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Changshu smoothly da plastic products factory about how to improve the bending deformation of PVC plastic profile
by：CSSSLD
2021-02-03
PVC plastic profile bending deformation is a common problem in the process of extrusion, the main reasons are: mold discharging mouth is not uniform;
After cooling to finalize the design, materials insufficient cooling, shrinkage is inconsistent;
Equipment and other factors.
Below well da plastic products factory in changshu shows you how to improve the bending deformation of PVC plastic profile!
extruder across the concentricity and levelness is prerequisite to solve the PVC profile bending deformation, therefore, every time response to mould replacement extruder, die, finalize the design mode, the concentricity and levelness of correction of water tank, etc. Among them, the evenness of mold discharging mouth is the key to solve the bending of PVC plastic profile, should be carefully before starting the assembly module, each part clearance should agree, if found uneven mold discharging mouth when the phone is switched on, should be based on the parison bending deformation direction, corresponding to adjust the mold temperature, such as adjusting the invalid, should improve the plasticizing degree of material appropriately.
adjustment to adjust stock mould auxiliary vacuum degree and the cooling system is the essential means to solve the deformation of PVC profiles, should increase the cooling water on one side of the material under tensile stress; Adopt the method of mechanical shift center adjustment, the production, the middle of the side to adjust stock mould positioning bolt, on the basis of profile bending direction reverse trace adjustment ( The law should be careful when using, and adjust the volume shoulds not be too big) 。 Pay attention to the maintenance of the mould is a good preventive measures, should pay close attention to quality of mould work, according to the actual situation at any time to mold maintenance and maintenance.
by taking these measures can eliminate the PVC plastic profile bending deformation, ensure the stable and normal extruder to produce high quality PVC plastic material.
extruder across the concentricity and levelness is prerequisite to solve the PVC profile bending deformation, therefore, every time response to mould replacement extruder, die, finalize the design mode, the concentricity and levelness of correction of water tank, etc. Among them, the evenness of mold discharging mouth is the key to solve the bending of PVC plastic profile, should be carefully before starting the assembly module, each part clearance should agree, if found uneven mold discharging mouth when the phone is switched on, should be based on the parison bending deformation direction, corresponding to adjust the mold temperature, such as adjusting the invalid, should improve the plasticizing degree of material appropriately.
adjustment to adjust stock mould auxiliary vacuum degree and the cooling system is the essential means to solve the deformation of PVC profiles, should increase the cooling water on one side of the material under tensile stress; Adopt the method of mechanical shift center adjustment, the production, the middle of the side to adjust stock mould positioning bolt, on the basis of profile bending direction reverse trace adjustment ( The law should be careful when using, and adjust the volume shoulds not be too big) 。 Pay attention to the maintenance of the mould is a good preventive measures, should pay close attention to quality of mould work, according to the actual situation at any time to mold maintenance and maintenance.
by taking these measures can eliminate the PVC plastic profile bending deformation, ensure the stable and normal extruder to produce high quality PVC plastic material.
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