Precision valve needle type internal spring nozzle, used for liquid silicone, thermoplastic and other materials that require injection molding, can prevent low viscosity melt from overflowing from the nozzle during injection intervals. Mainly used for: (1) forming low viscosity materials; (2) High speed forming process; (3) High back pressure adhesive melting process.
Main advantages:
(1) Prevent glue overflow, injection drawing, casting, overflow, cold glue, leakage, etc. during injection molding, improve product quality, and reduce defective products.
(2) Improving injection molding speed can melt adhesive under high back pressure, shorten molding cycle, and improve production efficiency.
(3) The pre tightening force of the spring can be adjusted according to the back pressure of the adhesive, ensuring no leakage and reducing injection pressure loss.
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