1. Product Overview and Material

This heavy-duty shroud plate is an essential interface component designed for petroleum industry fluid systems.

• Material Selection:​ Precision-machined from 6061-T6/T651 aluminum alloy. This grade provides the optimal strength-to-weight ratio and fatigue resistance required for long-term oilfield service.

• Surface Engineering:​ The plate features Type II, Class 2 anodic oxidation per MIL-A-8625 standards. This specialized coating ensures the plate survives the corrosive and abrasive environments typical of oilfield operations.

• Aesthetic Coordination:​ Finished in Blue (Ref: FED-STD-595 15092), it ensures a unified appearance across the entire petroleum assembly.

2. Manufacturing Process

• High-Speed CNC Milling:​ Utilizing 3-axis and 4-axis CNC centers, we machine the rectangular profile and the large central bore to ensure high-precision perpendicularity.

• Complex Hole Patterning:​ The plate features a series of precise through-holes and UNC threaded patterns (such as .190-24 UNC-2B) which are executed in a single setup to maintain perfect relative position.

• Symmetrical Countersinking:​ We apply precise 90° countersinks on both sides of the central bore and perimeter holes, ensuring flush assembly with mating fasteners from any direction.

3. Technical Machining Challenges & Solutions

• Positional Accuracy of Multi-Feature Groups:​ With multiple hole patterns (2X, 4X configurations) tied to primary datums, maintaining exact spatial relationships is a challenge. We utilize high-precision probe systems to calibrate datums before every operation.

• Thread Integrity in Aluminum:​ Machining high-strength threads like the UNC-2B series in aluminum requires specialized tapping tools to prevent stripping and ensure the threads can withstand the high vibrations of oilfield machinery.

• Post-Oxidation Dimensional Compliance:​ Crucially, all final dimensions for this plate apply after the anodizing process. Our process includes a proprietary compensation algorithm to adjust pre-machining sizes based on the expected thickness of the blue oxide layer.

4. Quality Assurance & Compliance

To ensure the integrity of this petroleum accessory, we provide a rigorous documentation package:

• Material Certification:​ Full traceability of the 6061-T6 aluminum.

• Comprehensive Testing:​ Each batch includes Salt Spray Test Reports, Film Thickness Test Reports, and a Color Comparison Audit to guarantee performance and visual consistency.

• Final Approval:​ The product carries a certified "Approved" status, ensuring it is ready for immediate field deployment.