What are non-metallic materials?

Non-metallic materials include various materials such as plastics, rubber, glass, adhesives, friction materials, coating materials, etc.

(1) Plastic Plastic is a polymer material mainly composed of organic synthetic resin. It can usually be injection molded or solidified under heating and pressurizing conditions, so it is called plastic automotive engineering plastic. It is mainly used to manufacture certain Some machine parts or components have the characteristics of good strength, toughness and wear resistance, low price, corrosion resistance, noise reduction, beautiful appearance and light weight.

Most plastics are based on various synthetic resins, with some additives used to improve performance and process performance.

(2) Rubber The so-called rubber refers to a polymer material that is in a highly elastic state within the operating temperature range. Rubber is widely used in elastic materials, sealing materials, vibration damping and anti-vibration materials, and transmission materials.

The most significant feature of rubber is its high elasticity and resilience. Within the temperature range of -50~150℃, rubber can maintain good elasticity, and its deformation under the action of external force is reversible and highly elastic deformation. The length can reach 100%~1000%. At the same time, rubber also has certain strength, excellent fatigue resistance, and good wear resistance, insulation, soundproofing, waterproofing, buffering and vibration absorption. The main disadvantages of rubber are that it is easy to age and oil-resistant. Poor sex

Commonly used rubber materials in production include natural rubber, synthetic rubber and reclaimed rubber.

(3) Glass Glass is an amorphous solid. It is made of quartz sand, soda ash, feldspar, limestone, etc. as the main raw material, with some metal oxides and other auxiliary materials added. After being calcined in a high-temperature kiln until it melts, it is formed and cooled. Obtained non-metallic materials

Glass has excellent optical properties, mechanical properties, insulation and chemical stability, etc., and is an indispensable material in modern industry and construction. Flat glass, tempered glass and laminated glass are commonly used in automobiles.

Flat glass: Flat glass is ordinary flat glass. When the glass breaks, it will form a sharp "knife edge", which can easily hurt people. You must be careful when using it.

Tempered glass: Tempered glass is a special glass that is made of ordinary glass that has been quenched at high temperatures. Ordinary glass is heated to a certain temperature and then quickly cooled for special tempering treatment. Its performance characteristics are high resistance to sudden temperature changes and high strength.

Laminated glass: Laminated glass is also called safety glass. It is made by bonding two or more pieces of flat glass with polyvinyl butyral plastic linings. It has high strength. When the laminated glass is damaged, radial or Concentric circular cracks, the fragments are not easy to fall off, and do not affect the transparency of the glass and do not produce refraction. Laminated glass is often used in the front windshield of automobiles and the side windows of buses.

When making automotive glass, some trace elements are often added to form colored glass. Commonly used colors for automotive glass include blue, brown, etc. This kind of glass not only reduces the transparency of the glass, but also absorbs part of the ultraviolet and infrared rays in the sun. It can also prevent outsiders from peeking into the car. Of course, the same effect can be achieved by applying film or coating on the glass.