The Royal Dutch DSM Group, a global science company active in the fields of health, nutrition and materials, has added a new member to the family of high temperature materials – Arnitel® HT TPC, which increases the long-term operating temperature of high temperature resistant TPC to 175 ° C. The temperature is raised to 190 °C. DSM uses Arnitel® HT TPC material solutions to help automakers create innovative, one-piece flexible hot booster tubes that enable one-step molding of production processes, which not only greatly increases productivity, but also reduces production costs by approximately 50 %, weight loss of up to 40%. At the same time, the risk of deformation, leakage and disengagement of the hot booster tube during engine operation is greatly reduced, bringing a new standard for flexible supercharged hot air intake pipes for the automotive industry.

Nowadays, in order to achieve higher energy efficiency, the requirements of the engine system are becoming more and more demanding, especially for the temperature resistance, pressure resistance and stability of the pressurized intake pipe. The manufacturing process of the current supercharged hot air intake pipe adopts a three-section assembly structure, that is, the rubber joint is assembled with the engineering plastic (or metal) fitting by using a metal joint, which not only has a complicated production process, high production cost, but also is easy to be deformed and easily leaked. Easy to disengage and other risks, the service life is also difficult to guarantee.

As a leading provider of innovative material solutions, DSM helps the automotive industry to create innovative, one-piece flexibility through long-term close cooperation with automotive manufacturers and based on the expertise and structural design experience of R&D and technical teams. Hot booster tube. The thermal booster tube uses Arnitel® HT TPC (thermoplastic elastomer) from DSM's family of high temperature resistant materials to achieve one-step molding and part structure integration, which not only greatly increases production efficiency, but also reduces production costs. About 50%, weight loss can reach 40%. At the same time, the risk of deformation, leakage and disengagement of the hot booster tube during engine operation is greatly reduced.

The hot booster tube needs to withstand the high temperature environment for a long time, and the engine and the intercooler connected to the two ends (fixed on the chassis of the car) will continuously generate relative motion during the running of the car, and the heat booster tube is also considered to be easy. Installability, therefore, requires the application of materials with high temperature resistance and flexibility. Although the three-section structure made of rubber and engineering plastics can meet the above requirements, the mechanical weight of the rubber is relatively poor, and a large wall thickness is required to meet the requirements of the hot pressurized air pipe, so that the weight of the component is large. In addition, thermoset rubber cannot be recycled, thus greatly reducing the environmental friendliness of the components.

However, conventional thermoplastic elastomers clearly fail to meet the stringent requirements of the thermal booster tube for temperature resistance of the material. As the inventor of Diablo's high temperature technology, DSM has successfully invented Arnitel® HT TPC high temperature thermoplastic elastomers with more than 25 years of expertise in air intake systems materials, redefining the temperature resistance of thermoplastic elastomers. The standard increases the long-term operating temperature of the heat-resistant TPC from 150 ° C to 175 ° C. At the same time, the thermal aging properties of Arnitel® HT TPC have been greatly improved and have excellent high temperature and oil resistance. Not only that, Arnitel® HT TPC is a thermoplastic material, so its materials can be recycled after the components are scrapped.

DSM's technicians also help customers to improve the silencing structure of the turbocharger air outlet to avoid additional radiated noise due to the use of TPC materials, taking into account passenger comfort requirements.

In terms of pressurized cold tubes, DSM offers Akulon® PA6 and a common grade Arnitel® material solution for the conversion of pressurized cold tubes to plastics by blow molding and injection molding.