1. The injection moulding machine should be cleaned and adjusted at the lowest temperature. Only in this condition can be used for injection.
  2. Material should not last too long in injection moulding machine in case of charring.
  3. The products made by different injection machines are also different. Such as new machines and old machines, domestic machines and imported machines. They all need to be slowly debugged and solved.
  4. If the stirring slurry is metal, it can be stirred by wrapping a layer of cloth to prevent the friction of the iron.
  5. If do as the above tips, also occur blackening pls contact Mr. Guan 13591804490 for consultation.