Lightweight train window for high-speed train and manufacturing method of lightweight train window

Abstract

The invention relates to a lightweight train window for a high-speed train and a manufacturing method of the lightweight train window. The train window is of a hollow structure, a sandwich structure on the inner side comprises a first glass layer (1), a first film layer (2), a PET film (3), a second film layer (4) and a second glass layer (5) from indoor to outdoor sequentially; a sandwich structure on the outer side comprises a third glass layer (8), a third film layer (9), a fourth glass layer (10), a fourth film layer (11) and a fifth glass layer (12); the first glass layer (1) and the second glass layer (5) are chemically strengthened glass, and the thicknesses are 1.8 mm-2.0 mm; the first film layer (2) is low frequency sound insulation PVB, and the thickness is 0.38 mm; and the second film layer (4) is high frequency sound insulation PVB, and the thickness is 0.76 mm. The sound and thermal insulation performance of the train window is good. Weighting sound reduction index (Rw) isnot lower than 46 dB, the heat transfer coefficient (K) is smaller than 1.0 W / (m<2>.K), and the weight is only 70% of traditional high-speed train side window glass.

Description

technical field [0001] The invention relates to a lightweight window for high-speed trains and a manufacturing method thereof, belonging to the technical field of product molding. Background technique [0002] As the main artery of the national economy, the important national infrastructure and popular means of transportation, the railway plays an important role in the economic and social development of our country. The plan proposes to vigorously develop high-speed railways, basically build a fast railway network, and at the same time continuously improve the modernization level of rolling stock equipment, which brings historical opportunities for the rapid development of China's high-speed rail rolling stock equipment. It can be seen that high-speed trains, especially trains with a speed of more than 350Km per hour, will become the mainstream equipment for future international and domestic railway development. At the same time, the increase in train speed also puts forwar...

AI Technical Summary

Problems solved by technology

And existing high-speed train glass weight (glass surface density is less than 47kg / m 2 ), sound insulation and heat insulation properties cannot meet the above requirements

Images