Current situation and analysis of domestic automobile market in 2021

According to the statistics of the Ministry of public security, as of June 2020, the number of motor vehicles in China has reached 360 million, of which 270 million are automobiles, accounting for 75% of the total number of motor vehicles; The number of new energy vehicles was 4.17 million, an increase of 360000 or 9.45% compared with the end of last year; There are 440 million motor vehicle drivers, including 400 million automobile drivers.

What is an intake hose?

Intake hoses (also called intake pipes, air pipes, air filter hoses, rubber pipes) are parts that connect the car’s air filter boxand throttle. The hose is very important! Because it can transport clean and filtered fresh air from outside the car to the inside of the car engine, where it is mixed and burned with fuel.

About Automotive Rubber Hose

The main materials of automobile rubber hose are generally EPDM, nitrile oil resistant rubber, neoprene, fluororubber, ethylene propylene rubber, etc; Automobile rubber hose requires a wide range of ambient temperature; From -40 to +120, it should be used normally, with corrosion resistance and aging resistance. At the same time, it also has a certain hardness and tensile strength.

What is the difference between silicone tube extrusion and molding production?

In the aspect of molding, the production of silicone tubes is generally short, because the molding production machinery and equipment workbench is only so large, so the production of overly long silicone tubes can not only use the bonding operation, but the bonding effect is not as good as the one-piece forming.

What is the role of silicone hose in the automotive industry

Silica gel is a new type of polymer elastic material, which has excellent high temperature resistance (250 ~ 300 ℃) and low temperature resistance (- 40 ~ 60 ℃), good physiological stability, can withstand repeated and harsh disinfection conditions, excellent resilience and permanent deformation (no more than 50% after 48 hours at 200 ℃), breakdown voltage (20 ~ 25 kV / mm), ozone resistance and ultraviolet resistance. Special silica gel has radiation resistance and oil resistance. Silicone tube is widely used, and steam work will become the future development direction of silicone tube.

Inspection and maintenance of rubber hoses

Check the rubber hose regularly, and pay attention to the joint connection and bending parts, and whether there is aging leading to hardening and cracking of the rubber hose.

Precautions for rubber hose storage

Storage period: identify the storage time of hose, first in first out. The storage period shall be as short as possible, with a maximum of 24 months, and shall be checked before use.

Several important automotive rubber hoses

The main function of automobile cooling system is to radiate part of the heat absorbed by heated parts in time to ensure that the engine works at the most appropriate temperature. The cooling water hose is a flexible pipeline connecting the automobile engine and the radiator. Its main function is to convey coolant and dissipate heat to ensure the safe and normal operation of the engine.