当输送带出现边沟的问题时，我们应该从根本上找原因，出现这种问题的原因主要有两个，一是配方;二是工艺;先说配方：是指边胶的配方，其流动性欠佳，与贴胶及盖胶不能达到共硫化;
When the problem of side ditch occurs in conveyor belt, we should find out the reason fundamentally. There are two main reasons for this problem: one is formula; the other is process; first, formula: refers to the formula of side glue, its fluidity is not good, and can not achieve co-vulcanization with sticker and cover glue;
再说工艺;是指输送带带坯成型工艺，带坯侧面不整齐，上边胶工艺没有按要求做，边胶与带坯之间有空隙，导致出现如上问题;
In addition, technology refers to the forming process of belt blank, the side of belt blank is not regular, the upper glue process is not done as required, and there is a gap between the side glue and the belt blank, which leads to the above problems.
最后是硫化工艺：如果以上两方面没有问题，在硫化过程中，成槽宽度及压缩比掌握(熟知并能运用) 不适宜也会出现边部边沟及边胶脱空的现象。
Finally, the vulcanization process: if there are no problems in the above two aspects, in the vulcanization process, the width of the groove and the compression ratio (well-known and can be used) are not suitable for the occurrence of edge ditch and edge rubber void phenomenon.