When the plane landed, dozens of tons of the plane landed at speeds of more than 200 kilometers per hour, and the weight of the plane combined with the impact on the ground was under pressure of nearly 1,000 newtons per square centimeter.
In addition, aircraft tires also need to withstand the temperature of minus 50 to 60 degrees altitude, brake 150 degrees.
The aircraft tires are hollow tires with no inner tube and double tread structure, which is convenient for disassembly and maintenance. Before flight, maintenance personnel can measure the air pressure in the tires and inflate the tires if below the standard.In appearance, the plane tire tread has straight grooves along the circumference direction, but no horizontal grooves;The high strength of the tire's sealing ring ensures that the gas, which is up to several atmospheres in the tire, does not leak.
Aircraft tires are mainly produced by Michelin, bridgestone and Goodyear.Because tires are consumables that wear out every time an aircraft takes off and lands, especially if they cause a lot of friction to the runway, they need to be checked and replaced regularly.Based on the number of flights, a plane's tires can be used on about 200 flights.Once the tire wear exceeds the standard, the tire needs to be taken care of.The worn tread is generally redone five to six times, meaning that a tyre can take more than 1,000 flights.
The main steps of the aircraft tire change include cleaning, inspection, inspection, assembly, inflation, static test and other six steps.The aircraft will not be allowed to continue until the replacement tires have reached the release standard.