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Transverse thickness tolerance out of tolerance

This problem is a typical manifestation of transverse thickness tolerance out of tolerance in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended...

Extrusion & Post roll surface wearhard impuritiesnatural wearroll surface protectionmetal detection

Calendered film warpage

This problem is a typical manifestation of calendered film warpage in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended to start troubleshootin...

Extrusion & Post internal stresscooling ratedraw ratioannealing treatmentmolecular orientation

Stripper roll material sticking

This problem is a typical manifestation of stripper roll material sticking in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended to start troubl...

Extrusion & Post uneven roll temperatureheat transfer oil channelroll end heat dissipationinfrared temperature measurementtemperature control deviation

Edge trim recycling mixing problem

This problem is a typical manifestation of edge trim recycling mixing problem in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended to start tro...

Extrusion & Post degradation yellowingprocessing temperatureresidence timeheat stabilizerPVC dehydrochlorination

Unstable feeding

This problem is a typical manifestation of unstable feeding in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended to start troubleshooting from ...

Extrusion & Post screen cloggingraw material cleanlinessfiltration mesh countgel particlesautomatic screen changer

Calender bearing problems / unstable roll gap

This problem is a typical manifestation of calender bearing problems / unstable roll gap in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended t...

Extrusion & Post barrel temperatureheater bandthermocouplePID controlsolid state relay

Product stickiness

This problem is a typical manifestation of product stickiness in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended to start troubleshooting fro...

Extrusion & Post winding tensiontaper controlroll diameter compensationspeed synchronizationtension setting

Improper winding tension / poor winding

This problem is a typical manifestation of improper winding tension / poor winding in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended to star...

Extrusion & Post winding tensiontaper controlroll diameter compensationtension PIDpoor winding

Film skewing / deviation

This problem is a typical manifestation of film skewing / deviation in calender molding. The core of the solution lies in precise adjustment of roll gap compensation, uniform control of roll temperature distribution, and assurance of feed system stability. It is recommended to start troubleshooti...

Extrusion & Post winding tensiontaper controlroll diameter compensationspeed synchronizationtension setting

Excessive plastication / scorch

The essence of excessive plastication (scorch) is thermo-oxidative degradation of material at high temperature. The core of the solution is similar to extrusion degradation — "three controls": control banburying and roll temperature not to exceed limits, shorten material residence time in high-te...

Extrusion & Post excessive plastication scorchbanburying temperatureroll temperature too highheat stabilizerresidence time

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