使用棚敞车装运易腐货物时隔热材料的厚度与始发加（夹）冰量的确定

The Thickness of Thermal Insulation Material and the Weight of Ice-Added in Using Box-Wagon and Open-Wagon to Load Perishable Goods

目前使用棚敞车代替冷藏车运输易腐货物的比例达８０％以上，如何保证其运输质量是一个急需解决的问题．本文就如何确定在棚敞车的“土冰保”运输中其隔热材料的厚度与始发加冰量进行了探讨，旨在既能保证货物质量完好，又能节省不必要的支出．其计算方法对实际工作具有指导意义，其结论和建议可供制订和修改规章时参考．

How to guarantee the quality of perishable goods transported with box-wagon and open-wagon is an emergency problem to be solved. In this paper, the thickness of thermal insulation material and the weight of ice-added in using the above two kinds of wagons to load perishable goods are discussed.The methods of calculation. conclusions and suggestions are helpful to practical work and of reference value in revising the relevant regulations.