Henan Coal Science Research Institute Keming Mechanical And Electrical Equipment Co., Ltd.
86-0371-67836512
stephen.z.wan@gmail.com
Too much springback:
The reason:
1.Improper aggregate grading curve
2.Spray distance is too short from the nozzle to working surface
3.Spray distance is too long from the nozzle to working surface
4.Spray direction is not vertical (90°) to working surface
How to solve:
1.Check the material grade and adjust it
2.Increase spray distance to about 0.8m
3.Reduce spray distance to about 1m
4.Adjust spray direction
