Chemically-Etched Aluminum Sheets for EMI/RFI Shielding - Aerospace & Automotive Applications
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MOQ:
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Delivery Time:
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Product Description
Chemically-Etched Aluminum Sheets & EMI/RFI Shielding
Applications for Acid Etching of Aluminum
Etched aluminum is extensively utilized in aerospace and automotive industries for manufacturing electronic components including EMI/RFI shielding, shims, covers, encoder disks, springs, and contacts. The process enables creation of air intake grills, heater plates for aircraft, and textured dashboard surfaces, instrument dials, and coverings with custom profiles and logos for vehicle applications.
Small printed circuit board components can be efficiently produced using etched aluminum parts, as this rapid, precise, and cost-effective method allows for high-volume manufacturing with consistent quality.
Benefits of Aluminum Etching
Aluminum's superior strength-to-weight ratio, high fatigue limit, and temperature resistance make it ideal for aerospace components requiring lightweight durability. The etching process enables simultaneous production of multiple channels on heat transfer plates, making large-scale manufacturing more economical than alternative methods.
Automotive applications benefit from aluminum etching for components like bipolar fuel cell plates featuring multiple channels. The dual-surface etching capability further reduces production time while maintaining cost efficiency.
Photochemical etching protects EMI/RFI shielding parts from magnetic interference in electronic systems across various industries.
Key Advantages
- Inventory and brand management solutions
- Rapid prototyping capabilities
- Inherently burr-free, stress-free parts with unaltered physical properties
- Cost-effective production for high-volume orders
- High-precision machining with tight tolerances
Compatible Metals for Acid Etching
| Metal | Key Properties | Primary Applications |
|---|---|---|
| Titanium | Lightweight, exceptionally strong, biocompatible, fatigue-resistant | Aerospace, medical applications |
| Aluminum | High strength-to-weight ratio, electrical conductivity, corrosion resistance | Electronics, aviation, automotive |
| Copper | High thermal and electrical conductivity, rapid etching | Printed circuit boards, EMI/RFI shielding, electrical contacts |
| Nickel | Heat and corrosion resistance | Chemical processing, electronics |
| Stainless Steel | Strong corrosion resistance, durability | Industrial components, medical devices |
| Bronze | Ductility, stiffness, fatigue resistance | Decorative, musical, mechanical components |
| Molybdenum | High strength, superior thermal conductivity, low expansion coefficient | High-temperature applications, space technology |
Metal Etching Process Overview
Metal etching, also known as metal engraving, produces grooves, fine lines, or detailed patterns on metal parts for decorative, industrial, and architectural applications. Industries utilizing this process include jewelry, furniture, architecture, music, art, healthcare, woodworking, aerospace, electronics, and defense.
Standard Metal Etching Procedure
Cleaning Surfaces: Initial surface preparation removes contaminants including grease, oils, primer, and marking residues using solvents, de-oxidizing, and alkaline solutions to ensure uniform etching results.
Applying Masking Agent: Chemical-resistant maskants like isobutylene-isoprene copolymers and neoprene elastomers are applied via dipping or flow coating to outline the desired design.
Immersion in Etchant: Masked parts are submerged in chemical solutions such as ferric chloride for specified durations to achieve required width and depth.
Removing the Mask: Final demasking stage removes reaction by-products and maskant using cold water or specialized de-oxidizing baths, typically involving manual scraping to reveal finished patterns.
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Company
Shenzhen Xinhaisen Technology Limited
Location
ShaJing, Baoan, Shenzhen City, Guangdong Province, China
Contact Person
Haily Huang