The friction between the two tires of the hard tube of the car's brake tube will not cause the brake to get out of control. Uneven tire pressure, uneven braking force between the two wheels, suspension problems (such as failure of both sides or one side of the shock absorber spring, loose ball head, deformed connecting rod, etc.), uneven wear of the brake pads The brake will be removed from the scene. If the car tire is damaged, a pair of tires must be replaced (bad tires must be replaced at both ends), unless the tire to be replaced is a new tire or very light tire wear, and both ends of the tire must be the same. Most of the brakes of automobile brakes are abnormal and abnormal wear of the brake disc. Use a dial indicator to measure the axial runout of the brake disc, which should be less than 0.05 mm. Beyond this specification, the brake disc must be replaced. Remove the brake disc and measure the amount of swing. If the hub swings more than 0.10 mm, the brake disc will wear out. It is necessary to consider replacing the wheels, bearings and brake discs.
Conductive plastics also have many applications in other fields, for example: using their sensitivity to electrical signals, they can be used to make sensors, conductive plastics can absorb microwaves, and they can be converted into aircraft coatings to escape the hidden effect of radar. In rockets, ships, oil pipelines, etc., it can also play its anti-corrosion function. Conductive plastics may be good materials for the development of nanotechnology. Currently, Professor Mark Dilmid, one of the conductive plastics, is studying the application of conductive plastics and nanotechnology. The traditional conductive material is electro-woven with conductive fibers into nano-scale fibers and nano-electronic circuits. As we all know, the diameter of human hair is 50,000 nanometers, and the research team led by Professor Mark Dilmid is developing a nano data polyaniline fiber with a diameter of only 100 nanometers. This is the best fiber in the world, only hair. 1/500 of the wire diameter. If nano conductive fibers are associated with nano electronic circuits, the computer can be made very small.