2022.09.09
Obviously, various raw materials have different foaming ratios and foaming speeds. Moreover, different raw materials have different foaming ratios and foaming speeds. Moreover, various types of pre-expansion machines can control the foaming ratio by adjusting various parameters.
Taking the continuous pre-expansion machine as an example, under the condition of a certain body volume and steam volume, we can control the pre-expansion capacity of EPS by adjusting the feeding speed or adjusting the height of the discharge port.
Intermittent pre-feeding machine means that after the machine throws the EPS material once, after the material is pre-released to a certain volume, the material in the machine is discharged and blown clean. Re-feeding, pre-dispatching, discharging… and so on. Since each batch of materials is quantified, the pre-release volume of each batch of materials is also quantified, so that the pre-released bulk density will be guaranteed.
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