When operating an automatic bottle blowing machine for processing, it is necessary to pay attention to temperature control to ensure the production of suitable plastic bottles.
(1) Automatic bottle blowing machine melting temperature TM: Regarding crystalline polymers, it refers to the temperature at which the three-dimensional remote ordered state of the macromolecular chain structure changes to a disordered viscous flow state, also known as the melting point. It is the lower limit of the molding and processing temperature for crystalline polymers.
(2) Automatic bottle blowing machine glass transition temperature TG: refers to the temperature at which amorphous polymers (including some non crystalline ones in crystalline polymers) change from a glassy state to a highly elastic state or from the latter to the former. It is the lowest temperature at which amorphous polymer polymer polymer chains can move freely, and also the upper limit of the working temperature of the finished product Aluminum plate spot welding machine
(3) Automatic bottle blowing machine inactive temperature: the highest temperature at which no activity occurs under a certain pressure. It is to add a certain amount of plastic into the material cylinder at the upper end of the capillary rheometer mouth mold, heat it to a certain temperature, maintain a constant temperature for 10 minutes, and then apply a constant pressure of 50 MPa. If the material does not flow out of the mouth mold, the temperature of the material should be raised by 10 degrees after unloading the pressure. After holding for 10 minutes, apply the same constant pressure again, and continue this process until the melt flows out of the mouth mold. Reducing this temperature by 10 degrees is the inactive temperature of the material.
(4) Automatic blow molding machine activity temperature TF: refers to the temperature at which amorphous polymers change from a high elastic state to a viscous state. The lower limit of processing temperature for amorphous plastics.
(5) Decomposition temperature TD of automatic bottle blowing machine: refers to the temperature at which polymer molecules in a viscous flow state will degrade more severely when the temperature further increases, reaching the temperature at which the polymer molecules are significantly degraded.
The above is the relevant content of automatic bottle blowing machine, hoping to be helpful to everyone.
