混凝土易干，在運輸的時候特別是長距離運輸需要使用混凝土攪拌車，因為攪拌車不僅能實現長距離運輸，而且在運輸過程中不斷攪拌著混凝土。不讓它干成粉末。在此期間輪胎經常和地面打磨接觸。如何判斷攪拌車輪胎該換了：
The concrete is easy to dry, so it is necessary to use the concrete mixer truck during the transportation, especially for the long-distance transportation, because the mixer truck can not only realize the long-distance transportation, but also continuously mix the concrete in the transportation process. Don't let it dry to powder. During this period, the tires are often in contact with the ground. How to judge whether the mixer tire should be changed:
1、輪胎胎面花紋深度
1. Tread depth of tire
胎面花紋的厚度一定要大于1.6毫米，如果你經常駕車行駛在摩擦力低的濕滑路面上，能保證胎面花紋厚度是上述數值的兩倍。
The thickness of tread pattern must be greater than 1.6 mm. If you often drive on wet roads with low friction, you can ensure that the tread pattern thickness is twice the above value.
2、胎面花紋磨損指示線
2. Tread pattern wear indicator line
混凝土攪拌車胎面花紋磨損指示線。當磨損到達一定程度 這些隱藏在胎面溝壑中的指示線就呈現出來。胎面花紋磨損指示線為扁平的橡膠條，與胎面縱向垂直鑲嵌在胎面溝壑中。如果輪胎上的幾乎所有指示線都清晰可見，意味著你需要盡快更換輪胎了。
Wear indicator line of tread pattern of concrete mixer truck. When the wear reaches a certain level, the indication lines hidden in the tread grooves appear. The tread pattern wear indicator line is a flat rubber strip, which is embedded in the tread groove vertically with the tread. If almost all of the indicator lines on the tire are clearly visible, it means that you need to change the tire as soon as possible.
3、輪胎側壁裂紋
3. Tire sidewall crack
輪胎上存在的問題并不是全部集中在胎面上，輪胎側壁也會出現一些毛病。通過觀察查找輪胎側壁上那些肉眼直接可見的裂痕和切口。這些細小的溝槽預示著輪胎上未來可能出現的漏氣裂縫，甚引發輪胎的爆裂。所以在輪胎側壁裂紋比較嚴重時，建議考慮更換輪胎。
The problems existing in the tire are not all concentrated on the tread, and there are also some problems on the sidewall of the tire. Look for cracks and cuts on the sidewall of the tire that are visible to the naked eye. These small grooves indicate that there may be air leakage cracks on the tire in the future, and even cause the tire to burst. Therefore, it is recommended to replace the tire when the sidewall crack is serious.
4、輪胎上的凸起和起泡
4. Bumps and blisters on tires
有些情況下，混凝土攪拌車輪胎的外表面會因為強度不夠，導致高出正常輪胎表面的凸起和起泡。這就如同血管中出現的動脈瘤，輪胎也面臨類似的狀況，如果沒有及時檢修，胎面上強度不足的區域有可能引發突然的爆裂。
In some cases, the outer surface of concrete mixer tire will bulge and blister higher than the normal tire surface due to insufficient strength. This is just like an aneurysm in a blood vessel. If the tire is not repaired in time, the area with insufficient strength on the tread may cause a sudden burst.
如果發現混凝土攪拌車的輪胎滿足以上條件之一，說明輪胎該換了，不管輪胎是否爆胎，也不管用了多長時間，都應該換掉需要更換的輪胎換上新的輪胎，確保駕駛。
If it is found that the tire of the concrete mixer meets one of the above conditions, it means that the tire should be replaced. No matter whether the tire is burst or how long it takes, the tire that needs to be replaced should be replaced with a new one to ensure driving safety.
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2022-12-23
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