Heat is not always found to be doing good towards all. It is sometimes the reason for greater problems, whether it be your skin and hair trouble or something as important as your vehicle tyres. Excessive heat can indeed lead to serious damages to your tyre. The first and really common phenomenon that is caused by heat is tyre blowout. Yes, it might be quite shocking to many but this is the fact. So let us see why it is so?
Tyres Blowout Due to Expansion
As science will rightly support it, air pressure is volatile when it comes in contact with heat. This means that it changes quicker than you think it will, in case it receives heat or temperature somehow. Tyre pressure is bound to increase when the temperature is high and the tyre receives more heat. And in the process, if the pressure exceeds the capacity of the tyre to hold in anymore, it shall lead to a tyre blowout. There is a limit to everything, so the owner of a vehicle should check with professionals or read the manual for knowing the limitations of the cheap tyres Coventry fitted to his/her car.
The temperature and the tyre pressure are directly related which is why a certain degree of rising in temperature leads to a certain degree of pressure rise. Fortunately, there is a proper ratio of pressure change and this shall help one in understanding the measure of possible change. When the temperature rises by 10 degrees Fahrenheit, the tyre pressure gets a notch higher by 1 pound. It is proper to say PSI for the tyre pressure as it is the measuring unit for the same; PSI means pound per square inch.
The reason that such minimal change in the pressure is an alarming affair for the car tyres, is because tyres only have about 30 to 35 PSI. So, this means even the slightest change in tyre pressure shall make a big difference to it and become a huge step towards a tyre blowout condition. But that is a worst-case scenario and if not this then there shall definitely be other problems rising like overinflation leading to excessive tyre wear and making it prone to severe tyre damage.
Why Does It Happen?
It is sometimes not satisfying to know what happens in a situation but rather why it happens. In this case, there are some interesting things that work behind the action of pressure rise along with the temperature rise. Let’s have a look at it.
The first would be the air molecules in the tyre that get agitated due to the excessive heat. When this happens there is some vibration that takes place and its intensity is such that it forces the expansion in a way. This is the whole mechanism that takes place during the summer season mostly.h
Secondly, the use of tyres on the road creates enough friction and so as a result of it the tyres heat up and expand in size. Driving on the asphalt generates more heat than any other kind of road.
Thirdly, the tyre compound has a different type of molecular structure which makes it a little different from the air molecules; tyres kenilworth have rubber molecules that are linked with polymers. When these polymers get heated due to rise in temperature or friction, they start to vibrate but that leads to contraction instead of expansion. But when the heat is excessive and the breaking point is reached, then it also breaks the twisted chains and that makes it vulnerable to damage. That means high levels of heat makes the tyres dangerous to continue with as it can get severely damaged.
Due to the above-mentioned reasons, the probability of a tyre blowout is more in the summertime and so it is important to be extra careful and avoid actions that can cause it.
The most important thing is to stop at the right time and allow the tyres to cool down for some time. So if the tyres feel really hot then it needs to cool down right away. Also, if your car tyres have high pressure or anything higher than the standard, they should be adjusted or cooled down. But it should also be noted that the modern cars have TPMS pre-installed in them but they cannot be relied on for detecting high pressure in your tyres. It has to be checked by a professional or at a pressure checking point to be safe.