Fastener for CFRP Al Armor® Nut
Yamashina Co., Ltd.
About This Product
This nut is made of aluminum alloy, and its surface is treated with AlArma® treatment, which is based on a special hard alumite, to ensure electrical insulation and prevent electrolytic corrosion. When molded into CFRTP containing 40% carbon fiber and evaluated using the JIS alternate salt water immersion method, it maintains corrosion resistance for 3,000 hours.
■Main uses
- Bolt fastening without electrolytic corrosion (used embedded in CFRP, CFRTP, magnesium, etc.)
・Replacement of iron and brass insert nuts to reduce weight
・Eliminates female threads and can be used as a mating part for tapping bolts, reducing total costs and preventing loosening.
Product features
■High electrolytic corrosion risk countermeasures
A nut made of aluminum alloy. Mainly AlMg-based materials are used. A special hard alumite film is applied to the surface to ensure electrical insulation and strongly prevent electrolytic corrosion. When attached to CFRTP containing 40% carbon fiber and evaluated for corrosion resistance using the JIS alternate salt water immersion method, it maintains corrosion resistance for 3,000 hours.
■Light Synergy for weight reduction
AlArma® nuts are made of aluminum alloy, so their specific gravity is one-third that of iron. In addition to reducing the weight of the material using CFRP, it also reduces the weight of the nut itself. CFRP, which has been difficult to use due to electrolytic corrosion countermeasures, has become easier to use by using Al Armor® nuts, and we can expect great synergistic effects in weight reduction.
■Strong fastening retention performance
The pull-out strength is higher than the strength when a conventional knurled insert nut is attached to CFRTP and pulled out. In addition, the resistance to co-rotation and the strength of the female thread are the strength at which the bolt breaks when a bolt with strength class 10.9 is screwed in. The secret lies in the shape that allows carbon fiber to flow easily.
■Cheap Total cost reduction
The cost of countermeasures against electrolytic corrosion, which were previously required, is reduced. This reduces the total cost of manufacturing, promotes the use of CFRP, and contributes to lighter products.
■Two types of basic shapes
We offer two types: V4, which uses heading processing for large lots, and V6, which uses cutting processing to reduce initial costs even for small lots. Both have shapes that allow the carbon fiber to easily wrap around, maintain high pull-out strength, and easily form a highly corrosion-resistant film. (Patent pending)
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Product
Fastener for CFRP Al Armor® Nut
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Handling Company
Yamashina Co., Ltd.
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Categories
1 Models of Fastener for CFRP Al Armor® Nut
| Product Image | Part Number | Price (excluding tax) |
|---|---|---|
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AluArma® Nut |
Available upon quote |
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About Company Handling This Product
- Japan