What is the heat shield?

The heat shield is a substance that protects something from excess heat. There are three basic forms of heat shield and each protects in a different way. The dissipation shield occupies heat and spread it over a large surface area to pull it away from the heat source. The absorbing shield occupies heat and sticks to it; The shields usually have a large layer of insulation under them to protect the lower components. Finally, the reflecting shield redirects the heat from the shielded object without absorbing any heat. These shields are located in a wide range of products, from firearms to aircraft. This layer is wrapped around a protected item and creates an external shell. The construction of this shell varies depending on the type of label and the material used to assemble. In some cases, there will be more than one layer, a heat shield that shines and directs the temperature from the device.

The most common heat shields are made of aluminum,steels and ceramics. Steel is the least effective of three materials, but is common in places where costs and weight are not important. The steel shield is usually a pre -formed rigid board that fits through a specific component. These boards are cheap, but are cumbersome and heavy. Aluminum is a common alternative to steel; It is lighter, absorbs more heat and flexible aluminum can be made, so prefabrication is not necessary.

ceramics is widely considered to be the best material for normal heat shielding. These shields are lightweight, durable and very well done. The only drawback was their rigidity for a long time; Like steel, they had to be prefabricated. This disadvantage was removed at the beginning of the 21st century, when flexible aluminum ceramic was introduced on the market.

Many products contain a heat shield. The two most common places where normal consumers encounter one of these shields are inside weapons with a high degree of car engines with fire and performance. In both cases the temporalThe gable the surrounding material before the heat created before explosive combustion. These shields are also common for some manufacturing machines such as grinders and lathes. Despite this, the most famous heat shields are probably found on high -speed aircraft, such as jets and space shuttles, where it protects the device from air friction generated by high -speed flight.