For those who often use blown film machines, I believe […]
For those who often use blown film machines, I believe that the blown film machine is no stranger, but one of the problems that blower machine operators feel hateful is the temperature range of blown film blown film control. The most suitable, in fact, the temperature of the blown film blown film may directly or indirectly lead to the quality of the blown film blown film, so how much should it be controlled?
In fact, the film blowing machine uses a high temperature to blow the film, there is no fixed temperature. The reason is actually very simple, that is, the temperature used when the film blowing machine blows the film is related to the following aspects:
1. Different raw materials result in different temperature requirements.
2. The influence of the temperature of the blown film environment on the film blowing temperature of the film blowing machine.
First of all, let's talk about the different materials used in the blown film machine, and what are the different effects on the temperature used when blowing the film blower?
The difference in raw materials mainly means that the formulation and properties of the blown film raw material particles of the blown film machine are different.
Different formulas mean that different types of plastic blown film pellets have different temperature requirements, so it is necessary to consider the temperature of the raw materials used in the blown film.
Different particle properties mean that the distinction between high and low pressure particles is different. For example, low pressure particles require higher blown film temperature than high pressure particle blown film. Taking the convenience bag blowing machine as an example, when the bag is blown, the low pressure particles are generally used, and the temperature of the film blowing machine is generally between 180 degrees Celsius and 230 degrees Celsius.
Secondly, the ambient temperature at which the film blowing machine is placed also has different requirements for the temperature required to heat the film blowing machine. For example, in Hebei, Henan, Shandong, Shanxi, Shaanxi and other regions, the temperature of blown film blowers is lower than that of Inner Mongolia, Jilin, Liaoning, and Heilongjiang.