Brake Pads

A brake pad refers to a piece of friction-generating material that pushes itself on to the rotor or disc of your car, thereby enabling it to slow down and stop. They are manufactured from steel with heavy friction material on one side. Therefore as you push the brake, the brake pads squeeze the brake disc, thereby slowing down the car or stopping it.

Today's vehicles are typically equipped with disc brakes. The wheels are connected to brake rotors that turn with the wheel. Brake calipers apply pressure to the rotors when the brakes are applied. A brake pad lies between the rotor and the caliper to reduce the level of friction from metal on metal. Over time, the pads need replacing. When a driver applies the brakes, they may hear a screeching sound, or the vehicle pulls to one sign. These are indications that the pads are worn.
The type of replacement brake pads needed depends on the specific vehicle. Ceramic pads are manufactured for heavier vehicles that include pickups and SUVs. Semi-metallic pads are often used for conventional cars. The specialized pads are created to reduce noise levels and prevent dust contamination.

The mixing process
It consists of mixing all the components homogeneously, and therefore it is one of the key steps in the manufacturing process.
To achieve this optimum homogenization of the mixture, the mixer has a central shaft that rotates the components in the shape of 8s and two blender blades on another shaft that homogenize the mixture.
During this process, one of the critical factors is the time that the different materials spend in the mixer, since this period must be specified depending on the type of fibres to be blended. It is important to remember that each fibre has an opening time, i.e. a period when its length is at its maximum. After this time, the fibres are shortened and do not perform the mixing function properly.

Hot pressing
The function of hot pressing is to bind the different components. On the one hand, the pressure applied leads to a reduction in volume, but at the same time the temperature melts the resins so that they flow throughout the material, binding the different elements together.
In this process, pressing cycles are carried out, i.e. the press acts on the pads for a certain period of time and then allows the gases to escape. It is at this stage that the supports stick to the friction material.
There are two main reasons for this:
The support plate is impregnated with a resin that achieves the adhesion of the material.
There are through holes in the brackets, the function of which is to receive the flowing friction material to achieve complete fixation of the friction material to the support plate.
Typical pressing time varies from 5 to 7 minutes depending on the formula used to allow the resins to cure in the press.

Curing
The curing process takes place in ovens whose main task is the complete polymerisation of the resins, thus achieving a perfect compaction of the material, to which must be added the loss of any remaining volatile content.
This process is also carried out according to the time and temperature reached in the different stages. This means that the pads are affected by a cycle of different temperatures, in which they pass through during a given period.

Scorching
In this final phase, the friction material is subjected to temperatures of 650ºC or higher by means of a hot plate. In this last scorching process, a large part of the remaining organic material is removed, and the brake pad acquires its definitive characteristics.

There's a lot more to effectively using your car's braking system than simply stomping on the pedal when a squirrel darts out in front of you. The braking systems of cars, trucks and motorcycles are made up of a number of parts that translate the driver's actions into physical force that stops the car. One of those brake parts is your vehicle's brake pads.
Brake pads are a key brake part because they are the component that contacts and applies pressure and friction to a vehicle's brake rotors -- those flat, shiny discs that you can sometimes see just behind the wheels of some vehicles. The pressure and friction applied to the brake rotor is what slows and stops the wheel. Once the wheels stop turning, the vehicle stops moving, too. Though the role of brake pads as braking parts is pretty simple, the brake pads themselves are anything but.