FAQ
We provides customers with comprehensive pre-sales, in-sales, and after-sales services to ensure that all customer issues are thoroughly addressed.
Common defects and solutions:
Sink marks: Caused by inadequate packing pressure or uneven cooling. Solution: Increase packing pressure, optimize cooling channels, or adjust part thickness.
Flash: Result from mold parting line misalignment, excessive injection pressure, or worn mold components. Solution: Realign the mold, reduce injection pressure, or replace worn parts (e.g., seals, guides).
Warping: Due to uneven shrinkage or improper cooling. Solution: Optimize cooling system, adjust molding parameters (e.g., temperature, cooling time), or modify part design.
Voids/air traps: Caused by insufficient venting or improper material drying. Solution: Add or enlarge vents, dry raw materials thoroughly before processing.
To prolong mold lifespan:
Use appropriate mold materials and heat treatment (e.g., hardening, tempering) to enhance wear resistance.
Implement regular cleaning to remove debris, residual material, or rust.
Apply lubricants to moving parts (e.g., ejector pins, slides) to reduce friction.
Avoid overheating by maintaining proper cooling system functionality (e.g., unclogged cooling channels).
Conduct routine inspections for damage (e.g., cracks, wear) and repair promptly.
Use compatible raw materials to prevent chemical degradation of the mold.
A single-cavity mold produces one part per molding cycle, ideal for low-volume production, complex parts, or prototypes. It offers lower upfront costs but slower production rates.
A multi-cavity mold has multiple identical cavities, allowing multiple parts to be produced in one cycle. It is suitable for high-volume production, reducing unit costs and increasing efficiency, but has higher initial tooling costs and requires more precise design to ensure uniform part quality across cavities.
The lead time for custom molds varies significantly based on complexity, size, and material. For simple molds (e.g., small plastic components), lead time is typically 2–4 weeks. For complex molds (e.g., multi-cavity, hot runner systems, or precision metal stamping molds), it can range from 6–12 weeks or longer. Prototyping molds may have shorter lead times (1–2 weeks) using rapid tooling techniques like 3D printing or CNC machining.
Common mold materials include tool steel (e.g., H13, S136, P20), stainless steel (for corrosion-resistant applications), aluminum (for low-volume production or prototype molds due to its lightweight and fast machining), and copper alloys (for improved heat dissipation). The choice depends on factors like production volume, part material (e.g., plastic, metal), and required mold lifespan.
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