The following is a brief introduction to the case of die-casting non-ferrous metals:
1) Classification of die-casting non-ferrous alloys shrinkage:
Lead alloy: 0.2-0.3%, 0.3-0.4%, 0.4-0.5%,
Low-melting alloy, tin alloy, zinc alloy: 0.3 -0.4% 0.4-0.6% 0.6-0.8% Aluminum-silicon: 0.3-0.5% 0.5-0.7% 0.7-0.9%
Die-casting non-ferrous alloy aluminum alloy copper-copper-magnesium: 0.5-0.7% 0.7-0.9% 0.9-1.1%
High melting point alloy aluminum-zinc-based magnesium alloy: 0.5-0.7% 0.7-0.9% 0.9-1.1%
2) Recommended casting temperature for various die-casting alloys Alloy type:
Average wall thickness of castings ≤ 3mm
Aluminum alloy Aluminum silicon: 610-650°C 640-680°C 600-620°C 610-650°C
Aluminum and copper: 630-660°C 660-700°C 600-640°C 630-660°C
Aluminum-magnesium: 640-680°C 660-700°C 640-670°C 650-690°C
Aluminum zinc system: 590-620°C 620-660°C 580-620°C 600-650°C
Zinc alloy: 420-440°C 430-450°C 400-420°C 420-440°C
Magnesium alloy: 640-680°C 660-700°C 640-670°C 650-690°C
Copper alloy Ordinary brass: 910-930°C 940-980°C 900-930°C 900-950°C