EPE Foam Sheet Making Machine Complete Start-up Process / China Manufacturer [2020]
If you make thin sheets such as 0.5mm-thick sheets, the sheet cracks, check the following:
1. The first possible reason might be that the epe foam making machine temperature is low. You can increase the temperature of die head and screen changer according to the product condition.
2. If the epe foam extrusion machine's temperature is very high, but the sheet still cracks, it might be that the quantity of filtering mesh is not enough. You can try using 3-4 pieces of filter mesh of 200 mesh or 250 mesh.
3. The third possible reason might be that the die mouth is blocked by impurities. You can try loosen the die mouth to let the impurities pass and then tighten it immediately.
If you make thick sheets with a big model epe foam sheet machine such as 200 or 220 model epe foam extruder the sheet cracks, check the following:
The temperature of plasticizing part is not high enough. Then it will cause that materials are not melted well. Those materials which are not melted might block the mould.
There might be dirty things in the place of filtering plate. So it will block the die mould. Then you have to change the filter mesh.
Filter mesh is not suitable. For example, if you make 5mm-thick sheets but use a 40-mesh filter screen, then it is not suitable. You have to change to 1 layer or 2 layers of 60-mesh filter screen.
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