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China Aluminum Casting Radiator Backplate Heatsinks for 5G - Top Suppliers and Factory Solutions
Features
With the rapid development of 5G technology, base stations are crucial to ensure continuous connections and fast data transmission.
The product's exceptional durability is one of its main advantages. The cover is constructed from high-quality aluminum for superior strength and corrosion resistance, ensuring long-lasting performance even in the most demanding conditions.
The aluminum top is not only sturdy but also provides good heat control. Because the material has strong thermal conductivity, it can effectively dissipate heat, minimize overheating, and ensure that the base station operates at maximum efficiency.
Furthermore, the design of the lid is both elegant and functional. It has a sleek, modern style that blends easily into its surroundings, making it ideal for urban environments and public spaces.
Process
1
Aluminum die casting
Process characteristics
800T aluminum die casting machine; ADC12 material
- 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.
Precautions
- a. It is necessary to verify the quality of surface filling. There is no bulging, no cold isolation, and no shortage of materials in the column.
- b. Pay attention to the surface and avoid mold stringing, sticking or insufficient ejector protrusion.
- c. For non-machined surfaces, the ejector pin should be concave 0-0.2mm, while for machined surfaces, the ejector pin should be convex 0-0.2mm.
2
Take out the nozzle (saw nozzle) and pull out the slag bag
Tools
Stick or saw
Things to note
- a. Pay attention to the surface and don't damage it or use insufficient material.
- b. Manage size and appearance.
3
IPQC inspection
Testing instruments
Three-dimensional, appearance visual evaluation, projection, calculator
Precautions
Please take the following precautions: Check dimensions against drawings and use accurate measuring equipment.
4
Dimension Verification
Requirement
Please take the following precautions: Check dimensions against drawings and use accurate measuring equipment.
Note
Within 0.25 mm from the front of the product
5
CNC (Deburring + Full Material Inspection + CNC Processing)
Process Details
a. CNC turning
Process the through hole of the perforation, the end face of the inner cavity and the surrounding heat dissipation tooth surface.
Tools: CNC machine tools, drill bits, tap processing fixtures, flat bottom milling cutters.
b. Burr
To achieve a smooth appearance, the product's sharp corners are chamfered, deburred, and non-machined ejector pins are sharpened and polished.
Equipment: 120# sandpaper, wind mill, file.
c. Appearance visual assessment and 100% material inspection
Process the through hole of the perforation, the end face of the inner cavity and the surrounding heat dissipation tooth surface.
Tools: CNC machine tools, drill bits, tap processing fixtures, flat bottom milling cutters.
b. Burr
To achieve a smooth appearance, the product's sharp corners are chamfered, deburred, and non-machined ejector pins are sharpened and polished.
Equipment: 120# sandpaper, wind mill, file.
c. Appearance visual assessment and 100% material inspection
Note
- a. Avoid excessive cutting or improper processing;
- b. Be careful not to burr or scratch the surface;
- c. Verify that the finish of the machined surface is Ra0.8 and that the size and shape meet the limits.
- d. The R corners should be connected smoothly, no burrs or sharp corners should be removed, and no processing should be missed.
- e. The product surface must be free of burrs, blisters, lack of material and other undesirable features.
- f. Use go gauge and stop gauge to detect.
- g. Verify product flatness against design.
- h. Handle items carefully to avoid deformation.
6
IPQC inspection
Process
Visual inspection of appearance
Status
Inspection completed and verified.
7
Polish (manual removal)
Operation
Product clamp caps, slag bags, gate residues, surface particles, etc. need to be removed.
Requirements
The clamping line should be smoothly connected to other parts without removing sharp edges or corners.
8
IPQC inspection
Process
Visual inspection of appearance
Status
Inspection completed and verified.
9
Regional powder spraying and organizational powder spraying
Test Equipment
Appearance visual inspection combined with colorimeter, film thickness meter, salt spray tester, hundred grid tester, alcohol resistance test, pencil test.
Note
- a. The painted and baked-proof fractal area is clearly visible;
- b. The color is consistent with the sample and the color is uniform;
- c. There is no abnormal color, dirt, exposed bottom, dust accumulation, scratches, etc.
10
IPQC inspection/IQC incoming inspection
Inspection details
IPQC INSPECTION/IQC INCOMING INSPECTION Visual inspection of appearance; inspection of specific quality.
Preventative measures include
- a. Verifying surface condition after powder coating;
- b. Randomly inspect/test holes using a pin gauge or a hole gauge.
11
Full inspection of appearance + packaging
Packaging Details
Thoroughly inspect the goods and packaging.
Consumables: dividers, containers, bubble wrap and desiccant.
Consumables: dividers, containers, bubble wrap and desiccant.
Precautions
- 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.
12
FQC exam
Testing instruments
Calipers, projectors, pin gauges, tooth gauges, visual and packaging inspection are all examples of testing instruments.
NOTE
Verify that the measurement device is still within its calibration window.
13
Transportation
Logistics
Safe transit preparations.
Prepare for a rainy day
- a. Confirm that the quantity matches the order.
- b. Label and stamp the outer box.
- c. Send reports on shipments.
14
OQC shipping inspection
Testing instruments
Testing instruments include calipers, projectors, pin gauges, tooth gauges, outer packaging inspection, etc.
Note
If the measuring device is still within its calibration window. Whether it meets both customer and SIP requirements.
Frequently Asked Questions
What material is used for the base station covers?
We use high-quality ADC12 aluminum material processed with an 800T aluminum die casting machine. This guarantees superior strength, corrosion resistance, and structural integrity.
How does the aluminum cover manage heat dissipation?
Aluminum has excellent thermal conductivity. The design of the top cover effectively dissipates heat from the internal electronics to the outer environment, preventing overheating and ensuring the base station operates at peak efficiency.
What steps are taken to ensure precise dimensions during manufacturing?
We implement multiple IPQC inspections and CNC turning processes. Our quality control teams use high-precision tools such as 3D measuring systems, projectors, pin gauges, and go/stop gauges to verify dimensions against specifications.
What surface treatments and coatings are applied?
The covers undergo regional and organizational powder spraying. We test the quality of the finish using colorimeters, film thickness meters, salt spray testers, and cross-cut (hundred grid) adhesion tests.
How are the base station covers protected during shipping?
Each product is visually inspected, inserted into a protective knife card divider system, wrapped with bubble wrap, and packed with desiccant to prevent corrosion, scratches, or physical damage during transit.