TU-TESL

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(source: LANXESS official website) according to foreign media reports, Langsheng has developed a series of laser weldable polyamide, PBT Durethan LT and pocan LT (laser transparent) materials. Recently, three new compounds have been included in the product range. Dr. Claudia Dahling, an expert in process plastics of Langsheng, said: "these three new materials have good laser welding characteristics, safe operation, excellent performance and wide application fields. Potential applications include electric vehicle drive and driver assistance system components, as well as Internet of things devices. " Pocan b323xhrlt (pocan tp155-002 at present) is a new 30% glass fiber reinforced PBT composite material, which shows good laser transparency and is very corrosion-resistant in humid and hot environment. At present, there are few such materials on the market, because the standard hydrolytic stability additives usually lead to a significant decrease in the laser transparency of PBT materials. The society of Automotive Engineers (SAE) has passed a long-term test to verify the excellent hydrolysis resistance of the new generation pocan HR products. D ä hling said: "our products have reached the level 4-5 standard in the uscar test, which are the two highest levels." Most flame retardants will reduce the laser transparency of thermoplastic, so PBT, polyamide 6 and polyamide 66 compounds on the market rarely have good Laser Weldability and high flame retardancy at the same time. However, they are essential raw materials for battery system components of electric vehicles. Dahling added: "we offer compounds based on polyamide 6, such as Durethan bkv30fn04lt. These materials have halogen-free flame-retardant packaging, and have passed UL 94 flammability test of small sample thickness test, reaching the highest V-0 classification. " It can be processed safely in a stable process window, leaving almost no deposition on the tool. Moreover, the tracking resistance is up to 600 V (IEC 60112 compares the tracking index CTI a), which is an ideal component of high voltage and plug. The third new material for laser welding is pocan tp150-002. This 30% glass fiber reinforced PBT compound has been optimized to have high laser transparency. The transmissivity is up to 13%, about twice that of most other transparent PBT products (measured at 980 nm with LPKF tmg-3 equipment, the sample thickness is 2 mm). "We can tailor materials to different designs to provide cost-effective laser welded components to meet thicker wall requirements," said D ä hling Landsat provides hiant services to customers to support the development of laser welding components. The services include: (1) using CAE tools to design components on the basis of materials. "We use simulation to reduce distortion," Dahling said. For example, make the connection process safer and more stable. " (2) According to the customer standard, carry out a wide range of component testing services, such as dynamic testing on large components, and climate testing according to requirements. (3) The service also includes injection molding, welding and sampling technical support to start mass production.