Injection Molding
13 görüntüleme
Unstable mold temperature control in random copolymer polypropylene '2079851475616104452
Sorun Belirtisi
Mold temperature fluctuates greatly during production, with obvious temperature differences between cavities.
Unstable mold temperature causes product dimensional fluctuation, warpage deformation and inconsistent appearance, affecting product quality and production efficiency.
Neden Analizi
(1) The mold temperature controller has insufficient power or water channel flow is inadequate
(2) Mold cooling water channel design is unreasonable, with uneven cooling across areas
(3) Poor cooling water quality; water channels are scaled and clogged, reducing flow
(4) Ambient temperature changes affect mold temperature control accuracy
(5) Cooling time is set improperly, and the mold temperature has not reached equilibrium
Çözüm
(1) Select a mold temperature controller with sufficient power to ensure mold temperature stability within the 40-80°C range
(2) Optimize mold cooling water channels to ensure uniform cooling of all cavities, with pipes symmetrically arranged
(3) Regularly clean cooling water channels, using soft water or adding anti-scaling agents
(4) Install air conditioning in the production environment, controlling room temperature at 20-25°C
(5) Fully preheat the mold after startup, and start formal production after 10-20 shots
Temel Çıkarım
Unstable mold temperature is caused by improper cooling system design or maintenance and needs to be solved from the mold temperature controller, water channel design and maintenance.
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