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Thread locker holds bolts and zinc protects them

By Windpower Engineering | May 5, 2011

Bolts take a lot of attention in most machinery and more so in the always-slightly-moving wind turbines. Two recent products provide ways to hold them fast and then protect them.

A high-viscosity, primerless, red threadlocker, intended for use in a wide range of heavy duty industrial applications, cures even on fasteners treated with thread lubricants and anti-corrosion and protection fluids without cleaning.  Henkel Corp. introduced its Loctite 263 Threadlocker, (www.useloctite.com) a high-strength, single-component anaerobic threadlocker intended to permanently lock and seal threaded fasteners up to one-inch in diameter

Curve vs temp

The threadlocker cures close to full strength at extreme temperatures.

When confined in the absence of air between close-fitting metal surfaces, the anaerobic treadlocker is said to rapidly fix and cure. The company says the material performs equally well on active and passive metal surfaces including stainless steel and plated material without the use of a primer.

Once fully cured and in service, the material prevents fasteners from loosening and leakage caused by shock and vibration. It withstands temperatures to 360ºF.  The material is said to provide excellent resistance to a variety of industrial fluids and solvents, ensuring a leak-free seal of the threaded assembly. Localized heat and hand tools are required to disassemble treated fasteners.

Performance data

To protect fasteners, A chrome-free, inorganic zinc-rich fastener coating provides a thin silver coat and superior product performance in a single layer, according to it manufacturer. Magni 501(www.themagnigroup.com)  is engineered as a replacement coating for zinc plating and trivalent passivation. A few features includes exceptional corrosion resistance , no hydrogen embrittlement concerns, and consistent torque tension relationship. Other features include a resistant to automotive fuels and fluids, excellent adhesion, cost-competitive, paintable, and there is no waste treatment needed. It’s also RoHS, WEE, ELV and REACH compliant.

WPE

 

 


Filed Under: Components, Turbines
Tagged With: bolts, Henkel Corp, loctite
 

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