Flow Lines
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
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Indicates that the ceramic shell was built around a defective wax pattern
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.