Alpine Mold on Instagram: "🎥 How Does Multi-Stage Holding Pressure Work? In precision injection molding, one single pressure setting often isn’t enough. That’s why we use multi-stage holding pressure — to achieve both perfect filling and dimensional stability. 1️⃣ Stage 1: Low pressure, low speed, short time — to avoid flash and reduce internal stress. 2️⃣ Stage 2: Higher pressure and speed — to make sure every corner is fully packed and dense. 3️⃣ Stage 3: Lower pressure again — to prevent bac
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Alpine Mold on Instagram: "🎥 How Does Multi-Stage Holding Pressur…
24.4K views4 months ago
Instagramalpine_mold
Alpine Mold on Instagram: "What causes ejector stress marks on injection-molded parts? 🔍 These marks show up as bright spots, dull patches, or shadow-like traces right opposite an ejector pin or lifter. They happen when the ejector takes too much force or has excessive clearance, causing vibration and local overheating of the melt. Here’s how to fix it: ✅ Add cooling around the ejector area ✅ Improve machining accuracy of ejector holes ✅ Reduce holding pressure time ✅ Extend cooling time to low
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Alpine Mold on Instagram: "What causes ejector stress marks on inj…
7.7K views4 months ago
Instagramalpine_mold
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