China ADC12 Die Casting Enclosure for 5G AAU Base Station - Top Suppliers & Factory Quality Solutions
Equipment: 400T aluminum die casting machine
Material: ADC12
Process Characteristics:
- Furnace temperature: 670°±20°, Material handle: 20±2MM
- Secondary materials cannot be used
- Test material composition to confirm suitability before production
- First piece confirmation is required after die-casting
b. Avoid sticking molds, drawing molds, or poor ejector pin convexity.
c. Ejector pins must be concave by 0-0.2mm for non-machined surfaces and 0-0.2mm for machined surfaces. Thimble needs to be convex by 0-0.2mm.
Saw spout and knock out slag bag.
Equipment: Sawing machine
Tools: Wooden stick
b. Control the size and appearance.
Check dimensions according to technical drawings.
Test Tools: Caliper / Projection / Three-dimensional
Product back shaping.
Equipment: Knife-edge ruler, shaping fixture
a. CNC machining (Process the end face of the inner cavity, the end face of the surrounding heat dissipation tooth surface, and the through holes of the tooth holes).
b. Deburring (Chamfer sharp corners, remove burrs, sharpen non-machined ejector pins, and polish smooth).
c. 100% inspection.
Equipment & Tools: CNC machine, flat-bottomed cutter, drill bit, tap processing fixture, file, wind grinder, 120# sandpaper
b. Ensure processed surface finish is Ra 0.8; control size and shape tolerances.
c. Inspection by go/no-go gauge.
d. Check product flatness according to drawing.
e. Handle gently to prevent deformation.
Remove product clamping line caps, surface particles, slag bags, and gate residues.
b. Maintain surface finish of Ra 0.8, controlling size and shape tolerances.
c. Inspect using go/no-go gauges.
d. Verify flatness according to drawing.
e. Handle gently to avoid deformation.
Powder spraying + Oil Spraying (Two-color spraying in separate areas).
Test Tools: Visual inspection, film thickness meter, colorimeter, salt spray tester, hundred grid test tool, alcohol resistance test, pencil test
b. Color must be fully consistent with the approved sample.
Quality check on incoming parts and processed surfaces.
b. Randomly inspect holes using needle gauges and go/no-go gauges.
a. 100% inspect the appearance of the powder-coated surface.
b. Conduct random performance testing on the powder coating.
2. Color must be consistent and uniform according to the sample.
Dispense adhesive to the specified bar area. Dispensing width and height: 1.0±0.1mm symmetrically centered.
Tools: Dispensing machine, dispensing fixture
2. Ensure proper curing and adhesion strength.
a. Place heat dissipation copper bar in the corresponding dispensing slot position for glue assembly.
b. Lock sheet metal parts using M2.5*5 screws to press the heat dissipation copper block.
Parts List:
- SE4450 Glue
- 4x Heatsink Copper Bars
- 3x Sheet metal parts
- 6x M2.5*5 half-round screws
b. Ensure screws are locked stably without loosening or slipping teeth.
Place products in 2 columns and 7 rows (total 14pcs) neatly on the baking line.
Baking Temp: 150℃
Time: 30 minutes
Equipment: Dryer
Comprehensive inspection of the finalized product before packaging.
b. Tooth pattern must comply with go/no-go gauges.
c. Place the product in the knife card, cover with flat cardboard on the upper layer, and package.
Final Quality Control check.
Test Tools: Caliper, projection, needle gauge, tooth gauge, appearance and outer packaging inspection
Preparation for final dispatch.
b. Apply label and stamp on the outer box.
c. Provide shipping report.
Outgoing Quality Control checks.
Test Tools: Caliper, projection, needle gauge, tooth gauge, appearance and outer packaging inspection