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    Home > Coatings News > Paints and Coatings Market > Racing Mirror Materials: PC, UPR?

    Racing Mirror Materials: PC, UPR?

    • Last Update: 2021-01-10
    • Source: Internet
    • Author: User
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    China Paint Online News Information
    Japan City Light Industry provides headlights for the Tokai University Le Mans car, and the mirrors are made of PCO materials. According to China Coatings online

    experts, the city's light industry for the "76th Le Mans 24-hour endurance race (24 Heures du Mans) "team" TOKAI UNIV. YGK POWER provides headlights and its mirrors are made of PCO (Polycyclic Olefin) material. The team, led by Professor Lin Yizheng of Donghai University, traveled for about 18 hours on June 15, 2008 (local time), and although the race was terminated due to a faulty drive system, the day was lit and the headlights could be said to have "completed their mission". City Light Industry, as the official sponsor of the Donghai University project, provided the team with headlights. The light pass is increased to 3,200lm compared to 1700lm for commercially available vehicles. The cars have a total of 4 lights, about 2 each, all HID. The upper part of the headlight is the spotlight in the distance, the front is directly in front, and the lower part is the diffusion light that illuminates the surrounding area, which is 10 degrees each from the front to the left and right. The range of the headlights of the commercially available vehicles (reduced to 5lx as the benchmark) is 200m ahead, while this time the headlights can reach 330m. The cars are not equipped with a nearlight.
    the headlights were asked to be lighter than commercially available cars. It is the mirror that occupies almost all the weight of the headlights. Most of the mirrors of commercially available vehicles are made of UPR (unsaturated polyester resin), which has a specific gravity of 2.0 and is difficult to recycle due to thermostericity, and this time the thermoplastic resin is considered. Although the ability to "recycle" in the field of racing is not a problem, but the city light industry considered the technology to provide the car to the market, so in the development of the "recycling" factor. According to China Coatings

    experts, the first alternate material is PPS (polyphenyl sulfur ether). Although its proportion is relatively light, only 1.9, but there is a fragile problem. So developers are considering PEI (polyetheramide) and PCO. PEI is 1.28, PCO is 1.03, PCO is lighter, but the difficulty is that its heat-resistant temperature is only 140 degrees C. However, compared with the high beam mostly halogen lamp commercial vehicles, the car only uses HID, there will be no high temperature. Therefore, on the premise that the car is dedicated, the developer chose the PCO material.
    the company has explored whether PCO can be used as a material for commercial vehicle mirrors. The commercially available mirrors and the racing mirrors are made of PC (polycarbonate) materials with a weight of 1.2, which, if manufactured with PCO, can reduce the weight of the mirrors. However, PCO has not been adopted due to strength and heat resistance issues. The company plans to bring the results of its experience in the racing industry back to the commercially available vehicles. Despite the small amount of production used in racing, PCO's molding molds are not ZAS-type, but standard molds made of mold steel. The SURFACE of the ZAS type is rough, the reflectivity is low, and pre-coating is required before steaming. Therefore, the use of standard molds can save the pre-coating, thereby reducing one process. While this is not important for racing, it is extremely important for VE (Value Engineering) for commercially available vehicles. According to China Coatings Onlineexperts, after taking the above-mentioned lightweight measures, the weight of the headlights are: 235g of the lamp body, 500g of the light circuit, the total total of 735g. The weight of the lamp is about half that of a commercially available car. In the field of racing, mirrors made of steel plate materials are still mainstream, and the quality of lightweight rear headlights is more obvious than that.
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