Main components of tires
(1) Toe opening
The rigid part used to fix the outer tire on the rim without being easily stretched is called the toe opening. The toe opening can firmly fix the outer tire on the rim and resist the force that causes the outer tire to detach from the rim during vehicle operation. In order to stabilize the formation of the toe opening and form a rigid transition from the bead to the sidewall, the triangular rubber used for filling has a high hardness and is non vulcanizable, so the toe opening is not repairable.
(2) Sidewall
The rubber covering layer attached to the sidewall of the fetus to prevent mechanical damage and other external effects (such as mud, water, etc.) is called the sidewall. The difference between the sidewall and the tread is that they do not bear significant stress, do not come into contact with the ground, and therefore are not subject to wear. The sidewall mainly operates in a flexible state, so the thickness of the sidewall can be slightly thinner. But it must withstand significant mechanical deformation and is prone to cracking under the action of ozone. Therefore, the sidewall should have lower constant elongation strength and excellent fatigue and ozone resistance. The tire side is the most prone area for zipper tire blowout. Main reasons: ① Insufficient air pressure. After the installation of the tire, the use of radial tires must ensure standard air pressure. If there is a lack of air, it will cause excessive bending of the steel wire on the tire side, causing looseness of the steel wire structure. When the tire is inflated again, the pressure resistance will decrease, and the zipper will burst Overload.
(3) Fetal shoulder
The tire shoulder is located between the tire crown and sidewall, and is the thickest part of the tire structure. It is also the part with the highest tire temperature during vehicle operation, which can easily cause rubber cracking. Such wounds should be inspected and repaired in a timely manner to avoid water seepage and internal steel wire rusting.
(4) Fetal crown
The crown of the tire should be in direct contact with the road surface. Therefore, it has good wear resistance, low rolling resistance and noise, as well as excellent heat resistance and puncture resistance. In addition, the load bearing capacity of the tire crown is also significant, especially on poor road surfaces, so it also needs to have good elastic fatigue resistance and high aging resistance.
The rigid part used to fix the outer tire on the rim without being easily stretched is called the toe opening. The toe opening can firmly fix the outer tire on the rim and resist the force that causes the outer tire to detach from the rim during vehicle operation. In order to stabilize the formation of the toe opening and form a rigid transition from the bead to the sidewall, the triangular rubber used for filling has a high hardness and is non vulcanizable, so the toe opening is not repairable.
(2) Sidewall
The rubber covering layer attached to the sidewall of the fetus to prevent mechanical damage and other external effects (such as mud, water, etc.) is called the sidewall. The difference between the sidewall and the tread is that they do not bear significant stress, do not come into contact with the ground, and therefore are not subject to wear. The sidewall mainly operates in a flexible state, so the thickness of the sidewall can be slightly thinner. But it must withstand significant mechanical deformation and is prone to cracking under the action of ozone. Therefore, the sidewall should have lower constant elongation strength and excellent fatigue and ozone resistance. The tire side is the most prone area for zipper tire blowout. Main reasons: ① Insufficient air pressure. After the installation of the tire, the use of radial tires must ensure standard air pressure. If there is a lack of air, it will cause excessive bending of the steel wire on the tire side, causing looseness of the steel wire structure. When the tire is inflated again, the pressure resistance will decrease, and the zipper will burst Overload.
(3) Fetal shoulder
The tire shoulder is located between the tire crown and sidewall, and is the thickest part of the tire structure. It is also the part with the highest tire temperature during vehicle operation, which can easily cause rubber cracking. Such wounds should be inspected and repaired in a timely manner to avoid water seepage and internal steel wire rusting.
(4) Fetal crown
The crown of the tire should be in direct contact with the road surface. Therefore, it has good wear resistance, low rolling resistance and noise, as well as excellent heat resistance and puncture resistance. In addition, the load bearing capacity of the tire crown is also significant, especially on poor road surfaces, so it also needs to have good elastic fatigue resistance and high aging resistance.
