Aluminum nuts blue oxide

主要功能:
      • Mild corrosion resistance (less than anodizing but better than bare aluminum).

      • Decorative blue-black finish (for aesthetic or color-coding purposes).

      • Non-conductive interference (unlike anodizing, which can affect conductivity).

分類:
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螺栓與螺帽的鎖緊與開口採用非標準設計,搭配
使用非標準工具來解決打開和緊固問題。一般而言,其他
wrenches cannot be inserted. In the appearance design of nuts and bolts, non-standard slotting,
開口或五角、七角、九角或客製化對應槽工具
起到了很好的防盜效果

冷镦加工是一种少切削或无切削的压力加工新工艺
金屬。它是一種利用金屬在下列因素作用下產生塑性變形的加工方法
外力作用下,在模具的幫助下,重新分配和轉移金屬的體積,以形成
所需的零件或坯料。冷镦工艺最适合生产标准的
螺栓、螺絲、螺帽、鉚釘和銷等緊固件

Aluminum Nut with Blue Oxide Coating – Description

Aluminum nuts with a blue oxide coating are lightweight, corrosion-resistant fasteners designed for applications where weight savings and aesthetic appeal are important. The blue oxide finish provides a decorative and mildly protective layer while maintaining the nut’s conductivity and non-magnetic properties.


主要功能:

  1. 材質:

    • Made from aluminum alloys (typically 6061-T6 or 7075-T6 for higher strength).

    • Lightweight (~1/3 the weight of steel) with good corrosion resistance.

  2. Blue Oxide Coating:

    • chemical conversion coating (not anodized) that provides:

      • Mild corrosion resistance (less than anodizing but better than bare aluminum).

      • Decorative blue-black finish (for aesthetic or color-coding purposes).

      • Non-conductive interference (unlike anodizing, which can affect conductivity).

    • Thinner than anodizing, so it doesn’t significantly alter thread dimensions.

  3. Locking Mechanism (If Applicable):

    • Some blue oxide aluminum nuts may include:

      • Nylon insert (Nyloc) for vibration resistance.

      • Serrated flange for better grip.

      • Prevailing torque design (all-metal locking).

  4. 優勢:

    • Lightweight – Ideal for aerospace, automotive, and cycling applications.

    • Non-magnetic & Conductive – Used in electronics and RF applications.

    • Aesthetic appeal – Often used in custom builds, motorcycles, and drones.

    • Moderate corrosion resistance – Suitable for indoor or mild outdoor use.

  5. Limitations:

    • Not as corrosion-resistant as anodized or stainless steel nuts.

    • Lower strength compared to steel or titanium.

    • Blue oxide can wear off over time with friction.


常見應用:

  • Aerospace & drones (weight-sensitive assemblies).

  • Custom automotive & motorcycles (decorative fasteners).

  • Electronics & electrical enclosures (non-magnetic, conductive properties).

  • Bicycles & sporting equipment (lightweight components).


Conclusion:

Blue oxide aluminum nuts are a good choice for lightweight, non-magnetic applications where moderate corrosion resistance and an attractive finish are desired. However, for harsher environments, anodized or stainless steel nuts may be more suitable.

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