Specific Steps of Rubber Hose Extrusion Molding Process

The rubber hose extrusion molding process steps are as follows:

Raw Material Preparation: The compounded rubber (such as EPDM, NBR, etc.) needs to be filtered to remove impurities.

Preheating and Feeding: The rubber compound is preheated to 50-70℃ (depending on the type of rubber) to ensure fluidity.

Extrusion Molding: The tubular preform is extruded through a screw extruder (temperature 80-120℃).

Cooling and Shaping: Water bath cooling (water temperature 20-40℃) or vacuum shaping.

Cutting and Winding: The finished product is cut or wound to length.

Reasons: Preheating and temperature control prevent scorching, and cooling and shaping ensure dimensional stability.