How should we pay attention to the hollow bottle blowing machine in the production of the temperature? In the operation of hollow blow molding machine for processing, it is necessary to pay attention to some temperature control to ensure that the production of plastic bottles.

First, the melting temperature TM: for the crystalline polymer, refers to the large molecular chain structure of three-dimensional remote ordered state transition into disordered viscous flow, also known as melting point. The lower limit of the temperature of the crystalline polymer molding process.

Two, the glass temperature TG: refers to amorphous polymers (including non crystalline part of the crystalline polymer) from the glass state to the high elastic state or by the latter to move forward the transition temperature. It is the lowest temperature of the free movement of the macromolecular chain segment of the amorphous polymer, and also the upper limit of the working temperature of the product.

Three, no flow temperature: under a certain pressure, the maximum temperature does not occur. Full automatic bottle blowing machine
Add a certain amount of plastic, capillary rheometer die is arranged at the upper end of the barrel, heated to a certain temperature, thermostatic refresher 10min after applied 50MPa constant pressure, if the material is not from the die out, after unloading, the material temperature rise by 10 degrees of difficulty, holding for 10min, and then applied the constant pressure of the same size, and so on until the melt from the die out of date, the temperature is less 10 degrees is the no flow temperature.

Four, flow temperature TF: refers to the amorphous polymer by the high elastic state into the viscous flow temperature. Is the lower limit of the processing temperature of amorphous plastics.

Five, decomposition temperature TD: refers to the polymer in the viscous flow when the temperature is further increased, it will cause the degradation of molecular chain increased, the temperature of the polymer chain is significantly degraded when the decomposition temperature.

The above five points is us on how to pay attention to the summary of the hollow bottle blowing machine in the production of temperature, but it is not just the five, which requires us in daily work will continue to sum up experience, in order to to find its problems.

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