Injection Molding
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Insufficient Flow Length Ratio in CMC '2079851475616104452
Problem Phenomenon
CMC '2079851475616104452 flow length ratio is only 80-100, lower than 150, and thin-walled products cannot be filled
Cause Analysis
CMC melt viscosity is high and flow distance is short; injection temperature is low; injection pressure is insufficient; mold runner resistance is large
Solution
1)Increase injection temperature to 20-25°C; 2)Increase injection pressure 80-100MPa; 3)Enlarge runner and gate sizes to reduce resistance; 4)Add 0.3-0.5wt% flow aid to reduce viscosity
Key Takeaway
Insufficient flow length ratio is caused by CMC high viscosity; high temperature, high pressure and large gate are the key
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