China Aluminum Casting CNC Machining Heatsink Prototyping - Leading Suppliers and Factory for Custom Solutions
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Aluminum Die Casting CNC Machining Heat Sink
Features
Our heat sinks are widely used in communications, machinery, automobiles, wind power generation, engineering machinery, air compressors, railway locomotives, household appliances and other fields. Our target customers include mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, Singapore and other regions.
a. Light weight
Our radiators are made of innovative aluminum alloy, which is much lighter than traditional radiators.
b. Strong corrosion resistance
Our radiators are made of aluminum and zinc alloy, ensuring a long service life even under wear and tear conditions.
c. High temperature resistance
We pay great attention when designing the radiator so that it can withstand high temperatures without losing functionality.
d. Optimum heat dissipation
Our radiator’s superior heat dissipation capability is its main selling point.
Process
Aluminum die casting
Contents: ADC12
Process characteristics:
- a. The furnace temperature is 670°±20°, and the material handle is 20±2 mm.
- b. It is impossible to utilize secondary materials.
- c. Material composition must be tested to ensure it is suitable for production.
- d. After die casting, the first piece must be confirmed.
- a. It is necessary to verify the filling quality of the surface. It’s not the bulge, it’s not the cold insulation, it’s not the lack of material in the pillars.
- b. Pay attention to the surface to prevent poor ejector pin crown, mold pulling or mold sticking.
- c. For non-machined surfaces and machined surfaces, the ejector pins are concave by 0-0.2 mm. The convexity of the ejector pin must be 0-0.2 mm.
Take out the nozzle (saw nozzle) and pull out the slag bag
- a. Pay attention to the surface and don't damage it or use insufficient material.
- b. Manage size and appearance.
IPQC inspection
Shape Product front shape
IPQC inspection
Shape the back of the product
Tapping and drilling
IPQC INSPECTION Visual inspection
Chemical conversion film for cleaning and leather coating
100% visual inspection (appearance) before powder coating
Consumables: dividers, containers, bubble wrap and desiccant.
- a. Appearance needs to be checked based on samples. There should be no dents, scratches or other blemishes on the surface and the glue application should be smooth and flawless!
- b. The pass and stop inspection requirements of the tooth profile must be met.
- c. After the product is inserted into the knife card, the top layer is covered with a flat cardboard and wrapped.
FQC exam
Shipping notes
- a. Confirm that the amount matches the order.
- b. Label and stamp the outer box.
- c. Send reports on shipments.
Qualified transportation inspection
OQC shipment inspection
Frequently Asked Questions (FAQ)
QWhat industries are these aluminum die-cast radiators used in?
They are widely used in communication, machinery, automobiles, wind power generation, engineering machinery, air compressors, railway locomotives, household appliances, and other fields.
QWhat regions do you distribute these heat sinks to?
We focus on mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, Singapore, and other global regions.
QWhat are the main material benefits of these radiators?
They are made of innovative aluminum and zinc alloys, offering lightweight construction, strong corrosion resistance, high temperature resistance, and optimum heat dissipation performance.
QWhat quality control steps are taken during the production process?
We implement strict quality checkpoints including IPQC inspections at multiple stages (post-die casting, shape alterations, tapping), 100% visual inspection before powder coating, FQC examinations, and final OQC shipment inspections.
QWhat tools are used for dimension and quality testing?
Testing instruments include calipers, projectors, 3D measurements, pin gauges, tooth gauges, height gauges, and visual inspection tools to guarantee alignment with drawings and SIP requirements.
QWhat are the specifications for the aluminum die casting step?
The process utilizes a 300-ton die-casting aluminum machine and ADC12 material. The furnace temperature is maintained at 670°±20° with a material handle of 20±2 mm, utilizing no secondary materials.






