YOSION Machinery Committed to stable performance automatic pet bottle blowing machine production line since 1990s

What are the possible problems of the bottle preform of the blow molding machine?

by:Yosion Machinery     2022-05-02
Possible problems with the bottle preform of the blow molding machine: 1. Appearance (the following bad) black spots, contamination Definition: Unmelted material or impurity bubbles are randomly found on the preform surface Definition: Due to the formation of air or water vapor on the preform wall Irregular bubbles or voids carbonization, black spots Definition: Black and yellow spots are often found near the injection point, or the preform wall; the thermally degraded material enters the mold cavity Color mark Definition: The pigment is not fully stirred on the preform wall Pigment mark Thermal degradation (yellowing of the preform) Definition: The entire preform wall has abnormal yellow scorch color or hollow flash Definition: Part of the preform parting line overflows the raw material injection point. Whitening Definition: Whitening at the injection point of the preform ;Deformation of the bottom of the preform on the outer surface, the inner surface, the whole bottom (internal) Definition: the bottom cavity of the inner wall of the preform (just below the injection point) the deformation of the bottom of the preform (external) Definition: the deformation of the bottom of the preform when the mold is opened; There is often also peeling (scar) at the bottom of the deformed preform at the parting line of the embryo. Definition: The residual material is injected between the needle valve and the 'gate insert'. Definition of uneven wall thickness of bottle preform: The definition of uneven wall thickness on the circumference of the section of bottle embryo: The definition of fusion line: After the two fluids meet, it is impossible to completely fuse into one, forming a tiny joint line. The injection point is long (drawing) Definition: The injection point has excess plastic protrusion (or small wire drawing) the round surface of the bottle mouth is deformed. Definition: The round surface of the bottle mouth is not sufficiently formed. It is often a smooth and smooth depression, and it is definitely not a short shot and lack of material water mist (whitening). Definition: There is often a white cloud-like mist (albino) on the preform wall; Definition: The inner and outer walls of the bottle preform often appear with circular mold lines and large mold closing lines (or mold closing dents). Definition: When the mold is opened, there is a defect in which a circle of dents appear on the movable mold and the fixed mold closing line on the outside of the preform. . Sometimes there is a pinhole (needle valve) in the injection point of the preform gate clamping line. Definition: There is a pinhole in the center of the injection point of the preform, which goes deep into the preform. The company mainly produces automatic blow molding machines.
Yosion Machinery has created a professional team which contained with a numbers of engineers and technology experts.
Yosion Machinery will provide branded products and services of superior quality and value that improve the lives of the world’s consumers.
In a nutshell, is actually an ultimate solution for pet bottle manufacturing machine and underestimating its value cost you higher than anything else. So grab it before you miss the boat.
Custom message
Chat Online
Chat Online
Leave Your Message inputting...