Advantages of High Sprue Pressure
- Complete Filling: Higher sprue pressure can help ensure that the mold cavity is completely filled, especially in cases of complex or thin-walled parts.
- Reduced Defects: It can reduce the likelihood of certain defects such as short shots (incomplete filling) and voids within the part.
- Improved Surface Finish: Higher pressure can contribute to a better surface finish by ensuring the material flows smoothly and fills the mold uniformly.
[elementor-template id=”4330″]
Disadvantages of High Sprue Pressure
- Flash: Excessive pressure can cause the molten material to leak out of the mold cavity, creating flash (excess material on the part edges).
- Mold Wear and Tear: Higher pressures can lead to increased wear and tear on the mold, potentially reducing its lifespan.
- Material Degradation: Some materials may degrade under high pressure, leading to reduced mechanical properties or poor appearance.
- Increased Clamping Force: Higher injection pressures require greater clamping force to keep the mold closed, which can increase the overall stress on the molding equipment.
Balancing Sprue Pressure
- Optimal Pressure: The goal is to find the optimal sprue pressure that ensures complete filling and desired part quality without causing defects or undue stress on the mold and machine.
- Process Parameters: Sprue pressure should be balanced with other parameters like injection speed, temperature, and mold design to achieve the best results.
- Material Considerations: Different materials have varying flow characteristics and may require adjustments to sprue pressure accordingly.
In summary, while high sprue pressure can be beneficial in certain situations, it must be carefully controlled and balanced with other process parameters to avoid potential drawbacks. The ideal sprue pressure depends on the specific requirements of the part being produced and the materials used.
Related Conten: Plastic Parts Manufacturer
 DTG Mould Trade Process |
|
| Quote: | According to sample, drawing and specific requirement. |
|---|---|
| Discussion | Mold material, cavity number, price, runner, payment, etc. |
| S/C Signature | Approval for all the items. |
| Advance | Pay 50% by T/T |
| Product Design Checking | We check the product design. If some position is not perfect, or can not be done on the mould, we will send customer the report. |
| Mold Processing | Send report to customer once each week |
| Mold Testing | Send trial samples and try-out report to customer for confirmation |
| Mold Modification | According to customer’s feedback. |
| Balance Settlement | 50% by T/T after the customer approved the trial sample and mould quality. |
| Delivery | Delivery by sea or air. The forwarder can be designated by your side. |
 |
|