Causes and countermeasures of glue leakage

Jan. 01, 70

Abnormal Injection Molding: Causes and Countermeasures of Glue Leakage

Causes of glue leakage: (1) Improper adjustment of the equipment, the toggle of the clamping machine is too far behind, and the pressure of the cavity is too high when the glue is injected to maintain pressure, which will open the mold and cause glue leakage. In this case, the machine needs to be adjusted; (2) Mold problems are usually caused by gaps caused by improper assembly of a certain insert.

270-注塑漏胶的成因及对策

Summary of causes and countermeasures of glue leakage:

Product defect	Cause	Countermeasure
Leaking glue	1. The nozzle and the mold nozzle are out of focus	Re-align the mouth or check whether the nozzle head is smooth
	2. The nozzle is larger than the mold nozzle	Change to small hole nozzle
	3. The spherical surface of the nozzle or mold nozzle is damaged	Processing nozzle or mold nozzle spherical surface
	4. The back pressure is too large or the screw speed is too high	Reduce back pressure or screw speed