For PVC plastic extrusion production lines, feeding method selection depends on material form and process requirements. Three common systems are compared: spring feeders (quick to clean, suitable for frequent color changes but poor with high-filler powders), screw feeders (high flow rate and anti-bridging, ideal for high-filler powders but not for fiber-reinforced materials), and vacuum feeders (dust-free and closed-loop, best for cleanrooms and fiber reinforcement but limited at high output).
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Most screw breakages are caused by the reasons mentioned above. Regular inspection of the gearbox, ensuring adequate heating temperature, avoiding material interruptions, strictly following formulas, and preventing foreign objects in raw materials can effectively reduce the risk of screw breakage.
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This article cautions against pursuing excessively short injection molding cycles (e.g., 2.8 seconds), outlining 20 improper high-speed practices and their consequences. It covers material degradation, gas entrapment, mold and machine component fatigue, hydraulic system damage, and mechanical failures, emphasizing that aggressive cycle reduction compromises part quality and equipment reliability rather than yielding genuine efficiency gains.
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On this National Day, Ningbo Superior Machinery extends our warmest wishes to clients, partners, and colleagues around the world.We grow with our nation, and we move forward because of you.May our country prosper, and may our partnerships stay green and lasting.Happy National Day!
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