Flow Lines

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Technical Support

Struggling with a specific casting defect or just need general technical support?

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  • Irregular shallow round or angular grooves that appear on the surface of the casting

  • Indicates that the ceramic shell was built around a defective wax pattern

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Causes of this defect are evident in the wax portion of the process; to cure, R&R recommends taking the following actions:

Wax

Excessive die lubricant, low injection pressure, cold wax, cold die, or poor flow rate.

Adjust the wax parameters to eliminate flow lines, temperature, pressure and flow rate.