Key specifications/special features
 
Made of aluminum alloy (A360, A380, ADC12 and more)
Good surface finish
Accurate dimensions
Sand blasted, CNC machining available
SGS certificate available
Design and production as per customer's requirement
We can make assembly products
Short delivery time for both samples and after orders
First article layouts and spectrometer material certifications are provided with all first article samples
Normally packed with plywood box, special packaging requirements accepted
C&F, CIF or DDP terms accepted
 
Process descriptions:
 
Die casting is the process where molten metal is injected into a mold under high pressure in the range of 10 - 210MPa. This will result in a highly uniform casting with very good surface finish and exceptional dimensional accuracy. Usually, this can either eliminate or greatly reduce the machining required to finish the part
We can offer both the cold chamber process and the hot chamber process.
In the cold chamber process, the metal is ladled into the injection chamber for each shot.
There is less exposure of the molten metal to the chamber walls and plunger
This is very useful for aluminum and copper alloys that would easily alloy with iron at elevated temperatures.
The hot chamber process has the injection chamber which is connected to the die cavity permanently immersed in the molten metal.
The hot chamber process is used for metals of low melting point and high fluidity such as tin and zinc.
 
The materials that Dongrun Casting offers are alloys of aluminum, copper, zinc and magnesium
Zinc castings can be made with thinner wall thickness than aluminum due to high melt fluidity

We can produce parts from very small to about 30kg for aluminum, 10kg for magnesium, 50kg for zinc and 5kg for copper.

 
Minimum wall thickness and draft angles for die castings are as follows: