Why do PVC screws usually use a mild compression design?
The PVC thermal stabilization window is narrower, plasticization relies on controlled shearing and external heating, and local overheating can cause decomposition. From the princip…
A systematic guide to injection screw structure, compression ratio, L/D ratio, material selection, wear mechanisms and screw selection.

The PVC thermal stabilization window is narrower, plasticization relies on controlled shearing and external heating, and local overheating can cause decomposition. From the princip…

The viscosity and volume state changes are evident when the crystallization material approaches the melting point, and there is a need to ensure continuous advancement of the melti…

There are no clear melting points for non-crystal materials, softification and viscosity declines in the wider temperature zone, and the compression process should remain smooth. T…

The high compression ratio significantly reduces the snail volume at a shorter distance, which enhances pressure, membrane renewal and shearing. The cost of increasing melting capa…

Medium compression ratios typically combine process windows with particle pressure, exhaust, melting and wider. The working principles, selection conditions, common risks and valid…

Low compression reduces the risk of local pressure, cutting and overheating by smoothing changes in solid bed size. The working principles, selection conditions, common risk and va…

The common compression ratio is calculated on the basis of the transport segment in relation to the depth or volume of the measuring section screws and must be clearly defined. The…

A longer stream means a larger area of exposure and a potential amount of material, with a structural downside having a direct impact on change efficiency. From the principles of w…

Increases in long-range relative to the size of systems involving the total length of a screw drum, heating area, shield, nozzle centre and radio station travel. The working princi…

The increase in length will magnify the turning angles and scratches under the same twists, with higher requirements for medium, dynamic responses and fatigue. From the working pri…
According to the resin material, filling ratio, equipment model and product requirements, select a more suitable screw and barrel solution.