Auto Gearbox for Aluminum Die-casting

Model Number: ADC47 Brand Name: OEM&ODM Key Specifications/Special Features: Aluminum die-casting accessory features:1. Process of aluminum die-casting part: die-casting + complete machining + heat treatment + surface treatment2. Aluminum die-casting mold material: 8407, H13, P20 aluminum die-casting mold life: >1,000,000 timesAluminum die-casting mold design: according to drawing or sample3. Aluminum die-casting accessory material: aluminum alloy A380 or as customer's requirements4. Surface treatment of aluminum die-casting part: chrome plating, sandblasting, painting, anodizing, powder coating, electrophoresis5. Standard exporting packing for aluminum die-casting part, such as plywood box, plywood pallet, carton and bubble bags6. Application range of aluminum die-casting parts: auto parts, motorcycle parts, pump parts, locomotive parts, machinery parts and lamp chimney7. Certification of aluminum die-casting: ISO 9001: 2000 standard
Die-casting is similar to permanent mold casting except that the metal is injected into the mold under high pressure of 10-210MPa (1, 450-30, 500) psi
Results in a more uniform part, generally good surface finish and good dimensional accuracy, as good as 0.2% of casting dimensions
For many parts, post-machining can be totally eliminated, or very light machining may be required to bring dimensions to size

Die-casting can be done using a cold chamber or hot chamber process

In a cold chamber process, the molten metal is ladled into the cold chamber for each shot
There is less time exposure of the melt to the plunger walls or the plunger
This is particularly useful for metals such as aluminum, and copper (and its alloys) that alloy easily with Iron at the higher temperature
In a hot chamber process the pressure chamber is connected to the die cavity is immersed permanently in the molten metal
Inlet port of the pressurizing cylinder is uncovered as the plunger moves to the open (unpressurized) position
This allows a new charge of molten metal to fill the cavity and thus can fill the cavity faster than the cold chamber process
Hot chamber process is used for metals of low melting point and high fluidity such as tin, zinc, and lead that tend not to alloy easily with steel at their melt temperature

Die-casting molds (called dies in the industry) tend to be expensive as they are made from hardened steel-also the cycle time for building these tend to be long
Also the stronger and harder metals such as iron and steel cannot be die-cast