Exhaust gas aftertreatment industry overview (development of substrate support mat)
Automobile exhaust aftertreatment belongs to the automobile-related industry. The scale of the industry is jointly determined by the structure of automobile sales and the demand for exhaust aftertreatment parts. In addition, with the tightening of exhaust aftertreatment for non-road machinery and marine use, the industry has ushered in an explosive period, and the value of the industry chain has grown. Significantly. The exhaust gas pollution control industry belongs to the energy conservation and environmental protection industry. Under the background of the national blue sky defense battle, its development is strongly supported by national laws and regulations, industrial policies, and environmental protection policies. From the current point of view, the National Sixth Policy has been basically finalized, giving the industry a good development opportunities. The upstream industries of the exhaust gas aftertreatment industry are mainly electronic components, pump body materials, substrate support mats, precious metals, urea tanks, gaskets, chemical materials and other industries. The relationship between the exhaust gas aftertreatment industry and the upstream industry is mainly reflected in the changes in procurement costs. The upstream industry is basically a competitive industry, and the market supply is relatively sufficient.
The straight-through substrate support mat used for gasoline engine exhaust purification system, coat the catalyst on the surface of the carrier, improve the catalyst performance through high geometric contact surface area and low heat capacity, when the automobile exhaust passes through, remove the HC, CO, NO, etc. Harmful ingredients become harmless ingredients.
Diesel vehicle exhaust particulate ceramic filter (DPF) is based on honeycomb substrate support mat material technology and uses cordierite or silicon carbide as raw material. It can exert excellent interception effect on particulates in diesel engine exhaust gas and is widely used. For diesel cars, city buses, heavy trucks, mine trucks and forklifts.
Required properties of substrate support mat
Larger surface area of substrate support mat: ensure sufficient contact between exhaust gas and catalyst.
The stable water absorption performance of the substrate support mat: to ensure that the catalyst is firmly and evenly coated on the surface of the support, and at the same time, it is not wasted due to excessively thick coating.
Substrate support mat warm-up: It is required that after the engine is started, the temperature of the substrate support mat can reach the active temperature of the catalyst in a short time. Substrate support mat lower exhaust resistance: The substrate support mat is required to have very little exhaust resistance to the engine, ensuring that it does not affect the performance of the engine. High strength of substrate support mat: Since the working environment of the substrate support mat is on a bumpy car, the substrate support mat is required to have high strength without being damaged by external forces. Good assembly of substrate support mat: The substrate support mat is a part of the exhaust assembly, and only good appearance and size can ensure the fit of the assembly.
High quality substrate support mat supplier
Through the above introduction, we have learned about the development of substrate support mat and required properties of substrate support mat. If you want to know more about substrate support mat, I recommend you a high quality substrate support mat supplier, which has more information about substrate support mat, you are welcome to visit and browse.
