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近年来,开始用ΠC-BC或Πc-B聚苯乙烯泡沫塑料块作为机保车车体的隔热材料。其重要性尚难以估计,但作为比较,布良斯克机器制造厂生产的米波拉的平均使用寿命为7～8年,聚苯乙烯泡沫塑料的使用寿命则与整个车辆的使用寿命相同。在铺装隔热材料时,塑料块之间要形成1～10毫米的缝隙,更紧密地铺装这些塑料块难以做到,因为在车体进行组装时,一些梁柱相对于其标准位置都会产生一定的误差,而每一聚苯乙烯块的就地修合则会增加进行隔热板铺装工作的繁重性。
In recent years, began with ΠC-BC or Πc-B polystyrene foam block as the body of the car insulation material. Its importance is yet to be estimated, but by comparison, the average service life of Micralabra manufactured by Bryansk Machine Works is seven to eight years, and polystyrene foam has the same useful life as the entire vehicle. When paving the insulation, a gap of 1 to 10 mm should be formed between the plastic blocks. Closing the plastic blocks more closely is difficult because in the assembly of the car body, some of the columns will be positioned relative to their standard positions Produce a certain error, and each piece of polystyrene block repair will increase the complexity of the insulation board pavement work.