Sheet Metal ProcessingChassis CabinetThe inspection standards usually cover multiple aspects to ensure quality, performance, and safety. Below is a detailed inspection standard for chassis cabinets:

1. Appearance Inspection

1. Overall AppearanceThe chassis cabinet should be flat, without deformation, shiny, and free from obvious scratches, oxidation, wrinkles, spots, missed spraying, rust, and other issues.
2. Parts and ComponentsThe processing accuracy must meet standard requirements, ensuring that each component fits for assembly and disassembly and fully meets design requirements.
3. Weld PointsThey should be tight, with no obvious oxidation. The weld seams should be uniform, smooth, clearly visible, and free from defects such as weld spatter, cracks, and dents.
4. Color and ThicknessThey should match the paint and materials used and comply with standard requirements.

2. Size and Tolerance Inspection

1. External DimensionsUse tools such as tape measures to measure the external dimensions of the cabinet, including width, depth, etc., to ensure compliance with design requirements and relevant standards.
2. Diagonal DimensionsMeasure the diagonal lengths of the front and rear door panels and the left and right side panels. The difference in diagonal length should be within the specified range (e.g., ≤2mm).
3. Gap ValuesMeasure the same gap or parallel gap between doors and between doors and frames. They should be uniform and meet the limit deviation requirements.

3. Structure and Stability Inspection

1. Column Strength and RigidityThe columns of the chassis cabinet should have sufficient strength and rigidity to ensure stability and durability.
2. Fastener ConnectionsAll fasteners should be reliably connected and meet relevant torque requirements. Looseness, stripping, and other adverse phenomena are not allowed.
3. Moving PartsThe moving parts of the cabinet should be mechanically connected firmly and reliably, and the connectors and fasteners should not be loose or fall off.
4. Fixed PartsAll non-dismantled positions should be fastened with standard torque, and there should be no looseness or obvious gaps at the connections.

4. Function and Performance Inspection

1. Heat Dissipation PerformanceCheck whether the chassis has sufficient heat dissipation holes and fans, and whether the design of the heat dissipation system is reasonable. At the same time, test whether the heat dissipation effect of the chassis meets the requirements.
2. CompatibilityCheck whether the space in the chassis is sufficient to accommodate various components of the server, such as the motherboard, hard disk, power supply, etc.
3. SafetyIncludes inspection of locking mechanisms and anti-theft designs. The door lock should operate smoothly, with no jamming during key insertion and rotation.
4. Shock Resistance PerformanceThe server chassis needs to withstand varying degrees of vibration and impact during transportation and installation, so its shock resistance performance needs to be inspected.

5. Material and Coating Inspection

1. Raw Material QualityStarting from the raw material procurement stage, each batch of raw materials should undergo small sample inspection to ensure that the quality of raw materials meets standards and complies with national standards or industry specifications.
2. Coating QualityThe surface of the metal chassis cabinet is usually treated with paint. The coating should be checked for uniformity, adhesion, and any peeling issues. At the same time, the coating should meet the requirements for alcohol resistance, hardness, and other tests.

6. Other Inspection Requirements

1. CleanlinessCheck for debris and dust inside the cabinet. Ensure that the interior of the chassis cabinet is clean and tidy.
2. Identification and PackagingThe chassis cabinet should have clear identification and packaging for easy recognition, transportation, and storage.

In summary, the inspection standards for chassis cabinets cover multiple aspects including appearance, size and tolerance, structure and stability, function and performance, material and coating, and others. These inspection standards aim to ensure that the quality and performance of the chassis cabinet meet user needs and maximize the stability and safety of the server.