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在线翻译:
szdaily -> Tech and Science -> 
Knives never have to be sharpened
    2017-01-25  08:53    Shenzhen Daily

   永远不会钝的刀子

    The days of having to sharpen your knives could soon be a thing of the past.

    NASA* engineers have helped to create a knife that will almost never have to be sharpened.

    The cutting-edge KNasa Chef Knife is twice as sharp as other blades and stays sharp for five times longer.

    The knife is made from an ultra-hard alloy* developed by scientists at the California Institute of Technology.

    The cutting-edge* features a 25-degree angle (12.5 degrees on each side) which makes it a thinner blade than other knives, enabling a more precise cut. The serrated* blade becomes self-sharpening as new teeth are exposed through use. This knife edge is harder than any steel yet it’s not brittle* and resists rust.

    The knife is the brainchild of California-based Habitat, which has spent several years developing it and claims it is twice as strong as titanium.

    Chief executive Adam Ackerman said: “Habitat has bonded it to a stainless steel knife body using our new patent-pending* laser bonding technology. With a Rockwell hardness* greater than 70, the knife’s nano* serrations give the blade unparalleled cutting performance. For ordinary stainless steel knives, that would mean it’s not going to be very durable, because with such a thin blade it’s going to wear* quickly.”

    (SD-Agencies)

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