Is it feasible to use rubber material, middle canvas layer and outer rubber material in PVC rubber tube?
Cloth rubber tube, 68.5MM mold out, take off the mold, after natural cooling, measuring the diameter of only 67.8MM, rubber and cloth shrinkage!
Improvement measures: 1, adjust the process, plastic material in place; mixing rubber plastic stability; vulcanized rubbing with low temperature long time vulcanization; 2, test cloth in curing temperature shrinkage coefficient is too big, consider changing cloth;
