經常出入降雪地區車輛車輪應於冬季裝用雪胎snow tire。
Snow tire
From Wikipedia, the free
encyclopedia
encyclopedia
Snow tires are tires designed for use in colder weather, snow and ice. Snow chains can
be a slower-speed, temporary alternative in snowy conditions.
be a slower-speed, temporary alternative in snowy conditions.
Snow tires have more sipes than summer tires, increasing traction on snow and ice, but reducing grip on dry and wet roads.[1] Tires designed for winter conditions
are optimized to drive at temperatures below 7 °C (45 °F).
are optimized to drive at temperatures below 7 °C (45 °F).
In much
of Scandinavia, Canada, and the US, snow tires may have metal studs to improve
grip on packed snow or ice, but such tires are prohibited in certain other
jurisdictions because of the damage they cause to the road surface.[2] The
metal studs are fabricated by encapsulating a hard pin in a softer material.
The pin is often made of tungsten (wolfram) carbide, a hard metal. The softer
base is the part that anchors the stud in the rubber of the tire. As the tire
wears with use, the softer base wears so that its surface is at about the same
level as the rubber, whereas the hard pin wears so that it continues to stick
out of the tire. The pin should stick out at least 1 mm for the tire to
function properly.[3] Snow tires do not eliminate skidding
on ice and snow, but they greatly reduce risks.
of Scandinavia, Canada, and the US, snow tires may have metal studs to improve
grip on packed snow or ice, but such tires are prohibited in certain other
jurisdictions because of the damage they cause to the road surface.[2] The
metal studs are fabricated by encapsulating a hard pin in a softer material.
The pin is often made of tungsten (wolfram) carbide, a hard metal. The softer
base is the part that anchors the stud in the rubber of the tire. As the tire
wears with use, the softer base wears so that its surface is at about the same
level as the rubber, whereas the hard pin wears so that it continues to stick
out of the tire. The pin should stick out at least 1 mm for the tire to
function properly.[3] Snow tires do not eliminate skidding
on ice and snow, but they greatly reduce risks.
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