Dongguan Yurun Hardware Products Co., Ltd

Dongguan Yurun Hardware Products Co., Ltd

Core advantages and disadvantages of high-pressure die-casting process

2026 06/09

core strengths
 
Extremely high production efficiency and low unit cost: fully automatic cycle, single machine daily production can produce tens of thousands of pieces, and the cost-effectiveness of large-scale production far exceeds machining and sand casting;
 
Strong molding ability: capable of forming complex curved surfaces, buckles, reinforcing ribs, and micro threads in one piece, with a minimum wall thickness of 0.5mm, reducing the assembly process of parts;
 
High dimensional accuracy and smooth surface: tolerance can reach IT10~IT11, surface does not require polishing, can be directly sprayed or anodized;
 
High material utilization rate: The flow channel and material cake can be remelted in the furnace, with a material utilization rate of 85%~95%, far higher than CNC cutting processing;
 
Excellent comprehensive mechanical properties: high pressure dense structure, high strength and hardness, lightweight while meeting structural load-bearing requirements.
 
Inherent shortcomings
 
High initial investment: Die casting molds and large die casting machines are expensive and only suitable for large-scale production, with high single piece costs for small batches;
 
Easy to produce trace pores: High speed filling is prone to air entrapment, and ordinary die-casting parts cannot be welded at high temperatures; Vacuum die casting can significantly improve;
 
Material limitations: Only suitable for low melting point non-ferrous metals such as aluminum, zinc, magnesium, etc., unable to process steel and cast iron.
 
Aluminum Die Casting
 
Mainstream application scenarios of die-casting
 
New energy vehicles: battery pack housing, motor end cover, electronic control housing, water-cooled heat dissipation chamber;
 
3C Electronics: Laptop frame, phone case, charger case, connector base;
 
Home appliance industry: air conditioning motor cases, washing machine weights, TV stands, kitchenware hardware;
 
General hardware: zinc alloy door lock accessories, bathroom hardware, small decorative shells;
 
Industrial equipment: gearbox housing, hydraulic valve body, instrument housing.