Speed Skating Sharpening Tutorial Video

There is a video tutorial on speed skating blade sharpening on the webpage, which is described as follows:

1. Introduction: Don't wear hard objects, such as keys, knives, mobile phones, etc. when skating, so as not to fall and get hurt. Wear protective gear before skating, including helmet, knee pads, elbow pads and gloves. Protective gear can not only protect the skater, but also make him feel safe, let him let go of his hands and feet, not afraid of falling, and study bravely. When skating, the skater is warned to bend his legs and put his center of gravity forward. Even if you slip, you should fall forward, so that you won't fall off your tailbone and let the skater learn to protect himself.

2. Blade cutting methods of ice skates: mechanical grinding, semi-mechanical grinding and manual grinding. Mechanical grinding is professional processing with a grinder, and semi-mechanical grinding is grinding blades with a grinding wheel. Because of the large wear, it is only suitable for rough grinding and then manual grinding. Manual grinding has low cost and good effect. People who demand high-quality skating are all hand-grinded.

3, sharpening method: first sharpen the knife, be sure to fix the skates on the sharpening frame, bring gloves, and carefully check whether the two knives are on the same plane. You can rub it back and forth with a big grinding wheel to see if the wear marks are uniform. After confirmation, first use a large grinding wheel to grind the figure eight until burrs appear on both sides of the blade, that is, finish the rough grinding. Then use coarse oilstone to continue the figure-eight grinding until the grinding marks are particularly fine, and then use fine oilstone to remove the burrs on the knife surface and sides, and a pair of shoes will be polished.