stability of the core box.
3. Sand core preparation:
Sand Core Material Preparation: Select a sand material suitable for preparing the sand core, usually a special sand that can form a strong structure and resist thermal stress.
Core shooting machine operation: The core shooting machine is a device used to inject sand into the core box to form the sand core. The operator sets the parameters of the core shooting machine according to the design requirements.
Sand core injection: Under the action of the core shooting machine, the sand material is injected into the core box to fill the entire internal space. After injection, the sand needs to solidify to form a strong sand core.
4. Cooling and hardening:
Waiting for hardening: After the injection is completed, the sand core needs a period of time to cool and harden to ensure that it has sufficient strength.
Core Box Opening: Once the sand core has hardened sufficiently, the core box can be opened and the sand core removed from it.
5. Trimming and inspection:
Trimming: Some sand cores may require trimming to remove excess sand or surface treatment to ensure they meet design requirements.
Inspection: Conduct quality inspection on the sand core to check its size, surface finish and internal structure to ensure that its quality meets the requirements.
6. Assembly and casting:
Core Box Assembly: If the part requires multiple sand cores, the different core boxes may need to be assembled together to form the complete internal structure.
Casting: Finally, the prepared sand core assembly is placed in a sand mold, which then undergoes a casting process in which molten metal is injected to form the final automotive engine part.
A key step in the process is to use a core shooting machine to prepare the sand core, ensuring its accuracy and quality to meet the design and performance requirements of automotive engine parts.