Mold for Magnesium Die Casting
Magnesium alloy features:
Extremely low weight
High specific strength
Excellent shock absorption
Good electromagnetic shielding
Easy for cutting and machining
Excellent die-casting fluidity
Core features of die-casting Magnesium Mold:
Strong resistance to high temperature and oxidation
Excellent corrosion and erosion resistance
High toughness and anti-cracking performance
Fast heat conduction and stable mold temperature
High wear and erosion resistance
Smooth demolding and anti-sticking property

What are the properties of Magnesium?
- The lightest among industrial structural metals
- Excellent natural shock absorption and damping property
- Superior electromagnetic shielding performance
- Extremely easy for cutting and machining
- Excellent fluidity for thin-wall and complex casting
- High biodegradability and biocompatibility
Technologies of Molds for Magnesium
- Strict selection of die steel material
- Reinforced surface nitriding treatment
- Precise and strict mold temperature control
- Denser and optimized cooling water channels
- Enlarged and deepened exhaust system
- High polishing for cavity and demolding structure

Correspondence of Magnesium Alloy Grades in Different Regions
Key Mold Points for Different Grades of Die-Casting Magnesium Alloys
General structural magnesium alloy AZ91D
Mold steel: Conventional H13, SKD61 hot work steel are applicable.
Key points: Standard nitriding, regular water cooling and venting; focus on anti-sticking and slight corrosion protection.
High-toughness load-bearing grade AM60B / AM50A
Mold steel: High-toughness hot work die steel with moderate quenched and tempered hardness.
Key points: Improve mold impact resistance and crack resistance; strengthen mold frame rigidity to reduce deformation.
High-strength heat-resistant grade AS41B / AS21
Mold steel: Special hot work steel with high heat resistance and thermal fatigue resistance.
Key points: Dense cooling water channels, strict mold temperature control, deep nitriding to resist high-temperature erosion.
Thin-wall precision high-end die-casting magnesium alloy
Mold steel: Mirror-grade die steel for high polishing.
Key points: Mirror cavity polishing, enlarged exhaust structure, optimized runner design for ultra-thin filling.
Special high corrosion-resistant magnesium alloy
Mold steel: Special die steel with high resistance to corrosion and molten metal erosion.
Key points: Strengthen surface anti-corrosion treatment, deepen nitriding layer, strictly control smelting to avoid oxidation erosion.
Semi-solid forming magnesium alloy billet
Mold steel: High wear-resistant and high pressure-resistant die steel.
Key points: Higher cavity precision, optimized draft angle; resist high-pressure injection and surface dragging marks.
Application Fields and Typical Products of Magnesium Alloy
Aerospace Industry
Typical Products: Aerospace structural brackets, aircraft shells, satellite precision parts, landing gear components.
Automotive Transportation
Typical Products: Car instrument panel frame, gearbox housing, steering wheel frame, door structural parts.
3C Electronics Industry
Typical Products: Laptop housing, mobile phone middle frame, tablet bracket, power bank shell.
Rail Transit Industry
Typical Products: Train interior components, seat frames, carriage precision fittings, lightweight structural parts.
Military Equipment Industry
Typical Products: Military precision housings, firearm parts, individual equipment brackets, communication instrument shells.
Medical Device Industry
Typical Products: Medical equipment brackets, rehabilitation device components, portable instrument shells, medical lightweight fittings.
New Energy Industry
Typical Products: New energy vehicle motor housing, energy storage equipment frame, photovoltaic lightweight bracket, battery box fittings.
Hardware & Tool Industry
Typical Products: Power tool housing, garden equipment body, tool handles, precision hardware die-cast parts.
Daily & Leisure Industry
Typical Products: Bicycle frame, outdoor sports equipment, luggage frame, high-end furniture fittings.
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