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Changshu smoothly da plastic products factory talk about plastic extrusion die four of the paste
by：CSSSLD
2021-01-23
Plastic extrusion mold production molding products sometimes leave some yellow line, the reasons for the formation of the yellow line only one, is the surface of the duct flow in a plastic injection mould machine some residual decomposition material, which is what we call a paste.
Changshu well below da plastic products factory talk about plastic extrusion die in the four reasons for the formation of paste.
the first is a flow channel surface is not clean. Before extrusion mould machine production and processing, deal with clear plastic extrusion die in polishing of the surface of the flow channel, otherwise the remaining on the surface of the melt flow on the flow when stuff together, the two baidu's high temperature can make the fluid in a few minutes paste form we see the yellow line.
the second kind is a plastic injection mould machine temperature is too high. Under the condition of artificial or distortion of the temperature control system, make the injection mould machine in the production of temperature is exorbitant, can produce the yellow line, the solution can not only polishing surface of flow channel, to gradually reduce the temperature of the plastic injection mould.
the third one is plastic material formula materials are not compatible. Raw materials if put into the plastic injection mould machine for processing the environment cannot be compatible, can make the melt rheological ability is low, making plastic material degradation of raw material paste form yellow line, which requires the plastic material on the formulation of raw materials to find the reason.
the fourth kind is screw barrel screw residues. Not just flow surface will form a paste, plastic extrusion mould machine screw barrel and screw will remain some paste, only by polishing cleaning flow surface is unable to get rid of this problem, must to plastic injection mould machine to clean.
the first is a flow channel surface is not clean. Before extrusion mould machine production and processing, deal with clear plastic extrusion die in polishing of the surface of the flow channel, otherwise the remaining on the surface of the melt flow on the flow when stuff together, the two baidu's high temperature can make the fluid in a few minutes paste form we see the yellow line.
the second kind is a plastic injection mould machine temperature is too high. Under the condition of artificial or distortion of the temperature control system, make the injection mould machine in the production of temperature is exorbitant, can produce the yellow line, the solution can not only polishing surface of flow channel, to gradually reduce the temperature of the plastic injection mould.
the third one is plastic material formula materials are not compatible. Raw materials if put into the plastic injection mould machine for processing the environment cannot be compatible, can make the melt rheological ability is low, making plastic material degradation of raw material paste form yellow line, which requires the plastic material on the formulation of raw materials to find the reason.
the fourth kind is screw barrel screw residues. Not just flow surface will form a paste, plastic extrusion mould machine screw barrel and screw will remain some paste, only by polishing cleaning flow surface is unable to get rid of this problem, must to plastic injection mould machine to clean.
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