Why is the role of heat shrinkable tubes so important in the new energy vehicle industry?

Heat-shrinkable tubes are widely used in the automotive industry. In terms of representing the future of new energy vehicles, heat-shrinkable tubes are used in a wider range. Today, we will lead you to understand the application of new energy vehicles and heat-shrinkable tubes in new energy vehicles. application.

Heat-shrinkable tubes have empathy for this year's industry price rise. The price of EVA, the main raw material for heat-shrinkable tubes, has soared from 23,000 yuan per ton in March to the current 68,000 yuan per ton, which has nearly tripled. The tube industry has had an unprecedented impact, and the demand for heat-shrinkable tubes is very strong. However, due to the pressure of production costs, the price of heat-shrinkable tubes has to be increased. This is also a last resort. If there is no price increase, there will be no profit. It will also have a certain impact on the market. It is hoped that the upstream industry will control the price of raw materials as soon as possible.
The main raw material of heat-shrinkable tubes is polyolefin, which is what we often call EVA. Only when the price of EVA stabilizes can the heat-shrinkable tube market be cleaned up. I hope everyone can use cheap and stable heat-shrinkable tubes.
New energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels, but the use of new vehicle power devices), the integration of advanced technologies in vehicle power control and drive, and the formation of advanced technical principles, Cars with new technology and new structure. New energy vehicles include: hybrid electric vehicles (HEV), pure electric vehicles (BEV), fuel cell vehicles (FCEV), hydrogen engine vehicles, gas vehicles, alcohol ether vehicles, etc.
The application scenarios of new energy vehicle cables mainly include three situations: in-vehicle cables, charging guns/charging piles, and on-vehicle charging. The high-voltage wiring harness in the vehicle is mainly used to provide high-voltage and strong power supply for new energy vehicles, which belongs to the category of new energy vehicles. High-safety parts have the characteristics of high voltage/high current and large number of wires with large diameters. This requires that the heat shrinkable tubes used in high-voltage wiring harnesses in new energy vehicles have higher protection performance, can withstand 600V voltage for a long time, and are connected to high voltage The matching seal of the device must be waterproof and dustproof, and the material used for the Heat Shrinkable Tube is light, stable, highly insulating, and highly flame retardant.
In view of the high safety requirements of new energy vehicles on voltage, the wall thickness of the heat shrinkable tube will be appropriately thickened, and its insulation withstand voltage and breakdown can reach 2800V-3000V, requiring no breakdown for 60 seconds; Features Produce orange heat shrink tubing.
New energy vehicle heat-shrinkable tubes have higher flame-retardant requirements. The white EVA hot-melt adhesive used in the double-walled heat-shrinkable tube (including heat-shrinkable tube) has better flame-retardant performance than the sealing performance of transparent hot-melt adhesive. It can be waterproof and moisture-proof, and the flame retardant grade can also reach the VW-1 level of UL224; high-temperature-resistant heat-shrinkable tubes, fluororubber heat-shrinkable tubes can be used, and fluororubber materials can withstand high temperatures of 200 degrees, and the flame-retardant performance is better, reaching higher The V-0 level of UL94 required by the fire rating is another good choice for the higher flame retardant level requirements of the automotive industry.