China OEM Suppliers Factory for A383 Aluminum Electrophoresis Die Casting Heat Radiator Backplate

• Confirm the filling quality of the surface. No cold insulation, no bulging, or lack of material for the pillars.
• Pay attention to the surface to avoid sticking molds, drawing molds, or poor ejector pin convexity.
• The ejector pins are concave by 0-0.2mm for non-machine-added surfaces and 0-0.2mm for machine-added surfaces. The thimble needs to be convex 0-0.2mm.

• Pay attention to the surface and don't damage it or use insufficient material.
• Manage size and appearance.

Please take the following precautions: Check dimensions against drawings and use accurate measuring equipment.

Do not miss machining, ensure no sharp corners, keep burr removal clean, and ensure mold line connection is smooth.

• Do not overcut or miss processing.
• Surface attention must not be bruised, and free of burrs.
• Ensure that the surface finish is Ra0.8, and maintain size, shape, and location tolerances.

Spray the inner cavity surface first, and then spray the heat dissipation tooth surface; pay attention to the large plane on the heat dissipation tooth surface after sandblasting does not allow scratches, leakage of spraying, or cold lines!

Backside plane within 0.15mm.

• The coloring area must be obvious, without different color, dirt, exposed bottom, accumulated paint, bubbles, touching and scratching.
• Color according to the sample, uniform and consistent.

• Confirmation of surface quality after electrophoresis.
• Go-no go fixed gauges inspection, tooth hole through stop gauge detection.

• The surface should not be overcut, sand holes, or lack material. Burrs and other undesirable phenomena are prohibited.
• GO - NO GO FIXED GAUGES inspection.
• Test the flatness of the product according to the drawing.
• Hold the product lightly to prevent deformation.

Backside plane within 0.2mm.

• The electrophoresis surface must be free of different color, dirt, exposed bottom, accumulated paint, bubbles, touching and scratching.
• The color must be uniform and consistent according to the sample.
• The through-hole should be in accordance with the inspection of through-hole gauge.
• The product is put into the knife card, and the upper layer is covered with flat cardboard and then packed into boxes.

Verify whether the measuring tool is within the calibration period.

• Confirm that the quantity matches the order.
• Label and stamp the outer box.
• Provide a shipping report.

Verify if the measuring device is still within its calibration window. Ensure it meets both customer and SIP requirements.