进入21世纪以来,我国冷藏运输业及冷藏车、保温车制造业进入了稳步快速发展阶段,产销量年年增长。尤其是近些年来,我国冷藏保温汽车的生产技术,已有了很大进步,除了汽车底盘和制冷机组外,保温厢体的专用技术性能提高较快,其传热系数和漏气倍数,已接近西欧国家的水平。其原因在于厢体结构的改进及制造工艺水平的提高。 Since entering the 21st century, China’s refrigerated transport industry and refrigerated trucks, insulation truck manufacturing industry has entered a stage of steady and rapid development, production and sales increased annually. Especially in recent years, the production technology of refrigerated and insulated vehicles in our country has made great progress. In addition to the automobile chassis and refrigeration units, the special technical performance of the insulated car body has been improved rapidly. The heat transfer coefficient and blow-by gas multiples Close to the level of Western European countries. The reason is the improvement of the envelope structure and the improvement of the manufacturing process.