Elegant Rolled Copper Nut: A seamless fusion of sophistication and function, designed for discerning applications.
1, Product Definition and Core Features: Unveiling the Artistry and Innovation
The Rolled Copper Nut is a meticulously crafted fastener, forged from premium copper alloys such as H62 brass and C3604 lead brass. This masterpiece of engineering is created through cold heading or precision machining, with an exquisite surface adorned in straight or mesh patterns. Revered for its excellent conductivity, remarkable corrosion resistance, and superior anti-loosening capabilities, it finds its quintessential use in sectors like electronics, machinery, and automotive. The core design logic is intricately detailed as follows:
• Roll pattern structure: Through expert physical extrusion, breathtaking tooth-shaped patterns (depth ranging from 0.05 to 0.2mm) are crafted to enhance frictional resistance against the substrate, ensuring unparalleled stability and performance.
Copper based characteristics: Harnessing copper's innate conductivity (≥ 58MS/m) and exceptional corrosion resistance (demonstrated by a salt spray test of ≥ 72 hours), this nut is the paragon of suitability for precision equipment.
2, Technical Parameters and Structural Analysis: Delving into the Specifications and Innovative Engineering
1. Key Parameters [Table]: A meticulous compilation of the essential specifications that define our product's excellence.
Application scenarios of parameter standard value range: A comprehensive guide to the diverse applications tailored by our parameter standards.
Material H62 brass (Cu62%, Zn38%): Ideal for electronic device casings and communication modules, ensuring robust and reliable performance.
Hardness HB80-120 (annealed state): Perfectly calibrated for thin plate installation, intelligently designed to avoid substrate damage.
Thread specifications M2-M10 (metric), 4-40UNC (imperial): Designed for precision PCB board fixing and sensor bracket installations.
Roll pattern type: Choose from straight grain (120 °) or mesh pattern (diamond cross); perfect for anti-loosening in vibration-prone environments and seamless shaft connections.
Surface treatment includes nickel plating (Ni ≥ 5 μm), passivation, and natural polishing: Tailored for oxidation prevention and conductivity requirements, providing durability and a flawless finish.
2. Structural Innovation Points: Unveiling the Cutting-Edge Design Enhancements
Double end embossing design: A unique blend of functionality, with one end embossed and the other chamfered, achieving a harmonious balance between anti-loosening and guiding functions (as seen in M3 × 0.5 nuts, chamfered at 15 °).
Thin wall strengthening process: Through advanced cold extrusion, wall thickness is strategically increased (from the conventional 0.8mm to 1.2mm), bolstering torsional strength to impressive levels (≥ 15N · m).
3, Application Scenarios and Selection Logic: Navigating the Versatile Uses and Precision Selection Process
1. Typical Application Scenarios: An exploration of where our product thrives.
Electronic devices: Securely fasten phone frames to PCB boards with the M2 × 0.4 embossed copper nut, enhanced with nickel plating for superior oxidation prevention.
Automotive industry: Reliably connect sensors to metal brackets using the M4 × 0.7 mesh roller pattern, designed to endure high temperatures up to 150 ºC.
Precision instrument: Use for optical lens focusing rings with the M2.5 × 0.45 straight line rolling, offering a low friction coefficient of ≤ 0.15.
2. Three Step Selection Method: A Strategic Approach to Choosing the Perfect Fit
Step 1: Substrate Matching: Achieve perfect harmony with material compatibility.
Soft plastic (such as PC): Opt for straight grain embossing combined with an annealed state (hardness HB80) to prevent any cracking incidents.
Metal substrate (such as aluminum alloy): Select mesh rolling and nickel plating to significantly boost corrosion resistance.
Step 2: Load Verification: Ensure endurance and resilience under various load conditions.
Static load: Experience robust security with a single M3 knurled copper nut, boasting a tensile strength of ≥ 300N, as evidenced by precise measurements.
Dynamic load: Rest assured with zero loosening after an extensive 2000-cycle vibration test (10-55Hz, 1.5mm amplitude), proving its unwavering reliability.
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