Thursday, January 14, 2010

Monel


Monel Frame – the frame made of monel is more expensive than those made of nickel silver because of the stronger metal content. Monel is more resistant to corrosion than nickel and easier to silver-plate or gold-plate. However, monel still has nickel as a component.
Monel — a mixture of any of a broad range of metals — is the most widely used material in the manufacture of eyeglass frames. It is malleable and corrosion-resistant, especially if the right kind of plating, such as palladium or other nickel-free options, is used.
• Alloy of nickel and copper, with more than 50% of nickel and traces of iron and manganese.
• Monel is a form of nickel silver. It is frequently used to make bridges and frame rims.
•Monel is very resistant to corrosion and is flexible enough to be adjusted.


Pros : high resistance to corrosion, thin material, high mechanical resistance, can easily be warped without preheating, is easy to weld.
Cons: Becomes brittle when exposed to hot temperatures. Heavy, depending on size of frame.

No comments: