聚氨酯碰头是一种矿区运输用的矿车用于防止碰撞的新型产品，是矿车生产单位和矿车维修单位的
配套产品。当发生相撞时，不仅能起缓冲防撞作用，而且能起隔离作用。

Polyurethane meet is a new type of mine car used for transportation to prevent collisions. It is a supporting product for mine car production units and mine car repair units. When a collision occurs, it not only acts as a buffer and anti-collision, but also acts as an isolation.

聚氨酯弹性体是一种介于橡胶和塑料之间的新型高分子合成材料，它既具有塑料的高强度又具有橡胶的高弹性。在橡胶硬度下它们的扯断强度和承载能力比通用橡胶 高得多。在高硬度下其冲击强度和弯曲强度的又比塑料高得多。

Polyurethane elastomer is a new type of polymer synthetic material between rubber and plastic. It has both high strength of plastic and high elasticity of rubber. Their tear strength and load carrying capacity are much higher than rubber for rubber. At high hardness, its impact strength and flexural strength are much higher than plastic.

矿车是煤矿及矿山施工的重要工具，然而矿车在使用过程中容易出现矿车与矿车之间碰撞产生噪音、电火花甚至车毁的现象，直接影响煤矿的安全及工作效率。

Mine car is an important tool for coal mine and mine construction. However, in the process of using the mine car, the collision between the mine car and the mine car is likely to cause noise, electric spark or even car damage, which directly affects the safety and working efficiency of the coal mine.